Steer-by-wire steering system having a spindle drive

Invention Grant

US11623682B2 Steer-by-wire steering system having a spindle drive 有权

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Patent Title: Steer-by-wire steering system having a spindle drive
Application No.: US16973484

Application Date: 2019-05-21
Publication No.: US11623682B2

Publication Date: 2023-04-11
Inventor: Stefan Wenk
Applicant: ZF Friedrichshafen AG
Applicant Address: DE Friedrichshafen
Assignee: ZF Friedrichshafen AG
Current Assignee: ZF Friedrichshafen AG
Current Assignee Address: DE Friedrichshafen
Agency: Finch & Maloney PLLC
Priority: DE102018209819.0 20180618
International Application: PCT/EP2019/063050 WO 20190521
International Announcement: WO2019/242963 WO 20191226
Main IPC: B62D5/04
IPC: B62D5/04 ; F16H25/22 ; F16H25/20

Steer-by-wire steering system having a spindle drive

Abstract:

A spindle drive (20) for an actuator of a steer-by-wire steering system (10). The spindle drive has a linearly displaceable threaded spindle (27). The spindle drive (20) is in the form of a roller screw drive. The roller screw drive has a first efficiency in the driving direction and a second different efficiency in the reverse-driving direction.

Public/Granted literature

US20210237795A1 STEER-BY-WIRE STEERING SYSTEM HAVING A SPINDLE DRIVE Public/Granted day:2021-08-05

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