Title:
MOTOR-DRIVEN POWER STEERING DEVICE
Document Type and Number:
Japanese Patent JPS6474164
Kind Code:
A
Abstract:
PURPOSE:To enable the optimum assist force to be continually generated in proper quantities by detecting vehicle weight acting on a steered wheel and controlling the assist force of steering being based on the detecting result. CONSTITUTION:When a handle is controlled, detecting control force, applied to the handle 1, by a torque sensor 8, an output current I in accordance with detected steering torque tau is supplied to an assist generating electric motor 5 from a control unit 10. And giving power of this electric motor 5 to a rack 3 through a reduction gear 6 and a pinion 7, steering control action is assisted. Here providing a load sensor 9 in a suspension part of a steered wheel (front wheel) 4, detecting car weight acting on the front wheel 4 by the load sensor 9 and selecting one of the two or more function characteristics, showing the relation between the steering torque tau and the output current I, in accordance with the car weight, the output current I is determined in accordance with this function characteristic, generating the predetermined assist force.
More Like This:
| JP5614581 | Vehicle steering system |
| JP4400738 | Steering device for 4-wheel steering vehicles |
Inventors:
ISHIKURA HISATSUGU
TAWARA KAZUO
ABUKAWA TOSHIMI
MARUMOTO KATSUJI
KODERASAWA TOSHIYUKI
MOTOBE MITSUSACHI
TAKAHASHI TADASHI
YAMAMURA HIROHISA
TATSUZAKI TORU
OMAE TSUTOMU
TAKAMATSU SHUICHI
TAWARA KAZUO
ABUKAWA TOSHIMI
MARUMOTO KATSUJI
KODERASAWA TOSHIYUKI
MOTOBE MITSUSACHI
TAKAHASHI TADASHI
YAMAMURA HIROHISA
TATSUZAKI TORU
OMAE TSUTOMU
TAKAMATSU SHUICHI
Application Number:
JP22990487A
Publication Date:
March 20, 1989
Filing Date:
September 16, 1987
Export Citation:
Assignee:
HITACHI LTD
HITACHI AUTOMOTIVE ENG
HITACHI AUTOMOTIVE ENG
International Classes:
B62D5/04; B62D6/02; (IPC1-7): B62D5/04; B62D6/02
Domestic Patent References:
| JPS5555059A | 1980-04-22 | |||
| JPS6076472A | 1985-04-30 | |||
| JPS5815582B2 | 1983-03-26 | |||
| JPS61257363A | 1986-11-14 |