Device for and method of applying voltage to a heating resistor

Details Device for and method of applying voltage to a heating resistor Device for and method of applying voltage to a heating resistor

1990-04-27

1991-06-18

Paschall, M. H.

Electric heating

Heating devices

With current connection and/or disconnection means

219202, 219203, 219494, 219497, 219485, 123179B, H05B 102

Patent

active

050251368

ABSTRACT:
Disclosed is a device for and a method of applying output voltage from a power generator to a heating resistor in a motor vehicle. During the standstill condition of the vehicle the heating resistor is connected directly to the generator and a power supply network connected parallel to the terminals of a battery, is disconnected from the generator. The output voltage of the generator is regulated to increased values to achieve a higher efficiency in the heating resistor. During the travel of the motor vehicle, the heating resistor is connected in series with the power supply network and a regulated voltage from the power generator is applied across the series connection. The output voltage is regulated such that a nominal voltage is maintained at the power supply network. The switchover between the standstill and running operational conditions is provided by two switching devices which are controlled by a control device in dependency on operational conditions of the motor vehicle.

REFERENCES:
patent: 4084126 (1978-04-01), Clements
patent: 4673797 (1987-06-01), Weiricle
patent: 4730097 (1988-03-01), Campbell
patent: 4862055 (1989-08-01), Maroyama et al.
patent: 4884018 (1989-11-01), Meure et al.
patent: 4902874 (1990-02-01), Tachimori et al.

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