Brake feedback control circuit and method of electric vehicle

A technology of braking feedback and electric vehicles, which is applied in the direction of electric vehicles, electric braking systems, vehicle components, etc., can solve problems such as inability to brake, and achieve the effect of avoiding impact and improving braking safety performance

Active Publication Date: 2012-06-20
苏州海格电控股份有限公司
View PDF4 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly solves the technical problems existing in the prior art, thereby providing an improved brake feedback control circuit and scheme for an electric vehicle,

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
  • Brake feedback control circuit and method of electric vehicle
  • Brake feedback control circuit and method of electric vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0017] The invention provides an improved braking feedback control circuit and scheme of an electric vehicle, which overcomes the disadvantage that the electric vehicle cannot brake when the power battery is sufficient, and improves the braking safety performance of the electric vehicle.

[0018] Such as figure 1 Shown is the brake feedback control circuit of the electric vehicle of the present invention, the control circuit includes a controller 1, a power battery 2, a motor 3 and a first DC contactor 4 and second DC contactor 8, a braking resistor 6 is arranged in parallel with the motor 3, and the braking resistor 6 controls the braking resist...

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 discloses a brake feedback control circuit of an electric vehicle. The control circuit comprises a controller, a power battery, a motor, a first DC (direct current) contactor and a second DC contactor, wherein the first DC contactor and the second DC contactor are used for controlling the on/off of the circuit between the power battery and the motor; a brake resistor is connected in parallel with the motor; and the brake resistor controls the on/off of the circuit between the brake resistor and the motor through a first DC contactor and a fuse. Through the brake feedback control circuit and method of an electric vehicle disclosed by the invention, the shortcoming that the electric vehicle cannot be braked when the power battery is sufficient is overcome, thereby improving the safety performance in braking the electric vehicle and avoiding influence on the driver caused by different brake feelings.

Description

technical field [0001] The invention relates to an electronic control system of an electric vehicle, in particular to a brake feedback control circuit and method of the electric vehicle. Background technique [0002] Braking energy feedback is one of the key technologies for pure electric vehicles and hybrid vehicles to reduce fuel consumption. The current braking energy feedback control method simply superimposes the motor braking force and mechanical braking force, but the motor braking is limited by the battery capacity. limit. When the battery power is low, the battery can absorb the braking feedback energy, and the motor can brake, and the total braking force is the motor braking force plus the mechanical braking force; when the battery power is sufficient, the battery can no longer absorb the braking feedback energy. If the energy is low, the motor cannot perform braking, and the total braking force is only the mechanical braking force. Sufficient or insufficient bat...

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
IPC IPC(8): B60L7/08
Inventor 陆中华
Owner 苏州海格电控股份有限公司
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