CN118651407A - Braking system and aircraft - Google Patents
Braking system and aircraft Download PDFInfo
- Publication number
- CN118651407A CN118651407A CN202411147828.XA CN202411147828A CN118651407A CN 118651407 A CN118651407 A CN 118651407A CN 202411147828 A CN202411147828 A CN 202411147828A CN 118651407 A CN118651407 A CN 118651407A
- Authority
- CN
- China
- Prior art keywords
- proportional valve
- electric proportional
- electromagnetic valve
- switch electromagnetic
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003638 chemical reducing agent Substances 0.000 claims description 19
- 230000009471 action Effects 0.000 abstract description 26
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
Landscapes
- Regulating Braking Force (AREA)
Abstract
The invention discloses a braking system and an airplane, which are applied to the field of vehicles. The method comprises the following steps: the left electric proportional valve is connected with the right electric proportional valve, the third switch electromagnetic valve, the second switch electromagnetic valve, the first switch electromagnetic valve and the left machine wheel; the right electric proportional valve is connected with the third switch electromagnetic valve, the first switch electromagnetic valve, the second switch electromagnetic valve and the right machine wheel; the third switch electromagnetic valve is connected with the first switch electromagnetic valve, the left machine wheel, the second switch electromagnetic valve and the right machine wheel. Therefore, the braking action is realized by controlling the corresponding machine wheel through the corresponding electric proportional valve and the switching electromagnetic valve. Meanwhile, the left/right electric proportional valve is connected with the right/left machine wheel through a third switch electromagnetic valve and a second/one switch electromagnetic valve, and is used for controlling the braking action of the machine wheel when the electric proportional valve on one side fails. The invention improves the reliability and maintainability of the brake system and reduces the complexity of the brake system and the cost brought by a brake redundancy mode.
Description
Technical Field
The invention relates to the field of vehicles, in particular to a brake system and an airplane.
Background
Braking systems are one of the key factors affecting vehicle safety. Of the current braking systems, the electro-hydrostatic braking system has obvious advantages in structural parts and maintainability due to the integrated design, and is one of the most common and used braking systems.
The brake system is designed by adopting a redundancy means generally, and the specific design means is that two sets of identical brake devices are arranged in the brake system for ensuring that when one brake device fails, the other brake device can be normally used, so that the redundancy of braking is realized. For improving the safety of vehicles. However, since the brake system is a system for ensuring the safety of operators in a vehicle, two sets of brake devices exist in the brake system, and the accuracy requirement of the brake devices is high, thereby causing high cost of the brake devices.
In view of the foregoing, it would be desirable to find a braking system.
Disclosure of Invention
The invention aims to provide a braking system and an aircraft. The problem of the redundant mode of adopting among the prior art to bring increases brake equipment's cost can be solved.
In order to solve the above technical problems, the present invention provides a braking system, including: the left electric proportional valve, the right electric proportional valve, the first switch electromagnetic valve, the second switch electromagnetic valve, the third switch electromagnetic valve, the left machine wheel and the right machine wheel;
The first end of the left electric proportional valve is connected with the first end of the right electric proportional valve, the second end of the left electric proportional valve is connected with the first end of the third switching electromagnetic valve, the third end of the left electric proportional valve is connected with the first end of the second switching electromagnetic valve, the fourth end of the left electric proportional valve is connected with the first end of the first switching electromagnetic valve, and the fifth end of the left electric proportional valve is connected with the first end of the left machine wheel;
The second end of the right electric proportional valve is connected with the second end of the third switch electromagnetic valve, the third end of the right electric proportional valve is connected with the second end of the first switch electromagnetic valve, the fourth end of the right electric proportional valve is connected with the second end of the second switch electromagnetic valve, and the fifth end of the right electric proportional valve is connected with the first end of the right machine wheel;
The third end of the third switch electromagnetic valve is connected with the third end of the first switch electromagnetic valve and the second end of the left machine wheel, and the fourth end of the third switch electromagnetic valve is connected with the third end of the second switch electromagnetic valve and the second end of the right machine wheel.
Preferably, the system further comprises a controller and a distributor;
the first end of the controller is connected with the sixth end of the left electric proportional valve, the second end of the controller is connected with the sixth end of the right electric proportional valve, and the third end of the controller is connected with the first end of the distributor;
the second end of the distributor is connected with the seventh end of the left electric proportional valve, and the third end of the distributor is connected with the seventh end of the right electric proportional valve.
Preferably, the left electro proportional valve includes: the first power module, the first control board, the first driving board, the first electric proportional valve assembly and the first hydraulic unit;
The first power supply module is arranged on the first control board, and the input end of the first power supply module is used as a seventh end of the left electric proportional valve and is connected with the second end of the distributor;
The first end of the first control plate is used as the first end of the left electric proportional valve to be connected with the first end of the right electric proportional valve, the second end of the first control plate is used as the second end of the left electric proportional valve to be connected with the first end of the third switching electromagnetic valve, the third end of the first control plate is used as the third end of the left electric proportional valve to be connected with the first end of the second switching electromagnetic valve, the fourth end of the first control plate is connected with the first end of the first driving plate, the fifth end of the first control plate is connected with the first end of the first electric proportional valve component, the sixth end of the first control plate is connected with the first end of the first hydraulic unit, the seventh end of the first control plate is used as the fifth end of the left electric proportional valve to be connected with the first end of the left machine wheel, and the eighth end of the first control plate is used as the sixth end of the left electric proportional valve to be connected with the first end of the controller;
The second end of the first driving plate is connected with the second end of the first electric proportional valve component;
The third end of the first electric proportional valve component is connected with the second end of the first hydraulic unit;
The third end of the first hydraulic unit is connected with the first end of the first switch electromagnetic valve as the fourth end of the left electro-proportional valve.
Preferably, the first electrical proportional valve assembly comprises: a first motor, a first speed reducer and a first ball screw;
The first end of the first motor is used as the first end of the first electric proportional valve assembly to be connected with the fifth end of the first control board, the second end of the first motor is used as the second end of the first electric proportional valve assembly to be connected with the second end of the first driving board, and the third end of the first motor is connected with the first end of the first speed reducer;
the second end of the first speed reducer is connected with the first end of the first ball screw;
The second end of the first ball screw is connected to the second end of the first hydraulic unit as a third end of the first electro-proportional valve assembly.
Preferably, the right electro proportional valve includes: the second power module, the second control board, the second driving board, the second electric proportional valve assembly and the second hydraulic unit;
the second power supply module is arranged on the second control board, and the input end of the second power supply module is used as a seventh end of the right electric proportional valve and is connected with the second end of the distributor;
The first end of the second control plate is used as the first end of the right electric proportional valve to be connected with the first end of the left electric proportional valve, the second end of the second control plate is used as the second end of the right electric proportional valve to be connected with the second end of the third switch electromagnetic valve, the third end of the second control plate is used as the third end of the right electric proportional valve to be connected with the second end of the first switch electromagnetic valve, the fourth end of the second control plate is connected with the first end of the second driving plate, the fifth end of the second control plate is connected with the first end of the second electric proportional valve component, the sixth end of the second control plate is used as the fifth end of the right electric proportional valve to be connected with the first end of the right machine wheel, and the eighth end of the second control plate is used as the sixth end of the right electric proportional valve to be connected with the second end of the controller;
The second end of the second driving plate is connected with the second end of the second electric proportional valve assembly;
The third end of the second electric proportional valve assembly is connected with the second end of the second hydraulic unit;
The third end of the second hydraulic unit is connected with the second end of the second switch electromagnetic valve as the fourth end of the right electro-proportional valve.
Preferably, the second electrical proportional valve assembly comprises: a second motor, a second speed reducer and a second ball screw;
the first end of the second motor is used as the first end of the second electric proportional valve assembly to be connected with the fifth end of the second control board, the second end of the second motor is used as the second end of the second electric proportional valve assembly to be connected with the second end of the second driving board, and the third end of the second motor is connected with the first end of the second speed reducer;
The second end of the second speed reducer is connected with the first end of the second ball screw;
The second end of the second ball screw is connected to the second end of the second hydraulic unit as a third end of the second electro-proportional valve assembly.
Preferably, the left wheel comprises: the left wheel assembly, the left brake device and the left wheel speed sensor;
The left brake device is arranged on the left wheel assembly, the first end of the left wheel assembly is connected with the first end of the left wheel speed sensor, and the second end of the left wheel assembly is used as the second end of the left wheel and is connected with the third end of the first switch electromagnetic valve and the third end of the third switch electromagnetic valve;
the second end of the left wheel speed sensor is used as a first end of the left wheel and is connected with the fifth end of the left electric proportional valve.
Preferably, the right wheel comprises: the right wheel assembly, the right brake device and the right wheel speed sensor;
The right brake device is arranged on the right wheel assembly, the first end of the right wheel assembly is connected with the first end of the right wheel speed sensor, and the second end of the right wheel assembly is used as the second end of the right wheel and is connected with the third end of the second switch electromagnetic valve and the fourth end of the third switch electromagnetic valve;
The second end of the right wheel speed sensor is used as the first end of the right wheel and is connected with the fifth end of the right electric proportional valve.
Preferably, the first switching electromagnetic valve and the second switching electromagnetic valve adopt normally open electromagnetic valves, and the third switching electromagnetic valve adopts normally closed electromagnetic valves.
In order to solve the technical problems, the invention also provides an aircraft, which comprises the brake system, an aircraft body, a propulsion system, an operating system, a landing gear and airborne equipment; wherein, propulsion system, operating system and braking system all set up in the airborne equipment, and airborne equipment, landing gear all set up in the organism.
The invention provides a brake system, comprising: the left electric proportional valve, the right electric proportional valve, the first switch electromagnetic valve, the second switch electromagnetic valve, the third switch electromagnetic valve, the left machine wheel and the right machine wheel; the first end of the left electric proportional valve is connected with the first end of the right electric proportional valve, the second end of the left electric proportional valve is connected with the first end of the third switching electromagnetic valve, the third end of the left electric proportional valve is connected with the first end of the second switching electromagnetic valve, the fourth end of the left electric proportional valve is connected with the first end of the first switching electromagnetic valve, and the fifth end of the left electric proportional valve is connected with the first end of the left machine wheel; the second end of the right electric proportional valve is connected with the second end of the third switch electromagnetic valve, the third end of the right electric proportional valve is connected with the second end of the first switch electromagnetic valve, the fourth end of the right electric proportional valve is connected with the second end of the second switch electromagnetic valve, and the fifth end of the right electric proportional valve is connected with the first end of the right machine wheel; the third end of the third switch electromagnetic valve is connected with the third end of the first switch electromagnetic valve and the second end of the left machine wheel, and the fourth end of the third switch electromagnetic valve is connected with the third end of the second switch electromagnetic valve and the second end of the right machine wheel. Therefore, the first switch electromagnetic valve corresponds to the left electric proportional valve and the left wheel, and the left wheel can be controlled to realize braking action through the left electric proportional valve; the second switch electromagnetic valve corresponds to the right electric proportional valve and the right machine wheel, and the right machine wheel can be controlled by the right electric proportional valve to realize braking action. On the basis, the right electric proportional valve is also connected with the left wheel through a third switch electromagnetic valve and a first switch electromagnetic valve, and is used for controlling the braking action of the left wheel when the left electric proportional valve fails or the first switch electromagnetic valve fails; similarly, the left electric proportional valve is further connected with the right wheel through a third switch electromagnetic valve and a second switch electromagnetic valve and used for controlling the braking action of the right wheel when the right electric proportional valve fails or the second switch electromagnetic valve fails. In the whole, the invention improves the reliability, interchangeability and maintainability of the brake system, and reduces the complexity of the brake system and the cost brought by a brake redundancy mode.
Drawings
For a clearer description of embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described, it being apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
FIG. 1 is a block diagram of a brake system according to an embodiment of the present invention;
Fig. 2 is a structural diagram of a left electric proportional valve according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without making any inventive effort are within the scope of the present invention.
The core of the invention is to provide a braking system and an aircraft.
In order to better understand the aspects of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.
In order to solve the above technical problems, the present invention provides a braking system, as shown in fig. 1, comprising: the left electric proportional valve 1, the right electric proportional valve 2, the first switching electromagnetic valve 3, the second switching electromagnetic valve 4, the third switching electromagnetic valve 5, the left machine wheel 6 and the right machine wheel 7;
The first end of the left electric proportional valve 1 is connected with the first end of the right electric proportional valve 2, the second end of the left electric proportional valve 1 is connected with the first end of the third switching electromagnetic valve 5, the third end of the left electric proportional valve 1 is connected with the first end of the second switching electromagnetic valve 4, the fourth end of the left electric proportional valve 1 is connected with the first end of the first switching electromagnetic valve 3, and the fifth end of the left electric proportional valve 1 is connected with the first end of the left wheel 6;
The second end of the right electric proportional valve 2 is connected with the second end of the third switch electromagnetic valve 5, the third end of the right electric proportional valve 2 is connected with the second end of the first switch electromagnetic valve 3, the fourth end of the right electric proportional valve 2 is connected with the second end of the second switch electromagnetic valve 4, and the fifth end of the right electric proportional valve 2 is connected with the first end of the right machine wheel 7;
The third end of the third switch electromagnetic valve 5 is connected with the third end of the first switch electromagnetic valve 3 and the second end of the left machine wheel 6, and the fourth end of the third switch electromagnetic valve 5 is connected with the third end of the second switch electromagnetic valve 4 and the second end of the right machine wheel 7.
In a specific embodiment, the first end of the left electric proportional valve 1 is connected with the first end of the right electric proportional valve 2, and is used for mutually detecting whether the other side fails or not through SPI communication; the second end of the left electric proportional valve 1 is connected with the first end of a third switch electromagnetic valve 5, the third end of the third switch electromagnetic valve 5 is connected with the third end of the first switch electromagnetic valve 3 and the second end of the left wheel 6, and the left electric proportional valve 1 is used for controlling the right wheel 7 to realize braking action through the third switch electromagnetic valve 5 when the right electric proportional valve 2 fails/the second switch electromagnetic valve 4 fails; the third end of the left electric proportional valve 1 is connected with the first end of the second switch electromagnetic valve 4, and is used for controlling the right machine wheel 7 to realize braking action through the second switch electromagnetic valve 4 by the left electric proportional valve 1 when the right electric proportional valve 2 fails; the fourth end of the left electric proportional valve 1 is connected with the first end of the first switch electromagnetic valve 3, and is used for controlling the left wheel 6 to realize braking action through the first switch electromagnetic valve 3 by the left electric proportional valve 1 when the left electric proportional valve 1 is free from faults and the first switch electromagnetic valve 3 is also free from faults; the fifth end of the left electro proportional valve 1 is connected with the first end of the left wheel 6 and is used for receiving the wheel rotating speed of the left wheel 6 and the state after braking.
In a specific embodiment, the second end of the right electric proportional valve 2 is connected with the second end of the third switch electromagnetic valve 5, and the fourth end of the third switch electromagnetic valve 5 is connected with the third end of the second switch electromagnetic valve 4 and the second end of the right machine wheel 7, so that when the left electric proportional valve 1 fails/the first switch electromagnetic valve 3 fails, the right electric proportional valve 2 controls the left machine wheel 6 to realize braking action through the third switch electromagnetic valve 5; the third end of the right electric proportional valve 2 is connected with the second end of the first switch electromagnetic valve 3, and is used for controlling the left wheel 6 to realize braking action through the first switch electromagnetic valve 3 by the right electric proportional valve 2 when the left electric proportional valve 1 fails; the fourth end of the right electric proportional valve 2 is connected with the second end of the second switching electromagnetic valve 4, and is used for controlling the right machine wheel 7 to realize braking action through the second switching electromagnetic valve 4 by the right electric proportional valve 2 when the right electric proportional valve 2 has no fault and the second switching electromagnetic valve 4 has no fault; the fifth end of the right electro proportional valve 2 is connected with the first end of the right wheel 7 and is used for receiving the wheel rotating speed of the right wheel 7 and the state after braking.
The specific process for realizing the braking action is as follows: the hydraulic pressure output by the electric proportional valve is sent into a braking device in the wheel through the switch electromagnetic valve, so that braking action is realized, and the switch electromagnetic valve is normally closed at the moment. Because the oil pressures at the left side and the right side are mutually isolated, the braking action at the corresponding side can be realized through the electric proportional valve and the switching electromagnetic valve at the respective sides. When an electric proportional valve on one side fails (including 422 communication failure, power module failure, control module failure, driving module failure, motor burnout, speed reducer, ball screw clamping stagnation and the like), the failure side can report or stop sending out 'heartbeat', the electric proportional valve on the other side is completely transmitted to the electric proportional valve on the other side through SPI communication, the electric proportional valve on the normal side controls the switching electromagnetic valve (normally open) on the failure side to be closed, the third switching electromagnetic valve 5 (normally closed) to be opened, hydraulic oil on the normal side enters a braking device in a machine wheel on the failure side through the third switching electromagnetic valve 5 (normally closed), at the moment, the system enters an emergency braking state, the braking pressure is reduced, the oil pressure in left/right machine wheels is consistent, and the system is in a non-skid emergency braking state.
In this case, the first switching solenoid valve and the second switching solenoid valve are preferably normally open solenoid valves, and the third switching solenoid valve is preferably a normally closed solenoid valve.
The foregoing is summarized to obtain an emergency treatment table corresponding to the braking system provided by the invention, as shown in table 1.
Table 1 emergency treatment table
The invention provides a brake system, comprising: the left electric proportional valve, the right electric proportional valve, the first switch electromagnetic valve, the second switch electromagnetic valve, the third switch electromagnetic valve, the left machine wheel and the right machine wheel; the first end of the left electric proportional valve is connected with the first end of the right electric proportional valve, the second end of the left electric proportional valve is connected with the first end of the third switching electromagnetic valve, the third end of the left electric proportional valve is connected with the first end of the second switching electromagnetic valve, the fourth end of the left electric proportional valve is connected with the first end of the first switching electromagnetic valve, and the fifth end of the left electric proportional valve is connected with the first end of the left machine wheel; the second end of the right electric proportional valve is connected with the second end of the third switch electromagnetic valve, the third end of the right electric proportional valve is connected with the second end of the first switch electromagnetic valve, the fourth end of the right electric proportional valve is connected with the second end of the second switch electromagnetic valve, and the fifth end of the right electric proportional valve is connected with the first end of the right machine wheel; the third end of the third switch electromagnetic valve is connected with the third end of the first switch electromagnetic valve and the second end of the left machine wheel, and the fourth end of the third switch electromagnetic valve is connected with the third end of the second switch electromagnetic valve and the second end of the right machine wheel. Therefore, the first switch electromagnetic valve corresponds to the left electric proportional valve and the left wheel, and the left wheel can be controlled to realize braking action through the left electric proportional valve; the second switch electromagnetic valve corresponds to the right electric proportional valve and the right machine wheel, and the right machine wheel can be controlled by the right electric proportional valve to realize braking action. On the basis, the right electric proportional valve is also connected with the left wheel through a third switch electromagnetic valve and a first switch electromagnetic valve, and is used for controlling the braking action of the left wheel when the left electric proportional valve fails or the first switch electromagnetic valve fails; similarly, the left electric proportional valve is further connected with the right wheel through a third switch electromagnetic valve and a second switch electromagnetic valve and used for controlling the braking action of the right wheel when the right electric proportional valve fails or the second switch electromagnetic valve fails. In the whole, the invention improves the reliability, interchangeability and maintainability of the brake system, and reduces the complexity of the brake system and the cost brought by a brake redundancy mode.
On the basis of the above embodiment, as a preferred embodiment, the power distribution system further comprises a controller and a power distributor;
the first end of the controller is connected with the sixth end of the left electric proportional valve, the second end of the controller is connected with the sixth end of the right electric proportional valve, and the third end of the controller is connected with the first end of the distributor;
the second end of the distributor is connected with the seventh end of the left electric proportional valve, and the third end of the distributor is connected with the seventh end of the right electric proportional valve.
In a specific embodiment, as shown in fig. 1, the braking system further includes: a controller 8 and a distributor 9. The first end of the controller 8 is connected with the sixth end of the left electric proportional valve 1, the second end of the controller 8 is connected with the sixth end of the right electric proportional valve 2, and data transmission is performed through the RS422 (mainly, the controller 8 needs data to judge whether the electric proportional valve has a fault or not, and the fault monitoring and the fault processing are performed on the electric proportional valve); a third end of the controller 8 is connected with a first end of the distributor 9 and is used for sending a brake power-on signal to the distributor; the second end of the distributor 9 is connected with the seventh end of the left electric proportional valve 1, and the third end of the distributor 9 is connected with the seventh end of the right electric proportional valve 2 for supplying power to the electric proportional valve.
It should be noted that the present invention is only one implementation manner, but is not limited to only such an implementation manner, and may be set according to the needs of the user.
The invention realizes control and detection of the left electric proportional valve and the right electric proportional valve through the controller, and simultaneously electrifies the left electric proportional valve and the right electric proportional valve through the distributor, thereby improving the monitoring capability of the electric proportional valve and improving the stability of the system.
On the basis of the above embodiment, as a preferred embodiment, as shown in fig. 2, wherein the left electro proportional valve 1 includes: a first power module 11, a first control board 12, a first drive board 13, a first electro-proportional valve assembly 14, and a first hydraulic unit 15;
The first power module 11 is arranged on the first control board 12, and the input end of the first power module 11 is used as the seventh end of the left electric proportional valve 1 and is connected with the second end of the distributor 9;
The first end of the first control board 12 is used as the first end of the left electric proportional valve 1 to be connected with the first end of the right electric proportional valve 2, the second end of the first control board 12 is used as the second end of the left electric proportional valve 1 to be connected with the first end of the third switch electromagnetic valve 5, the third end of the first control board 12 is used as the third end of the left electric proportional valve 1 to be connected with the first end of the second switch electromagnetic valve 4, the fourth end of the first control board 12 is used as the first end of the first driving board 13, the fifth end of the first control board 12 is connected with the first end of the first electric proportional valve assembly 14, the sixth end of the first control board 12 is used as the fifth end of the left electric proportional valve 1 to be connected with the first end of the left machine wheel 6, and the eighth end of the first control board 12 is used as the sixth end of the left electric proportional valve 1 to be connected with the first end of the controller 8;
a second end of the first drive plate 13 is connected to a second end of the first electro-proportional valve assembly 14;
The third end of the first electro proportional valve assembly 14 is connected to the second end of the first hydraulic unit 15;
the third end of the first hydraulic unit 15 is connected to the first end of the first on-off solenoid valve 3 as the fourth end of the left electro proportional valve 1.
Wherein the first electro-proportional valve assembly 14 comprises: a first motor 16, a first speed reducer 17, and a first ball screw 18;
A first end of the first motor 16 is connected with a fifth end of the first control board 12 as a first end of the first electric proportional valve assembly 14, a second end of the first motor 16 is connected with a second end of the first driving board 13 as a second end of the first electric proportional valve assembly 14, and a third end of the first motor 16 is connected with a first end of the first speed reducer 17;
The second end of the first speed reducer 17 is connected with the first end of the first ball screw 18;
A second end of the first ball screw 18 is connected as a third end of the first electro proportional valve assembly 14 to a second end of the first hydraulic unit 15.
In a specific embodiment, as shown in fig. 2, the first power module 11 is disposed on the first control board 12, and an input end of the first power module 11 is connected to the second end of the distributor 9 as a seventh end of the left proportional valve 1, and is used for receiving the electric quantity sent by the distributor 2 and serving as a new power supply device to supply power to the first control board; the first end of the first control board 12 is used as the first end of the left electric proportional valve 1 and is connected with the first end of the right electric proportional valve 2, and is used for communicating the left electric proportional valve with the right electric proportional valve through SPI; the second end of the first control board 12 is used as the second end of the left electric proportional valve 1 to be connected with the first end of the third switch electromagnetic valve 5, and the third end of the first control board 12 is used as the third end of the left electric proportional valve 1 to be connected with the first end of the second switch electromagnetic valve 4, so as to control the left machine wheel to realize braking action through the switch electromagnetic valve; the fourth end of the first control board 12 is connected to the first end of the first driving board 13, and is used for sending the signal of the first control board to the first driving board; the fifth end of the first control board 12 is connected to the first end of the first electro-proportional valve assembly 14 for signaling to the first electro-proportional valve assembly to effect braking action; the sixth end of the first control board 12 is connected to the first end of the first hydraulic unit 15, and is used for judging a hydraulic pressure signal; the seventh end of the first control board 12 is used as the fifth end of the left electro proportional valve 1 and is connected with the first end of the left wheel 6, and is used for acquiring the rotating speed signal of the left wheel and the like; the eighth end of the first control board 12 is used as the sixth end of the left electric proportional valve 1 and is connected with the first end of the controller 8, so as to perform data transmission through the RS422 (mainly, the controller 8 needs data to determine whether the electric proportional valve has a fault, and performs fault monitoring and fault processing on the electric proportional valve).
It should be noted that the present invention is only one implementation manner, but is not limited to only such an implementation manner, and may be set according to the needs of the user.
And (3) the same principle: the right electric proportional valve and the left electric proportional valve have the same functions, and therefore have the same structure: the right electro proportional valve 2 includes: the second power module, the second control board, the second driving board, the second electric proportional valve assembly and the second hydraulic unit;
the second power supply module is arranged on the second control board, and the input end of the second power supply module is used as a seventh end of the right electric proportional valve and is connected with the second end of the distributor;
The first end of the second control board is used as the first end of the right electric proportional valve 2 to be connected with the first end of the left electric proportional valve 1, the second end of the second control board is used as the second end of the right electric proportional valve 2 to be connected with the second end of the third switch electromagnetic valve 5, the third end of the second control board is used as the third end of the right electric proportional valve 2 to be connected with the second end of the first switch electromagnetic valve 3, the fourth end of the second control board is connected with the first end of the second driving board, the fifth end of the second control board is connected with the first end of the second electric proportional valve component, the sixth end of the second control board is used as the fifth end of the right electric proportional valve 2 to be connected with the first end of the right wheel 7, and the eighth end of the second control board is used as the sixth end of the right electric proportional valve 2 to be connected with the second end of the controller 8;
The second end of the second driving plate is connected with the second end of the second electric proportional valve assembly;
The third end of the second electric proportional valve assembly is connected with the second end of the second hydraulic unit;
The third end of the second hydraulic unit is connected with the second end of the second switching electromagnetic valve 4 as the fourth end of the right electro proportional valve 2.
Wherein the second electrical proportional valve assembly comprises: a second motor, a second speed reducer and a second ball screw;
the first end of the second motor is used as the first end of the second electric proportional valve assembly to be connected with the fifth end of the second control board, the second end of the second motor is used as the second end of the second electric proportional valve assembly to be connected with the second end of the second driving board, and the third end of the second motor is connected with the first end of the second speed reducer;
The second end of the second speed reducer is connected with the first end of the second ball screw;
The second end of the second ball screw is connected to the second end of the second hydraulic unit as a third end of the second electro-proportional valve assembly.
It should be noted that the functions of the right electro-proportional valve 2 and the left electro-proportional valve 1 are the same, so that the structures are the same, the schematic diagrams are the same, and the description of the present invention is omitted.
It should be noted that the present invention is only one implementation manner, but is not limited to only such an implementation manner, and may be set according to the needs of the user.
The invention provides a complete left electric proportional valve structure and a complete right electric proportional valve structure, according to the structure, braking actions can be executed after information sent by a controller is acquired, and the invention improves the reliability, interchangeability and maintainability of a braking system and reduces the complexity of the braking system and the cost brought by a braking redundancy mode.
On the basis of the above embodiment, as a preferred embodiment, the left wheel includes: the left wheel assembly, the left brake device and the left wheel speed sensor;
the left brake device is arranged on a left wheel assembly, a first end of the left wheel assembly is connected with a first end of a left wheel speed sensor, and a second end of the left wheel assembly serving as a second end of a left wheel is connected with a third end of the first switch electromagnetic valve 3 and a third end of the third switch electromagnetic valve 5;
The second end of the left wheel speed sensor is used as the first end of the left wheel and is connected with the fifth end of the left electric proportional valve 1.
Similarly, the right wheel includes: the right wheel assembly, the right brake device and the right wheel speed sensor;
The right brake device is arranged on a right wheel assembly, a first end of the right wheel assembly is connected with a first end of a right wheel speed sensor, and a second end of the right wheel assembly serving as a second end of a right wheel is connected with a third end of a second switch electromagnetic valve 4 and a fourth end of a third switch electromagnetic valve 5;
The second end of the right wheel speed sensor is connected with the fifth end of the right electric proportional valve 2 as the first end of the right wheel 7.
In a specific embodiment, the left brake device is arranged on a left wheel assembly, a first end of the left wheel assembly is connected with a first end of a left wheel speed sensor, and a second end of the left wheel assembly serving as a second end of a left wheel is connected with a third end of the first switch electromagnetic valve 3 and a third end of the third switch electromagnetic valve 5; the hydraulic brake device is used for receiving hydraulic pressure sent by the first switch electromagnetic valve 3 and the third switch electromagnetic valve 5 and realizing a brake function through the left brake component and the left machine wheel component; the second end of the left wheel speed sensor is used as a first end of a left wheel and is connected with the fifth end of the left electric proportional valve 1, and is used for detecting the rotating speed of the left wheel and sending the rotating speed to the left electric proportional valve 1.
It should be noted that the structure of the right wheel 7 is the same as that of the left wheel 6, and the functions are the same, and the invention is not described in detail.
The invention provides a complete structure of the left wheel and the right wheel, according to the structure, the braking action of the left wheel and the right wheel is realized, meanwhile, the rotating speed of the current wheel can be sent to the electric proportional valve according to the internal wheel speed sensor and further sent to the controller, so that the electric proportional valve and the controller can conveniently master the state of the current wheel, and the safety coefficient and the reliability of a braking system are improved.
In order to solve the technical problems, the invention also provides an aircraft, which comprises the brake system, an aircraft body, a propulsion system, an operating system, a landing gear and airborne equipment; the propulsion system, the control system and the braking system are arranged in the airborne equipment, and the airborne equipment and the landing gear are arranged in the machine body and have the same beneficial effects.
The embodiment of the aircraft provided by the invention is the same as the embodiment of the braking system, and the invention is not repeated here.
The above description is provided for a brake system and an aircraft according to the present invention. In the description, each embodiment is described in a progressive manner, and each embodiment is mainly described by the differences from other embodiments, so that the same similar parts among the embodiments are mutually referred. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
It should also be noted that in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A braking system, comprising: the left electric proportional valve, the right electric proportional valve, the first switch electromagnetic valve, the second switch electromagnetic valve, the third switch electromagnetic valve, the left machine wheel and the right machine wheel;
The first end of the left electric proportional valve is connected with the first end of the right electric proportional valve, the second end of the left electric proportional valve is connected with the first end of the third switch electromagnetic valve, the third end of the left electric proportional valve is connected with the first end of the second switch electromagnetic valve, the fourth end of the left electric proportional valve is connected with the first end of the first switch electromagnetic valve, and the fifth end of the left electric proportional valve is connected with the first end of the left machine wheel;
The second end of the right electric proportional valve is connected with the second end of the third switch electromagnetic valve, the third end of the right electric proportional valve is connected with the second end of the first switch electromagnetic valve, the fourth end of the right electric proportional valve is connected with the second end of the second switch electromagnetic valve, and the fifth end of the right electric proportional valve is connected with the first end of the right machine wheel;
the third end of the third switch electromagnetic valve is connected with the third end of the first switch electromagnetic valve and the second end of the left wheel, and the fourth end of the third switch electromagnetic valve is connected with the third end of the second switch electromagnetic valve and the second end of the right wheel.
2. The brake system of claim 1, further comprising a controller and a power distributor;
The first end of the controller is connected with the sixth end of the left electric proportional valve, the second end of the controller is connected with the sixth end of the right electric proportional valve, and the third end of the controller is connected with the first end of the distributor;
The second end of the distributor is connected with the seventh end of the left electric proportional valve, and the third end of the distributor is connected with the seventh end of the right electric proportional valve.
3. The brake system of claim 2, wherein the left electro-proportional valve comprises: the first power module, the first control board, the first driving board, the first electric proportional valve assembly and the first hydraulic unit;
the first power supply module is arranged on the first control board, and the input end of the first power supply module is used as a seventh end of the left electric proportional valve and is connected with the second end of the distributor;
The first end of the first control plate is used as the first end of the left electric proportional valve to be connected with the first end of the right electric proportional valve, the second end of the first control plate is used as the second end of the left electric proportional valve to be connected with the first end of the third switch electromagnetic valve, the third end of the first control plate is used as the third end of the left electric proportional valve to be connected with the first end of the second switch electromagnetic valve, the fourth end of the first control plate is used as the first end of the first driving plate to be connected with the first end of the first electric proportional valve assembly, the fifth end of the first control plate is used as the fifth end of the left electric proportional valve to be connected with the first end of the left machine wheel, and the eighth end of the first control plate is used as the sixth end of the left electric proportional valve to be connected with the first end of the controller;
the second end of the first driving plate is connected with the second end of the first electric proportional valve component;
The third end of the first electro-proportional valve assembly is connected with the second end of the first hydraulic unit;
and the third end of the first hydraulic unit is used as the fourth end of the left electro-proportional valve and is connected with the first end of the first switch electromagnetic valve.
4. A brake system according to claim 3, wherein the first electrical proportional valve assembly comprises: a first motor, a first speed reducer and a first ball screw;
The first end of the first motor is used as the first end of the first electric proportional valve assembly to be connected with the fifth end of the first control board, the second end of the first motor is used as the second end of the first electric proportional valve assembly to be connected with the second end of the first driving board, and the third end of the first motor is connected with the first end of the first speed reducer;
the second end of the first speed reducer is connected with the first end of the first ball screw;
the second end of the first ball screw is connected with the second end of the first hydraulic unit as the third end of the first electro-proportional valve assembly.
5. The brake system of claim 2, wherein the right electro-proportional valve comprises: the second power module, the second control board, the second driving board, the second electric proportional valve assembly and the second hydraulic unit;
The second power supply module is arranged on the second control board, and the input end of the second power supply module is used as a seventh end of the right electric proportional valve and is connected with the second end of the distributor;
The first end of the second control plate is used as the first end of the right electric proportional valve to be connected with the first end of the left electric proportional valve, the second end of the second control plate is used as the second end of the right electric proportional valve to be connected with the second end of the third switch electromagnetic valve, the third end of the second control plate is used as the third end of the right electric proportional valve to be connected with the second end of the first switch electromagnetic valve, the fourth end of the second control plate is used as the first end of the second driving plate to be connected with the first end of the second electric proportional valve assembly, the fifth end of the second control plate is used as the sixth end of the right electric proportional valve to be connected with the second end of the controller, and the sixth end of the second control plate is used as the sixth end of the right electric proportional valve to be connected with the first end of the right machine wheel;
the second end of the second driving plate is connected with the second end of the second electric proportional valve assembly;
The third end of the second electro-proportional valve assembly is connected with the second end of the second hydraulic unit;
And the third end of the second hydraulic unit is used as the fourth end of the right electro-proportional valve and is connected with the second end of the second switch electromagnetic valve.
6. The brake system of claim 5, wherein the second electrical proportional valve assembly comprises: a second motor, a second speed reducer and a second ball screw;
The first end of the second motor is used as the first end of the second electric proportional valve assembly to be connected with the fifth end of the second control board, the second end of the second motor is used as the second end of the second electric proportional valve assembly to be connected with the second end of the second driving board, and the third end of the second motor is connected with the first end of the second speed reducer;
the second end of the second speed reducer is connected with the first end of the second ball screw;
the second end of the second ball screw is connected with the second end of the second hydraulic unit as the third end of the second electric proportional valve assembly.
7. The braking system of claim 2, wherein the left wheel comprises: the left wheel assembly, the left brake device and the left wheel speed sensor;
The left brake device is arranged on the left wheel assembly, the first end of the left wheel assembly is connected with the first end of the left wheel speed sensor, and the second end of the left wheel assembly is used as the second end of the left wheel and is connected with the third end of the first switch electromagnetic valve and the third end of the third switch electromagnetic valve;
and the second end of the left wheel speed sensor is used as a first end of the left wheel and is connected with the fifth end of the left electric proportional valve.
8. The braking system of claim 2, wherein the right wheel comprises: the right wheel assembly, the right brake device and the right wheel speed sensor;
The right brake device is arranged on the right wheel assembly, the first end of the right wheel assembly is connected with the first end of the right wheel speed sensor, and the second end of the right wheel assembly is used as the second end of the right wheel and is connected with the third end of the second switch electromagnetic valve and the fourth end of the third switch electromagnetic valve;
And the second end of the right wheel speed sensor is used as a first end of the right wheel and is connected with the fifth end of the right electric proportional valve.
9. The brake system according to any one of claims 1 to 8, wherein the first switching solenoid valve and the second switching solenoid valve are normally open solenoid valves, and the third switching solenoid valve is a normally closed solenoid valve.
10. An aircraft comprising a braking system, a machine body, a propulsion system, a steering system, a landing gear, and an on-board device according to any one of claims 1 to 9; wherein the propulsion system, the steering system and the braking system are all arranged in the onboard equipment, and the onboard equipment and the landing gear are all arranged in the machine body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411147828.XA CN118651407B (en) | 2024-08-21 | 2024-08-21 | Braking system and aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411147828.XA CN118651407B (en) | 2024-08-21 | 2024-08-21 | Braking system and aircraft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118651407A true CN118651407A (en) | 2024-09-17 |
| CN118651407B CN118651407B (en) | 2024-10-15 |
Family
ID=92705963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411147828.XA Active CN118651407B (en) | 2024-08-21 | 2024-08-21 | Braking system and aircraft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118651407B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110079471A1 (en) * | 2008-06-04 | 2011-04-07 | Messier-Bugati | Electric braking circuit provided with means for controlling members for blocking the pushers of electromechanical actuators fitted to an aircraft brake |
| US20150115698A1 (en) * | 2013-10-24 | 2015-04-30 | Audi Ag | Motor vehicle |
| CN112721885A (en) * | 2020-12-30 | 2021-04-30 | 中国航空工业集团公司沈阳飞机设计研究所 | Brake control system based on data reconstruction |
| US20220055600A1 (en) * | 2020-08-20 | 2022-02-24 | Goodrich Corporation | Systems and methods for pressure control mixed mode for braking operation |
| CN117141715A (en) * | 2023-09-22 | 2023-12-01 | 西安航空制动科技有限公司 | Airplane redundancy wheel brake control system and switching method thereof |
-
2024
- 2024-08-21 CN CN202411147828.XA patent/CN118651407B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110079471A1 (en) * | 2008-06-04 | 2011-04-07 | Messier-Bugati | Electric braking circuit provided with means for controlling members for blocking the pushers of electromechanical actuators fitted to an aircraft brake |
| US20150115698A1 (en) * | 2013-10-24 | 2015-04-30 | Audi Ag | Motor vehicle |
| US20220055600A1 (en) * | 2020-08-20 | 2022-02-24 | Goodrich Corporation | Systems and methods for pressure control mixed mode for braking operation |
| CN112721885A (en) * | 2020-12-30 | 2021-04-30 | 中国航空工业集团公司沈阳飞机设计研究所 | Brake control system based on data reconstruction |
| CN117141715A (en) * | 2023-09-22 | 2023-12-01 | 西安航空制动科技有限公司 | Airplane redundancy wheel brake control system and switching method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 惠晓强;周波;张磊;杨宁;: "数字式防滑刹车综合控制器的设计", 航空计算技术, no. 05, 15 September 2010 (2010-09-15), pages 126 - 130 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118651407B (en) | 2024-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112188976B (en) | Brake system with two pressure sources and method for operating the same | |
| CN109733461B (en) | Redundant electronic steering system and control method for autonomous vehicle | |
| US5752748A (en) | Electronic brake system with back-up control during central module failure | |
| CN104002784B (en) | Brake control system of multi-wheel-train brake machine wheel | |
| EP2964499B1 (en) | Brake actuation unit | |
| EP1541437B1 (en) | Electronic braking system for a vehicle | |
| US6390571B1 (en) | Redundant aircraft braking system architecture | |
| CN109733460B (en) | Redundant electronic steering brake system | |
| CN208053433U (en) | Vehicle redundant electronic braking in a turn system | |
| CN110182187B (en) | Energy feedback type active braking system with failure protection capability and control method | |
| WO2014135370A1 (en) | Brake system for a motor vehicle | |
| CN208053434U (en) | Vehicle redundant electronic servo steering system | |
| US6089678A (en) | Hydraulic braking systems for vehicles | |
| CN112703138B (en) | Brake system for vehicle | |
| CN112141067A (en) | Brake system of integrated electro-hydraulic brake source wheel-side coupling device and control method thereof | |
| CN118651407B (en) | Braking system and aircraft | |
| CN207374368U (en) | Vehicle stabilization controls and line traffic control parking braking integrating device | |
| CN115151457B (en) | Control device of electronic parking brake system | |
| CN111497807B (en) | Electromagnetic valve redundancy control circuit of vehicle braking system and control method thereof | |
| CN117184042B (en) | Electronic car body stability control system and device integrated with EPB | |
| CN112606808A (en) | Brake device with electronic brake booster | |
| US20080147247A1 (en) | Circuit for controlling an acceleration, braking and steering system of a vehicle | |
| CN207955769U (en) | Vehicle redundant electronic steering | |
| CN212401165U (en) | Redundant control circuit of solenoid valve of vehicle braking system | |
| CN112105538B (en) | Control system for a motor vehicle, method for controlling a motor vehicle and computer-readable medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |