US 8,474,556 B2Granted

Hybrid power output system

AssigneeBYD Company Limited

InventorsChuanfu Wang, Hongbin Luo, Xuguang Zhou, Huanguang Chen, Xiaohua Tang, Youchuan Song

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Abstract

A hybrid power output system for outputting the power to the wheel driving shaft, including and engine, a first motor, a second motor, a third motor, a battery, a first clutch, a second clutch, and a third clutch, wherein the first motor and the second motor are connected electrically with the battery, and the third motor is connected electrically with the battery or another battery; the engine is connected to the first motor via the first clutch, and connected to the third motor via the third clutch; the first motor is connected to the second motor via the second clutch, and the second motor is connected to a wheel driving shaft. The hybrid power output system can reduce the response time of the vehicle, perfect power performance, save space, and reduce cost as well.

Claims19

Dependent claims

A hybrid power output system for a vehicle, comprising:

a first motor-generator;
a second motor-generator;
a third motor-generator;
a battery electrically connected to the first motor-generator and the second motor-generator;
the third motor-generator electrically connected to the battery or to a second battery;
an engine;
a first clutch operatively coupled between the engine and the first motor-generator;
a second clutch operatively coupled between the first motor-generator and the second motor-generator;
a third clutch operatively coupled between the engine and the third motor-generator;
a driving wheel shaft coupled to the second motor-generator and configured to receive rotational power from the second motor-generator;
and
wherein the engine, the first motor-generator, the second motor-generator, and the third motor-generator are configured, when enabled, to provide rotational power to the driving wheel shaft, and wherein and the first motor-generator, the second motor-generator, and the third motor-generator are further configured to charge the battery.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/521,059Filed 21 Dec 2007
Priority: CN 2006 1 015772625 Dec 2006
Published: US 2010/0181125 A122 Jul 2010
Granted: 2 Jul 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification25 codes

B60K 6/40
Characterised by apparatus, components or means specially adapted for HEVs: characterised by the assembly or relative disposition of components
B60K 6/387
Characterised by the driveline clutches: actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
B60K 6/442
Series-parallel type: series-parallel switching type
B60L 3/0061
Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train: relating to electrical machines