Electric vehicle (EV) system and operating method
AssigneeDana Italia S.R.L.
InventorsPradip Jasud, Shailesh Dalvi, Idris Poonawala
Life of this patent
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Abstract
Methods and systems for an electric vehicle (EV). The EV system includes an electric drive axle that includes a first electric motor configured to transfer mechanical power to a first drive wheel, a second electric motor configured to transfer mechanical power to a second drive wheel, and a motor coupling clutch configured to selectively rotationally couple the first electric motor to the second electric motor. The EV system further includes a controller configured to selectively rotationally couple the first electric motor to the second electric motor via operation of the motor coupling clutch based on vehicle load.
Claims20
An electric vehicle (EV) system, comprising:
- an electric drive axle, comprising:
- a first electric motor configured to transfer mechanical power to a first drive wheel;
- a second electric motor configured to transfer mechanical power to a second drive wheel;
- a motor coupling clutch configured to selectively rotationally couple the first electric motor to the second electric motor;
- and
- a controller including instructions that when executed cause the controller to:
- selectively rotationally couple the first electric motor to the second electric motor via operation of the motor coupling clutch based on vehicle load.
A method for operation of an electric vehicle (EV) system, comprising:
- disengaging a motor coupling clutch to rotationally decouple a first electric motor and a second electric motor that are included in an electric drive axle based on a vehicle load and a steering angle of the EV system;
- wherein the electric drive axle includes:
- the first electric motor configured to transfer mechanical power to a first drive wheel;
- and
- the second electric motor configured to transfer mechanical power to a second drive wheel.
An electric vehicle (EV) system, comprising:
- a first electric motor configured to transfer mechanical power to a first drive wheel;
- a second electric motor configured to transfer mechanical power to a second drive wheel;
- a motor coupling clutch configured to selectively rotationally couple the first electric motor to the second electric motor;
- and
- a controller including instructions that when executed, when a steering angle is less than a threshold angle and a vehicle load is greater than a threshold vehicle load cause the controller to:
- rotationally decouple the first electric motor from the second electric motor via operation of the motor coupling clutch;
- and
- operate the first electric motor to deliver mechanical power to the first drive wheel and second electric motor to deliver mechanical power to the second drive wheel.
Dependencies are inferred from the claim text.