SECURING THE ASSISTANCE TORQUE BY MEANS OF AN ESTIMATOR OF THE FORCE ON THE RACK

SECURING THE ASSISTANCE TORQUE BY MEANS OF AN ESTIMATOR OF THE FORCE ON THE RACK

A method for securing the assistance torque (15) supplied by an electric assistance motor (8) in a motor vehicle power steering system includes the steps of: estimating the force on the steering system rack from the torque exerted by the driver on the steering wheel (2), from the assistance torque (...

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Hauptverfasser: DELARCHE, JOCELYN, MICHELIS, ANDRÉ, PILAZ, PIERRE, RAVIER, CHRISTOPHE
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
MOTOR VEHICLES
PERFORMING OPERATIONS
TRAILERS
TRANSPORTING
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creator DELARCHE, JOCELYN
MICHELIS, ANDRÉ
PILAZ, PIERRE
RAVIER, CHRISTOPHE
description A method for securing the assistance torque (15) supplied by an electric assistance motor (8) in a motor vehicle power steering system includes the steps of: estimating the force on the steering system rack from the torque exerted by the driver on the steering wheel (2), from the assistance torque (15), and optionally from other parameters such as the speed of the electric assistance motor; comparing a target assistance torque with an authorized assistance range, defined with respect to the estimated rack force (17) at any moment, and in the event the target assistance torque is maintained above predefined limits for a predefined duration, correcting and optionally interrupting the power steering.
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subjects LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
MOTOR VEHICLES
PERFORMING OPERATIONS
TRAILERS
TRANSPORTING
title SECURING THE ASSISTANCE TORQUE BY MEANS OF AN ESTIMATOR OF THE FORCE ON THE RACK
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