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US 12,038,052 B2Granted
Apparatuses, methods, systems, and techniques for improving the accuracy of internal combustion engine torque determinations
AssigneeCummins Inc.
InventorsSteven M. Bellinger, Vasudev S. Karve, Ajinkya A. Gujar
Life of this patent
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Abstract
A system comprises a powertrain including an engine configured to output torque to a driveline, and an electronic control system operatively coupled with the powertrain. The electronic control system is configured to determine an engine torque value, and control a component of the driveline in response to the engine torque value. The engine torque value may account for an effect of air-fuel ratio (AFR) on engine torque. The engine torque value may account for an effect of charge transport delay on engine torque.
Claims20
A system comprising:
- a powertrain including an engine configured to output torque to a driveline;
- and
- an electronic control system operatively coupled with the powertrain and configured to
- determine an engine torque value in response to an air-fuel ratio (AFR) parameter and an engine acceleration parameter to account for an effect AFR on engine torque and an effect of engine acceleration on AFR, and
- control a component of the driveline in response to the engine torque value.
2 more elements
A method comprising:
- providing a system comprising a powertrain including an engine configured to output torque to a driveline, and an electronic control system operatively coupled with the powertrain;
- and
- operating the electronic control system to perform the acts of:
- determining an engine torque value in response to an air-fuel ratio (AFR) parameter and an engine acceleration parameter to account for an effect of AFR on engine torque and an effect of engine acceleration on AFR, and
- controlling a component of the driveline in response to the engine torque value.
2 more elements
Dependencies are inferred from the claim text.