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Hybrid power system energy efficiency calculation method, hybrid power system energy efficiency calculation system and vehicle

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

Active Publication Date: 2020-04-10
YIWU GEELY POWERTRAIN CO LTD +1
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  • Abstract
  • Description
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  • 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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  • Hybrid power system energy efficiency calculation method, hybrid power system energy efficiency calculation system and vehicle
  • Hybrid power system energy efficiency calculation method, hybrid power system energy efficiency calculation system and vehicle
  • Hybrid power system energy efficiency calculation method, hybrid power system energy efficiency calculation system and vehicle

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Embodiment Construction

[0043] 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. The engine 14 is connected to the first motor 11 and the clutch 15 in turn and then connected to the In the transmission 16 , the first motor 11 is connected with the second motor 12 , the first motor 11 is connected with the power battery 13 , the power battery 13 is connected with the second motor 12 , and the second motor 12 is directly connected with the transmission 16 .

[0044] like figure 2 As shown, the method for calculating the energy efficiency of the hybrid power sy...

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Abstract

The invention provides a hybrid power system energy efficiency calculation method, a hybrid power system energy efficiency calculation system and a vehicle, and relates to the technical field of software. The hybrid power system energy efficiency calculation method specifically comprises the following steps: calculating the equivalent discharge efficiency of a power battery; identifying a drivingmode of the vehicle; and calculating the system energy efficiency by combining the equivalent discharge efficiency of the power battery according to different driving modes. The hybrid power system energy efficiency calculation method calculates according to the equivalent discharge efficiency of the power battery, so the problem that the calculated energy efficiency of the system is too high dueto the fact that the discharging efficiency of the battery is directly adopted is solved, the accuracy of switching the power of the vehicle according to the calculated energy efficiency of the systemis guaranteed, and then the purpose of saving oil is achieved.

Description

technical field [0001] The invention relates to the technical field of software, and 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 vehicles equipped with a dual-motor system, most of them can support two power transmission modes: series mode and parallel mode. [0003] In order to ensure that the vehicle has optimal fuel consumption, it is expected that the vehicle will always operate at the highest efficiency. The hybrid vehicle has two forms of power transmission in series mode and parallel mode. According to the principle of the highest system efficiency, when the efficiency of the series system is higher than that of the parallel system, the vehicle runs in series mode; when the efficiency of the p...

Claims

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Application Information

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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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