Seat control electronic system and method for a motor-driven motor vehicle adjusting device
First Claim
1. A seat control electronic system having a trapping prevention function for a motor driven seat adjusting device, with the seat control electronic system being configuredto determine an adjusting movement of a drive from at least one detected characteristic variable of the drive, andto determine a trapping instance from measured values of the characteristic variable of a first adjustment operation and from measured values of the characteristic variable of a second and/or further brief adjustment operations during a plurality of brief adjustment operations of the drive in the same adjustment direction,to determine a first total load exerted by the drive during the first adjustment operation,to determine a second total load exerted by the drive after an adjustment break for the second adjustment operation in the same adjustment direction,to not reject an evaluation of the determined first total load if an adjustment path or adjustment time of the second adjustment operation falls below a threshold,to stop the drive or to reverse the adjustment direction of the drive if a trapping instance is detected as a function of an evaluation of the first total load and the second total load,to determine and store a second nominal load first during a start phase of the second adjustment operation from the second nominal load if the adjustment path of the second adjustment operation exceeds the threshold, andto determine whether trapping has occurred during a monitoring phase from a comparison between the second nominal load and the second total load which varies during the second adjustment operation,wherein, in order to delete the evaluation after the threshold is exceeded, the seat control electronic system is configured to replace the determined first nominal load with the second nominal load for the further determination of a trapping instance.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention relates to a seat control electronic system for controlling a drive of a motor vehicle seat which is configured for detecting a characteristic variable of the drive during several short actuations of the drive, and to evaluate variables respectively associated with several short actuations, and to determine a blocking function according to the evaluations.
-
Citations
11 Claims
-
1. A seat control electronic system having a trapping prevention function for a motor driven seat adjusting device, with the seat control electronic system being configured
to determine an adjusting movement of a drive from at least one detected characteristic variable of the drive, and to determine a trapping instance from measured values of the characteristic variable of a first adjustment operation and from measured values of the characteristic variable of a second and/or further brief adjustment operations during a plurality of brief adjustment operations of the drive in the same adjustment direction, to determine a first total load exerted by the drive during the first adjustment operation, to determine a second total load exerted by the drive after an adjustment break for the second adjustment operation in the same adjustment direction, to not reject an evaluation of the determined first total load if an adjustment path or adjustment time of the second adjustment operation falls below a threshold, to stop the drive or to reverse the adjustment direction of the drive if a trapping instance is detected as a function of an evaluation of the first total load and the second total load, to determine and store a second nominal load first during a start phase of the second adjustment operation from the second nominal load if the adjustment path of the second adjustment operation exceeds the threshold, and to determine whether trapping has occurred during a monitoring phase from a comparison between the second nominal load and the second total load which varies during the second adjustment operation, wherein, in order to delete the evaluation after the threshold is exceeded, the seat control electronic system is configured to replace the determined first nominal load with the second nominal load for the further determination of a trapping instance.
-
7. A seat control electronic system for controlling a drive of a motor vehicle seat, which is configured
to detect a characteristic variable of the drive during a plurality of brief actuation operations of the drive, to evaluate the characteristic variable which is in each case associated with the plurality of brief actuation operations, and to determine a trapping instance as a function of these evaluations of a plurality of actuation operations.
-
8. A method for controlling a motor-driven motor vehicle adjusting device, wherein a total load that is exerted by the drive is derived from at least one detected characteristic variable of a drive in order to monitor for a trapping instance, the method comprising
determining a first total load during a first adjustment operation, determining a second total load after an adjustment break in the event of a second adjustment operation in the same adjustment direction, not rejecting an evaluation of the determined first total load if an adjustment path or adjustment time of the second adjustment operation falls below a threshold, stopping the drive or reversing the adjustment direction of the drive if a trapping instance is detected as a function of an evaluation of the first total load and the second total load, determining and storing a second nominal load first during a start phase of the second adjustment operation from the second nominal load if the adjustment path of the second adjustment operation exceeds the threshold, and determining whether trapping has occurred during a monitoring phase from a comparison between the second nominal load and the second total load which varies during the second adjustment operation, wherein, in order to delete the evaluation after the threshold is exceeded, the seat control electronic system is configured to replace the determined first nominal load with the second nominal load for the further determination of a trapping instance.
Specification