Range extending type electric vehicle based on solid oxide fuel cell and range extending method

Abstract

The invention discloses a range extending type electric vehicle based on a solid oxide fuel cell and a range extending method. The range extending method comprises the following steps that the solid oxide fuel cell is maintained at the working temperature; battery cells in a power storage battery are divided into at least two battery cell groups; when the electric vehicle runs, at least one of thebattery cell groups is electrically connected with a drive motor as a power battery cell group for supplying power to the drive motor; the other battery cell groups are all used as standby battery cell groups and do not supply power to the drive motor in real time; the residual electric quantity of the power battery cell group is maintained and monitored; when the residual electric quantity of the power battery cell group is lower than or equal to a preset working threshold value, the power group and the standby groups are switched, and the power storage battery is charged online through thesolid oxide fuel cell. According to the range extending type electric vehicle based on the solid oxide fuel cell and the range extending method, the endurance mileage of the electric vehicle is improved, and the required volume and quality of the power battery are greatly reduced.

Description

technical field [0001] The invention relates to new energy technology, in particular to a range-extending electric vehicle based on a solid oxide fuel cell and a range-extending method. Background technique [0002] Facing the increasingly severe climate and energy situation, electric vehicles have received more and more attention from governments due to their great advantages in energy saving and environmental protection. Electric vehicles have the advantages of economy and environmental protection. However, the current power batteries have problems such as high price, low energy density, and long charging time, which limit the large-scale promotion and application of electric vehicles. The weak battery life is also a major problem of electric vehicles. weakness. To increase the mileage of an electric vehicle, it is necessary to increase the capacity of the power battery, which brings a series of problems, such as the increase in the weight of the vehicle, the larger the c...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the prior art and solve the problems of short travel distance and insufficient battery life of general pure electric vehicles, the purpose of the present invention is to provide a solid oxide fuel cell-based extended-range electric vehicle that improves the battery life of electric vehicles.

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