# US 7,610,827 B2 · Adjusting device for a transmission

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- Number: US 7,610,827 B2
- Document ID: US7610827B2
- Status: Granted
- Kind: B2
- Application number: 12/020,323
- Filed: 2008-01-25
- Published: 2008-10-02
- Granted: 2009-11-03
- Earliest claimed: 2005-07-26
- Assignees: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
- Inventors: Wolfgang Doerr; Zoltán Skriba
- Web page: https://patentgrep.com/patent/US7610827B2

## CPC

- F16H 59/70: dependent on the ratio established
- G01D 2205/775: Tapered profiles
- Y10T 74/19251: Control mechanism
- Y10T 74/20177: Particular element [e.g., shift fork, template, etc.]
- F16H: GEARING
- G01D: MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

An adjusting device for a transmission, such as a motor vehicle transmission is described. The transmission has at least one moveable adjusting element, at least two sensors for detecting a position of the at least one moveable adjusting element, and a code path of the at least one moveable adjusting element having sections of different heights which are provided to be scanned by the at least two sensors, the sections of the code path of different heights being arranged at least two-dimensionally. The at least two sensors are arranged parallel to one another.

## Claims

### Claim 1

An adjusting device for a transmission, comprising:
at least one moveable adjusting element:
at least two sensors, each for detecting a position of a corresponding one of the at least one moveable adjusting element; and
a code path on each of the at least one moveable adjusting element, having sections of different heights which are provided to be scanned by a corresponding one of the at least two sensors, the sections of the code path of different heights being arranged at least two-dimensionally to vary in directions perpendicular to one another,
wherein the at least two sensors are arranged parallel to one another.

### Claim 2 (depends on 1)

The adjusting device as claimed in claim 1, wherein the at least one adjusting element is adapted to execute a translational and a rotational movement, thereby both an angular measurement and a linear displacement measurement taking place via the corresponding one of the at least two sensors.

### Claim 3 (depends on 1)

The adjusting device as claimed in claim 1, wherein the code path is one of coupled mechanically to the at least one adjusting element and arranged thereon.

### Claim 4 (depends on 1)

The adjusting device as claimed in claim 1, wherein at least some sections of the code path are disposed in an oil chamber of the transmission.

### Claim 5 (depends on 1)

The adjusting device as claimed claim 1, wherein at least some sections of the at least two sensors are provided to be arranged outside an oil chamber of the transmission.

### Claim 6 (depends on 2)

The adjusting device as claimed in claim 2, wherein the angular positions of a selector lever and of a shift lever and the position of at least one shift fork of the transmission are detected with the at least two sensors.

### Claim 7 (depends on 1)

The adjusting device as claimed in claim 1, wherein the at least two sensors are assigned a plurality of at least similar evaluation circuits.

### Claim 8 (depends on 1)

The adjusting device as claimed in claim 1, wherein at least some sections of the code path comprise a cam path.

### Claim 9 (depends on 1)

The adjusting device as claimed in claim 1, wherein at least some sections of the code path comprise a stepless code path.

### Claim 10 (depends on 1)

The adjusting device as claimed in claim 1, wherein the sections of different heights are scanned mechanically by a scanning element coupled to each of the at least two sensors.

### Claim 11 (depends on 10)

The adjusting device as claimed in claim 10, wherein the at least two sensors have a moveable sensor element which is at least one of coupled mechanically to and formed integrally with the scanning element.

### Claim 12 (depends on 10)

The adjusting device as claimed in claim 10, wherein the scanning element is prestressed in the direction of the cam path.

### Claim 13 (depends on 10)

The adjusting device as claimed in claim 10, wherein the at least two sensors are assigned a corresponding plurality of cam paths having sections of different heights, and a corresponding plurality of scanning elements, the plurality of cam paths being designed to produce comparable stroke movements for the scanning elements.

### Claim 14 (depends on 10)

The adjusting device as claimed in claim 10, wherein the cam path forms at least one catch.

### Claim 15 (depends on 10)

The adjusting device as claimed in claim 10, wherein the scanning element simultaneously forms a latching element.

### Claim 16 (depends on 1)

The adjusting device as claimed in claim 1, wherein the at least two sensors is an inductive displacement sensor.

### Claim 17 (depends on 1)

The adjusting device as claimed in claim 1, wherein the sections of different heights are scanned without contact by the at least two sensors.

### Claim 18 (depends on 17)

The adjusting device as claimed in claim 17, wherein the at least two sensor comprise a Hall sensor.

### Claim 19 (depends on 1)

The adjusting device as claimed in claim 1, wherein the transmission is a motor vehicle transmission.
