Method and apparatus for a two electric motor tandem drive system
First Claim
1. A two electric tandem motor apparatus for use in a Hybrid electric Drive Vehicle, the two electric tandem motor apparatus comprising:
- a. a first electric motor/generator, coupled to a first power inverter;
b. a first clutch assembly also called a first synchro-lock coupling for use in coupling the first electric motor/generator to a hydrocarbon fuel powered engine as needed, for acceleration, high speed driving, or battery charging;
c. a second electric motor/generator coupled to a differential mechanism for driving one or more wheels of a vehicle, and connected to a second power inverter;
d. a second clutch assembly also called a second synchro-lock coupling for use in coupling the first electric motor/generator to the second electric motor/generator as needed; and
e. electronic connections from a Vehicle Control Unit (VCU) to the first electric motor/generator, the second electric motor/generator, the first synchro-lock coupling and the second synchro-lock coupling wherein signals from the VCU control an exact coupling configuration of the first electric motor/generator, the second electric motor/generator, the first synchro-lock coupling and the second synchro-lock coupling.
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Accused Products
Abstract
A Conversion kit apparatus for converting a hydrocarbon fuel drive vehicle into a Hybrid Electric Drive Vehicle is disclosed wherein electric motors, a battery and a Vehicle Control Unit (VCU) are used to replace the mechanical components of a standard hydrocarbon fuel drive vehicle, and wherein these replacement units are within the weight and size constraints of the vehicle to be converted. Also disclosed is a two electric tandem motor apparatus for use in a Hybrid electric drive vehicle. Described is the selective use of two electric machines “coupled” to one another for maximum power or uncoupled for steady state and limited acceleration driving. Also described is the dual nature of the generator portion that can be coupled/uncoupled from the engine but also coupled/uncoupled from the drive motor, as well as used to supply power to auxiliary equipment.
17 Citations
18 Claims
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1. A two electric tandem motor apparatus for use in a Hybrid electric Drive Vehicle, the two electric tandem motor apparatus comprising:
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a. a first electric motor/generator, coupled to a first power inverter; b. a first clutch assembly also called a first synchro-lock coupling for use in coupling the first electric motor/generator to a hydrocarbon fuel powered engine as needed, for acceleration, high speed driving, or battery charging; c. a second electric motor/generator coupled to a differential mechanism for driving one or more wheels of a vehicle, and connected to a second power inverter; d. a second clutch assembly also called a second synchro-lock coupling for use in coupling the first electric motor/generator to the second electric motor/generator as needed; and e. electronic connections from a Vehicle Control Unit (VCU) to the first electric motor/generator, the second electric motor/generator, the first synchro-lock coupling and the second synchro-lock coupling wherein signals from the VCU control an exact coupling configuration of the first electric motor/generator, the second electric motor/generator, the first synchro-lock coupling and the second synchro-lock coupling. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A dual integrated generator motor apparatus for use in a Hybrid electric Drive Vehicle comprising:
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a. a Vehicle having a hydrocarbon fuel powered engine directly coupled to a drive flange, which is directly connected to one end of a drive shaft and an other end of the drive shaft directly connected to a drive plate, the dual integrated generator motor apparatus positioned on the drive shaft between the drive flange and the drive plate, with the drive shaft passing through a center of the dual integrated generator motor apparatus; b. a generator motor section having bearings to allow the drive shaft to rotate independently of the generator motor section and to allow a rotor in the generator motor section to rotate independently of the drive shaft; c. the generator motor section having a first synchro-lock coupling for coupling the generator motor section to the drive plate thereby coupling the generator motor section to the engine; d. a drive motor section directly coupled to a differential for driving one or more wheels of the vehicle, and having bearings to allow the drive shaft to rotate independently of the drive motor section and to allow a rotor in the drive motor section to rotate independently of the drive shaft; e. the drive motor section having a second synchro-lock coupling for coupling the drive motor section to the generator motor section; and f. the dual integrated generator motor apparatus having an internal power electronics section comprising power inverters, and electronic connections from elements of the dual integrated generator motor apparatus to a Vehicle control unit (VCU) and to one or more batteries. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification