CN104467079A - Electric vehicle charging method and equipment - Google Patents

Electric vehicle charging method and equipment Download PDF

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Publication number
CN104467079A
CN104467079A CN201410653045.9A CN201410653045A CN104467079A CN 104467079 A CN104467079 A CN 104467079A CN 201410653045 A CN201410653045 A CN 201410653045A CN 104467079 A CN104467079 A CN 104467079A
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CN
China
Prior art keywords
motor vehicle
charge mode
temperature
charge
duty ratio
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CN201410653045.9A
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Chinese (zh)
Inventor
张雷
郎林
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奇瑞汽车股份有限公司
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Priority to CN201410653045.9A priority Critical patent/CN104467079A/en
Publication of CN104467079A publication Critical patent/CN104467079A/en

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The invention discloses an electric vehicle charging method and equipment, and belongs to the electronic field of automobiles. The method comprises the steps that when an impulse wave sent by a control box is received, the duty ratio of the impulse wave is calculated; a slow charging mode of an electric vehicle is determined on the basis of the duty ratio of the impulse wave; when the slow charging mode of the electric vehicle is determined to be a charging mode II, output current of a battery charger of the electric vehicle is reduced, first current is obtained, and the first current is smaller than rated current of the battery charger; the electric vehicle is charged by the first current. The equipment comprises a computation module, a determination module, a reduction module and a first charging module. Different impulse wave duty ratios are set for the charging mode II and a charging mode III which are included by slow charging, so that the charging mode II and the charging mode III are distinguished, the output current of the battery charger is reduced during the charging mode II, and the charging safety protection reliability of the electric vehicle is improved.

Description

Electric vehicle charging method and apparatus
Technical field
The present invention relates to vehicle electric field, particularly a kind of electric vehicle charging method and apparatus.
Background technology
In automotive field, in order to save petroleum resources and reduce environmental pollution, motor vehicle more and more receives the concern of people.And at present, when charging to motor vehicle, the mode relatively extensively adopted is trickle charge.Trickle charge adopts reduced-current to be that the battery of motor vehicle charges, less on battery life impact, but the charging interval is longer, needs to take a parking stall for a long time and charges.
In addition, for trickle charge, define three kinds of charge modes in GB GB/T20234-2001, the safety system of charge mode one is lower, does not advise using, so, carry out charge mode mainly charge mode two and the charge mode three of trickle charge at present.Charge mode three is carried out being connected charging with motor vehicle by the hand-held seven apertures in the human head charging gun head that charging pile is drawn, charge mode two is connected with motor vehicle by the seven apertures in the human head charging gun head of the external wire harness charge port one end be equipped with motor vehicle, carried out being connected charging by three hole plugs of the external wire harness charge port other end with the Three-hole socket of charging pile.And for charge mode two, the Three-hole socket of charging pile can be the family expenses Three-hole socket of 16A for electric current, that is to say, can be directly inserted on the family expenses Three-hole socket that electric current is 16A by three hole plugs of the external wire harness charge port other end.When family expenses Three-hole socket be underproof socket or misplug on the socket that 10A turns 16A time, there will be the potential safety hazards such as socket is burnt, power line is burnt, reduce the safeguard protection reliability of electric vehicle charging.
Summary of the invention
In order to solve the problem of prior art, embodiments provide a kind of electric vehicle charging method and apparatus.Described technical scheme is as follows:
On the one hand, provide a kind of electric vehicle charging method, described method comprises:
When receiving the impulse wave fastening control box transmission, calculate the duty ratio of described impulse wave;
Based on the duty ratio of described impulse wave, determine that motor vehicle carries out the charge mode of trickle charge;
When the charge mode determining that described motor vehicle carries out trickle charge is charge mode two, reduce the charger output current of described motor vehicle, obtain the first electric current, described first electric current is less than the rated current of charger;
By described first electric current, described motor vehicle is charged.
Alternatively, the described duty ratio based on described impulse wave, determine that motor vehicle carries out the charge mode of trickle charge, comprising:
If the duty ratio of described impulse wave is the first duty ratio, then determine that the charge mode that described motor vehicle carries out trickle charge is charge mode two;
If the duty ratio of described impulse wave is the second duty ratio, then determine that the charge mode that described motor vehicle carries out trickle charge is charge mode three.
Alternatively, the described duty ratio based on described impulse wave, after determining that motor vehicle carries out the charge mode of trickle charge, also comprises:
When the charge mode determining that described motor vehicle carries out trickle charge is charge mode three, the charger output current controlling described motor vehicle is described rated current;
By described rated current, described motor vehicle is charged.
Alternatively, the impulse wave fastening control box transmission described in sends by controlling confirmation signal loop.
Alternatively, described method also comprises:
Detect the first temperature and the second temperature, described first temperature is the copper sheet temperature for plug moderate heat line contact, described second temperature is the described copper sheet temperature for zero line contact in plug, described for plug for described in fasten control box place power supply unit for plug;
If described first temperature is greater than temperature threshold, or described second temperature is greater than described temperature threshold, then control described motor vehicle and stop charging.
On the other hand, provide a kind of electric vehicle charging equipment, described equipment comprises:
Computing module, for when receiving the impulse wave fastening control box transmission, calculates the duty ratio of described impulse wave;
Determination module, for the duty ratio based on described impulse wave, determines that motor vehicle carries out the charge mode of trickle charge;
Reduce module, for when the charge mode determining that described motor vehicle carries out trickle charge is charge mode two, reduce the charger output current of described motor vehicle, obtain the first electric current, described first electric current is less than the rated current of charger;
First charging module, for by described first electric current, charges to described motor vehicle.
Alternatively, described determination module comprises:
First determining unit, if be the first duty ratio for the duty ratio of described impulse wave, then determines that the charge mode that described motor vehicle carries out trickle charge is charge mode two;
Second determining unit, if be the second duty ratio for the duty ratio of described impulse wave, then determines that the charge mode that described motor vehicle carries out trickle charge is charge mode three.
Alternatively, described equipment also comprises:
First control module, for when the charge mode determining that described motor vehicle carries out trickle charge is charge mode three, the charger output current controlling described motor vehicle is described rated current;
Second charging module, for by described rated current, charges to described motor vehicle.
Alternatively, the impulse wave fastening control box transmission described in sends by controlling confirmation signal loop.
Alternatively, described equipment also comprises:
Detection module, for detecting the first temperature and the second temperature, described first temperature is the copper sheet temperature for plug moderate heat line contact, and described second temperature is the described copper sheet temperature for zero line contact in plug, described for plug for described in fasten control box place power supply unit for plug;
Second control module, if be greater than temperature threshold for described first temperature, or described second temperature is greater than described temperature threshold, then control described motor vehicle and stop charging.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
In embodiments of the present invention; the charge mode two comprise trickle charge and charge mode three arrange different impulse wave duty ratios respectively; when the duty ratio of the impulse wave by receiving; when determining that the charge mode that motor vehicle carries out trickle charge is charge mode two; reduce the charger output current of motor vehicle; obtain the first electric current; because the first electric current is less than the rated current of charger; like this; by the first electric current, motor vehicle is charged; the appearance of potential safety hazard can be reduced, and then improve the safeguard protection reliability of electric vehicle charging.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of electric vehicle charging method flow diagram that the embodiment of the present invention one provides;
Fig. 2 is a kind of electric vehicle charging method flow diagram that the embodiment of the present invention two provides;
Fig. 3 is the charging circuit schematic diagram of a kind of charge mode two that the embodiment of the present invention two provides;
Fig. 4 is the charging circuit schematic diagram of a kind of charge mode three that the embodiment of the present invention two provides;
Fig. 5 is a kind of electric vehicle charging device structure schematic diagram that the embodiment of the present invention three provides.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment one
Fig. 1 is a kind of electric vehicle charging method flow diagram that the embodiment of the present invention provides.See Fig. 1, the method comprises:
Step 101: when receiving the impulse wave fastening control box transmission, calculate the duty ratio of this impulse wave.
Step 102: based on the duty ratio of this impulse wave, determines that motor vehicle carries out the charge mode of trickle charge.
Step 103: when the charge mode determining that this motor vehicle carries out trickle charge is charge mode two, reduce the charger output current of this motor vehicle, obtain the first electric current, the first electric current is less than the rated current of charger.
Step 104: by the first electric current, charges to this motor vehicle.
In embodiments of the present invention; the charge mode two comprise trickle charge and charge mode three arrange different impulse wave duty ratios respectively; when the duty ratio of the impulse wave by receiving; when determining that the charge mode that motor vehicle carries out trickle charge is charge mode two; reduce the charger output current of motor vehicle; obtain the first electric current; because the first electric current is less than the rated current of charger; like this; by the first electric current, motor vehicle is charged; the appearance of potential safety hazard can be reduced, and then improve the safeguard protection reliability of electric vehicle charging.
Alternatively, based on the duty ratio of this impulse wave, determine that motor vehicle carries out the charge mode charged, comprising:
If the duty ratio of this impulse wave is the first duty ratio, then determine that the charge mode that this motor vehicle carries out trickle charge is charge mode two;
If the duty ratio of this impulse wave is the second duty ratio, then determine that the charge mode that this motor vehicle carries out trickle charge is charge mode three.
Alternatively, based on the duty ratio of this impulse wave, after determining that motor vehicle carries out the charge mode of trickle charge, also comprise:
When the charge mode determining that this motor vehicle carries out trickle charge is charge mode three, the charger output current controlling this motor vehicle is rated current;
By this rated current, motor vehicle is charged.
Alternatively, the impulse wave fastening control box transmission sends by controlling confirmation signal loop.
Alternatively, the method also comprises:
Detect the first temperature and the second temperature, the first temperature is the copper sheet temperature of confession plug moderate heat line contact, and the second temperature is the copper sheet temperature of zero line contact in this confession plug, is the confession plug fastening control box place power supply unit for plug;
If the first temperature is greater than temperature threshold, or the second temperature is greater than temperature threshold, then control this motor vehicle and stop charging.
Above-mentioned all alternatives, all can form optional embodiment of the present invention according to combining arbitrarily, this is no longer going to repeat them for the embodiment of the present invention.
Embodiment two
Fig. 2 is a kind of electric vehicle charging method flow diagram that the embodiment of the present invention provides.See Fig. 2, the method comprises:
Step 201: when power supply unit is determined to be connected with electric vehicle charging, the control box of fastening in this power supply unit sends impulse wave to motor vehicle.
Layout is not had to fasten control box due in the charge mode one that trickle charge comprises, that motor vehicle is directly connected with power supply unit, reduce the security reliability of charging, general suggestion uses, therefore, in embodiments of the present invention, charge mode two and charge mode three are mainly comprised to the charge mode that motor vehicle carries out trickle charge.Because external wire harness charge port one end of charge mode two is three hole plugs, so, the three hole plugs of external wire harness charge port one end of charge mode two can directly be inserted on family expenses Three-hole socket, and charge mode three is the seven apertures in the human head charging gun heads of being drawn by charging pile is connected with motor vehicle, as shown in Figure 3 and Figure 4, Fig. 3 is the charging circuit schematic diagram of charge mode two, and Fig. 4 is the charging circuit schematic diagram of charge mode three.
In figure 3, the power supply unit of the charging pile of charge mode two and the external wire harness charge port composition embodiment of the present invention, charging pile can be the Three-hole socket etc. of family expenses Three-hole socket, charging parking position.Charging pile is connected with the three hole plugs of external wire harness charge port one end, the live wire contact of external wire harness charge port three hole plug and zero line contact are provided with thermocouple, for the copper sheet temperature of the copper sheet temperature and zero line contact that detect live wire contact, and also comprise in external wire harness charge port and fasten control box, for sending impulse wave to motor vehicle.The other end of external wire harness charge port is seven apertures in the human head charging gun head, and the seven apertures in the human head socket for the internal wiring bundle charge port with motor vehicle is connected, and internal wiring bundle charge port is connected with the battery of motor vehicle by car load low voltage wiring harness.BMS (Battery Management System is comprised in the battery of motor vehicle; Battery management system), for identifying that motor vehicle carries out the charge mode of trickle charge, and based on the temperature that thermocouple detects, safeguard protection is carried out to motor vehicle.
In the diagram, the charging pile of charge mode three is the power supply unit of the embodiment of the present invention, and this charging pile is the charging pile of charging parking position, this charging pile can draw seven apertures in the human head charging gun head, and comprise in this charging pile and fasten control box, for sending impulse wave to motor vehicle, in addition, the live wire contact of this charging pile seven apertures in the human head charging gun head and zero line contact are provided with thermocouple, for the copper sheet temperature of the copper sheet temperature and zero line contact that detect live wire contact.The seven apertures in the human head charging gun head of this charging pile is connected with the seven apertures in the human head socket of the internal wiring bundle charge port of motor vehicle, and internal wiring bundle interface is connected with the battery of motor vehicle by car load low voltage wiring harness.Comprising BMS in the battery of motor vehicle, for identifying that motor vehicle carries out the charge mode of trickle charge, and based on the temperature that thermocouple detects, safeguard protection being carried out to motor vehicle.
In addition, in figs. 3 and 4, the contact that each plug, rifle head or socket comprise has corresponding numbering and function, and is all GB definition, specific as follows:
L: live wire contact, provides AC power;
N: zero line contact;
PE: protective earthing, connects power supply unit ground wire and vehicle chassis ground wire;
CC: charging connects confirmation;
CP: control to confirm;
NC1, NC2: contact for subsequent use, can need specifically to expand to power contacts according to application.
Therefore, in embodiments of the present invention, when the plug of power supply unit is inserted on the seven apertures in the human head socket of motor vehicle, by the CC signal in power supply unit, can determine that power supply unit is connected with electric vehicle charging.Now, fastening control box and can send impulse wave to motor vehicle in power supply unit.
In addition, the impulse wave fastening control box transmission is sent by CP signal circuit, without the need to increasing extra contact, reduces the cost of electric vehicle charging.And fastening control box is adopt PWM (PulseWidth Modulation; Pulse width modulation) control method, the impulse wave fastening control box transmission is PWM ripple.
Step 202: when motor vehicle receives the impulse wave fastening control box transmission, calculate the duty ratio of described impulse wave.
In embodiments of the present invention, the charge mode of trickle charge is carried out in order to distinguish motor vehicle, in advance for charge mode two and charge mode three, different impulse wave duty ratios is set, namely, the impulse wave duty ratio arranging charge mode two correspondence is the first duty ratio, and the impulse wave duty ratio arranging charge mode three correspondence is the second duty ratio.So when motor vehicle receives the impulse wave fastening control box transmission, the BMS in motor vehicle can calculate the duty ratio of this impulse wave, and then determines that this motor vehicle carries out the charge mode of trickle charge.
Such as, the first duty ratio can be 23%-27%, and the accuracy of waveform of the impulse wave of charge mode two correspondence can be 1000Hz, and duty ratio precision can be ± 1%.Second duty ratio can be 14%-18%, and the accuracy of waveform of the impulse wave of charge mode three correspondence can be 1000Hz, and duty ratio precision can be ± 1%.
Step 203: based on the duty ratio of impulse wave, determines that this motor vehicle carries out the charge mode of trickle charge.
Particularly, if the duty ratio of this impulse wave is the first duty ratio, then determine that the charge mode that this motor vehicle carries out trickle charge is charge mode two; If the duty ratio of this impulse wave is the second duty ratio, then determine that the charge mode that this motor vehicle carries out trickle charge is charge mode three.
Step 204: when the charge mode determining that this motor vehicle carries out trickle charge is charge mode two, reduce the charger output current of this motor vehicle, obtain the first electric current, the first electric current is less than the rated current of charger.
Due in charge mode two, can three hole plugs of external wire harness charge port be inserted on family expenses Three-hole socket, so, in order to avoid motor vehicle carry out trickle charge time, the socket of power supply unit is defective etc., and reason causes potential safety hazard, when the charge mode determining that this motor vehicle carries out trickle charge is charge mode two, need the charger output current reducing this motor vehicle.And further, rule of thumb, the size of the first electric current can also be set, such as, the first electric current can be a value in 0 ~ 10A, based on different manufacturers, can arrange the first different electric currents, and the embodiment of the present invention is not specifically limited this.
Further, when the charge mode determining that this motor vehicle carries out trickle charge is charge mode three, the charger output current controlling this motor vehicle is rated current; By this rated current, motor vehicle is charged.
Because charge mode three is connected with the seven apertures in the human head socket of motor vehicle by the seven apertures in the human head charging gun head that charging pile is drawn, without the need to using household socket, so, occur that the probability of potential safety hazard is smaller, so, the charger output current that can arrange this motor vehicle is rated current, that is to say, the maximum output current of this charger, like this, quick charge can be carried out to motor vehicle, reduce the charging interval.
Step 205: by the first electric current, charges to this motor vehicle.
Due in electric vehicle charging process, to contact with the copper sheet in socket based on contact to carry electric current, this contact belongs to low-pressure contact, trickle electricity fire arc is very easily in use produced because of the loose contact of contact, these electric fiery arcs again can copper sheet further in ablation socket, cause the contact-making surface of copper sheet and contact more and more less, exacerbate the generation of electric fiery arc further.In addition, when in contact and socket, the contact area of copper sheet reduces, the temperature of contact also can increase, and causes the hidden danger of fire.So the embodiment of the present invention can also in view of the situation, the fail safe of protection electric vehicle charging further.Be specially: detect the first temperature and the second temperature, the first temperature is the copper sheet temperature of confession plug moderate heat line contact, and the second temperature is the copper sheet temperature of zero line contact in power contacts, is the confession plug fastening control box place power supply unit for plug; If the first temperature is greater than temperature threshold, or the second temperature is greater than temperature threshold, then control motor vehicle and stop charging.
Wherein, first temperature can be measured by the thermocouple on live wire contact, second temperature can be measured by the thermocouple on zero line contact, and the first temperature is sent in the BMS in motor vehicle by NC1 signal circuit, and in the BMS the second temperature being sent in motor vehicle by NC2 signal circuit, judge whether that controlling motor vehicle stops charging by the BMS in motor vehicle.
In addition, when motor vehicle adopt the charge mode two of trickle charge to carry out charging and controls motor vehicle stop charging time, can switch disconnection in control chart 3; When motor vehicle adopt the charge mode three of trickle charge to carry out charging and controls motor vehicle stop charging time, can switch disconnection in control chart 4.
It should be noted that, temperature threshold arranges in advance, and temperature threshold obtains based on empirical value, and such as, temperature threshold can be 40 degree, and the size of the embodiment of the present invention to temperature threshold is not specifically limited.
In embodiments of the present invention; the charge mode two comprise trickle charge and charge mode three arrange different impulse wave duty ratios respectively; when the duty ratio of the impulse wave by receiving; when determining that the charge mode that motor vehicle carries out trickle charge is charge mode two; reduce the charger output current of motor vehicle; obtain the first electric current; because the first electric current is less than the rated current of charger; like this; by the first electric current, motor vehicle is charged; the appearance of potential safety hazard can be reduced, and then improve the safeguard protection reliability of electric vehicle charging.
Embodiment three
Fig. 5 is a kind of electric vehicle charging device structure schematic diagram that the embodiment of the present invention provides.See Fig. 5, this equipment comprises: computing module 501, determination module 502, reduction module 503 and the first charging module 504;
Computing module 501, for when receiving the impulse wave fastening control box transmission, calculates the duty ratio of this impulse wave;
Determination module 502, for the duty ratio based on this impulse wave, determines that motor vehicle carries out the charge mode of trickle charge;
Reduce module 503, for when the charge mode determining that this motor vehicle carries out trickle charge is charge mode two, reduce the charger output current of this motor vehicle, obtain the first electric current, the first electric current is less than the rated current of charger;
First charging module 504, for by the first electric current, charges to this motor vehicle.
Alternatively, determination module 502 comprises:
First determining unit, if be the first duty ratio for the duty ratio of this impulse wave, then determines that the charge mode that this motor vehicle carries out trickle charge is charge mode two;
Second determining unit, if be the second duty ratio for the duty ratio of this impulse wave, then determines that the charge mode that this motor vehicle carries out trickle charge is charge mode three.
Alternatively, this equipment also comprises:
First control module, for when the charge mode determining that this motor vehicle carries out trickle charge is charge mode three, the charger output current controlling this motor vehicle is rated current;
Second charging module, for by rated current, charges to this motor vehicle.
Alternatively, the impulse wave fastening control box transmission sends by controlling confirmation signal loop.
Alternatively, this equipment also comprises:
Detection module, for detecting the first temperature and the second temperature, the first temperature is the copper sheet temperature of confession plug moderate heat line contact, and the second temperature is the copper sheet temperature for zero line contact in plug, is the confession plug fastening control box place power supply unit for plug;
Second control module, if be greater than temperature threshold for the first temperature, or the second temperature is greater than temperature threshold, then control this motor vehicle and stop charging.
In embodiments of the present invention; the charge mode two comprise trickle charge and charge mode three arrange different impulse wave duty ratios respectively; when the duty ratio of the impulse wave by receiving; when determining that the charge mode that motor vehicle carries out trickle charge is charge mode two; reduce the charger output current of motor vehicle; obtain the first electric current; because the first electric current is less than the rated current of charger; like this; by the first electric current, motor vehicle is charged; the appearance of potential safety hazard can be reduced, and then improve the safeguard protection reliability of electric vehicle charging.
It should be noted that: the electric vehicle charging equipment that above-described embodiment provides is when electric vehicle charging, only be illustrated with the division of above-mentioned each functional module, in practical application, can distribute as required and by above-mentioned functions and be completed by different functional modules, internal structure by equipment is divided into different functional modules, to complete all or part of function described above.In addition, the electric vehicle charging equipment that above-described embodiment provides and electric vehicle charging embodiment of the method belong to same design, and its specific implementation process refers to embodiment of the method, repeats no more here.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can have been come by hardware, the hardware that also can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. an electric vehicle charging method, is characterized in that, described method comprises:
When receiving the impulse wave fastening control box transmission, calculate the duty ratio of described impulse wave;
Based on the duty ratio of described impulse wave, determine that motor vehicle carries out the charge mode of trickle charge;
When the charge mode determining that described motor vehicle carries out trickle charge is charge mode two, reduce the charger output current of described motor vehicle, obtain the first electric current, described first electric current is less than the rated current of charger;
By described first electric current, described motor vehicle is charged.
2. the method for claim 1, is characterized in that, the described duty ratio based on described impulse wave, determines that motor vehicle carries out the charge mode of trickle charge, comprising:
If the duty ratio of described impulse wave is the first duty ratio, then determine that the charging module that described motor vehicle carries out trickle charge is charge mode two;
If the duty ratio of described impulse wave is the second duty ratio, then determine that the charge mode that described motor vehicle carries out trickle charge is charging module three.
3. the method for claim 1, is characterized in that, the described duty ratio based on described impulse wave, after determining that motor vehicle carries out the charge mode of trickle charge, also comprises:
When the charge mode determining that described motor vehicle carries out trickle charge is charge mode three, the charger output current controlling described motor vehicle is described rated current;
By described rated current, described motor vehicle is charged.
4. the method for claim 1, is characterized in that, described in fasten control box send impulse wave be by control confirmation signal loop send.
5. the method as described in claim as arbitrary in claim 1-4, is characterized in that, described method also comprises:
Detect the first temperature and the second temperature, described first temperature is the copper sheet temperature for plug moderate heat line contact, described second temperature is the described copper sheet temperature for zero line contact in plug, described for plug for described in fasten control box place power supply unit for plug;
If described first temperature is greater than temperature threshold, or described second temperature is greater than described temperature threshold, then control described motor vehicle and stop charging.
6. an electric vehicle charging equipment, is characterized in that, described equipment comprises:
Computing module, for when receiving the impulse wave fastening control box transmission, calculates the duty ratio of described impulse wave;
Determination module, for the duty ratio based on described impulse wave, determines that motor vehicle carries out the charge mode of trickle charge;
Reduce module, for when the charge mode determining that described motor vehicle carries out trickle charge is charge mode two, reduce the charger output current of described motor vehicle, obtain the first electric current, described first electric current is less than the rated current of charger;
First charging module, for by described first electric current, charges to described motor vehicle.
7. equipment as claimed in claim 6, it is characterized in that, described determination module comprises:
First determining unit, if be the first duty ratio for the duty ratio of described impulse wave, then determines that the charge mode that described motor vehicle carries out trickle charge is charge mode two;
Second determining unit, if be the second duty ratio for the duty ratio of described impulse wave, then determines that the charge mode that described motor vehicle carries out trickle charge is charge mode three.
8. equipment as claimed in claim 6, it is characterized in that, described equipment also comprises:
First control module, for when the charge mode determining that described motor vehicle carries out trickle charge is charge mode three, the charger output current controlling described motor vehicle is described rated current;
Second charging module, for by described rated current, charges to described motor vehicle.
9. equipment as claimed in claim 6, is characterized in that, described in fasten the impulse wave that control box sends be send by controlling confirmation signal loop.
10. the equipment as described in claim as arbitrary in claim 6-9, is characterized in that, described equipment also comprises:
Detection module, for detecting the first temperature and the second temperature, described first temperature is the copper sheet temperature for plug moderate heat line contact, and described second temperature is the described copper sheet temperature for zero line contact in plug, described for plug for described in fasten control box place power supply unit for plug;
Second control module, if be greater than temperature threshold for described first temperature, or described second temperature is greater than described temperature threshold, then control described motor vehicle and stop charging.
CN201410653045.9A 2014-11-17 2014-11-17 Electric vehicle charging method and equipment CN104467079A (en)

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CN106611983A (en) * 2015-10-26 2017-05-03 现代自动车株式会社 Method and recharging system for automatically selecting recharging mode
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CN107924531A (en) * 2015-09-03 2018-04-17 日产自动车株式会社 Vehicles management method and vehicle management device

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CN202474958U (en) * 2012-03-13 2012-10-03 盐城工学院 Charging interface heat-shielding device for electromobile
CN103595105A (en) * 2013-11-29 2014-02-19 上海埃士工业科技有限公司 Device and method for controlling charging on vehicle
CN203942309U (en) * 2014-05-29 2014-11-12 长城汽车股份有限公司 Charging system for electric automobile

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CN107924531A (en) * 2015-09-03 2018-04-17 日产自动车株式会社 Vehicles management method and vehicle management device
US10308139B2 (en) 2015-09-03 2019-06-04 Nissan Motor Co., Ltd. Vehicle management method and vehicle management device
CN107924531B (en) * 2015-09-03 2020-08-11 日产自动车株式会社 Vehicle management method and vehicle management device
US10773605B2 (en) 2015-10-26 2020-09-15 Hyundai Motor Company Method and recharging system for automatically selecting recharging mode
CN106611983A (en) * 2015-10-26 2017-05-03 现代自动车株式会社 Method and recharging system for automatically selecting recharging mode
CN106611983B (en) * 2015-10-26 2021-01-08 现代自动车株式会社 Method for automatically selecting charging mode and charging system
CN105406535A (en) * 2015-12-01 2016-03-16 北京新能源汽车股份有限公司 Charging system of electric vehicle
CN106740219A (en) * 2017-01-05 2017-05-31 重庆长安汽车股份有限公司 Control box and a kind of electric automobile on a kind of cable

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