CN210428191U - Loader intelligent power distribution control system - Google Patents
Loader intelligent power distribution control system Download PDFInfo
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- CN210428191U CN210428191U CN201921814774.2U CN201921814774U CN210428191U CN 210428191 U CN210428191 U CN 210428191U CN 201921814774 U CN201921814774 U CN 201921814774U CN 210428191 U CN210428191 U CN 210428191U
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Abstract
The utility model discloses a loader intelligence power distribution control system. The transmission CTU, the hydraulic system HCU and the engine ECU are connected with the power distribution controller and carry out controllable signal interaction with the power distribution controller; the electronic accelerator pedal outputs a control signal to the power distribution controller so as to control the rotating speed of the engine; the brake pedal pressure sensor outputs a detected pressure signal to the power distribution controller; the movable arm handle outputs a control signal to the power distribution controller, and then the lifting of the movable arm is controlled through the hydraulic system HCU; the bucket handle outputs a control signal to the power distribution controller, and then the hydraulic system HCU controls the bucket to extend and retract. The utility model can make the power distribution of the engine more perfect, and realize 5% -10% of energy conservation and emission reduction; the labor intensity of a driver can be reduced, the operation comfort is improved, the working efficiency is improved, the intelligence of the loader is improved, and a foundation is laid for the artificial intelligence control technology of the loader.
Description
Technical Field
The utility model relates to a loader intelligent power distribution control system and method belongs to engineering machine tool intelligent control technical field.
Background
At present, a loader is widely applied to agricultural production and industrial construction in the world, and is one of indispensable special engineering machines, so that the requirement on a control system is higher and higher.
Conventional loaders are less concerned with power distribution on the basis of satisfying the use function, such as: for the shovel loading of materials with different densities, no relevant energy-saving measures are provided, so that the power loss is serious and the energy consumption is overhigh; the idling speed management system is not arranged, the idling speed is 800rpm, and the idling oil consumption is higher; aiming at the working conditions of ice and snow and muddy road, no tyre antiskid measure is provided, and the service life of the tyre is greatly shortened; when the shovel loader works, a driver needs to trigger a KD gear, so that the fatigue feeling of the driver is improved, and the fuel consumption is high due to manual operation.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides a loader intelligent power distribution control system and method.
The utility model adopts the technical proposal that: a loader intelligent power distribution control system comprising:
a power distribution controller;
the transmission case CTU is connected with the power distribution controller and carries out controllable signal interaction with the power distribution controller;
the hydraulic system HCU is connected with the power distribution controller and carries out controllable signal interaction with the power distribution controller;
the engine ECU is connected with the power distribution controller and performs controllable signal interaction with the power distribution controller;
the electronic accelerator pedal outputs a control signal to the power distribution controller and transmits the control signal to the engine ECU through the power distribution controller to control the rotating speed of the engine;
a brake pedal pressure sensor for detecting a pressure of the brake system and outputting a detected pressure signal to the power distribution controller;
the movable arm handle outputs a control signal to the power distribution controller and transmits the control signal to the hydraulic system HCU through the power distribution controller to control the lifting of the movable arm;
the bucket handle outputs a control signal to the power distribution controller and transmits the control signal to the hydraulic system HCU through the power distribution controller to control the bucket to extend and retract;
and the working pump pressure sensor detects the pressure of the working pump and outputs a detected pressure signal to the power distribution controller.
It further comprises the following steps: the power distribution controller is also connected with a gearbox manual-automatic change-over switch, a gearbox 4-gear switch, a gearbox 3-gear switch, a gearbox 2-gear switch and a gearbox 1-gear switch which are used for controlling the gearbox CTU.
The power distribution controller is also connected with a rain and snow mode switch, a constant speed accelerator switch, a power mode switch, a KD gear switch and a parking brake switch.
The model of the power distribution controller is XCMG 50-12; the CTU model of the gearbox is XCMG-TCU-01; the model of the hydraulic system HCU is XCMG-HCU-01; the engine ECU model is XCMG-ECU-01.
The power distribution controller is configured to control the power distribution,
the BAT + end is connected with the positive electrode of the storage battery through a wire, and the BAT-end is connected with the negative electrode of the storage battery through a wire;
the CAN _ H end is respectively connected with the CTU of the gearbox, the HCU of the hydraulic system and the CAN _ H end of the ECU of the engine by shielded wires;
the CAN _ L end is respectively connected with the CTU of the gearbox, the HCU of the hydraulic system and the CAN _ L end of the ECU of the engine by shielded wires;
the DI0 end is connected with a wire for a 1-gear switch of the gearbox;
the DI1 end is connected with a wire for a 2-gear switch of the gearbox;
the 5V + end is respectively connected with the C end and the D end of the electronic accelerator pedal, the V + end of the brake pedal pressure sensor and the V + end of the working pump pressure sensor through leads;
the AGND end is respectively connected with the A end and the F end of an electronic accelerator pedal, the V-end of a brake pedal pressure sensor and the V-end of a working pump pressure sensor through leads;
the DI2 end is connected with a wire for a 3-gear switch of the gearbox;
the DI3 end is connected with a wire for a 4-gear switch of the gearbox;
the DI4 end is connected with a lead for a manual and automatic change-over switch of the gearbox;
the DI5 end is connected with a lead wire for a parking brake switch;
the DI6 end is connected with the KD-grade switch by a lead;
the AI1 end and the AI2 end are connected with the B end and the E end of the electronic accelerator pedal by leads;
the AI3 end is connected with the A end of the brake pedal pressure sensor by a lead;
the AI4 end is connected with the B end of the movable arm handle by a lead;
the AI5 is connected with the B end of the bucket handle by a lead;
the AI6 is connected with the A end of the working pump pressure sensor by a lead;
DI7 is connected to the power mode switch conductor;
the DI8 is connected with the constant speed accelerator switch by a lead;
DI9 is connected with the guide for the rain and snow mode switch;
the DO1 end is connected with the A end of the transmission case CTU through a lead;
the DO2 end is connected with the B end of the transmission case CTU by a lead;
the DO3 end is connected with the C end of the transmission case CTU through a lead;
the DO4 end is connected with the D end of the transmission case CTU through a lead;
the DO5 end is connected with the E end of the transmission case CTU by a lead;
the DO6 end is connected with the F end of the transmission case CTU through a lead;
DO7 is connected with the A end of the hydraulic system HCU through a lead;
DO8 is connected with the B end of the hydraulic system HCU through a lead;
DO9 is connected with the A end of the engine ECU by a lead;
DO10 is wired to the B terminal of the engine ECU.
A loader intelligent power distribution control method adopts a loader intelligent power distribution control system, and comprises the following steps:
the control of the idle speed is carried out,
whether the vehicle is in a static state or not is checked, and whether an electronic accelerator pedal, a brake pedal pressure sensor, a movable arm handle, a bucket handle and a working pump pressure sensor are in a default state or not is checked;
if the conditions are met, reducing the idling speed to 650 rpm;
if the conditions are not met, the normal idling speed is recovered to 800 rpm;
the control of the falling-off speed is prevented,
if the transmission and the hydraulic system can not be met under the largest throttle, the transmission is preferentially met, and the signals of a movable arm handle and a bucket handle are actively reduced to 50% at the lowest;
automatically enhancing throttle signal if handle and bucket handle signal changes are accelerated'
When the rotating speed of the engine is lower than 1000rpm, enhancing an accelerator signal according to a signal of a working pump pressure sensor;
the automatic KD gear control is carried out,
and activating a KD gear switch, identifying the shoveling working condition according to the signal by the program, selecting the optimal gear shifting point according to the gear power curve, and automatically executing.
Preferably: the intelligent power distribution control method for the loader further comprises the following steps:
the control of the constant rotating speed is carried out,
activating a constant-speed accelerator switch, storing the current engine rotating speed and an accelerator signal, adjusting the accelerator signal by a closed-loop controller, compensating the rotating speed change caused by load change, and keeping the rotating speed constant;
when the brake and the throttle signal higher than the set value are adopted, the constant rotating speed is controlled to be closed;
the anti-skid control is carried out by the anti-skid control,
activating a switch in a rain and snow mode, setting a maximum torque value signal through a potentiometer, and calculating the torque of the tire through a gear and the torque of the torque converter;
if the set value is exceeded, reducing the torque by reducing the throttle signal;
the control of the ECO mode is carried out,
limiting the throttle signal in an optimal working area;
and a first-order low-pass filter is applied to the accelerator pedal value to smooth the signal and reduce the peak value of oil consumption.
After the system is started, self-checking is firstly carried out, and the system automatically finishes control functions such as idle speed management, speed drop prevention, automatic KD gear, constant rotating speed, skid prevention, ECO function and the like by pressing a power mode switch. The power distribution of the engine is optimized, and the intelligent operation of power matching is completed.
Compared with the prior art, the beneficial effects of the utility model are that: the power distribution of the engine can be more perfect, and the energy conservation and emission reduction is realized by 5% -10%; the labor intensity of a driver can be reduced, the operation comfort is improved, the working efficiency is improved, the intelligence of the loader is improved, and a foundation is laid for the artificial intelligence control technology of the loader.
Drawings
Fig. 1 is a circuit diagram of an embodiment of the present invention;
in the figure: the system comprises a storage battery 1, an electronic accelerator pedal 2, a brake pedal pressure sensor 3, a movable arm handle 4, a bucket handle 5, a working pump pressure sensor 6, a transmission case 7 CTU, a hydraulic system HCU8, an engine ECU9, a snow and rain mode switch 10, a constant speed accelerator switch 11, a power mode switch 12, a gear shift switch 13KD, a parking brake switch 14, a transmission case manual-automatic change-over switch 15, a transmission case 4-shift switch 16, a transmission case 3-shift switch 17, a transmission case 2-shift switch 18, a transmission case 1-shift switch 19 and a power distribution controller 20.
Detailed Description
The following is a specific embodiment of the present invention, which will be further described with reference to the accompanying drawings.
Example one
Referring to fig. 1, an intelligent power distribution control system for a loader includes:
a power distribution controller 20;
a transmission case CTU7 connected to the power distribution controller 20 and interacting with the power distribution controller 20 in controllable signals;
the hydraulic system HCU8 is connected with the power distribution controller 20 and carries out controllable signal interaction with the power distribution controller 20;
an engine ECU9 connected to the power distribution controller 20 and performing controllable signal interaction with the power distribution controller 20;
an electronic accelerator pedal 2 that outputs a control signal to the power distribution controller 20 and transmits the control signal to the engine ECU9 through the power distribution controller 20 to control the rotational speed of the engine; and participate in power allocation control;
a brake pedal pressure sensor 3 that detects a pressure of the brake system and outputs a detected pressure signal to the power distribution controller 20; and participate in power allocation control;
a boom handle 4 outputting a control signal to the power distribution controller 20 and transmitting the control signal to the hydraulic system HCU8 through the power distribution controller 20 to control the lifting of the boom; and participate in power allocation control;
the bucket handle 5 outputs a control signal to the power distribution controller 20 and transmits the control signal to the hydraulic system HCU8 through the power distribution controller 20 to control the expansion and contraction of the bucket; and participate in power allocation control;
a working pump pressure sensor 6 for detecting the pressure of the working pump and outputting a detected pressure signal to the power distribution controller 20; and participate in power allocation control;
a gearbox manual-automatic change-over switch 15, a gearbox 4-gear switch 16, a gearbox 3-gear switch 17, a gearbox 2-gear switch 18 and a gearbox 1-gear switch 19 output control signals to a power distribution controller 20 and transmit the control signals to a gearbox CTU7 through the power distribution controller 20; and participate in power allocation control.
The power distribution controller 20 is further connected with a rain and snow mode switch 10, a constant speed accelerator switch 11, a power mode switch 12, a KD gear switch 13 and a parking brake switch 14.
In this embodiment, the power distribution controller 20 has a model number XCMG 50-12; the model of the transmission case CTU7 is XCMG-TCU-01; the model of the hydraulic system HCU8 is XCMG-HCU-01; the engine ECU9 is XCMG-ECU-01; specifically, the method comprises the following steps:
of the power distribution controller 20, the power distribution controller,
the BAT + end is connected with the positive electrode of the storage battery 1 through a lead, and the BAT-end is connected with the negative electrode of the storage battery 1 through a lead;
the CAN _ H end is respectively connected with the CAN _ H ends of the transmission CTU7, the hydraulic system HCU8 and the engine ECU9 by shielded wires;
the CAN _ L end is respectively connected with the CAN _ L ends of the transmission CTU7, the hydraulic system HCU8 and the engine ECU9 by shielded wires;
the DI0 end is connected with the 1 st gear switch 19 of the gearbox by a lead;
the DI1 end is connected with the 2-gear switch 18 of the gearbox by a lead;
the 5V + end is respectively connected with the C end and the D end of the electronic accelerator pedal 2, the V + end of the brake pedal pressure sensor 3 and the V + end of the working pump pressure sensor 6 through leads;
the AGND end is respectively connected with the A end and the F end of the electronic accelerator pedal 2, the V-end of the brake pedal pressure sensor 3 and the V-end of the working pump pressure sensor 6 by leads;
the DI2 end is connected with a 3-gear switch 17 of the gearbox by a lead;
the DI3 end is connected with the 4-gear switch 16 of the gearbox by a lead;
the DI4 end is connected with the manual-automatic change-over switch 15 of the gearbox by a lead;
the DI5 terminal is connected with the parking brake switch 14 by a lead wire;
the DI6 end is connected with a KD level switch 13 by a lead;
the AI1 end and the AI2 end are connected with the B end and the E end of the electronic accelerator pedal 2 by leads;
the AI3 end is connected with the A end of the brake pedal pressure sensor 3 by a lead;
the AI4 end is connected with the B end of the movable arm handle 4 by a lead;
the AI5 is connected with the B end of the bucket handle 5 by a lead;
the AI6 is connected with the A end of the working pump pressure sensor 6 by a lead;
DI7 is wired to power mode switch 12;
the DI8 is connected with the constant-speed throttle switch 11 by a lead;
DI9 is connected to the rain and snow mode switch 10 with a guide;
the DO1 end is connected with the A end of the transmission case CTU7 by a lead;
the DO2 end is connected with the B end of the transmission case CTU7 by a lead;
the DO3 end is connected with the C end of the transmission case CTU7 by a lead;
the DO4 end is connected with the D end of the transmission case CTU7 by a lead;
the DO5 end is connected with the E end of the transmission case CTU7 by a lead;
the DO6 end is connected with the F end of the transmission case CTU7 by a lead;
the DO7 is connected with the A end of the HCU8 of the hydraulic system through a lead;
the DO8 is connected with the B end of the HCU8 of the hydraulic system through a lead;
DO9 is wired to terminal A of engine ECU 9;
DO10 is wired to terminal B of engine ECU 9.
Example two
A loader intelligent power distribution control method adopts a loader intelligent power distribution control system in an embodiment. The transmission CTU, the hydraulic system HCU and the engine ECU are three major subsystem control cores, and are in a controllable signal interaction mode with the power distribution controller, so that an accelerator pedal signal, an operating handle signal and a gear signal are collected, the working state of each subsystem is monitored in real time, and a high-level control strategy is applied to control and adjust power matching parameters through CANBUS communication. The method specifically comprises the following steps:
the control of the idle speed is carried out,
whether the vehicle is in a static state or not is checked, and whether the electronic accelerator pedal 2, the brake pedal pressure sensor 3, the movable arm handle 4, the bucket handle 5 and the working pump pressure sensor 6 are in a default state or not is checked;
if the conditions are met, reducing the idling speed to 650 rpm;
if the conditions are not met, the normal idling speed is recovered to 800 rpm;
the control of the falling-off speed is prevented,
if the transmission and the hydraulic system can not be met under the maximum throttle, the transmission is preferentially met, and signals of the movable arm handle 4 and the bucket handle 5 are actively reduced to 50% at the lowest;
throttle signal is automatically enhanced 'if the handle 4 and bucket handle 5 signal changes more rapidly'
When the rotating speed of the engine is lower than 1000rpm, enhancing an accelerator signal according to a signal of a working pump pressure sensor 6;
the automatic KD gear control is carried out,
and activating a KD gear switch 13, identifying the shoveling working condition according to the signal by the program, selecting an optimal gear shifting point according to a gear power curve and automatically executing the optimal gear shifting point.
The control of the constant rotating speed is carried out,
activating a constant-speed accelerator switch 11, storing the current engine rotating speed and an accelerator signal, adjusting the accelerator signal by a closed-loop controller, compensating the rotating speed change caused by load change, and keeping the rotating speed constant;
when the brake and the throttle signal higher than the set value are adopted, the constant rotating speed is controlled to be closed;
the anti-skid control is carried out by the anti-skid control,
activating a rain and snow mode switch 10, setting a maximum torque value signal through a potentiometer, and calculating the tire torque through a gear and the torque converter torque;
if the set value is exceeded, reducing the torque by reducing the throttle signal;
the control of the ECO mode is carried out,
limiting the throttle signal in an optimal working area;
and a first-order low-pass filter is applied to the accelerator pedal value to smooth the signal and reduce the peak value of oil consumption.
The above description is only a preferred embodiment of the present invention, and meanwhile, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A loader intelligent power distribution control system, comprising:
a power distribution controller (20);
the transmission case CTU (7) is connected with the power distribution controller (20) and carries out controllable signal interaction with the power distribution controller (20);
the hydraulic system HCU (8) is connected with the power distribution controller (20) and carries out controllable signal interaction with the power distribution controller (20);
the engine ECU (9) is connected with the power distribution controller (20) and carries out controllable signal interaction with the power distribution controller (20);
the electronic accelerator pedal (2) outputs a control signal to the power distribution controller (20) and transmits the control signal to the engine ECU (9) through the power distribution controller (20) to control the rotating speed of the engine;
a brake pedal pressure sensor (3) that detects the pressure of the brake system and outputs a detected pressure signal to the power distribution controller (20);
the movable arm handle (4) outputs a control signal to the power distribution controller (20) and transmits the control signal to the hydraulic system HCU (8) through the power distribution controller (20) to control the lifting of the movable arm;
the bucket handle (5) outputs a control signal to the power distribution controller (20) and transmits the control signal to the hydraulic system HCU (8) through the power distribution controller (20) to control the bucket to extend and retract;
and a working pump pressure sensor (6) which detects the pressure of the working pump and outputs a detected pressure signal to the power distribution controller (20).
2. The intelligent power distribution control system of a loader of claim 1, characterized in that: the power distribution controller (20) is also connected with a gearbox manual-automatic change-over switch (15), a gearbox 4-gear switch (16), a gearbox 3-gear switch (17), a gearbox 2-gear switch (18) and a gearbox 1-gear switch (19) which are used for controlling the gearbox CTU (7).
3. The intelligent power distribution control system of a loader of claim 2, characterized in that: the power distribution controller (20) is further connected with a rain and snow mode switch (10), a constant speed accelerator switch (11), a power mode switch (12), a KD gear switch (13) and a parking brake switch (14).
4. The intelligent power distribution control system of a loader of claim 3, characterized in that: the model of the power distribution controller (20) is XCMG 50-12; the type of the transmission case CTU (7) is XCMG-TCU-01; the type of the hydraulic system HCU (8) is XCMG-HCU-01; the engine ECU (9) is XCMG-ECU-01.
5. The intelligent power distribution control system of a loader of claim 4, wherein: of the power distribution controller (20),
the BAT + end is connected with the positive electrode of the storage battery (1) through a lead, and the BAT-end is connected with the negative electrode of the storage battery (1) through a lead;
the CAN _ H end is respectively connected with the CAN _ H ends of the transmission CTU (7), the hydraulic system HCU (8) and the engine ECU (9) by shielded wires;
the CAN _ L end is respectively connected with the CAN _ L ends of the transmission CTU (7), the hydraulic system HCU (8) and the engine ECU (9) by shielded wires;
the DI0 end is connected with a 1-gear switch (19) of the gearbox by a lead;
the DI1 end is connected with a 2-gear switch (18) of the gearbox by a lead;
the 5V + end is respectively connected with the C end and the D end of the electronic accelerator pedal (2), the V + end of the brake pedal pressure sensor (3) and the V + end of the working pump pressure sensor (6) through leads;
the AGND end is respectively connected with the A end and the F end of the electronic accelerator pedal (2), the V-end of the brake pedal pressure sensor (3) and the V-end of the working pump pressure sensor (6) through leads;
the DI2 end is connected with a 3-gear switch (17) of the gearbox by a lead;
the DI3 end is connected with a 4-gear switch (16) of the gearbox by a lead;
the DI4 end is connected with a manual and automatic change-over switch (15) of the gearbox by a lead;
the DI5 end is connected with a parking brake switch (14) by a lead;
the DI6 end is connected with a KD gear switch (13) by a lead;
the AI1 end and the AI2 end are connected with the B end and the E end of the electronic accelerator pedal (2) by leads;
the AI3 end is connected with the A end of the brake pedal pressure sensor (3) by a lead;
the AI4 end is connected with the B end of the movable arm handle (4) by a lead;
the AI5 is connected with the end B of the bucket handle (5) by a lead;
the AI6 is connected with the A end of the working pump pressure sensor (6) by a lead;
DI7 is wired to the power mode switch (12);
the DI8 is connected with a constant speed throttle switch (11) by a lead;
DI9 is connected with the rain/snow mode switch (10) by a guide;
the DO1 end is connected with the A end of the transmission case CTU (7) by a lead;
the DO2 end is connected with the B end of the transmission case CTU (7) by a lead;
the DO3 end is connected with the C end of the transmission case CTU (7) by a lead;
the DO4 end is connected with the D end of the transmission case CTU (7) by a lead;
the DO5 end is connected with the E end of the transmission case CTU (7) by a lead;
the DO6 end is connected with the F end of the transmission case CTU (7) by a lead;
DO7 is connected with the A end of the hydraulic system HCU (8) by a lead;
DO8 is connected with the B end of the hydraulic system HCU (8) by a lead;
DO9 is connected with the A end of an engine ECU (9) by a lead;
DO10 is wired to the B terminal of the engine ECU (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921814774.2U CN210428191U (en) | 2019-10-28 | 2019-10-28 | Loader intelligent power distribution control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921814774.2U CN210428191U (en) | 2019-10-28 | 2019-10-28 | Loader intelligent power distribution control system |
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| Publication Number | Publication Date |
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| CN210428191U true CN210428191U (en) | 2020-04-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110703737A (en) * | 2019-10-28 | 2020-01-17 | 徐工集团工程机械股份有限公司科技分公司 | Intelligent power distribution control system and method for loader |
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2019
- 2019-10-28 CN CN201921814774.2U patent/CN210428191U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110703737A (en) * | 2019-10-28 | 2020-01-17 | 徐工集团工程机械股份有限公司科技分公司 | Intelligent power distribution control system and method for loader |
| CN110703737B (en) * | 2019-10-28 | 2024-10-29 | 徐工集团工程机械股份有限公司科技分公司 | Intelligent power distribution control system and method for loader |
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