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.


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    Title :

    Driving and braking torque control methods for securing safe running of front-and-rear-wheel-independent-drive-type electric vehicles (FRID EVs)


    Contributors:


    Publication date :

    2010-09-01


    Size :

    1046613 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English