Dual motor electric driveline
AssigneeDana Italia S.R.L.
InventorsLorenzo Serrao, Filip Van Raepenbusch
Life of this patent
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Abstract
The present document relates to a dual motor electric driveline, comprising: a transmission having an input and an output, a power take-off (PTO), a first electric motor drivingly engaged or selectively drivingly engaged with the input of the transmission, a second electric motor, a first clutching device, and a second clutching device, wherein the second electric motor is selectively drivingly engaged with the input of the transmission through the first clutching device, and wherein the second electric motor is selectively drivingly engaged with the PTO through the second clutching device. The present document further relates to a vehicle including said dual motor electric driveline, and to a method of controlling said dual motor electric driveline.
Claims19
A motor electric driveline, comprising:
- a transmission comprising an input, an output, and at least a first gear ratio and a second gear ratio between the input and the output of the transmission,
- a power take-off (PTO),
- a first electric motor selectively engaged with the input of the transmission,
- a second electric motor,
- a first clutching device selectively connecting the second electric motor to the input of the transmission,
- a second clutching device selectively connecting the second electric motor to the input of the PTO, and
- an electronic control unit (ECU) configured to:
- when a requested transmission input torque is below a transmission input torque threshold:
- complete a shift from the first gear ratio to the second gear ratio after synchronizing a speed of the first electric motor with a current transmission output speed corresponding to the second gear ratio, and
- engage the first clutching device to connect the second electric motor with the input of the transmission after synchronizing a speed of the second electric motor with the current transmission output speed corresponding to the second gear ratio.
A motor electric driveline, comprising:
- a transmission comprising an input, an output, and at least a first gear ratio and a second gear ratio between the input and the output of the transmission
- a power take-off (PTO),
- a first electric motor selectively engaged with the input of the transmission,
- a second electric motor,
- a first clutching device, the second electric motor selectively engaged with the input of the transmission through the first clutching device,
- a second clutching device, the second electric motor selectively engaged with the PTO through the second clutching device, and
- an electronic control unit (ECU) configured to simultaneously synchronize a speed of the first electric motor and a speed of the second electric motor with a current transmission output speed corresponding to the second gear ratio when the transmission is shifted from the first gear ratio to the second gear ratio.
A method of operating a motor electric driveline comprising:
- the motor electric driveline, comprising:
- a transmission comprising an input, an output, and at least a first gear ratio and a second gear ratio between the input and the output of the transmission
- a power take-off (PTO),
- a first electric motor selectively engaged with the input of the transmission,
- a second electric motor,
- a first clutching device, the second electric motor selectively engaged with the input of the transmission through the first clutching device, and
- a second clutching device, the second electric motor selectively engaged with the PTO through the second clutching device, and
- synchronizing a speed of the first electric motor and a speed of the second electric motor with a current transmission output speed corresponding to the second gear ratio when the transmission is shifted from the first gear ratio to the second gear ratio.
Dependencies are inferred from the claim text.