International Engine Intellectual Property Company, LLC

Tashmin Lopa

Rogelio Rodriguez

Ravi Rayala

Smitha Vempaty

A system for operating a vehicle equipped with an automatic transmission and a vehicle road speed limiter (RSL) which is programmable to limit the maximum vehicle speed for a given transmission gear includes at least on controller. The at least one controller is operable, when the speed limiter (RSL) is active, to determine if the vehicle is operating in a shuttle shifting range based on the current status of preselected operating parameters. When the vehicle is operating in a shuttle shifting range, the at least one controller is operable to control transmission operation to prevent shifting under conditions where shifting would otherwise normally occur.

System and method for controlling a transmission

An engine processor () processes data for inferring temperature of exhaust gas at an exhaust manifold () of an internal combustion engine () whose exhaust system () contains an after-treatment device () for treating exhaust gas and a sensor () for providing data for temperature of exhaust gas entering the after-treatment device. The processor processes data from the sensor and other data to infer temperature of exhaust gas at the exhaust manifold by executing an algorithm (FIGS.and) that models temperature of exhaust gas at the exhaust manifold as a function of data from the sensor and the other data, including certain constants, certain geometry of the exhaust system, and certain variables related to operation of the engine.

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Naperville, IL, United States of America

Tashmin Lopa