CN107791872B - Vehicle-mounted charger, control method and control device thereof and vehicle - Google Patents
Vehicle-mounted charger, control method and control device thereof and vehicle Download PDFInfo
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- CN107791872B CN107791872B CN201711031400.9A CN201711031400A CN107791872B CN 107791872 B CN107791872 B CN 107791872B CN 201711031400 A CN201711031400 A CN 201711031400A CN 107791872 B CN107791872 B CN 107791872B
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- 238000007599 discharging Methods 0.000 claims abstract description 45
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- 230000006870 function Effects 0.000 abstract description 23
- 238000010586 diagram Methods 0.000 description 13
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a vehicle-mounted charger, a control method and a control device thereof, and a vehicle, wherein the control method of the vehicle-mounted charger comprises the following steps: collecting a connection confirmation signal of a vehicle-mounted charger; identifying a connection mode of the vehicle-mounted charger according to the connection confirmation signal; and carrying out charge and discharge control on the vehicle-mounted charger according to the connection mode of the vehicle-mounted charger. The vehicle-mounted charger can realize charging and discharging in more modes, and the functions are richer.
Description
Technical Field
The invention belongs to the technical field of vehicles, and particularly relates to a control method of a vehicle-mounted charger, a control device of the vehicle-mounted charger, the vehicle-mounted charger and a vehicle.
Background
Generally, when the electric energy of the power battery is about to be exhausted, the alternating current of the power grid can be converted into the direct current by the vehicle-mounted charger to charge the power battery so as to meet the requirement of the driving range of the vehicle, but only the transmission of the energy from the power grid to the power battery can be realized, and the function is single and needs to be perfected.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the invention needs to provide a control method of the vehicle-mounted charger, and the control method of the vehicle-mounted charger can realize the charge and discharge control of the vehicle-mounted charger and enrich the functions of the vehicle-mounted charger.
The invention also provides a control device of the vehicle-mounted charger, the vehicle-mounted charger and a vehicle.
In order to solve the above problem, a control method for a vehicle-mounted charger according to an embodiment of a first aspect of the present invention includes: collecting a connection confirmation signal of a vehicle-mounted charger; identifying a connection mode of the vehicle-mounted charger according to the connection confirmation signal; and controlling charging and discharging of the vehicle-mounted charger according to the connection mode of the vehicle-mounted charger.
According to the control method of the vehicle-mounted charger, the connection mode can be identified according to the collected connection confirmation signal of the vehicle-mounted charger, more charging and discharging control is realized, the functions of the vehicle-mounted charger are enriched, and the application range of the vehicle-mounted charger is wider.
In some embodiments of the present invention, the connection mode of the vehicle-mounted charger includes at least two of a charging connection mode, an external load power supply mode, and an external vehicle-mounted charger power supply mode.
In some embodiments of the present invention, identifying the connection mode of the vehicle-mounted charger according to the connection confirmation signal includes: when the connection confirmation signal meets a first type of preset value, determining that the vehicle-mounted charger is in an external load power supply mode; or when the connection confirmation signal meets a second-class preset value, acquiring a discharge switch trigger signal, and determining that the vehicle-mounted charger is in a charging connection mode or an external vehicle-mounted charger power supply mode according to the discharge switch trigger signal, wherein the vehicle-mounted charger is determined to be in the external vehicle-mounted charger power supply mode when the discharge switch trigger signal is detected.
In some embodiments of the present invention, controlling charging and discharging of the vehicle-mounted charger according to a connection mode of the vehicle-mounted charger includes: in the charging connection mode, collecting a charging control guide signal and vehicle state information of the vehicle-mounted charger, and when the charging control guide signal and the vehicle state signal meet charging conditions, controlling the vehicle-mounted charger to enter a charging mode, and charging a power battery pack of the vehicle by an external charging gun; or, in the external load power supply mode, acquiring the vehicle state information, and controlling the vehicle-mounted charger to convert the output direct current of the power battery pack into alternating current to supply power to an external load when the vehicle state information meets a discharge condition; or, in the power supply mode of the external vehicle-mounted charger, the vehicle state information is collected, the charging control guide signal is controlled to detect, switch and simulate the output control guide signal, and when the whole vehicle state meets the discharging condition, the vehicle-mounted charger is controlled to convert the output direct current of the power battery pack into alternating current to supply power for the external vehicle-mounted charger.
In some embodiments of the invention, the control method further comprises: and under the power supply mode of the external vehicle-mounted charger, controlling the output power level of the vehicle-mounted charger according to the connection confirmation signal.
In some embodiments of the invention, the control method further comprises: and when the vehicle-mounted charger charges and discharges, acquiring the state information of the vehicle-mounted charger to prompt.
In some embodiments of the present invention, a computer-readable storage medium is further provided, on which a computer program is stored, which when executed implements the control method of the onboard charger.
In order to solve the above problem, a control device of a vehicle-mounted charger according to an embodiment of a second aspect of the present invention includes: the acquisition module is used for acquiring a connection confirmation signal of the vehicle-mounted charger; the identification module is used for identifying the connection mode of the vehicle-mounted charger according to the connection confirmation signal; and the control module is used for controlling the charging and discharging of the vehicle-mounted charger according to the connection mode of the vehicle-mounted charger.
The control device of the vehicle-mounted charger provided by the embodiment of the invention can identify the connection mode according to the collected connection confirmation signal of the vehicle-mounted charger, realize more charge and discharge control, enrich the function of the vehicle-mounted charger and enable the vehicle-mounted charger to be wider in application range
In some embodiments of the present invention, the connection mode of the vehicle-mounted charger includes at least two of a charging connection mode, an external load power supply mode, and an external vehicle-mounted charger power supply mode.
In some embodiments of the present invention, the identification module is configured to determine that the vehicle-mounted charger is in an external load power supply mode when the connection confirmation signal satisfies a first type of preset value; or when the connection confirmation signal meets a second-class preset value, acquiring a discharge switch trigger signal, and determining that the vehicle-mounted charger is in a charging connection mode or an external vehicle-mounted charger power supply mode according to the discharge switch trigger signal, wherein the vehicle-mounted charger is determined to be in the external vehicle-mounted charger power supply mode when the discharge switch trigger signal is detected.
In some embodiments of the present invention, the control module is configured to, in the charging connection mode, acquire a charging control guidance signal and vehicle state information of the vehicle-mounted charger, and when the charging control guidance signal and the vehicle state information satisfy a charging condition, control the vehicle-mounted charger to enter a charging mode, and charge a power battery pack of the vehicle with an external charging gun; or, in the external load power supply mode, acquiring the vehicle state information, and controlling the vehicle-mounted charger to convert the output direct current of the power battery pack into alternating current to supply power to an external load when the vehicle state information meets a discharge condition; or, in the power supply mode of the external vehicle-mounted charger, the vehicle state information is collected, the charging control guide signal is controlled to detect, switch and simulate the output control guide signal, and when the whole vehicle state meets the discharging condition, the vehicle-mounted charger is controlled to convert the output direct current of the power battery pack into alternating current to supply power for the external vehicle-mounted charger.
In some embodiments of the invention, the control device further comprises: and the power control module is used for controlling the output power level of the vehicle-mounted charger according to the connection confirmation signal in the power supply mode of the external vehicle-mounted charger.
In some embodiments of the invention, the control device further comprises: the prompt control module is used for acquiring the state information of the vehicle-mounted charger when the vehicle-mounted charger charges and discharges so as to output a prompt control instruction.
Based on the control device of the foregoing aspect embodiment, the vehicle-mounted charger according to the third aspect embodiment of the present invention includes the control device of the vehicle-mounted charger.
According to the vehicle-mounted charger provided by the embodiment of the invention, more functions can be realized by adopting the control device in the embodiment of the aspect, and the application range is wider.
In some embodiments of the present invention, the vehicle-mounted charger further includes a discharge switch, and the discharge switch is connected to the control device and configured to receive a user instruction to generate a discharge switch trigger signal.
In some embodiments of the present invention, the charging and discharging muzzle of the vehicle-mounted charger is a universal charging muzzle that is compatible with at least two of a charging muzzle head of the charger, an external load power supply muzzle head, and an external vehicle-mounted charger muzzle head.
Based on the vehicle-mounted charger of the embodiment of the aspect, the vehicle of the fourth embodiment of the invention comprises: a power battery pack and a vehicle control unit; the vehicle-mounted charger is characterized by comprising a vehicle-mounted charger.
According to the vehicle provided by the embodiment of the invention, by adopting the vehicle-mounted charger in the aspect of the embodiment, more modes of charging and discharging can be realized, and the function of self electric energy application is enriched.
Drawings
Fig. 1 is a flowchart of a control method of a vehicle-mounted charger according to an embodiment of the invention;
FIG. 2 is a schematic connection diagram of an external load power mode of an on-board charger according to an embodiment of the invention;
FIG. 3 is a schematic connection diagram of an external vehicle charger power mode of the vehicle charger according to one embodiment of the invention;
FIG. 4 is a schematic diagram of a charging and discharging process of a vehicle-mounted charger according to an embodiment of the invention;
fig. 5 is a flow chart of a control method of a vehicle-mounted charger according to an embodiment of the invention;
fig. 6 is a block diagram of a control device of the vehicle-mounted charger according to an embodiment of the invention;
fig. 7 is a block diagram of a control device of an onboard charger according to an embodiment of the invention;
FIG. 8 is a block diagram of a vehicle-mounted charger according to an embodiment of the present invention;
FIG. 9 is a block diagram of an onboard charger according to one embodiment of the present invention;
fig. 10 is a block diagram of a vehicle according to an embodiment of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In order to enrich the functions of the vehicle-mounted charger, not only can the energy transmission from a power grid to a power battery be realized, but also the energy of the power battery can be transferred out, and the requirement of the power battery for supplying power to the vehicle or an external load and the like by the vehicle is met.
The following describes a control method of an onboard charger according to an embodiment of the first aspect of the present invention with reference to the drawings.
Fig. 1 is a flowchart of a control method of a vehicle-mounted charger according to an embodiment of the present invention, and as shown in fig. 1, the control method of the vehicle-mounted charger according to the embodiment of the present invention includes:
and S1, collecting a connection confirmation signal of the vehicle-mounted charger.
Specifically, a charging gun head of the vehicle-mounted charger is connected with a charging and discharging gun mouth, and the acquisition unit acquires a Connection signal, such as a resistance value, of the Connection circuit to serve as a Connection Confirmation (CC) signal of the vehicle-mounted charger and transmits the Connection confirmation signal to a control device of the vehicle-mounted charger.
And S2, identifying the connection mode of the vehicle-mounted charger according to the connection confirmation signal.
For example, the control device of the vehicle-mounted charger recognizes according to the detected resistance value corresponding to the connection confirmation signal, and the resistance values acquired corresponding to different connection modes are different.
In some embodiments of the present invention, the connection mode of the vehicle-mounted charger may include at least two of a charging connection mode, an external load power supply mode, and an external vehicle-mounted charger power supply mode, and may also include other conversion modes.
Fig. 2 is a schematic diagram of a control guidance circuit for an external load power supply mode according to an embodiment of the present invention, fig. 3 is a schematic diagram of a control guidance circuit for an external vehicle charger power supply mode according to another embodiment of the present invention, and the schematic diagram of the control guidance circuit for the charging function can be described in the national standard. It can be seen that the resistance values of the CC signals collected by the control device of the vehicle-mounted charger in fig. 2 and 3 are different, so that two connection modes can be identified. In some embodiments of the present invention, the CC signal collected in the charging connection mode may be set to be different from the external load power supply mode and the external vehicle charger power supply mode, so that three different connection modes may be identified according to the CC signal.
In some embodiments of the present invention, the resistance values of the CC signals in the charging connection mode and the external vehicle-mounted charger power supply mode may be consistent, so as to increase the flexibility of the connection gun head in the external vehicle-mounted charger power supply mode, and the connection between the two ends of the connection cable in the external vehicle-mounted charger power supply mode is not different, such as the vehicle interface portions of the charging vehicle (the vehicle of the external vehicle-mounted charger) and the discharging vehicle, the vehicle socket 'and the vehicle socket, and the vehicle plug' in fig. 3 may be consistent.
Specifically, in some embodiments of the present invention, when the connection confirmation signal satisfies a first type of preset value, for example, 2k/1k/470 Ω, it is determined that the vehicle-mounted charger is in an external load power supply mode, where the first type of preset value may be set according to a specific situation; or when the connection confirmation signal meets a second preset value, such as 680/220/100 Ω, a discharge switch trigger signal is acquired, the discharge switch trigger signal may be generated by operating a discharge switch, and the vehicle-mounted charger is determined to be in a charging connection mode or an external vehicle-mounted charger power supply mode according to the discharge switch trigger signal, wherein the vehicle-mounted charger is determined to be in the external vehicle-mounted charger power supply mode when the discharge switch trigger signal is detected.
And S3, controlling charging and discharging of the vehicle-mounted charger according to the connection mode of the vehicle-mounted charger. Therefore, the charging control of the power battery pack of the vehicle can be realized, or the power supply control of the power battery pack to an external load can be realized, or the power battery pack can be realized to supply power to an external vehicle-mounted charger, and the charging and discharging control of the vehicle-mounted charger can be described in relevant documents. Therefore, the vehicle-mounted charger can charge the power battery and also can discharge the power battery to supply power to the outside, and more functions are realized.
In the embodiment of the invention, in the charging connection mode, a charging Control Pilot (CP) signal and vehicle state information of the vehicle-mounted charger are collected, and when the CP signal and the vehicle state signal meet charging conditions, the vehicle-mounted charger is controlled to enter the charging mode, and an external charging gun charges a power battery pack of the vehicle. Or, in the external load power supply mode, acquiring vehicle state information, and controlling a vehicle-mounted charger to convert the output direct current of the power battery pack into alternating current to supply power to an external load when the vehicle state information meets a discharge condition; or, in the power supply mode of the external vehicle-mounted charger, vehicle state information is collected, the charging control guide signal is controlled to detect, switch and output the control guide signal in an analog mode, and when the state of the whole vehicle meets the discharging condition, the vehicle-mounted charger is controlled to convert the input direct current of the power battery pack into alternating current to supply power to the external vehicle-mounted charger.
Specifically, in a charging connection mode, a control device of the vehicle-mounted charger collects a CC signal and a CP signal; in an external load power supply mode, the control device only collects CC signals; under the power supply mode of the external vehicle-mounted charger, the control device not only collects CC signals but also can control CP signal detection switching, simulates and outputs CP signals and performs recheck on the CP signals.
In some embodiments, referring to fig. 4, which is a functional block diagram illustrating the charging and discharging control of the vehicle-mounted charger according to an embodiment of the present invention, the vehicle-mounted charger distinguishes the charging gun head (plug) connected to the charging and discharging gun port (socket) of the vehicle based on the CC signal and the discharging switch trigger signal, i.e. identifies the connection mode of the vehicle-mounted charger, and outputs a slow charging wake-up signal CC _ OUT for waking up the vehicle controller of the vehicle, the vehicle controller collects the state information of the vehicle through a CAN bus of the vehicle, integrates various information and the CC _ OUT signal to judge whether the current vehicle state CAN be charged or driven, realizes the interlocking of driving and charging, prevents the vehicle from starting charging after being started, or the vehicle is started in the charging process, the vehicle state information is transmitted to the control device of the vehicle-mounted charger, and the vehicle-mounted charger executes charging according to the vehicle state and the control command.
In some embodiments of the invention, if the charging gun is connected with the charging gun, the vehicle-mounted charger collects a CP signal and converts the alternating current of a power grid into direct current according to a control command of the vehicle control unit to charge the power battery pack; if the charging and discharging gun port is connected with an external load, the vehicle-mounted charger listens to the vehicle controller to command that the direct current of the power battery pack is converted into alternating current to supply power to the external load; if the charging and discharging muzzle is connected with an external vehicle-mounted charger, namely, the vehicle supplies power to the vehicle, the vehicle-mounted charger simulates and outputs a CP signal, namely, the CP signal is similar to a mobile charging pile, and the direct current of the power battery pack is converted into alternating current to be supplied to another vehicle, so that the vehicle-to-vehicle power supply control is realized. Meanwhile, a battery management system of the vehicle CAN monitor the charging and discharging state of the power battery by acquiring hard line signals and send the charging state to the vehicle control unit through a CAN bus of the vehicle.
Further, in some embodiments of the present invention, in the external vehicle charger power supply mode, the output power level of the vehicle charger is controlled according to the connection confirmation signal. Specifically, the vehicle-mounted charger can send out a CP signal in a simulated mode similar to a mobile charging pile, a vehicle-to-vehicle charging function is achieved, the vehicle with the vehicle-mounted charger can discharge the charging vehicle at different power levels according to CC signals in the charging gun head, such as different detection resistance values, energy is supplemented for the charging vehicle, and the charging vehicle is prevented from being broken down on the road due to insufficient battery electric quantity.
In some embodiments of the present invention, when the vehicle-mounted charger charges or discharges, the state information of the vehicle-mounted charger is obtained to prompt, for example, the fault and the state information of the vehicle-mounted charger are reported to a vehicle instrument through a CAN bus to prompt, so that the charging or discharging condition of the vehicle-mounted charger CAN be known at any time.
Based on the description of the above embodiment, fig. 5 is a flowchart of a control method of a vehicle-mounted charger according to an embodiment of the present invention, and as shown in fig. 5, the control method specifically includes:
and S100, charging connection.
And S101, awakening the vehicle-mounted charger.
S102, obtaining and judging the CC signals to identify the current connection mode.
S103 determines whether the CC signal resistance is 680/220/100 ohms, and if so, the process proceeds to step S111, otherwise, the process proceeds to step S104.
And S104, judging whether the CC signal resistance is 2K/1K/470 ohm, if so, entering the step S105, otherwise, entering the step S109.
And S105, judging whether the whole vehicle instruction or the vehicle state meets the condition, if so, entering step S106, and otherwise, entering step S107.
And S107, waiting until the instruction or the state of the whole vehicle is overtime TBD, wherein the TBD is overtime waiting time, and the specific numerical value needs to be calibrated.
And S108, the vehicle-mounted charger enters a pre-power-off mode.
And S109, judging whether the gun is connected with a non-charging gun, an inversion gun, a half-connection state or a non-connection state to wait for a timeout TBD, if so, entering the step S110, otherwise, returning to the step S103.
And S110, the vehicle-mounted charger enters a pre-power-off mode.
And S111, judging whether the discharge switch trigger input is effective, if so, going to step S112, and if not, going to step S119.
And S112, the vehicle-mounted charger controls to output the CP signal.
S113, judging whether the CP signal is changed from 9V PWM to 6V PWM, if so, entering step S114, otherwise, entering step S118.
And S114, judging whether the whole vehicle instruction or the state meets the condition, if so, entering the step S115, and otherwise, entering the step S116.
And S115, entering a power supply control process of an external vehicle-mounted charger.
And S116, judging whether to wait for a vehicle instruction or a state overtime TBD, if so, entering the step S117, otherwise, returning to the step S114.
S117, enter a pre-power-down mode.
And S118, judging whether to wait for a timeout TBD, if so, entering the step S117, otherwise, returning to the step S113.
And S119, judging whether the CP 9V PWM is normal or not, if so, entering a step S120, and otherwise, entering a step S128.
And S120, judging whether the charging switch is closed, if so, going to step S121, and if not, going to step S127.
S121, judging whether the CP 6V PWM is normal, if so, going to step S122, otherwise, going to step S126.
And S122, judging whether the whole vehicle instruction or the state meets the condition, if so, entering a step S123, and if not, entering a step S125.
And S123, entering a charging control process.
And S124, entering a pre-power-off mode.
And S125, judging whether to wait for the vehicle instruction or the state overtime TBD, if so, entering the step S124, otherwise, returning to the step S122.
S126, judging whether the CP 9V PWM error time-out TBD exists, if so, entering the step S124, otherwise, returning to the step S121.
And S127, judging whether to wait for the finished automobile command timeout TBD, if so, entering the step S124, otherwise, returning to the step S120.
S128, judging whether the CP 9VPWM error time-out TBD, if yes, entering the step S124, otherwise, returning to the step S119.
In summary, the control method of the vehicle-mounted charger according to the embodiment of the invention can identify the connection mode according to the collected CC signal of the vehicle-mounted charger, realize more charging and discharging control, and enrich the functions of the vehicle-mounted charger. The vehicle-mounted charger has a basic charging function and is used for charging the power battery pack, the energy of the power battery pack can be output outwards, a functional external load is used, the charging pile can be simulated to realize the vehicle-to-vehicle charging function with different power levels, the vehicle with the vehicle-mounted charger can charge other vehicles to supplement energy, and the vehicle is prevented from being broken down on the road due to insufficient electric quantity of the battery.
In some embodiments of the present invention, a computer-readable storage medium is also provided, on which a computer program is stored, and the computer program is executed to implement the control method of the vehicle-mounted charger of the above embodiments.
A control device of an on-vehicle charger according to a second aspect of the invention is described below with reference to the accompanying drawings.
Fig. 6 is a block diagram of a control device of a vehicle-mounted charger according to an embodiment of the present invention, and as shown in fig. 6, the control device 100 of the vehicle-mounted charger according to the embodiment of the present invention includes an acquisition module 10, an identification module 20, and a control module 30.
In the embodiment of the present invention, the acquisition module 10 is configured to acquire a Connection Confirmation (CC) signal of the vehicle-mounted charger; the identification module 20 is configured to identify a connection mode of the vehicle-mounted charger according to the connection confirmation signal; the control module 30 is configured to perform charge and discharge control on the vehicle-mounted charger according to a connection mode of the vehicle-mounted charger, so as to implement power utilization or power supply on connected external charge and discharge equipment.
According to the control device 100 of the vehicle-mounted charger, the connection mode of the vehicle-mounted charger is identified according to the connection confirmation information, and charging and discharging control is performed according to the connection mode, so that the vehicle-mounted charger can realize charging and discharging in more modes, can be connected with external power supply equipment such as a power grid for charging, can also be connected with external charging equipment for discharging, and is richer in function.
In some embodiments of the present invention, the connection mode of the vehicle-mounted charger includes at least two of a charging connection mode, an external load power supply mode, and an external vehicle-mounted charger power supply mode. The charging connection module, for example, a vehicle-mounted charger is connected with an external power supply device to charge a power battery of a vehicle, the external load power supply mode may be understood as a vehicle-mounted charger connected with the external power consumption device to supply power to the external power consumption device, and the external vehicle-mounted charger power supply mode may be understood as a vehicle-to-vehicle charging mode, that is, the vehicle-mounted charger according to the embodiment of the present invention may be connected with a vehicle-mounted charger of another vehicle to supply power to the vehicle-mounted charger.
In an embodiment, the identification module 20 is configured to determine that the vehicle-mounted charger is in an external load power supply mode when the connection confirmation signal satisfies a first type of preset value; or when the connection confirmation signal meets the second-class preset value, acquiring a discharge switch trigger signal, and determining that the vehicle-mounted charger is in a charging connection mode or an external vehicle-mounted charger power supply mode according to the discharge switch trigger signal, wherein the vehicle-mounted charger is determined to be in the external vehicle-mounted charger power supply mode when the discharge switch trigger signal is detected.
Specifically, the control module 30 is configured to, in the charging connection mode, acquire a charging control pilot signal and vehicle state information of the vehicle-mounted charger, and when the charging control pilot signal and the vehicle state signal satisfy a charging condition, control the vehicle-mounted charger to enter a charging mode, and charge the power battery pack of the vehicle with an external charging gun; or, in the external load power supply mode, acquiring vehicle state information, and controlling the vehicle-mounted charger to convert the output direct current of the power battery pack into alternating current to supply power to the external load when the vehicle state information meets the discharge condition; or, in the power supply mode of the external vehicle-mounted charger, vehicle state information is collected, the charging control guide signal is controlled to detect, switch and simulate to output the control guide signal, and when the state of the whole vehicle meets the discharging condition, the vehicle-mounted charger is controlled to convert the output direct current of the power battery pack into alternating current to supply power to the external vehicle-mounted charger. Therefore, the charging and discharging control under different connection modes is realized, and the charging function and the energy output can be realized.
In some embodiments of the present invention, as shown in fig. 7, the control device 100 of the vehicle-mounted charger according to the embodiment of the present invention further includes a power control module 40, where the power control module 40 is configured to control an output power level of the vehicle-mounted charger according to the connection confirmation signal in the external vehicle-mounted charger power supply mode, and is more specific.
As an example, as shown in fig. 7, the control device 100 of the vehicle-mounted charger according to the embodiment of the present invention may further include a prompt control module 50, where the prompt control module 50 is configured to obtain the state information of the vehicle-mounted charger when the vehicle-mounted charger is charging and discharging to output a prompt control command, for example, the prompt control command is transmitted to a meter of the vehicle to prompt, so that the charging and discharging state can be intuitively known at any time.
Based on the control device of the vehicle-mounted charger of the embodiment of the aspect, a vehicle-mounted charger proposed according to the embodiment of the third aspect of the invention is described with reference to fig. 8 and 9.
As shown in fig. 8, the vehicle-mounted charger 1000 according to the embodiment of the present invention includes the control device 100 according to the foregoing aspect embodiment, the control device 100 identifies a connection mode of the vehicle-mounted charger 1000, and performs charge and discharge control according to the connection mode, and a specific implementation process refers to the description of the foregoing aspect embodiment and is not described herein again.
By adopting the control device 100 of the embodiment of the aspect, the vehicle-mounted charger 1000 of the embodiment of the invention can realize more functions and has a wider application range.
In the embodiment of the invention, the charging and discharging gun port of the vehicle-mounted charger 1000 is a universal charging gun port compatible with at least two of a charging gun head of the charger, an external load power supply gun head and an external vehicle-mounted charger gun head, so that the universality can be enhanced, and the cost and the space can be saved.
In some embodiments of the present invention, as shown in fig. 9, the vehicle-mounted charger 1000 further includes a discharge switch 200, the discharge switch 200 is connected to the control device 100, and is configured to receive a user instruction to generate a discharge switch trigger signal, so that the control device 100 can further identify a charging connection mode and an external vehicle-mounted charger power supply mode according to the discharge switch trigger signal, and further perform charging and discharging control according to the current connection mode.
Based on the vehicle-mounted charger of the above-described embodiment of the invention, a vehicle according to a fourth aspect embodiment of the invention is described below with reference to fig. 10. As shown in fig. 10, a vehicle 10000 according to an embodiment of the present invention includes a power battery pack 2000, a vehicle controller 3000, and the vehicle-mounted charger 1000 according to the embodiments in the foregoing aspects, where the vehicle-mounted charger 1000 can realize charging and discharging control of the power battery pack 2000 according to a control instruction of the vehicle controller 3000, and a specific control process refers to fig. 4 and a description of a control method, which are not described herein again.
The vehicle 10000 of the embodiment of the invention can realize charging and discharging in more modes and has more abundant functions by adopting the vehicle-mounted charger 1000 of the embodiment of the invention.
It should be noted that in the description of this specification, any process or method description in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and that the scope of the preferred embodiments of the present invention includes additional implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (13)
1. A control method of a vehicle-mounted charger is characterized by comprising the following steps:
collecting a connection confirmation signal of a vehicle-mounted charger;
identifying a connection mode of the vehicle-mounted charger according to the connection confirmation signal, wherein the connection mode of the vehicle-mounted charger comprises a charging connection mode, an external load power supply mode and an external vehicle-mounted charger power supply mode;
the charging and discharging control method comprises the following steps of carrying out charging and discharging control on the vehicle-mounted charger according to the connection mode of the vehicle-mounted charger, wherein the charging and discharging control on the vehicle-mounted charger according to the connection mode of the vehicle-mounted charger comprises the following steps: and under the power supply mode of the external vehicle-mounted charger, controlling the output power level of the vehicle-mounted charger according to the connection confirmation signal, wherein the connection confirmation signal is the detected resistance values of the vehicle interface parts of the discharging vehicle and the charging vehicle, and the discharging vehicle carrying the vehicle-mounted charger discharges at different power levels according to the resistance values of the vehicle interface parts of the charging vehicle.
2. The method for controlling the vehicle-mounted charger according to claim 1, wherein the step of identifying the connection mode of the vehicle-mounted charger according to the connection confirmation signal comprises the steps of:
when the connection confirmation signal meets a first type of preset value, determining that the vehicle-mounted charger is in an external load power supply mode;
or when the connection confirmation signal meets a second-class preset value, acquiring a discharge switch trigger signal, and determining that the vehicle-mounted charger is in a charging connection mode or an external vehicle-mounted charger power supply mode according to the discharge switch trigger signal, wherein the vehicle-mounted charger is determined to be in the external vehicle-mounted charger power supply mode when the discharge switch trigger signal is detected.
3. The control method of the vehicle-mounted charger according to claim 1 or 2, characterized in that the control of charging and discharging of the vehicle-mounted charger according to the connection mode of the vehicle-mounted charger comprises:
in the charging connection mode, collecting a charging control guide signal and vehicle state information of the vehicle-mounted charger, and when the charging control guide signal and the vehicle state signal meet charging conditions, controlling the vehicle-mounted charger to enter a charging connection mode, and charging a power battery pack of the vehicle by an external charging gun;
or, in the external load power supply mode, acquiring the vehicle state information, and controlling the vehicle-mounted charger to convert the output direct current of the power battery pack into alternating current to supply power to an external load when the vehicle state information meets a discharge condition;
or, in the power supply mode of the external vehicle-mounted charger, the vehicle state information is collected, the charging control guide signal is controlled to detect, switch and simulate to output a control guide signal, and when the vehicle state information meets the discharging condition, the vehicle-mounted charger is controlled to convert the output direct current of the power battery pack into alternating current to supply power to the external vehicle-mounted charger.
4. The control method of the vehicle-mounted charger according to claim 3, characterized by further comprising: and when the vehicle-mounted charger charges and discharges, acquiring the state information of the vehicle-mounted charger to prompt.
5. A computer-readable storage medium, on which a computer program is stored, characterized in that said computer program, when executed, implements a control method of an on-board charger according to any one of claims 1 to 4.
6. The utility model provides a control device of on-vehicle machine that charges which characterized in that includes:
the acquisition module is used for acquiring a connection confirmation signal of the vehicle-mounted charger;
the identification module is used for identifying the connection mode of the vehicle-mounted charger according to the connection confirmation signal, wherein the connection mode of the vehicle-mounted charger comprises a charging connection mode, an external load power supply mode and an external vehicle-mounted charger power supply mode;
the control module is used for controlling charging and discharging of the vehicle-mounted charger according to the connection mode of the vehicle-mounted charger;
and the power control module is used for controlling the output power level of the vehicle-mounted charger according to the connection confirmation signal in the power supply mode of the external vehicle-mounted charger, wherein the connection confirmation signal is the detected resistance value of the vehicle interface part of the discharging vehicle and the charging vehicle, and the power control module is specifically used for controlling the vehicle-mounted charger to discharge the charging vehicle at different power levels according to the resistance value of the vehicle interface part.
7. The control device of the vehicle-mounted charger according to claim 6, wherein the identification module is configured to determine that the vehicle-mounted charger is in an external load power supply mode when the connection confirmation signal satisfies a first type of preset value; or when the connection confirmation signal meets a second-class preset value, acquiring a discharge switch trigger signal, and determining that the vehicle-mounted charger is in a charging connection mode or an external vehicle-mounted charger power supply mode according to the discharge switch trigger signal, wherein the vehicle-mounted charger is determined to be in the external vehicle-mounted charger power supply mode when the discharge switch trigger signal is detected.
8. The control device of the vehicle-mounted charger according to claim 6 or 7, characterized in that the control module is used for,
in the charging connection mode, collecting a charging control guide signal and vehicle state information of the vehicle-mounted charger, and when the charging control guide signal and the vehicle state signal meet charging conditions, controlling the vehicle-mounted charger to enter a charging connection mode, and charging a power battery pack of the vehicle by an external charging gun;
or, in the external load power supply mode, acquiring the vehicle state information, and controlling the vehicle-mounted charger to convert the output direct current of the power battery pack into alternating current to supply power to an external load when the vehicle state information meets a discharge condition;
or, in the power supply mode of the external vehicle-mounted charger, the vehicle state information is collected, the charging control guide signal is controlled to detect, switch and simulate to output a control guide signal, and when the vehicle state information meets the discharging condition, the vehicle-mounted charger is controlled to convert the output direct current of the power battery pack into alternating current to supply power to the external vehicle-mounted charger.
9. The control device of the vehicle-mounted charger according to claim 8, characterized by further comprising:
the prompt control module is used for acquiring the state information of the vehicle-mounted charger when the vehicle-mounted charger charges and discharges so as to output a prompt control instruction.
10. A vehicle-mounted charger characterized by comprising a control device of the vehicle-mounted charger according to any one of claims 6 to 9.
11. The vehicle-mounted charger according to claim 10, further comprising a discharge switch, wherein the discharge switch is connected to the control device and configured to receive a user instruction to generate a discharge switch trigger signal.
12. The vehicle-mounted charger according to claim 10, wherein the charging and discharging muzzle of the vehicle-mounted charger is a universal charging muzzle compatible with a charger charging muzzle head, an external load power supply muzzle head, and an external vehicle-mounted charger muzzle head.
13. A vehicle, characterized in that the vehicle comprises:
a power battery pack and a vehicle control unit;
the vehicle-mounted charger according to any one of claims 10 to 12.
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| CN108454440B (en) * | 2018-03-27 | 2021-04-13 | 浙江吉利控股集团有限公司 | Vehicle-to-vehicle charging device and method |
| CN108422887B (en) * | 2018-04-25 | 2023-12-15 | 威马智慧出行科技（上海）有限公司 | Vehicle-mounted alternating-current charging and discharging machine charging and discharging interface, method, charging pile and electronic equipment |
| CN110661309A (en) * | 2018-06-29 | 2020-01-07 | 比亚迪股份有限公司 | External charging method and device for vehicle |
| CN108909490B (en) * | 2018-07-06 | 2021-01-26 | 北京新能源汽车股份有限公司 | Vehicle charging and discharging control method and device, charging and discharging system and vehicle |
| CN109050315A (en) * | 2018-08-22 | 2018-12-21 | 北京长城华冠汽车科技股份有限公司 | A kind of charging method and charging system of electric car |
| CN109515222A (en) * | 2018-10-30 | 2019-03-26 | 北京新能源汽车股份有限公司 | Charging and discharging control method and device and electric automobile |
| CN109532550A (en) * | 2019-01-02 | 2019-03-29 | 上海循道新能源科技有限公司 | A kind of control system of split type alternating-current charging pile |
| CN113212225B (en) * | 2020-01-21 | 2022-10-04 | 北京新能源汽车股份有限公司 | Vehicle charging method and device and charger |
| CN111231699B (en) * | 2020-02-14 | 2022-01-14 | 威马智慧出行科技（上海）有限公司 | Car is device and vehicle of filling each other |
| CN112994159A (en) * | 2021-03-05 | 2021-06-18 | 深圳逸驰云动科技有限公司 | Battery charging method, charging pile and storage medium |
| CN117360310B (en) * | 2023-12-07 | 2024-02-09 | 成都壹为新能源汽车有限公司 | Vehicle charging control method and system using extended-range power battery |
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