US 10,246,121 B2Granted

Vehicle steering device

AssigneeHonda Motor Co., Ltd.

InventorsManabu Ikegaya, Kenichi Kirihara, Yoshito Nakamura

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Abstract

A vehicle steering device includes: steering reaction force generation device having a steering wheel and a steering reaction force motor; steering reaction force motor resolver for detecting steering angle; turning device having a steering motor and capable of turning steered wheels, in a state being mechanically disconnected from the steering reaction force generation device; steering motor resolver for detecting turning angle; drive control section for performing drive control of the steering motor; and vehicle speed sensor for detecting the vehicle speed of vehicle. The drive control section performs drive control of the steering motor if vehicle speed exceeds vehicle speed threshold for the first time after ignition switch is turned on and if specific phase shift based on type and magnitude of phase shift occurs.

Claims4

Dependent claims

A vehicle steering device, comprising:

a steering section having a steering member operated in turning steered wheels of a vehicle;
a steering angle detection section for detecting a steering angle of the steering member;
a turning section having a turning actuator for applying a turning force for turning the steered wheels and being capable of turning the steered wheels in a state that the turning section is mechanically disconnected from the steering section;
a turning angle detection section for detecting a turning angle of the steered wheels;
a control section for performing drive control of the turning actuator;
and
a vehicle speed detection section for detecting vehicle speed of the vehicle,
wherein if the vehicle speed exceeds a predetermined vehicle speed threshold for the first time after an ignition switch is turned on and if a specific phase shift related to correspondence relationship between the steering angle and the turning angle occurs, the control section performs drive control of the turning actuator to thereby correct the turning angle of the steered wheels such that the turning angle of the steered wheels matches the steering angle of the steering wheel.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/604,967Filed 25 May 2017
Priority: JP 2016-10654227 May 2016
Published: US 2017/0341679 A130 Nov 2017
Granted: 2 Apr 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

B62D 5/003
Mechanical components or aspects of steer-by-wire systems, not otherwise provided for in this maingroup: backup systems, e.g. for manual steering
B62D 5/001
Power-assisted or power-driven steering: mechanical components or aspects of steer-by-wire systems, not otherwise provided for in this maingroup
B62D 6/002
Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits: computing…
B62D 6/02
Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits: responsive…

Family

US 2017/0341679 A1Pre-grant publication · published 30 Nov 2017
US 10,246,121 B2This patent

From the US filing history. Foreign family members aren’t listed.

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