| 摘要 |
PURPOSE:To enable the optional setting of various steering conditions corresponding to the desire of the driver of a vehicle and the state of the road, by making the levels of a drive speed signal and a steering angle signal adjustable by adjusters depending on a level adjustment signal. CONSTITUTION:An upper limit setting circuit 52, which receives the output signal of a drive speed sensor 30 through an F-V conversion circuit 51, and an absolute value circuit 54, which receives the output signal of a steering angle sensor 40, are provided in an electric controller for regulating the coil 23 of an electromagnetic control valve for regulating the flow rate of pressure oil to be supplied to both the chambers of a power cylinder in a power steering gear. The upper limit setting circuit 52 comprises an upper limit setter 52a made of a selector switch SW1 for choosing one of resistors R2-R4, and an operational amplifier 52b. The output signal of the circuit 52 is applied to a shift circuit 53 having a shift level setter 53a. An angle voltage control circuit 55 having an angle changeover circuit 55a is provided. The output signal of the absolute value circuit 54 is applied to the circuit 55. |
