Hybrid vehicle energy managing method and system considering service life of battery

A hybrid vehicle, battery life technology, applied in hybrid vehicles, motor vehicles, transportation and packaging, etc., can solve the problems of unhealthy operation of batteries, inability to coordinate control of fuel consumption cost, and no consideration of battery life cost, etc. The effect of improving fuel economy and battery life, reducing battery life costs, and high real-time computing time

Inactive Publication Date: 2015-05-20
TONGJI UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

If you only care about fuel consumption in energy management, it will make the battery in an unhealthy operating state and affect its normal use time
[0005] The document Battery State-of-Health Perceptive Energy Management for Hybrid Electric Vehicles (S.Ebbesen, P.Elbert and L.Guzzella,.IEEE T

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  • Hybrid vehicle energy managing method and system considering service life of battery
  • Hybrid vehicle energy managing method and system considering service life of battery
  • Hybrid vehicle energy managing method and system considering service life of battery

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Embodiment Construction

[0045] The present invention will be described in detail below with reference to the drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation mode and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0046] Such as figure 1 As shown, this embodiment provides an energy management method for hybrid electric vehicles that considers battery life. According to current vehicle driving information and battery state information, a model predictive control method is used to coordinately control vehicle fuel consumption and battery capacity attenuation cost functions to obtain the best The specific steps are as follows:

[0047] In step S1, the current vehicle operating state data and battery operating state data are collected. The vehicle operating state data includes vehicle speed, engine speed, mot...

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Abstract

The invention relates to a hybrid vehicle energy managing method considering the service life of a battery. The method includes the following steps of firstly, collecting current vehicle running state data and battery running state data; secondly, establishing a vehicle model, and predicting the vehicle running state and the battery running state within a period of time in the future according to the vehicle model; thirdly, calculating the sum of battery capacity attenuation cost and the sum of oil consumption cost within a period of time in the future; fourthly, establishing a multi-target control model, and obtaining the optimal control amount meeting the optimization target through a multi-target coordination control algorithm, wherein the multi-target control model comprises a target function J* and a constraint condition C; fifthly, forming a control signal according to the optimal control amount, and controlling the running state of a vehicle. Compared with the prior art, the method has the advantages of being good in control effect, capable of effectively prolonging the service life of the battery, reducing the total use cost of the vehicle, and the like.

Description

Technical field [0001] The present invention relates to the technical field of energy management for hybrid electric vehicles, and in particular to a hybrid electric vehicle energy management method and system considering battery life. Background technique [0002] The rising prices of petrochemical fuels and the emergence of environmental problems have promoted the development of environmentally friendly and energy-saving new green vehicles. Pure electric vehicles, hybrid vehicles and fuel cell vehicles can all be used as new types of green vehicles. Compared with traditional vehicles, they have higher efficiency and lower emissions, which has become a new trend in the development of the automotive industry. Pure electric vehicles are not yet mature enough in power battery technology, such as insufficient endurance, poor battery safety, and battery life, which cannot be widely used in applications; fuel cell vehicles are due to technical obstacles such as fuel storage and energy...

Claims

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Application Information

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IPC IPC(8): B60W10/26B60W10/06B60W10/08B60W20/00B60W20/11B60W20/13
CPCB60W10/06B60W10/08B60W10/26B60W20/10B60W2510/244B60W2710/0605B60W2710/083B60W2710/18Y02T10/62
Inventor 王峻麻斯韦
Owner TONGJI UNIV
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