Double pinion steering gear with an electric motor

US9669865B2 · kind B2 · utility

Assignee

• THYSSENKRUPP PRESTA AKTIENGESELLSCHAFT · LI

Inventors

• Anatoli Schröder · Ludwigsburg, DE
• Kai Vohwinkel · Reichenbach, DE

Key dates

• Filing date: Jun 18, 2014
• Grant date: Jun 6, 2017
• Expiry date: Jun 18, 2034

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B62D5/0457
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A steering gear mechanism for motor vehicles may include a steering system housing in which a toothed rack is mounted and displaceable along a longitudinal axis. The toothed rack may be connected to steerable wheels of a motor vehicle and configured to pivot the steerable wheels. The toothed rack can include a first toothed segment that meshes with a first pinion of a pinion shaft, with the pinion shaft being connectable to a steering wheel via an input shaft. The toothed rack may further include a second toothed segment that is situated opposite the first toothed segment with respect to the longitudinal axis and engages with a second pinion. Further, an electric motor can drive the first pinion in a first direction, which by way of direct or indirect coupling causes the second pinion to rotate in a second direction opposite the first direction. The electric motor may drive a gear mechanism shaft that surrounds the pinion shaft and is connected to the pinion shaft by way of a gear mechanism.