Braking vacuum servo force system and braking vacuum servo force control method

A control method and a technology of vacuum boosting, which are applied in the field of brake vacuum booster system and brake vacuum booster control, can solve the problem of brake booster control, cannot guarantee the safety of drivers to the greatest extent, and cannot fully realize the reliability and effectiveness of the brake vacuum booster system and other issues to achieve the effect of increasing reliability and effectiveness and ensuring safety

Active Publication Date: 2010-03-31
BYD CO LTD
View PDF1 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under abnormal circumstances, such as the failure of the main control ECU, the brake booster cannot be controlled, so the reliability and effectiveness of the brake vacuum booster system cannot be fully realized, and the safety of drivers cannot be guaranteed to the maximum extent.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Braking vacuum servo force system and braking vacuum servo force control method
  • Braking vacuum servo force system and braking vacuum servo force control method
  • Braking vacuum servo force system and braking vacuum servo force control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The brake vacuum booster system and the control method of the brake vacuum booster system provided by the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0013] The brake vacuum boosting control system provided by the present invention includes a main ECU 12 and a main control loop, the main ECU 12 is connected to the main control loop, the main ECU 12 is used to receive an electrical signal indicating the air pressure value, and according to the electrical signal The signal outputs control signals through the main control loop to control the vacuum pump 6. The control system also includes a slave ECU 17 and a slave control loop. The slave ECU 17 is connected to the master ECU 12 and the slave control loop respectively. The slave The ECU 17 is used to replace the main ECU 12 to receive the electrical signal indicating the air pressure value when at least one of the main ECU 12 and the main control loop is in an...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a braking vacuum servo force system and a braking vacuum servo force control method; a main ECU (12) is used for receiving electric signals expressing the magnitude of atmospheric pressure value and outputting control signals for controlling a vacuum pump (6) through a main control loop according to the electric signals, and a slave ECU (17) is used for replacing the main ECU (12) for receiving the electric signals expressing the magnitude of the atmospheric pressure and outputting control signals for controlling the vacuum pump (6) through a slave control loop accordingto the electric signals, when one of the main ECU (12) and the main control loop is in an abnormal state. The braking vacuum servo force system and the braking vacuum servo force control method in the invention avoid the problem of the out of control vacuum pump when the main ECU (12) and/or the main control loop are/is invalid, thus enhancing reliability and effectiveness of braking servo and ensuring safety of drivers to the utmost.

Description

technical field [0001] The invention relates to an automobile brake system, in particular to a brake vacuum booster system and a brake vacuum booster control method. Background technique [0002] At present, automobiles are basically equipped with brake boosters, especially the use of brake vacuum boosters is very popular. The principle is to use the pressure difference between the negative pressure generated when the engine is working and the atmospheric pressure to force the rubber diaphragm in the brake vacuum booster to move and push the piston of the brake master cylinder, thereby reducing the force of people stepping on the brake pedal. [0003] Traditional fuel vehicles mainly use the rotation of the engine to continuously pump the vacuum to ensure a certain amount of brake power, and the operation method is more sensitive. In existing electric vehicles, the engine has been replaced by an electric motor, and the engine in a hybrid vehicle does not work all the time, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/72B60T13/52B60T17/22
CPCB60T13/57B60T13/72B60T13/52
Inventor 徐循进
Owner BYD CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap