| 摘要 |
PURPOSE:To make the operation of a steering wheel smooth and to prevent a hitch phenomenon in steering feeling from being brought about, by rising up the rotation of an oil pump in accordance with the rate of steering with the use of the line of rotation of a vehicle speed sensitive base. CONSTITUTION:A pulse output corresponding to a steering rate detected by a steering sensor 11 is delivered to an echo OFF circuit 15 for turning off the time constant characteristic of a time constant circuit 12 when it passes through a peak value hold pulse shaping unit 13, the time constant circuit 12 and a base rotation line. A pulse output from a vehicle speed sensor 10 is delivered to a frequency-voltage converter (F/V converter) 14 and the echo OFF circuit 15. All outputs of the time constant circuit 12, the pulse shaping unit 13 and the F/V converter 14 are connected to a comparating circuit 18 the output of which is connected through a pulse width modulation (PWM) amplifier 19 to a motor 7 for driving an oil pump. |
