A charging system ground protection detection method and device
A grounding protection and charging system technology, which is applied in the direction of measuring devices, charging stations, electric vehicle charging technology, etc., can solve the problem of low safety of PE line charging vehicles, to avoid electric shock to the human body, improve safety and reliability, and provide reliable protection services Effect
Active Publication Date: 2020-09-25
XJ POWER CO LTD +3
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] The purpose of the present invention is to provide a charging system grounding protection detection method and device to solve the problem of low safety of the charging vehicle when the connection state of the PE line is not detected in the prior art
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0040] Such as figure 1 Shown is the block diagram of the internal control circuit connected between the DC charger and the vehicle port.
[0041] In order to improve the safety performance of the whole vehicle, during the charging process of the vehicle, the voltage of the charging connection confirmation point is continuously detected, and it is judged whether the voltage at this point is within the set voltage range: if it is within the range, then judge the PE line of the charger The connection with the PE line of the vehicle is abnormal.
[0042] When the detection device is installed on the off-board charger, the voltage at the charging connection confirmation point CC1 is detected at this time, and it is judged whether it is within the set ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a charging system ground protection detecting method and device, the charging system ground protection method includes the steps that in the charging process of cars, the charging connecting verification point voltage is detected; whether the verification point voltage is in the predetermined voltage range is judged; if the verification point voltage is in the predetermined voltage range, a PE of a battery charger and a PE of the cars are connected anomalously; and if he verification point voltage is not in the predetermined voltage range, the PE of the battery chargerand the PE of the cars are connected normally. The charging system ground protection detecting device is compatible with an original charging controlling panel with an unprotected ground continuous function, a detecting circuit system does not need to be designed in addition, a voltage signal of the charging connecting verification point is as a protective and judging basis, the regulating is convenient, and the charging system ground protection detecting device can be regulated according to the actual situation. As a whole, according to the charging system ground protection detecting methodand device, more reliable protection service can be provided for the battery charger and the charging service of electric cars, the safe reliability during charging of the cars can be improved, and the danger of electric shock of human body in unforeseen circumstances can be avoided.
Description
technical field [0001] The invention belongs to the technical field of DC charging systems for electric vehicles, and in particular relates to a charging system grounding protection detection method and device. Background technique [0002] Energy and the environment have become the current focus of the world. In response to the country's call for energy conservation and emission reduction in the international community, energy-saving and environmentally friendly new energy electric vehicles have been vigorously developed. [0003] In September 2015, the State Council issued the "Guiding Opinions on Accelerating the Construction of Electric Vehicle Charging Infrastructure", deploying to vigorously promote the construction of charging facilities and solve the problem of electric vehicle charging. Adhere to pure electric drive as the main strategic orientation for the development of new energy vehicles, and in accordance with the requirements of "pile stations first", advance ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B60L53/62G01R19/165
CPCB60L53/60G01R19/16576Y02T10/70Y02T10/7072Y02T90/12
Inventor 张臻朱红岩李彩生孟凡提李红岩杨昌富单栋梁胡林林韩鑫儒牛高远贾耀云齐晓祥刘向立张亚平
Owner XJ POWER CO LTD