Method and device for controlling range extender starting and range extending type electric vehicle

Abstract

The invention discloses a method and device for controlling range extender starting and a range extending type electric vehicle, and relates to the technical field of electric vehicles. The purpose isto determine whether a range extender is controlled to be started or not according to the current environment where the range extending type electric vehicle is located, so that it is ensured that the range extending type electric vehicle can be suitable for the environment having strict requirements for exhaust emission and noise pollution. The method includes the steps of receiving current position information, sent by a car navigation system, of the range extending type electric vehicle; obtaining the current remaining power of a power battery, and determining whether preset conditions forstarting the range extender are met or not according to the current remaining power and the current position information; and if the preset conditions for starting the range extender are met, controlling to start the range extender. The method and device are applicable to the start-up process of the range extender controlled by a vehicle controller VCU.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a method and device for controlling the start of a range extender and a range-extending electric vehicle. Background technique [0002] In recent years, with the continuous development of society and the continuous improvement of people's living standards, people's demand for cars has also increased. Due to the shortage of energy and the environmental pollution caused by traditional cars, the Electric vehicles came into being. Although pure electric vehicles have the characteristics of zero emission and zero pollution, due to the inability to effectively increase the energy density of power batteries at this stage, the cruising range of pure electric vehicles cannot meet people's needs, and the emergence of extended-range electric vehicles To a certain extent, this problem is solved: the range extender in the extended-range electric vehicle can provide electric energy ...

AI Technical Summary

Problems solved by technology

Although pure electric vehicles have the characteristics of zero emission and zero pollution, due to the inability to effectively increase the energy density of power batteries at this stage, the cruising range of pure electric vehicles cannot meet people's needs, and the emergence of extended-range electric vehicles To a certain extent, this problem is solved: the range extender in the extended-range electric vehicle can provide electric energy for the drive motor by burning fuel when the remaining power of the power battery is insufficient, thereby effectively improving the cruising range of the extended-range electric vehicle

However, because the range extender will emit exhaust gas and generate noise during the process of burning fuel to provide electric energy for the drive motor, therefore, when the range extender electric vehicle is in an environment with strict requirements on exhaust emissions and noise pollution, only Determine whether to control the start of the range extender according to the remaining power of the power battery or the driving power of the drive motor, which will cause certain pollution to the current environment of the extended-range electric vehicle, which is contrary to the environmental protection concept of the extended-range electric vehicle

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