Apparatus for limiting the torque on a power train and method of

Details Apparatus for limiting the torque on a power train and method of Apparatus for limiting the torque on a power train and method of

1997-08-11

1999-11-23

Wright, Dirk

Interrelated power delivery controls, including engine control

Transmission control

Engine controlled by transmission

B60K 4108

Patent

active

059891548

ABSTRACT:
An apparatus for controlling the torque on a power train of a machine is disclosed. The power train includes an engine, a transmission, and a torque converter for transmitting torque between the engine and transmission. A torque converter speed sensor produces a torque converter speed signal and an engine speed sensor produces an engine speed signal. A gear selector device produces a gear select signal indicating a desired gear ratio. A look-up table stores an upper engine power curve and a lower engine power curve. Finally, an electronic controller receives the torque converter, engine speed and gear select signals, and selects one of the upper and lower engine power curves to operate the engine in response to the selected gear ratio and torque converter speed.

REFERENCES:
patent: 5457633 (1995-10-01), Palmer et al.
patent: 5525043 (1996-06-01), Lukich

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