Planetary gear series-parallel twin-mode hybrid vehicle drive system

A hybrid vehicle and drive system technology, applied in hybrid vehicles, motor vehicles, power plants, etc., can solve the problems of parasitic power reduction in overall vehicle efficiency, limited climbing ability, poor low-speed performance, etc., to ensure fuel economy area, high overall efficiency, and the effect of improving low-speed performance

Inactive Publication Date: 2017-07-25
JILIN UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a planetary hybrid dual-mode vehicle to overcome the problems of limited climbing ability and poor low-speed performance of the vehicle in the pure electric mode, as well as the problem of parasitic power generated by the vehicle in the high-speed area and the reduction of the overall efficiency of the vehicle. Hybrid Vehicle Drive System

Method used

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  • Planetary gear series-parallel twin-mode hybrid vehicle drive system
  • Planetary gear series-parallel twin-mode hybrid vehicle drive system
  • Planetary gear series-parallel twin-mode hybrid vehicle drive system

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Embodiment Construction

[0044] The present invention is described in detail below in conjunction with accompanying drawing:

[0045] refer to figure 1 , figure 2 , the present invention provides a planetary series dual-mode hybrid vehicle drive system, said planetary series dual-mode hybrid vehicle drive system mainly includes an engine, a front planetary row, a rear planetary row, a No. 1 clutch, a No. 2 No. clutch, overrunning clutch, backstop, brake, No. 1 motor and No. 2 motor.

[0046] refer to figure 1 , figure 2 , The front planetary row includes a power input shaft 3, a front planetary row sun gear 5, a front planetary row planetary wheel 6, a front planetary row carrier 7, and a front planetary row ring gear 9.

[0047] refer to figure 1 , figure 2 , the power input shaft 3 is a stepped shaft structure, the left end has an external spline for transmitting power from the engine 1 through the torsional damper 2 and the backstop 21, and the right end transmits power to the Front plane...

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Abstract

The invention discloses a planetary gear series-parallel twin-mode hybrid vehicle drive system and relates to the technical field of vehicles. The system comprises an engine, a front planetary gear train, a rear planetary gear train, a first clutch, a second clutch, an overrun clutch, a backstop, a brake, a first motor and a second motor. Conversion among different working modes can be achieved through combination and separation of the clutches and the brake. The system is compact in structural design, the power grades of the motors are effectively decreased, the sizes of the motors are reduced, the slope climbing performance of the vehicle in a pure electric mode is improved, and the low-speed performance of the vehicle in the pure electric mode is improved; the defect that parasitic power is generated when the vehicle travels in a high-speed area is overcome, the high-efficiency range of a hybrid power system is enlarged, and the economic efficiency of the vehicle is improved; and the problems that the acceleration performance of the vehicle is poor and the slope climbing capability is limited in a low-speed area are solved, and the dynamic property and the economic efficiency of the vehicle are improved.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a drive system for a planetary hybrid dual-mode hybrid vehicle. Background technique [0002] With the continuous aggravation of the energy crisis and the deterioration of the ecological environment, energy conservation and environmental protection have become two major themes that the international community has focused on. Governments of various countries have introduced relevant policies to encourage and promote the research and development of new energy vehicles. Among them, fuel cell vehicles and pure electric vehicles are difficult to popularize in the short term due to technical reasons. Therefore, as a transitional product, hybrid vehicles are getting more and more attention. As the most effective energy-saving vehicle solution at present, the driving system of hybrid electric vehicles has three forms: series connection, parallel connection and hybrid connection. S...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/365B60K6/445
CPCB60K6/365B60K6/445Y02T10/62Y02T10/92
Inventor 曾小华黄海瑞宋大凤杨南南王越李广含董兵兵崔皓勇王振伟孙可华
Owner JILIN UNIV
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