| 摘要 |
PURPOSE:To eliminate accumulation of errors and to obtain the sure action over a long period, by inputting a turn position detecting sensor signal to a counter circuit and initializing its clock pulse counted value when a pulse motor turns to a predetermined position. CONSTITUTION:A control circuit is constituted of an input circuit 1, various sensors 2 of car speed and steering angle, control condition setter circuit 3, comparator circuit 4, driving pulse oscillator circuit 5, counter circuit 6, gate circuits 7, driving circuits 8, pulse motors 9, valve mechanisms 10 and turn position detecting sensors 11. Here the counter circuit 6, which counts a counting value to be replaced with a hard mode position serving for the reference value, corrects an error between the counting value of the counter circuit 6 and the actual turn value of the pulse motor 9 in the hard mode position. Accordingly, damping force can be surely regulated over a long period preventing the error of the actual turn value of the pulse motor 9 from being accumulated. |
