Electric power steering apparatus

Invention Grant

US09718492B2 Electric power steering apparatus 有权

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Patent Title: Electric power steering apparatus
Application No.: US14176719

Application Date: 2014-02-10
Publication No.: US09718492B2

Publication Date: 2017-08-01
Inventor: Terutaka Tamaizumi , Hirozumi Eki , Masayuki Kita , Isao Namikawa
Applicant: JTEKT CORPORATION
Applicant Address: JP Osaka
Assignee: JTEKT CORPORATION
Current Assignee: JTEKT CORPORATION
Current Assignee Address: JP Osaka
Agency: Oliff PLC
Priority: JP2013-037091 20130227
Main IPC: B62D5/04
IPC: B62D5/04 ; B62D6/04

Abstract:

An end determination unit determines that a steering apparatus is in an end touching state when an angle deviation, which is a difference between an actual turning angle and a target turning angle, exceeds a threshold. This angle deviation exceeds the threshold before a large axial force is generated in a steering shaft. Accordingly, is it possible to determine that the steering apparatus is in the end touching state more quickly.

Public/Granted literature

US20140238768A1 ELECTRIC POWER STEERING APPARATUS Public/Granted day:2014-08-28

Information query

Espacenet

IPC分类:

B	作业；运输
B62	无轨陆用车辆
B62D	机动车；挂车（农用机械或机具的转向机构或在所要求轨道上的引导装置入A01B69/00；车轮，脚轮，车轴，提高车轮的附着力入B60B；车用轮胎，轮胎充气或轮胎的更换入B60C；拖有挂车的牵引车或类似车辆之间的连接入B60D；轨道和道路两用车辆，两栖或可转换的车辆入B60F；悬架装置的配置入B60G；加热、冷却、通风或其他空气处理设备入B60H；车窗，挡风玻璃，非固定车顶，门或类似装置，车辆不用时的护套入B60J；动力装置的布置，辅助驱动装置，传动装置，控制机构，仪表或仪表板入B60K；电动车辆的电力装备或动力装置入B60L；电动车辆的电源线入B60M；其他类目不包含的乘客用设备入B60N；适用于货运或装载特殊货物或物体的入B60P；用于一般车辆信号或照明装置的布置，其安装或支承或者其电路入B60Q；其他类目不包含的车辆，车辆配件或车辆部件入B60R；其他类目不包含的保养，清洗，修理，支承，举升或调试入B60S；制动器布置，制动控制系统或其部件入B60T；气垫车入B60V；摩托车及其所用附件入B62J，B62K；车辆试验入G01M）
B62D5/00	助力的或动力驱动的转向机构（用于不可偏转车轮的入B62D11/00；一般液压伺服马达入F15B）
B62D5/04	.电力的，例如使用伺服电动机与转向器连接或构成转向器的零件