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

A new energy vehicle regenerative braking control method and device

A technology of new energy vehicles and braking torque, which is applied in the direction of control devices, control drives, electric vehicles, etc., can solve problems such as vehicle braking irregularities, achieve the effects of saving braking costs, ensuring ride comfort and safety

Active Publication Date: 2020-09-01
ZHENGZHOU YUTONG BUS CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a regenerative braking control method and device for new energy vehicles, which is used to solve the problem of uneven braking when the electric brake is removed when the ABS is triggered in the prior art

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
  • A new energy vehicle regenerative braking control method and device
  • A new energy vehicle regenerative braking control method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0024] An embodiment of the new energy vehicle regenerative braking control method of the present invention.

[0025] When ABS detects that the wheel slip rate is greater than a set value, the ABS identification signal will change from 0 to 1, which is called ABS trigger; when it detects that the wheel slip rate is less than the second set value, the ABS identification signal will change from 1 to 0, which is called ABS recovery.

[0026] When the ABS is triggered, the control motor starts from the current actual braking torque and gradually reduces the braking torque, and the braking torque detects the ABS identification signal in real time during the reduction process. When the identification signal changes from 1 to 0, That is, when the ABS changes from triggering to recovery, the control motor takes the actual motor torque at the moment...

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 new energy vehicle regenerative braking control method and device. The method comprises detecting identification signals of the anti-lock brake system in real time during the braking process; when it is detected that an identification signal of the anti-lock brake system is valid, a motor is controlled to gradually reduce the braking torque. The invention does not need to be equipped with an electronically controlled braking system, nor does it need to add a separate controller. Only the combined control of the anti-lock braking system and the electric brake can avoid the problem of the car fronting caused by the removal of the electric brake when the identification signal of the anti-lock braking system is triggered, thereby saving the cost of braking.

Description

technical field [0001] The invention belongs to the technical field of new energy regenerative braking systems and anti-lock braking systems, and in particular relates to a regenerative braking control method and device for new energy vehicles. Background technique [0002] In order to reflect the energy-saving and environmental protection advantages of new energy vehicles, new energy vehicles are required to have regenerative braking functions in addition to traditional mechanical braking, and ABS (Antilock Brake System, anti-lock braking system) is a must for modern automobile braking safety. This requires coordinated braking control with ABS in the process of regenerative braking, which also requires the vehicle to have the function of wheel anti-lock braking in the process of regenerative braking. [0003] At present, most of the new energy vehicles adopt the following braking method: the brake pedal opening only adopts the electric braking method before the idling strok...

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 Patents(China)
IPC IPC(8): B60L7/18B60L15/20
CPCB60L7/18B60L15/2009B60L2240/423Y02T10/72
Inventor 沙超王炜斌
Owner ZHENGZHOU YUTONG BUS 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