Vehicle power transfer system and method, and vehicle using the same
First Claim
Patent Images
1. A vehicle power transfer system, the vehicle power transfer system comprising:
- a differential unit having an input coupled to a drive shaft and at least one output coupled to a half axle;
an electric motor for supplying torque to the drive shaft and including a rotor shaft having a bore that the half axle passes through, wherein the electric motor is collinear with the differential unit and the half axle; and
a gear set coupled to the rotor shaft that couples the electric motor to the drive shaft.
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Abstract
A vehicle power transfer system and method, and vehicle using the same. The vehicle power transfer system including a differential unit coupled to a half axle, and an electric motor for supplying torque to propel a vehicle. The electric motor is collinear with the differential unit and the half axle.
55 Citations
20 Claims
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1. A vehicle power transfer system, the vehicle power transfer system comprising:
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a differential unit having an input coupled to a drive shaft and at least one output coupled to a half axle; an electric motor for supplying torque to the drive shaft and including a rotor shaft having a bore that the half axle passes through, wherein the electric motor is collinear with the differential unit and the half axle; and a gear set coupled to the rotor shaft that couples the electric motor to the drive shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for transferring power in a vehicle, the method comprising:
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providing an electric motor configured to generate torque, and a differential unit having an input coupled to a drive shaft and at least one output coupled to a half axle, the electric motor including a rotor shaft having a bore; coupling the electric motor to a gear set through a gear coupled to the rotor shaft, the gear ser in turn being coupled to the drive shaft; and aligning the electric motor collinear with the differential unit and the half axle by passing the half axle through the bore. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A vehicle comprising:
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a differential unit having an input coupled to a drive shaft and a pair of outputs coupled to a first half axle and a second half axle, each half axle coupled to couple to a wheel of the vehicle; an electric motor aligned collinearly with the differential unit and the first half axle, and including a rotor shaft having a bore such that the rotor shaft has an inner and outer surface, wherein the first half axle passes through the bore such that the first half axle is proximate the inner surface of the rotor shaft; and a gear coupled to the rotor shaft and gear set, the gear set in turn coupled to the drive shaft such that torque generated by the electric motor is applied to the drive shaft which, in turn, is applied to the first and second half axle through the differential unit to propel the vehicle. - View Dependent Claims (20)
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Specification