Hybrid Drive Train Provided with Hub Motors
First Claim
1. A hybrid drive train for a vehicle provided with at least one driving wheel, the drive train comprising:
- at least one hub motor associated with a respective one of said at least one driving wheel;
each said at least one hub motor being provided with a stator mounted to the vehicle and a rotor secured to said respective one of said at least one driving wheel; and
an engine provided with a rotatable output shaft;
said rotatable output shaft being operatively coupled to said respective one of said at least one driving wheel.
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Accused Products
Abstract
A parallel hybrid drive train is provided with an internal combustion engine (ICE) that supplies mechanical power to two driving wheels of a vehicle. Each driving wheel is provided with a respective hub motor having a stator mounted to the vehicle and a rotor directly connected to the driving wheel. The interconnection between the ICE and the driving wheel is done via a cardan joint provided between the output shaft of the ICE and each driving wheel. Accordingly, when the hub motors are energized, the drive train is in a parallel hybrid mode where both the ICE and the hub motors contribute to the rotation of the wheel. The drive train may also be placed in a conventional mode when the hub motors are not energized and in a purely electric mode when the ICE is not running.
34 Citations
31 Claims
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1. A hybrid drive train for a vehicle provided with at least one driving wheel, the drive train comprising:
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at least one hub motor associated with a respective one of said at least one driving wheel;
each said at least one hub motor being provided with a stator mounted to the vehicle and a rotor secured to said respective one of said at least one driving wheel; andan engine provided with a rotatable output shaft;
said rotatable output shaft being operatively coupled to said respective one of said at least one driving wheel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A hub motor for a driving wheel part of a vehicle provided with a hybrid drive train, the hybrid drive train including an engine provided with a rotatable output shaft, the hub motor comprising:
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a stator mounted to the vehicle; a rotor; and a coupling element for interconnecting said rotor with the driving wheel, and for interconnecting the rotatable output shaft with both said rotor and said driving wheel. - View Dependent Claims (22, 23, 24)
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25. A coupling element for interconnecting a rotor of a hub motor to a driving wheel in a hybrid drive train, the hybrid drive train further comprising an engine provided with an output shaft, the coupling element comprising:
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a first interconnecting portion for interconnection with the driving wheel; a second interconnecting portion for interconnection with the output shaft; and a third interconnecting portion for interconnection with the rotor. - View Dependent Claims (26, 27, 28, 29, 30)
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31. A hybrid drive train for a vehicle provided with first and second driving wheels, said drive train comprising:
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an internal combustion engine (ICE) provided with an output shaft; first and second hub motors each associated with a respective driving wheel;
each said first and second hub motors being provided with a stator and a rotor;
said stator being mounted to the vehicle and said rotor being mounted to a respective driving wheel;a first cardan joint assembly interconnecting said output shaft and said first driving wheel; and a second cardan joint assembly interconnecting said output shaft and said second driving wheel; wherein a) when said hub rotor is energized, the drive train is placed in a parallel hybrid driving mode and b) when said hub motor is not energized, said drive train is in a conventional driving mode.
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Specification