| 摘要 |
PURPOSE:To increase the safety of steerage as well as to pevent a return defective in a handle from occurring, by installing an electric control device which controls a frictional force applier so as to increase a degree of frictional force according to an increase in a car speed. CONSTITUTION:A frictional force applier 18 is provided with a solenoid 20 and a core 21, while a contact maker 19 is solidly attached to this core 21. The solenoid 20 is energized with current by an electric control unit 30, and as a result, the core 21 is attached to the side of a yoke 23 against resilient force in a spring 22 whereby frictional force of the contact maker 19 against a rotor 17 is increased according to the current value. The electric control unit 30 controlling the frictional force giver 18 is provided with a microprocessor 31 and a random access memory 32 plus a read-only memory 33, and in this ROM 33, a control program and control data are stored in memory so that the microprocessor 31 operates on the basis of this control program. |
