Electric drive train for a vehicle
Patent 4484083 Issued on November 20, 1984. Estimated Expiration Date: 
April 30, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 30, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3030517 3789281 3904883 Flywheel electric transmission apparatus Patent #: 4309620 InventorApplicationNo. 06/380673 filed on 04/30/1982US Classes:290/45, TRACTION180/65.4, Generating means is driven by a prime mover290/4R, PLURAL PRIME MOVER290/50, BATTERY310/261, Rotor structure318/696OPEN-LOOP STEPPING MOTOR CONTROL SYSTEMSExaminersPrimary: Dobeck, B.Assistant: Flower, Terry Attorney, Agent or FirmInternational ClassesB60L 11/12 (20060101)B60L 11/14 (20060101) B60L 11/02 (20060101) H02K 51/00 (20060101) H02K 7/00 (20060101) F02B 1/00 (20060101) F02B 1/04 (20060101) AbstractA transmission drive has a flywheel component and includes an electrical machine in the transmission path having an armature adapted for independent rotation with the driving side of the transmission drive and an independently rotatable field structure rotatable with the driven side of the transmission drive. In a vehicle drive train the field structure of the transmission drive is connected to a rotatable shaft driven by a heat engine operated at constant RPM and speed variation is effected by electrical control means connected to the armature which regulates the armature current during relative movement of the field structure and the armature thereby varying the power transmitted to the driving side.Other References
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