CN103187758B

CN103187758B - Charging system for electric automobile and electric automobile with same

Info

Publication number: CN103187758B
Application number: CN201210589854.9A
Authority: CN
Inventors: 汤哲晴; 杜智勇; 唐甫
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2011-12-31
Filing date: 2012-12-31
Publication date: 2015-06-24
Anticipated expiration: 2032-12-31
Also published as: CN103338140A; CN103187769A; CN103187762B; CN103187779A; CN103187764A; CN203205183U; CN103187779B; CN103187772B; CN103187763B; CN103182948B; CN103187760A; CN103187765B; CN103187760B; CN103182948A; CN103187768A; CN103187769B; CN103186109B; CN103187764B; CN103187770B; CN103187758A

Abstract

The invention provides a charging system for an electric automobile. The charging system comprises a power battery, a first charging interface, a second charging interface, a first charging control branch circuit, a second charging control branch circuit and a controller, wherein the first and second charging interfaces are connected with an external power supply; the first charging control branch circuit is connected between the power battery and the first charging interface, and the second charging control branch circuit is connected between the power battery and the second charging interface; and the controller is connected with the first and second charging interfaces. The charging system can be used for conducting high-power alternating current charging on an electric automobile by using a civil or industrial alternating current power grid, so that a user can charge efficiently and quickly anytime and anywhere, the working voltage range for the battery is wide, and space and cost can be saved. The invention also provides the electric automobile.

Description

The charging system of electric automobile and there is its electric automobile

Technical field

The present invention relates to electric vehicle engineering field, particularly a kind of electric automobile charging system and there is its electric automobile.

Background technology

Along with the development of science and technology, the electric automobile of environmental protection and energy saving is play the role replacing fuel vehicle, but the universal of electric automobile is also faced with some problems, wherein high course continuation mileage and efficiently charging technique, has become a great problem that electric automobile is promoted.

At present, electric automobile adopts jumbo battery mostly, although can improve the flying power of electric automobile, same jumbo battery brings again charging interval long problem.Although the DC charging station of specialty can fast for battery charges, but the problems such as the cost of great number and larger floor space make the universal of this infrastructure also be faced with certain difficulty, simultaneously again due to the limited space of vehicle, onboard charger is subject to the restriction of volume and cannot meets charge power.

Now commercially taked charging scheme has following several:

Scheme (1): as depicted in figs. 1 and 2, vehicle-mounted charge and discharge device in this scheme mainly comprises three phase mains transformer 1 ', six Thyristor compositions three-phase bridge circuit 2 ', constant-pressure control device AUR and constant-current control device ACR, but program serious waste space and cost.

Scheme (2): as shown in Figure 3, the vehicle-mounted charge and discharge device in this scheme installs two charging sockets 15 ', 16 ' for adapting to list/three-phase charging, adds cost; Motor driving loop comprises the filtration module that inductance L 1 ' forms with electric capacity C1 ', and when motor drives, three-phase current after filtering module produces loss, is the waste to battery electric quantity; During program charge/discharge operation, inverter 13 ' carries out rectification/inversion to alternating current, and after rectification/inversion, voltage is unadjustable, is suitable for battery operating voltage narrow range.

In sum, AC charging technology taked in the market adopts individual event charging technique mostly, and this technology exists that charge power is little, the charging interval is long, hardware volume is comparatively large, function singleness, be limited to the shortcoming such as electric pressure restriction of different regions electrical network.

Summary of the invention

Object of the present invention is intended at least solve one of above-mentioned technological deficiency.

For this reason, one object of the present invention is the charging system proposing a kind of electric automobile, can realize using civilian or industrial AC network to carry out high power AC charging to electric automobile, user can efficiently, efficiently be charged whenever and wherever possible, without the need to constant-pressure control device and constant-current control device, save space and cost, and be suitable for battery operating voltage wide ranges.

Another object of the present invention is also to propose a kind of electric automobile.

For achieving the above object, the embodiment of first aspect present invention provides a kind of charging system of electric automobile, comprising: electrokinetic cell; High-tension distribution box, described high-tension distribution box is connected with described electrokinetic cell; First charging inlet and the second charging inlet, described first charging inlet is connected with external power source with the second charging inlet; First charging controlling brancher and the second charging controlling brancher, described first charging controlling brancher is connected between described electrokinetic cell and described first charging inlet, and described second charging controlling brancher is connected between described electrokinetic cell and described second charging inlet; And controller, described controller is connected with the second charging inlet with described high-tension distribution box, described first charging inlet.

According to the charging system of the electric automobile of the embodiment of the present invention, can realize using civilian or industrial AC network to carry out high power AC charging to electric automobile, user can efficiently, efficiently be charged whenever and wherever possible, save the charging interval, simultaneously without the need to constant-pressure control device and constant-current control device, save space and cost, and be suitable for battery operating voltage wide ranges.

In addition, the present invention's embodiment on the other hand proposes a kind of electric automobile, comprises the charging system of the electric automobile described in above-mentioned first aspect embodiment.

According to the electric automobile of the embodiment of the present invention, high-power charging can be carried out by three-phase or single-phase electricity, facilitate user to carry out quick charge to electric automobile whenever and wherever possible, saved time cost, meet the demand of people.

The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.

Accompanying drawing explanation

The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:

Fig. 1 is the circuit diagram of existing a kind of vehicle-mounted charge and discharge device;

Fig. 2 is the control schematic diagram of existing a kind of vehicle-mounted charge and discharge device;

Fig. 3 is the circuit diagram of the vehicle-mounted charge and discharge device of existing another kind;

Fig. 4 is the block diagram of charging system according to an embodiment of the invention;

Fig. 5 is the topological diagram of charging system according to an embodiment of the invention;

Fig. 6 is the further block diagram of charging system according to an embodiment of the invention;

Fig. 7 is the block diagram of controller according to an embodiment of the invention;

Fig. 8 is according to the DSP in the controller of the present invention's example and peripheral hardware circuit interface schematic diagram;

Fig. 9 is the function decision flow chart of charging system according to an embodiment of the invention;

Figure 10 is that charging system carries out the block diagram of drive and control of electric machine function according to an embodiment of the invention;

Figure 11 is that charging system charging/discharging function starts decision flow chart according to an embodiment of the invention;

Figure 12 is the control flow chart of charging system under charge mode according to an embodiment of the invention;

Figure 13 is the control flow chart of charging system at the end of charging electric vehicle according to an embodiment of the invention;

Figure 14 is connecting circuit figure between electric automobile and power supply unit according to an embodiment of the invention;

Figure 15 is the schematic diagram of charging system in accordance with another embodiment of the present invention;

Figure 16 is the mutual schematic diagram of battery management of charging system according to an embodiment of the invention;

Figure 17 is single rifle charging flow figure of charging system according to an embodiment of the invention;

Figure 18 is the rush-harvesting and rush-planting charging flow figure of charging system according to an embodiment of the invention;

Figure 19 is DC component algorithm control flow chart according to an embodiment of the invention;

Figure 20 is the schematic diagram of the charging/discharging socket according to the present invention's example;

Figure 21 is the schematic diagram from guipure placing plug according to another example of the present invention;

Figure 22 is the structure chart of the power carrier communication system of electric automobile according to another embodiment of the present invention;

Figure 23 is the block diagram of power carrier wave communication device;

Figure 24 is that eight power carrier wave communication devices carry out the schematic diagram of communication with corresponding control device;

Figure 25 is the method flow diagram that power carrier communication system carries out data receiver; And

Figure 26 is the body structure schematic diagram of the charging system going back an embodiment according to the present invention.

Embodiment

Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.

Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the invention provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.In addition, fisrt feature described below second feature it " on " structure can comprise the embodiment that the first and second features are formed as directly contact, also can comprise other feature and be formed in embodiment between the first and second features, such first and second features may not be direct contacts.

In describing the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.

With reference to description below and accompanying drawing, these and other aspects of embodiments of the invention will be known.Describe at these and in accompanying drawing, specifically disclose some particular implementation in embodiments of the invention, representing some modes of the principle implementing embodiments of the invention, but should be appreciated that the scope of embodiments of the invention is not limited.On the contrary, embodiments of the invention comprise fall into attached claims spirit and intension within the scope of all changes, amendment and equivalent.

Clearly understanding to have the present invention, first the charging system of the electric automobile involved by the embodiment of the present invention being introduced below.After the charging system introduction of the electric automobile to the embodiment of the present invention, then adopt one and two charging guns to carry out charging to the embodiment of the present invention by the charging system of electric automobile to describe in detail.Need to further illustrate, be introduced for two charging guns in the examples below, but the present invention does not limit the quantity of charging gun, the technical scheme described by following examples and principle also can realize the charging of multiple charging gun.

As shown in Figure 4, the charging system 100 of the electric automobile that one embodiment of the invention proposes, comprising: electrokinetic cell 10, high-tension distribution box 90, first charging inlet INT1, the second charging inlet INT2, the first charging controlling brancher 401, second charging controlling brancher 402 and controller 80.

High-tension distribution box 90 is connected with electrokinetic cell 10.First charging inlet INT1 is connected with external power source with the second charging inlet INT2.First charging controlling brancher 401 is connected between electrokinetic cell 10 and the first charging inlet INT1, and the second charging controlling brancher 402 is connected between electrokinetic cell 10 and the second charging inlet INT2.Controller 80 is connected with the second charging inlet INT2 with high-tension distribution box 90, first charging inlet INT1.

When being charged by the first charging controlling brancher 401 and the second charging controlling brancher 402 simultaneously, namely, when charging, controller 80 controls the first charging controlling brancher 401 and starts to set up charging path between electrokinetic cell 10 and the first charging inlet INT1 until first controlling brancher 401 that charges enters operating state semi-load; Controller 80 controls the second charging controlling brancher 402 and starts to set up charging path between electrokinetic cell 10 and the second charging inlet INT2 until second controlling brancher 402 that charges enters operating state semi-load.The operating power that controller 80 adjusts the first charging controlling brancher 401 and the second charging controlling brancher 402 enters fully loaded operating state to make the first charging controlling brancher 401 and the second charging controlling brancher 402.

As shown in Figure 5, high-tension distribution box comprises: the first preliminary filling control module 101, first K switch 1 and drived control switch 40.Wherein, first preliminary filling control module 101 and the parallel connection of the first K switch 1, first preliminary filling control module 101 is connected with one end of electrokinetic cell 10 with one end of the first K switch 1, and the first preliminary filling control module 101 and the other end and first of the first K switch 1 charge the second end a2 of controlling brancher 402 of controlling brancher 401 and second that charges is connected.One end of drived control switch 40 is connected with one end (positive pole) of electrokinetic cell 10, and drived control switch 40 and first charges, charge the 3rd end a3 of controlling brancher 402 of controlling brancher 401 and second is connected, wherein, the first preliminary filling control module 101, first K switch 1 is all connected with controller 80 with drived control switch 40.

When electric automobile is in charge and discharge mode, controller 80 carries out precharge closed first preliminary filling control module 101 simultaneously by the first preliminary filling control module 101 to the first charging controlling brancher 401 and the second charging controlling brancher 402, when the busbar voltage of the first charging controlling brancher 401 and the second charging controlling brancher 402 to become preset multiple with the voltage of electrokinetic cell 10, control the first preliminary filling control module 101 and turn off and close the first K switch 1.

In one embodiment of the invention, the first charging controlling brancher 401 and the second charging controlling brancher 402 have identical structure, are described in detail below for the structure of the first charging controlling brancher 401 to the first charging controlling brancher 401.As shown in Figure 5, the first charging controlling brancher 401 comprises: two-way DC/DC module 30, two-way DC/AC module 50 and charge and discharge control module 70.

Wherein, first DC terminal a1 of two-way DC/DC module 30 is connected with the other end of electrokinetic cell 10, second DC terminal a2 of two-way DC/DC module 30 is connected with one end of electrokinetic cell 10, and the first DC terminal a1 is the common DC end that two-way DC/DC module 30 inputs and exports.First DC terminal b1 of two-way DC/AC module 50 is connected with the other end of drived control switch 40, and the second DC terminal b2 of two-way DC/AC module 50 is connected with the other end of electrokinetic cell 10.One end of charge and discharge control module 70 is connected with the end c that exchanges of two-way DC/AC module 50, wherein, the other end of the charge and discharge control module 70 of the first charging controlling brancher 401 is connected with the first charging inlet INT1, the other end of the charge and discharge control module 70 of the second charging controlling brancher 402 is connected with the second charging inlet INT2, first charging inlet INT1 and the second charging inlet INT2 not only can be connected charging gun and charge, and also can connect charging socket and charge.

Further, the charging system 100 of electric automobile also comprises: motor control switch 60.Wherein, one end of motor control switch 60 is connected with the end c that exchanges of two-way DC/AC module 50, and the other end of motor control switch 60 is connected with motor M.Motor control switch 60 is controlled by controller 80, and controller 80, when electric automobile is drive pattern, closes motor control switch 60.

Specifically, when the current residing mode of operation of charging system 100 is drive pattern, it is closed to close two-way DC/DC module 30 that controller 80 controls drived control switch 40, and it is closed to control motor control switch 60, and control charge and discharge control module 70 disconnects.

In one embodiment of the invention, as shown in Figure 5, two-way DC/DC module 30 comprises the first switching tube Q1, second switch pipe Q2, the first diode D1, the second diode D2, the first inductance L 1 and the first electric capacity C1 further.Wherein, first switching tube Q1 and second switch pipe Q2 is connected in series mutually, first switching tube Q1 of mutual series connection and second switch pipe Q2 is connected between the first DC terminal a1 of two-way DC/DC module 30 and the 3rd DC terminal a3, the control of the controlled device module 80 of the first switching tube Q1 and second switch pipe Q2, and between the first switching tube Q1 and second switch pipe Q2, there is first node A.First diode D1 and the first switching tube Q1 reverse parallel connection, the second diode D2 and second switch pipe Q2 reverse parallel connection, one end of the first inductance L 1 is connected with first node A, and the other end of the first inductance L 1 is connected with one end of electrokinetic cell 10.One end of first electric capacity C1 is connected with the other end of the first inductance L 1, and the other end of the first electric capacity C1 is connected with the other end of electrokinetic cell 10.

In one embodiment of the invention, as shown in Figure 5, also comprise for the first charging controlling brancher 401, first charging controlling brancher 401: leakage current cuts down module 102.Wherein, leakage current reduction module 102 is connected between the first DC terminal a1 of two-way DC/DC module 30 and the 3rd DC terminal a3 of two-way DC/DC module 30.Specifically, leakage current is cut down module 102 and is comprised the second electric capacity C2 and the 3rd electric capacity C3, one end of second electric capacity C2 is connected with one end of the 3rd electric capacity C3, the other end of the second electric capacity C2 is connected with the first DC terminal a1 of two-way DC/DC module 30, the other end of the 3rd electric capacity C3 is connected with the 3rd DC terminal a3 of two-way DC/DC module 30, wherein, between the second electric capacity C2 and the 3rd electric capacity C3, there is Section Point B.

Usually due to inversion and the grid-connected system of transless isolation, the difficult point that ubiquity leakage current is large.Therefore, this charging system 100 increases leakage current at DC bus positive and negative terminal and cuts down module 102, can effectively reduce leakage current.Leakage current is cut down module 102 and is comprised two electric capacity C2 and C3 of the same type, it is arranged between DC bus positive and negative terminal and three-phase alternating current midpoint potential, the high-frequency current of generation can be fed back to DC side when native system works, system high-frequency leakage current operationally can be effectively reduced.

In one embodiment of the invention, as shown in Figure 5, the charging system of this electric automobile also comprises filtration module 103, filtering control module 104 and the second preliminary filling control module 106.

Wherein, filtration module 103 is connected between two-way DC/AC module 50 and charge and discharge control module 70.Specifically, as shown in Figure 5, filtration module 103 comprises inductance L _a, L _b, L _cwith electric capacity C4, C5, C6, and two-way DC/AC module 50 can comprise six IGBT, and the tie point between upper and lower two IGBT is connected with motor control switch 60 with filtration module 103 respectively by electrical bus.

As shown in Figure 5, filtering control module 104 is connected between Section Point B and filtration module 103, and the controlled device module 80 of filtering control module 104 controls, controller module 80 controls filtering control module 104 when the current residing mode of operation of charging system is drive pattern and disconnects.Wherein, filtering control module 104 can be electric capacity transfer relay, is made up of contactor K10.First charging inlet INT1 is connected between the charge and discharge control module 70 of charging gun 1 and correspondence.

Second preliminary filling module 106 is in parallel with charge and discharge control module 70, and the second preliminary filling control module 106 is for carrying out precharge to electric capacity C4, C5, the C6 in filtration module 103.Wherein, the second preliminary filling control module 106 comprises three resistance R of series connection mutually _a, R _b, R _cwith three-phase preliminary filling K switch 9.

In one embodiment of the invention, as shown in Figure 5, charge and discharge control module 70 comprises threephase switch K8 and/or single-phase switch K7 further, for realizing three-phase discharge and recharge or single-phase discharge and recharge.

In an embodiment of the present invention, when charging system starts, it is closed to carry out precharge to the first electric capacity C1 in two-way DC/DC module 30 and bus capacitor C0 that controller module 80 controls the first preliminary filling module 101, and when the voltage of bus capacitor C0 becomes preset multiple with the voltage of electrokinetic cell 10, control the first preliminary filling module 101 and disconnect and control the first K switch 1 simultaneously and close.Like this, the critical piece of battery low-temp activation technology is realized by two-way DC/DC module 30 and the Large Copacity bus capacitor C0 composition be connected directly between electrical bus and DC bus, for the electric energy of electrokinetic cell 10 is charged in Large Copacity bus capacitor C0 by two-way DC/DC module 30, when again the electric energy stored in Large Copacity bus capacitor C0 being filled back electrokinetic cell 10(namely to power battery charging by two-way DC/DC module 30), make the temperature of electrokinetic cell rise to optimum working temperature scope to electrokinetic cell 10 cycle charge-discharge.

When the current residing mode of operation of charging system is drive pattern, it is closed to close two-way DC/DC module 30 that controller module 80 controls drived control switch 40, and it is closed with driven motor M to control motor control switch 60, and control charge and discharge control module 70 disconnects.It should be noted that, in an embodiment of the present invention, although motor control switch 60 includes three switches be connected with the input of motor three-phase in Fig. 5, two switches be connected with the input of motor two-phase also can be comprised in other embodiments of the invention, even a switch.As long as the control to motor can be realized at this.Therefore, other embodiments do not repeat them here.Like this, by two-way DC/AC module 50 DC inverter of electrokinetic cell 10 be alternating current and flow to motor M, can utilize and rotate transformation decoder technique and space vector pulse width modulation (SVPWM) control algolithm to control the operation of motor M.

For single charging gun, when the current residing mode of operation of charging system is charge and discharge mode, controller module 80 controls drived control switch 40 and disconnects starting two-way DC/DC module 30, and control motor control switch 60 and disconnect motor M being shifted out, and it is closed to control charge and discharge control module 70, makes external power source such as three-phase electricity or single-phase electricity can normally be charged for electrokinetic cell 10 by charging gun 1.Namely say, by detecting the relevant information of charging connection signal, AC network electricity system and car load battery management, use two-way DC/AC module 50 and carry out controlled rectification function, and in conjunction with two-way DC/DC module 30, can realize single-phase three-phase electricity to the charging of vehicle mounted dynamic battery 10.

By two even multiple charging guns, electrokinetic cell is charged, large charging current can be provided, thus greatly shorten the charging interval, need the application scenarios of great-capacity power battery more applicable for some electronic buses etc.

In addition, in an embodiment of the present invention, as shown in Figure 6, the charging system of this electric automobile can also comprise instrument 107, battery manager 108 and car load signal 109.

In one embodiment of the invention, as shown in Figure 7, controller module 80 comprises control board 201 and drive plate 202.Wherein, the control module on control board 201 adopts two high-speed digital video camera chips (DSP1 and DSP2) to control.Control module on control board 201 is connected with whole vehicle information interface 203, and mutually carries out information interaction.Control module on control board 201 receives busbar voltage sampled signal, IPM guard signal and the IGBT temperature sampled signal etc. that the driver module on drive plate 202 exports, and output pulse width modulation (PWM) signal is to driver module simultaneously.

Wherein, as shown in Figure 8, DSP1 is mainly used in controlling, and DSP2 is used for information gathering.Sampling unit in DSP1 exports throttle signal, busbar voltage sampled signal, brake signal, DC voltage sampled signal, current of electric Hall V phase signals, current of electric Hall W phase signals, charging controls current Hall U phase signals, charging controls current Hall V phase signals, charging controls current Hall W phase signals, direct current hall signal, inverter voltage U phase signals, inverter voltage V phase signals, inverter voltage W phase signals, line voltage U phase signals, line voltage V phase signals, line voltage W phase signals, inversion U phase lock-on signal, the sampled signals such as electrical network U phase lock-on signal, the switch control unit output motor A phase switching signal in DSP1, motor B phase switching signal, electrical network A phase switching signal, electrical network B phase switching signal, electrical network C phase switching signal, three-phase preliminary filling switching signal and electric capacity transfer relay signal etc., the driver element in DSP1 exports A phase PWM1 signal, A phase PWM2 signal, B phase PWM1 signal, B phase PWM2 signal, C phase PWM1 signal, C phase PWM2 signal, DC phase PWM1 signal, DC phase PWM2 signal and IPM guard signal etc., DSP1 also have revolve varying signal export control, serial communication, hardware protection, the functions such as CAN communication and gear control.Sampling unit in DSP2 exports power supply monitor signal, power supply monitoring signal, throttle 1 signal, brake 2 signals, throttle 2 signal, brake 1 signal, motor simulation temperature signal, electricity leakage sensor signal, heat-sink temperature signal, DC side inductor temperature sampled signal, V phase inductance temperature sampling signal, U phase inductance temperature sampling signal, W phase inductance temperature sampling signal, electric discharge PWM voltage sampling signal, obliquity sensor read signal, obliquity sensor chip selection signal, IGBT temperature sampling W phase signals, IGBT temperature sampling U phase signals, IGBT temperature sampling buck phase signals, IGBT temperature sampling V phase signals, motor temperature switching signal, list/three-phase diverter switch signal etc., charge-discharge control unit in DSP2 exports charge and discharge switch signal, sleep signal, electric discharge pwm signal, battery manager BMS signal, discharge and recharge exports control signal, CP signal and CC signal etc., and DSP2 also has CAN communication, Serial Communication Function.

In sum, drive function, wagon control function, AC charging function, grid-connected function at the charging system current collection machine of the electric automobile of the embodiment of the present invention, to carry function from guipure, vehicle to Vehicular charging function in one.Further, this charging system is not by simple for various functional module physical combination is integrated, but on the basis of drive and control of electric machine, by adding some peripheral components, realize the functional diversities of system, maximize and save space and cost, improve power density.

Specifically, the function of the charging system of electric automobile is simply described below:

1, motor drives function: by two-way DC/AC module 50 DC inverter of electrokinetic cell 10 be alternating current and flow to motor M, can utilize and rotate transformation decoder technique and space vector pulse width modulation (SVPWM) control algolithm to control the operation of motor M.

That is, when this charging system obtains electric work, as shown in Figure 9, this systemic-function judges that flow process comprises the following steps:

S901, charging system obtains electric.

S902, judges charging connection signal.If there is charging connection signal, then go to step S903, if not, go to step 904.

S903, enters charge and discharge control flow process.In one embodiment of the invention, also need to judge throttle, gear and brake signal.When throttle be 0, gear be N shelves, parking brake, charging connection and CC signal effective time (charging/discharging socket 20 is connected with charging connecting device), then enter charge and discharge control flow process.

S904, enters wagon control flow process.

After step S904 enters wagon control flow process, controller module 80 controls motor control switch 60 and closes, by CAN communication notice battery manager 108, battery manager 108 controls high-tension distribution box 90 couples of C1 and C0 and carries out preliminary filling, controller module 80 detects busbar voltage 187, judge that whether preliminary filling is successful, after success, notice battery manager 108 closes drived control switch 40, this system enters drive pattern, controller module 80 pairs of whole vehicle information gather simultaneously, are driven motor M by comprehensive descision process.

Carry out drive and control of electric machine function: as shown in Figure 10, controller module 80 sends pwm signal, two-way DC/AC module 50 is controlled, the DC inverter of electrokinetic cell 10 is alternating current and flows to motor M, controller module 80 resolves rotor-position by resolver, and gathers busbar voltage and motor BC phase current makes motor M run accurately.Namely say, the feedback information of the motor BC phase current signal that controller module 80 is sampled according to current sensor and resolver regulates pwm signal, finally makes motor M run accurately.

Like this, by communication module to car load throttle, brake and gear information, judge current operating condition, realize the acceleration of vehicle, deceleration and energy feedback function, make car load lower safe and reliable operation under various operating mode, ensure the fail safe of vehicle, dynamic property and ride comfort.

2, for single charging gun, charging/discharging function

(1) charging/discharging function connects confirmation and starts: as shown in figure 11, and the startup of this charging system charging/discharging function judges that flow process comprises the steps:

S1101, charge-discharge connecting device and charging gun physical connection complete, and power supply is normal.

S1102, whether power supply unit (charging pile) detects charging signals CC and connects normal.If so, then step S1103 is entered; If not, then return step S1102, continue to detect.

S1103, whether the voltage that power supply unit detects CP test point is 9V.If so, then step S1106 is entered; If not, return step S1102, continue to detect.Wherein, 9V is a default example value.

S1104, whether controller module detects charging signals CC and connects normal.If so, then step S1105 is entered; If not, then return step S1104, continue to detect.

S1105, drags down and exports charging connection signal, charging indicator light signal.

S1106, enters charging/discharging function.

As shown in figure 12, be charged as example with single charging gun, the control flow of this charging system under charge mode comprises the steps:

S1201, judge system obtain electric after whether start work completely.If so, then step S1202 is entered; If not, then return step S1201, continue to judge.

S1202, detects CC test point resistance value, determines charging connecting device capacity.

S1203, judges whether CP test point detects the pwm signal of fixed duty cycle.If so, then step S1204 is entered; If not, then step S1205 is entered.

S1204, sends charging connection and charges normal ready message, receives BMS charging permission, charging contactor adhesive message, enters step S1206.

S1205, fills electrical connection fault.

S1206, controller module adhesive internal switch.

S1207, judges that Preset Time detects whether external charging equipment sends without PWM ripple in such as 1.5 seconds.If so, then step S1208 is entered; If not, then step S1209 is entered.

S1208, is judged as outside GB charging pile, does not send PWM ripple in charging process.

S1209, sends PWM ripple to power supply unit.

S1210, judges to detect in Preset Time such as 3 seconds whether exchange input normal.If so, then step S1213 is entered; If not, then step S1211 is entered.

S1211, exchanges external charging equipment fault.

S1212, carries out abnormality processing.

S1213, enters the charging stage.

That is, as is illustrated by figs. 11 and 12, after power supply unit and controller module 80 self-inspection fault-free, according to detection CC signal resistance value determination charging connecting device capacity, detect CP signal to determine whether to connect completely, after charge-discharge connecting device connects confirmation completely, send charging and connect the normal and ready message of charging, battery manager 108 controls closed first K switch 1 of high-tension distribution box 90 and carries out preliminary filling, disconnection first pre-charge module 101 after preliminary filling completes, adhesive first K switch 1, controller module 80 receives BMS charging and allows, first K switch 1 adhesive message, discharge and recharge is ready, namely function is set by instrument, as follows: AC charging function (G to V, electrical network is to electric automobile), function (V to L is carried from guipure, electric automobile is to load), grid-connected function (V to G, electric automobile is to electrical network) and vehicle to Vehicular charging function (V to V, electric automobile is to electric automobile).Grid-connected function

(2) AC charging function (G to V): this charging system receives instrument charging instruction, battery manager 108 allows the rated current of the maximum supply current of maximum charging current, power supply unit and charge-discharge connecting device (i.e. charging/discharging socket 20 or charging gun 1), controller module 80 judges charging current minimum in three, automatically selects charging relevant parameter.And, this charging system is sampled by the sample alternating current of 183 pairs of power supply units conveying of line voltage, controller module 80 calculates alternating current voltage effective value by sampled value, ac frequency is determined by catching, judge alternating current electricity system according to magnitude of voltage and frequency, choose controling parameters according to electrical network electricity system.After determining controling parameters, controller module 80 controls the K9 in the second preliminary filling module 106 and the contactor K10 adhesive in filtering control module 104, PWM DC side bus capacitor C0 is charged, controller module 80 is sampled by the voltage of 187 pairs of bus capacitors, such as become with the voltage of electrokinetic cell after preset multiple to control adhesive threephase switch K8 again when capacitance voltage reaches selected controling parameters, disconnect K9 simultaneously.Now this charging system is according to chosen in advance parameter, controller module 80 sends pwm signal, control two-way DC/AC module 50 pairs of alternating currents and carry out rectification, again according to electrokinetic cell voltage, control two-way DC/DC module 30 pairs of voltages to regulate, finally direct current is flowed to electrokinetic cell 10, in the process, the phase current that controller module 80 feeds back according to chosen in advance target charge current and current sample 184, the electric current loop whole charging system being carried out to closed loop regulates, and final realization is charged to vehicle mounted dynamic battery 10.Thus, by detecting the relevant information of charging connection signal, AC network electricity system and car load battery management, use two-way DC/AC module 50 and carry out controlled rectification function, in conjunction with two-way DC/DC module 30, can realize single-phase three-phase electricity to the charging of vehicle mounted dynamic battery 10.

(3) function (V to L) is carried from guipure: this charging system receives instrument V to L instruction, first judge that whether power battery charged state SOC is in dischargeable range, if allow electric discharge, output electrical system is selected again according to instruction, according to the rated current of charge-discharge connecting device, intelligent selection exports peak power output and given controling parameters, and system enters control flow.First controller module 80 controls adhesive threephase switch K8, contactor K10, according to cell voltage and given output voltage, transmission pwm signal controls two-way DC/DC module 30 pairs of voltages and regulates, flowing to two-way DC/AC module 50 after reaching desired value DC inverter is alternating current, can directly for power consumption equipment is powered by special charging socket.In the process, controller module 80 regulates according to voltage sample 183 feedback, the work that proof load is safe and reliable.

Namely say, system electrification, when receiving V to L control command and the output electrical system requirement of instrument, detect the relevant information of charging connection signal and car load battery management, voltage according to battery carries out DC/DC voltage transitions, use two-way DC/AC module 50 and carry out ac converter function, stable output single-phase three-phase alternating voltage.

(4) grid-connected function (V to G): this charging system receives instrument V to G instruction, first judge that whether electrokinetic cell SOC is in dischargeable range, if allow electric discharge, output electrical system is selected again according to instruction, according to the rated current of charge-discharge connecting device, intelligent selection exports peak power output and given controling parameters, and charging system enters control flow.First controller module 80 controls adhesive threephase switch K8, contactor K10, according to cell voltage and given output voltage, transmission pwm signal controls two-way DC/DC module 30 pairs of voltages and regulates, be alternating current through two-way DC/AC module 50 DC inverter, according to the phase current that chosen in advance discharging current desired value and current sample 184 are fed back, the electric current loop whole charging system being carried out to closed loop regulates, and realizes grid-connected electric discharge.

That is, charging system powers on, when receiving the V to G control command of instrument, detect the relevant information of charging connection signal, AC network electricity system and car load battery management, voltage according to battery carries out DC/DC voltage transitions, use two-way DC/AC module 50 and carry out ac converter, realize single-phase three-phase vehicle to electrical network discharging function.

(5) vehicle is to Vehicular charging function (V to V): V to V function needs to use special attachment plug, when charging system detects that charging connection signal CC is effective, and detects that its level confirms as VTOV special charging plug, waits for instrument order.Such as, suppose that vehicle A charges to vehicle B, then vehicle A is set to discharge condition and is namely set to carry function from guipure, vehicle B is set to AC charging state, the controller module transmission charging connection of vehicle A charges normal ready message to battery manager, and battery manager controls charging and discharging circuit preliminary filling, sends charging permission, charging contactor adhesive message to controller module after completing, this charging system carries out discharging function, and sends pwm signal.After vehicle B receives charging instruction, its systems axiol-ogy is to CP signal, be judged as that powered vehicle A is ready, controller module 80 sends and connects normal message to battery manager, battery manager completes preliminary filling flow process after receiving instruction, notification controller module, and whole charging system charging is ready, starting charge function (G to V), finally realizing vehicle to filling function.

That is, system electrification, when receiving the V to V control command of instrument, detect the relevant information of charging connection signal and car load battery management, vehicle being set for exchanging out-put supply state, simulating external charging equipment simultaneously and exporting CP semiotic function, realize and need the vehicle of charging to carry out alternately.This vehicle carries out DC/DC voltage transitions according to the voltage of battery, uses two-way DC/AC module 50 and carries out ac converter, realize single-phase three-phase vehicle to vehicle to filling function.

In one embodiment of the invention, for single charging gun, as shown in figure 13, the control flow of this charging system at the end of charging electric vehicle comprises the steps:

S1301, power supply unit disconnects power switch, stops exchanging exporting, and enters step S1305.

S1302, controller module controls to stop charging, unloads, enters next step S1303.

S1303, has unloaded rear breaking inner switch, sends charging end message.

S1304, sends power down request.

S1305, charging terminates.

Wherein, as shown in figure 14, power supply unit 301 by being connected with the vehicle plug 303 of electric automobile 1000 for plug 302, thus realizes charging to electric automobile 1000.Wherein, the charging system of electric automobile detects CP signal by test point 3 and detects CC signal by test point 4, and power supply unit detects CP signal by test point 1 and detects CC signal by test point 2.Further, after charging complete, all control to disconnect the internal switch S2 in plug 302 and vehicle plug 303.

In another embodiment of the present invention, when adopting many charging guns to charge, such as adopt the first charging controlling brancher 401 and the second charging controlling brancher 402 simultaneously to power battery charging, wherein the first charging controlling brancher 401 and the second charging controlling brancher 402 share a controller 80.

In the present embodiment, as shown in figure 15, the charging system of this electric automobile comprises electrokinetic cell 10, first charging controlling brancher 401, second charging controlling brancher 402 and controller 80.Wherein, the first charging controlling brancher 401 connects charging gun 1, and the second charging controlling brancher 402 connects charging gun 2.Two-way DC/DC module 30, bus capacitor C0, two-way DC/AC module 50, filtration module 103, charge and discharge control module 70 and the second preliminary filling module 106.Further, the first charging controlling brancher 401 and the second charging controlling brancher 402 also comprise fuse FU.Electrokinetic cell 10 is connected by the first preliminary filling control module 101 and first controlling brancher 401 that charges, electrokinetic cell 10 is also connected by the first preliminary filling control module 101 and second controlling brancher 402 that charges, controller 80 controlling brancher 401 and second controlling brancher 402 that charges that charges with first is respectively connected, when wherein controller module 80 is for receiving charging signals, controls electrical network and charging respectively by the first charging controlling brancher 401 and the second charging controlling brancher 402 pairs of electrokinetic cells 10.

As a concrete example, the charging system of the electric automobile main flow when realizing charge function as shown in figure 16,

Step S161, charging gun has connected, and namely receives charging induced signal and is connected with vehicle, after having connected by external communication charging device (charging gun).

Step S162, controller gathers relevant information, enters charge mode.Particularly, controller detects charging induced signal, automatically switches to charge function.

Step S163, controller self-inspection fault-free transmitter ready message.Namely controller checks itself, after checking fault-free, by CAN signal transmitter ready information.

Step S164, adhesive direct current preliminary filling contactor.Namely after battery management receives this information.First adhesive first preliminary filling control module, carries out preliminary filling to bus place bulky capacitor.

Step S165, controller sends busbar voltage in real time.

Step S166, judgement receives voltage and whether actual electrokinetic cell voltage difference is less than threshold value 1.That is, when pre-charge pressure differs within threshold value 1 (such as threshold value 1 is 50v) with battery virtual voltage, then think and perform preliminary filling success step S167, otherwise perform step S168.

Step S167, adhesive charging contactor (i.e. the first K switch 1), postpones to disconnect preliminary filling contactor (i.e. the first preliminary filling control module).I.e. adhesive charging contactor and disconnect preliminary filling contactor.

Step S168, sends preliminary filling failure fault, disconnects preliminary filling contactor

Step S169, prompting fault.

After completing these steps, controller and external communication power supply unit carry out communication, notice external communication power supply unit (charging pile) can export three-phase alternating current, after three-phase alternating current input, three-phase alternating voltage amplitude, frequency and phase sequence are detected, detect errorless after, as shown in figure 17, show single rifle charging time control flow.

Particularly, as shown in figure 17, during single charging gun charging, control flow is as follows:

Step S171: charging contactor (the first K switch 1) adhesive, controller and power supply unit (charging pile) communication complete.

Step S172: power supply unit exports three-phase or single-phase alternating current.

Step S173: judge to three-phase or single-phase alternating current frequency, amplitude and Phase sequence detection whether normal.If normal, then perform step S174, otherwise perform step S182.

Step S174: adhesive capacitor switching contactor (i.e. filtering control module 104).

Step S175: adhesive exchanges preliminary filling contactor (i.e. the second preliminary filling control module 106).

Step S176: judge whether busbar voltage reaches setting threshold 2, if reached, then performs step S177, otherwise performs step S181.

Step S177: adhesive A.C. contactor (i.e. threephase switch K8 or single-phase switch K7), postpones to disconnect interchange preliminary filling contactor (i.e. three-phase preliminary filling K switch 9).

Step S178: setting busbar voltage desired value, starts two-way DC/AC module 50 and work.

Step S179: busbar voltage desired value is stablized, and starts two-way DC/DC module 30 and works.

Step S180: regulate charge power to rated power to complete charging.

Step S181: send preliminary filling failure fault, disconnect preliminary filling contactor (i.e. the first preliminary filling control module 101).

Step S182: point out fault and complete charge.

In one embodiment of the invention, the charging control mode adopted as shown in figure 17 if two charging guns charge simultaneously, now can there is a problem is because controller is be connected on same electrokinetic cell in DC side, and the AC distribution of AC also from same power distribution equipment out, therefore when the first preliminary filling control module 101 works, second preliminary filling control module 102 there will be busbar voltage and to rise violently rapidly the rated voltage of electric capacity when restarting work, such electric capacity just exists the risk damaged.For solving this problem, method proposes another charge initiation flow process.Two charging guns charge to electrokinetic cell simultaneously.Particularly, adopt flow process that two charging gun charges to electrokinetic cell as shown in figure 18, specifically comprise the following steps:

Step S191: charging contactor adhesive (i.e. the first K switch 1), controller and power supply unit communication complete.

Step S192: power supply unit exports three-phase or single-phase alternating current.

Step S193: whether normally judge three-phase alternating current frequency, amplitude and Phase sequence detection.If normal, perform step S194, otherwise perform step S204.

Step S194: busbar voltage desired value is stablized, and starts two-way DC/DC module 30 and works, keeps charge power to be zero.

Step S195: adhesive capacitor switching contactor (i.e. filtering control module 104).

Step S196: adhesive exchanges preliminary filling contactor (i.e. the second preliminary filling control module 106).

Step S197: judge whether busbar voltage reaches setting threshold 3, if it is performs step S198, otherwise performs step S204.

Step S198: adhesive A.C. contactor (i.e. threephase switch K8 or single-phase switch K7), time delay disconnects and exchanges preliminary filling contactor (i.e. three-phase preliminary filling K switch 9).

Step S199: setting busbar voltage desired value, starts two-way DC/AC module 50 and work.

Step S200: judgement is single rifle (single charging gun) or two charging gun.If two charging gun, then perform step S201, otherwise perform step S203.

Step S201: first regulate charge power to semi-load (operating state semi-load).

Step S202: judge whether another branch road charge power reaches semi-load.If it is perform step S203, otherwise perform step S201.

Step S203: regulate charge power to rated power until charging complete.

Step S204: send preliminary filling failure fault, disconnect preliminary filling contactor (i.e. the first preliminary filling control module 101).

Step S205: prompting fault, and complete charge.

That is, first, first control the startup of two-way DC/DC module and carry out work, now higher direct voltage is converted to lower direct voltage by this two-way DC/DC module.Calculate the initial duty cycle of given IGBT according to three-phase controlled rectification place busbar voltage and battery side potentiometer, with this ensure two-way DC/DC module start carry out work time non-impact current and under ensureing this kind of state the electric current of system works for 0.Secondly adhesive preliminary filling contactor, the voltage according to electrical network judges pre-charge pressure, is then judged as preliminary filling success when reaching a certain magnitude of voltage, adhesive first switch after preliminary filling success, after adhesive completes, postpones setting-up time and disconnects preliminary filling contactor.Finally start two-way DC/AC module, this place mainly utilizes SPWM algorithm to control, main purpose stablizes the voltage at bus place, needs the rated capacity of maximum power and the battery pack reached to determine the desired value of controlled rectification busbar voltage, when busbar voltage reaches set point according to charging.According to given target charge power, two-way DC/DC module is regulated, under finally can being stabilized in target charge power, carry out work.

When two charging gun charged in parallel, suppose that the first preliminary filling control module 101 starts work, now the second preliminary filling control module 102 prepares startup work, at this moment there is the interference to the first preliminary filling control module 101 when the second preliminary filling control module 102 starts work, for solving this problem, add the control method of power division and first carry out work semi-load after two charging paths steady operations equal semi-load, then controlling two charging paths and be progressively adjusted to and fully loaded carry out work.

Particularly, during rush-harvesting and rush-planting charged in parallel, first preliminary filling control module 101 is consistent with the three-phase controlled rectification busbar voltage desired value of the second preliminary filling control module 102, but because busbar voltage sampling there are differences the circuit with rush-harvesting and rush-planting charged in parallel, cause there is AC place in rush-harvesting and rush-planting charged in parallel process and there is DC component, and cause AC current waveform move on the whole or move down.All there is larger impact on whole system or on power supply unit like this, there is potential safety hazard.For solving this problem, in embodiments of the invention, propose a kind of DC component algorithm.The DC component in elimination system is carried out by the method.As shown in figure 19, specifically comprise the steps:

Step S210: gather three-phase alternating current.

Step S211: calculate three-phase alternating current sampled value and sum.

Step S212: judge that three-phase current exchanges sum sum and whether equals 0.If be not 0, then perform step S213, otherwise terminate to regulate.

Step S213:PI ring regulates.

Step S214:PI ring exports until terminate.

Its cardinal principle is the characteristic according to three-phase alternating current, the theoretical value that its three-phase current sampled value is added is 0, and calculated by the collection of the three-phase actual current to this system, this calculated value is as value of feedback, form a PI ring to regulate, regulation output is applied on three phase controllable commutating bridge.So just can eliminate the DC component problem that rush-harvesting and rush-planting charged in parallel exists, in one embodiment of the invention, for realizing above-mentioned adjustment, first charging controlling brancher and the second charging controlling brancher of the embodiment of the present invention comprise respectively further: detection module, for detecting the first-phase of AC in two-way DC/AC module to third phase electric current; Adjusting module (adjustment of PI ring), described adjusting module adjusts to third phase electric current described first-phase when the first-phase of the AC that described detection module detects is non-vanishing to third phase electric current sum.

In addition, another embodiment of the present invention also proposed a kind of charge control method of motor vehicle, and this charge control method comprises the following steps:

Step S1, controller module detects that the first charging paths is connected with power supply unit by charging gun or charging/discharging socket, and when the second charging paths is connected with power supply unit by charging gun or charging/discharging socket, sends charging connection signal to battery manager.

Step S2, battery manager detects and judges that electrokinetic cell is the need of charging after receiving the charging connection signal of controller module transmission, when electrokinetic cell needs charging, performs next step.

Step S3, battery manager sends charging signals to controller module.

Step S4, when controller module receives charging signals, controls electrical network and charges to electrokinetic cell respectively by the first charging paths and the second charging paths.

Adopt charging system for electric automobile and the charge control method thereof of technique scheme, controller module charges to electrokinetic cell respectively by the first charging paths and the second charging paths by controlling electrical network, the charge power of electric motor car is increased, thus greatly shorten the charging interval, realize quick charge, save time cost.

In an embodiment of the present invention, the charging system compatibility of above-mentioned electric automobile is in extensive range, has single-phase three-phase handoff functionality, and adapts to country variant electrical network electricity standard processed.

Particularly, as shown in figure 20, charging gun can replace with charging/discharging socket 20, as shown in figure 20, has the function that two charging sockets (such as American Standard and Europe superscript) switch.This charging/discharging socket 20 comprises single-phase charging socket 501 such as American Standard, three-phase charging socket 502 such as Europe superscript, two high voltage connector K503, K504 compositions.Single-phase charging socket 501 shares with CC, CP and PE of three-phase charging socket 502, and L, N phase line of single-phase charging socket 501 is connected with A, B of three-phase charging socket 503 by contactor K503, K504.When controller module 80 receives single-phase discharge and recharge instruction, control contactor K503, K504 are closed, make A, B phase of three-phase charging socket 502 and L, N phase line conducting of single-phase charging socket 501, three-phase charging socket 502 does not use, replace L, N phase line of single-phase charging socket 501 to be connected with charging plug by A, B phase of three-phase charging socket 502, controller module 80 can normally realize single-phase charge function.

Or, as shown in Figure 5, utilize standard 7 core socket, between N line and B phase line, increase single-phase switch K7, controller module 80 receives single-phase discharge and recharge instruction, controls single-phase switch K7 adhesive, B phase line is connected with N line, used as L, N phase line by A, B phase, attachment plug need use special attachment plug, or its B, C phase does not do the attachment plug used.

That is, in an embodiment of the present invention, charging system is by the voltage according to controller module 80 detection of grid, by calculating the frequency and the single-phase/three-phase that judge electrical network, according to computing information with after drawing electricity system, controller module 80 is according to the type of charge-discharge plug 20 and electrical network electricity system, select different controling parameters, control two-way DC/AC module 50 pairs of alternating voltages and carry out controlled rectification, two-way DC/DC module 30 carries out pressure regulation according to cell voltage to direct current, finally flows to electrokinetic cell 10.

In another example of the present invention, as shown in figure 21, be the socket of two cores, three cores and four-core from guipure placing plug, be connected with charging plug, can output single-phase, three-phase, the electric electricity made of four phases.

Figure 22 is the structure chart of the power carrier communication system of electric automobile according to another embodiment of the present invention.

As shown in figure 22, the power carrier communication system 2000 of this electric automobile comprises multiple control device 110, the automobile electric line of force 120 and multiple power carrier wave communication device 130.

Particularly, multiple control device 110 all has communication interface, and communication interface is such as but is not limited to: serial communication interface SCI.The automobile electric line of force 120 is powered for multiple control device 110 and carries out communication by the automobile electric line of force 120 between multiple control device 110.Multiple power carrier wave communication device 103 and multiple control device 110 one_to_one corresponding, multiple control device 110 is connected with corresponding power carrier wave communication device 130 by respective communication interface, be connected by the automobile electric line of force 120 between multiple power carrier wave communication device 130, wherein, multiple power carrier wave communication device 130 obtains carrier signal will send to corresponding control device after carrier signal demodulation from the automobile electric line of force 120, and receive the information of corresponding control device transmission, and will be sent to after modulates information in the automobile electric line of force 120.

Shown in Figure 22, multiple control device 110 comprises control device 1 to control device N(N >=2, and N is integer).The multiple power carrier wave communication devices 130 corresponded comprise electric carrier apparatus 1 to electric carrier apparatus N.Such as, control device 1 needs to carry out communication with control device 2, then electric carrier apparatus 1 obtains the carrier signal coming from electric carrier apparatus 2 and send from the automobile electric line of force 120, this carrier signal comes from control device 2, and is sent in the automobile electric line of force 120 after being modulated by electric carrier apparatus 2.

Wherein, as shown in figure 23, each power carrier wave communication device 130 comprises the coupler 131, filter 133, amplifier 134 and the modulator-demodulator 132 that are connected successively.

Further, as shown in figure 24, multiple power carrier wave communication device such as eight power carrier wave communication device 1-8 are connected with gateway 300 by vehicle electric power wire harness 121,122, and each power carrier wave communication device is corresponding with a control device.Such as, power carrier wave communication device 1 is corresponding with transmission control device 111, power carrier wave communication device 2 is corresponding with engine control system 112, power carrier wave communication device 3 is corresponding with driving hanger, power carrier wave communication device 4 is corresponding with air conditioning control device 114, power carrier wave communication device 5 is corresponding with air bag 115, power carrier wave communication device 6 and instrument show 116 corresponding, power carrier wave communication device 7 is corresponding with failure diagnosis 117, and power carrier wave communication device 8 is corresponding with lighting device 118.

In the present embodiment, as shown in figure 25, the method that this power carrier communication system carries out data receiver comprises the steps:

S2101, system power-up starts, and system program enters the state receiving data from power line.

S2102, the correctness that has that it's too late of detected carrier signal.If so, then step S2103 is performed; If not, then step S2104 is performed.

S2103, starts to receive the data transmitted from power line, enters next step S2105.

S2104, detects SCI mouth, judges whether SCI mouth has data.If so, then next step S2105 is entered; If not, then step S2101 is returned.

S2105, enters data receiving state.

According to the power carrier communication system of the electric automobile of the present embodiment, do not increasing on the basis of harness in vehicle, the transfer of data in car between each control system can be realized and share, and utilize power line as the power carrier communication of communication media, avoid building and investing new communication network, reduce manufacturing cost and maintenance difficulties.

In another embodiment of the present invention, the charging system of above-mentioned electric automobile adopts water-cooling pattern, and as shown in figure 26, body structure layout is that the heat radiation of inductance water channel and IGBT water channel share, and well solves heat radiation and space problem.Body structure layout is divided into two-layer up and down, dispel the heat to filtration module in the IGBT radiation water channel back side, make according to shapes of inductors, be made into inductance groove 601, utilize the side heat conduction of inductance groove 601, take away heat finally by water channel 602, inductance utilizes the glue of high thermal conductivity coefficient to be fixed, and adds the mechanical strength of heat conduction ability and global design.Charging system in the present embodiment adopts water-cooling pattern to dispel the heat, and radiating effect is better than air cooling way, can reduce filtration module volume under Same Efficieney, reduces the volume and weight of overall charging system.

In addition, the embodiment of another aspect of the present invention also proposed a kind of electric automobile, comprises above-mentioned charging system.This electric automobile can carry out high-power charging by three-phase or single-phase electricity, facilitates user to carry out quick charge to electric automobile whenever and wherever possible, has saved time cost, meet the demand of people.

Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.

In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of processor or other can from instruction execution system, device or equipment instruction fetch and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this specification, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronic installation) with one or more wiring, portable computer diskette box (magnetic device), random-access memory (ram), read-only memory (ROM), erasablely edit read-only memory (EPROM or flash memory), fiber device, and portable optic disk read-only memory (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanner to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer storage.

Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the application-specific integrated circuit (ASIC) of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.

Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.

The above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.

In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.

Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.

Claims

1. a charging system for electric automobile, is characterized in that, comprising:

Electrokinetic cell;

First charging inlet and the second charging inlet, described first charging inlet is connected with external power source with the second charging inlet;

First charging controlling brancher and the second charging controlling brancher, described first charging controlling brancher is connected between described electrokinetic cell and described first charging inlet, and described second charging controlling brancher is connected between described electrokinetic cell and described second charging inlet; And

Controller, described controller is connected with the second charging inlet with described first charging inlet, when charging, described controller controls described first charging controlling brancher and starts to set up charging path between described electrokinetic cell and described first charging inlet until described first controlling brancher that charges enters operating state semi-load, described controller controls described second charging controlling brancher and starts to set up charging path between described electrokinetic cell and described second charging inlet until described second controlling brancher that charges enters operating state semi-load, the operating power of the described first charging controlling brancher of described controller adjustment and the second charging controlling brancher enters fully loaded operating state to make described first charging controlling brancher and the second charging controlling brancher.

2. the charging system of electric automobile as claimed in claim 1, it is characterized in that, described system also comprises high-tension distribution box, and described high-tension distribution box is connected with described electrokinetic cell, and described high-tension distribution box comprises:

First preliminary filling control module and first switch in parallel with described first preliminary filling control module, described first preliminary filling control module is connected with one end of described electrokinetic cell with one end of described first switch, and described first preliminary filling control module and the other end and described first of described first switch charge the second end of controlling brancher of controlling brancher and second that charges is connected;

Drived control switch, one end of described drived control switch is connected with one end of described electrokinetic cell, and described drived control switch and described first charges, charge the 3rd end of controlling brancher of controlling brancher and second is connected,

Wherein, described first preliminary filling control module, the first switch are all connected with described controller with drived control switch.

3. the charging system of electric automobile as claimed in claim 2, is characterized in that,

When described electric automobile is in charge and discharge mode, described controller carries out precharge closed described first preliminary filling control module simultaneously by described first preliminary filling control module to described first charging controlling brancher and the second charging controlling brancher, when the busbar voltage of described first charging controlling brancher and the second charging controlling brancher to become preset multiple with the voltage of described electrokinetic cell, control described first preliminary filling control module and turn off and close described first switch.

4. the charging system of electric automobile as claimed in claim 3, is characterized in that, described first charging controlling brancher and the second charging controlling brancher comprise respectively further:

Two-way DC/DC module, second DC terminal of described two-way DC/DC module is connected with the other end of described first switch, first DC terminal of described two-way DC/DC module is connected with the other end of described electrokinetic cell, wherein, described first DC terminal is the common DC end of described two-way DC/DC module input and output;

Two-way DC/AC module, the first DC terminal of described two-way DC/AC module is connected with the other end of described drived control switch, and the second DC terminal of described two-way DC/AC module is connected with the other end of described electrokinetic cell;

Charge and discharge control module, one end of described charge and discharge control module is connected with the end that exchanges of described two-way DC/AC module, the other end of the charge and discharge control module of described first charging controlling brancher is connected with described first charging inlet, and the other end of the charge and discharge control module of described second charging controlling brancher is connected with described second charging inlet.

5. the charging system of electric automobile as claimed in claim 4, is characterized in that, also comprise:

Motor control switch, one end of described motor control switch is connected with the end that exchanges of described two-way DC/AC module, the other end of described motor control switch is connected with motor, described motor control switch is controlled by described controller, described controller, when described electric automobile is drive pattern, closes described motor control switch.

6. the charging system of electric automobile as claimed in claim 5, it is characterized in that, when the current residing mode of operation of described charging system is drive pattern, it is closed to close described two-way DC/DC module that described controller controls described drived control switch, and it is closed to control described motor control switch, and control the disconnection of described charge and discharge control module.

7. the charging system of electric automobile as claimed in claim 6, is characterized in that,

When the current residing mode of operation of described charging system is charge and discharge mode, described controller controls described drived control switch and disconnects to start described two-way DC/DC module, and control the disconnection of described motor control switch, and it is closed to control described charge and discharge control module.

8. the charging system of electric automobile as claimed in claim 4, it is characterized in that, described two-way DC/DC module comprises further:

First switching tube of mutual series connection and second switch pipe, between the first DC terminal that first switching tube of described mutual series connection and second switch pipe are connected to described two-way DC/DC module and the 3rd DC terminal, described first switching tube and second switch pipe are subject to the control of described controller, wherein, between described first switching tube and second switch pipe, there is first node;

First diode, described first diode and described first switching tube reverse parallel connection;

Second diode, described second diode and described second switch pipe reverse parallel connection;

First inductance, one end of described first inductance is connected with described first node, and the other end of described first inductance is connected with one end of described electrokinetic cell; And

First electric capacity, one end of described first electric capacity is connected with the other end of described first inductance, and the other end of described first electric capacity is connected with the other end of described electrokinetic cell.

9. the charging system of electric automobile as claimed in claim 4, is characterized in that, described first charging controlling brancher and the second charging controlling brancher also comprise respectively:

Leakage current cuts down module, and described leakage current cuts down model calling between first DC terminal and the 3rd DC terminal of described two-way DC/DC module of described two-way DC/DC module.

10. the charging system of electric automobile as claimed in claim 9, is characterized in that, described leakage current is cut down module and comprised further:

Second electric capacity and the 3rd electric capacity, one end of described second electric capacity is connected with one end of described 3rd electric capacity, the other end of described second electric capacity is connected with the first DC terminal of described two-way DC/DC module, the other end of described 3rd electric capacity is connected with the 3rd DC terminal of described two-way DC/DC module, wherein, between described second electric capacity and the 3rd electric capacity, there is Section Point.

The charging system of 11. electric automobiles as claimed in claim 10, is characterized in that, described first charging controlling brancher and the second charging controlling brancher also comprise respectively:

Filtration module, described filtration module is connected between described two-way DC/AC module and described charge and discharge control module.

The charging system of 12. electric automobiles as claimed in claim 11, is characterized in that, described first charging controlling brancher and the second charging controlling brancher also comprise respectively:

Filtering control module, described filtering control module is connected between described Section Point and described filtration module, described filtering control module controls by described controller, and described controller controls described filtering control module when the current residing mode of operation of described charging system is drive pattern and disconnects.

The charging system of 13. electric automobiles as claimed in claim 11, is characterized in that, described first charging controlling brancher and the second charging controlling brancher also comprise respectively:

Second preliminary filling control module, described second preliminary filling module and described charge and discharge control wired in parallel, described second preliminary filling control module is used for carrying out precharge to the electric capacity in described filtration module.

The charging system of 14. electric automobiles as claimed in claim 4, it is characterized in that, described charge and discharge control module comprises further:

Threephase switch and/or single-phase switch, for realizing three-phase discharge and recharge or single-phase discharge and recharge.

The charging system of 15. electric automobiles as claimed in claim 4, is characterized in that, described first charging controlling brancher and the second charging controlling brancher also comprise respectively:

Detection module, for detecting the first-phase of AC in two-way DC/AC module to third phase electric current;

Adjusting module, described adjusting module adjusts to third phase electric current described first-phase when the first-phase of the AC that described detection module detects is non-vanishing to third phase electric current sum.

16. 1 kinds of electric automobiles, is characterized in that, comprise the charging system as described in any one of claim 1-15.