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Vehicle and vacuum pump control method and device thereof

A control method and vacuum pump technology, applied in the field of vehicles, can solve problems such as increased safety hazards and insufficient control methods

Active Publication Date: 2020-07-07
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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  • Vehicle and vacuum pump control method and device thereof
  • Vehicle and vacuum pump control method and device thereof
  • Vehicle and vacuum pump control method and device thereof

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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 invention provides a vehicle and a vacuum pump control method and device thereof. According to the vacuum pump control method, M vacuum pump control loops are arranged; when at least one vacuum pump control loop does not fail, whether a vacuum pump pressure sensor fails or not is detected, the current driving state of the vehicle and the current vacuum degree of a vacuum pump are further obtained under the condition that the vacuum pump pressure sensor does not fail; the start-stop of the vacuum pump is controlled according to the current driving state of the vehicle and the current vacuumdegree of the vacuum pump; air leakage detection is performed on the vacuum pump at the same time; and corresponding message information is output according to the detection result, so that control is performed according to the driving state of the vehicle in the vacuum pump control process. In addition, a fault detection function is achieved, the safety in the vehicle driving process is greatlyimproved, and the problem that potential safety hazards are increased in the vehicle driving process due to the fact that an existing vacuum pump control method is not perfect enough is solved.

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 Applications(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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