08483935 is referenced by 29 patents and cites 4 patents.

A method for selectively creating vacuum in a hybrid powertrain controlled by a hybrid control processor and having an engine controlled by an engine control module includes requesting a pressure differential between a first intake point and a second intake point, wherein the first intake point and the second intake point are separated by a throttle. An actual torque capacity is calculated for the engine, wherein the actual torque capacity occurs when pressure is substantially equal at the first intake point and at the second intake point. A desired torque capacity is also calculated for the engine, wherein the desired torque capacity reduces the pressure at the second intake point relative to the pressure at the first intake point, such that the requested pressure differential is created. The engine is then operated at one of the desired torque capacity and the actual torque capacity.

Title
Method for controlling internal combustion engines in hybrid powertrains
Application Number
12/878380
Publication Number
8483935 (B2)
Application Date
September 9, 2010
Publication Date
July 9, 2013
Inventor
Weixin Yan
Novi
MI, US
Jon C Wasberg
Davison
MI, US
Dennis A Light
Monroe
MI, US
Jeffrey M Kaiser
Highland
MI, US
Anthony H Heap
Ann Arbor
MI, US
William R Cawthorne
Milford
MI, US
Christopher E Whitney
Commerce
MI, US
Agent
Quinn Law Group PLLC
Assignee
GM Global Technology Operations
MI, US
IPC
G06F 17/00
B60W 20/00
F02D 28/00
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