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Calculation method, calculation system and vehicle for energy efficiency of hybrid power system

A technology of hybrid power system and energy efficiency, which is applied to hybrid vehicles, motor vehicles, transportation and packaging, etc., and can solve the problems of poor fuel saving effect and high energy efficiency

Active Publication Date: 2021-04-27
YIWU GEELY POWERTRAIN CO LTD +1
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] An object of the present invention is to provide a calculation method for the energy efficiency of a hybrid power system, which solves the problems of high energy efficiency and poor fuel-saving effect in the prior art.

Method used

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  • Calculation method, calculation system and vehicle for energy efficiency of hybrid power system
  • Calculation method, calculation system and vehicle for energy efficiency of hybrid power system
  • Calculation method, calculation system and vehicle for energy efficiency of hybrid power system

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Embodiment Construction

[0044] figure 1 is a schematic structural diagram of a hybrid power system according to an embodiment of the present invention. figure 2 A schematic flowchart of a method for calculating the energy efficiency of the hybrid power system 100 according to an embodiment of the present invention. Among them, such as figure 1 As shown, the hybrid power system 100 of the present invention may include a first motor 11, a second motor 12, a power battery 13, an engine 14, a clutch 15 and a transmission 16, and the engine 14 is connected to the first motor 11 and the clutch 15 in sequence and then connected to Transmission 16 , the first motor 11 is connected to the second motor 12 , the first motor 11 is connected to the power battery 13 , the power battery 13 is connected to the second motor 12 , and the second motor 12 is directly connected to the transmission 16 .

[0045] Such as figure 2 As shown, the calculation method for the energy efficiency of the hybrid power system in ...

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Abstract

The invention provides a calculation method, a calculation system and a vehicle for the energy efficiency of a hybrid power system, and relates to the technical field of software. Specifically, the method for calculating the energy efficiency of the hybrid power system of the present invention includes: calculating the equivalent discharge efficiency of the power battery; identifying the driving mode of the vehicle; and obtaining the system energy efficiency by calculating the equivalent discharge efficiency of the power battery according to different driving modes. The calculation method of the energy efficiency of the hybrid power system of the present invention is calculated according to the equivalent discharge efficiency of the power battery, which avoids the problem that the energy efficiency of the calculated system is too high due to the direct use of the discharge efficiency of the battery, thereby ensuring that the vehicle is calculated according to the calculated energy efficiency. The energy efficiency of the system controls the accuracy of the power switching of the vehicle, and then achieves the purpose of saving fuel.

Description

technical field [0001] The invention relates to the technical field of software, in particular to a calculation method, a calculation system and a vehicle for the energy efficiency of a hybrid power system. Background technique [0002] The power modes of hybrid electric vehicles can be divided into pure electric mode, traditional engine mode, series mode, parallel mode, and hybrid mode. For hybrid electric vehicles equipped with dual-motor systems, most of them can support two power transmission modes, series mode and parallel mode. [0003] In order to ensure that the vehicle has the best fuel consumption, it is hoped that the vehicle can always run at the highest efficiency. A hybrid vehicle has two power transmission forms, a series mode and a parallel mode. According to the principle of the highest system efficiency, when the series system efficiency is higher than the parallel system efficiency, the vehicle runs in series mode; when the parallel system efficiency is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W40/00B60W20/20B60W20/15
CPCB60W20/20B60W40/00B60W2510/242B60W2510/244B60W20/15
Inventor 赵西伟刘义强金昶明方小军惠冰
Owner YIWU GEELY POWERTRAIN CO LTD
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