Systems for a dual motor powertrain
AssigneeDana Italia S.R.L.
InventorsSudatta Karmarkar, Idris Poonawala, Pradip Jasud
Life of this patent
Estimating the term…
Abstract
An electric driveline includes a planetary gear set comprising a ring gear, a sun gear, a planet carrier coupled to the ring gear and the sun gear, a first motor including a first output shaft coupled to the ring gear, a second motor including a second output shaft coupled to the sun gear, and a controller with instructions stored in memory thereof that when executed cause the controller to adjust an operational state of the first motor and selectively couple the ring gear to a static housing via a clutch based on a speed of the planet carrier.
Claims18
An electric driveline comprising:
- a planetary gear set comprising a ring gear, a sun gear, and a planet carrier coupled to the ring gear and the sun gear;
- a first motor comprising a first output shaft coupled to the ring gear;
- a second motor comprising a second output shaft coupled to the sun gear;
- and
- a controller with instructions stored in memory thereof that when executed cause the controller to adjust an operational state of the first motor and selectively couple the ring gear to a static housing via a clutch based on a speed of the planet carrier.
A system, comprising:
- an intermediate planetary system (IPS) arranged between a first electric motor and a second electric motor, wherein a ring gear of the IPS is coupled to a first output shaft of the first electric motor and a sun gear of the IPS is coupled to a second output shaft of the second electric motor;
- a clutch configured to couple the ring gear to a housing of the IPS;
- and
- a controller configured to determine a total power demanded based on input power of the first electric motor and the second electric motor, and adjust operation of the first electric motor, the second electric motor, and the clutch in response to a comparison of the total power demanded to a threshold power.
A system for an electric driveline, comprising:
- a first electric motor comprising a first output shaft;
- a second electric motor comprising a second output shaft;
- a planetary gear set arranged between the first electric motor and the second electric motor, the planetary gear set comprising a ring gear coupled to the first output shaft, a sun gear coupled to the second output shaft, and a planet carrier coupled to the ring gear and the sun gear, wherein the second output shaft is hollow, and wherein a third output shaft is coupled to the planet carrier and extends through the second output shaft toward a drive axle;
- and
- a clutch configured to control a coupling between the ring gear and a static housing of the planetary gear set.
Dependencies are inferred from the claim text.