# US 8,770,603 B2 · Divided roll stabilizer

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- Number: US 8,770,603 B2
- Document ID: US8770603B2
- Status: Granted
- Kind: B2
- Application number: 13/533,197
- Filed: 2012-06-26
- Published: 2013-01-10
- Granted: 2014-07-08
- Earliest claimed: 2011-07-07
- Assignees: Schaeffler Technologies AG & Co. KG
- Applicants: Bernd Wittmann; Ralf Mayer; Andrea Lottes; Norbert Hofmann
- Inventors: Bernd Wittmann; Ralf Mayer; Andrea Lottes; Norbert Hofmann
- Web page: https://patentgrep.com/patent/US8770603B2

## CPC

- B60G 17/019: characterised by the type of sensor or the arrangement thereof {(B60G17/01941 takes precedence)}
- B60G 21/0555: {including an actuator inducing vehicle roll}
- B60G 2400/98: Stabiliser movement
- B60G 2401/17: Magnetic/Electromagnetic
- B60G 2600/22: Magnetic elements
- B60G: VEHICLE SUSPENSION ARRANGEMENTS (air-cushion vehicles B60V; {cycle suspensions B62K25/00})

## Abstract

A divided roll stabilizer of a motor vehicle between whose two stabilizer parts (2a) an actuator (1) can be arranged for a torsion of the stabilizer parts (2a). At least one of the stabilizer parts (2a) is provided with a torsion transmitting connecting part (4a) for connection to the actuator (1), and the connecting part (4a) is magnetically coded.

## Claims

### Claim 1

A divided roll stabilizer of a motor vehicle, comprising two stabilizer parts between which an actuator is adapted to be arranged for torsioning of the stabilizer parts, wherein at least one of the stabilizer parts is provided with a torsion transmitting connecting part for connecting the actuator, and the connecting part is magnetically coded, a sensor for non-contact measurement of a torsion acting in the stabilizer part is provided, the sensor utilizes the magnetically coded connecting part as a primary sensor and further comprises a magnetic field sensor as a secondary sensor that converts changes in a magnetic field of the primary sensor into an electrical signal, and the connecting part transmits a full torsion between the actuator and the connected stabilizer part.

### Claim 2 (depends on 1)

The divided roll stabilizer according to claim 1, wherein the connecting part is locked in rotation on one side to the stabilizer part and is locked in rotation on the other side with the actuator.

### Claim 3 (depends on 1)

The divided roll stabilizer according to claim 1, wherein the connecting part is made from ferromagnetic material.

### Claim 4 (depends on 1)

The divided roll stabilizer according to claim 1, wherein the actuator is located between the two stabilizer parts for torsion of the stabilizer parts.

### Claim 5 (depends on 1)

The divided roll stabilizer according to claim 1, wherein the connecting part includes a flange for connection to the actuator.

### Claim 6 (depends on 1)

The divided roll stabilizer according to claim 1, wherein the magnetically coded connecting part has a hollow construction.

### Claim 7

A divided roll stabilizer of a motor vehicle, comprising two stabilizer parts between which an actuator is adapted to be arranged for torsioning of the stabilizer parts, wherein at least one of the stabilizer parts is provided with a torsion transmitting connecting part for connecting the actuator, and the connecting part is magnetically coded, wherein a sensor for non-contact measurement of a torsion acting in the stabilizer part is provided, the sensor utilizes the magnetically coded connecting part as a primary sensor and further comprises a magnetic field sensor as a secondary sensor that converts changes in a magnetic field of the primary sensor into an electrical signal, wherein the stabilizer parts are each supported for rotation by a stabilizer bearing and are each provided with one of the connecting parts for connecting to the actuator, and at least one of the connecting parts forms the primary sensor.

### Claim 8 (depends on 7)

The divided roll stabilizer according to claim 7, wherein the stabilizer parts are each provided with a magnetically coded connecting part for connecting to the actuator, and at least one of the two magnetically coded connecting parts forms the primary sensor.

### Claim 9

A divided roll stabilizer of a motor vehicle, comprising two stabilizer parts between which an actuator is adapted to be arranged for torsioning of the stabilizer parts, wherein at least one of the stabilizer parts is provided with a torsion transmitting connecting part for connecting the actuator, and the connecting part is magnetically coded, wherein a sensor for non-contact measurement of a torsion acting in the stabilizer part is provided, the sensor utilizes the magnetically coded connecting part as a primary sensor and further comprises a magnetic field sensor as a secondary sensor that converts changes in a magnetic field of the primary sensor into an electrical signal, wherein the magnetically coded connecting part has a hollow construction and the secondary sensor is arranged in the hollow connecting part.