Gm Global Technolgoy Operations, Inc.

Enrico Tropschug

Christopher E Whitney

Ning Jin

Klaus Pochner

Michael Livshiz

Robert Charles Simon, Jr

James L Worthing

Todd R Shupe

Vivek Mehta

Etsuko Muraji Stewart

Ronald W Van Diepen

Jun Lu

Helmut Oswald

Martin Weber

Engine control apparatus includes, but is not limited to a determining device for determining whether or not the engine is operated under predetermined deceleration operating conditions or predetermined acceleration operating conditions and for individually deactivating two or more cylinders in a disenabling sequence which is different from the firing sequence if the engine is operated under predetermined deceleration operating conditions, and/or for individually reactivating two or more of the cylinders in a reactivating sequence which is different from the firing sequence if the engine is operated under predetermined acceleration conditions.

Engine control apparatus and a method for transitioning between an all cylinder operation mode and a deactivated cylinder operation mode of a multiple cylinder internal combustion engine

An engine control system comprises a pedal torque determination module, a driver interpretation module, and an actuation module. The pedal torque determination module determines a zero pedal torque based on a desired engine torque at a zero accelerator pedal position and a minimum torque limit for an engine system. The driver interpretation module determines a driver pedal torque based on the zero pedal torque and an accelerator pedal position. The actuation module controls at least one of a throttle area, spark timing, and a fuel command based on the driver pedal torque.

Method to include fast torque actuators in the driver pedal scaling for conventional powertrains

An engine control system comprises first and second integral modules, a summer module, and a torque adjustment module. The first integral module determines an engine speed (RPM) integral value based on a difference between a desired RPM and a measured RPM. The second integral module determines a torque integral value based on a difference between a desired torque output for an engine and an estimated torque of the engine. The summer module determines an RPM-torque integral value based on a difference between the RPM and torque integral values. The torque adjustment module determines a torque adjustment value based on the RPM-torque integral value and adjusts the desired torque output and the estimated torque based on the torque adjustment value.

Commanded and estimated engine torque adjustment

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Hattersheim, Germany

Enrico Tropschug