Method for activating and deactivating the four-wheel drive...

Details Method for activating and deactivating the four-wheel drive... Method for activating and deactivating the four-wheel drive...

2011-07-12

2011-07-12

Black, Thomas G (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Control of power distribution between vehicle axis or wheels

C701S050000, C701S070000, C180S233000, C180S245000, C180S247000, C074S034000

Reexamination Certificate

active

07979188

ABSTRACT:
A method for activating and deactivating the four-wheel drive of a service or a working vehicle not having interaxle differential locks. According to the method, the activation and deactivation of the four-wheel drive is derived from at least one of the following parameters, namely, the driving and load conditions of the vehicle (1), the vehicle speed and the output torque of the gearbox.

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