Process and device for controlling the driving torque transmitte

Details Process and device for controlling the driving torque transmitte Process and device for controlling the driving torque transmitte

1989-04-11

1990-12-11

Marmor, Charles A.

Motor vehicles

With means for detecting wheel slip during vehicle...

180 143, 180 534, 180242, B62D 5904

Patent

active

049763318

ABSTRACT:
A method for controlling the driving torque transmitted to a trailer having hydraulically powered driving axles. The tractor pulling the trailer is driven directly by an engine. The engine also drives a hydraulic pump which feeds at least one hydraulic motor on the trailer. The hydraulic system is controlled so that the speed of the driving wheels of the trailer is the same as the driving wheels of the tractor. The volumetric capacity of the pump or motor is controlled to control the torque transmitted to the trailer. The system is controlled by comparing the ratio of the rotational speeds of the hydraulic motor and hydraulic pump to a predetermined valve.

REFERENCES:
patent: 4502558 (1985-03-01), Mauri
patent: 4685527 (1987-08-01), Oswald et al.

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