Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Patent
1987-11-16
1988-10-25
Love, John J.
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
280 91, B62D 602
Patent
active
047796936
ABSTRACT:
A rear wheel steering apparatus for a vehicle with hydraulic power steering for the front wheels is disclosed. Pressure sensors detect the hydraulic pressure in the two chambers of a power cylinder for the front wheels. A differential amplifier which is connected to the pressure sensors produces an output signal corresponding to the pressure difference between the chambers. An electric motor for steering the rear wheels is controlled by a control unit in response to the output signal from the differential amplifier and an output signal from a vehicle speed sensor. At high speeds, the rear wheels are steered in the same direction as the front wheels, and at low speeds, they are steered in the opposite direction. When the steering wheel is in a neutral position and a sudden lateral force acts on the vehicle to cause a cornering force to be exerted on the front wheels, the rear wheels are steered in the direction tending to increase the restoring moment acting on the vehicle.
Konno Toshihiro
Morishita Mitsuharu
Takahashi Akira
Ferriter Karin L.
Fuji Jukogyo Kabushiki Kaisha
Love John J.
Mitsubishi Danki Kabushiki Kaisha
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