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A vehicle energy management method, device, vehicle and storage medium

An energy management and vehicle technology, applied in vehicle energy storage, vehicle components, battery/fuel cell control devices, etc., can solve problems such as affecting the service life, incompletely fitting the operating characteristics of fuel cells, etc., to achieve the effect of improving safety

Active Publication Date: 2022-07-26
FAW JIEFANG AUTOMOTIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the operating point of the fuel cell will still be constantly adjusted and changed with the changes in the demand for electric power of the vehicle and the allowable charging power of the power battery. Although the frequent fluctuation of the output power of the fuel cell is reduced to a certain extent, the Does not fully fit the operating characteristics of the fuel cell, affecting its service life

Method used

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  • A vehicle energy management method, device, vehicle and storage medium
  • A vehicle energy management method, device, vehicle and storage medium
  • A vehicle energy management method, device, vehicle and storage medium

Examples

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Embodiment 1

[0054] figure 2 This is a flowchart of a vehicle energy management method provided in Embodiment 1 of the present invention. This embodiment can be applied to the situation of managing the state of charge of the vehicle power battery and the output power of the fuel cell. The method can be executed by the vehicle system. like figure 2 shown, including the following steps:

[0055] Step 210: Determine the preset output power and the first correction parameter of the fuel cell according to the state of charge of the power battery and the current temperature.

[0056] The preset output power of the fuel cell may be pre-calibrated according to the total energy and state of charge of the power battery. For example, according to the total energy of the power battery, a first threshold value, a second threshold value and a third threshold value of the state of charge of the power battery are determined. If the state of charge of the power battery is less than or equal to the fir...

Embodiment 2

[0071] Figure 4 This is a flowchart of a vehicle energy management method provided in Embodiment 2 of the present invention. This embodiment is embodied on the basis of the above-mentioned embodiment. like Figure 4 As shown, in this embodiment, the method may further include:

[0072] Step 410: Determine the preset output power and the first correction parameter of the fuel cell according to the state of charge of the power battery and the current temperature.

[0073] In this embodiment, the preset output power of the fuel cell may be determined according to the state of charge of the power battery; the first correction parameter may be determined according to the state of charge of the power battery and the current temperature.

[0074] In one embodiment, the step of determining the first correction parameter of the fuel cell includes:

[0075] According to the minimum load changing interval of the fuel cell, the total energy of the power battery, and the allowable powe...

Embodiment 3

[0122] Image 6 This is a structural diagram of a vehicle energy management device provided in the third embodiment of the present invention. The device can be applied to manage the state of charge of the vehicle power battery and the output power of the fuel cell, so as to improve the service life of the fuel cell and the power supply of the vehicle. network security. The device may be implemented in software and / or hardware, and is typically integrated into a vehicle system.

[0123] like Image 6 As shown, the device includes:

[0124] A determination module 610, configured to determine the preset output power and the first correction parameter of the fuel cell according to the state of charge of the power battery and the current temperature;

[0125] A correction module 620, configured to correct the output power of the fuel cell based on the first correction parameter if the preset output power is greater than the first correction parameter, to obtain the corrected out...

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Abstract

The invention discloses a vehicle energy management method, device, vehicle and storage medium, comprising: determining a preset output power and a first correction parameter of a fuel cell according to the state of charge and current temperature of a power battery; if the preset output power and a first correction parameter are determined; If the output power is greater than the first correction parameter, the output power of the fuel cell is corrected based on the first correction parameter to obtain the corrected output power; the vehicle is controlled to run based on the corrected output power and the state of charge, Energy management of the vehicle is achieved. The above technical solution corrects the output power of the fuel cell under the state of charge of the power battery and the current temperature, and then controls the operation of the vehicle, realizes the energy management of the vehicle, and realizes that on the premise of meeting the power demand of the whole vehicle, the fuel cell can be It runs under its required output characteristics without overcharging the power battery, improving the service life of the fuel cell and the safety of the vehicle power network.

Description

technical field [0001] Embodiments of the present invention relate to fuel cell vehicle technology, and in particular, to a vehicle energy management method, device, vehicle, and storage medium. Background technique [0002] A fuel cell vehicle can be equipped with two energy sources, one being a fuel cell and the other being a power battery. The operating characteristics of fuel cells are: slow response, and it is not easy to operate with frequent load changes. However, the electricity demand of the whole vehicle has the characteristics of large variation and rapid change. Therefore, it is necessary to match the power battery to alleviate the contradiction between the electricity demand of the vehicle and the fuel cell. The purpose of vehicle energy management is to manage the output state of the fuel cell and the state of charge of the power battery, and make it run in a reasonable working state based on the operating characteristics of the fuel cell and the power batter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L58/40
CPCB60L58/40Y02T10/70
Inventor 徐靖斌纪永飞马艳红薛选峰沙彦红蔡文文
Owner FAW JIEFANG AUTOMOTIVE CO
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