Control of engine pulse torque cancellation commands

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United States of America Patent

PATENT NO 9873421
SERIAL NO

15147446

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A powertrain assembly includes a transmission, an engine, first and second motor/generators and a controller. The controller includes a processor and memory on which is recorded instructions for executing a method for controlling engine pulse torque cancellation commands. The controller is programmed to determine an engine pulse torque (TP). The controller is programmed to calculate a first motor torque pulse command (TA) for the first motor/generator as a product of a first gear factor (G1), the engine pulse torque (TP) and a first ratio (IA/IE) of a predetermined first moment of inertia (IA) for the first motor/generator and a predetermined engine moment of inertia (IE). Similarly, the controller is programmed to calculate a second motor torque pulse command (TB) for the second motor/generator. The controller is programmed to control the first and second motor/generators in response to the first and second motor torque pulse commands, respectively.

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Patent Owner(s)

  • GM GLOBAL TECHNOLOGY OPERATIONS LLC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Potts, Michael D Howell, US 2 4
Ye, Shaochun Northville, US 16 93

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