Magneto-electrohydraulic power steering system
AssigneeGeneral Motors Corporation
InventorChandra Sekhar Namuduri
Life of this patent
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Abstract
A magneto-electrohydraulic power steering system for a vehicle includes a magneto-electrohydraulic power steering pump interconnecting a power steering gear of the vehicle and a drive shaft of an engine of the vehicle. The magneto-electrohydraulic power steering system also includes a controller operatively connected to the magneto-electrohydraulic power steering pump to generate a current signal to vary a speed of the magneto-electrohydraulic power steering pump.
Claims20
A magneto-electrohydraulic power steering system for a vehicle comprising:
- a power steering gear;
- a magneto-electrohydraulic power steering pump interconnecting said power steering gear of the vehicle and a drive shaft of an engine of the vehicle, said magneto-electrohydraulic power steering pump including a magneto-rheological fluid clutch;
- an electronic controller electrically connected to said magneto-rheological fluid clutch to generate a current signal to vary a speed of the magneto-electrohydraulic power steering pump;
- and
- a current amplifier electrically interconnecting said electronic controller and said magneto-rheological fluid clutch to control current of the current signal through a coil of said magneto-rheological fluid clutch.
A magneto-electrohydraulic power steering system comprising:
- a power steering gear;
- a magneto-electrohydraulic power steering pump comprising a hydraulic pump connected to said power steering gear and a magneto-rheological fluid clutch connected to said hydraulic pump and for connection to a drive shaft of an engine, said magneto-rheological fluid clutch including a coil;
- a current amplifier electrically connected to said coil of said magneto-rheological fluid clutch to provide current to said coil of said magneto-rheological fluid clutch;
- and
- an electronic controller electrically connected to said current amplifier to generate the current from said current amplifier to vary a speed of the magneto-electrohydraulic power steering pump.
A power steering system comprising:
- a power steering gear;
- a power steering pump connected to said power steering gear;
- an intermediate shaft connected to said power steering pump and axially aligned with a drive shaft of an engine;
- a magneto-rheological fluid clutch connected to said intermediate shaft and for connection to the drive shaft, said magneto-rheological fluid clutch including a coil;
- a current amplifier electrically connected to said coil to provide current to said coil;
- and
- an electronic controller electrically connected to said current amplifier to generate the current from said current amplifier to said coil to vary a speed of said power steering pump.
Dependencies are inferred from the claim text.