Back to results
US 12,179,741 B2Granted
Adaptive controls of engine disconnect clutch
AssigneeFord Global Technologies, LLC
InventorsAkshay Bichkar, Jason Meyer
Life of this patent
Estimating the term…
Abstract
A hybrid vehicle includes an engine, an electric machine, and a clutch configured to selectively couple the engine to the electric machine. A controller is programmed to command a torque to the electric machine based on a clutch model that includes a learned time constant previously selected using a family of candidate time constants based on a comparison of the family to measured pressure data of a previous engagement of the clutch.
Claims20
A hybrid vehicle comprising:
- an engine;
- an electric machine;
- a clutch configured to selectively couple the engine to the electric machine;
- and
- a controller programmed to, responsive to an engine-start request, command a torque to the electric machine based on a clutch model that includes a learned time constant previously selected from a family of candidate time constants, each associated with a candidate clutch model, based on a comparison of the candidate clutch model to measured pressure data of a previous engagement of the clutch.
2 more elements
A hybrid vehicle comprising:
- an engine;
- an electric machine;
- a clutch configured to selectively couple the engine to the electric machine;
- a pressure sensor associated with the clutch and configured to output the measured pressure data to the controller;
- and
- a controller programmed to, responsive to an engine-start request, command a torque to the electric machine based on a clutch model that includes a learned time constant previously selected from a family of candidate time constants, each associated with a candidate clutch model, based on a comparison of the candidate clutch model to measured pressure data of a previous engagement of the clutch.
3 more elements
A hybrid vehicle comprising:
- an engine;
- an electric machine;
- a clutch configured to selectively couple the engine to the electric machine;
- and
- a controller programmed to command a torque to the electric machine based on a clutch model that includes a learned time constant previously selected using a family of candidate time constants based on a comparison of the family to measured pressure data of a previous engagement of the clutch.
2 more elements
Dependencies are inferred from the claim text.