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1. WO2008044010 - ELECTRIC POWER ASSISTED STEERING ASSEMBLY

Publication Number WO/2008/044010
Publication Date 17.04.2008
International Application No. PCT/GB2007/003839
International Filing Date 10.10.2007
IPC
B62D 5/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
5Power-assisted or power-driven steering
04electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
B62D 6/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
6Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
B62D 135/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
135Air moisture content
CPC
B62D 5/0472
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
5Power-assisted or power-driven steering
04electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
0457characterised by control features of the drive means as such
046Controlling the motor
0472for damping vibrations
Applicants
  • TRW LIMITED [GB]/[GB] (AllExceptUS)
  • JUNGHANNS, Birk [DE]/[GB]
Inventors
  • JUNGHANNS, Birk
Agents
  • BARKER BRETTELL LLP
Priority Data
0620143.811.10.2006GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ELECTRIC POWER ASSISTED STEERING ASSEMBLY
(FR) ENSEMBLE DE DIRECTION ASSISTÉE ÉLECTRIQUE
Abstract
(EN)
An electric power assisted steering assembly comprises a steering mechanism which operatively connects a steering wheel to the road wheels of a vehicle, a torque sensing means which is adapted to produce an output signal indicative of the torque applied to a portion of the steering mechanism by the driver, a signal processing means which is adapted to control the motor so as to cause the motor to apply a torque to the steering mechanism to assist the driver; and a compensation torque generating means which is adapted to combine a torque value representative of the motor applied torque with the output of the torque sensor to produce a compensation torque signal that is to be applied by the motor to the steering mechanism that at least partially compensates for any pull on the steering due to suspension misalignment.
(FR)
L'invention concerne un ensemble de direction assistée électrique qui comprend un mécanisme de direction qui relie de façon opérationnelle un volant de direction aux roues de route d'un véhicule, un moyen de détection de couple qui est adapté pour produire un signal de sortie indiquant le couple appliqué par un conducteur à une partie du mécanisme de direction, un moyen de traitement de signal qui est adapté pour commander le moteur afin de pousser le moteur à appliquer un couple au mécanisme de direction pour assister le conducteur ; et un moyen de générer un couple de compensation qui est adapté pour combiner une valeur de couple représentative du couple appliqué du moteur avec la sortie du capteur de couple pour produire un signal du couple de compensation qui doit être appliqué par le moteur au mécanisme de direction qui compense au moins partiellement toute traction sur la direction due au désalignement de suspension.
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