Utilizing Vehicle Seat Adjustment Motor to Detect, Weigh and Classify the Seat Occupants

Paper #:
  • 2016-01-0100

Published:
  • 2016-04-05
DOI:
  • 10.4271/2016-01-0100
Citation:
Hingane, S., "Utilizing Vehicle Seat Adjustment Motor to Detect, Weigh and Classify the Seat Occupants," SAE Technical Paper 2016-01-0100, 2016, https://doi.org/10.4271/2016-01-0100.
Pages:
4
Abstract:
High-end vehicles with latest technology and autonomous driving experience have to bear the cost of increasing number of sensors on-board. It would be beneficial to reduce some of the sensors in the vehicle and make use of other available resources, retaining the same functionality. This paper discusses a novel technique of estimating the weight of seat occupant from an already existing DC motor without using additional pressure sensors. Passenger weight information is important for seat-belt reminder system as well as supplemental restraint system that will decide the air-bag deployment. The mathematical model for a series-type DC motor is analyzed and simulated using MATLAB. Further, results of the experiment performed on a lower capacity motor are shared and compared with the simulation results. Formulating a linear relation gives a possibility to develop a device for occupant weight measurement inside the high-end vehicles.
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