Road load insensitive electric power steering system

The torque gain of an electric motor assisted power steering system is modified as a function of the estimated level of road load friction such that the relationship between the operator exerted steering torque and the resulting rate of steer is substantially insensitive to a reduction in the level...

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Bibliographic Details
Main Authors KADE; ALEXANDER, AGARWAL; PAUL D, FRUECHTE; ROGER D, RADOMSKI; THOMAS A
Format Patent
LanguageEnglish
Published 09.07.1985
Edition3
Subjects
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
MOTOR VEHICLES
PERFORMING OPERATIONS
TRAILERS
TRANSPORTING
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Summary:The torque gain of an electric motor assisted power steering system is modified as a function of the estimated level of road load friction such that the relationship between the operator exerted steering torque and the resulting rate of steer is substantially insensitive to a reduction in the level of road load. The road load is estimated as a function of the operator exerted steering torque, the torque assist provided by the electric motor, and the resulting steer rate.
Bibliography:Application Number: US19840572874