Driving force transfer system in a hybrid vehicle

Details Driving force transfer system in a hybrid vehicle Driving force transfer system in a hybrid vehicle

1998-09-10

2001-07-03

Mar, Michael (Department: 3619)

Motor vehicles

Power

Electric

C180S065700, C180S065310, C180S165000, C180S065510

Reexamination Certificate

active

06253865

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an improvement of a driving force transfer system in a hybrid vehicle.
2. Description of the Background Art
As a power system in a hybrid vehicle there is known, for example, “a hybrid propulsion system for a vehicle, especially for a streetcar” which is disclosed in Japanese Patent Laid Open No. 218430/92.
As shown in
FIG. 1
of the unexamined publication, the above known system is provided with an internal combustion engine
10
and a motor
20
. A driving force generated by the internal combustion engine
10
is transmitted to a shaft
16
through a belt
25
and a clutch
14
, then from the shaft
16
it is transmitted to a vehicle wheel
26
through gears
17
,
18
and a shaft
19
. On the other hand, a driving force generated by the motor
20
is transmitted to the shaft
16
through a free wheel
24
which is a one-way clutch to assist the internal combustion engine
10
.
However, in the prior art referred to above, since the driving force of the motor
20
is transmitted to the shaft
16
through the free wheel
24
(one-way clutch), it is impossible to transmit the driving force of the internal combustion engine
10
to the motor
20
side. Thus, the motor
20
cannot be used as a generator and it is impossible to charge batteries with use of the motor
20
.
Nor is it possible to rotate the vehicle wheel
26
in the opposite direction with the motor
20
to move the vehicle backward.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide a driving force transfer system in a hybrid vehicle capable of moving the vehicle backward with use of a generator-motor as a drive source and also capable of charging batteries through the generator-motor with use an engine as a drive source.
In order to achieve the above-mentioned object, according to the present invention, in a hybrid vehicle including an engine and a generator-motor as a drive source, a driving force transfer system is constituted by disposing a centrifugal clutch, a transmission and a one-way clutch in a driving force transfer path from the engine up to a driving force joining point where the driving force from the generator-motor and that from the engine join together.
By switching the generator-motor into the motor, the vehicle is moved forward by the engine and the generator-motor, and by switching the generator-motor into the generator, batteries are charged while electric power is generated in the motor by the engine. Where required, the engine is stopped and the vehicle is moved forward or backward with the generator-motor alone.
Further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.


REFERENCES:
patent: 5193634 (1993-03-01), Masut
patent: 5327987 (1994-07-01), Abdelmalek
patent: 5460235 (1995-10-01), Shimizu
patent: 5697466 (1997-12-01), Moroto et al.
patent: 5823280 (1998-10-01), Lateur et al.
patent: 5931271 (1999-08-01), Haka
patent: 5970930 (1999-10-01), Scheidt et al.
patent: 6032755 (2000-03-01), Blandino et al.
patent: 4128297 (1992-12-01), None
patent: 0445873 (1991-09-01), None
patent: 2494642 (1982-05-01), None
patent: 2688174 (1993-09-01), None
patent: 4-218430 (1992-08-01), None
patent: 8-175476 (1996-07-01), None
patent: 74057 (1975-01-01), None
patent: 287991 (1996-10-01), None
patent: 287992 (1996-10-01), None

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