Slip-responsive vehicle drive system

摘要

A drive and control system is provided for a towing vehicle pulling a towed implement, such as a tractor pulling a scraper. The drive system includes an engine which drives a generator for generating electric power. A towing vehicle electric drive motor is connected to driven wheels of the towing vehicle through a transmission. An assist or implement electric drive motor is drivingly connected to driven wheels of the implement. A power distribution unit controls distribution of electric power from the generator to the towing vehicle and implement drive motors. A control unit controls the power distribution unit as a function of an operator set power split, an operator set maximum wheel slip, sensed wheel slip and other sensed parameters.

主权项

1. A drive system for a towing vehicle pulling a towed powered implement, the drive system comprising:
a power generating unit, including a generator for generating electrical power; an implement electric drive motor connected to a driven axle of the towed implement; a manually operable power distribution setting unit; a vehicle speed sensor for generating a vehicle speed signal; a wheel speed sensor for generating a wheel speed signal; a power distribution unit for controlling distribution of electric power from the generator to the implement electric drive motor; and a control unit connected to the setting unit, the speed sensors and the power distribution unit, the control unit determining wheel slip from the vehicle and wheel speed sensors, and the control unit controlling the power distribution unit in response to the setting unit and the wheel slip.