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1. (EP1905671) STEERING APPARATUS FOR VEHICLE

Office : European Patent Office
Application Number: 06781010 Application Date: 12.07.2006
Publication Number: 1905671 Publication Date: 02.04.2008
Publication Kind : B1
Prior PCT appl.: Application Number:JP2006313840 ; Publication Number: Click to see the data
IPC:
B62D 6/00
B62D 5/04
B62D 101/00
B62D 109/00
B62D 111/00
B62D 113/00
B62D 119/00
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
D
MOTOR VEHICLES; TRAILERS
6
Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
D
MOTOR VEHICLES; TRAILERS
5
Power-assisted or power-driven steering
04
electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
D
MOTOR VEHICLES; TRAILERS
101
Road speed
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
D
MOTOR VEHICLES; TRAILERS
109
Presence, absence or inactivity of driver or operator, e.g. by sensing the operation of the clutch, brake or throttle
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
D
MOTOR VEHICLES; TRAILERS
111
Forces disturbing the intended course of the vehicle, e.g. forces acting transversely of the direction of travel
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
D
MOTOR VEHICLES; TRAILERS
113
Position of parts of the steering mechanism, e.g. the steered wheels or the steering wheel
B PERFORMING OPERATIONS; TRANSPORTING
62
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
D
MOTOR VEHICLES; TRAILERS
119
Steering wheel torque
CPC:
B62D 5/001
B62D 5/003
Applicants: JTEKT CORP
Inventors: ITO TADAO
OSANAI AKIRA
HIGASHI KENJI
Priority Data: 2005210592 20.07.2005 JP
2006313840 12.07.2006 JP
Title: (DE) LENKVORRICHTUNG FÜR EIN FAHRZEUG
(EN) STEERING APPARATUS FOR VEHICLE
(FR) DISPOSITIF DE DIRECTION DE VÉHICULE
Abstract: front page image
(EN) A steering apparatus for a vehicle capable of executing a steer-by-wire (SBW) mode in which road wheels are steered by a steering mechanism mechanically disconnected with a steering device. The steering apparatus comprises: a connecting mechanism which can connect the steering device and the steering mechanism mechanically; and an SBW control unit which sets the connecting mechanism to a disconnected state to control the steering mechanism based on an operating amount of the steering device under the steer-by-wire mode, and sets the connecting mechanism to a connected state to switch a steering mode from the steer-by-wire mode to a steer-by-wire backup mode when it has been determined that the steer-by-wire mode cannot be executed properly. The connecting mechanism is set to the disconnected state while being energized and set to the connected state while being non-energized. The SBW control unit checks whether or not the steer-by-wire mode can be executed properly at start of engine and always during operation of engine. Therefore, an SBW backup system can be activated unfailingly when the system is out of order.
Also published as:
US20090260913CN101223074WO/2007/010790