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US 12,709,153 B2Granted
Vehicle with E-axle
AssigneeOshkosh Corporation
InventorsMartin J. Schimke, Andrew Kotloski
Life of this patent
Estimating the term…
Abstract
A vehicle includes a chassis and an electric axle assembly coupled to the chassis. The electric axle assembly includes a first electric motor, a second electric motor, a drive differential configured to combine a first input torque from the first electric motor and a second input torque from the second electric motor and to drive an output shaft using the combined torque, and a first axle coupled to a first tractive element configured to be driven by the output shaft to propel the vehicle.
Claims19
A vehicle comprising:
- a chassis;
- and
- an electric axle assembly coupled to the chassis, the electric axle assembly comprising:
- a first electric motor;
- a second electric motor;
- a drive differential configured to combine a first input torque from the first electric motor and a second input torque from the second electric motor and to drive an output shaft using the combined torque;
- a first axle coupled to a first tractive element configured to be driven by the output shaft to propel the vehicle;
- a second tractive element positioned on an opposite side of the electric axle assembly from the first tractive element;
- and
- an axle differential coupled to and configured to be driven by the output shaft, the axle differential coupled to and configured to drive the first tractive element and the second tractive element.
7 more elements
A method of shifting gears in a vehicle having a first electric traction motor coupled to a first gear assembly and a second electric traction motor coupled to a second gear assembly, the method comprising:
- simultaneously operating the first electric traction motor to supply a first amount of power to the first gear assembly and operating the second electric traction motor to supply a second amount of power to the second gear assembly;
- simultaneously operating the first electric traction motor to stop supplying power and operating the second electric traction motor to supply a third amount of power, the third amount of power being higher than the second amount of power;
- while the first electric traction motor is not supplying power, shifting the first gear assembly from a first gear configuration to a second gear configuration;
- simultaneously operating the second electric traction motor to stop supplying power and operating the first electric traction motor to supply a fourth amount of power, the fourth amount of power being greater than the first amount of power;
- and
- while the second electric traction motor is not supplying power, shifting the second gear assembly from a third gear configuration to a fourth gear configuration.
3 more elements
A vehicle comprising:
- a chassis;
- and
- an electric axle assembly coupled to the chassis, the electric axle assembly comprising:
- an axle comprising a first tractive element on a first side of the chassis and a second tractive element on a second side of the chassis;
- a first electric motor configured to drive a first output gear;
- a second electric motor configured to drive a second output gear;
- a drive differential comprising a spider gear configured to be driven by the first output gear and the second output gear, the spider gear coupled to and configured to drive a ring gear using a combined output torque from the first output gear and the second output gear;
- and
- an axle differential configured to receive the combined output torque from the ring gear and to divide the combined output torque to drive the first tractive element and the second tractive element.
6 more elements
A vehicle comprising:
- a chassis;
- and
- an electric axle assembly coupled to the chassis, the electric axle assembly comprising:
- a first electric motor;
- a second electric motor;
- a drive differential configured to combine a first input torque from the first electric motor and a second input torque from the second electric motor and to drive an output shaft using the combined torque;
- a first axle coupled to a first tractive element configured to be driven by the output shaft to propel the vehicle;
- and
- a first gear assembly configured to transmit the first input torque from the first electric motor to the drive differential, the first gear assembly comprising:
- a first planetary gearset comprising a carrier coupled to a plurality of planet gears;
- a direct drive shaft;
- and
- a first fork configured to selectively couple the first electric motor to the first planetary gearset or the direct drive shaft.
10 more elements
Dependencies are inferred from the claim text.