Air temperature control system for vehicles

Details Air temperature control system for vehicles Air temperature control system for vehicles

1982-12-02

1985-09-10

Cline, William R.

Heat exchange

With alarm, indicator, signal, register, recorder, test or...

Remotely controlled inspection means

62226, 62229, 623234, 62243, 165 28, 165 30, 165 43, F25B 100, F25B 2900, B60H 300, B61D 2700

Patent

active

045400407

ABSTRACT:
An air cooling temperature control system for use in vehicles including a cooler having a compressor, a heater having an air-mix damper and a room air temperature regulator, in which feedback control is effected so that a room air temperature may coincide with a preset temperature value. The output of the heater is regulated to respond to sudden changes in the room air temperature by controlling the opening of the air-mix damper. The duty cycle of the compressor is regulated by a controller so as to respond to gradual changes in room air temperature while the output of the heater is at a low level and to incrementally decrease the duty cycle of the compressor when the output of the heater is above the low level, thereby driving the output of the heater down so as to minimize the counteracting effects of concurrent heating and cooling, so that the desired room air temperature is maintained with minimal energy.

REFERENCES:
patent: 4337818 (1982-07-01), Franz
patent: 4340113 (1982-07-01), Iwata et al.
patent: 4356705 (1982-11-01), Sutoh et al.
patent: 4358936 (1982-11-01), Ito et al.
patent: 4365663 (1982-12-01), Inoue et al.
patent: 4383574 (1983-05-01), Yoshioka
patent: 4408278 (1983-10-01), Saito et al.
patent: 4416324 (1983-11-01), Sutoh et al.
patent: 4476919 (1984-10-01), Akimoto et al.

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