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Judgment method and equipment for throttle opening failure

A throttle and fault technology, applied in the field of vehicles, can solve the problems of engine performance impact, failure to determine the throttle opening in time, etc., and achieve the effect of avoiding the impact

Active Publication Date: 2020-03-10
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a method and equipment for judging the throttle opening fault, so as to solve the problem that the throttle opening fault cannot be determined in time in the prior art, which affects the performance of the engine

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  • Judgment method and equipment for throttle opening failure
  • Judgment method and equipment for throttle opening failure
  • Judgment method and equipment for throttle opening failure

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Embodiment Construction

[0050] In order to make the purpose, technical solutions and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be described clearly and completely in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all the embodiments. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of this application.

[0051] Throttle is a controllable valve that controls the air entering the engine. Its main function is to control the flow rate of air or mixture into the engine, thereby affecting the relevant performance indicators of the engine.

[0052] In the existing throttle valve, the position sensor can convert the collected throttle opening into an electric signal, and the ECU obta...

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Abstract

The embodiment of the invention provides a judgement method and equipment for a throttle opening degree fault. The method comprises the following steps of when a target engine is in an idling no-loadstate, acquiring a temperature and the throttle opening degree of a target engine; judging whether an opening degree difference value between the throttle opening degree and a target throttle openingdegree is lower than a first preset threshold value or not according to the throttle opening degree of the target engine and the target throttle opening degree corresponding to the temperature of thetarget engine; and if the opening degree difference value is lower than the first preset threshold value, according to an idling rotating speed of the target engine and a target idling rotating speedcorresponding to the target engine, judging whether an incredible opening degree fault of a throttle of the target engine occurs or not, and timely discovering the incredible opening degree fault of the throttle so as to facilitate that related personnel can perform maintenance, treatment and the like as quickly as possible and avoid the influence caused by the incredible opening degree of the throttle of the engine.

Description

Technical field [0001] The embodiments of the present application relate to the field of vehicle technology, and in particular, to a method and equipment for determining a throttle opening failure. Background technique [0002] With the continuous economic development, vehicles have become an important means of transportation for people to travel. As the energy conversion device of the vehicle, the engine provides power for the vehicle. Among them, the throttle is a controllable valve that controls the air entering the engine, and its main function is to control the flow rate of air or mixed air into the engine, thereby affecting the relevant performance indicators of the engine. [0003] In the existing throttle valve, the position sensor can convert the collected throttle valve opening into an electrical signal. The electronic control unit (ECU) obtains the electrical signal and converts the throttle valve opening into the actual valve opening. Degree to control the flow of air...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D11/10F02D41/22F02B77/08
CPCF02B77/082F02D11/10F02D41/22F02D2200/021F02D2200/0404Y02T10/40
Inventor 曹石秦涛黄玉平王圆圆武迎迎
Owner WEICHAI POWER CO LTD
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