Hybrid power vehicle driving system capable of realizing single-motor two-gear driving

A hybrid vehicle and drive system technology, applied in hybrid vehicles, motor vehicles, power units, etc., can solve problems such as high cost, increase system complexity, and complex structure, and achieve improved ride comfort, simplified control strategies, simplified effect of structure

Pending Publication Date: 2020-11-24
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Hybrid vehicle drive is the core stage of the development process of new energy vehicles. In order to obtain more functions and higher efficiency, the current hybrid vehicle drive system adopts a relatively complicated structure and high cost
The prior art CN108725178A discloses a single planetary gear multi-mode hybrid transmission, and specifically discloses a technical solution in which the input gear of the drive motor and the input gear of the engine in one gear shar

Method used

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  • Hybrid power vehicle driving system capable of realizing single-motor two-gear driving
  • Hybrid power vehicle driving system capable of realizing single-motor two-gear driving
  • Hybrid power vehicle driving system capable of realizing single-motor two-gear driving

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Embodiment 1

[0027] Such as figure 1 As shown, a hybrid vehicle drive system capable of realizing single-motor two-speed drive includes an engine 1, a motor one 20, a planetary gear mechanism 3 and a synchronizer 14, and the engine 1 is connected to the drive shaft 8 of the engine through a torsional shock absorber 2 The planetary gear mechanism 3 includes a sun gear 3.4 fixedly connected to the drive shaft 8 of the engine, an outer ring gear 3.1 connected to the gearbox housing through a brake 5, a planetary carrier 3.3 connected to the outer ring gear 3.1 through a clutch 6, and located at The planetary gear 3.2 on the planet carrier 3.3 and meshed with the sun gear 3.4 and the outer ring gear 3.1 respectively, the synchronizer 14 is fixedly connected to the intermediate shaft 17, and the left joint end 14.2 of the synchronizer and the right joint end 14.1 of the synchronizer can respectively be connected with the Gear 1 15 and gear 2 16, which are vacantly sleeved on the intermediate sh...

Embodiment 2

[0050] Such as figure 2 As shown, a hybrid vehicle drive system capable of realizing single-motor two-speed drive includes an engine 1, a motor one 20, a motor two 12, a planetary gear mechanism 3 and a synchronizer 14, and the engine 1 communicates with the engine through a torsional shock absorber 2. The transmission shaft 8 is connected, and the planetary gear mechanism 3 includes a sun gear 3.4 fixedly connected to the transmission shaft 8 of the engine, an outer ring gear 3.1 connected to the gearbox housing through a brake 5, and a planetary carrier connected to the outer ring gear 3.1 through a clutch 6 3.3. The planetary gear 3.2, which is set on the planet carrier 3.3 and meshes with the sun gear 3.4 and the outer ring gear 3.1 respectively, the synchronizer 14 is fixedly connected to the intermediate shaft 17, and the left joint end 14.2 of the synchronizer and the right joint end of the synchronizer 14.1 can be respectively engaged with gear one 15 and gear two 16 ...

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Abstract

The invention aims to provide a hybrid power vehicle driving system capable of realizing single-motor two-gear driving. The hybrid power vehicle driving system comprises an engine, a planetary gear mechanism, a synchronizer and a first motor; the planetary gear mechanism comprises a sun wheel fixedly connected with a transmission shaft of the engine, an outer gear ring connected with a brake, a planet carrier connected with the outer gear ring through a clutch and a planetary gear; the synchronizer is fixedly connected onto an intermediate shaft; the two sides of the synchronizer are meshed with a first gear and a second gear separately; the first gear and the second gear are sleeved on the intermediate shaft in a separated manner; the outer gear ring and the planet carrier are coaxially and fixedly connected with a third gear and a fourth gear separately; the third gear and the fourth gear are meshed with the second gear and the first gear separately; a fifth gear and a sixth gear arefixedly connected with the intermediate shaft and the transmission shaft of the first motor separately and are meshed with a differential mechanism gear and the first gear fixedly connected onto a differential mechanism. Under the pure electric drive mode, the hybrid power vehicle driving system can form two speed ratios, more structures are not needed, and the hybrid power vehicle driving systemhas the ECVT function.

Description

technical field [0001] The invention belongs to the technical field of hybrid vehicle drive, and in particular relates to a hybrid vehicle drive system capable of realizing single-motor two-speed drive. Background technique [0002] Hybrid vehicle drive is the core stage of the development of new energy vehicles. In order to obtain more functions and higher efficiency, the current hybrid vehicle drive system adopts a relatively complicated structure and high cost. The prior art CN108725178A discloses a single planetary gear multi-mode hybrid transmission, specifically discloses a technical solution in which the input gear of the drive motor and the input gear of the engine in one gear share the same output gear, however, there are the following problems : 1) The common gear and the output shaft are fixedly connected. When the drive motor is driven separately, the function of two speed ratios of the drive motor cannot be realized through the planetary gear. If an additional s...

Claims

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Application Information

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IPC IPC(8): B60K6/365B60K6/38B60K6/26B60K6/48F16H3/44F16H3/00
CPCB60K6/365B60K6/38B60K6/26B60K6/48F16H3/44F16H3/006B60K2006/381F16H2200/2005F16H2200/2038F16H2200/0034Y02T10/62
Inventor 李超严军余秋石阮先鄂袁龙
Owner DONGFENG MOTOR CORP HUBEI
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