Back to results
US 9,068,517 B2Granted
Cooridnated torque control operation with de-energized throttle
AssigneeGM Global Technology Operations LLC
InventorsChristopher E. Whitney, Paul A. Bauerle, Ning Jin, Todd R. Shupe, Robert C. Simon, Jr.
Life of this patent
Estimating the term…
Abstract
An engine control system comprises an air control module and a spark control module. The air control module controls a throttle valve based on a first desired torque when the throttle valve is in an operable state. The spark control module controls spark advance based on the first desired torque and a second desired torque when the throttle valve is in a fault state. The throttle valve is maintained in a predetermined fault position when in the fault state.
Claims20
An engine control system comprising:
- an air control module that controls a throttle valve based on a first desired torque when said throttle valve is in an operable state;
- and
- a spark control module that, when said throttle valve is in a fault state, controls spark advance based on said first desired torque and a second desired torque,
- wherein said throttle valve is maintained in a predetermined fault position when in said fault state.
1 more element
An engine control method comprising:
- controlling a throttle valve based on a first desired torque when said throttle valve is in an operable state;
- and,
- when said throttle valve is in a fault state, controlling spark advance based on said first desired torque and a second desired torque,
- wherein said throttle valve is maintained in a predetermined fault position when in said fault state.
1 more element
Dependencies are inferred from the claim text.