Patent ID: 6162146
Filing Date: 2000-12-19
Classification: B60W,B60Y,Y10T

Abstract:
A control device for a drive train of a machine, the drive train including an engine and transmission having a plurality of directional and speed clutches, comprising:a control member being manually moveable and adapted to produce an operator control signal;an engine control module being adapted to receive the operator control signal and responsively reduce a rotational speed of the engine;a clutch pressure control valve adapted to direct fluid under pressure to a selected one of the clutches and control the engagement thereof;a transmission control module being adapted to additionally receive the operator control signal and responsively deliver a transmission control signal to the pressure control valve to controllably decrease an amount of engagement of the selected one of the clutches to reduce a transmitted torque from the transmission in response to an amount of movement of the control member;a set of brakes and a brake control valve adapted to direct fluid under pressure to the brake set and control an engagement thereof; anda brake control module being adapted to additionally receive the operator control signal and responsively control the engagement of the brake set, wherein the brake control module delivers a braking control signal to the brake control valve to controllably increase an amount of engagement of the brake set in response to an amount of movement of the control member.