Actuating device and vehicle steering device comprising an electric engine and a rotor position sensor and a multiturn sensor

Patent metadata

Field	Value
Publication number	US-2020044591-A1
Application number	US-201916533181-A
Country	US
Kind code	A1
Filing date	Aug 6, 2019
Priority date	Aug 6, 2018
Publication date	Feb 6, 2020
Grant date	—

Abstract

A regulator may include an output element and an electric motor for driving the output element. The electric motor may have a rotor. A mechanical power transmission device may be located between the rotor of the electric motor and the output element. A rotor position sensor for determining a position of the rotor may be included. A multi-turn sensor may also be included, where the multi-turn sensor is configured to monitor rotation of at least one of the rotor and a rotating element of the mechanical power transmission device

First claim

We claim:

1 . A regulator comprising:
an output element; an electric motor for driving the output element, the electric motor having a rotor; a mechanical power transmission device between the rotor of the electric motor and the output element; a rotor position sensor for determining a position of the rotor; and a multi-turn sensor configured to monitor rotation of the rotor.

2 . The regulator according to claim 1 , wherein each of the rotor position sensor and the multi-turn sensor share a transmitter element.

3 . The regulator according to claim 2 , wherein the transmitter element is a permanent magnet.

4 . The regulator according to claim 1 , wherein the multi-turn sensor and the rotor position sensor form a sensor module.

5 . The regulator according to claim 1 , wherein the multi-turn sensor and the rotor position sensor are formed on the same semiconductor chip.

6 . The regulator according to claim 1 , wherein the output element does not have a position sensor.

7 . A motor vehicle steering device comprising:
the regulator according to claim 1 ; and a steering rod, wherein the steering rod forms the output element of the regulator for generating a steering movement of at least one vehicle wheel.

8 . The motor vehicle steering device according to claim 7 , wherein a mechanical connection is included between the output element and a steering wheel.

9 . The motor vehicle steering device according to claim 7 , wherein the motor vehicle steering device lacks a mechanical connection between the output element and a steering wheel.

10 . A regulator comprising:
an output element; an electric motor for driving the output element, the electric motor having a rotor; a mechanical power transmission device between the rotor of the electric motor and the output element; a rotor position sensor for determining a position of the rotor; and a multi-turn sensor configured to monitor rotation of a rotating element of the mechanical power transmission device.

11 . The regulator according to claim 10 , wherein each of the rotor position sensor and the multi-turn sensor share a transmitter element.

12 . The regulator according to claim 11 , wherein the transmitter element is a permanent magnet.

13 . The regulator according to claim 10 , wherein the multi-turn sensor and the rotor position sensor form a sensor module.

14 . The regulator according to claim 10 , wherein the multi-turn sensor and the rotor position sensor are formed on the same semiconductor chip.

15 . The regulator according to claim 10 , wherein the output element does not have a position sensor.

16 . A motor vehicle steering device comprising:
the regulator according to claim 10 ; and a steering rod, wherein the steering rod forms the output element of the regulator for generating a steering movement of at least one vehicle wheel.

17 . The motor vehicle steering device according to claim 16 , wherein a mechanical connection is included between the output element and a steering wheel.

18 . The motor vehicle steering device according to claim 16 , wherein the motor vehicle steering device lacks a mechanical connection between the output element and a steering wheel.

19 . A method, comprising:
forming a regulator, the regulator including: an output element; an electric motor for driving the output element, the electric motor having a rotor; a mechanical power transmission device between the rotor of the electric motor and the output element; a rotor position sensor for determining a position of the rotor; and a multi-turn sensor configured to monitor rotation of at least one of the rotor and a rotating element of the mechanical power transmission device.

20 . The method according to claim 19 , wherein each of the rotor position sensor and the multi-turn sensor share a transmitter element.

Assignees

• Zahnradfabrik Friedrichshafen

Inventors

• Herzog Stefan
• Herrmann Martin

Classifications

• H02P6/16

  Circuit arrangements for detecting position · CPC title

• B62D15/02

  Steering position indicators {; Steering position determination; Steering aids} · CPC title

• H02K7/116

  with gears · CPC title

• H02P21/06 Primary

  Rotor flux based control involving the use of rotor position or rotor speed sensors · CPC title

• B62D5/001

  Mechanical components or aspects of steer-by-wire systems, not otherwise provided for in this maingroup · CPC title