Abstract

Regenerative braking makes the braking stability of electric vehicles change when it recovers the braking energy of vehicles. The calculation models were established for electric braking force, electric braking torque and utilization adhesion coefficients of front axle and rear axle, aiming at the electro mechanical hybrid braking system composed of electric braking and conventional mechanical friction braking. The utilization adhesion coefficients of front and rear axles were calculated respectively with the paralleled-hybridized braking control strategy under different braking intensity, according to front-wheel drive and rear-wheel drive in the electro mechanical hybrid braking system. The calculation results indicate that rear-wheel drive is not suitable for electro mechanical hybrid braking system from the perspective of energy recovery and braking stability. For front-wheel drive of electro-mechanical hybrid braking system, front-axle is always locked ahead of rear-axle no matter what the electric motor is working at the constant power braking area or constant torque braking area, and the braking stability is preferable. However, the front wheels are locked between times when braking intensity is weak. This case could be improved by adjusting the electric braking force in order to meet the requirements of braking stability of ECE regulation.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.