Strange speed edge strip collision test equipment

摘要

PROBLEM TO BE SOLVED: To collide two vehicles having different masses at a collision point decided at different speeds by controlling towing motors so that the residual times to the point of the two vehicles become the same in a side collision test. SOLUTION: In circuits C1, C2 for controlling drums D, D for towing vehicles A, B by drive motors M1, M2 by using speed controllers 71 , 72 and current controllers 91 , 92 , the distances L1 , L2 from the starts of the vehicles to a collision point and the residual distances ▵L1 , ▵L2 from the pulses from pulse pickups PP1, PP2 to the collision are obtained (221 , 222 ), the residual times t1 , t2 to the collision are obtained from the ▵L1 , ▵L2 , speeds VD1 , VD2 and set speeds (231 , 232 ), the torque correction amounts TS1 , TS2 coresponding to the differences of the t1 , t2 are calculated. The correction amount of the circuit having larger residual time such as, for example, the correction amount TS2 of the circuit C2 is added to a current command to increase the torque of (122 , 82 )M, and the polarity is altered (252 ), the speed of (41 )M1 in addition to the speed command of the other circuit C1, and controlled so that the t1 , t2 become equal.