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Electric automobile vacuum pump control method and device, controller and automobile

A technology of electric vehicles and control methods, which is applied in the direction of braking transmissions, brakes, vehicle components, etc., and can solve problems such as brake failure and reduced vehicle braking performance

Active Publication Date: 2018-01-26
BEIJING ELECTRIC VEHICLE
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AI Technical Summary

Problems solved by technology

[0004] The present invention provides a vacuum pump control method, device, controller and vehicle for an electric vehicle, the purpose of which is to solve the problem that if a failure occurs during the operation of the vacuum pump, the braking performance of the vehicle will be easily reduced, and even dangerous situations such as braking failure will be caused. The problem

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  • Electric automobile vacuum pump control method and device, controller and automobile
  • Electric automobile vacuum pump control method and device, controller and automobile
  • Electric automobile vacuum pump control method and device, controller and automobile

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Embodiment Construction

[0114] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0115] see figure 1 , an embodiment of the present invention provides a vacuum pump control method for an electric vehicle, which is applied to a vacuum booster controller VBP, and the VBP communicates with a control module of the electric vehicle, and the method includes:

[0116] Step 101, acquiring a preset signal of the control module.

[0117]Wherein, the control module is a control module connected with a vacuum booster controller (Vaccum Brakin...

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Abstract

The invention provides an electric automobile vacuum pump control method and device, a controller and an automobile. The method is applied to a vacuum boost controller VBP in communication connectionwith a control module of an electric automobile. The method includes: acquiring a preset signal of the control module; when detecting that the preset signal accords with a preset fault condition, determining a control module associated fault condition of the vacuum pump; determining a corresponding fault level of the fault condition according to a preset corresponding relation between fault conditions and fault levels; executing a preset fault handling operation corresponding to the fault level.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a vacuum pump control method, device, controller and automobile of an electric automobile. Background technique [0002] With the rapid development of automobile technology, new energy vehicles, mainly electric vehicles, have gradually opened up the market and entered people's lives. Because the electric vehicle is driven by a motor instead of the engine drive of a traditional car, it loses the source of vacuum and cannot provide vacuum boost for the brake master cylinder of the car. Vacuum pumps for electric vehicles are created to make up for this deficiency. The vacuum pump is powered by the on-board battery, and the motor on the pump body is pushed to move the piston to generate a vacuum, which provides a vacuum source for the electric vehicle. [0003] However, if the vacuum pump fails during operation, the braking performance of the vehicle will be easily reduced, and...

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Application Information

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IPC IPC(8): B60T17/22B60T13/52
Inventor 刘成祺易迪华张兆龙田林涛王松涛
Owner BEIJING ELECTRIC VEHICLE
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