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Automobile vehicle controller monitoring resetting method and device

A vehicle controller and reset method technology, applied in data reset devices, electrical testing/monitoring, instruments, etc., can solve the problem that the controller is susceptible to interference from other power sources or electromagnetic fields, enters an endless loop, and the controller is prone to failure, etc. question

Active Publication Date: 2009-10-07
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the working conditions of electric vehicles, the work of the controller (VMS) is easily interfered by other power sources or electromagnetic fields, and the controller is prone to malfunction or enter abnormal states such as endless loops

Method used

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  • Automobile vehicle controller monitoring resetting method and device
  • Automobile vehicle controller monitoring resetting method and device
  • Automobile vehicle controller monitoring resetting method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Such as figure 1 As shown, the signal output terminal of the main chip of the vehicle controller is connected to the signal input terminal of the watchdog circuit, and the output terminal of the watchdog reset signal is connected to the main chip of the vehicle controller and the power module of the vehicle controller.

[0014] Such as figure 2 As shown, the structure of the watchdog circuit is that there is a first MOSFET tube trigger module, the signal input terminal of the trigger module is connected to the main chip of the vehicle controller, and the signal output terminal of the trigger module is connected with the first filter module, the first The inverter, the second inverter, the second MOSFET trigger module, the second filter module, the third inverter, and the third MOSFET trigger module are connected in sequence, and the reset signal output terminal of the third MOSFET trigger module is connected to the The main chip of the vehicle controller and the power...

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Abstract

The invention relates to an automobile entire controller monitoring resetting method and device, capable of effectively monitoring the vehicle controller and timely resetting the main chip of the vehicle controller when the fault occurs on the vehicle controller. The monitoring resetting method is characterized in that: the main chip of the vehicle controller periodically sends the pulse signal to a watchdog circuit module, when the fault occurs on the vehicle controller and the main chip does not send the pulse signal to the watchdog circuit module for exceeding one period, the watchdog circuit module generates the resetting signal and the resetting signal is sent to the main chip of the vehicle controller and the vehicle controller power module to force the main chip reset.

Description

technical field [0001] The invention relates to a method and a device for monitoring and resetting an automobile whole vehicle controller. Background technique [0002] In the development of modern electric vehicles, the motor controller (MCU), battery management system (BMS) and vehicle controller (VMS) are the core components of the electric vehicle, and the vehicle controller is equivalent to the brain of the electric vehicle, monitoring the motor The working status of the controller (MCU) and the battery management system (BMS), so the stability of the vehicle controller (VMS) is very important. [0003] The amount of information processing completed by the main chip of the vehicle controller (VMS) is very large, so high requirements are put forward for its stability. Under the working conditions of electric vehicles, the work of the controller (VMS) is easily interfered by other power sources or electromagnetic fields, and the controller is prone to malfunction or ente...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02G06F1/24G06F11/00B60R16/02H03K3/02
Inventor 桂海勇
Owner CHERY AUTOMOBILE CO LTD