Method, system and device for controlling vehicle power device and storage medium

A technology of a power device and a control method, applied in the field of new energy vehicles, can solve the problems of short service life, poor economy, poor reliability and accuracy of fuel cells and power batteries, and achieve the effect of avoiding severe dynamic load changes and prolonging life.
CN108394401AActive Publication Date: 2018-08-14TSINGHUA UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TSINGHUA UNIV
Publication Date
2018-08-14

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Abstract

The invention provides a method, a system and a device for controlling extended-range fuel cell vehicle power device and a storage medium. The method includes following steps: acquiring current neededtotal power of a whole vehicle and current charge state of an energy storing device; setting output power of a fuel cell as target output power according to the current needed total power of the whole vehicle and the current charge state of the energy storing device; determining output power of the energy storing device according to the target output power of the fuel cell and the current neededtotal power of the whole vehicle. The control method can determine the output power of the energy storing device according to the output power of the fuel cell and the needed total power of the wholevehicle to enable the energy storing device to be in a passive output state, so that the energy storing device can be in a working state of shallow charging and shallow discharging; compared with a conventional state of deep charging and deep discharging, service life of the energy storing device is prolonged.
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Description

technical field

[0001] The invention relates to the technical field of new energy vehicles, in particular to a control method, system, device and storage medium for a power unit of an extended-range fuel cell vehicle. Background technique

[0002] Pure electric vehicles generally use power batteries as a single power source, with simple structure and high system efficiency, and have developed rapidly in recent years. However, the energy density of traditional power batteries is still low, and the mileage of pure electric vehicles is generally short, making it difficult to reach the cruising level of traditional internal combustion engine vehicles. At the same time, the charging speed of pure electric vehicles is relatively slow, which brings great inconvenience to its use.

[0003] Hydrogen-oxygen proton exchange membrane fuel cell is an electrochemical device that directly converts chemical energy into electrical energy. It has the advantages of high efficiency and zero em...

Claims

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