| 摘要 |
PURPOSE: A cooling fan is controlled to drive a cooling fan by a wheel speed signal when a coolant temperature sensor and a car speed sensor are out of order. CONSTITUTION: A method for controlling driving of a cooling fan comprises a step of deciding disorder of a coolant temperature sensor and a car speed sensor(S120,S130). If the disorder is decided, a formula to detect a wheel speed is used to calculate the car speed(S131,S132)). A control signal is outputted to control the driving of the cooling fan(S152,S151).
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