Control apparatus for air conditioning unit in motor vehicle

Details Control apparatus for air conditioning unit in motor vehicle Control apparatus for air conditioning unit in motor vehicle

1994-12-28

1996-10-08

Joyce, Harold

Ventilation

Vehicle

Having automatic control means

165 43, 165267, B60H 132

Patent

active

055625380

ABSTRACT:
When a battery charger supplying external power to a vehicle air conditioning unit is detected as being disconnected by a connection sensor, a central processing unit stops operating the air conditioning unit upon elapse of a predetermined time after the detected disconnection. When a start signal is inputted from an ignition switch within the predetermined time, the central processing unit switches to a normal air conditioning mode to continue operating the air conditioning unit without interruption. The operation sequence is effective to prevent the energy stored in a battery as an internal power source from being unduly wasted, and to switch smoothly to the normal air conditioning mode.

REFERENCES:
patent: 4489242 (1984-12-01), Worst
patent: 5305613 (1994-04-01), Hotta et al.
patent: 5325912 (1994-07-01), Hotta et al.
patent: 5330385 (1994-07-01), Hotta et al.

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