| 摘要 |
PURPOSE:To perform the speed matching control of a control circuit without generating the delay of timewise response, by obtaining the rotation indicating signal of a follower wheel by adding the speed detection signal of a drive wheel and the differentiation signal thereof. CONSTITUTION:The number of rotations of the drive wheel 11 for driving the rear wheel 1a of a car 1 to be tested is detected as voltage through a dynamo meter 12, a pulse pick 13 and a frequency-voltage converter 14. This voltage and the differentiated voltage by a differentiation circuit 16 are added by a comparator 15 to generate the rotation order signal of the follower wheel 21 for driving a front wheel 1b and, corresponding to the deviation of the rotation order signal by the comparator 15 and the detection voltage corresponding to the number of rotations of the follower wheel 21 detected in the same way, a dynamo meter 22 receives feedback control through a speed control circuit 17. The response delay of the circuit 17 is substantially eliminated by the rotary order signal to which differential voltage was added and the speed matching control of the rear and front wheels of the car to be tested can be performed without generating the delay of timewise response. |
