POSITION DETECTION ARRANGEMENT FOR A FUNCTIONAL ELEMENT WHICH CAN BE POSITIONED BY A MOTOR IN A MOTOR VEHICLE
First Claim
1. Position detection arrangement for a functional element which can be positioned by a motor in a motor vehicle, comprising:
- a drive arrangement coupled via a drive train to the functional element for enabling the functional element to be positioned by a motor, two incremental rotary transducers assigned to the drive train, and a control means which is coupled to the rotary transducers, wherein the drive arrangement is made such that an offset arises between rotary transducer signals of the two rotary transducers and wherein the control means determines the absolute position of the functional element from said offset.
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Accused Products
Abstract
A first position detection arrangement for a functional element (1) which can be positioned by a motor in a motor vehicle, a drive arrangement (2) being coupled via a drive train (3) to the functional element (1) and the functional element (1) thus being positionable by a motor, there being two incremental rotary transducers (4, 5) which are assigned to the drive train (3) and there being a control (6) which is coupled to the rotary transducers (4, 5). It is suggested that the arrangement is made such that, when the functional element (1) is being positioned, an offset arises between the rotary transducer signals of the two rotary transducers (4, 5), the control means (6) being designed such that it determines the absolute position of the functional element (1) from the offset.
21 Citations
33 Claims
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1. Position detection arrangement for a functional element which can be positioned by a motor in a motor vehicle, comprising:
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a drive arrangement coupled via a drive train to the functional element for enabling the functional element to be positioned by a motor, two incremental rotary transducers assigned to the drive train, and a control means which is coupled to the rotary transducers, wherein the drive arrangement is made such that an offset arises between rotary transducer signals of the two rotary transducers and wherein the control means determines the absolute position of the functional element from said offset. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. Drive unit for a positionable functional element, comprising
a drive arrangement for motorized positioning of the functional element and a position detection arrangement for detecting the position of the functional element, wherein the drive arrangement, in an installed state, is coupled via a drive train to the functional element, wherein two incremental rotary transducers are assigned to the drive train and wherein a control means is coupled to the rotary transducers, wherein an offset is produced between rotary transducer signals of the rotary transducers when the functional element is being positioned and wherein the control means determines the absolute position of the functional element from the offset between rotary transducer signals.
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33. Functional unit in a motor vehicle, comprising:
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a functional element which is positioned by a motor, a drive arrangement and a position detection arrangement for detecting the position of the functional element, wherein the drive arrangement is coupled via a drive train to the functional element via which the functional element is positionable by a motor, wherein two rotary transducers are assigned to the drive train, wherein a control means is coupled to the rotary transducers, wherein an offset is produced between rotary transducer signals of the rotary transducers when the functional element is being positioned and wherein the control means determines the absolute position of the functional element from the offset between rotary transducer signals.
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Specification