Hybrid power driving system and vehicle

A drive system, hybrid technology, applied in hybrid vehicles, motor vehicles, power units, etc., can solve the problems of inability to realize parking power generation, poor motor speed regulation function, small output torque, etc., to achieve efficient work, convenient The effect of speed regulation and quantity reduction

Active Publication Date: 2020-12-29
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the drive motor is directly connected to the final drive gear through gears, the hybrid drive system cannot realize power generation when parking
Moreover, the drive motor is directly connected to the main reducer gear, the drive motor has only one gear, the transmission ratio is small, the speed regulation function of the motor is poor, and the output torque is small

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

[0066] Such as figure 1 As shown, the hybrid drive system 100 provided in the first embodiment of the present application includes an engine 1 , a gearbox and a motor 2 , and the gearbox includes a speed change mechanism 3 and a final reducer 4 .

[0067] The speed change mechanism 3 includes a clutch device 301, an input shaft 302, an output shaft 303, a synchronizing device, a plurality of driving gears arranged on the input shaft 302 and a plurality of driving gears arranged on the output shaft 303 and a plurality of the driving gears arranged on the output shaft 303. The gears correspond to a plurality of driven gears, and the clutch device 301 is connected between the engine 1 and the input shaft 302 . The motor 2 is connected to the output shaft 303 through a reduction gear set, and the output shaft 303 is connected to the final reducer to output power.

[0068] The final reducer 4 includes a final reducer driving gear 401 and a final reducer driven gear 402 meshing wit...

no. 2 example

[0100] Figure 21 A hybrid drive system 100 of a second embodiment of the present application is shown.

[0101] In the second embodiment, the plurality of driving gears include a first driving gear 304 , a second driving gear 305 , a third driving gear 306 , The fourth driving gear 307 and the fifth driving gear 308; the plurality of driven gears include a first driven gear 309 and a second driven gear arranged on the output shaft 303 in sequence in a direction away from the engine 1 310, the third driven gear 311, the fourth driven gear 312 and the fifth driven gear 313, the second driven gear 310, the third driven gear 311, the fourth driven gear 312 and the fifth driven gear The gear 313 is idly sleeved on the output shaft 303, and the first driven gear 309 is fixed on the output shaft 303; the first driving gear 304 meshes with the first driven gear 309, and the second driving gear 309 meshes with the first driven gear 309; The gear 305 meshes with the second driven gea...

no. 3 example

[0105] Figure 22 A hybrid drive system 100 of a third embodiment of the present application is shown.

[0106] In the third embodiment, the plurality of driving gears include a first driving gear 304, a second driving gear 305, a third driving gear 306, a Four driving gears 307 and the fifth driving gear 308, the first driving gear 304, the second driving gear 305, the third driving gear 306 and the fourth driving gear 307 are sleeved on the input shaft 302, and the fifth driving gear The driving gear 308 is fixed on the input shaft 302; the plurality of driven gears include a first driven gear 309, a second driven gear 309, and a second driven gear that are successively sleeved on the output shaft 303 in a direction away from the engine 1. gear 310, the third driven gear 311, the fourth driven gear 312 and the fifth driven gear 313; the first driving gear 304 meshes with the first driven gear 309, and the second driving gear 305 meshes with the second The driven gear 310 m...

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PUM

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Abstract

The invention belongs to the technical field of hybrid power, and relates to a hybrid power driving system and a vehicle. The hybrid power driving system comprises an engine, a gearbox and a motor, wherein the gearbox comprises a speed change mechanism and a main speed reducer; the speed change mechanism comprises a clutch device, an input shaft, an output shaft, a synchronizer, a plurality of driving gears and a plurality of driven gears, the clutch device is connected between the engine and the input shaft, and the motor is connected with the input shaft or the output shaft; part or all of the plurality of driving gears sleeve the input shaft in a hollow mode, and part or all of the plurality of driven gears sleeve the output shaft in the hollow mode; and at least two adjacent driving gears which are fixedly integrated and sleeve in the hollow mode are arranged on the input shaft, and at least two adjacent driven gears which are fixedly integrated and sleeve in the hollow mode are arranged on the output shaft. According to the hybrid power driving system, multiple gears are achieved through a few synchronizers, the axial size is small, and the requirement for the axial size of the motor is not high.

Description

technical field [0001] The present application belongs to the technical field of hybrid power, and in particular relates to a hybrid power drive system and a vehicle. Background technique [0002] The development and utilization of new energy vehicles has gradually become a trend. As one of the new energy vehicles, a hybrid vehicle is driven by an engine and / or an electric motor, and has multiple modes, which can improve transmission efficiency and fuel economy. [0003] An existing hybrid drive system includes an engine, a drive motor, a dual-clutch transmission and a power battery, etc., wherein the output shaft of the engine is connected to a dual-clutch transmission, and the output shaft of the drive motor is fixedly connected with a gear meshing with the final drive. gears to output power. [0004] Since the drive motor is directly connected to the gear of the main reducer through gears, the hybrid power drive system cannot realize parking power generation. Moreover,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/36B60K6/543B60L50/61
CPCB60K6/36B60K6/543B60L50/61Y02T10/62Y02T10/70
Inventor 费学安刘华朝华煜储昭伟潘世翼
Owner BYD CO LTD
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