Back to results
US 2019/0143961 A1Published application
Hybrid vehicle control system
AssigneeFord Global Technologies, LLC
InventorsJason Meyer, Rajit Johri, Mark Steven Yamazaki
Life of this patent
Estimating the term…
Abstract
A vehicle includes an engine, a motor, and a controller. The engine and motor are each configured to deliver torque to a torque converter impeller. The controller is programmed to, responsive to a demanded impeller torque exceeding an upper motor torque threshold while the motor alone is delivering torque to the impeller, increase motor torque to a value that is less than the threshold and that depends on a torque converter bypass clutch torque capacity and a torque converter turbine speed.
Claims20
A vehicle comprising:
- an engine and a motor each configured to deliver torque to a torque converter impeller;
- and
- a controller programmed to, responsive to a demanded impeller torque exceeding an upper motor torque threshold while the motor alone is delivering torque to the impeller, increase motor torque to a value that is less than the threshold and that depends on a torque converter bypass clutch torque capacity and a torque converter turbine speed.
A vehicle comprising:
- an engine selectively coupled to a torque converter impeller via a disconnect clutch;
- a motor fixedly coupled to the impeller;
- and
- a controller programmed to, responsive to a demanded impeller torque exceeding a maximum sustainable motor torque while the disconnect clutch is open, increase motor torque to a value that is less than the maximum sustainable motor torque and that depends on an estimated impeller speed profile.
1 more element
A vehicle comprising:
- an engine coupled to a motor via a clutch;
- a torque converter having an impeller coupled to the motor;
- and
- a controller programmed to, responsive to an impeller torque command exceeding a threshold while the clutch is open and the engine is shutdown, increase motor torque to a value that is less than the threshold and that depends on an estimated impeller speed profile.
1 more element
Dependencies are inferred from the claim text.