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A control method, device, controller and system for fault diagnosis

A technology of fault diagnosis and control method, which is applied in the field of devices, controllers and systems, and control method of fault diagnosis, which can solve problems such as spending a lot of time on false alarm fault troubleshooting, save troubleshooting time, avoid fault false alarm, and improve efficiency effect

Active Publication Date: 2020-09-08
BEIJING ELECTRIC VEHICLE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the embodiments of the present invention is to provide a control method, device, controller and system for fault diagnosis, so as to solve the problem of spending a lot of time troubleshooting false alarm faults in the prior art when writing software for each vehicle component The problem

Method used

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  • A control method, device, controller and system for fault diagnosis
  • A control method, device, controller and system for fault diagnosis

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Embodiment Construction

[0037] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0038] The embodiment of the present invention aims at the phenomenon that in the prior art, when the software is written for each vehicle component loaded in the electric vehicle, a fault is falsely reported, and a control method for fault diagnosis is provided, which avoids the failure to False reporting of faults occurs during the process, which saves unnecessary troubleshooting time and improves the efficiency of flashing software.

[0039] like figure 1 As shown, the embodiment of the present invention provides a control method for fault diagnosis, including:

[0040] Step 11, obtaining the control instruction sent by the host computer for fault detection of vehicle components;

[0041] Step 12, according to the control instruction, control whethe...

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Abstract

The invention provides a fault diagnosis control method, a fault diagnosis control device, a controller and a system, and relates to the technical field of motor control. The method includes the steps: acquiring a control command for fault detection of complete vehicle parts; controlling whether to stop fault diagnosis and detection for the complete vehicle parts or not according to the control command. The control command is transmitted by an upper computer. False alarm of faults in the software flash writing process of the complete vehicle parts is avoided, unnecessary troubleshooting time is saved, and working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of motor control, and in particular relates to a control method, device, controller and system for fault diagnosis. Background technique [0002] After the vehicle components of the electric vehicle are loaded into the vehicle and connected to the vehicle Controller Area Network (CAN) bus, it is necessary for the host computer to write software for each component through the CAN bus. In the technology, in the process of flashing the software, the fault diagnosis module of the motor controller will still diagnose the faults of each vehicle component, and there will be false alarms, resulting in a lot of time spent on troubleshooting, reducing the loading efficiency and Increased assembly cost. Contents of the invention [0003] The purpose of the embodiments of the present invention is to provide a control method, device, controller and system for fault diagnosis, so as to solve the problem of spending a l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
CPCG05B23/0213
Inventor 战平代康伟刘超罗曼
Owner BEIJING ELECTRIC VEHICLE
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