TRUCK WITH FRONT AND REAR DRIVING WHEELS Russian patent published in 2013 - IPC B60K17/346 F16H59/52 B60K23/04 

FIELD: transport.

SUBSTANCE: invention relates to vehicles with all-wheel drive. The truck comprises frame, body, strain gauge, driveline including interaxle differential. Interaxle differential comprises two planetary gear sets. The planetary gear sets are switched by gear clutch. The gear clutch is hydraulically driven by piston. The piston is located in two-section working chamber. The working chamber communicates with working fluid pressure source through hydraulic on/off control valve. Hydraulic control valve is operated by electric magnet. The electric magnet by one its electric circuit is connected via threshold element to strain gauge, and by its other electric circuit - to transmission low gear actuation sensor. In the electric circuit connecting electric magnet with strain gauge, self-reset circuit-opening relay contact. The contact is connected to transmission high gear actuation sensor.

EFFECT: better drivability and flotation of vehicle.

2 cl, 2 dwg