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Engine fault diagnosis method, device, controller and storage medium

A fault diagnosis and engine technology, applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve problems such as low fault detection efficiency and lack of automatic fault diagnosis capabilities, so as to improve fault detection efficiency, ensure accuracy, and improve analysis. The effect of efficiency

Active Publication Date: 2021-11-02
FAW JIEFANG AUTOMOTIVE CO
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Problems solved by technology

However, it requires artificial timing and quantitative execution of maintenance plans, lacks automatic fault diagnosis capabilities, and has the problem of low fault detection efficiency

Method used

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  • Engine fault diagnosis method, device, controller and storage medium
  • Engine fault diagnosis method, device, controller and storage medium
  • Engine fault diagnosis method, device, controller and storage medium

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Embodiment Construction

[0031] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0032] The engine fault diagnosis method provided in the present application is applicable to the application scenario of diagnosing engine faults of vehicles. In the current application scenario, a vehicle 100 , a controller 102 , a plurality of sensors 104 and an engine 106 are provided; wherein, the controller 102 , the sensors 104 and the engine 106 are all components of the vehicle 100 . The controller 102 is respectively connected to each sensor 104 and the engine 106 , and receives operating signals collected by each sensor 104 and generated by the engine 106 under ...

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Abstract

The invention relates to an engine fault diagnosis method, a device, a controller and a storage medium. The method comprises the following steps that operation signals generated by an engine of a vehicle under different operation conditions are acquired; the operation conditions are determined according to the engine rotating speed and the engine torque, and the operation signal represents the real-time operation state of the engine; an input signal of a target analysis model is determined based on the operation signal, and statistical processing is carried out on on the current input signal in an established target data partition through the target analysis model to obtain a corresponding real-time operation analysis value; an actual operation value of the operation signal is acquired, and a deviation between the actual operation value and the real-time operation analysis value is determined; and according to the deviation between the actual operation value and the real-time operation analysis value, engine fault diagnosis is carried out, and a corresponding fault diagnosis result is obtained. By adopting the method, the engine fault detection efficiency can be improved.

Description

technical field [0001] The present application relates to the technical field of vehicle control, in particular to an engine fault diagnosis method, device, controller and storage medium. Background technique [0002] Due to the requirements of energy saving, environmental protection and intelligence in the traditional commercial vehicle power system, the electronic control system of the engine is becoming more and more complicated. From the perspective of development, this change will further increase the workload of electronic control data calibration in the diagnostic part; from the perspective of after-sales service, this change will further increase the difficulty of subsequent maintenance. In the traditional technology, in order to ensure the effective fault diagnosis of the engine, it is mainly to carry out planned maintenance on the engine through post-fault maintenance and according to the running time or mileage of the vehicle. Although, the above method can regul...

Claims

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Application Information

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IPC IPC(8): F02B77/08
CPCF02B77/083
Inventor 张鹏刘丽于凯房丽爽
Owner FAW JIEFANG AUTOMOTIVE CO
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