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A vehicle motor control system and safety monitoring method

A technology for motor control and safety monitoring, applied in control systems, AC motor control, electrical components, etc., can solve problems such as failures and errors that cannot be monitored, errors in operating results, data changes, etc., to achieve low cost, small system changes, and improved safety effect

Active Publication Date: 2016-02-24
奇瑞新能源汽车股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But these measures are not enough. In some cases, some faults and errors cannot be monitored, such as software running normally, but the operation result is wrong, the data of a storage unit is damaged by external force and changes, etc.

Method used

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  • A vehicle motor control system and safety monitoring method
  • A vehicle motor control system and safety monitoring method
  • A vehicle motor control system and safety monitoring method

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be described in detail below with reference to the drawings.

[0022] Such as figure 1 As shown, the vehicle motor control system consists of three parts: a DC power supply, a motor controller and a motor. The motor controller is the main part of the control system, which mainly includes a master control chip, a slave chip and some commonly used monitoring modules. The monitoring modules mainly include: power supply monitoring, voltage monitoring, current monitoring, temperature monitoring, speed monitoring and external watchdog, etc. These modules are commonly used in motor control systems. The invention adds a slave chip to form a new layer of monitoring system together with the main control chip, and at the same time adds a new monitoring algorithm in the main control process.

[0023] The main flowchart of the safety monitoring method of the vehicle motor control system of the present invention is as follows figure 2 As shown, when the contro...

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PUM

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Abstract

The invention discloses a safety monitoring method of a vehicle motor control system and a system using the method. The safety monitoring method comprises the following steps that 1), all modules of a main control chip are subjected to initialization configuration, 2) all the modules of the main control chip are subjected to self detection, and the self defection comprises testing of an internal storage, an IO module, an AD sampling module, a communication module, a PWM module, and a watchdog module, 3) a system period control task is carried out, and 4) a system period testing task is carried out. According to the safety monitoring method and the system, on the premise of not changing monitoring of hardware and software of an original system, starting self detection of the system and detection and monitoring for the overall operation state in cooperation with a sub chip are added, the purpose of overall system safety can be achieved, the system is slightly changed, cost is low, and safety of system operation can be improved.

Description

Technical field [0001] The invention belongs to the field of automobile safety, and particularly relates to a safety monitoring method of an automobile motor control system. Background technique [0002] As one of the three key directions of modern automobile technology research, automobile safety has received extensive attention all over the world. With the rapid growth of my country's national economy, the continuous improvement of people's living standards and the enhancement of safety awareness, the automobile industry and transportation will continue to develop to a high level, and new requirements for automobile safety will inevitably be put forward. Improving the safety of automobiles can not only reduce casualties and socio-economic losses in various automobile accidents, but also directly affect the stability of the transportation environment and people's lives. As a green and environmentally friendly vehicle in the 21st century, electric vehicles have become inevitable...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P23/00
Inventor 蔡交明王瑛陈立冲王金磊
Owner 奇瑞新能源汽车股份有限公司
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