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Two-gear dual-clutch hybrid power system and hybrid power vehicle

A hybrid system and dual-clutch technology, applied in hybrid vehicles, motor vehicles, power units, etc., can solve the problems of poor vehicle applicability, difficult vehicle layout, and high development costs, so as to reduce vehicle fuel consumption and improve driving comfort. The effect of high performance and ability recovery rate

Pending Publication Date: 2020-08-18
CHONGQING TSINGSHAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large number of gears, the dual-clutch transmission will occupy a relatively long axial space, and the control is also relatively complicated, which makes the layout of the vehicle difficult, and usually requires the development of a new cabin, so the applicability of the vehicle is poor. The development cost is relatively high, while the shaft system of the P2.5 configuration is relatively complex, with many gear positions, and multiple shift actuators are required to shift gears, and the overall cost is relatively high

Method used

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  • Two-gear dual-clutch hybrid power system and hybrid power vehicle
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  • Two-gear dual-clutch hybrid power system and hybrid power vehicle

Examples

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Effect test

Embodiment 1

[0032] see Figure 1 to Figure 2 , this embodiment provides a two-speed dual-clutch hybrid power system, including an inner input shaft 4, an outer input shaft 8, an intermediate shaft 14, a differential, and a drive motor 15, and the intermediate shaft 14 is fixedly connected with a gear slave The driven gear 12, the second gear driven gear 11 and the constant meshing gear 13, the inner input shaft 4 is connected with the engine 1 through the first clutch 3-1, and the outer input shaft 8 is connected with the engine 1 through the second clutch 3-2 connected, the outer input shaft 8 is fixedly connected with a first-grade driving gear 9, and the first-grade driving gear 9 meshes with a first-grade driven gear 12 to form a first-grade gear pair; the inner input shaft 4 is fixedly connected with two gear driving gear 10, the second gear driving gear 10 meshes with the second gear driven gear 11 to form a second gear pair, the constant meshing gear 13 meshes with the differential...

Embodiment 2

[0053] see Figure 3 to Figure 12 , this embodiment provides a two-speed dual-clutch hybrid power system, including all the technical features of Embodiment 1, and also includes a generator 5, which is fixedly connected to the generator shaft 6 and rotates together with the engine . A generator input gear 7 is fixedly connected to the generator shaft 6 of the generator, and the generator input gear 7 meshes with the second gear driving gear 10 .

[0054] Further, the generator is used to charge the battery or to start the engine or to power the differential.

[0055] The two-speed dual-clutch hybrid power system of this embodiment has a pure engine mode, a pure electric mode and a hybrid mode.

[0056] The working principle of the two-speed dual-clutch hybrid power system of this embodiment is as follows:

[0057] Pure engine 1 mode (first gear):

[0058] The drive motor 15 stops running, the generator 5 stops running, the second clutch 3-2 is in an engaged state, and the ...

Embodiment 3

[0079] This embodiment provides a two-speed dual-clutch hybrid power system, which includes all the technical features of Embodiment 1, and also includes a generator 5, and a generator input gear 7 is fixedly connected to the generator shaft 6 of the generator, so The generator input gear 7 meshes with the first gear driving gear 9.

[0080] Further, the generator is used to charge the battery or to start the engine or to power the differential.

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Abstract

The invention discloses a two-gear dual-clutch hybrid power system and a hybrid power vehicle. The system comprises an inner input shaft, an outer input shaft, an intermediate shaft, a differential and a motor, a first-gear driven gear, a second-gear driven gear and a normally engaged gear are fixedly connected to the intermediate shaft; the inner input shaft is connected with an engine through afirst clutch; the outer input shaft is connected with the engine through a second clutch; the outer input shaft is fixedly connected with a first-gear driving gear; the first-gear driving gear is meshed with the first-gear driven gear, the inner input shaft is fixedly connected with a second-gear driving gear, the second-gear driving gear is meshed with the second-gear driven gear, the normally-meshed gear is meshed with a main reduction gear of the differential mechanism, and a motor transmission mechanism is arranged between the motor and the differential mechanism and used for transmittingpower of the motor to the differential mechanism. Two gears are used, a synchronizer is omitted, gear switching is performed through the double clutches, torque supplementing is conducted on the motorin the gear shifting process, smooth gear shifting is guaranteed, the transmission efficiency is high, the space is small, and the whole vehicle is easy to arrange.

Description

technical field [0001] The invention belongs to the field of hybrid power, in particular to a two-speed dual-clutch hybrid power system and a hybrid power vehicle. Background technique [0002] With the increasing shortage of oil supply and the increasing environmental pollution, the development and utilization of new energy vehicles has gradually become a trend. Among them, the hybrid electric vehicle in the new energy vehicle, the hybrid electric vehicle has developed rapidly in recent years, the battery technology is improving day by day, the control system is becoming more and more mature, and the major automobile manufacturers have also further increased their research and development efforts. Domestic OEMs use dual-clutch transmissions to form P2 and P2.5 configurations. However, due to the large number of gears, the dual-clutch transmission will occupy a relatively long axial space, and the control is also relatively complicated, which makes the layout of the vehicle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/445B60K6/36B60K6/38B60K6/547
CPCB60K6/445B60K6/36B60K6/38B60K6/547Y02T10/62
Inventor 陈梅郭星张子川
Owner CHONGQING TSINGSHAN IND
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