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Plug-in four-wheel-drive hybrid vehicle and power transmission system thereof

A technology for power transmission systems and hybrid vehicles, which is applied in the direction of hybrid vehicles, motor vehicles, power plants, etc., and can solve the problem of complex layout and structure of hybrid drive systems, affecting performance and driving comfort, and prone to whistling and gear knocking To improve NVH performance and driving comfort, small size and reduce size

Inactive Publication Date: 2015-11-18
CHONGQING CHANGAN AUTOMOBILE CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The motor is directly connected to the input or output shaft of the transmission through gears. Since a gear needs to be set between the motor and the input or output shaft of the transmission, the layout of the hybrid drive system is complicated, the size is large, and it is prone to whistling and gears. Knocking phenomenon affects NVH performance and driving comfort
[0004] In summary, how to solve the problem of complex layout and large size of the hybrid system of plug-in four-wheel drive hybrid electric vehicle has become a problem to be solved urgently by those skilled in the art

Method used

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  • Plug-in four-wheel-drive hybrid vehicle and power transmission system thereof
  • Plug-in four-wheel-drive hybrid vehicle and power transmission system thereof

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Embodiment Construction

[0022] The core of the present invention is to provide a power transmission system of a plug-in four-wheel drive hybrid vehicle, which simplifies its structural arrangement and reduces its size.

[0023] The invention also provides a plug-in four-wheel-drive hybrid vehicle including the power transmission system, which optimizes the layout structure and improves the NVH performance and driving comfort of the vehicle.

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] Please refer to figure 1 and fi...

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Abstract

The invention discloses a power transmission system of a four-wheel-drive hybrid vehicle. The power transmission system comprises a front drive system and a rear drive system. The front drive system comprises an engine, an electric generator, a front drive motor and a speed reducer, the front drive motor is in transmission connection with a front wheel differential in the speed reducer, the engine is connected with a front wheel speed reducer in the speed reducer, a clutch is arranged between coaxial gears connected with the engine and the front wheel differential in the speed reducer, and the engine is in transmission connection with the electric generator. On the premise of accomplishing the hybrid drive mode, the existing dual-clutch transmission is replaced by the gear reducer having the fixed transmission ratio, therefore the transmission structure is simplified, the speed reduce is small in size when being compared with the double-clutch transmission, and therefore the size of the power transmission system is decreased. The invention also discloses the four-wheel-drive hybrid vehicle comprising the power transmission system.

Description

technical field [0001] The invention relates to the technical field of hybrid electric vehicles, in particular to a power transmission system of a plug-in four-wheel drive hybrid electric vehicle. It also relates to a plug-in four-wheel drive hybrid vehicle including the powertrain. Background technique [0002] Before the industrialization of pure electric vehicles, hybrid electric vehicles were a type of vehicle that could not only satisfy energy conservation and environmental protection, but also achieve large-scale industrialization. Long-distance driving in pure electric mode, driving in hybrid mode after the battery is exhausted, and charging the battery in a timely manner is considered to be the most potential new energy vehicle technology to solve the energy crisis and vehicle emission pollution. The use of plug-in hybrid technology to realize the environmental protection and energy saving of four-wheel drive vehicles has become one of the research hotspots of major...

Claims

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Application Information

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IPC IPC(8): B60K6/36B60K6/52
CPCY02T10/62
Inventor 李浚叶李宗华宁大伟熊免良袁昌荣梁晓龙苏岭
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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