Plug-in electric vehicle charging interface detection device
A charging interface, electric vehicle technology, applied in electric vehicles, vehicle components, electric traction, etc., can solve problems such as damage to electrical equipment, battery charging, insufficient connection of charging interfaces, etc.
Active Publication Date: 2016-08-10
HANGZHOU BRANCH ZHEJIANG GEELY AUTOMOBILE RES INST +2
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Problems solved by technology
[0003] The traditional electric vehicle charging interface does not have the function of detecting and judging the charging connection between the electric vehicle and the charging pile. All the connection and disconnection of the charging connection are completed directly through high voltage, which poses a great safety risk
It may cause damage to the electrical equipment of the electric vehicle due to factors such as excessive voltage and excessive current during the charging process, and it may also cause the battery to be unable to charge due to insufficient connection of the charging interface, but the driver does not know it. Wasted charging time
Method used
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[0018] In order to further explain the technical means and effects adopted by the present invention to achieve the intended purpose of the invention, the specific implementation of the plug-in electric vehicle charging interface detection device and detection method according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. And effect, detailed description is as follows.
[0019] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the preferred embodiments with reference to the drawings. Through the description of the specific implementation, the technical means and effects of the present invention to achieve the intended purpose can be understood more deeply and specifically, but the accompanying drawings are only for reference and description, and are not used to limit the present invention .
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The invention provides a charging interface detection device of a plug-in electric vehicle. The charging interface detection device comprises a vehicle-mounted storage battery, an electric vehicle plug, a vehicle control device and a charging interface detection chip, wherein the electric vehicle plug comprises a connection confirmation end and a charging control end; the charging interface detection chip comprises a voltage sampling port, a PWM (Pulse-Width Modulation) signal sampling port and an IO (Input Output) output end; the vehicle-mounted storage battery is connected with the charging interface detection chip and the connection confirmation end of the electric vehicle plug; the voltage sampling port is used for detecting actual voltage of the connection confirmation end; the PWM signal sampling port is used for sensing and detecting a PWM signal of the charging control end; and the charging interface detection chip is used for sending data obtained from the voltage sampling port and the PWM signal sampling port to the vehicle control device and sending a feedback signal of the vehicle control device to an external power supply device through the IO output end. According to the charging interface detection device provided by the invention, the situations that whether a charging interface is in full connection or not and whether the charging process is normal or not can be judged, and connection and disconnection of charging connection can be effectively controlled.
Description
technical field [0001] The invention relates to the field of automotive electronic control, in particular to a detection device for a charging interface of a plug-in electric vehicle. Background technique [0002] Fully functional charging equipment is one of the important guarantees for the reliable operation of electric vehicles. Compared with traditional cars, the energy for electric vehicles to run mostly comes from the on-board power battery, which cannot replenish energy as quickly, conveniently and non-destructively as refueling traditional cars. Electric vehicles have many characteristics such as long charging time and large charging current. . How to ensure that the interface between the electric vehicle and the external power supply equipment can be well connected before charging, can be closely coordinated during the charging process, can be disconnected smoothly after charging, and can be found in time when there is a problem with the connection And cutting off...
Claims
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IPC IPC(8): B60L11/18
CPCY02T10/70
Inventor 方文平闫涛孙文凯金启前由毅吴成明赵福全
Owner HANGZHOU BRANCH ZHEJIANG GEELY AUTOMOBILE RES INST