CN113879124B - Power-off control method, system, vehicle and storage medium - Google Patents
Power-off control method, system, vehicle and storage medium Download PDFInfo
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- CN113879124B CN113879124B CN202111003297.3A CN202111003297A CN113879124B CN 113879124 B CN113879124 B CN 113879124B CN 202111003297 A CN202111003297 A CN 202111003297A CN 113879124 B CN113879124 B CN 113879124B
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- 238000000034 method Methods 0.000 title claims abstract description 62
- 238000004590 computer program Methods 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 14
- 238000005057 refrigeration Methods 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 7
- 230000011664 signaling Effects 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000003111 delayed effect Effects 0.000 description 13
- 239000003990 capacitor Substances 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The application provides a power-off control method, a power-off control system, a vehicle and a storage medium. The method comprises the following steps: receiving a down electric signal of a car key; when a power-off signal of a vehicle key is received, executing a preset power-off program, wherein the time length of the preset power-off program is smaller than the time delay time length of the time delay power-off of the whole vehicle controller, and the preset power-off program comprises: the device comprises a first preset shutdown program and a second preset shutdown program, wherein the number of devices which are included in the first preset shutdown program and shut down according to the correct shutdown program is smaller than that of the second preset shutdown program, and at least one device which is included in the first preset shutdown program and shut down according to the correct shutdown program is provided. The refrigerator set controller is ensured to at least control the individual important equipment to execute a correct shutdown program, the equipment is prevented from being damaged by sudden shutdown, and the service life of the equipment is prolonged.
Description
Technical Field
The present application relates to the field of vehicle electronics, and in particular, to a power outage control method, system, vehicle, and storage medium.
Background
With the development of energy storage battery technology and the strong support of national policy, new energy automobiles are gradually popularized. In the cold chain transportation industry, new energy refrigerated vehicles are in the spotlight. After a person parks a car, the car is usually stopped immediately by directly closing the car key. The whole refrigerating truck with new energy and the matched refrigerating machine set are powered by the high-voltage battery, and the operation habit of many drivers is to cut off the high-voltage power supply of the vehicle by directly turning off the key of the truck, so that the purposes of shutting down the refrigerating machine set and powering off the whole refrigerating machine set are achieved, and the aim of powering off the refrigerating machine set after shutting down is achieved instead of powering off the refrigerating machine set after shutting down the refrigerating machine set. The operation mode makes the load of the refrigerating unit cut off, and can cause serious arc-pulling adhesion phenomenon to the switching device of the high-voltage power supply loop of the refrigerating unit, and the high-voltage switching device can be damaged for a long time. And a large amount of electric energy is stored in a capacitor in a refrigerating unit controller after the key is twisted to be directly powered off, if the electric quantity in the capacitor is not consumed on the horse, the partial loop of the controller can still be electrified after the power is off, and the danger of electric shock is brought to unit maintenance personnel.
Disclosure of Invention
The application mainly aims to provide a power-off control method, a power-off control system, a vehicle and a storage medium, so as to solve the problem that electric equipment is damaged when a refrigerator car is directly powered off.
In a first aspect, the present application provides a power outage control method, applied to a refrigeration unit controller, comprising: receiving a down electric signal of a car key; when a power-off signal of a vehicle key is received, executing a preset power-off program, wherein the time length of the preset power-off program is smaller than the time delay time length of the time delay power-off of the whole vehicle controller, and the preset power-off program comprises: the device comprises a first preset shutdown program and a second preset shutdown program, wherein the number of devices which are included in the first preset shutdown program and shut down according to the correct shutdown program is smaller than that of the second preset shutdown program, and at least one device which is included in the first preset shutdown program and shut down according to the correct shutdown program is provided.
In one embodiment, after the execution of the preset shutdown procedure, the method further comprises: detecting whether a high voltage input exists; when there is no high voltage input, the discharge circuit is controlled to enter a discharge state.
In one embodiment, after controlling the discharge circuit to enter the discharge state, the method further comprises: detecting whether a high voltage input exists; when a high voltage input is detected, the discharge circuit is controlled to stop discharging.
In one embodiment, after the execution of the preset shutdown procedure, the method further comprises: and sending a shutdown completion signal to the whole vehicle controller so as to enable the whole vehicle controller to shut off a high-voltage power supply loop of the refrigerating unit controller.
In a second aspect, the present application provides a power outage control method, applied to a vehicle controller, including: receiving a down electric signal of a car key; and when receiving a power-down signal of the car key, carrying out delayed power-off on the refrigerating unit controller, wherein the delay time of the delayed power-off is longer than the time required by the refrigerating unit controller to execute a preset power-off program, so that the high-voltage power supply loop of the refrigerating unit controller is turned off after the refrigerating unit controller executes the preset power-off program.
In one embodiment, the delayed power down includes: receiving a shutdown completion signal sent by a refrigerating unit controller; and when a shutdown completion signal sent by the refrigerating unit controller is received, the high-voltage power supply loop of the refrigerating unit controller is turned off.
In a third aspect, the present application provides a refrigeration unit controller comprising a processor and a memory having a computer program stored therein which, when executed by the processor, implements the steps of the power down control method as described above.
In a fourth aspect, the present application provides a vehicle controller, including: the communication device is used for receiving a down electric signal of the car key; a controller comprising a memory and a processor, the memory having stored therein a computer program which, when executed by the processor, implements the steps of the power down control method as described above.
In one embodiment, further comprising: the delay power-off device is used for carrying out delay power-off on the refrigerating unit controller and comprises a delay power-off circuit and/or a delay relay; the controller is also used for controlling the delay power-off device to carry out delay power-off on the refrigerating unit controller when the communication device receives a power-off signal of the car key.
In a fifth aspect, the present application provides a power outage control system comprising a refrigeration unit controller as described above and a vehicle controller as described above.
In a sixth aspect, the present application provides a vehicle comprising a power outage control system as described above.
In a seventh aspect, the present application provides a storage medium having stored therein a computer program which, when executed by a processor, implements the steps of the power down control method as described above or the steps of the power down control method as described above.
By adopting the power-off control method, when the refrigerator set controller receives the power-off signal of the car key, the preset power-off program is executed, meanwhile, when the whole car controller receives the power-off signal of the car key, the refrigerator set controller is subjected to delayed power-off, and the delay time length of the delayed power-off is longer than the time length required by the refrigerator set controller to execute the preset power-off program, so that the refrigerator set controller can at least control individual important equipment to execute the correct power-off program, the equipment is prevented from being damaged by sudden power-off, and the service life of the equipment is prolonged.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and without limitation to the application
In the figure:
FIG. 1 is a flowchart of a power down control method according to an exemplary embodiment of the present application;
FIG. 2 is a flowchart of a power down control method according to an exemplary embodiment of the present application;
FIG. 3 is a flow chart of a power down control method according to an embodiment of the application;
fig. 4 is a schematic structural diagram of a power-off control system according to an embodiment of the present application.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
Example 1
The present embodiment provides a power-off control method, which is applied to a refrigerator set controller, and fig. 1 is a flowchart of a power-off control method according to an exemplary embodiment of the present application. As shown in fig. 1, the method of the present embodiment may include:
s100: and receiving a down signal of the car key.
S300: when a power-off signal of a vehicle key is received, executing a preset power-off program, wherein the time length of the preset power-off program is smaller than the time delay time length of the time delay power-off of the whole vehicle controller, and the preset power-off program comprises: the device comprises a first preset shutdown program and a second preset shutdown program, wherein the number of devices which are included in the first preset shutdown program and shut down according to the correct shutdown program is smaller than that of the second preset shutdown program, and at least one device which is included in the first preset shutdown program and shut down according to the correct shutdown program is provided.
For example, the second preset shutdown program may be a normal shutdown program of the refrigeration unit controller, and may control all five devices to shutdown sequentially according to their own correct shutdown program, and correspondingly, the first preset shutdown program may be a simplified shutdown program of the refrigeration unit controller, and may control two important devices of all five devices to shutdown according to their own correct shutdown program. The correct shutdown procedure is an execution procedure for correctly shutting down the device when the device is operated, and may be obtained from a device specification in many cases.
Of course, the preset shutdown program may be configured as needed, and may not be limited to the first preset shutdown program and the second preset shutdown program, but may include preset shutdown programs of more configurations.
By executing the preset shutdown program, at least part of important equipment of the refrigerating unit can be shut down according to the correct shutdown program, and damage to the part of important equipment caused by sudden power failure is reduced.
After the preset shutdown procedure is performed, the method may further include: detecting whether a high voltage input exists; when there is no high voltage input, the discharge circuit is controlled to enter a discharge state. When no high voltage is input, the refrigerating unit is completely powered off, and the starting of the discharging circuit is safe. And, through discharging, the electric charge in the capacitor of the refrigerating unit controller is released, thereby ensuring the safety of maintenance personnel when the equipment is maintained.
After controlling the discharge circuit to enter the discharge state, the method may further include: detecting whether a high voltage input exists; when a high voltage input is detected, the discharge circuit is controlled to stop discharging. When high-voltage input is detected in the discharging process, the discharging circuit is immediately controlled to stop discharging so as not to damage the refrigerating unit controller.
In another example, after the preset shutdown procedure is performed, the method may further include: and sending a shutdown completion signal to the whole vehicle controller so as to enable the whole vehicle controller to shut off a high-voltage power supply loop of the refrigerating unit controller. And sending a shutdown completion signal to the whole vehicle controller, so that the whole vehicle controller timely shuts off a high-voltage power supply loop for the refrigerating unit controller when receiving the shutdown completion signal.
Example two
The embodiment provides a power-off control method, which is applied to a vehicle controller, and fig. 2 is a flowchart of the power-off control method according to an exemplary embodiment of the application. As shown in fig. 2, the method of the present embodiment may include:
s200: and receiving a down signal of the car key.
S400: and when receiving a power-down signal of the car key, carrying out delayed power-off on the refrigerating unit controller, wherein the delay time of the delayed power-off is longer than the time required by the refrigerating unit controller to execute a preset power-off program, so that the high-voltage power supply loop of the refrigerating unit controller is turned off after the refrigerating unit controller executes the preset power-off program.
In one example, the delayed power down may be implemented by a delayed power down circuit or a delayed relay.
In another example, a delayed power down may include: receiving a shutdown completion signal sent by a refrigerating unit controller; and when a shutdown completion signal sent by the refrigerating unit controller is received, the high-voltage power supply loop of the refrigerating unit controller is turned off.
By adopting the power-off control method, when the refrigerator set controller receives the power-off signal of the car key, the preset power-off program is executed, meanwhile, when the whole car controller receives the power-off signal of the car key, the refrigerator set controller is subjected to delayed power-off, and the delay time length of the delayed power-off is longer than the time length required by the refrigerator set controller to execute the preset power-off program, so that the refrigerator set controller can at least control individual important equipment to execute the correct power-off program, the equipment is prevented from being damaged by sudden power-off, and the service life of the equipment is prolonged.
Example III
The present embodiment provides a refrigeration unit controller comprising a processor and a memory having a computer program stored therein which, when executed by the processor, implements the steps of the power down control method as described above.
Example IV
The embodiment provides a vehicle control unit, including: the communication device is used for receiving a down electric signal of the car key; a controller comprising a memory and a processor, the memory having stored therein a computer program which, when executed by the processor, implements the steps of the power down control method as described above.
The whole vehicle controller of the embodiment may further include: the delay power-off device is used for carrying out delay power-off on the refrigerating unit controller and comprises a delay power-off circuit and/or a delay relay; the controller is also used for controlling the delay power-off device to carry out delay power-off on the refrigerating unit controller when the communication device receives a power-off signal of the car key.
Example five
The present embodiment provides a power-off control system including a refrigeration unit controller as described above and a vehicle controller as described above.
Example six
The present embodiment provides a vehicle including the power-off control system as described above.
Example seven
The present embodiment provides a storage medium having a computer program stored therein, which, when executed by a processor, implements the steps of the power-off control method as described above or the steps of the power-off control method as described above.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method or a computer program product. Thus, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations of methods and computer program products according to embodiments of the application. It will be understood that each flow in the flowchart, and combinations of flows in the flowchart, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows.
Storage media, including both permanent and non-permanent, removable and non-removable media, may be implemented in any method or technology for storage of information. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by the computing device.
Example eight
The present embodiment provides an embodiment of a power-off control method, which can be applied to a refrigerator car, fig. 3 is a flowchart of the power-off control method according to an embodiment of the present application, and fig. 4 is a schematic structural diagram of a power-off control system according to an embodiment of the present application.
The power-off control method of the embodiment can improve the reliability of the vehicle and the safety of maintenance operation.
As shown in fig. 3, when the driver stops turning the car key to OFF gear, the refrigerator group controller and the whole car controller simultaneously receive the car key power-OFF signal. The refrigerating unit immediately executes a preset shutdown program, for example, the preset shutdown program may be an emergency shutdown operation, so that loads such as a compressor stop working. Meanwhile, the whole vehicle controller receives the vehicle key power-off signal and then controls the power supply loop of the refrigerating unit to start a time-delay power-off program, and after the time delay time is up, the whole vehicle controller sends out the power-off signal and controls the contacts of the high-voltage switch devices of the high-voltage power supply loop of the whole vehicle supplied to the refrigerating unit to be disconnected. The power-off delay time of the whole vehicle controller is a preset value, and the preset delay time is required to be larger than or equal to the shutdown time of the refrigerating unit for executing a preset shutdown program.
In one example, when the vehicle controller is not provided with a delay power-off circuit of the power supply loop of the refrigerating unit, a delay relay can be arranged to realize delay power-off. The whole car controller receives the car key power-off signal and directly sends a power-off instruction to the high-voltage switching device, the high-voltage switching device is a power-off time-delay relay, and the aspect of the high-voltage time-delay relay selection also needs to meet the condition that the time delay is more than or equal to the time required by the shutdown of the refrigerating unit.
In another example, when the whole vehicle controller is not provided with the delay power-off circuit and the delay relay, communication connection can be established between the refrigerating unit controller and the whole vehicle controller, a shutdown completion signal is sent to the whole vehicle controller after the refrigerating unit controller is shut down, and the whole vehicle controller disconnects a power supply loop of the refrigerating unit after receiving the shutdown completion signal. As shown in fig. 4, since the refrigeration unit controller has a constant-voltage end connected to the low-voltage battery of the vehicle, the refrigeration unit controller may send a shutdown signal to the vehicle controller after the shutdown of the refrigeration unit is completed. And the whole vehicle controller immediately executes the power-off operation of the power supply loop. When the high-voltage power supply loop of the refrigerating unit is powered off, the refrigerating unit controller still has the input of the low-voltage power supply, and the refrigerating unit controller is in a standby state. When the refrigerating unit controller detects that no high-voltage power is input, the discharging circuit is immediately connected, and the electric energy stored in the capacitor of the refrigerating unit controller is consumed through the discharging circuit. The main device of the discharging circuit can be a resistor or a cement resistor with a radiating block, and the resistor is connected with a controllable switch in series and connected with two ends of the capacitor in parallel. In addition, when the discharging circuit is in operation, if the vehicle key is started, the unit is electrified again at high voltage, and the refrigerating unit controller immediately controls the discharging circuit to be disconnected, so that unnecessary electric energy consumption is reduced, and overheating of the discharging circuit resistor is prevented.
By adopting the power-off control method of the embodiment, the problems that the electric equipment is damaged and safety accidents are caused when the vehicle is directly powered off are solved.
The new energy refrigerator car adopts the power-off control method of the application, so that the car orderly executes power-off operation, the loss of electrical equipment in the car is effectively reduced, the service life of the electrical equipment is prolonged, and the maintenance safety of the electrical equipment after power off is improved.
It is noted that the terms used herein are used merely to describe particular embodiments and are not intended to limit exemplary embodiments in accordance with the present application, when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and the claims and drawings of the present application are used for distinguishing between similar objects and not for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.
It should be understood that the exemplary embodiments in this specification may be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art, and should not be construed as limiting the application.
Claims (12)
1. A power-off control method, applied to a refrigeration unit controller, comprising:
receiving a down electric signal of a car key;
when a power-off signal of a vehicle key is received, executing a preset power-off program, wherein the time length of the preset power-off program is smaller than the time delay time length of the time delay power-off of the whole vehicle controller, and the preset power-off program comprises: the system comprises a first preset shutdown program and a second preset shutdown program, wherein the first preset shutdown program comprises fewer equipment which is shut down according to the correct shutdown program than the second preset shutdown program, the second preset shutdown program is a normal shutdown program of a refrigerating unit controller and is used for controlling all the equipment to shut down according to the correct shutdown program, the first preset shutdown program is a simplified shutdown program of the refrigerating unit controller and is used for controlling important equipment to shut down according to the correct shutdown program, the first preset shutdown program comprises at least one equipment which is shut down according to the correct shutdown program, the whole vehicle controller is used for controlling a power supply loop of the refrigerating unit to start a delay power-off program after receiving the power-down signal, and controlling contacts of high-voltage switching devices of a high-voltage power circuit of the whole vehicle power supply refrigerating unit to be disconnected after the delay time is up, and the delay time is a preset value.
2. The power-off control method according to claim 1, wherein after the execution of the preset shutdown program, the method further comprises:
detecting whether a high voltage input exists;
when there is no high voltage input, the discharge circuit is controlled to enter a discharge state.
3. The power-off control method according to claim 2, characterized in that after controlling the discharge circuit to enter the discharge state, the method further comprises:
detecting whether a high voltage input exists;
when a high voltage input is detected, the discharge circuit is controlled to stop discharging.
4. The power-off control method according to claim 1, wherein after the execution of the preset shutdown program, the method further comprises:
and sending a shutdown completion signal to the whole vehicle controller so as to enable the whole vehicle controller to shut off a high-voltage power supply loop of the refrigerating unit controller.
5. The power-off control method is characterized by being applied to a whole vehicle controller and comprising the following steps of:
receiving a down electric signal of a car key;
when a power-down signal of a car key is received, a delay power-off program is controlled to be started by a power supply loop of the refrigerating unit, and the delay power-off is performed on the refrigerating unit controller, wherein the delay time of the delay power-off is longer than the time required by the refrigerating unit controller to execute a preset power-off program, so that the high-voltage power supply loop of the refrigerating unit controller is turned off after the refrigerating unit controller executes the preset power-off program, the delay time is a preset value, and the refrigerating unit controller is used for executing the preset power-off program when the power-down signal of the car key is received, wherein the preset power-off program comprises: the system comprises a first preset shutdown program and a second preset shutdown program, wherein the number of equipment which is included in the first preset shutdown program and is shutdown according to the correct shutdown program is smaller than that of the second preset shutdown program, the second preset shutdown program is a normal shutdown program of a refrigerating unit controller and is used for controlling all the equipment to be shutdown according to the correct shutdown program in turn, the first preset shutdown program is a simplified shutdown program of the refrigerating unit controller and is used for controlling important equipment to be shutdown according to the correct shutdown program, and the number of equipment which is included in the first preset shutdown program and is shutdown according to the correct shutdown program is at least one;
and after the time delay time is up, controlling the contacts of the high-voltage switching devices of the high-voltage power circuit of the whole vehicle supply refrigerating unit to be disconnected.
6. The power-down control method of claim 5, wherein the time-lapse power-down comprises:
receiving a shutdown completion signal sent by a refrigerating unit controller;
and when a shutdown completion signal sent by the refrigerating unit controller is received, the high-voltage power supply loop of the refrigerating unit controller is turned off.
7. A refrigeration unit controller comprising a processor and a memory having a computer program stored therein which, when executed by the processor, implements the steps of the power down control method of any one of claims 1 to 4.
8. An overall vehicle controller, comprising:
the communication device is used for receiving a down electric signal of the car key;
a controller comprising a memory and a processor, the memory having stored therein a computer program which, when executed by the processor, implements the steps of the power down control method as claimed in claim 5 or 6.
9. The vehicle controller of claim 8, further comprising:
the delay power-off device is used for carrying out delay power-off on the refrigerating unit controller and comprises a delay power-off circuit and/or a delay relay;
the controller is also used for controlling the delay power-off device to carry out delay power-off on the refrigerating unit controller when the communication device receives a power-off signal of the car key.
10. A power-off control system comprising a refrigeration unit controller according to claim 7 and a vehicle controller according to claim 8 or 9.
11. A vehicle comprising the power outage control system according to claim 10.
12. A storage medium having a computer program stored therein, which, when executed by a processor, implements the steps of the power-off control method according to any one of claims 1 to 4 or the steps of the power-off control method according to claim 5 or 6.
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| CN202111003297.3A CN113879124B (en) | 2021-08-30 | 2021-08-30 | Power-off control method, system, vehicle and storage medium |
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| CN202111003297.3A CN113879124B (en) | 2021-08-30 | 2021-08-30 | Power-off control method, system, vehicle and storage medium |
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| KR102325341B1 (en) * | 2015-07-17 | 2021-11-11 | 삼성전자주식회사 | Image display apparatus and method for the same |
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