Hybrid Assembly , A Hybrid Power-Train , And A Method For Operating A SelectivelyMovable Assembly
First Claim
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1. ) A power-train comprising a flywheel which provides a mechanical energy path and an electrical energy path;
- and an output shaft which is coupled to said flywheel and wherein said flywheel is selectively accelerated and decelerated independent of the torque provided by said output shaft.
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Abstract
An improved hybrid powertrain incorporating a flywheel which provides a mechanical power path and an electrical power path wherein the flywheel can be accelerated or decelerated with or without generating a torque on the output shaft. The design is not only suitable for high energy flywheels, but also for low energy flywheels sized to handle transient power requirements (acceleration and deceleration), thus lowering the power requirement for the prime energy source. As such, the system is ideal for electric vehicles, fuel cell vehicles, and series hybrid vehicles as the prime power source is fractionally sized.
77 Citations
20 Claims
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1. ) A power-train comprising a flywheel which provides a mechanical energy path and an electrical energy path;
- and an output shaft which is coupled to said flywheel and wherein said flywheel is selectively accelerated and decelerated independent of the torque provided by said output shaft.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. ) A selectively movable assembly comprising a gearbox assembly;
- a pair of wheels which are coupled to said gear box assembly;
a selectively rotatable flywheel which is selectively coupled to said gearbox assembly;
a source of torque which is coupled to said gearbox assembly; and
a control assembly which allows said flywheel to provide torque to said gearbox assembly at certain sensed speeds and which allows said source of torque to provide torque to said gearbox assembly at a speed above said certain sensed speeds. - View Dependent Claims (16, 17, 18, 19)
- a pair of wheels which are coupled to said gear box assembly;
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20. ) A method of operating a selectively movable assembly comprising the steps of providing a flywheel;
- providing a source of torque energy; and
causing said flywheel to be operable only when said selectively movable assembly is at rest and only when said selectively movable assembly is travelling at speeds less than about twenty miles per hour.
- providing a source of torque energy; and
Specification