Transmission system having temperature based input control

摘要

A transmission system is disclosed for use with an engine. The transmission system may have a plurality of gear sets, an input member configured to be powered by the engine and to drive the plurality of gear sets, an output member driven by the plurality of gear sets, and at least one clutch configured to selectively engage select gears of the plurality of gear sets. The transmission system may also have a controller in communication with the engine. The controller may be configured to generate an estimated temperature of the at least one clutch. The controller may further be configured to selectively derate the engine based on the estimated temperature.

主权项

1. A transmission system for use with an engine, the transmission system comprising:
a plurality of gear sets; an input member configured to be powered by the engine and to drive the plurality of gear sets; an output member driven by the plurality of gear sets; at least one clutch configured to selectively engage select gears of the plurality of gear sets; a sump; and a temperature sensor configured to generate a signal indicative of a temperature of fluid within the sump; and a controller in communication with the engine, the controller being configured to:
count a number of shifts executed by the at least one clutch since start of operation of the transmission system;generate an estimated temperature of the at least one clutch based on the signal and the number of shifts; andselectively derate the engine based on the estimated temperature.