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An electric vehicle AC charging device and charging control method thereof

A charging control method and AC charging technology, applied to electric vehicles, battery circuit devices, circuit devices, etc., can solve problems such as electric shock risk operation, complexity, etc., and achieve the effects of high efficiency, convenient charging, and simple operation

Active Publication Date: 2019-01-15
QINGDAO TELD NEW ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides an electric vehicle AC charging device, which solves the problem of electric shock risk and complex operation in the existing charging device for electric vehicles that do not have a detection signal line CP level change circuit that needs to be charged all the time or needs to operate a strong current switch. question

Method used

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  • An electric vehicle AC charging device and charging control method thereof
  • An electric vehicle AC charging device and charging control method thereof
  • An electric vehicle AC charging device and charging control method thereof

Examples

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specific Embodiment 1

[0027] This embodiment is aimed at the electric vehicle guide circuit specified in the national standard GB / T20234.2-2011 figure 1 As shown, a specially designed AC charging device for electric vehicles.

[0028] like image 3 As shown, the present embodiment proposes an AC charging device for an electric vehicle, the AC charging device includes power lines L and N for providing electric energy; power supply interfaces connected to the power lines L and N; The second on-off switch K7 on L and N; when the second on-off switch K7 is closed, the electric energy of the power line L and N is transmitted to the power supply interface, and the power supply interface is charged, which can charge the electric vehicle, when the second on-off switch When K7 is disconnected, the power supply interface is not charged.

[0029] The AC charging device of this embodiment includes a controller, a first on-off switch K6, a state detection circuit of L and N power supply loops and a DC power s...

specific Embodiment 2

[0035] This embodiment is aimed at the provisions of the national standard GB / T20234.2-2011 figure 1 The EV lead circuit shown and the figure 2 The electric vehicle pilot circuit shown (or the electric vehicle pilot circuit with a voltage dividing resistor between the signal line CP and the grounding line PE) is a specially designed AC charging device for electric vehicles, which can be used for figure 1 The electric vehicle charging shown in the figure can also be used for figure 2 Electric car charging shown.

[0036] like Figure 4-6 As shown, the AC charging device includes all the content of the specific embodiment 1, which will not be repeated here. At the same time, the AC charging device is also equipped with a detection point 1 of the internal pilot circuit of the electric vehicle. The detection point 1 is connected to the DC power supply or the PWM signal output end of the controller after passing through the resistor R1 and the on-off switch S1. The detection p...

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Abstract

The invention discloses an electromobile alternating current charging device and a charging control method thereof. The charging device comprises a power supply loop state detection circuit, the connection state of a power supply interface and a power line is controlled according to a conduction state of a power supply loop, no electric shock risk exists, and the charging device is simple to operate. The charging device also comprises a guidance circuit detection point in an electromobile, a controller is used for judging whether the electromobile connected with the power supply interface is provided with a guidance circuit or not according to a voltage signal of the detection point, if yes, the connection state of the power supply interface and the power line is controlled according to the voltage signal of the detection point, if not, the power supply loop state is switched to detect the circuit, and the connection state of the power supply interface and the power line is controlled by detecting the conduction state of the power supply loop. According to the electromobile alternating current charging device and the charging control method thereof, the electromobile which is provided with or not provided with the guidance circuit can be compatible, various types of charging devices are unnecessarily arranged in a charging station, cost is saved, the charging device is high in application rate, the electromobile can be charged by arbitrary one of the charging devices, and a user is convenient to charge.

Description

technical field [0001] The invention relates to the technical field of electric vehicle charging, in particular to an electric vehicle AC charging device and a charging control method thereof. Background technique [0002] With the increasing awareness of environmental protection and energy saving, electric vehicles are gradually favored because they are powered by on-board power supplies, which can solve the problems of fuel vehicle exhaust emissions polluting the environment and high energy consumption. And the charging problem of electric vehicle is the problem that people pay close attention to very much, and it is related to popularization and promotion of electric vehicle. [0003] Since the manufacturers of electric vehicles are different, their internally designed pilot circuits are also different, as long as they meet the national standards. The so-called guide circuit is a circuit used to detect the connection status of the power supply interface of the charging d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00
Inventor 于德翔姜书政佘小冬许金亮丁曙光张肖瑞
Owner QINGDAO TELD NEW ENERGY CO LTD
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