U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Hybrid power system for driving a motor vehicle

Patent 4588040 Issued on May 13, 1986. Estimated Expiration Date: Icon_subject December 22, 2003. 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

3493066

3641843

3665788

3732751

3861484

3861485

3870116

3923115

Hybrid powered automobile
Patent #: 4042056
Issued on: 08/16/1977
Inventor: Horwinski

Low energy consumption vehicle propelled by thermal engine
Patent #: 4131171
Issued on: 12/26/1978
Inventor: Keyes

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Inventors

Application

No. 06/564742 filed on 12/22/1983

US Classes:

180/165, WITH FLUID OR MECHANICAL MEANS TO ACCUMULATE ENERGY (I) DERIVED FROM MOTION OF VEHICLE OR (II) OBTAINED FROM OPERATION OF VEHICLE MOTOR, AND GIVE UP THE ENERGY (1) WHEN NEEDED FOR VEHICLE ACCELERATION OR (2) TO POWER AN AUXILIARY SYSTEM OF THE VEHICLE180/65.4, Generating means is driven by a prime mover180/69.6, Vehicle has plural power plants74/572.1, Power generating-type flywheel903/903, Having energy storing means (e.g., battery, capacitor) (EPO/JPO)903/910, Orbital (e.g., planetary gears) (EPO/JPO)903/918, Continuously variable (EPO/JPO)903/922Switching type (e.g., selectively switchable) (EPO/JPO)

Examiners

Primary: Love, John J.
Assistant: Dukes, Mark C.

Attorney, Agent or Firm

International Classes

B60K 6/00 (20060101)
B60K 6/04 (20060101)
B60K 6/10 (20060101)
B60K 1/02 (20060101)
B60K 1/00 (20060101)

Abstract

A triple hybrid power system for driving a motor vehicle utilizing an internal combustion engine to drive an electric generator to charge a bank of batteries that provide electrical energy to drive an electric motor/generator that supplies power to a planetary gear set from which power is directed through a variable drive transmission to drive the wheels of the vehicle, a flywheel is used to apply periodic power through the planetary gear set to provide added power for acceleration, with a speed regulator disposed between the flywheel and the planetary gear set to maintain a substantially constant input speed that facilitates operation of the motor/generator at an optimum efficiency output. The drive transmission is operable to apply regenerative braking energy back through the planetary gear set to recharge the flywheel and, through to motor/generator, to recharge the batteries. When the vehicle is operating at a constant speed on level ground, the internal combustion engine can be applied directly to power the vehicle at optimum efficiency with the motor/generator and flywheel disengaged.

Other References

  • "For the Latest in Energy Storage", Feb. 1978, Chang et al
  • "Computer Simulation of an Advance Hybrid Electric Powered Vehicle", Jul. 1984, Chang
  • "Hybrid Drive with Flywheel Component for Economic and Dynamic Operation", Delivered Feb. 1974 at Electric Vehicle Symposium, by Helling et al
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