A vehicle and its vacuum pump control method and device

A control method and technology of a vacuum pump, which are applied in the field of vehicles, can solve the problems of increasing safety hazards and imperfect control methods, and achieve the effect of improving safety and solving the increasing safety hazards.

Active Publication Date: 2021-08-10
BYD CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present disclosure is to provide a vehicle and its vacuum pump control method and device, so as to solve the problem that the existing vacuum pump control method has increased potential safety hazards during vehicle driving due to the imperfect control method

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  • A vehicle and its vacuum pump control method and device
  • A vehicle and its vacuum pump control method and device
  • A vehicle and its vacuum pump control method and device

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Embodiment Construction

[0020] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure 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 disclosure, not to limit the present disclosure.

[0021] In order to illustrate the technical solutions of the present disclosure, specific examples are used below to illustrate.

[0022] An embodiment of the present disclosure provides a vacuum pump control method, which is used for controlling the start and stop of the vacuum pump in the vacuum pump system of the vehicle. Such as figure 2 As shown, the vacuum pump system includes a vacuum pump control module 21 , a vacuum pump driving module 22 , a vacuum pump 23 and a vacuum pump pressure sensor 24 . Wherein, the vacuum pump driving module 22 is connected with the vacuum pump 23, the v...

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Abstract

The present disclosure proposes a vehicle and its vacuum pump control method and device. The vacuum pump control method sets up M vacuum pump control loops and detects whether the vacuum pump pressure sensor fails when at least one of the vacuum pump control loops does not fail. If the pressure sensor does not fail, obtain the current driving state of the vehicle and the current vacuum degree of the vacuum pump, and control the start and stop of the vacuum pump according to the current driving state of the vehicle and the current vacuum degree of the vacuum pump, and at the same time detect the air leakage of the vacuum pump, The corresponding message information can be output according to the detection results, so as to realize the control according to the driving state of the vehicle during the vacuum pump control process, and has a fault detection function, which greatly improves the safety of the vehicle during driving, and then solves the existing problems The vacuum pump control method of the present invention has the problem that the safety hazard increases during the driving process of the vehicle due to the imperfect control method.

Description

technical field [0001] The present disclosure relates to the technical field of vehicles, in particular to a vehicle and a vacuum pump control method and device thereof. Background technique [0002] In recent years, with the development of new energy vehicle technology, electric vehicles are gradually replacing traditional fuel vehicles due to their green and environmentally friendly features. Because the vacuum brake boost required by traditional fuel vehicles is to inhale air when the engine is working, resulting in the automatic generation of vacuum on one side of the booster, but in electric vehicles, when the motor is used instead of the engine to drive the vehicle, vacuum boost cannot be automatically generated, so for To ensure the performance of electric vehicles, the prior art adopts electric vacuum pumps to realize. [0003] Due to the importance of the braking system in the running of the vehicle, the perfection of the vacuum pump control method directly affects...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/52B60T13/72B60T17/22
CPCB60T13/52B60T13/72B60T17/22
Inventor 宫熔贺静杨洪魏娟娟
Owner BYD CO LTD
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