Steering assistance device and steering assistance method

US10875570B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10875570-B2
Application numberUS-201716322886-A
CountryUS
Kind codeB2
Filing dateAug 2, 2017
Priority dateAug 2, 2016
Publication dateDec 29, 2020
Grant dateDec 29, 2020

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A steering assistance device includes: a steering angle sensor for detecting a steering angle of a vehicle; a motor for performing steering assistance of the vehicle by applying torque to a steering shaft; and a control unit for increasing increases the amount of steering assistance by the motor in case where the detected steering angle is included in an angular range corresponding to a steering play segment in which steering will not alter the direction of wheels of the vehicle as compared with a case where the detected steering angle is not included in an angular range.

First claim

Opening claim text (preview).

The invention claimed is: 1. A steering assistance device comprising: a steering angle detection unit, which detects a steering angle of a vehicle; a steering assistance unit, which performs steering assistance of the vehicle by applying torque to a steering shaft; and a control unit, which increases the amount of steering assistance performed by the steering assistance unit as compared with a case where the steering angle is not included in the angular range, in case where the detected steering angle is included in an angular range corresponding to a steering play segment where the steering does not change the direction of wheels of the vehicle. 2. The steering assistance device according to claim 1 , wherein the control unit performs steering assistance by the steering assistance unit in case where the detected steering angle is included in the angular range, and stops steering assistance by the steering assistance unit in case where the detected steering angle is not included in the angular range. 3. The steering assistance device according to claim 1 , wherein the control unit increases the steering force by the steering assistance unit in case where the detected steering angle is included in the angular range, and reduces the steering force by the steering assistance unit in case where the detected steering angle is not included in the angular range. 4. The steering assistance device according to claim 1 , wherein the control unit causes the steering assistance unit to perform steering assistance such that the vehicle travels at the center of a lane, and causes, when the detected steering angle is included in the angular range in case where the vehicle travels at the center of the lane, the steering assistance unit to increase the amount of steering assistance as compared with a case where the detected steering angle is not included in the angular range. 5. A steering assistance method comprising: detecting a steering angle of a vehicle; and performing steering assistance of the vehicle by applying, to a steering shaft, a torque larger than a case where the detected steering angle is not included in the angular range, in case where the detected steering angle is included in an angular range corresponding to a steering play segment where the steering does not change the direction of wheels of the vehicle.

Assignees

Inventors

Classifications

  • B62D5/0463Primary

    calculating assisting torque from the motor based on driver input · CPC title

  • Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits (means for initiating a change in direction B62D1/00; steering valves B62D5/06; combined with means for inclining the vehicle body or wheels on bends B62D9/00) · CPC title

  • Supply of pressurised fluid for steering also supplying other consumers {; control thereof} · CPC title

  • B62D5/04Primary

    electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear · CPC title

  • Active steering aids, e.g. helping the driver by actively influencing the steering system after environment evaluation (B62D1/28 takes precedence) · CPC title

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What does patent US10875570B2 cover?
A steering assistance device includes: a steering angle sensor for detecting a steering angle of a vehicle; a motor for performing steering assistance of the vehicle by applying torque to a steering shaft; and a control unit for increasing increases the amount of steering assistance by the motor in case where the detected steering angle is included in an angular range corresponding to a steerin…
Who is the assignee on this patent?
Isuzu Motors Ltd
What technology area does this patent fall under?
Primary CPC classification B62D5/0463. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Dec 29 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).