Vehicle air-conditioning system and control method

Details Vehicle air-conditioning system and control method Vehicle air-conditioning system and control method

1996-11-22

1998-02-17

Tanner, Harry B.

Refrigeration

With indicator or tester

Operatively correlated with automatic control

62163, 62131, 165204, B60H 100

Patent

active

057181209

ABSTRACT:
A vehicle air-conditioning system which operates in response to the manipulation of momentary switches is provided with discriminating means for discriminating whether any momentary switch is on at the time of system power-up. When the discriminating means finds that one or more momentary switches are on, the vehicle air-conditioning system is set to a predefined initial control state independent of contact information from such momentary switch or switches. As a result, at least the minimum temperature control required for occupant comfort can be secured when shorted contact sticking occurs in a momentary switch provided on an operation panel.

REFERENCES:
patent: 4688389 (1987-08-01), Iida
patent: 4762169 (1988-08-01), Andersen et al.
patent: 5230467 (1993-07-01), Kubsch et al.
patent: 5259211 (1993-11-01), Ikeda

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