Fault diagnosis method, device and equipment for electric control clutch of vehicle

A clutch and electronic control technology, applied in the field of vehicles, can solve the problems of inaccurate fault judgment of electronically controlled clutches, etc.

Active Publication Date: 2021-04-02
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology helps diagnose if there are any problems with an electronic control (ECS) clutch used for vehicles that use both fuel injection systems or battery chargers. It uses this data from the ESC controllor while driving through different modes at specific times during each drive cycle. By comparing these two positions, we can determine which mode was best beforehand without having them be wrongly selected because they were caused by manual intervention. Overall, our technical effect will help prevent incorrect determination of failures related to managing hydraulic pressure levels within certain areas such as engines or batteries.

Problems solved by technology

The technical problem addressed in this patented technology relates to accurately detecting if there are failures or errors in electronic-controlled clutches that can result from incorrect measurement data being provided during diagnostics. This results in improper operation for vehicles with these systems due to poor performance caused by incorrect detection.

Method used

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  • Fault diagnosis method, device and equipment for electric control clutch of vehicle
  • Fault diagnosis method, device and equipment for electric control clutch of vehicle
  • Fault diagnosis method, device and equipment for electric control clutch of vehicle

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Embodiment Construction

[0066] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0067] At present, electronically controlled clutches play an important role in vehicles, especially in parallel hybrid vehicles that can rely on both the engine to drive the vehicle and the motor to drive the vehicle. At present, in order to achieve precise control of the electronically controlled clutch, the controller of the hybrid power system mainly controls the electronically controll

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Abstract

The invention provides a fault diagnosis method, device and equipment for an electric control clutch of a vehicle, and the method comprises the steps: obtaining the first position information of the electric control clutch at a current moment after a hybrid power system controller of the vehicle is powered on; and controlling the electric control clutch to be disengaged, obtaining second positioninformation of the electric control clutch after the preset time; if the first position information is the same as the second position information, controlling the motor to drag the engine under the state that the gear of the transmission of the vehicle is empty, and determining the fault type of the electric control clutch according to the state of the engine. By means of the method, the problemsthat misjudgment and inaccurate fault judgment occur in electric control clutch fault diagnosis due to human experience, and then a vehicle cannot run normally can be solved.

Description

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Claims

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Application Information

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Owner WEICHAI POWER CO LTD
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