Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Braking method of electronic parking braking system, electronic parking braking system and vehicle

An electronic parking brake and vehicle technology, applied in the direction of brakes, etc., can solve the problems of easy loss of control, poor braking stability of DSD function, and inability to guarantee braking stability, etc., to achieve the effect of preventing loss of control and maintaining stability

Active Publication Date: 2017-05-10
GUANGZHOU AUTOMOBILE GROUP CO LTD
View PDF4 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the wheel speed signal is lost, due to the poor braking stability of the current DSD function, it cannot guarantee the braking stability on low-attached roads or separated roads, and the vehicle is prone to loss of control during braking. Phenomenon

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 method of electronic parking braking system, electronic parking braking system and vehicle
  • Braking method of electronic parking braking system, electronic parking braking system and vehicle
  • Braking method of electronic parking braking system, electronic parking braking system and vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] In order to further illustrate the technical means adopted by the present invention and the achieved effects, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and preferred embodiments.

[0021] like figure 1 Shown, a braking method of an electronic parking brake system, comprising steps:

[0022] S110. When the first wheel speed sensor of the wheel fails, obtain the wheel speed signal from the second wheel speed sensor that is working normally on the wheel, and obtain the wheel speed signals of the remaining wheels of the vehicle;

[0023] S120. Obtain the slip ratio of each wheel according to the wheel speed signal of each wheel;

[0024] S130. If the slip ratio of the wheel is not within the preset range, adjust the clamping force of the brake caliper of the wheel so that the slip ratio of the wheel is adjusted to be within the preset range.

[0025] The braking method of t...

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 relates to a braking method of an electronic parking braking system, the electronic parking braking system and a vehicle. The braking method includes the steps that when a first wheel speed sensor of a wheel loses efficacy, a wheel speed signal is acquired from a second wheel speed sensor, which normally works, of the wheel, and wheel speed signals of other wheels of the vehicle are acquired; the slip rate of each wheel is acquired according to the wheel speed signals of the wheels; and the clamping force of brake calipers of the wheels is adjusted if the slip rate of the wheels is not within a preset range, so that the slip rate of the wheels is adjusted to be within the preset range. By means of the braking method, the vehicle is kept stable in dynamic braking, and the phenomenon that the vehicle is out of control in the braking process is effectively prevented.

Description

technical field [0001] The invention relates to the technical field of electronic control, in particular to a braking method of an electronic parking brake system, an electronic parking brake system and a vehicle. Background technique [0002] Modern automobiles have become more and more widely used for mechanical control electronics. Take the EPB (Electrical Park Brake, electronic parking brake system) that replaces the traditional lever handbrake as an example. The electronic parking brake system can ensure that the vehicle can park stably on a slope of 30%. In addition, the electronic parking brake system automatically realizes thermal compensation, that is, if the vehicle is parked after forced braking, the rear brake disc will have a gap with the friction plate due to temperature drop. At this time, the motor will automatically start and drive the compression nut to compensate. The gap generated by the temperature drop ensures a reliable parking effect. [0003] In th...

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): B60T8/1755
Inventor 黄亮李赛赛李焕滔陈庆林
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com