Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Patent
1987-09-03
1988-12-27
Mitchell, David M.
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
36442405, B62D 506
Patent
active
047934310
ABSTRACT:
There is disclosed an apparatus for controlling the ratio of the assisting force produced by a power-steering system installed in an automobile to the steering torque supplied by the driver. The apparatus primarily consists of a microprocessor, a ROM, and a RAM. The microprocessor controls the amount of current supplied to a solenoid valve according to the velocity of the automobile. The aforementioned ratio is varied according to the driver's condition and the road condition. Four graphs representing the relation of the electric current supplied to the solenoid valve to the angle through which the steering wheel is rotated are stored in the ROM. Each graph has two characteristic curves for two different values of the velosity of the automobile. The microprocessor calculates a driver's condition index from the output signal from a velocity sensor. Also, it calculates a road condition index from the output signal from a steering angle sensor. The value of the current supplied to the solenoid valve is selected from the data stored in the ROM according to these indices.
REFERENCES:
patent: 4476529 (1984-10-01), Nakamura
patent: 4506909 (1985-03-01), Nakashima et al.
patent: 4574905 (1986-03-01), Asano
patent: 4593358 (1986-06-01), Takeshima et al.
patent: 4602695 (1986-07-01), Takeshima et al.
patent: 4626994 (1986-12-01), Yabe et al.
patent: 4651290 (1987-03-01), Masaki et al.
patent: 4662466 (1987-05-01), Eto
patent: 4676334 (1987-06-01), Nakamura
patent: 4690233 (1987-09-01), Daido
patent: 4705130 (1987-11-01), Fukunaga et al.
Eto Kunihiko
Kodama Kazumasa
Mori Yutaka
Diederiks, Jr. Everett G.
Mitchell David M.
Toyoda Koki Kabushiki Kaisha
LandOfFree
Apparatus for controlling steering force produced by power-steer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for controlling steering force produced by power-steer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for controlling steering force produced by power-steer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-862750