초록 ▼

A traction control system used to control a hydraulically propelled vehicle having front and rear drive assemblies has a variable displacement hydraulic motor coupled to each drive assembly. The hydraulic motors are connected in parallel to a pump. A control system senses the speed and direction of

A traction control system used to control a hydraulically propelled vehicle having front and rear drive assemblies has a variable displacement hydraulic motor coupled to each drive assembly. The hydraulic motors are connected in parallel to a pump. A control system senses the speed and direction of each motor as well as the grade of the ground surface. The controller uses this data to control the front and rear hydraulic motors. If the controller determines that one of the drive axles is slipping, it will destroke that axle's motor. However, if the vehicle is traveling downhill, the downhill drive assembly will not be destroked.

대표청구항 ▼

[ What is claimed is:] [1.] A traction control system in combination with a hydraulically propelled vehicle having front and rear drive assemblies comprising:a variable speed hydraulic motor coupled to each of the front and rear drive assemblies;a pulse pickup operatively coupled to each drive assem

[ What is claimed is:] [1.] A traction control system in combination with a hydraulically propelled vehicle having front and rear drive assemblies comprising:a variable speed hydraulic motor coupled to each of the front and rear drive assemblies;a pulse pickup operatively coupled to each drive assembly for sensing the speed and direction of each drive assembly;a grade sensor for sensing the grade of a ground surface; anda controller electrically operatively connected to each variable speed hydraulic motor, each pulse pickup, and the grade sensor to control the motors based on the sensed speeds, the sensed directions, and the sensed grade, wherein the controller controls the motors such that if one of the motors is determined to be slipping, the slipping motor is selectively destroked unless the vehicle is traveling downhill and the slipping motor is farther downhill than the other motor.