Method and device for determining a position of a part of a motor vehicle seat which can be displaced by means of a drive device
First Claim
1. A method for determining a position of a part of a motor vehicle seat which is displaceable by an electric drive device elastically coupled to the displaceable part so that an at least temporarily asynchronous movement occurs between the electric drive device and the displaceable part, the method comprising:
- determining the position of the displaceable part by evaluating a signal generated in dependence on a drive movement of the electric drive device;
evaluating a parameter comprising at least one of the torque of the drive device and at least one parameter of the electric drive device correlating with the torque;
using the evaluated parameter to correct a position error caused by the asynchronous movement between the electric drive device and the displaceable part.
1 Assignment
0 Petitions
Accused Products
Abstract
A motor seat device includes a drive device for displacing a part of the seat in a particular direction. Data for operating the drive device in reaction to a presetting process is stored in a pre-setting memory. A memory drive device controls the drive device according to this operating data. The drive device is further controlled by having a control mechanism process the operating data issued from the drive device during its inertia rotation. The drive device is elastically coupled to the displaceable part so that an at least temporarily asynchronous movement can occur between the drive device and the displaceable part. The position of the displaceable part is determined by evaluating a signal generated by a drive movement of the drive device. The torque of the drive device or a parameter correlating thereto is evaluated to correct a position error caused by the asynchronous movement.
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Citations
22 Claims
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1. A method for determining a position of a part of a motor vehicle seat which is displaceable by an electric drive device elastically coupled to the displaceable part so that an at least temporarily asynchronous movement occurs between the electric drive device and the displaceable part, the method comprising:
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determining the position of the displaceable part by evaluating a signal generated in dependence on a drive movement of the electric drive device; evaluating a parameter comprising at least one of the torque of the drive device and at least one parameter of the electric drive device correlating with the torque; using the evaluated parameter to correct a position error caused by the asynchronous movement between the electric drive device and the displaceable part. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 20, 21, 22)
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18. A device for determining a position of a part of a motor vehicle seat which can be displaced by an electric drive device elastically coupled to the displaceable part so that an asynchronous movement can occur at lest temporarily between the electric drive device and the displaceable part, the device comprising:
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an evaluation device for determining the position of a displaceable part by evaluating a signal generated in dependence on a drive movement of the electric drive device, and wherein the evaluation device evaluates additionally a parameter comprising at least one of the torque and a parameter of the electric drive device correlating with the torque, for correcting a position error caused by an asynchronous movement between the electric drive device and the displaceable part; and a position error correcting device correcting a position error determined from the evaluation of a parameter comprising at least one of the torque of the drive device and a parameter of the drive device correlating with the torque. - View Dependent Claims (19)
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Specification