Parameter matching method for dual mode power shunt hybrid power system

A hybrid power system and parameter matching technology, which is applied in the field of parameter matching of dual-mode power-split hybrid power systems, can solve problems such as difficulty in obtaining the optimal value of design parameters, and rarely consider the influence of system efficiency characteristics, and achieve a simple and effective matching method , strong applicability

Active Publication Date: 2018-08-31
JILIN UNIV
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Problems solved by technology

However, there is currently no general and feasible design method for dual-mode power-split hybrid systems; in addition, the current parameter matching design mostly targets the basic power requirements, and rarely considers system efficiency characteristics, cycle driving conditions and The impact of the overall control idea on the matching results, it is difficult to obtain the optimal value of the design parameters

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  • Parameter matching method for dual mode power shunt hybrid power system
  • Parameter matching method for dual mode power shunt hybrid power system
  • Parameter matching method for dual mode power shunt hybrid power system

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Embodiment Construction

[0072] The applicant provides an embodiment of the present invention according to a specific urban bus development process, in order to provide a clear and complete description of the technical solution of the present invention.

[0073] Such as figure 1 As shown, the parameter matching method suitable for dual-mode power split hybrid power system includes the following steps:

[0074] 1) Calculation of efficiency of hybrid power system and determination of mode switching conditions:

[0075] Such as figure 2 As shown, the dual-mode power split hybrid power system includes engine 1, torsion damper 2, front planetary row 3, rear planetary row 4, first motor 5, second motor 6, No. 1 clutch 7, No. 2 clutch 8. Final reducer 9 and wheels 10; characterized in that: the engine 1 is connected to the planet carrier of the front planetary row 3 through the torsion damper 2, and the first motor 5 is connected to the sun gear of the front planetary row 3, The rear planetary row 4 shares the r...

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Abstract

The invention provides a parameter matching method for a dual mode power shunt hybrid power system, and the parameter design problem of the dual mode power shunt hybrid power system is solved. The method includes the following steps that, firstly, a lever model of the dual mode power shunt hybrid system is established, and efficiency characteristics and switching conditions in different modes of the system are obtained; then the dynamic performance index, the cycle driving condition, the mode switching condition, and the basic control idea are comprehensively considered, and the type selectiondesign of an engine, a motor and a battery is carried out in turn; and finally, simulation calculation is carried out by using the forward simulation model to verify the dynamic performance and economic performance of a whole vehicle. The matching method is simple and effective, saves the preliminary matching cost, shortens the development cycle, and significantly improves the dynamic performanceand economic performance of the whole vehicle.

Description

Technical field [0001] The invention belongs to the field of automobile power systems, and specifically relates to a dual-mode power split hybrid power system parameter matching method. Background technique [0002] In order to solve the energy and environmental crisis, hybrid vehicles have become a hot spot in the world's automotive industry. In the configuration of the hybrid power system, the power split hybrid power system can combine the advantages of series and parallel systems and avoid the shortcomings of both, and is the most optimized configuration. Compared with the single-mode power split hybrid system, the dual-mode hybrid system can match a smaller size motor and has a wider system high-efficiency operating range. However, the different mode switching conditions of the dual-mode configuration will inevitably affect The transmission efficiency of the system and the selection of motor parameters increase the difficulty of matching selection and design. Based on this...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/365B60K6/38G06F17/50
CPCB60K6/365B60K6/38G06F30/15
Inventor 曾小华王振伟宋大凤杨南南王越李广含黄海瑞崔皓勇董兵兵孙可华
Owner JILIN UNIV
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