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Sensor system for detecting the adjustment position of a vehicle seat

  • US 10,336,273 B2
  • Filed: 03/13/2017
  • Issued: 07/02/2019
  • Est. Priority Date: 03/11/2016
  • Status: Active Grant
First Claim
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1. A sensor system for detecting the adjustment position of a vehicle seat, by which a relative adjustment of an at least partially ferritic upper rail, moveable lengthwise along a longitudinal extension of an at least partially ferritic stationary lower rail, at least in two adjustment positions, namely a forward adjustment position and a rearward adjustment position, will be detected, the sensor system comprising:

  • a Hall sensor, and a first preloaded magnet, free of flux concentrators and shielding sheets, whereby the Hall sensor and the first preloaded magnet are arranged along a longitudinal extension of the upper rail that is moveable lengthwise in such a way that during an adjustment of the upper rail relative to the stationary lower rail, passage of a free longitudinal end of the lower rail will be monitored and will result in a change of an output signal of the Hall sensor corresponding to a change from the forward adjustment position to the rearward adjustment position of the vehicle seat and vice versa, the sensor system being configured in such a way that in the unmounted state, and output signal corresponding to a reatward adjustment position of the vehicle seat will be generated at the Hall sensor.

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