Occupant recognition system for vehicles
First Claim
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1. An occupant recognition system for vehicles comprising:
- at least one pressure sensor disposed adjacent a foam vehicle seat;
at least one temperature sensor spaced from said seat and operative to monitor ambient air temperature within said vehicle; and
an electronic control and evaluation unit connected to said sensors and operative to match the time behavior of sensed changes in the ambient air temperature to the time behavior of the temperature prevailing in the region of the pressure sensor.
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Abstract
An occupant recognition system for vehicles comprises at least one pressure sensor arranged beneath the foam of a vehicle seat, at least one temperature sensor and an electronic control and/or evaluation unit to which the sensors are connected. Means are provided to match the time behavior, in particular the time behavior present on changes in the ambient temperature, of the output signal of the temperature sensor arranged at a distance from the pressure sensor or from the seat foam to the time behavior of the temperature prevailing in the region of the pressure sensor or of the seat foam.
27 Citations
17 Claims
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1. An occupant recognition system for vehicles comprising:
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at least one pressure sensor disposed adjacent a foam vehicle seat; at least one temperature sensor spaced from said seat and operative to monitor ambient air temperature within said vehicle; and an electronic control and evaluation unit connected to said sensors and operative to match the time behavior of sensed changes in the ambient air temperature to the time behavior of the temperature prevailing in the region of the pressure sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A vehicle occupant recognition system comprising:
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at least one pressure sensor adapted to be disposed adjacent a vehicle foam seat cushion; at least one temperature sensor adapted to be spaced from said foam seat cushion and operative to monitor ambient temperature within said vehicle and to generate an output signal in response thereto; and a control unit in circuit with said sensors operative to match the time behavior of said temperature sensor output signal to the time behavior of the temperature prevailing in a region of the seat foam adjacent said pressure sensor.
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Specification