Dual-drive dual-control continuously variable transmission hybrid power system

A hybrid system and continuously variable transmission technology, applied in hybrid vehicles, power plants, pneumatic power plants, etc., can solve the problems of industrialization process influence, high cost, complex structure, etc., and achieve good power performance and smooth driving. flexibility, compact layout, and low system cost

Inactive Publication Date: 2009-12-09
SAIC MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are various ways of power coupling of multiple power sources, each with its own characteristics, plus automatic transmission (AT), mechanical automatic transmission (AMT), dual clutch transmission (DCT), continuously variable transmission (CVT) combination, resulting in complex structure and high cost, and its industrialization process has been affected to a certain extent

Method used

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  • Dual-drive dual-control continuously variable transmission hybrid power system
  • Dual-drive dual-control continuously variable transmission hybrid power system
  • Dual-drive dual-control continuously variable transmission hybrid power system

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Such as figure 1 As shown, a dual-drive dual-control continuously variable transmission hybrid system includes a first power source, a second power source, a motor controller 1, a gearbox 6, a drive shaft 7, a speed reducer 8 and wheels 9, the The gearbox 6 includes a first input element 61 and a second input element 62, each input element 61, 62 has three gears of low gear, neutral gear and high gear, the first power source includes the main motor 3, the main The output shaft of the motor 3 is connected to the input shaft of the first input element 61; the second power source includes the engine 2 and the ISG motor 4, the input shaft of the engine 2 is connected to the ISG motor 4, and the ISG motor 4 passes through the clutch 5 The input shaft of the second input element 62 is connected; the output ends of the first input element and the second input element are connected with the transmission shaft 7 , and the transmission shaft 7 is connected with the wheel 10 throu...

Embodiment 2

[0043] Such as figure 2 As shown, a dual-drive dual-control continuously variable transmission hybrid power system, the difference between Embodiment 2 and Embodiment 1 is that the first power source includes a main motor 3 and a power battery 10, and the main motor 3 Connected to the first input element 61 , the motor controller 1 is connected to the main motor 3 and the power battery 10 ; the second power source includes the engine 2 , and the engine 2 is connected to the second input element 62 through the clutch 5 .

Embodiment 3

[0045] Such as image 3 As shown, a dual-drive dual-control continuously variable transmission hybrid power system, the difference between Embodiment 3 and Embodiment 1 is that the first power source and the second power source are composed of a power battery 10 and two main motors 3 In the configuration, the input ends of the two main motors 3 are connected to the motor controller 1 , the output ends are respectively connected to the first input element 61 and the second input element 62 , and the power battery 10 is connected to the motor controller 3 .

[0046] The working mode of the power system of the present invention:

[0047] 1. Pure electric mode (main motor + gearbox + transmission shaft).

[0048] 2. Engine mode after a certain speed (engine+clutch+drive shaft).

[0049] 3. Series mode (engine + ISG motor + main motor + gearbox + transmission shaft).

[0050] 4. Parallel and hybrid modes (engine + ISG motor + main motor + gearbox + transmission shaft + clutch). ...

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Abstract

The invention belongs to the field of hybrid power system, more particularly to a continuously variable transmission hybrid power system. A dual-drive dual-control continuously variable transmission hybrid power system comprises a first power source and a second power source; a gearbox comprises a first input element and a second input element, and each of which has three gears including low gear, neutral gear and high gear; the output ends of the first power source and the second power source are respectively connected with the input ends of the first input element and the second input element; the output ends of the first input element and the second input element are connected with a transmission shaft which is connected with wheels via a decelerator. The invention realizes multi-gear power transmission without power interruption; the hybrid power system has simple structure, reliable control, compact arrangement and low system cost; operating efficiency of the system is improved by means of the optimization of parameters of an engine, a main electric motor and an ISG electric motor and the configuration of reasonable control strategies, thus prominently reducing oil consumption of vehicle and emission of harmful gases as well as maintaining excellent power and driving stability.

Description

technical field [0001] The invention belongs to the field of hybrid power systems, in particular to a continuously variable speed hybrid power system. Background technique [0002] In the face of increasingly serious energy shortage and environmental degradation, it is becoming a worldwide trend to seek a sustainable development model in which society, economy, resources, and environment promote each other and coordinate development. In this context, electric vehicle technology has become a hot spot in the field of automotive research; compared with electric vehicles and fuel vehicles, hybrid electric vehicles have the characteristics of high performance, low energy consumption and low pollution, as well as technical, economic and environmental aspects. The comprehensive advantages of the hybrid electric vehicle power system are various in form, generally there are three basic structures of series connection, parallel connection and hybrid connection. The advanced control s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/20B60K6/36B60K6/38
CPCY02T10/6247Y02T10/62
Inventor 姚杰张元才兰志波顾庆
Owner SAIC MOTOR
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