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US 6,142,907 AGranted
Power transmission apparatus for an automobile
AssigneeHitachi, Ltd.
InventorsToshimichi Minowa, Ryoso Masaki, Toshiyuki Innami, Yuzo Kadomukai
Life of this patent
Estimating the term…
Abstract
Disclosed is a power transmission apparatus for an automobile comprising an engine 1, a generator 15 driven by an output of the engine 1, and a motor 29 driven by a generation output of the generator 15 and a discharge output of a battery 47, wherein a clutch mechanism 23 is provided between an output shaft of the engine 1 and an output shaft of the generator 15. In a hybrid vehicle, a loss caused by an inertia torque of the generator can be avoided.
Claims2
A power transmission apparatus for an automobile comprising:
- a mechanism in which a rotational force of an internal combustion engine and a rotational force of an electric motor are synthesized or selectively switched to drive a drive wheel, the rotational force of said internal combustion engine or said drive wheel is converted into electric power by a generator, and said electric power is supplied to said electric motor;
- and
- a mechanism for disconnecting said generator from a rotational force transmission system constructed by said internal combustion engine and said drive wheel, wherein the rotational force transmission system has a mechanism for selectively switching a first transmission system having a first transmission ratio, a second transmission system having a second transmission ratio, and a neutral state for disconnecting the rotational force transmission system;
- in the case where rotation is transmitted by said first transmission system, the rotational force transmission system is disconnected from said generator;
- and
- in the case where rotation is transmitted by said second transmission system, the rotational force transmission system is connected to said generator.
3 more elements
A power transmission apparatus for an automobile comprising:
- a mechanism in which a rotational force of an internal combustion engine and a rotational force of an electric motor are synthesized or selectively switched to drive a drive wheel, the rotational force of said internal combustion engine or said drive wheel is converted into electric power by a generator, and said electric power is supplied to said electric motor;
- and
- a mechanism for disconnecting said generator from a rotational force transmission system constructed by said internal combustion engine and said drive wheel, wherein the rotational force transmission system has a mechanism for selectively switching a first transmission system having a first transmission ratio, a second transmission system having a second transmission ratio, and a neutral state for disconnecting the rotational force transmission system;
- in the case where rotation is transmitted by said first transmission system, the rotational force transmission system is disconnected from said generator;
- and
- in the case where rotation is transmitted by said second transmission system and in the case of said neutral state, said generator is connected to the rotational force transmission system.
3 more elements
Dependencies are inferred from the claim text.