Fault compensation method and fault compensation apparatus for a

Details Fault compensation method and fault compensation apparatus for a Fault compensation method and fault compensation apparatus for a

1996-05-20

1997-07-15

Joyce, Harold

Ventilation

Vehicle

Condensation preventer

B60H 100

Patent

active

056477945

ABSTRACT:
When a fault occurs in the setting unit for setting the position of an actuator or when the control unit for controlling a stepping motor actuator goes out of order, the mode switch door cannot be set to a foot mode or the like other than a ventilation mode and a defrost mode. Therefore, when a fault occurs in the built-in contacts of the actuator for driving the mode switch door or when the control unit for controlling the stepping motor actuator for driving the mode switch door goes out of order, another mode position can be set by moving the actuator to a ventilation mode position or a defrost mode position and then reversing it with the moved position as a starting point.

REFERENCES:
patent: 4591773 (1986-05-01), Numata
patent: 5369342 (1994-11-01), Rudzewicz et al.

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