HEATING SYSTEM
First Claim
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1. A heating system for warming an occupant seated on a seat of a vehicle, the heating system comprising:
- a heating element disposed in the seat;
heater electrodes connected to the heating element;
a sensor electrode disposed in the seat;
a supply unit that supplies power to the heating element;
a connection unit that intermittently connects the supply unit with the heater electrodes;
a measurement unit that measures an impedance between the sensor electrode and the vehicle when the supply unit is not connected to the heater electrodes; and
a detection unit that detects the occupant seated on the seat based on the impedance measured by the measurement unit.
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Abstract
A seat heater has heater electrodes in a film shape and a sensor electrode in a film shape. When detecting an occupant through the sensor electrode, the heater electrodes are disconnected from a heater unit to cause those electrodes to be substantially insulated from a vehicle. This makes it possible to detect the occupant seated on a seat without being affected by the heater electrodes. According to such a structure, it becomes possible to warm the occupant and to precisely detect the occupant.
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Citations
12 Claims
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1. A heating system for warming an occupant seated on a seat of a vehicle, the heating system comprising:
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a heating element disposed in the seat; heater electrodes connected to the heating element; a sensor electrode disposed in the seat; a supply unit that supplies power to the heating element; a connection unit that intermittently connects the supply unit with the heater electrodes; a measurement unit that measures an impedance between the sensor electrode and the vehicle when the supply unit is not connected to the heater electrodes; and a detection unit that detects the occupant seated on the seat based on the impedance measured by the measurement unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification