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Power driving system and vehicle

A power-driven, engine-driven technology, applied in the field of power, can solve problems such as 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

[0007] The technical problem to be solved by the present invention is to provide a power drive system and a vehicle

Method used

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  • Power driving system and vehicle
  • Power driving system and vehicle
  • Power driving system and vehicle

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0094] see figure 1 , a power drive system provided by the first embodiment of the present invention includes a first motor 2, a first clutch 4, a second clutch 5, a third clutch 6, a first input shaft 8, a second input shaft 9, a third input shaft 10, output shaft 11, first gear set 12, second gear set 13 and third gear set 14;

[0095] The first motor 2 is connected to the first input shaft 8, the second input shaft 9 and the third input shaft 10 respectively through the first clutch 4, the second clutch 5 and the third clutch 6;

[0096] The first input shaft 8 is connected to the output shaft 11 through the first gear set 12;

[0097] The second input shaft 9 is connected to the output shaft 11 through the second gear set 13;

[0098] The third input shaft 10 is connected to the output shaft 11 through the third gear set 14;

[0099] The first gear set 12 , the second gear set 13 and the third gear set 14 correspond to three speed ratios. For the convenience of descripti...

no. 2 example

[0124] see image 3 , the present embodiment adds an engine 1 and a fourth clutch 7 on the basis of the first embodiment, and the engine 1 is connected with the first motor 2 through the fourth clutch 7; other structures of the second embodiment are the same as those of the first embodiment, I won't repeat them here.

[0125] By controlling the engagement or disengagement of the first clutch 4, the second clutch 5, and the third clutch 6, the power of the first motor 2 can selectively pass through the first gear set 12, the second gear set 13, and the third gear set 14. One of the gear sets transmits power to the output shaft 11, so that the first motor 2 can output three speed ratios, and realize the third gear speed change of the first motor 2. When the fourth clutch 7 is engaged, the first clutch 4, When the second clutch 5 and the third clutch 6 are engaged or disconnected, the power of the engine 1 can be selectively transmitted to the output through one of the first gea...

no. 3 example

[0181] see Figure 4 , the present embodiment adds a second motor 3 on the basis of the second embodiment, and the second motor 3 is connected with the first input shaft 8, the second input shaft 9, the third input shaft 10 or the output shaft 11; the third implementation The other structures of the example are the same as those of the third example, and will not be repeated here.

[0182] When the second motor 3 is connected with the first input shaft 8, the engine 1 can transmit power to the second motor 3 through the first input shaft 8, and the second motor 3 can transmit power to the second motor 3 through the first input shaft 8 and the first gear set 12. The power is transmitted to the output shaft 11, and then to the wheels 17;

[0183] When the second motor 3 is connected with the second input shaft 9, the engine 1 can transmit power to the second motor 3 through the second input shaft 9, and the second motor 3 can transmit the power to the second motor 3 through the...

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Abstract

The invention discloses a power driving system and a vehicle. The power driving system comprises a first motor, a first clutch, a second clutch, a third clutch, a first input shaft, a second input shaft, a third input shaft, an output shaft, a first gear set, a second gear set and a third gear set. The first motor is connected with the first input shaft, the second input shaft and the third inputshaft through the first clutch, the second clutch and the third clutch respectively, and the first input shaft, the second input shaft and the third input shaft are connected to the output shaft through the first gear set, the second gear set and the third gear set respectively. The first gear set, the second gear set and the third gear set correspond to three speed ratios. By switching the firstclutch, the second clutch and the third clutch, three-gear speed changing of the first motor can be achieved, different driving force requirements can be met, and the vehicle economy is improved. Thestructure is simple and compact, the number of used parts is small, the energy transmission loss is small, and the system efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of power, and in particular relates to a power 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 exte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/26B60K6/36B60K6/38B60W20/40
CPCB60K6/26B60K6/36B60K6/38B60W20/40B60W2710/021
Inventor 穆金辉朱新明杜延义陈俊坤谢华明
Owner BYD CO LTD
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