An electric vehicle automatic charging system and its control method

Abstract

The invention discloses an automatic charging system of an electric car and a control method of the automatic charging system. The automatic charging system and the control method thereof have the advantages that monitoring is started from parking of the car, a charging connection reset device is disconnected after charging of the car, a user's bill is generated, charging plug butt joint and real-time charging process monitoring are included, all related data in the whole charging process are monitored by a software system portion, a hardware mechanical portion is controlled to complete a next action, the hardware portion sends new semaphore to the software portion for new command calculation after completing a command, the software portion is combined with the hardware portion, and accordingly, systematicness and intellectuality of the whole charging system are improved; a charging interface butt joint scheme based on machine vision and a machine learning algorithm is applied, and feasibility and accuracy in butt joint are guaranteed; a three-dimensional lead screw guide rail mechanism with a long stroke is used, the range of activity of a charging connector is widened, and the charging connector is suitable for multiple car models; the automatic charging system is provided with a payment code scanner, payment of related charges can be completed through a payment bar code scanning function of a cellphone-side payment application, and accordingly, intelligent payment is achieved.

Description

technical field [0001] The invention relates to an electric vehicle automatic charging technology and a control method, in particular to a fully automatic high-precision electric vehicle automatic charging system and a control method thereof. Background technique [0002] The rapid development of China's national economy has promoted the growth of residents' car ownership. According to the National Bureau of Statistics, the average annual growth rate from 2005 to 2014 was as high as 15.61%. However, the increase in the number of automobiles has brought about problems such as the reduction of petroleum energy, environmental pollution, and urban space congestion, so electric vehicles have developed rapidly. In 2014, a total of 353,522 electric vehicles were sold in the global market, a year-on-year increase of 53%. According to statistics from the Ministry of Industry and Information Technology, from January to June 2015, China produced a total of 78,500 electric vehicles, a...

AI Technical Summary

Problems solved by technology

[0015] To sum up, the main deficiencies in the current public patents and technical solutions related to automatic charging systems include: 1. Insufficient convenience. A complete automatic charging system should include monitoring the user’s parking, charging plug Docking, charging status monitoring, device reset after charging, until the user pays for the warehouse, each step is an intelligent system. Most of the patents only involve the charging process, and there is no detailed description of the system operation before and after charging; 2. Docking Insufficient accuracy, the existing patent announcement schemes all have insufficient working range of sensors, low precision, rough algorithm, insufficient docking angle, and insufficient docking accuracy; 3. Insufficient security. Charging status detection and abnormal handling, lack of convenient and safe means of payment, resulting in reduced system use safety; 4. Insufficient flexibility, most of the mechanical structures designed in patents have relatively small strokes and can only be placed on one side of the vehicle. Different models, taller or farther bodies may exceed the stroke; 5. Not enough automation and systemization, the software and hardware levels are not clear, or only part of the software / hardware, most of the patent solutions only involve the composition of the underlying mechanical structure 6. It is not easy to be accepted by users. The docking devices involved in most patents need to be modified for electric vehicles, which not only changes the The position of the electric terminal, and because of the requirements of the docking scheme, a dedicated signal generator needs to be added to the car body to achieve it, which not only increases the cost of the user, but also may affect the appearance of the car body, which is not easy to be accepted by the user

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