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Vehicle braking system fault diagnosis method, device and system and vehicle

A system failure and diagnosis method technology, applied in the direction of braking safety system, combustion engine, internal combustion piston engine, etc., can solve the problems of time-consuming and laborious, low efficiency of fault diagnosis method, inability to accurately judge the fault point of the braking system, etc., to achieve The effect of avoiding losses

Active Publication Date: 2022-07-12
SANY ELECTRIC VEHICLE TECH CO LTD
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Problems solved by technology

[0003] The above-mentioned fault diagnosis method is inefficient, time-consuming and labor-intensive, and cannot accurately determine the fault point of the braking system

Method used

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  • Vehicle braking system fault diagnosis method, device and system and vehicle
  • Vehicle braking system fault diagnosis method, device and system and vehicle
  • Vehicle braking system fault diagnosis method, device and system and vehicle

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Embodiment Construction

[0034] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below with reference to the accompanying drawings in the present application. Obviously, the described embodiments are part of the embodiments of the present application. , not all examples. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of this application.

[0035] The terms "first", "second" and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustr...

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Abstract

The invention provides a vehicle braking system fault diagnosis method, device and system and a vehicle, and is applied to the field of vehicle fault diagnosis. The method comprises the steps that air pressure parameters of a braking system in different braking states are collected; determining a fault point according to the air pressure parameter; wherein the air pressure parameters comprise at least one of the following items: the whole vehicle brake air pressure, the air pressure between the dryer and the brake master cylinder, the air pressure between the brake master cylinder and the relay valve, and the air pressure of the brake air chamber. According to the vehicle braking system fault diagnosis method, device and system and the vehicle, the pressure values of all the parts of the braking system in different braking states can be monitored in real time in the running process of the vehicle, and whether the braking system breaks down or not is determined according to the pressure values of all the parts. When the braking system breaks down, a driver can be reminded of a corresponding fault point on a central control screen of the vehicle.

Description

technical field [0001] The present application relates to the field of vehicle fault diagnosis, and in particular, to a method and device for fault diagnosis of a vehicle braking system. Background technique [0002] Vehicles equipped with a pneumatic brake system, when the brake system fails, such as air leakage in the brake air circuit, brake pedal failure, etc., may lead to wheel dragging, poor braking effect, and inability to release parking. Commonly used fault diagnosis methods include spraying soapy water, and judging whether there is air leakage in the braking system by observing whether there are air bubbles. [0003] The above fault diagnosis method is inefficient, time-consuming and labor-intensive, and cannot accurately determine the fault point of the braking system. SUMMARY OF THE INVENTION [0004] The purpose of this application is to provide a vehicle braking system fault diagnosis method, device, system and vehicle, which can monitor the pressure value o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T17/22
CPCB60T17/22Y02T10/40
Inventor 舒信通张明朱丹阳
Owner SANY ELECTRIC VEHICLE TECH CO LTD
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