A vehicle body controller and its power-off emergency processing method
A vehicle body controller and emergency treatment technology, which is applied in the general control system, control/regulation system, test/monitoring control system, etc., can solve the problems of reduced vibration reliability, large PCB size, and high cost of the body controller, achieving reduction Effects of small capacity, downsizing, and improved vibration reliability
Active Publication Date: 2020-08-21
CONTINENTAL AUTOMOTIVE (CHANGCHUN) CO LTD
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Problems solved by technology
[0018] Therefore, the large-capacity energy storage capacitor brings high cost and large PCB size to the body controller, and at the same time, the problem of reduced vibration reliability due to the large PCB size
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Embodiment Construction
[0045] Such as figure 2 As shown, the vehicle body controller of an embodiment of the present invention includes a housing and a PCB board arranged in the housing. The PCB board includes a processor and an energy storage capacitor. The energy storage capacitor is used to provide a backup power supply for the vehicle body controller. The controller also includes a power-off detection module connected to the processor to detect whether the external power supply is powered off. After the processor detects a power-off through the power-off detection module, it enters the first power-saving mode. The first power-saving mode includes: The processor enters stop mode from operational mode.
[0046] The first power saving mode includes: the processor enters the stop mode from the operation mode. Changing the working mode of the processor will greatly reduce the power consumption, thereby reducing the current that needs to be provided by the backup power supply, thereby reducing the c...
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The invention provides a body controller, which includes a casing and a PCB board arranged in the casing, the PCB board includes a processor and an energy storage capacitor, the energy storage capacitor is used to provide backup power for the body controller, and the body controller also includes and A power-off detection module connected to the processor, after the processor detects a power-off through the power-off detection module, it enters a first power saving mode, and the first power saving mode includes: the processor enters a stop mode from an operation mode. The invention also provides a method for emergency treatment of power failure of the vehicle body controller. The vehicle body controller and its power failure emergency treatment method provided by the present invention greatly reduce the current required to be provided by the backup power supply by changing the working mode of the processor and the CAN bus module, thereby reducing the capacity of the energy storage capacitor, and not only reducing the vehicle body The cost of the controller can be reduced, the size of the body controller can be reduced, and the vibration reliability can be improved. Once an accident occurs, the accident-related information can be sent in time, so that the drivers and passengers can be rescued in time.
Description
technical field [0001] The invention relates to the field of automotive electronics, in particular to a vehicle body controller and a power-off emergency treatment method thereof. Background technique [0002] At present, passive safety devices such as airbags have been installed for the car itself to provide higher safety guarantees for drivers and passengers in the event of a car collision. [0003] However, when a serious accident occurs in the car, there will be a burst of oil leakage, causing the explosion to cause casualties; in addition, after the car body is severely collided, the car door will be deformed due to the huge impact force, so that the occupants in the car cannot get out voluntarily. If they are in a coma, will cause more damage. [0004] During the accident, the passive safety device in the car has been activated, but the relevant information about the accident has not been sent out. If there are no passing pedestrians or vehicles at the place where the...
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IPC IPC(8): G05B23/02
CPCG05B23/0235
Inventor 俞若晨
Owner CONTINENTAL AUTOMOTIVE (CHANGCHUN) CO LTD