CN104143845B - Wireless charging detecting system for electric automobile - Google Patents

Abstract

The present invention provides a kind of wireless charging detecting system for electric automobile, including: electric energy provides device, electric energy to receive device and battery manager, wherein said electric energy provides device to be connected with described charging station, described electric energy receives device and described battery manager is positioned on described electric automobile, and described electric energy provides device to be used for utilizing electromagnetic induction to receive device transmission electric energy to described electric energy；Described electric energy receives device, described electric energy receives device and is positioned on described electric automobile, for the electric energy that described electric energy provides device to provide being further transmitted to the vehicle mounted dynamic battery of described electric automobile, and after entering wireless charging flow process, carry out self-inspection in real time, if detection exists fault, then send fault-signal to described battery manager；Described battery manager, for disconnecting described wireless charging loop to stop wireless charging after receiving described fault-signal.The present invention is to improve security reliability and the service life of charging equipment.

Description

Wireless charging detecting system for electric automobile

Technical field

The present invention relates to electric vehicle engineering field, particularly to a kind of wireless charging electric-examination for electric automobile Examining system.

Background technology

Along with the continuous popularization of new-energy automobile, particularly electric automobile or hybrid vehicle, new forms of energy Automobile is the most relevant to our daily life.The charging modes of electric automobile is mainly wired filling at present Electrically, but there is a lot of weak point in wired charging modes of routine, and wireless charging mode can be more Mend these not enough.

Wireless charging has started to be applied in some small-power charging field at present, such as mobile phone charging.But It is, for the high-power wireless charging equipment of charging electric vehicle at present also in the starting stage, to there is also very Many weak points, such as function is less, control strategy imperfection, charge power can not be according to cars in system detection Carry the state of electrokinetic cell and change etc..It addition, charge, for electric motor car relative to the small-power of mobile phone High-power charging is higher to the requirement of security.But the existing wireless charging scheme to electric automobile is the most not There is perfect monitoring function, and, it is impossible to the ruuning situation of each parts and each portion in real-time detecting system The electric parameter of part.Further, the existing wireless charging scheme to electric automobile can't carry to electric automobile For safeguard measure, and charge power cannot be changed according to car in the information of electrokinetic cell.

Summary of the invention

It is contemplated that solve one of above-mentioned technical problem the most to a certain extent.To this end, the mesh of the present invention Be a kind of wireless charging detecting system for electric automobile is proposed, this system can improve charging equipment Security reliability and service life.

For achieving the above object, the embodiment of the present invention provides a kind of wireless charging for electric automobile to detect system System, including: electric energy provides device, electric energy to receive device and battery manager, and wherein said electric energy provides dress Putting and be connected with described charging station, described electric energy receives device and described battery manager is positioned at described electric automobile On, described electric energy provides device to be used for utilizing electromagnetic induction to receive device transmission electric energy to described electric energy；Described Electric energy receives device, and described electric energy receives device and is positioned on described electric automobile, for being carried by described electric energy Electric energy for device offer is further transmitted to the vehicle mounted dynamic battery of described electric automobile, and is entering nothing After line charging flow, carry out self-inspection in real time, if detection exists fault, then send to described battery manager Fault-signal；

Described battery manager, for disconnect after receiving described fault-signal described wireless charging loop with Stop wireless charging.

The wireless charging detecting system for electric automobile according to embodiments of the present invention, can improve electric motor car and exist Safety and reliability during charging.The wireless charging detecting system for electric automobile of the embodiment of the present invention Detection include on-vehicle battery temperature detection, voltage detecting, voltage sample line burn out detection, temperature sampling line The detection of burn out detection, high-pressure system insulating monitoring, transmitting end equipment, receiving device detection, current monitoring, The multiple detections such as wireless charging ECU fault, have higher security.Charging start time and during, As long as breaking down, wireless charging system can process according to fault message.Additionally, the employing present invention The wireless charging detecting system of embodiment is easy to the maintenance of wireless charging system, it is simple to find out failure cause, gives After-sales service is provided convenience.The wireless charging detecting system using the embodiment of the present invention can also improve wireless The service life of charging system.

The additional aspect of the present invention and advantage will part be given in the following description, and part will be retouched from following Become obvious in stating, or recognized by the practice of the present invention.

Accompanying drawing explanation

Above-mentioned and/or the additional aspect of the present invention and advantage are from combining the accompanying drawings below description to embodiment Will be apparent from easy to understand, wherein:

Fig. 1 is the schematic diagram of the wireless charging system for electric automobile according to the embodiment of the present invention；

Fig. 2 is the electric energy transfer principle figure of the wireless charging system in Fig. 1；

Fig. 3 is the communication network schematic diagram of the wireless charging system according to the embodiment of the present invention；

Fig. 4 is electric automobile is carried out wireless charging charges the preparatory stage according to the embodiment of the present invention Control flow chart；

Fig. 5 is the control flow chart that electric automobile carries out the wireless charging stage according to the embodiment of the present invention；

Fig. 6 is the schematic diagram for the electronic wireless charging detecting system crossing automobile implemented according to the present invention；

Fig. 7 is the battery temperature according to the embodiment of the present invention and voltage monitoring schematic diagram；

Fig. 8 is the wireless charging transmitting terminal according to the embodiment of the present invention and receiving terminal fault detect schematic diagram；

Fig. 9 is the schematic diagram of the electrokinetic cell detection of electrical leakage according to the embodiment of the present invention；

Figure 10 is the schematic diagram of the electrokinetic cell detection of electrical leakage according to the embodiment of the present invention；And

Figure 11 is the control flow chart of the wireless charging system detecting system according to the embodiment of the present invention.

Detailed description of the invention

Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, wherein certainly Begin to same or similar label eventually represent same or similar element or there is the unit of same or like function Part.The embodiment described below with reference to accompanying drawing is exemplary, it is intended to be used for explaining the present invention, and not It is understood that as limitation of the present invention.

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 one or more this feature.The present invention's In description, " multiple " are meant that two or more, unless otherwise expressly limited specifically.

In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", The term such as " fix " should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, Or be integrally connected；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 It is indirectly connected to by intermediary, can be the connection of two element internals.Ordinary skill for this area For personnel, above-mentioned term concrete meaning in the present invention can be understood as the case may be.

Referring to figs. 1 to Fig. 5, the wireless charging system for electric automobile is described first below.

Specifically, the wireless charging system for electric automobile can be according to electromagnetic induction principle, by being contained in The primary winding of charging station transmits electric energy to mounted in a vehicle secondary coil, to realize filling on-vehicle battery Electricity.This mode can improve the reliability of charging equipment, security and service life.

In order to realize wireless charging, charging station and electric motor car must install supporting equipment, transmitting terminal with connect Carrying out information by home control network communication protocol between receiving end mutual, the content of communications protocol includes identification, electricity Pond information, charging control signal, safeguard protection signal etc..On electric automobile, charging receiving end must be able to be examined Measuring neighbouring charging transmitting terminal, transmitting terminal also is able to neighbouring receiving terminal be detected.Wherein, transmitting terminal is i.e. Thering is provided end for electric energy, receiving terminal is electric energy receiving terminal.

As it is shown in figure 1, wireless charging system mainly includes master server 900, is arranged on the transmitting of charging station End equipment 100, power supply unit and be arranged in electric motor car reception equipment 200, battery manager 300, car Carry electrokinetic cell 402, high-tension distribution box 401, instrument 700 and instrument wireless charging switch 800 etc..Its In, charging control strategy and wireless charging system need to support the use, and what charging control strategy mainly described is To the concrete operations flow process of charging battery of electric vehicle.

Charging control strategy includes: electric automobile must just allow charging under dead ship condition；Onboard power electricity Pond 402 must meet the condition of wireless charging and just allow to be charged；Onboard wireless charging equipment is arranged on car The end, charging station wireless charging device is installed on the ground；Master server 900 is sent out with platform by dedicated network Penetrate end equipment 100 communication；Onboard wireless charging equipment and charging station wireless charging device need alignment；Need to be by The user decide whether to need charging；Charging modes is that wireless charging, transmitting terminal and receiving terminal pass through electromagnetic induction Realize the transmission of electric energy；Wireless charging system has perfect safety monitoring function, and can be according to on-vehicle battery State changes charge power.

Wherein, stopping for charging refers to that car load hangs over P shelves or N shelves, and other high voltage electric equipment of car load also can Work, in addition to motor simultaneously.During wireless charging, it is not responding to the change of gear signal.

The most again the function of each equipment in wireless charging system is described.

Specifically, the transmitting end equipment 100 of charging station refers to that the wireless charging being arranged on charging station platform sets Standby, transmitting end equipment 100 is transferred to be arranged in electric motor car reception equipment 200 by electromagnetic induction energy. The equipment that receives in electric motor car is primarily referred to as onboard wireless charging ECU(Electronic Control Unit, Electronic control unit).Wherein, onboard wireless charging ECU can be by wireless signal and transmitting end equipment 100 Communicate wirelessly, and can realize carrying out CAN(Controller Area with the Other related equipment on car Network, controller local area network) communication, it is possible to receive the energy that transmitting terminal 100 transmits, and Power output can be changed according to the charge power demand of car load, charges to vehicle mounted dynamic battery 402.

Battery manager 300 have vehicle mounted dynamic battery 402 is carried out temperature sampling, voltage sample, to dynamic The function of power battery charging and discharging current sample, has the function calculating battery dump energy, and can pass through CAN communication bundle of lines control signal is sent to the electric component being correlated with, to realize the management to battery functi on.

Vehicle mounted dynamic battery 402 for being arranged in electric motor car, for electric motor car provide power output and be on car The energy storage device that other electrical equipments are powered, can charge repeatedly.

High-tension distribution box 401 is the high tension apparatus of the big electric current of break-make, includes multiple contactor, battery inside it Manager 300 can control its inside contactor by transmission control signal to high-tension distribution box 401 Guan Bi and shutoff, thus reach to control the purpose of big current switching.

A low pressure connector is had, for by receiving battery manager 300 in high-tension distribution box 401 Control signal is to control the break-make of inside contactor.

Master server 900 is primarily referred to as being responsible for the equipment of subscriber information management, and master server 900 have recorded The electric automobile VIN code of registered users and the number-plate number, carry out authentication for wireless charging.

Additionally, in wireless charging system, battery manager 300 passes through with onboard wireless charging ECU200 CAN line connects.Onboard wireless charging ECU200 is connected with high-tension distribution box 401 by high-voltage wiring harness.High It is press-fitted electronic box 401 to be connected with vehicle mounted dynamic battery 402 by high-voltage wiring harness.

Additionally, onboard wireless charging ECU200 is with a low pressure connector, the effect of this low pressure connector It is to carry out communication with the parts in electric motor car, including the CAN communication holding wire with battery manager 300, Self-test signal line, fault-signal line and low-voltage power supply line.

Instrument wireless charging switch 800 by user's control, instrument occur pressing when wireless charging is pointed out this by Button, then charging starts, and presses this button during wireless charging, then charging terminates.Battery manager 300 detect this switching signal.

Fig. 2 shows the internal electric schematic diagram of wireless charging system.Electric energy by power supply grid to onboard power The transfer process of battery, through links such as AC-DC conversion, inversion, electromagnetic coupled, rectification, voltage stabilizings.

Specifically, electric energy provides device 100, i.e. charging station wireless charging device, and wherein, electric energy provides dress Put 100 include charging station electrical network 101, ac-dc converter circuit 102, down-conversion circuitry 103 and launch Coil 104.Specifically, charging station electrical network 101 is for providing the three of 380V to intersect for wireless charging device Stream power supply.Ac-dc converter circuit 102 is for changing the 380V three-phase alternating current of charging station electrical network 101 Become the direct current of voltage stabilization.Down-conversion circuitry 103 is straight for exported by ac-dc converter circuit 102 Stream electricity is converted into the alternating source of certain frequency.Transmitting coil 104 is for changing down-conversion circuitry 103 The alternating current obtained is launched with the form of electromagnetic field.Wherein, the alternating current that frequency is certain is through launching Coil 104, produces the magnetic field of CF change.

Electric energy receives device 200, i.e. onboard wireless charging ECU.Wherein, electric energy reception device 200 includes Receive coil 201, rectification circuit 202, control module 203 and mu balanced circuit 204.Wherein, line is received Circle 201 produces induced-current in the alternating magnetic field that transmitting coil 104 produces, thus realizes electric energy from charging Electrical network 101 of standing arrives the transmission of onboard wireless charging ECU200.Rectification circuit 202 will receive coil 201 Ac voltage signal is converted into d. c. voltage signal.Control module 203 is mainly according to battery manager 300 The battery information sent and charge power demand, control the power output of rectification circuit 202.Mu balanced circuit The voltage signal of 204 pairs of rectification circuit 202 outputs is filtered processing, and the DC voltage making output is the most flat Surely.

That is vehicle-mounted energy-storage travelling wave tube of vehicle mounted dynamic battery assembly 400.Wherein, vehicle mounted dynamic battery assembly 400 wraps Include high-tension distribution box 401 and vehicle mounted dynamic battery 402.Wherein, high-tension distribution box 401 is mainly used in conduct The equipment of break-make high pressure.In one embodiment of the invention, high-tension distribution box 401 is for as wireless charging The switch of electricity high-pressure side.High-tension distribution box is receiving the wireless charging contactor that battery manager sends over After pickup signal, the wireless charging contactor adhesive within high-tension distribution box 401, wireless charging loop turns on, Charging starts.At the end of charging, battery manager 300 sends wireless charging contactor cut-off signal, the highest Being press-fitted the wireless communication charging contactor within electronic box 401 to disconnect, wireless charging loop disconnects.

Vehicle mounted dynamic battery 402 provides electric power output for electric motor car, during carrying out wireless charging, vehicle-mounted Wireless charging ECU200 charges to vehicle mounted dynamic battery 402.

Fig. 3 is the communication network figure of whole wireless charging system.As it is shown on figure 3, whole wireless charging communication Net includes Power Environment Monitoring Network, comfortable net, battery subnet, wireless charging subnet, onboard wireless charging net and server Subnet.

Separately below each communication network is illustrated.

Battery subnet is mainly the communication network between battery information collector 140 and battery manager 300, Communication speed could be arranged to 250kbps, and battery information collector 140 gathers the voltage of vehicle mounted dynamic battery And temperature information, and it being sent to battery manager 300 by battery subnet, battery manager collects battery letter Breath, carries out respective handling.

Server subnet is primarily referred to as platform wireless charging device (transmitting end equipment 100) and wireless charging master Communication network between server 900, platform wireless charging device 100 receives onboard wireless charging equipment After the electric automobile VIN code sent and number-plate number information, this information is sent to master server 900. Master server 900 determines whether to register user, and sends authentication information and set to platform wireless charging Standby, carry out respective handling.

Wireless charging subnet is mainly onboard wireless charging ECU200 and charging station platform transmitting end equipment 100 Between communication network, communication speed could be arranged to 250kbps.Onboard wireless charging ECU200 is to sending out Penetrate end equipment 100 and send current state information and the charge power demand of vehicle mounted dynamic battery 402.Launch End equipment 100 is adjusted correspondingly according to the battery information received.Platform wireless charging device 100 Calculate charge capacity, and be sent to onboard wireless charging ECU200.Onboard wireless charging ECU200 is to platform Wireless charging device 100 sends electric automobile VIN and license board information.Platform wireless charging device 100 is verified This electric automobile information is also correspondingly processed.Platform wireless charging device 100 is set for nothing according to user Line charges, and in real time and communicates wirelessly between onboard wireless charging ECU200.

Battery manager 300 carries out communication by CAN line with onboard wireless charging ECU200, the speed of communication Rate may be configured as 250kbps.Battery manager 300 sends battery to onboard wireless charging ECU200 in real time Status information, when onboard wireless charging ECU200 fault, battery manager 300 receives onboard wireless and fills The fault-signal that electricity ECU200 sends, stops wireless charging.

Power Environment Monitoring Network is mainly the communication network between on-board high-voltage device.When wireless charging is carried out, speed is Zero, car load is in N shelves or P shelves.Battery manager 300 sends wireless charging signal and sets to other high pressure Standby, to coordinate the carrying out of wireless charging.Such as send signal to electric machine controller, forbid that power of motor exports.

If the communication network that comfortable host's battery manager 300 is between instrument 700, in order to instrument Show on 700 that wireless charging indication signal, instrument wireless charging switching signal are sent to battery by instrument 700 Manager, as startup and the stopping signal of wireless charging.

Fig. 4 is electric automobile to carry out wireless charging charge the control flow of preparatory stage.

Step S401, car load high pressure powers on.

Step S402, after electric motor car traveling to charging platform is static, platform wireless charging searched by electric automobile Device signal.

Step S403, whether onboard wireless charging ECU detects platform wireless charging device signal.

Whether step S404, wait and also not examining more than 30S, if it is not, then perform step S405, as Fruit is, then perform step S412.

Step S405, onboard wireless charging ECU sends wireless charging request signal to battery manager.

Specifically, under normal circumstances: high-tension electricity on car load, on battery manager detection Power Environment Monitoring Network, gear controls The gear signal of the current power automobile that device sends, if battery manager detects that current gear signal is P Shelves or N shelves, then battery manager is sent by onboard wireless charging net wireless charging ECU on car and starts Working signal, then whether wireless charging ECU has wireless charging device to send out near 1S detection electric automobile The identification signal sent, if be not detected by wireless charging device identification signal, then wireless charging ECU in 30S Quit work.If there being wireless charging device identification signal near detecting, then by onboard wireless charging net to Battery manager sends wireless charging request.

Step S406, whether battery manager detection vehicle mounted dynamic battery SOC is more than 95%.

After battery manager receives the charge request signal that wireless charging ECU sends, first detect onboard power The SOC(dump energy of battery) whether more than 95%, if dump energy is more than 95%, then battery manager It is not responding to the charge request of wireless charging ECU, forbids wireless charging.If battery dump energy is less than 95%, Then whether battery manager detection vehicle mounted dynamic battery exists fault, too high including electrokinetic cell monomer temperature, Electrokinetic cell monomer voltage is too high, electrokinetic cell electric leakage, electrokinetic cell sampling line disconnect, battery manager with The faults such as battery information collector communication failures, if there is above-mentioned fault, then forbid wireless charging.Battery Manager is by gateway transmission alarm signal to instrument, and instrument shows forbids wireless charging.

Battery manager work during, battery information collector gather always vehicle mounted dynamic battery voltage and Temperature information, and by battery subnet, battery information is sent to battery manager.When the highest electricity of battery cell Pressure or maximum temperature are higher than setting value, and lasting 50 voltages or temperature sampling result all exist exception, Then battery manager confirms that electrokinetic cell exists fault, and sends fault-signal by gateway to instrument, passes through Onboard wireless charging net sends charging termination information to wireless charging ECU, is sent out to distribution box by hard signal Sending level controling signal, controller internal wireless charging contactor disconnects, and wireless charging terminates.

Step S407, it is judged that whether electrokinetic cell exists fault, if it is, perform step S408, no Then perform step S749.

Step S408, instrument display electrokinetic cell fault, then perform step S412.

Step S409, battery manager sends a signal to instrument, and instrument prompts the user whether to need wireless charging Electricity.

Step S410, it is judged that whether user presses wireless charging switch, if it is, perform step S413, Otherwise perform step S411.

Whether step S411, wait more than 30S, if it is, perform step S412, otherwise returns step Rapid S409.

Step S412, forbids wireless charging.

Step S413, the VIN code of wireless charging ECU record electric automobile and electric automobile information, concurrently Give transmitting end equipment.

Step S414, transmitting end equipment identification electric automobile identity information.

Step S415, transmitting end equipment obtains electric automobile identity information, and is sent to master server.

Step S416, master server determines whether registration user, if it is, perform step S420, Otherwise perform step S417.

Step S417, sends authentication failed information to transmitting end equipment.

Step S418, transmitting terminal sends forbids that wireless charging signal charges ECU to onboard wireless, wireless charging Terminate.

Step S419, instrument prompting " this electric automobile is without charging authority ".

Step S420, transmitting terminal wireless charging is ready.

Step S421, battery manager controls adhesive wireless charging preliminary filling contactor.

Step S422, it is judged that in the range of whether pre-charge pressure reaches electrokinetic cell voltage swing ± 50V, i.e. inhale Close wireless charging contactor and disconnect preliminary filling contactor

Step S423, disconnection of wireless charging preliminary filling contactor, forbid charging.

Step S424, enters wireless charging flow process.

Specifically, if battery manager 300 detection electrokinetic cell fault-free, then battery manager 300 Transmission charge permission signal is to instrument 700, and instrument 700 prompts the user whether to need to carry out wireless charging.If After instrument prompting wireless charging request signal after 30S, user do not press wireless charging on instrument desk by Button, then instrument shows and forbids wireless charging.If user presses wireless charging button, then battery manager After 300 detect switching signal, wireless charging ECU200 record electric automobile VIN code and the number-plate number, And it is sent to transmitting end equipment 100.100 electric automobile VIN codes of transmitting end equipment on charging station and car Trade mark information is sent to master server 900, and master server 900 determines whether to register user, if registration User, then send authentication successful information to platform transmitting end equipment 100, platform transmitting end equipment 100 Prepare to transmit electric energy to electric motor car wireless charging receiving device 200, and record charge capacity, if non-registered User, then master server 900 sends authentication failure information to platform transmitting end equipment 100.Charging station On transmitting end equipment send and forbid that wireless charging signal charges ECU to onboard wireless, forbid charging, instrument Prompting " this electric automobile is without charging authority ".

If electric automobile passes through authentication, then battery manager 300 sends control signal to high voltage power distribution Case, controls wireless charging preliminary filling contactor adhesive.After preliminary filling terminates, if pre-charge pressure is at electrokinetic cell voltage In the range of ± 50V, i.e. adhesive wireless charging contactor disconnection of wireless charging preliminary filling contactor, battery management Device 300 sends a signal to instrument 700, instrument display wireless charging indicator lamp, enters wireless charging flow process. If pre-charge pressure is undesirable, then battery manager 300 controls the disconnection of wireless charging preliminary filling contactor, prohibits Only charging.Wireless charging preliminary filling contactor refers to the contactor being arranged within distribution box, and main effect is Prevent from burning out during wireless charging contactor adhesive.Wireless charging contactor refers to be arranged within distribution box, It functions as the switch of high-tension circuit part of onboard wireless charging ECU200.

Fig. 5 is the control flow chart that electric automobile carries out the wireless charging stage.

Step S501, enters wireless charging flow process.

Step S502, battery manager 300 sends battery information and charge power is asked to wireless charging ECU200。

Battery manager 300 sends battery information and current charge requirement power to wireless charging ECU200. Battery information include electrokinetic cell current residual electricity, charging current, charge power the highest single battery voltage, Minimum single battery voltage, the highest single battery temperature, minimum single battery temperature, and electrokinetic cell event Barrier information.

Step S503, wireless charging ECU200 sends battery information to charging station transmitting end equipment.

Step S504, the regulation power output of platform transmitting end equipment.

Step S505, the ruuning situation of wireless charging ECU200 detection wireless charging device.

Specifically, the wireless charging that battery information and power demand are sent on platform by wireless charging ECU200 Electricity equipment 100.Charging platform transmitting end equipment 100 regulates power output, and wireless charging ECU200 receives The energy that transmitting end equipment 100 transmits, charges to vehicle mounted dynamic battery 402.

Step S506, it is judged that electrical network is powered the most abnormal, if it is, perform step S508, otherwise holds Row step S507.

Step S507, it is judged that transmitting end equipment whether fault, if it is, perform step S508, otherwise Perform step S509.

Step S508, stops wireless charging, instrument display wireless charging device fault message.

Step S509, it is judged that wireless charging ECU whether output abnormality, if it is, perform step S508, Otherwise perform step S510.

Step S510, it is judged that wireless charging ECU whether communication failure, if it is, perform step S508, Otherwise perform step S511.

Step S511, battery manager detection vehicle mounted dynamic battery information.

Step S512, it is judged that temperature of powered cell is the most too high, if it is, perform step S514, no Then perform step S513.

Step S513, it is judged that electrokinetic cell voltage is the most too high, if it is, perform step S514, no Then perform step S517.

Step S514, it may be judged whether for electrokinetic cell general alarm, if it is, perform step S515, Otherwise perform step S516.

Step S515, battery manager sends limit power charge information, and wireless charging ECU reduction is currently filled Electrical power.

Step S516, stops wireless charging, instrument display electrokinetic cell fault message.

Specifically, during wireless charging, battery manager 300 detects vehicle mounted dynamic battery information always, The content of detection includes that temperature of powered cell is the most too high, electrokinetic cell voltage is the most too high, charging current is Whether no excessive, battery information collector exists fault.Temperature of powered cell is too high, electrokinetic cell voltage mistake High and charging current is crossed major break down and should a point situation be processed, and can be divided into level fault and secondary failure.When sending out During raw level fault (general alarm), battery manager 300 sends limit power charge information to wireless charging ECU, wireless charging ECU transmission fault message, to transmitting end equipment, carries out limiting power charging.If occurring two Level fault (is seriously reported to the police), or battery information collector fault, then the charging of battery manager disconnection of wireless Loop, wireless charging terminates.

Step S517, it is judged that charging current is the most excessive, if it is, perform step S514, otherwise holds Row step S518.

During wireless charging, battery manager 300 detects battery whether charging complete, when battery charge shape When state SOC is 100%, or user presses wireless charging button, then wireless charging completes.Charging terminates Time, battery manager 300 sends control signal to high-tension distribution box, disconnection of wireless charging contactor.Meanwhile, Battery manager 300 sends charging complete information and retransmits charging completion signal to wireless charging ECU, ECU To transmitting end equipment, transmitting end equipment 100 stops transmitting energy to wireless charging ECU.

Step S518, it is judged that battery information collector whether fault, if it is, perform step S514, Otherwise perform step S519.

During wireless charging, battery manager 300 is all the time by detection power battery charging electric current and adopts Collection electrokinetic cell voltage, calculates power battery charging electricity, and is sent to wireless charging ECU, wireless charging ECU sends charge capacity information to battery manager 300.Battery manager 300 is sending charge capacity letter Number give instrument, in order to display.

Step S519, it is judged that whether user presses wireless charging switch, if it is, perform step S521, Otherwise perform step S520.

Step S520, battery manager 300 judges whether wireless charging completes, if it is, perform step Rapid S521, otherwise performs step S503.During wireless charging, electric automobile is not responding to gear switch, Battery manager 300 sends wireless charging status information and exports to electric machine controller, motor inactivity.Treat nothing After line charging terminates, battery manager 300 sends charging ending message to electric machine controller, it is allowed to electronic vapour Car normally travels.

Additionally, charging equipment needs have monitoring and defencive function in charging process, whole system is occurred Abnormal conditions process.Wireless charging mode also needs to the criterion of clear and definite charging complete, to prevent electricity Battery overcharge on motor-car.

Below with reference to Fig. 6 to Figure 11, the wireless charging for electric automobile according to embodiments of the present invention is described Detecting system.The wireless charging detecting system of the embodiment of the present invention is a kind of feasible with perfect detection function Electric motor car wireless charging scheme, be mainly used in the power electric on pure electric vehicle or mixed power electric car The wireless charging in pond.

As Fig. 6 shows, the wireless charging detecting system 1000 for electric automobile of the embodiment of the present invention includes: Electric energy provides device 100, electric energy to receive device 200 and battery manager 300.

Specifically, electric energy provides device 100 to be connected with charging station, and electric energy receives device 200 and battery management Device 300 is positioned on electric automobile.

Electric energy provides device 100 to be used for utilizing electromagnetic induction to receive device 200 to electric energy and transmits electric energy.Wherein, Electric energy provides device to include: transmitting coil the 104, first current Hall sensor the 151, first sampling resistor 181 and first time inspection coil 171.Wherein, transmitting coil 104 for by alternating current with the form of electromagnetic field It is transmitted into electric energy and receives device 200.First current Hall sensor 151 is connected with transmitting coil 104, uses The current status of the wireless charging major loop of device 100 side is provided in monitoring electric energy.First time inspection coil 171 are connected with the first sampling resistor 181, for the pressure drop of monitoring the first sampling resistor 181, and according to the The pressure drop of one sampling resistor 181 judges that electric energy provides device 100 the most abnormal.It should be noted that electric energy Device 100 is provided to be charging platform transmitting end equipment.

Additionally, electric energy provides device 100 also to include: the first temperature sensor.Wherein, the first TEMP Device is arranged at transmitting coil side, the temperature of transmitting coil during detecting wireless charging.

Electric energy receives device 200 and is positioned on electric automobile, for the electricity that electric energy provides device 100 provide The vehicle mounted dynamic battery 402 of electric automobile can be further transmitted to.Further, electric energy reception device 200 is permissible Self-inspection is carried out in real time, if detection exists fault, then to battery manager after entering wireless charging flow process 300 send fault-signal.In one embodiment of the invention, electric energy receives device 200 can be wireless Charging ECU.

Electric energy receives device 200 and detects herein below: electrical network is powered the most extremely, electric energy provides dress Fault, electric energy receive device 200 whether output abnormality and whether communication failure to put 100.

Receive device using wireless charging ECU as electric energy below to be described.Wireless charging ECU200 is filling Detecting whether wireless charging device exists exception during electricity, it is different that the content of detection includes that electrical network is powered always Often, transmitting end equipment fault, wireless charging ECU output abnormality and wireless charging ECU communication failure etc..Only Have when above-mentioned testing result be normally, fault-free time, then can determine whether that wireless charging device is normal.Wherein electricity Net abnormal electrical power supply refers to that grid power blackout, electrical network output voltage are unstable.Electrical network abnormal electrical power supply and transmitting end equipment event Barrier information is all to be sent to onboard wireless charging ECU200 by platform wireless charging device 100.If existing such as Upper various faults, then wireless charging ECU200 sends charging termination request signal to battery manager 300. Battery manager 300 receives disconnection of wireless charging contactor after this information, stops wireless charging, and sends Charge fault signal is to instrument, instrument display wireless charging device fault.Wireless charging ECU200 output is different It is primarily referred to as occurring extremely to the DC voltage of vehicle mounted dynamic battery 402 output, can be at wireless charging ECU DC output end one voltage hall sensor of configuration, in real time whether monitoring output voltage exists exception.Nothing Line charging ECU judges whether to occur communication failure in the following manner: wireless charging ECU timing is sent out to platform Penetrate end equipment 100 and battery manager 300 sends message, platform transmitting end equipment 100 and battery manager 300 understand to wireless charging ECU200 feedback response after receiving above-mentioned message, if wireless charging ECU200 In preset duration, do not receive feedback response or do not send message, then judging wireless charging ECU200 communication Fault.

In one embodiment of the invention, electric energy reception device 200 includes: receive coil 201, second Current Hall sensor the 152, second sampling resistor 182 and second time inspection coil 172.

Specifically, coil 201 is received for producing induced electricity in the alternating magnetic field that transmitting coil 104 produces Flow to receive the electric energy from transmitting coil 104.Second current Hall sensor 152 and reception coil 201 It is connected, for monitoring the current status that electric energy receives the wireless charging major loop of device 200 side.Second time Inspection coil 172 is connected with the second sampling resistor 182, for the pressure drop of monitoring the second sampling resistor 182, and It is the most abnormal that pressure drop according to the second sampling resistor 182 judges that electric energy receives device 200.

In one embodiment of the invention, electric energy reception device 200 also includes the second temperature sensor.The Two temperature sensors are arranged at reception coil side, for detecting the temperature receiving coil in wireless charging flow process Degree.

Battery manager 300 is receiving after the fault-signal of electric energy reception device 200, disconnection of wireless Charge circuit is to stop wireless charging.

In one embodiment of the invention, battery manager 300 disconnects electronic after receiving fault-signal The wireless charging contactor of automobile is to stop wireless charging, and sends charge fault letter to the instrument of electric automobile Number, the instrument of electric automobile shows fault message after receiving charge fault signal.

In sum, when wireless charging power supply grid normally works, if electrokinetic cell fault-free, battery management Device 300 has charge power to ask, and after onboard wireless charging ECU200 self-inspection is errorless, can forward charge power Solicited message is to platform wireless charging transmitting end equipment 100.If transmitting end equipment 100 is working properly, then return Inspection coil sides can produce induced-current, and sampling resistor can produce pressure drop, can be by detection sampling resistor Pressure drop judges that transmitting end equipment 100 the most normally works.The Cleaning Principle of receiving device sets with transmitting terminal Standby similar.It is configured with current Hall sensor, for real on transmitting end equipment and receiving device major loop Time monitoring charging major loop current conditions.When in loop, electric current is more than setting value, battery manager 300 Controlling to disconnect the wireless charging contactor in distribution box, wireless charging terminates, and instrument can show that charge fault is believed Breath.Transmitting coil 104 and reception coil 201 side are provided with temperature sensor, due to monitoring wireless charging process Middle transmitting coil is wanted and receives the operating temperature of coil.When coil working temperature exceedes setting value, cell tube Reason device controls disconnection of wireless charging contactor, instrument display charging equipment fault.The temperature of transmitting coil 104, The information of electric current and sampling resistor is detected by transmitting end equipment 100, receive the temperature of coil 201, electric current and The information of sampling resistor is detected by wireless charging ECU200.Battery manager 300 is obtained by communication network Fault message, and carry out respective handling.

In one embodiment of the invention, as it is shown in fig. 7, the wireless charging detection of the embodiment of the present invention is System also includes: multiple battery temperature sensor and multiple battery information collector 140.Battery information collector 140 are connected with battery modules by temperature sensor and voltage detecting line, have multiple battery list inside battery modules Body, in order to ensure the cell safety during carrying out wireless charging, can from each batteries monomer just Negative pole end draws a voltage sample line, to reach to detect in real time the purpose of each batteries voltage.Wherein, Each battery temperature sensor two battery cells in the battery modules detecting electric automobile Between the temperature of lug.Wherein, the temperature of each battery cell in two battery cells is lug Temperature.Specifically, the optional temperature taken on battery cell lug is as battery cell temperature, due to battery list Between body, lug is interconnective, so every two batteries choose a lug as monitoring temperature object, The purpose that temperature sensor halves can be realized.I.e. 4 battery cells have only to 2 temperature sensors and examine Survey can realize the temperature detection to each batteries monomer.Battery information collector 140 by cell voltage and After temperature information collection completes, route the message to battery manager 300 by battery subnet, by cell tube Reason device 300 does respective handling.

Each battery information collector 140 and each battery cell in a battery modules of electric automobile It is connected.Further, each battery information collector and each battery list in a battery modules of electric automobile Body is connected.Further, each battery information collector also with each battery temperature temperature in corresponding battery modules Degree sensor is connected with battery manager 300.Each battery information collector 140 is used for gathering battery temperature The battery temperature of the battery cell that sensor detects and the cell voltage collected by voltage detecting line, with And battery temperature and cell voltage are sent to battery manager 300.

In one embodiment of the invention, battery manager 300 received before wireless charging flow process starts To battery temperature and cell voltage, then judge whether following condition meets, if it is, carry out electronic Automobile carries out wireless charging: whether battery temperature is less than predeterminated voltage less than preset temperature value and cell voltage Value.

In another embodiment of the present invention, battery manager 300 receives battery in wireless charging flow process Temperature and cell voltage, then first determine whether that whether the maximum temperature in battery temperature is more than the first preset temperature threshold Value and lasting first preset duration, or whether the ceiling voltage in cell voltage is more than the first predeterminated voltage threshold Value and lasting first preset duration, if it is battery manager 300 receives device 200 to electric energy and sends one As fault message, and detect that the maximum temperature in battery temperature is less than or equal to when battery manager 300 Ceiling voltage in second preset temperature threshold value and cell voltage is less than or equal to the second predetermined voltage threshold, then Battery manager 300 receives device 200 to electric energy and sends trouble shooting information, and charge power is returned to normally Value.

In some embodiments of the invention, the battery manager 300 maximum temperature in judging battery temperature Whether more than the ceiling voltage in the 3rd preset temperature threshold value and lasting second preset duration, or cell voltage Whether more than the 3rd predetermined voltage threshold and lasting second preset duration, if it is battery manager 300 Receive device 200 to electric energy send critical failure information and forbid electric automobile is carried out wireless charging., Showing electrokinetic cell fault in instrument, charging is forbidden.

In one embodiment of the invention, the first duration can be 10 seconds, and the second duration can be 5 seconds.

In order to improve the reliability of system, set battery temperature and the lower limit of voltage, such as battery cell Low temperature may be set to-40 DEG C, and battery cell minimum voltage value is set to 0V.If battery information collector 140 Without gathering signal, then acquiescence sends lower limit.If the battery temperature value that battery information collector 140 sends is -40 DEG C, then it is assumed that temperature sampling line disconnects, if the battery voltage value that battery information collector 140 sends is 0V, then it is assumed that voltage sample line disconnects.If battery manager 300 detects above fault message, then forbid Wireless charging.

In some embodiments of the invention, the wireless charging detecting system of the embodiment of the present invention also includes: leakage Electric transducer.Wherein, electricity leakage sensor is connected with battery manager.During wireless charging, in order to whole Car safety, installs electricity leakage sensor onboard, to monitor whether high tension loop exists short circuit, causes car load to leak Electricity.

As shown in Figure 9 and Figure 10, electricity leakage sensor includes: equivalence insulaion resistance Rx, isolation capacitance C1, First resistance R2, voltage detecting circuit 320, waveform generator 310, comparator 330 and processor 340.

Specifically, equivalence one end of insulaion resistance Rx is connected with the electrokinetic cell 402 of electric automobile, another End ground connection GND.Rx is the electrokinetic cell equivalent insulaion resistance relative to vehicle body, and generally, numerical value is relatively Greatly.One end of isolation capacitance C1 is connected with electrokinetic cell 402 and equivalence insulaion resistance Rx, the other end and electricity Pressure testing circuit 320 is connected with the first resistance R2.Isolation capacitance C1 is for by electrokinetic cell 402 and waveform Generator 310 is isolated.

One end of first resistance R2 is connected with the other end of isolation capacitance C1, the other end of the first resistance R2 Ground connection.One end of voltage detecting circuit 320 is connected with the other end of isolation capacitance C1, for detection first The pressure drop of resistance R2 and the pressure drop of equivalent resistance.Waveform generator 310 is by the second resistance R1 and isolation electricity The other end holding C1 is connected, and is used for generating triangular wave to produce on equivalence insulaion resistance Rx and the first resistance Pressure drop.One end of comparator 330 is connected with the other end of voltage detecting circuit 320, for equivalence being insulated The pressure drop of resistance Rx compares with the first predeterminated voltage fiducial value and the second predeterminated voltage fiducial value.Process Device 340 is connected with the other end of comparator 330, if comparator 330 judges equivalence insulaion resistance Rx's Pressure drop is between the first predeterminated voltage and the second predeterminated voltage, then processor 330 judges general leakage Electricity, if comparator 330 judges that the pressure drop of equivalence insulaion resistance Rx less than the second predeterminated voltage, then processes Device 330 judges serious drain, and electric leakage information is sent to battery manager 300 by processor 340.

Using the pressure drop Ux on the first resistance R2 as monitor value.What waveform generator 310 produced is triangular wave Shape, is used for making to produce pressure drop on the first resistance R2 and equivalence insulaion resistance Rx,

When power battery insulation resistance Rx declines, electrokinetic cell 402 is relative to the insulaion resistance Rx of vehicle body Relatively reduce, then Ux declines.Set a critical voltage value, when Ux reaches this setting value, then leak Electric transducer is reported to the police, and battery manager 300 handles accordingly.Insulating requirements may be set to two grades, the first order For general electric leakage, high-pressure system insulaion resistance critical value is 500 Ω/V, and the second level is serious drain, insulation Resistance critical value is 100 Ω/V.Can according to the two insulate critical resistance, determine the first predeterminated voltage and Second predeterminated voltage, can set the first predeterminated voltage more than the second predeterminated voltage as judgment basis.Equivalence is absolutely Pressure drop on edge resistance Rx, after overvoltage detection circuit 320, is converted into direct current effective voltage, and sets Fixed magnitude of voltage compares, if the magnitude of voltage detected is more than the second predeterminated voltage less than the first predeterminated voltage Time, then processing unit 340 is judged to typically leak electricity, if the voltage detected is less than the second predeterminated voltage, Then processing unit 340 is judged to serious drain.Electric leakage information is sent to battery manager by electricity leakage sensor 300, battery manager 300 carries out earth leakage protective to wireless charging system, when typically leaking electricity, limits power Charging, when serious drain, stops wireless charging.

Figure 11 is the control flow chart of the wireless charging detecting system of the embodiment of the present invention.Figure 11 shows Be by the safety detection flow process of system during wireless charging, including on-vehicle battery temperature detection, voltage detecting, Voltage sample line burn out detection, temperature sampling line burn out detection, high-pressure system insulating monitoring, transmitting end equipment Detection, receiving device detection, current monitoring, wireless charging ECU fault etc..When wireless charging starts and During, as long as breaking down, wireless charging system can process according to fault message.

Step S1101, battery information collector gathers battery information.

Step S1102, battery manager receives battery information.

Step S1103, battery manager judges whether battery cell according to the battery information received Magnitude of voltage is 0V, if it has, then perform step S1104, otherwise performs step S1105.

Step S1104, voltage sample line fault, battery manager 300 forbids wireless charging.

Step S1105, it may be judged whether the temperature that there is battery cell is-40 DEG C, if it is, perform step Rapid S1106, otherwise performs step S1107.

Step S1106, temperature sampling line fault, battery manager 300 forbids wireless charging.

Step S1107, it is judged that whether single battery maximum temperature is more than 70 DEG C, and continues 5 seconds, if it is, Then perform step S1108, otherwise perform step S1109.

Step S1108, battery manager controls disconnection of wireless charging contactor, instrument display high-pressure system leakage Power information.

Step S1109, it is judged that whether single battery ceiling voltage is more than 4.1V, and continues 5 seconds, if it is, Then perform step S1108, otherwise perform step S1110.

Step S1110, it is judged that whether wireless charging high-pressure system insulating resistance value is less than 100 Ω/V, if It is then to perform step S1111, otherwise perform step S1113.

Step S1111, high-pressure system serious drain.

Step S1112, battery manager controls disconnection of wireless charging contactor, instrument display high-pressure system leakage Power information.

Step S1113, it is judged that whether single battery maximum temperature is more than 60 DEG C, and continues 10 seconds, if it is, Then perform step S1114, otherwise perform step S1115.

Step S1114, battery manager sends limit power charge information, and wireless charging ECU receives this letter After breath, reduce charge power.

Step S1115, it is judged that whether single battery ceiling voltage is more than 3.8V, and continues 10 seconds, if It is then to perform step S1114, otherwise perform step S1116.

Step S1116, it is judged that whether wireless charging high-pressure system insulating resistance value is less than 500 Ω/V, if It is then to perform step S1114, otherwise perform step S1117.

Step S1117, vehicle mounted dynamic battery is normal.

Step S1118, it is judged that transmitting end equipment whether fault, if it is, perform step S1119, no Then perform step S1120.

Step S1119, wireless charging stops, and transmitting end equipment sends fault message.

Step S1120, it is judged that receiving device whether fault, if it is, perform step S1121, no Then perform step S1122.

Step S1121, wireless charging stops, and receiving device sends fault message.

Step S1122, it is judged that charging current is the most excessive, if it is, perform step S1123, otherwise Perform step S1124.

Step S1123, wireless charging stops, and receiving device sends fault message.

Step S1124, it is judged that wireless charging ECU whether fault, if it is, perform step S1125, Otherwise perform step S1126.

Step S1125, wireless charging stops, and wireless charging ECU sends fault message.

Step S1126, wireless charging system is normal.

The wireless charging detecting system for electric automobile according to embodiments of the present invention, can improve electric motor car and exist Safety and reliability during charging.The wireless charging detecting system for electric automobile of the embodiment of the present invention Detection include on-vehicle battery temperature detection, voltage detecting, voltage sample line burn out detection, temperature sampling line The detection of burn out detection, high-pressure system insulating monitoring, transmitting end equipment, receiving device detection, current monitoring, The multiple detections such as wireless charging ECU fault, have higher security.Charging start time and during, As long as breaking down, wireless charging system can process according to fault message.Additionally, the employing present invention The wireless charging detecting system of embodiment is easy to the maintenance of wireless charging system, it is simple to find out failure cause, gives After-sales service is provided convenience.The wireless charging detecting system using the embodiment of the present invention can also improve wireless The service life of charging system.

The wireless charging detecting system for electric automobile of the present invention provides a kind of feasible wireless charging Monitoring and safety shield, can real wireless charging system intelligent monitoring.During wireless charging, in real time Gather the important parameter of wireless charging system, and judge whether system exists fault according to systematic parameter, make Respective handling.In case of emergency, platform masters also can press the danger button on charging station console Emergent stopping wireless charging.Present invention greatly reduces the safety issue of the wired charging modes of electric motor car, Make that charging equipment reliability is higher, service life is longer, client can be met in the requirement that electric motor car is charged. And the present invention is by electromagnetic coupled mode, charges the battery, charge efficiency is high, practical.

In flow chart or at this any process described otherwise above or method describe it is understood that For, represent and include one or more performing for the step that realizes specific logical function or process The module of code, fragment or the part of instruction, and the scope of the preferred embodiment of the present invention includes Realization additionally, wherein can not be by order that is shown or that discuss, including according to involved function By basic mode simultaneously or in the opposite order, performing function, these should be by embodiments of the invention Person of ordinary skill in the field is understood.

Represent in flow charts or the logic described otherwise above at this and/or step, for example, it is possible to quilt It is considered the sequencing list of executable instruction for realizing logic function, may be embodied in any calculating In machine computer-readable recording medium, (such as computer based system, include for instruction execution system, device or equipment The system of processor or other can from instruction execution system, device or equipment instruction fetch and perform instruction be System) use, or combine these instruction execution systems, device or equipment and use.For the purpose of this specification, " computer-readable medium " can be any can to comprise, store, communicate, propagate or transmission procedure is for finger Make execution system, device or equipment or combine these instruction execution systems, device or equipment and the device that uses. The more specifically example (non-exhaustive list) of computer-readable medium includes following: have one or more The electrical connection section (electronic installation) of wiring, portable computer diskette box (magnetic device), random access memory (RAM), read-only storage (ROM), erasable edit read-only storage (EPROM or flash memory), Fiber device, and portable optic disk read-only storage (CDROM).It addition, computer-readable medium is even Can be paper or other the suitable media that can print described program thereon, because can be such as by paper Or other media carry out optical scanner, then carry out editing, interpret or carrying out with other suitable methods if desired Process and electronically obtain described program, be then stored in computer storage.

Should be appreciated that each several part of the present invention can realize by hardware, software, firmware or combinations thereof. In the above-described embodiment, multiple steps or method in memory and can be held by suitably instruction with storage Software or firmware that row system performs realize.Such as, if realized with hardware, with another embodiment party As in formula, can realize by any one in following technology well known in the art or their combination: have For data-signal being realized the discrete logic of the logic gates of logic function, there is suitably combination The special IC of logic gates, programmable gate array (PGA), field programmable gate array (FPGA) Deng.

Those skilled in the art be appreciated that realize that above-described embodiment method carries whole or Part steps can be by program and completes to instruct relevant hardware, and described program can be stored in one In computer-readable recording medium, this program upon execution, including one of step or its group of embodiment of the method Close.

Additionally, each functional unit in each embodiment of the present invention can be integrated in a processing module, Can also be that unit is individually physically present, it is also possible to two or more unit are integrated in a module In.Above-mentioned integrated module both can realize to use the form of hardware, it would however also be possible to employ software function module Form realizes.If described integrated module realizes and as independent product using the form of software function module When selling or use, it is also possible to be stored in a computer read/write memory medium.

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

In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", It is concrete that the description of " concrete example " or " some examples " etc. means to combine this embodiment or example describes Feature, structure, material or feature are contained at least one embodiment or the example of the present invention.In this theory In bright book, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example.And, The specific features, structure, material or the feature that describe can be in any one or more embodiments or examples In combine in an appropriate manner.

Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment Being exemplary, it is impossible to be interpreted as limitation of the present invention, those of ordinary skill in the art is without departing from this Above-described embodiment can be changed within the scope of the invention in the case of the principle of invention and objective, repair Change, replace and modification.

Claims (11)

1. the wireless charging detecting system for electric automobile, it is characterised in that including: electric energy carries Receiving device and battery manager for device, electric energy, wherein said electric energy provides device to be connected with charging station, Described electric energy receives device and described battery manager is positioned on described electric automobile,

Described electric energy provides device to be used for utilizing electromagnetic induction to receive device transmission electric energy to described electric energy；

Described electric energy receives device, and described electric energy receives device and is positioned on described electric automobile, for by institute The electric energy that stating electric energy provides device to provide is further transmitted to the vehicle mounted dynamic battery of described electric automobile, and After entering wireless charging flow process, carry out self-inspection in real time, if detection exists fault, then to described cell tube Reason device sends fault-signal；

Described battery manager, for disconnection of wireless charge circuit after receiving described fault-signal to stop Wireless charging,

Wherein, described electric energy provides device to include:

Transmitting coil, for launching alternating current to described electric energy reception device with the form of electromagnetic field；

First current Hall sensor, described first current Hall sensor is connected with described transmitting coil, uses Current status in monitoring charging major loop；

First sampling resistor；

First time inspection coil, described first time inspection coil is connected with described first sampling resistor, is used for monitoring institute State the pressure drop of the first sampling resistor, and judge that described electric energy provides dress according to the pressure drop of described first sampling resistor Put the most abnormal.

2. wireless charging detecting system as claimed in claim 1, it is characterised in that described electric energy receives Herein below is detected by device: electrical network power whether abnormal, described electric energy provide device whether fault, Described electric energy receives device whether output abnormality and whether communication failure.

3. wireless charging detecting system as claimed in claim 1, it is characterised in that described electric energy provides Device also includes: the first temperature sensor, and described first temperature sensor is arranged at described transmitting coil side, For detecting the temperature of transmitting coil in wireless charging flow process.

4. wireless charging detecting system as claimed in claim 1, it is characterised in that described electric energy receives Device includes:

Receive coil, for producing induced-current in the alternating magnetic field that described transmitting coil produces to receive Electric energy from described transmitting coil；

Second current Hall sensor, described second current Hall sensor is connected with described reception coil, uses Current status in monitoring charging major loop；

Second sampling resistor；

Second time inspection coil, described second time inspection coil is connected with described second sampling resistor, is used for monitoring institute State the pressure drop of the second sampling resistor, and judge that described electric energy receives dress according to the pressure drop of described second sampling resistor Put the most abnormal.

5. wireless charging detecting system as claimed in claim 4, it is characterised in that described electric energy receives Device also includes: the second temperature sensor, and described second temperature sensor is arranged at described reception coil side, For detecting the temperature receiving coil in wireless charging flow process.

6. wireless charging detecting system as claimed in claim 1, it is characterised in that described battery management The wireless charging contactor that device disconnects described electric automobile after receiving described fault-signal is wireless to stop Charging, and send charge fault signal to the instrument of described electric automobile, the instrument of described electric automobile is connecing After receiving described charge fault signal, show fault message.

7. wireless charging detecting system as claimed in claim 1, it is characterised in that also include:

Multiple battery temperature sensor, wherein, each described battery temperature sensor is used for detecting described electronic The temperature of the lug between two battery cells in one battery modules of automobile, wherein, said two The temperature of each battery cell in battery cell is the temperature of lug；

Multiple battery information collectors, wherein, each described battery information collector and described electric automobile Each battery cell in one battery modules is connected, and, each battery information collector is also with corresponding Battery manager in described battery modules is connected with each battery temperature sensor, is used for gathering described battery The battery temperature of the described battery cell that temperature sensor detects and the electricity collected by voltage detecting line Cell voltage, and described battery temperature and cell voltage are sent to described battery manager.

8. wireless charging detecting system as claimed in claim 7, it is characterised in that described battery management Device received described battery temperature and cell voltage before wireless charging flow process starts, then judge following condition Whether meet, if it is, carry out described electric automobile is carried out wireless charging: described battery temperature is less than Preset temperature value, and described cell voltage is less than preset voltage value.

9. wireless charging detecting system as claimed in claim 7, it is characterised in that described battery management Device receives described battery temperature and cell voltage in wireless charging flow process, then first determine whether described battery temperature Whether the maximum temperature in degree is more than the first preset temperature threshold value and lasting first preset duration, or described electricity Whether the ceiling voltage in cell voltage is more than the first predetermined voltage threshold and continues described first preset duration, as Fruit is, the most described battery manager receives device to described electric energy and sends generic failure information, and when described Battery manager detects that the maximum temperature in battery temperature is less than or equal to the second preset temperature threshold value and institute State ceiling voltage in cell voltage less than or equal to the second predetermined voltage threshold, the most described battery manager to Described electric energy receives device and sends trouble shooting information.

10. wireless charging detecting system as claimed in claim 8 or 9, it is characterised in that described battery Whether manager maximum temperature in judging described battery temperature is more than the 3rd preset temperature threshold value and continues Ceiling voltage in second preset duration, or described cell voltage whether more than the 3rd predetermined voltage threshold and Continue described second preset duration, send if it is, described battery manager receives device to described electric energy Critical failure information also is forbidden described electric automobile is carried out wireless charging.

11. wireless charging detecting systems as claimed in claim 1, it is characterised in that also include: electric leakage Sensor, described electricity leakage sensor is connected with described battery manager, and wherein, described electricity leakage sensor includes:

Equivalence insulaion resistance, one end of described equivalence insulaion resistance and the electrokinetic cell phase of described electric automobile Even, other end ground connection；

Isolation capacitance, one end of described isolation capacitance and described electrokinetic cell and described equivalence insulaion resistance phase Even；

First resistance, one end of described first resistance is connected with the other end of described isolation capacitance, and described first The other end ground connection of resistance；

Voltage detecting circuit, one end of described voltage detecting circuit is connected with the other end of described isolation capacitance, For detecting pressure drop and the pressure drop of described equivalence insulaion resistance of described first resistance；

Waveform generator, described waveform generator is by the other end phase of the second resistance with described isolation capacitance Even, it is used for generating triangular wave to produce pressure drop on described equivalence insulaion resistance and described first resistance；

Comparator, one end of described comparator is connected with the other end of described voltage detecting circuit, for by institute The pressure drop stating equivalence insulaion resistance is compared with the first predeterminated voltage fiducial value and the second predeterminated voltage fiducial value Relatively；

Processor, described processor is connected with the other end of described comparator, if described comparator judges institute State equivalence insulaion resistance pressure drop between described first predeterminated voltage and described second predeterminated voltage, then institute State processor to judge general electric leakage, if the pressure drop that described comparator judges described equivalence insulaion resistance is little In described second predeterminated voltage, the most described processor judges serious drain, and electric leakage is believed by described processor Breath is sent to described battery manager.