CN106809038A - The non-contact type wireless charge control method and system of electric automobile - Google Patents

Abstract

The invention discloses a non-contact wireless charging control method for electric vehicles. The method includes a charging handshake process, wherein the battery management system wakes up the charger for self-inspection, and checks the status of the charger and the battery. If there is an abnormality In the charging process, the battery management system first checks whether the polarity of the electrical connection between the secondary coil device and the battery is consistent, and only when the polarity of the electrical connection is consistent, the charging mode and parameters of the charger are set. 1. Instruct the charger to charge the battery and monitor the charging status in real time. If there is an abnormality, a warning will be triggered; and the power-off process, in which, after the battery management system judges that the battery is fully charged, stop charging the charger and instruct the charger to reset and sleep , while storing the relevant parameters generated by this charging, wherein, if any data feedback between the battery management system and the charger is timed out, a warning will be triggered. The invention also discloses a corresponding control system.

Description

Non-contact wireless charging control method and system for electric vehicles

technical field

The present invention generally relates to a non-contact wireless charging control method and a related system for an electric vehicle, especially a pure electric vehicle.

Background technique

Due to the demands of environmental protection and sustainable social development, new energy vehicles have attracted more and more attention, among which electric vehicles, especially pure electric vehicles, are developing rapidly. An important prerequisite and foundation for the large-scale promotion and application of electric vehicles is the development and construction of their charging facilities.

Traditional charging stations are built in a manner similar to gas stations, equipped with charging piles, and charging piles are equipped with charging guns. The charging station built in this way has certain requirements on the size of the site where it is located, resulting in an excessively high construction cost of the charging station.

In addition, when the electric vehicle needs to be charged, the driver needs to drive the electric vehicle into the charging station, then get off, remove the charging gun from the charging pile, and insert it into the corresponding charging port of the electric vehicle for charging. This process requires the driver to plug and unplug the charging gun, which is cumbersome for some drivers with limited mobility. In addition, repeated plugging and unplugging of the charging cable may also cause physical damage to the charging cable itself or the charging port of the electric vehicle.

Contents of the invention

The purpose of the present invention is to propose a novel non-contact wireless charging control method and system, so that the built charging station can occupy a smaller scale, reduce the construction cost and period, and facilitate the large-scale construction of the charging station; The operator can complete the charging operation of the electric vehicle without getting out of the vehicle and without any manual operation, reducing the physical contact with the electric vehicle as much as possible to prevent corresponding physical damage; the driver does not need any professional operation knowledge, and can be completely controlled by the electric vehicle The computer prompts the operation and provides a better driver experience, all of which can promote the popularization and application of electric vehicles.

According to one aspect of the present invention, a non-contact wireless charging control method for electric vehicles, especially pure electric vehicles, is provided. A primary coil device is buried at the charging bay in the vehicle charging station, and the electric vehicle includes a secondary A coil device, after the electric vehicle enters the charging parking space, the energy conversion from the primary coil device to the secondary coil device is realized through electromagnetic induction, and the connection between the primary coil device and the secondary coil device Corresponding control is realized by exchanging data via a wireless communication device. The electric vehicle also includes a rechargeable battery electrically connected to the secondary coil device and a battery management system connected to the secondary coil device via a CAN bus. The primary coil device and the secondary coil device constitute a charger for non-contact wireless charging of the battery of the electric vehicle,

The methods include:

Charging handshake process, in which the battery management system wakes up the charger for self-inspection, checks the state of the charger and the state of the battery, and triggers a warning if there is an abnormality;

Charging process, in which the battery management system first instructs the charger to check whether the polarity of the electrical connection between the secondary coil device and the battery is consistent, only if the polarity of the electrical connection is consistent , the battery management system sets the charging mode and parameters of the charger, instructs the charger to charge the battery and monitors the charging status in real time, and triggers a warning if there is an abnormality; and

Power-off process, in this process, after the battery management system judges that the battery is fully charged, it stops the charging of the charger and instructs the charger to reset and sleep, and at the same time stores the relevant parameters generated by this charging,

Wherein, if any data feedback between the battery management system and the charger times out, a warning is triggered.

Optionally, during the charging handshake process, the battery management system first sends a wake-up message to the charger, and then the charger wakes up and simultaneously sends a feedback message to the battery management system, the The battery management system checks the state of the charger and the state of the battery after confirming the receipt of the feedback message, and instructs the charger to prepare for charging.

Optionally, during the charging process, the battery management system first sends a message to the charger to set its charging mode and parameters, and after the charger has been set as required, the battery management system The system sends a message to the charger instructing it to charge the battery. During the charging process, based on the charging status monitored in real time, the battery management system can dynamically set the charging mode and parameters of the charger. .

Optionally, during the power-off process, the battery management system first instructs to stop supplying power to the primary coil device, then instructs the reset of the charger, and then instructs the connection between the secondary coil device and the battery to The electrical connection between them is broken.

Optionally, the electrical connection between the battery and the secondary coil device is switched on and off via a relay, and during the charging process, the battery management system controls Whether the relay is turned on, and only when the relay is turned on, the battery management system sets the charging mode and parameters of the charger.

Optionally, during the power-off process, the disconnection of the electrical connection between the secondary coil device and the battery is achieved by the battery management system instructing the relay to be disconnected.

Optionally, the battery includes a power battery and a low-voltage auxiliary battery that provide driving force for the electric vehicle.

Optionally, the wireless communication device is a wifi communication device, a bluetooth communication device or an infrared communication device.

Optionally, after the warning is triggered, the wireless charging is suspended and a manual intervention operation is awaited.

According to another aspect of the present invention, there is also provided a non-contact wireless charging control system for electric vehicles, especially pure electric vehicles, in which a primary coil device is embedded at the charging parking space in the vehicle charging station, and the electric vehicle includes A secondary coil device, after the electric vehicle enters the charging parking space, the primary coil device and the secondary coil device can exchange energy via electromagnetic induction and exchange data via a wireless communication device to achieve corresponding control, so The primary coil device and the secondary coil device constitute a charger for non-contact wireless charging of the electric vehicle, and the electric vehicle also includes a rechargeable battery electrically connected to the secondary coil device and via CAN A battery management system connected to the secondary coil device by bus, the battery management system basically constitutes the non-contact wireless charging control system, and is used to execute the aforementioned method.

Description of drawings

The foregoing and other aspects of the invention will be more fully understood from the following detailed description when taken in conjunction with the following drawings. It should be pointed out that the proportions of the drawings may be different for the purpose of clarity, but this will not affect the understanding of the present invention. In the attached picture:

Fig. 1 schematically shows a block diagram of the principle of non-contact wireless charging according to an embodiment of the present invention;

Fig. 2 schematically shows a flow chart of the charging handshake stage in the non-contact wireless charging control method according to the present invention;

Fig. 3 schematically shows a flow chart of the charging stage in the non-contact wireless charging control method according to the present invention; and

Fig. 4 schematically shows a flow chart of the power-off stage in the non-contact wireless charging control method according to the present invention.

detailed description

In the various figures of the application, structurally identical or functionally similar features are indicated by the same reference numerals.

It should be pointed out that the present invention specifically relates to the non-contact wireless charging control of electric vehicles, especially pure electric vehicles. Therefore, the principles of related specific components and devices are not within the scope of the description of the present invention, but those skilled in the art should clearly use Any components and devices that are technically feasible and conceivable can realize the non-contact wireless charging control of the present invention.

In addition, it should be clear that within the scope of the present invention, a car refers to an electric car, including but not limited to a plug-in hybrid car, a pure electric car, and the like.

Fig. 1 shows a block diagram of the principle of non-contact wireless charging according to an exemplary embodiment of the present invention.

In a fixed location such as a charging station, a primary coil arrangement 20 is buried under the ground, which is electrically connected to a grid 30 . For example, the primary coil device 20 may be provided with a primary coil, a power factor correction unit 21 and an inverter unit 22 . The AC power supplied by the grid 30 is rectified into DC by the power factor correction unit 21 and the power factor is corrected, and then converted into AC by the inverter unit 22 as energy for driving the primary coil.

A secondary coil arrangement 10 is provided on the vehicle. For example, the secondary coil device 10 can be provided with a secondary coil and a rectifying device 11 . For example, the secondary coil device 10 can be arranged on the chassis of the automobile. When the automobile drives to the position directly above the primary coil device 20 (charging parking space), the primary coil and the secondary coil undergo energy conversion through electromagnetic induction, and the secondary Correspondingly, an alternating current is generated in the primary coil. The generated alternating current is rectified by the rectifying device 11 into direct current, and supplied to the battery 40 on the vehicle. Here, the battery 40 may include a vehicle-mounted power battery 41 and a vehicle-mounted low-voltage battery 42 , the former provides driving power for the vehicle, and the latter supplies power for various low-voltage electrical appliances on the vehicle, and may also be called a low-voltage auxiliary battery.

The car is also provided with a battery management system (Battery Management System) BMS, which can be connected to relevant components on the car, such as the secondary coil device 10, via the (Controller Area Network) CAN bus on the car, for its corresponding control.

The primary coil arrangement 20 constitutes the under-vehicle part of the charger, and the secondary coil arrangement 10 constitutes the on-vehicle part of the charger. In addition, wireless communication devices, such as wifi, Bluetooth, and infrared communication devices, are also provided between the under-vehicle part such as the primary coil device 20 and the on-vehicle part such as the secondary coil device 10, for realizing the connection between the on-vehicle part and the under-vehicle part. Controlled data exchange between parts. The above-vehicle part and the under-vehicle part are provided with respective controllers/sensors, through which the operating parameters of relevant components such as coil devices can be acquired or set.

The upper part of the car is a part of the car itself, and the lower part is directly buried in the charging station to charge the incoming car in a non-contact manner, omitting accessory facilities such as charging guns. The car charging station constructed in this way occupies an The ground area can be smaller, which saves the construction cost. This non-contact charging process is realized by the wireless charging control method of the present invention described below.

The wireless charging control method/process according to the present invention basically includes three stages, namely the charging handshake stage as shown in FIG. 2 , the charging stage as shown in FIG. 3 , and the power-off stage as shown in FIG. 4 .

It should be pointed out that the various stages of the wireless charging control method will be respectively described below with reference to accompanying drawings 2 to 4, wherein the charging machine (referring to the part on the vehicle and/or the part under the vehicle) and the battery management system BMS are respectively shown in each stage. strategy used in the phase. Unless otherwise noted, the chargers involved in the following descriptions all refer to the part on the vehicle and/or the part under the vehicle.

Fig. 2 schematically shows a flow chart of the charging handshake stage in the non-contact wireless charging control method according to the present invention.

For example, when the car is driving into the charging parking space under the car where the charger is buried in the charging station, the charging handshake stage is realized at this time, so as to ensure the handshake communication between the part under the car of the charger and the part on the car to complete charging. Timing judgment and charge preparation. This process can be done automatically according to the method of the present invention.

For example, when the car is about to enter the charging bay, the driver can recognize that the car is about to enter the charging bay by triggering a button somewhere on the car or the trip computer automatically transmits a wireless signal to initiate the charging handshake process.

In the charging handshake phase shown in Figure 2, the battery management system BMS sends a wake-up message to the charger. For the on-board part, this can be realized through the CAN bus, and for the off-board part, this can be accomplished through wifi, bluetooth, infrared and other communication devices.

Then, the battery management system BMS detects whether it has received a message fed back by the charger that it has been awakened. If the detection result is "No", the battery management system BMS returns and continues to send a wake-up message to the charger; if the detection times out, a handshake failure warning is triggered; if the detection result is "Yes", continue to the next step.

In the present invention, the handshake failure warning can be realized by a buzzer alarm in the car and/or in the charging parking space, so as to remind the driver and suspend any further operation of wireless charging. However, the handshake failure warning can also be implemented in any other way that can alert the driver, such as vibration of the steering wheel, automatic slow braking, seat movement, etc. After the handshake failure warning is triggered, the driver decides whether to manually intervene or the trip computer can automatically restart the charging handshake process.

Next, the battery management system BMS detects whether the status of the charger (including the on-board part and the under-vehicle part) itself is normal and whether the status of the in-vehicle battery 40 (including the power battery 41 and the on-board low-voltage battery 42) itself is normal. For example, the battery management system BMS can read the current state data of the rectifier 11, the power battery 41 and the vehicle low-voltage battery 42 via the CAN bus and judge whether they are normal, or read the power factor correction unit 21 and/or inverter via wifi, etc. Unit 22's current state data and judge whether it is normal. For example, the judgment method is that if any one of the state data indicates that the state is abnormal, the detection result is determined as "No"; only when all the state data indicate that the state is normal, the detection result is determined as "Yes".

It should be clear to those skilled in the art that any other related devices that need to be used during the charging process can also be similarly detected by the battery management system BMS.

Then, if the detection result is "No", the battery management system BMS triggers a handshake failure warning. If the detection result is "Yes", the battery management system BMS sends a charging preparation message to the charger. Then, the battery management system BMS receives the ready signal sent by the charger. If the receiving signal times out, the battery management system BMS triggers a handshake failure warning. If the received signal is "No", the battery management system BMS returns and continues to send the charging preparation message to the charger. If the received signal is "Yes", then enter the next stage, namely the charging stage as shown in FIG. 3 .

In the charging handshake phase as shown in Figure 2, the charger (on-board part and/or off-board part) can receive the wake-up message sent by the battery management system BMS through its own controller via CAN bus and/or wifi, etc. . If the receiving result is "No", the charger continues to receive relevant messages. If the reception times out, the charger triggers a handshake failure warning. If the receiving result is "Yes", the charger starts self-inspection, and at the same time sends a wake-up feedback message to the battery management system BMS via the CAN bus and/or wifi.

Next, the charger detects whether it receives a charging preparation message sent by the battery management system BMS. If the detection result is "No", the charger continues to receive messages. If the detection times out, the charger triggers a handshake failure warning. If the detection result is "Yes", the charger prepares for charging, and at the same time sends a ready signal to the battery management system BMS, and then enters the next stage, that is, the charging stage shown in Figure 3 .

In the charging handshake stage described above, the battery management system BMS judges whether the predetermined charging timing is satisfied, and wakes up the dormant charger after it is satisfied, and then the charger performs a self-test. The battery management system BMS further judges the battery status after receiving the signal that the charger is in a normal state, and sends a charging preparation message to the charger after all these are ready, and the charger enters the ready state after receiving the charging preparation message from the battery management system BMS , the handshake is complete. By adopting the method of the invention, the handshake success can be ensured more safely before charging, and the reliability of the charging process is improved.

It should be clear that both the charger and the battery management system BMS can execute their respective programs synchronously or asynchronously during the charging handshake phase shown in FIG. 2 or in each phase described below.

After the charge handshake stage shown in Figure 2, if it goes well, enter the charge stage shown in Figure 3. In the charging phase, optionally, the charger first performs a reverse connection check, and feeds back the result of the reverse connection check to the battery management system BMS. In the present invention, the reverse connection check refers to whether the positive and negative output electrodes of the secondary coil device 10 are consistent with the positive and negative input electrodes of the power battery 41 and/or the low voltage battery 42 . Usually, when assembling a complete vehicle, there is no reverse polarity between them, if normal. However, if there is such a reverse polarity assembly after the vehicle is assembled and leaves the factory, it is usually impossible to find out from the appearance of the vehicle. If the battery is charged rashly, it is likely to ignite the battery and cause an accident. Therefore, for the needs of protecting the personal safety of the driver, it is necessary to carry out this reverse connection check in advance at every turn. Furthermore, this reverse connection check can also be carried out with regard to whether the polarity between the primary coil arrangement 20 and the grid 30 is consistent.

Then, the charger detects whether the charging setting message sent by the battery management system BMS is received. If the detection result is "No", the charger continues to receive relevant messages. If the detection result times out, the charger triggers a charging warning. If the detection result is "Yes", the charger sets the charging mode and related parameters of the charger according to the requirements of the charging setting message. At the same time, the charger can feed back the message that has been set as required to the battery management system BMS.

Charging warnings can be implemented in a similar manner to handshake failure warnings, while suspending any further operation of wireless charging, leaving it up to the driver to manually decide how to proceed. In addition, those skilled in the art should be clear that the setting of the charging mode here may include "constant current mode", "constant voltage mode (constant power mode)" and "trickle current mode" for charging the power battery 41 and/or low-voltage battery 42. "set up. The parameters of the charger specifically refer to the current parameters.

Then, the charger receives a signal from the battery management system to make the charger work. If the receiving result is "No", the charger continues to receive. If the reception times out, the charger triggers a charging warning. If the receiving result is "Yes", the charger will perform the charging work and enter the charging state, and feed back a signal to the battery management system BMS that it has entered the charging state. Then, the charger feeds back relevant information messages such as its own state/current/voltage/temperature to the battery management system BMS.

In the charging stage as shown in FIG. 3 , optionally, after receiving the ready signal from the charger, the battery management system BMS sends an instruction to perform the above-mentioned reverse connection check to the charger. Then, the battery management system BMS receives the reverse connection check result fed back by the charger, and if the reverse connection check passes, it sends a power-on message to the charger, such as instructing the under-vehicle part of the charger to be connected to the power supply 30; and/or The relay 50 between the onboard portion of the charger and the battery 40 is commanded to close. Conductive communication between the battery 40 and the secondary coil arrangement 10 is only possible when the relay 50 is closed. If the reverse connection check fails, the battery management system BMS triggers a charging warning.

Then, the battery management system BMS detects whether the relay 50 is closed. If the detection result is "No", the battery management system BMS triggers a charging warning. If the detection result is "Yes", the battery management system BMS sends a charging mode and parameter setting message to the charger via the CAN bus and/or wifi.

Then, the battery management system BMS receives the message signal of whether the charging mode and parameters fed back by the charger have been set as required. If the received signal times out, the battery management system BMS triggers a charging warning. If the received signal is "No", the battery management system BMS returns and continues to send the setting message to the charger. If the received signal is "Yes", the battery management system BMS sends a signal to the charger to start working.

Then, the battery management system BMS receives the signal fed back by the charger whether it is working or not. If the received signal times out, the battery management system BMS triggers a charging warning. If the received signal is "No", the battery management system BMS returns to send a signal to the charger to start working. If the received signal is "Yes", the battery management system BMS will monitor in real time whether the charging state of the charger is normal. For example, this kind of real-time monitoring can be realized by constantly checking its own status/current/voltage/temperature and other related message information provided by the charger. Optionally, if any relevant packet information is abnormal, a warning is triggered.

Then, the battery management system BMS judges whether the charging should end according to preset standards, such as whether the battery 40 is fully charged, whether the temperature of the battery 40 is too high, and so on. If the judgment result is "No", the battery management system BMS will continue to monitor in real time. If the judging result is "Yes", enter into the next stage, that is, the power-off stage as shown in FIG. 4 .

In the charging phase, the battery management system BMS first checks the reverse connection to ensure the safety of related devices and personnel. After all checks are passed, a power-on message is sent to control the closing of the relay, and then the charging mode and parameters are set. During the charging process, the battery management system BMS monitors the relevant status of the battery, vehicle and charger in real time to ensure safe charging.

In the power-off stage shown in Figure 4, the battery management system BMS sends a shutdown message to the charger. Shutdown here especially refers to the shutdown of the under-vehicle part of the charger, that is, disconnecting the power supply of the power supply 30 . Then, after confirming that the charger has been shut down, the battery management system BMS sends a message to the charger to clear its charging mode and restore its parameters to default values.

Then, the battery management system BMS detects whether the charging mode of the charger has been cleared and whether the parameters have been restored. If the detection times out, the battery management system BMS returns to continue detection. If the detection result is "No", the battery management system BMS triggers an end-of-charging warning. If the detection result is "Yes", the battery management system BMS sends a power-off message to the charger. De-energizing here refers in particular to the electrical disconnection between the on-board part of the charger and the battery.

Here, the power-off warning can be implemented in a similar manner to the handshake failure warning, while suspending any further operation of the wireless charging, and it is up to the driver to manually decide how to proceed to the next step.

Then, the battery management system BMS instructs the relay 50 to turn off and confirms whether it is turned off. If the confirmation result is "No", the battery management system BMS triggers an end-of-charging warning. If the confirmation result is "Yes", the battery management system BMS stops sending wake-up messages, and stores the corresponding parameters of this charging for later reference.

In the power-off stage as shown in Figure 4, the charger shuts down after receiving the shutdown message sent by the battery management system BMS via the CAN bus and/or wifi, and feeds back the shutdown result to the battery management system BMS.

Then, the charger receives the message of clearing the charging mode and restoring the parameters sent by the battery management system BMS. If the receiving result is "No", the charger returns to continue receiving. If the reception times out, the charger triggers a charging end warning. If the receiving result is "Yes", the charger clears the charging mode and restores various parameters as required. Optionally, the charger can also store various parameters related to this charging for future reference. Then, the charger enters the dormant state and waits for the next charging to wake up.

In the power-off stage, the battery management system BMS detects charging-related parameters in real time to determine whether the charging is over, and when the conditions are met, the charging ends. At this time, the battery management system BMS turns off the charger, clears the charging mode and restores the parameters, and then controls the power off. After the power-off is completed, the battery management system BMS stops waking up the charger, and at the same time, it can store important parameters related to this charging with the charger for later reference.

By adopting the non-contact wireless charging control method of the present invention, the driver can safely and reliably complete a series of charging steps automatically without getting out of the car. At the same time, the charging start timing is automatically judged by the program, and the driver does not need any professional operation and electrical knowledge. Fully follow the traditional car driving habits, providing the greatest degree of convenience for the driver. Most importantly, this non-contact charging does not require a charging gun, which avoids any possible damage and is safer.

While specific embodiments of the invention have been described in detail, these have been presented for purposes of illustration only and should not be construed as limiting the scope of the invention. Various alternatives, changes and modifications can be devised without departing from the spirit and scope of the invention.

Claims (10)

1. a kind of for electric automobile, the non-contact type wireless charge control of especially pure electric automobile Method, buries a primary coil device at the charging parking stall in vehicle charging station, described electronic Automobile includes a level coil device, after the electric automobile enters the charging parking stall, institute Primary coil device is stated to the energy conversion of the secondary coil device via electromagnetic induction realization, And enter via radio communication device between the primary coil device and the secondary coil device Row data exchange realizes corresponding control, and the electric automobile also includes and secondary coil dress Put the rechargeable battery of electrical connection and be connected with the secondary coil device via CAN Battery management system, the primary coil device and the secondary coil device are constituted to institute Stating the battery of electric automobile carries out the charger of non-contact type wireless charging,

Methods described includes：

Charging handshake procedure, in this process, the battery management system wakes up the charger Self-inspection, and the state of the charger and the state of the battery are checked, if there is different Often, then triggering warning；

Charging process, in this process, the battery management system instructs the charger first Check whether the electrical connection polarity between the secondary coil device and the battery is consistent, only exist In the case that electrical connection polarity is consistent, the battery management system sets the charging of the charger Pattern and parameter, the instruction charger are that the battery charges and real-time monitoring charged state, If there is exception, then triggering warning；And

Lower electric process, in this process, the battery has been judged in the battery management system Stop the charging of the charger after fully charged and instruct the charger to reset and dormancy, while This relevant parameter for producing that charges is stored,

Wherein, if any data feedback between the battery management system and the charger There is time-out, then triggering warning.

2. method according to claim 1, it is characterised in that shaken hands in the charging Cheng Zhong, the battery management system sends to the charger wake up message first, then described Charger is waken up and is sent to the battery management system simultaneously and feeds back message, the cell tube Reason system reexamines the state of the charger and described after the feedback message is acknowledged receipt of The state of battery, and instruct the charger to carry out charging preparation.

3. method according to claim 1 and 2, it is characterised in that charged described Cheng Zhong, the battery management system sends setting its charge mode and ginseng to the charger first Several messages, after the charger sets on request, the battery management system is to institute State charger and send the message for instructing it to be the battery charging, during charging, be based on The charged state of real-time monitoring, the battery management system can dynamically set the charger Charge mode and parameter.

4. according to any described method of claims 1 to 3, it is characterised in that under described In electric process, the battery management system instructs stopping to power the primary coil device first, Then instruct the reset of the charger, then instruct the secondary coil device and the battery it Between electrical connection disconnect.

5. according to any described method of Claims 1-4, it is characterised in that the battery With the break-make of the electrical connection between the secondary coil device realized via relay, in institute State in charging process, the battery management system is controlled after whether inspection electrical connection polarity is consistent Whether the relay is connected, only in the case where the relay is connected, the battery management The charge mode and parameter of charger described in default.

6. method according to claim 5, it is characterised in that in the lower electric process, It is by the battery management that electrical connection between the secondary coil device and the battery disconnects Relay described in system command disconnects what is realized.

7. according to any described method of claim 1 to 6, it is characterised in that the battery Electrokinetic cell and low pressure boosting battery including providing driving force for electric automobile.

8. according to any described method of claim 1 to 7, it is characterised in that described wireless Communicator is wifi communicators, Bluetooth communication device or infrared communications set.

9. according to any described method of claim 1 to 8, it is characterised in that warned in triggering After announcement, wireless charging stops, and waits manual intervention to operate.

10. a kind of non-contact type wireless for electric automobile, especially pure electric automobile charges and controls System processed, buries a primary coil device, the electricity at the charging parking stall in vehicle charging station Electrical automobile includes a level coil device, after the electric automobile enters the charging parking stall, The primary coil device can carry out energy friendship with the secondary coil device via electromagnetic induction Change and carry out data exchange via radio communication device to realize corresponding control, the primary coil Device and the secondary coil device constitute and carry out non-contact type wireless to the electric automobile and fill The charger of electricity, the electric automobile also includes and filling that the secondary coil device is electrically connected Battery and the battery management system being connected with the secondary coil device via CAN, The non-contact type wireless charge control system includes the battery management system, for performing root According to any described method of claim 1 to 9.