Fuel cell vehicle energy balance calibration parameter self-adaption method and system

An energy balance and fuel cell technology, applied in battery/fuel cell control devices, electric vehicles, vehicle energy storage, etc., can solve the problems of low power, economy and reliability of the whole vehicle, and achieve reasonable energy flow distribution, Excellent power performance, avoiding the effect of large power fluctuations

Active Publication Date: 2021-09-07
WUHAN GROVE HYDROGEN AUTOMOBILE CO LTD
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Problems solved by technology

[0006] The invention aims to solve the technical problem that the power, economy and reliability of the whole

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  • Fuel cell vehicle energy balance calibration parameter self-adaption method and system
  • Fuel cell vehicle energy balance calibration parameter self-adaption method and system
  • Fuel cell vehicle energy balance calibration parameter self-adaption method and system

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Embodiment Construction

[0051] In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0052] Please refer to figure 1 and figure 2 , the present embodiment provides a fuel cell vehicle energy balance calibration parameter adaptive method, including the following steps;

[0053] S1. Apply high voltage to the vehicle to determine the current driving mode. The driving mode includes: sports mode, normal mode and economical mode.

[0054] The characteristics of different driving modes are as follows:

[0055] Sports mode: focus on power performance, and require auxiliary energy to provide a large output power instantly, to make up for the problem of small loading slope of the fuel cell system during rapid acceleration, so that the driver can have a better driving experience. At this time, related concepts such as energy recovery may be wea...

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Abstract

The invention provides a fuel cell vehicle energy balance calibration parameter self-adaption method and system, and the method comprises the following steps: enabling a whole vehicle to be in high voltage, and judging the current driving mode of the vehicle, the driving mode including a motion mode, a normal mode and an economic mode; acquiring an auxiliary energy SOC initial value and an auxiliary energy SOH in the current driving mode; performing calibration according to a preset calibration algorithm to obtain a self-adaptive scale factor; and on the basis of the auxiliary energy SOC initial value, the auxiliary energy SOH and the adaptive scale factor in the current driving mode, calculating according to an adaptive rule to obtain an auxiliary energy target SOC set value in the current driving mode. The optimal control target SOC set value can be matched in different driving modes, so that the system has better dynamic property, economical efficiency and reliability. The target control SOC can be adjusted according to the driving mode, and the target control SOC can also be adjusted according to the service life condition of the auxiliary energy system.

Description

technical field [0001] The invention relates to the technical field of hydrogen energy vehicle energy management, in particular to a fuel cell vehicle energy balance calibration parameter adaptive method and system. Background technique [0002] With the increasing awareness of environmental protection, the development of hydrogen fuel vehicles is urgently accelerated, and there are more and more different power architecture solutions with the advancement of research and development and engineering. Vehicle power, economy, and reliability are very important indicators in the engineering process. Energy management strategies are directly related to these indicators and play a key role. [0003] Whether it is a hydrogen fuel cell commercial vehicle or a hydrogen fuel cell passenger vehicle, its main power source includes the main power source (hydrogen fuel cell system and boost DCDC) and auxiliary energy. The role of the energy management strategy is to manage the energy flo...

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Application Information

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IPC IPC(8): B60L58/40
CPCB60L58/40Y02T10/70
Inventor 李开寒郝义国
Owner WUHAN GROVE HYDROGEN AUTOMOBILE CO LTD
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