Steering power controller for power steering device

Abstract

Abstract PURPOSE:To achieve the optimal steering power control by detecting the input torque and the output torque of the power steering device and continuously following said steering characteristic to the target characteristic predetermined in accordance to the control intput condition. CONSTITUTION:The outputs from a car speed sensor 21, rotary angle sensor 22 for detecting the handle rotary angle, input torque sensor 23, output torque sensor 25 and a differential circuit 25 for producing the signal corresponding to the handle rotary speed are inputted to the multiplexer 26 and selected in time sharing then converted into the digital value through an A/D converter 27. The signal from A/D converter 27 is fed through an I/O interface circuit 31 to a central processing unit (CPU) 28 where it is processed and inputted again to said circuit 31 and a solenoid valve 12 is controlled by the output signal from said circuit 31 to maintain the steering power at the optimal state.

Inventors

• 👤 Kyoichi Nakamura
• 👤 中村　京市
• 👤 Kyosuke Haga
• 👤 芳賀　恭輔
• 👤 Yutaka Mori
• 👤 豊 森

Bibliographic Details