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Hybrid power driving system and vehicle

A drive system and hybrid technology, applied in the power field, can solve the problems of poor vehicle economy

Active Publication Date: 2020-05-08
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a hybrid drive system and vehicle

Method used

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  • Hybrid power driving system and vehicle
  • Hybrid power driving system and vehicle
  • Hybrid power driving system and vehicle

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0101] see figure 1 , a hybrid drive system provided by the first embodiment of the present invention, including an engine 1, a first motor 2, a second motor 3, an integrated three-clutch, a first input shaft 9, a second input shaft 10, a third input shaft Shaft 11, output shaft 13, first gear set 14 and second gear set 15, the integrated three-clutch includes first clutch 4, second clutch 5 and third clutch 6;

[0102] The engine 1 is connected to the first input shaft 9, the second input shaft 10 and the third input shaft 11 respectively through the first clutch 4, the second clutch 5 and the third clutch 6;

[0103] The first input shaft 9 is connected to the output shaft 13 through the first gear set 14;

[0104] The second input shaft 10 is connected to the output shaft 13 through the second gear set 15;

[0105] The third input shaft 11 is connected to the first motor 2;

[0106] The second motor 3 is connected to the output shaft 13;

[0107] The first gear set 14 a...

no. 2 example

[0171] see Figure 5 and Figure 6 In this embodiment, a synchronizer 8 is added on the basis of the scheme of the first embodiment with the fourth input shaft 12 and the fourth gear set 17, and the synchronizer 8 effectively connects the fourth gear set 17 to the fourth input shaft 12 and the output shaft 13 (referred to as synchronizer 8 engagement), or disconnect the fourth gear set 17 from the fourth input shaft 12 and output shaft 13 effectively connected (referred to as synchronizer 8 disconnected); the second embodiment Other structures are the same as those of the first embodiment, and will not be repeated here.

[0172] In this application, an effective connection refers to a connection capable of power transmission.

[0173] When the second motor 3 is required to generate electricity or drive, the synchronizer 8 can be engaged to realize that the second motor 3 is connected to the output shaft 13; It is disconnected from the output shaft 13 to reduce the load and ...

no. 3 example

[0185] In this embodiment, a fourth clutch 7 is added on the basis of the first embodiment;

[0186] When the fourth gear set 17 was not set, the second motor 3 was connected to the output shaft 13 through the fourth clutch 7 (see figure 2 and Figure 4 );

[0187] When the fourth gear set 17 is provided, the output shaft 13 is divided into a first output section 131 and a second output section 132, and the first output section 131 and the second output section 132 are connected through the fourth clutch 7, and the first gear set 14 and the second output section 132 are connected by the fourth clutch 7. The second gear set 15 is connected to the first output section 131, and the third gear set 16 and the fourth gear set 17 are connected to the second output section 132 (see Figure 8 );

[0188] Other structures of the third embodiment are the same as those of the first embodiment, and will not be repeated here.

[0189] When the second motor 3 is required to generate pow...

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PUM

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Abstract

The invention discloses a hybrid power driving system and a vehicle. The hybrid power driving system comprises an engine, a first motor, a second motor, an integrated three-clutch, a first input shaft, a second input shaft, a third input shaft, an output shaft, a first gear set and a second gear set. The engine is connected with the first input shaft, the second input shaft and the third input shaft through a first clutch, a second clutch and a third clutch of the integrated three-clutch. The first input shaft and the second input shaft are connected to the output shaft through a first gear set and a second gear set respectively. The first motor and the second motor are respectively connected to the third input shaft and the output shaft. The first gear set and the second gear set correspond to two speed ratios. The first gear set and the second gear set correspond to two speed ratios. By switching the first clutch and the second clutch, two-gear speed changing of the engine can be achieved. The third clutch can be disconnected to reduce the load when the first motor does not need to generate electricity according to a control strategy, different driving force requirements can be met, and the fuel economy of the vehicle is improved.

Description

technical field [0001] The invention belongs to the technical field of power, and in particular relates to a hybrid drive system and a vehicle. Background technique [0002] Hybrid systems can improve vehicle economy in several ways. For example, the engine can be switched off during idling, deceleration or braking, driving in pure electric drive mode to eliminate efficiency losses due to engine drag. In addition, the energy stored in the power battery generated by regenerative braking or generated by the electric motor during engine operation can be utilized in pure electric drive mode, or supplement the engine's torque or power in hybrid drive mode. [0003] Hybrid vehicles can be driven by combining at least two different power sources. At present, most hybrid vehicles use a gasoline-electric hybrid system, which includes an engine powered by fuel and an electric motor driven by electricity. In order to improve the combustion efficiency of the engine to the greatest ext...

Claims

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Application Information

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IPC IPC(8): B60K6/24B60K6/26B60K6/36B60K6/38B60K17/16
CPCB60K6/24B60K6/26B60K6/36B60K6/38B60K17/16Y02T10/62
Inventor 王坤城朱新明刘鹏赖青青
Owner BYD CO LTD
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