CN205440014U - Electric automobile and charge-discharge system and charge-discharge interface circuit thereof - Google Patents
Electric automobile and charge-discharge system and charge-discharge interface circuit thereof Download PDFInfo
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- CN205440014U CN205440014U CN201520972758.1U CN201520972758U CN205440014U CN 205440014 U CN205440014 U CN 205440014U CN 201520972758 U CN201520972758 U CN 201520972758U CN 205440014 U CN205440014 U CN 205440014U
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Abstract
The utility model discloses an electric automobile's charge-discharge interface circuit, include: the first end of the interlocking circuit is a charging enabling end, the second end of the interlocking circuit is a discharging enabling end, and the third end of the interlocking circuit is a charging and discharging signal input and output end; the charging signal input circuit is respectively connected with the fourth end of the interlocking circuit and the vehicle-mounted charger; the discharge signal output circuit is respectively connected with the fifth ends of the vehicle control device and the interlocking circuit; the vehicle control device controls the conduction of the charging signal input circuit to receive the charging signal of the charging and discharging signal input and output end when the electric vehicle is charged, and outputs the discharging signal to the charging and discharging signal input and output end through the discharging signal output circuit when the electric vehicle is discharged. The circuit can realize the charging function and the external discharging function of the electric automobile under the condition of not changing a physical interface of charging hardware of the electric automobile. The utility model also discloses an electric automobile and charge-discharge system thereof.
Description
Technical field
This utility model relates to electric vehicle engineering field, particularly to discharge and recharge interface circuit, the charge-discharge system of a kind of electric automobile with this discharge and recharge interface circuit and a kind of electric automobile with this charge-discharge system of a kind of electric automobile.
Background technology
At present, vehicle-mounted charging device used for electric vehicle and relevant criterion only specify charging pile and the unidirectional hardware interface identifying schemes of Vehicular charger.Such as, for charging pile, only demand information during predetermined energy output, for Vehicular charger, only regulation is by demand information during electricity.
And along with the development of electric automobile, electric automobile not only needs charging, also need to as power supply external loading be powered or feed, including electrical network, electric automobile and other electronic equipments etc. simultaneously.This is accomplished by Vehicular charger and serves not only as power receiving equipment use, in addition it is also necessary to uses externally to export electric energy as charger, and ensures that hardware physical interface is constant.
Utility model content
One of technical problem that this utility model is intended to solve in correlation technique the most to a certain extent.To this end, a purpose of the present utility model is to propose the discharge and recharge interface circuit of a kind of electric automobile, it is possible under conditions of not changing charging electric vehicle hardware physical interface, it is achieved the charge function of electric automobile and external discharging function.
Another purpose of the present utility model is to propose the charge-discharge system of a kind of electric automobile.Another purpose of the present utility model is to propose a kind of electric automobile.
For achieving the above object, on the one hand this utility model proposes the discharge and recharge interface circuit of a kind of electric automobile, including: interlock circuit, the charging Enable Pin that first end is described electric automobile of described interlock circuit, the electric discharge Enable Pin that second end is described electric automobile of described interlock circuit, the 3rd end of described interlock circuit is discharge and recharge signal input output end；Charging signals input circuit, the input of described charging signals input circuit is connected with the 4th end of described interlock circuit, the outfan of described charging signals input circuit is connected with the Vehicular charger of described electric automobile, and the end that controls of described charging signals input circuit is connected with the controller of vehicle of described electric automobile；Discharge signal output circuit, the input of described discharge signal output circuit is connected with described controller of vehicle, and the outfan of described discharge signal output circuit is connected with the 5th end of described interlock circuit；Wherein, described controller of vehicle controls the described charging signals input circuit conducting charging signals with the described discharge and recharge signal input output end of reception when described charging electric vehicle, and when described electric automobile discharges by described discharge signal output circuit output discharge signal extremely described discharge and recharge signal input output end.
The discharge and recharge interface circuit of electric automobile of the present utility model, the conducting of charging signals input circuit is controlled to receive the charging signals of discharge and recharge signal input output end when charging electric vehicle, and export discharge signal to discharge and recharge signal input output end when electric automobile discharges by discharge signal output circuit, thus under conditions of not changing charging electric vehicle hardware physical interface, it is achieved the charge function of electric automobile and external discharging function.
Further, the discharge and recharge interface circuit of above-mentioned electric automobile, also include: charging signals testing circuit, first end of described charging signals testing circuit is connected with described charging signals input circuit, second end of described charging signals testing circuit is connected with described controller of vehicle, wherein, described controller of vehicle detects the charging signals of described discharge and recharge signal input output end by described charging signals testing circuit.
Further, the discharge and recharge interface circuit of above-mentioned electric automobile, also include: discharge signal testing circuit, first end of described discharge signal testing circuit is connected with the outfan of described discharge signal output circuit, second end of described discharge signal testing circuit is connected with described controller of vehicle, wherein, described controller of vehicle detects the discharge signal of described discharge and recharge signal input output end by described discharge signal testing circuit.
Further, the discharge and recharge interface circuit of above-mentioned electric automobile, also including: current detection circuit, described current detection circuit is connected with described controller of vehicle, and described controller of vehicle detects the current value of the discharge and recharge circuit of described electric automobile by described current detection circuit.
Specifically, described interlock circuit includes: the first optocoupler and the second optocoupler, first pin of described first optocoupler be connected with the second pin of described second optocoupler after as the first end of described interlock circuit, second pin of described first optocoupler be connected with the first pin of described second optocoupler after as the second end of described interlock circuit, the 5th end that three-prong is described interlock circuit of described first optocoupler, 4th pin of described first optocoupler be connected with the 4th pin of described second optocoupler after as the 3rd end of described interlock circuit, the 4th end that three-prong is described interlock circuit of described second optocoupler.
Specifically, described charging signals input circuit includes: the first diode, and the anode of described first diode is connected with the 4th end of described interlock circuit；First resistance, one end of described first resistance is connected with the negative electrode of described first diode, has primary nodal point between one end and the negative electrode of described first diode of described first resistance；Gate-controlled switch, the first end of described gate-controlled switch is connected with the other end of described first resistance, the second end of described gate-controlled switch be connected with described Vehicular charger after ground connection, the control end of described gate-controlled switch is connected with described controller of vehicle.
Specifically, described discharge signal output circuit includes: the second resistance of series connection and the 3rd resistance, one end of described second resistance is preset power supply with first and is connected, the other end of described second resistance is connected with one end of described 3rd resistance, the other end ground connection of described 3rd resistance, has secondary nodal point between the other end and one end of described 3rd resistance of described second resistance；First amplifier, the positive input terminal of described first amplifier is connected with described controller of vehicle, the negative input end of described first amplifier is connected with described secondary nodal point, and the outfan of described first amplifier is connected with the 5th end of described interlock circuit by after the 4th resistance.
Specifically, described charging signals testing circuit includes: the second amplifier, the positive input terminal of described second amplifier is connected with described primary nodal point, the positive input terminal of described second amplifier is connected with the outfan of described second amplifier also by ground connection after the 5th resistance, the negative input end of described second amplifier；6th resistance of series connection and the 7th resistance, one end of described 6th resistance is connected with the outfan of described second amplifier, the other end of described 6th resistance is connected with one end and the described controller of vehicle of described 7th resistance respectively, the other end ground connection of described 7th resistance.
Specifically, described discharge signal testing circuit includes: the 3rd amplifier, and the positive input terminal of described 3rd amplifier is connected with the outfan of described discharge signal output circuit, and the negative input end of described 3rd amplifier is connected with the outfan of described 3rd amplifier；Second diode, the anode of described second diode is connected with the outfan of described 3rd amplifier；8th resistance of series connection and the 9th resistance, one end of described 8th resistance is connected with the negative electrode of described second diode, the other end of described 8th resistance is connected with one end and the described controller of vehicle of described 9th resistance respectively, the other end ground connection of described 9th resistance.
Specifically, described current detection circuit includes: the tenth resistance, and one end of described tenth resistance is connected with the ground wire of described discharge and recharge circuit；11st resistance, one end of described 11st resistance is connected with the other end of described tenth resistance；12nd resistance, one end of described 12nd resistance is connected with the other end of described 11st resistance；The other end and second of described 12nd resistance is preset power supply and is connected；4th amplifier, the positive input terminal of described 4th amplifier preset power supply with described second be connected by the 13rd resistance, and the negative input end of described 4th amplifier passes through the 14th resistance and is connected with one end of described 12nd resistance；First audion, the base stage of described first audion is connected with the outfan of described 4th amplifier, and the colelctor electrode of described first audion is connected with the positive input terminal of described 4th amplifier；3rd optocoupler, first pin of described 3rd optocoupler is connected with the emitter stage of described first audion, second pin of described 3rd optocoupler is connected with described controller of vehicle, second pin of described 3rd optocoupler is also by ground connection after the 15th resistance, the three-prong of described 3rd optocoupler is connected with described controller of vehicle, the 4th pin ground connection of described 3rd optocoupler.
It addition, this utility model also proposed the charge-discharge system of a kind of electric automobile, it includes the discharge and recharge interface circuit of above-mentioned electric automobile.
The charge-discharge system of electric automobile of the present utility model, by above-mentioned discharge and recharge interface circuit, it is possible under conditions of not changing charging electric vehicle hardware physical interface, it is achieved the charge function of electric automobile and external discharging function.
Additionally, this utility model also proposed a kind of electric automobile, it includes the charge-discharge system of above-mentioned electric automobile.
Electric automobile of the present utility model, by above-mentioned charge-discharge system, it is possible under conditions of not changing charging electric vehicle hardware physical interface, it is achieved the charge function of electric automobile and external discharging function.
Accompanying drawing explanation
Fig. 1 is the block diagram of the discharge and recharge interface circuit of the electric automobile according to this utility model embodiment；
Fig. 2 is the application example of the discharge and recharge interface circuit of the electric automobile according to one embodiment of this utility model；
Fig. 3 is the block diagram of the discharge and recharge interface circuit of the electric automobile according to one embodiment of this utility model；
Fig. 4 is the block diagram of the discharge and recharge interface circuit of the electric automobile according to another embodiment of this utility model；
Fig. 5 is the block diagram of the discharge and recharge interface circuit of the electric automobile according to another embodiment of this utility model；
Fig. 6 is the circuit diagram of the discharge and recharge interface circuit of the electric automobile according to one embodiment of this utility model；
Fig. 7 is the circuit diagram of the current detection circuit according to one embodiment of this utility model；
Fig. 8 is the application example of the discharge and recharge interface circuit of the electric automobile according to another embodiment of this utility model.
Detailed description of the invention
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings, and the most same or similar label represents same or similar element or has the element of same or like function.The embodiment described below with reference to accompanying drawing is exemplary, it is intended to be used for explaining this utility model, and it is not intended that to restriction of the present utility model.
The discharge and recharge interface circuit of electric automobile, the charge-discharge system with the electric automobile of this discharge and recharge interface circuit and the electric automobile proposed according to this utility model embodiment is described with reference to the accompanying drawings.
Fig. 1 is the block diagram of the discharge and recharge interface circuit of the electric automobile according to this utility model embodiment.As it is shown in figure 1, the discharge and recharge interface circuit of this electric automobile includes: interlock circuit 10, charging signals input circuit 20 and discharge signal output circuit 30.
Wherein, the charging Enable Pin that the first end is electric automobile of interlock circuit 10, the electric discharge Enable Pin that the second end is electric automobile of interlock circuit, the 3rd end of interlock circuit is discharge and recharge signal input output end.The input of charging signals input circuit 20 is connected with the 4th end of interlock circuit 10, the outfan of charging signals input circuit 20 is connected with the Vehicular charger 40 of electric automobile, and the end that controls of charging signals input circuit 20 is connected with the controller of vehicle 50 of electric automobile.The input of discharge signal output circuit 30 is connected with controller of vehicle 50, the outfan of discharge signal output circuit 30 is connected with the 5th end of interlock circuit 10, wherein, controller of vehicle 50 controls charging signals input circuit 20 and turns on to receive the charging signals of discharge and recharge signal input output end when charging electric vehicle, and exports discharge signal to discharge and recharge signal input output end when electric automobile discharges by discharge signal output circuit 30.
Specifically, the first end and second end of interlock circuit 10 can be connected with user terminal, and user can set the mode of operation of electric automobile by the man machine operation interface of user terminal, including charge mode and discharge mode.Such as, when needs are to charging electric vehicle, user can select " charge mode " on man machine operation interface, turn on the 3rd end and the 4th end being controlled interlock circuit 10 by charging Enable Pin, i.e. control charging signals input circuit 20 to turn on discharge and recharge signal input output end, controller of vehicle 50 controls charging signals input circuit 20 and turns on simultaneously, charging signals such as PWM (PulseWidthModulation pulse width modulation) signal of now externally fed control device output transmits to Vehicular charger 40 through discharge and recharge signal input output end and charging signals input circuit 20, to control Vehicular charger 40 to the power battery charging of electric automobile.When needs electric automobile be external loading power time, user can select " discharge mode " on man machine operation interface, turn on the 3rd end and the 5th end being controlled interlock circuit 10 by electric discharge Enable Pin, i.e. control discharge signal output circuit 30 to turn on discharge and recharge signal input output end, the discharge signal such as pwm signal of now controller of vehicle 50 output transmits to external loading control device through discharge signal output circuit 30 and discharge and recharge signal input output end, so that electric automobile powering load.
It should be noted that in embodiment of the present utility model, discharge mode comprise the steps that vehicle-to-vehicle charging, car to load supplying and car to electrical network feed etc..
Further, Fig. 2 is the application example of discharge and recharge interface circuit of the electric automobile according to one embodiment of this utility model.As can be seen from Figure 2, the discharge and recharge interface circuit of this utility model embodiment can be under conditions of not changing existing electric automobile hardware physical interface standards, realize electrical network or other power supplies function to charging electric vehicle, realize electric automobile simultaneously and electrical network is fed, transmits electric energy or the function powered for other external loadings for other electric automobiles.
According to an embodiment of the present utility model, as shown in Figure 3, the discharge and recharge interface circuit of above-mentioned electric automobile also includes: charging signals testing circuit 60, first end of charging signals testing circuit 60 is connected with charging signals input circuit 20, second end of charging signals testing circuit 60 is connected with controller of vehicle 50, wherein, controller of vehicle 50 detects the charging signals of discharge and recharge signal input output end by charging signals testing circuit 60.
Specifically, when needs are to charging electric vehicle, user can select " charge mode " on man machine operation interface, to control charging signals input circuit 20 and the conducting of discharge and recharge signal input output end by charging Enable Pin, then controller of vehicle 50 detects the charging signals of discharge and recharge signal input output end to judge whether current charge power meets the charge power demand of electric automobile by charging signals testing circuit 60, meanwhile, judge whether be currently charge mode according to the amplitude of charging signals.If current charge power meets the charge power demand of electric automobile and for charge mode, then controller of vehicle 50 controls charging signals input circuit 20 and turns on, to be charged to electric automobile.By the inspection to charge mode, effectively prevent the situation causing electric automobile and relevant device thereof to break down because of user misoperation, safe and reliable.
According to an embodiment of the present utility model, as shown in Figure 4, the discharge and recharge interface circuit of above-mentioned electric automobile also includes: discharge signal testing circuit 70, first end of discharge signal testing circuit 70 is connected with the outfan of discharge signal output circuit 30, second end of discharge signal testing circuit 70 is connected with controller of vehicle 50, wherein, controller of vehicle 50 detects the discharge signal of discharge and recharge signal input output end by discharge signal testing circuit 70.
Specifically, when needs electric automobile be external loading power time, user can select " discharge mode " on man machine operation interface, to control discharge signal output circuit 30 and the conducting of discharge and recharge signal input output end by electric discharge Enable Pin, now external loading control device sends charge request signal such as pwm signal to discharge and recharge signal input output end, and controller of vehicle 50 detects the amplitude of pwm signal to determine whether charge request signal by discharge signal testing circuit 70.If there being charge request signal, then controller of vehicle 50 exports discharge signal to discharge and recharge signal input output end by discharge signal output circuit 30, so that electric automobile powering load.Meanwhile, controller of vehicle 50 detects amplitude and the dutycycle of discharge signal by discharge signal testing circuit 70, and the amplitude and dutycycle according to detection confirms whether present mode is discharge mode.By the inspection to discharge mode, effectively prevent the situation causing electric automobile and relevant device thereof to break down because of user misoperation, safe and reliable.
According to an embodiment of the present utility model, as shown in Figure 5, the discharge and recharge interface circuit of above-mentioned electric automobile also includes: current detection circuit 80, current detection circuit 80 is connected with controller of vehicle 50, and controller of vehicle 50 detects the current value of the discharge and recharge circuit of electric automobile by current detection circuit 80.
Specifically, in electric automobile charge and discharge process, detect, also by current detection circuit 80, the current value that the discharge and recharge circuit of electric automobile is carried with the connection status of electric automobile and discharge and recharge circuit.
According to an embodiment of the present utility model, as shown in Figure 6, interlock circuit 10 includes: the first optocoupler U1 and the second optocoupler U2, wherein, first pin of the first optocoupler U1 and second pin of the second optocoupler U2 be connected after as the first end of interlock circuit 10, second pin of the first optocoupler U1 and first pin of the second optocoupler U2 be connected after as the second end of interlock circuit 10, the 5th end that three-prong is interlock circuit 10 of the first optocoupler U1, 4th pin of the first optocoupler U1 and the 4th pin of the second optocoupler U2 be connected after as the 3rd end of interlock circuit 10, the 4th end that three-prong is interlock circuit 10 of the second optocoupler U2.
Specifically, when needs are to charging electric vehicle, user is after selecting " charge mode " on man machine operation interface, charging Enable Pin is low level, and Enable Pin of discharging is high level, the now Guan Bi of the switch S2 in the second optocoupler U2, and the switch S1 in the first optocoupler U1 disconnects, the 3rd end of interlock circuit 10 and the 4th end are in the conduction state；When needs electric automobile be external loading power time, user is after selecting " discharge mode " on man machine operation interface, electric discharge Enable Pin is low level, and Enable Pin of charging is high level, the now Guan Bi of the switch S1 in the first optocoupler U1, and the switch S2 in the second optocoupler U2 disconnects, the 3rd end of interlock circuit 10 and the 5th end are in the conduction state, thus realize the interlock function of electric automobile mode of operation.
According to an embodiment of the present utility model, as shown in Figure 6, charging signals input circuit 20 includes: the first diode D1, the first resistance R1 and gate-controlled switch K.Wherein, the anode of the first diode D1 is connected with the 4th end of interlock circuit 10, and one end of the first resistance R1 is connected with the negative electrode of the first diode D1, has primary nodal point J1 between one end and the negative electrode of the first diode D1 of the first resistance R1.First end of gate-controlled switch K and the other end of the first resistance R1 are connected, and second end of gate-controlled switch K is connected with Vehicular charger 40 ground connection afterwards, and the control end of gate-controlled switch K is connected with controller of vehicle 50.
Further, as shown in Figure 6, charging signals testing circuit 60 includes: the second amplifier P2, the 5th resistance R5, the 6th resistance R6 and the 7th resistance R7 of series connection, wherein, the positive input terminal of the second amplifier P2 is connected with primary nodal point J1, the positive input terminal of the second amplifier P2 is connected also by ground connection after the 5th resistance R5, the negative input end of the second amplifier P2 and the outfan of the second amplifier P2.One end of 6th resistance R6 is connected with the outfan of the second amplifier P2, and the other end of the 6th resistance R6 is connected with one end and the controller of vehicle 50 of the 7th resistance R7 respectively, the other end ground connection of the 7th resistance R7.
As shown in Figure 6, discharge signal output circuit 30 includes: the second resistance R2, the 3rd resistance R3, the first amplifier P1 and the 4th resistance R4, wherein, second resistance R2 and the 3rd resistance R3 series connection, one end of second resistance R2 is preset power supply VCC1 with first and is connected, the other end of the second resistance R2 and one end of the 3rd resistance R3 are connected, and the other end ground connection of the 3rd resistance R3 has secondary nodal point J2 between the other end and one end of the 3rd resistance R3 of the second resistance R2.The positive input terminal of the first amplifier P1 is connected with controller of vehicle 50, and the negative input end of the first amplifier P1 is connected with secondary nodal point J2, and the outfan of the first amplifier P1 is connected with the 5th end of interlock circuit 10 by after the 4th resistance R4.
Further, discharge signal testing circuit 70 includes: the 3rd amplifier P3, the second diode D2, the 8th resistance R8 and the 9th resistance R9 of series connection, wherein, the positive input terminal of the 3rd amplifier P3 is connected with the outfan of discharge signal output circuit 30, and the negative input end of the 3rd amplifier P3 and the outfan of the 3rd amplifier P3 are connected.The anode of the second diode D2 and the outfan of the 3rd amplifier P3 are connected.One end of 8th resistance R8 is connected with the negative electrode of the second diode D2, and the other end of the 8th resistance R8 is connected with one end and the controller of vehicle 50 of the 9th resistance R9 respectively, the other end ground connection of the 9th resistance R9.
The work process of the discharge and recharge interface circuit of the electric automobile shown in Fig. 6 repeats no more here.
According to an embodiment of the present utility model, as shown in Figure 7, current detection circuit 80 includes: the tenth resistance R10, 11st resistance R11, 12nd resistance R12, 4th amplifier P4, first audion Q1, 3rd optocoupler U3, 13rd resistance R13, 14th resistance R14 and the 15th resistance R15, wherein, one end of tenth resistance R10 is connected with the ground wire of discharge and recharge circuit, one end of 11st resistance R11 is connected with the other end of the tenth resistance R10, one end of 12nd resistance R12 is connected with the other end of the 11st resistance R11, the other end of the 12nd resistance R12 and second is preset power supply VCC2 and is connected.The positive input terminal of the 4th amplifier P4 is preset power supply VCC2 by the 13rd resistance R13 and second and is connected, and the negative input end of the 4th amplifier P4 is connected by one end of the 14th resistance R14 and the 12nd resistance R12.The base stage of the first audion Q1 is connected with the outfan of the 4th amplifier P4, and the colelctor electrode of the first audion Q1 and the positive input terminal of the 4th amplifier P4 are connected.First pin of the 3rd optocoupler U3 and the emitter stage of the first audion Q1 are connected, second pin of the 3rd optocoupler U3 is connected with controller of vehicle 50, second pin of the 3rd optocoupler U3 is also by ground connection after the 15th resistance R15, the three-prong of the 3rd optocoupler U3 is connected with controller of vehicle 50, the 4th pin ground connection of the 3rd optocoupler U3.
Specifically, second presets power supply VCC2 can be powered by low pressure difference linear voltage regulator, such as TLE4296, its standby current is less than 1uA, the circuit that 13rd resistance the 13, the 14th resistance R14, the 4th amplifier P4 and the first audion Q1 are constituted can be replaced by IN168, its quiescent current is 25uA, and total standby current will be less than 30uA.Therefore, quiescent power supply current is little.
After electric automobile is correctly connected with externally fed power supply, 3rd optocoupler U3 is by running order, now the three-prong output wake-up signal of the 3rd optocoupler U3 is to controller of vehicle 50, controller of vehicle 50 after receiving wake-up signal, by after gathering the signal of the second pin of the 3rd optocoupler U3 and processing to obtain the current value that discharge and recharge circuit is carried.It is understood that damage discharge and recharge circuit to prevent electric current excessive, and then electric automobile is caused damage, between the tenth resistance R10 and the ground wire of discharge and recharge circuit, be additionally provided with the second gate-controlled switch K2, as shown in Figure 8.Second gate-controlled switch K2 can be normally closed switch, and when the current value on the discharge and recharge circuit of controller of vehicle 50 detection is more than certain value, controller of vehicle 50 will control the second gate-controlled switch K2 and disconnect, and now forbid that electric automobile carries out discharge and recharge.
The discharge and recharge interface circuit of the electric automobile of this utility model embodiment, on the basis of meeting current GB, and compatible existing electric automobile standard, and under conditions of the holding of hardware physical interface is constant, both can complete the charging to electric automobile, can externally discharge again, but also the mode of operation of electric automobile and charging and discharging capabilities can be identified and check, safe and reliable, meet user's request.
It addition, embodiment of the present utility model also proposed the charge-discharge system of a kind of electric automobile, it includes the discharge and recharge interface circuit of above-mentioned electric automobile.
The charge-discharge system of the electric automobile of this utility model embodiment, by above-mentioned discharge and recharge interface circuit, it is possible under conditions of not changing charging electric vehicle hardware physical interface, it is achieved the charge function of electric automobile and external discharging function.
Additionally, embodiment of the present utility model also proposed a kind of electric automobile, it includes the charge-discharge system of above-mentioned electric automobile.
The electric automobile of this utility model embodiment, by above-mentioned charge-discharge system, it is possible under conditions of not changing charging electric vehicle hardware physical interface, it is achieved the charge function of electric automobile and external discharging function.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", on " ", D score, " front ", " afterwards ", " left ", " right ", " vertically ", " level ", " push up ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", orientation or the position relationship of the instruction such as " circumferential " are based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, such as two, three etc., unless otherwise expressly limited specifically.
In this utility model, unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection ", the term such as " fixing " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in this utility model can be understood as the case may be.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means that the specific features, structure, material or the feature that combine this embodiment or example description are contained at least one embodiment of the present utility model or example.In this manual, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature can be to combine in one or more embodiments in office or example in an appropriate manner.Additionally, in the case of the most conflicting, the feature of the different embodiments described in this specification or example and different embodiment or example can be combined and combine by those skilled in the art.
Although above it has been shown and described that embodiment of the present utility model, it is understandable that, above-described embodiment is exemplary, it is not intended that to restriction of the present utility model, above-described embodiment can be changed in the range of this utility model, revises, replace and modification by those of ordinary skill in the art.
Claims (12)
1. the discharge and recharge interface circuit of an electric automobile, it is characterised in that including:
Interlock circuit, the charging Enable Pin that the first end is described electric automobile of described interlock circuit, the electric discharge Enable Pin that the second end is described electric automobile of described interlock circuit, the 3rd end of described interlock circuit is discharge and recharge signal input output end；
Charging signals input circuit, the input of described charging signals input circuit is connected with the 4th end of described interlock circuit, the outfan of described charging signals input circuit is connected with the Vehicular charger of described electric automobile, and the end that controls of described charging signals input circuit is connected with the controller of vehicle of described electric automobile；
Discharge signal output circuit, the input of described discharge signal output circuit is connected with described controller of vehicle, and the outfan of described discharge signal output circuit is connected with the 5th end of described interlock circuit；
Wherein, described controller of vehicle controls the described charging signals input circuit conducting charging signals with the described discharge and recharge signal input output end of reception when described charging electric vehicle, and when described electric automobile discharges by described discharge signal output circuit output discharge signal extremely described discharge and recharge signal input output end.
The discharge and recharge interface circuit of electric automobile the most according to claim 1, it is characterised in that also include:
Charging signals testing circuit, first end of described charging signals testing circuit is connected with described charging signals input circuit, second end of described charging signals testing circuit is connected with described controller of vehicle, wherein, described controller of vehicle detects the charging signals of described discharge and recharge signal input output end by described charging signals testing circuit.
The discharge and recharge interface circuit of electric automobile the most according to claim 1, it is characterised in that also include:
Discharge signal testing circuit, first end of described discharge signal testing circuit is connected with the outfan of described discharge signal output circuit, second end of described discharge signal testing circuit is connected with described controller of vehicle, wherein, described controller of vehicle detects the discharge signal of described discharge and recharge signal input output end by described discharge signal testing circuit.
The discharge and recharge interface circuit of electric automobile the most according to claim 1, it is characterised in that also include:
Current detection circuit, described current detection circuit is connected with described controller of vehicle, and described controller of vehicle detects the current value of the discharge and recharge circuit of described electric automobile by described current detection circuit.
5. according to the discharge and recharge interface circuit of the electric automobile according to any one of claim 1-4, it is characterised in that described interlock circuit includes:
First optocoupler and the second optocoupler, first pin of described first optocoupler be connected with the second pin of described second optocoupler after as the first end of described interlock circuit, second pin of described first optocoupler be connected with the first pin of described second optocoupler after as the second end of described interlock circuit, the 5th end that three-prong is described interlock circuit of described first optocoupler, 4th pin of described first optocoupler be connected with the 4th pin of described second optocoupler after as the 3rd end of described interlock circuit, the 4th end that three-prong is described interlock circuit of described second optocoupler.
6. according to the discharge and recharge interface circuit of the electric automobile according to any one of claim 1-4, it is characterised in that described charging signals input circuit includes:
First diode, the anode of described first diode is connected with the 4th end of described interlock circuit；
First resistance, one end of described first resistance is connected with the negative electrode of described first diode, has primary nodal point between one end and the negative electrode of described first diode of described first resistance；
Gate-controlled switch, the first end of described gate-controlled switch is connected with the other end of described first resistance, the second end of described gate-controlled switch be connected with described Vehicular charger after ground connection, the control end of described gate-controlled switch is connected with described controller of vehicle.
7. according to the discharge and recharge interface circuit of the electric automobile according to any one of claim 1-4, it is characterised in that described discharge signal output circuit includes:
Second resistance of series connection and the 3rd resistance, one end of described second resistance is preset power supply with first and is connected, the other end of described second resistance is connected with one end of described 3rd resistance, the other end ground connection of described 3rd resistance, has secondary nodal point between the other end and one end of described 3rd resistance of described second resistance；
First amplifier, the positive input terminal of described first amplifier is connected with described controller of vehicle, the negative input end of described first amplifier is connected with described secondary nodal point, and the outfan of described first amplifier is connected with the 5th end of described interlock circuit by after the 4th resistance.
The discharge and recharge interface circuit of electric automobile the most according to claim 6, it is characterised in that described charging signals testing circuit includes:
Second amplifier, the positive input terminal of described second amplifier is connected with described primary nodal point, and the positive input terminal of described second amplifier is connected with the outfan of described second amplifier also by ground connection after the 5th resistance, the negative input end of described second amplifier；
6th resistance of series connection and the 7th resistance, one end of described 6th resistance is connected with the outfan of described second amplifier, the other end of described 6th resistance is connected with one end and the described controller of vehicle of described 7th resistance respectively, the other end ground connection of described 7th resistance.
The discharge and recharge interface circuit of electric automobile the most according to claim 7, it is characterised in that described discharge signal testing circuit includes:
3rd amplifier, the positive input terminal of described 3rd amplifier is connected with the outfan of described discharge signal output circuit, and the negative input end of described 3rd amplifier is connected with the outfan of described 3rd amplifier；
Second diode, the anode of described second diode is connected with the outfan of described 3rd amplifier；
8th resistance of series connection and the 9th resistance, one end of described 8th resistance is connected with the negative electrode of described second diode, the other end of described 8th resistance is connected with one end and the described controller of vehicle of described 9th resistance respectively, the other end ground connection of described 9th resistance.
The discharge and recharge interface circuit of electric automobile the most according to claim 4, it is characterised in that described current detection circuit includes:
Tenth resistance, one end of described tenth resistance is connected with the ground wire of described discharge and recharge circuit；
11st resistance, one end of described 11st resistance is connected with the other end of described tenth resistance；
12nd resistance, one end of described 12nd resistance is connected with the other end of described 11st resistance；The other end and second of described 12nd resistance is preset power supply and is connected；
4th amplifier, the positive input terminal of described 4th amplifier preset power supply with described second be connected by the 13rd resistance, and the negative input end of described 4th amplifier passes through the 14th resistance and is connected with one end of described 12nd resistance；
First audion, the base stage of described first audion is connected with the outfan of described 4th amplifier, and the colelctor electrode of described first audion is connected with the positive input terminal of described 4th amplifier；
3rd optocoupler, first pin of described 3rd optocoupler is connected with the emitter stage of described first audion, second pin of described 3rd optocoupler is connected with described controller of vehicle, second pin of described 3rd optocoupler is also by ground connection after the 15th resistance, the three-prong of described 3rd optocoupler is connected with described controller of vehicle, the 4th pin ground connection of described 3rd optocoupler.
The charge-discharge system of 11. 1 kinds of electric automobiles, it is characterised in that include the discharge and recharge interface circuit according to the electric automobile according to any one of claim 1-10.
12. 1 kinds of electric automobiles, it is characterised in that include the charge-discharge system of electric automobile according to claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520972758.1U CN205440014U (en) | 2015-11-30 | 2015-11-30 | Electric automobile and charge-discharge system and charge-discharge interface circuit thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520972758.1U CN205440014U (en) | 2015-11-30 | 2015-11-30 | Electric automobile and charge-discharge system and charge-discharge interface circuit thereof |
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| CN205440014U true CN205440014U (en) | 2016-08-10 |
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| CN201520972758.1U Expired - Fee Related CN205440014U (en) | 2015-11-30 | 2015-11-30 | Electric automobile and charge-discharge system and charge-discharge interface circuit thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108621814A (en) * | 2017-03-24 | 2018-10-09 | 华盛新能源科技（深圳）有限公司 | One kind being based on V2V charge-discharge systems and method |
| CN110015084A (en) * | 2017-11-16 | 2019-07-16 | 北汽（镇江）汽车有限公司 | A kind of automobile is to automobile charging system actual, automobile and its control method |
| CN110303930A (en) * | 2019-07-04 | 2019-10-08 | 广东海洋大学 | A kind of charging unit |
| CN118254629A (en) * | 2024-05-31 | 2024-06-28 | 深圳市移速科技有限公司 | Charging and discharging control circuit and charging pile |
-
2015
- 2015-11-30 CN CN201520972758.1U patent/CN205440014U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108621814A (en) * | 2017-03-24 | 2018-10-09 | 华盛新能源科技（深圳）有限公司 | One kind being based on V2V charge-discharge systems and method |
| CN110015084A (en) * | 2017-11-16 | 2019-07-16 | 北汽（镇江）汽车有限公司 | A kind of automobile is to automobile charging system actual, automobile and its control method |
| CN110303930A (en) * | 2019-07-04 | 2019-10-08 | 广东海洋大学 | A kind of charging unit |
| CN118254629A (en) * | 2024-05-31 | 2024-06-28 | 深圳市移速科技有限公司 | Charging and discharging control circuit and charging pile |
| CN118254629B (en) * | 2024-05-31 | 2024-09-06 | 东莞市奥海科技股份有限公司 | Charging and discharging control circuit and charging pile |
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