V2V emergency charging device of new energy automobile and charging control method thereof

Abstract

The invention discloses a V2V emergency charging device of a new energy automobile and a charging control method thereof. The emergency charging device comprises a slow starting unit, a high-voltage relay, an input measurement unit, an output measurement unit, a charging and discharging management unit, an auxiliary power supply unit, and a discharging protocol unit and a charging protocol unit. The slow starting unit is connected with the input measurement unit; the high-voltage relay is connected with the input measurement unit and the output measurement unit respectively; and the charging and discharging management unit is connected with the high-voltage relay, the input measurement unit, the output measurement unit, the auxiliary power supply unit, and the discharging protocol unit. According to the V2V emergency charging device and the charging control method thereof, a last-ten-kilometer problem of the new energy automobile is solved; and thus the electric automobile arrives at adestination or a charging station successfully. On the basis of the energy storage advantage of the new energy automobile, an emergency power supply is provided for the new energy automobile that breaks down because of exhausting of the power to guarantee the successful driving of the new energy automobile.

Description

technical field [0001] The invention belongs to the technical field of new energy vehicle charging, and relates to an emergency charging device, in particular to a new energy vehicle V2V emergency charging device; meanwhile, the invention also relates to a charging control method of the new energy vehicle V2V emergency charging device. Background technique [0002] With the strong support of national policies and the continuous popularization of new energy vehicles, China's new energy vehicle industry has entered a new stage of large-scale development and a period of rapid growth jointly driven by policies and markets. At present, the number of new energy vehicles in China has reached 1.004 million. Public interest in electric vehicles is growing. More than 85% of survey respondents said that range and charging convenience are extremely or very important factors when considering purchasing or leasing an electric vehicle. [0003] On the one hand, due to the limitation of t...

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Problems solved by technology

[0003] On the one hand, due to the limitation of the development of battery technology, the mileage of new energy vehicles is severely restricted; on the other hand, the construction of supporting charging infrastructure is not perfect. As of May 2017, the number of public charging piles built and operated in China exceeded 161,000 , the ratio is only 6:1, and there is no guarantee that the new energy vehicle will find a charging facility in time when the battery is exhausted.

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