Electric Vehicle Tire Slip Identification Method Based on Self-Adaptive Kalman Filter

Abstract:

Based on the traits of the four-wheel drive EV, a self-adaptive Kalman filter was applied to gain the information of vehicle velocity and traction forces on four wheels. With the estimated vehicle velocity and the driving forces on four wheels, the slope k of the curves of adhesion coefficient versus slip rate could be calculated and consequently the road adhesion condition could be accurately identified. Through calculating the difference between the estimated slope k with the optimized slope k as a control reference, the output torques of the motors were adjusted instantaneously to improve the using rate of the adhesion as well as the rationality of the traction control strategy. Simulation results illustrate that whether on high adhesion or low adhesion roads the vehicle is passing, the strategy can estimate the k effectively.

• Periodical: Advanced Materials Research (Volumes 503-504)
• Pages: 1070-1073
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.503-504.1070
• Online since: April 2012
• Authors: Si Jia Zhou, Jiang Qi Long, Jing Yan Xia, Zhong Gen Su
• Keywords: Electric Vehicle (EV), Self-Adaptive Filter, Slip Identification

References

[1] Nobukazu Hoshi, Atsuo Kawamura. Experimental discussion on the permanent magnet type anti-directional-twin-rotary motor drive for electric vehicle. IEEE Transactions on Industrial Elec-tronics, 1999, pp.425-429.

DOI: 10.1109/amc.1996.509286

[2] Remus Pusca, Youcef Ait-Amirat, Alain Berthon et al. Modeling and simulation of a traction control algorithm for an electric vehicle with four separate wheel drives. IEEE Transactions on Industrial Electronics, 2002, pp.1671-1675.

DOI: 10.1109/vetecf.2002.1040500

[3] Yoichi Hori, Yasushi Toyoda, Yoshimasa Tsuruo-ka. Traction control of electric vehicle based on the estimation of road surface condition. IEEE Transactions on Industrial Electronics, 1997, pp.1-8.

[4] Vincenzo Delli Colli, Giovanni Tomassi, Maurizio Scarano. Single wheel longitudinal traction control for electric vehicle. IEEE Transactions on Power Electronics, 2006, 21(3), pp.799-803.

DOI: 10.1109/tpel.2006.872363