This paper describes driving and braking torque control methods for front-and-rear-wheel-independent-drive type electric vehicles (FRID EVs); the methods are based on the distance between an obstacle and the running vehicle and the road surface condition, which are estimated using CCD cameras. The methods comprise three procedures: (i) a procedure to automatically control the braking torque on the basis of the estimated distance, (ii) a procedure to distribute the driving and braking torques to the front and rear wheels by using the friction coefficient estimated through the CCD cameras, and (iii) a procedure to control the slip ratios for the compensation of the error in the estimated friction coefficient. The effectiveness of the torque distribution method is mainly verified through simulations.
Driving and braking torque control methods for securing safe running of front-and-rear-wheel-independent-drive-type electric vehicles (FRID EVs)
2010-09-01
1046613 byte
Conference paper
Electronic Resource
English
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