CN112659971A - Vehicle charging method and system - Google Patents
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- CN112659971A CN112659971A CN202011614078.4A CN202011614078A CN112659971A CN 112659971 A CN112659971 A CN 112659971A CN 202011614078 A CN202011614078 A CN 202011614078A CN 112659971 A CN112659971 A CN 112659971A
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Abstract
The invention relates to the field of vehicles, in particular to a vehicle charging method and system. Wherein, this system includes: the system comprises a battery management unit, a whole vehicle control unit and a mileage extension unit; the battery management unit is respectively connected with the whole vehicle control unit and the mileage extension unit; the battery management unit is used for sending a charging request signal to the vehicle control unit when detecting a signal connected with a discharging port of an external device; the external equipment further comprises a charging port, and the charging port is used for connecting a vehicle to be charged; the whole vehicle control unit is used for responding to the charging request signal and judging whether the power supply vehicle meets external power supply conditions; and if the power supply vehicle meets the external power supply condition, the whole vehicle control unit is also used for controlling the mileage extension unit to charge the vehicle to be charged through the battery management unit. The system provided by the embodiment of the invention can enable the power supply vehicle to charge other vehicles through the mileage extension unit.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of vehicles, in particular to a vehicle charging method and system.
[ background of the invention ]
With the popularization and the popularity of new energy automobiles, the preservation quantity of the new energy automobiles is more and more. When the new energy automobile is charged, one of the methods is as follows: and arranging a charging station at a designated place, and enabling the new energy automobile to run to the charging station for charging. However, the number of the charging stations is small at present, so that the situation that the battery is not charged when the new energy automobile runs to the charging stations often exists. The other charging method comprises the following steps: and a rescue vehicle appointed by a vehicle manufacturer is used for supplying power to the new energy automobile. But the number of rescue vehicles is relatively rare compared with the holding capacity of new energy vehicles. Therefore, the situation that the vehicle can wait for rescue for a long time when the new energy automobile is out of power often occurs.
[ summary of the invention ]
In order to solve the above problem, embodiments of the present invention provide a vehicle charging method and system, so as to charge a vehicle to be charged. In a first aspect, an embodiment of the present invention provides a charging system applied to a vehicle for supplying power, including: the system comprises a battery management unit, a whole vehicle control unit and a mileage extension unit; the battery management unit is respectively connected with the whole vehicle control unit and the mileage extension unit;
the battery management unit is used for sending a charging request signal to the vehicle control unit when detecting a signal connected with a discharging port of an external device; the external equipment further comprises a charging port, and the charging port is used for connecting a vehicle to be charged;
the whole vehicle control unit is used for responding to the charging request signal and judging whether the power supply vehicle meets external power supply conditions;
and if the power supply vehicle meets the external power supply condition, the whole vehicle control unit is also used for controlling the mileage extension unit to charge the vehicle to be charged through the battery management unit.
In the scheme, the battery management unit identifies the discharge port of the external equipment, and when the connection signal of the discharge port is identified, the electric vehicle can enter an external power supply state. And the vehicle to be charged is supplied with power through the mileage extension unit. When the electric quantity of the vehicle to be charged is exhausted, the vehicle supporting the charging system can be charged.
In one possible implementation manner, the power supply vehicle is provided with a charge-discharge interface; the charging and discharging interface is used for being connected with a charging port or a discharging port of the external equipment;
a first detection point is arranged in the charge-discharge interface and is used for being communicated with a port identification resistor in the external equipment;
the first detection point is further connected with the battery management unit, and when the battery management unit detects that the resistance value, the voltage value or the current value of the first detection point is within a first preset range, the battery management unit determines that the battery management unit is connected with the discharge port of the external device.
In one possible implementation manner, the system further includes: a DC conversion unit and an auxiliary power supply;
the direct current conversion unit is respectively connected with the battery management unit and the auxiliary power supply;
when the battery management unit detects the signal of being connected with external equipment's discharge port, whole car the control unit control battery management unit switch-on high voltage power supply, and control direct current conversion unit converts high voltage power supply into low pressure direct current power supply, and will low pressure direct current power supply passes through auxiliary power source and to external equipment carries out the low pressure power supply, so that external equipment gets into the running state.
In one possible implementation manner, a first control switch is disposed on a connection line between the auxiliary power supply and the external device;
when the battery management unit detects a signal connected with a discharge port of an external device, the battery management unit controls the first control switch to be closed so that the auxiliary power supply supplies power to the external device.
In one possible implementation manner, the mileage extension unit is respectively connected with the battery management unit and a discharge port of the external device;
when the power supply vehicle meets the external power supply condition, the mileage extension unit starts oil-electricity conversion under the control of the battery management unit and provides the converted electric quantity for the discharge port so as to charge the vehicle to be charged at high voltage through the discharge port.
In one possible implementation manner, a second control switch is arranged on a circuit of the mileage extension unit, which is used for being connected with a discharge port of the external device;
when the power supply vehicle meets the external power supply condition, and the battery management unit receives a charging starting control signal sent by the whole vehicle control unit, the battery management unit controls the second control switch to be closed, so that the mileage extension unit provides the electric quantity obtained based on oil-electricity conversion to the vehicle to be charged for high-voltage charging.
In a second aspect, an embodiment of the present invention provides a charging method applied to an electric supply vehicle, including:
when the battery management unit of the power supply vehicle detects a signal connected with a discharge port of the external equipment, a charging request signal is sent to the whole vehicle control unit; the external equipment further comprises a charging port, and the charging port is used for connecting a vehicle to be charged;
responding to the charging request signal, and judging whether the power supply vehicle meets external power supply conditions or not by the whole vehicle control unit;
and if the power supply vehicle meets the external power supply condition, the whole vehicle control unit controls the mileage extension unit to charge the vehicle to be charged through the battery management unit.
In one possible implementation manner, the detecting, by the battery management unit, a signal connected to a discharge port of the external device includes:
when the battery management unit detects that the resistance value, the voltage value or the current value of the first detection point is within a first preset range, determining that a signal connected with a discharge port of the external equipment is detected; the first detection point is located in a charging and discharging interface of the power supply vehicle, and the charging and discharging interface of the power supply vehicle is used for being connected with a charging port or a discharging port of the external equipment.
In one possible implementation manner, when the battery management unit detects a signal connected to a discharge port of an external device, the method further includes:
the battery management unit controls the auxiliary power supply to supply power to the external equipment so as to enable the external equipment to enter an operation state.
In one possible implementation manner, after receiving the charging request signal, the entire vehicle control unit determines whether the power supply vehicle satisfies an external power supply condition, including:
judging whether the power supply vehicle has a fault or not;
judging whether the power supply vehicle and the external equipment are insulated;
and if all the conditions are met, the whole vehicle control unit determines that the power supply vehicle meets the external power supply condition.
It should be understood that the second aspect of the embodiment of the present invention is consistent with the technical solution of the first aspect of the embodiment of the present invention, and beneficial effects achieved by various aspects and corresponding possible implementation manners are similar, and are not described again.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present specification, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a vehicle charging system according to an embodiment of the present invention.
FIG. 2 is a flow chart of a method for charging a vehicle according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a charging system circuit according to an embodiment of the present invention;
FIG. 4 is a flow chart of another method for charging a vehicle according to an embodiment of the present invention;
fig. 5 is a flowchart of another vehicle charging method according to an embodiment of the present invention.
[ detailed description ] embodiments
For better understanding of the technical solutions in the present specification, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only a few embodiments of the present specification, and not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the present specification without any inventive step are within the scope of the present specification.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the specification. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The problem that the new energy automobile is broken down because of nowhere to charge is solved in order to solve new energy automobile charging station and special rescue vehicle quantity few. The embodiment of the invention provides a vehicle charging system, which can enable an electric vehicle to charge a vehicle to be charged through a mileage extension unit of the electric vehicle.
The embodiment of the invention provides a charging scene schematic diagram between vehicles. As shown in fig. 1, the scenario includes: a power supply vehicle 107 and a vehicle to be charged 105. The power supply vehicle 107 is any electric vehicle including the charging system according to the embodiment of the invention. As shown in fig. 1, the power supply vehicle 107 and the vehicle 105 to be charged are connected by the external device 104. Optionally, the external device 104 includes: a charging port and a discharging port. The power supply vehicle 107 and the vehicle to be charged 105 include charge and discharge interfaces. In a specific example, the discharge port of the external device 104 is connected to the charge/discharge interface of the power supply vehicle 107, and the charge port of the external device 104 is connected to the charge/discharge interface of the vehicle to be charged 105. After the charging is started between the power supply vehicle 107 and the vehicle 105 to be charged, the power supply vehicle 107 supplies power to the vehicle 105 to be charged through the external device 104.
As shown in fig. 1, the charging system supported by the electric supply vehicle 107 includes: a battery management unit 101, a vehicle control unit 102, a mileage extension unit 103, and an auxiliary power supply 106. The battery management unit 101 is connected to the vehicle control unit 102, and is configured to perform information interaction with the vehicle control unit 102. The battery management unit 101 is further connected to the mileage extension unit 103, and is configured to control the mileage extension unit 103 to supply power to the outside. The battery management unit 101 is further connected to an auxiliary power supply 106 for controlling the auxiliary power supply 106 to supply power to the external device 104. The mileage extension unit 103 is further connected to the external device 104, and is configured to supply power to the vehicle 105 to be charged through the external device 104, and the auxiliary power supply 106 is further connected to the external device 104, and is configured to supply power to the external device 104.
The embodiment of the invention provides a vehicle charging method corresponding to the vehicle charging system. As shown in fig. 2, the method comprises the following processing steps:
In some embodiments, the battery management unit 101 may set a first detection point at the charge and discharge interface, and the battery management unit 101 may determine the discharge port connection signal by obtaining a resistance value, a voltage value, or a current value of the first detection point. When the discharge port of the external device 104 is connected to the power supply vehicle 107, the battery management unit 101 may acquire the resistance value, the voltage value, or the current value of the first detection point. If the resistance value, the voltage value or the current value of the first detection point is within the first preset range, it may be determined that the charge-discharge interface of the power supply vehicle 107 is connected to the discharge port of the external device 104, and the charge request signal may be transmitted to the vehicle control unit 102.
In step 202, in response to the charging request signal, the entire vehicle control unit 102 determines whether the power supply vehicle 107 satisfies an external power supply condition. When the vehicle control unit 102 receives the charging request signal sent by the battery management unit 101, it needs to determine whether the self condition supports external power supply. For example, whether there is a malfunction of a vehicle component, etc.
In step 203, if the power supply vehicle 107 meets the external power supply condition, the entire vehicle control unit 102 controls the mileage extension unit 103 to charge the vehicle 105 to be charged through the battery management unit 101. The method specifically comprises the following steps: the whole vehicle control unit 102 controls the power supply vehicle 107 to switch on the high voltage power, so that the mileage extension unit 103 starts oil-electricity conversion, and the mileage extension unit 103 supplies the power obtained by the oil-electricity conversion to the vehicle 105 to be charged through the external device 104, so as to charge the vehicle 105 to be charged. Wherein, if the power supply vehicle 107 does not satisfy the external power supply condition, the entire vehicle control unit 102 may feed back the prompt information that the external power supply is not satisfied to the user, so that the user knows.
In some embodiments, after the vehicle control unit 102 determines that the power supply vehicle 107 meets the external power supply condition, the charging requirement information may be presented to the user through the central control screen, so that the user may know and control the charging process. The method comprises the following steps: the whole vehicle control unit 102 displays the charging demand information of the vehicle 105 to be charged on a central control display screen; after the entire vehicle control unit 102 receives the charging start instruction information through the central control display screen, the entire vehicle control unit 102 controls the mileage extension unit 103 to charge the vehicle 105 to be charged through the external device 104. The charging demand information of the vehicle 105 to be charged may be a charging current, a charging power, a charging time, and the like of the vehicle 105 to be charged. The user can control the charging parameters such as the starting, stopping and adjusting the current and voltage in the charging process through the entity keys or the virtual keys arranged on the central control screen. For example, the current electric quantity of the power supply vehicle 107 is 10%, the travelable distance is 70km, the charging current is 35A, the charging power is 20KW, the charging time is 40 minutes, and the like, and the power supply vehicle 107 may display part or all of the information on the center screen according to its own vehicle setting.
In some embodiments, the charging current, the charging voltage, the state of the power supply vehicle and the warning information provided by the power supply vehicle 107 during the charging process can be displayed on the central control screen, so that the user can know the charging parameters of the power supply vehicle during the charging process.
On the basis of the power supply system shown in fig. 1, the embodiment of the invention provides a specific circuit structure of a charging system. As shown in fig. 3, the charging system includes: a battery management unit 310, a vehicle control unit 320, a mileage extension unit 330, a direct current conversion unit 340, and an auxiliary power supply 350. The battery management unit 310 is connected to the vehicle control unit via a line 1, and is connected to the mileage extension unit via a line 2. The mileage extension unit is connected to the external device through lines DC + and DC-, and second control switches (e.g., K1 and K2 in fig. 3) are provided on the lines DC + and DC-. When the second control switch is turned off, the mileage extension unit 330 may discharge the external device based on the electric power converted from the gasoline to the electricity.
The battery management unit 310 is connected to the dc conversion unit 340 through the line 3, and the dc conversion unit 340 is connected to the auxiliary power supply 350. The auxiliary power supply 350 is connected to the external device through lines a + and a-, and first control switches (e.g., K3 and K4 in fig. 3) are provided on the lines a + and a-, and when the first control switches are closed, the auxiliary power supply 350 may supply power to the external device.
The battery management unit 310 is connected with an external device through lines CC1, S + and S-; the circuit CC1 is provided with a first detection point which is used for being communicated with a port identification resistor in the external equipment. The battery management unit 310 performs information interaction with the external device through lines S + and S-.
Based on the circuit shown in fig. 3, an embodiment of the present invention provides a vehicle charging method, as shown in fig. 4, the method includes:
in step 401, when the battery management unit 310 detects that the resistance value, the voltage value, or the current value of the first detection point is within a first preset range, it determines that a signal connected to a discharge port of the external device is detected. When the charge-discharge interface of the power supply vehicle is connected with the discharge port of the external equipment, the first detection point is communicated with the first resistor in the discharge port of the external equipment. At this time, the battery management unit 310 detects that the voltage value or the current value of the first detection point is within a first preset range. Similarly, when the charge-discharge interface of the power supply vehicle is connected with the charge port of the external equipment, the first detection point is communicated with the second resistor in the charge port of the external equipment. At this time, the battery management unit 310 detects that the voltage value or the current value of the first detection point is within a second preset range. Based on such a circuit design, the battery management unit 310 may determine whether the power supply vehicle is connected to the power supply port or the discharge port according to the voltage value or the current value of the first detection point.
In step 402, after determining that the connection signal with the discharging port of the external device is detected, the battery management unit 310 sends a charging request signal to the vehicle control unit 320, and controls the auxiliary power supply 350 to perform low-voltage power supply on the external device. The battery management unit 310 controls the first control switch to be closed, (e.g., K3 and K4 in fig. 3), so that the auxiliary power source 350 can provide low-voltage power to the external device to enable the external device to enter the operating state.
In step 403, after receiving the charging request signal, the entire vehicle control unit 320 determines whether the power supply vehicle meets the external power supply condition, and if so, executes step 404. If not, the entire vehicle control unit 320 may interrupt the charging process and notify the user of the result.
In step 404, the entire vehicle control unit 320 controls the power battery to supply power to the mileage extension unit 330 through the battery management unit 310, so that the mileage extension unit 330 starts the oil-electricity conversion, and the central control screen displays the demand information of the vehicle to be charged.
In step 405, after the entire vehicle control unit 320 receives the instruction information for starting charging through the central control display screen, the entire vehicle control unit 320 controls the mileage extension unit 330 to perform high-voltage charging on the vehicle to be charged through the external device. After receiving the indication information of starting charging, the vehicle control unit 320 sends a control signal to the battery management unit 310, and the battery management unit controls the second control switch to be closed (e.g., K1 and K2 in fig. 3), so that the mileage extension unit 330 can perform high-voltage charging on the vehicle to be charged by using the electric quantity obtained by oil-electricity conversion through the external device.
In some embodiments, the charging power may also be determined according to battery power information of the vehicle to be charged, the power supply capability of the power supply vehicle itself, and the power supply capability of the external device. As shown in fig. 5, the method comprises the following processing steps:
in step 501, the battery management unit 310 obtains battery power information of the vehicle to be charged through the external device, and sends the battery power information to the vehicle control unit 320. The electric quantity information may include a rated voltage, a rated power and a rated current of the vehicle battery to be charged.
In step 502, the vehicle control unit 320 determines the external power supply according to the electric quantity information of the vehicle to be charged, the power supply capability information of the external device, and the power supply capability information of the mileage extension unit 330. There may be a difference between the power supply capacity of the external device and the power supply capacity of the power supply vehicle mileage extension unit 330. Therefore, when determining the external power supply, the upper limit of the power supply capacity of the external device needs to be considered. When the power provided by the mileage extension unit 330 of the powered vehicle is greater than the limit that the external device can withstand, an accident such as damage or fire to the external device may occur. For example, the mileage extension unit of the electric vehicle may provide 70KW of maximum power, the maximum charging power allowed by the external device is 40KW, and the external power supplied by the mileage extension unit may be 40 KW.
In step 503, the entire vehicle control unit 320 controls the mileage extension unit 330 to supply power to the outside to charge the vehicle to be charged. The entire vehicle control unit 330 may control the mileage extension unit to charge the vehicle to be charged with the external power in the form of a rotational speed or a torque.
The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
In the description of the specification, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means 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 specification. 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.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present specification, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.
Any process or method descriptions 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 steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present description 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 embodiments of the present description.
The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
It should be noted that the terminal according to the embodiment of the present invention may include, but is not limited to, a Personal Computer (Personal Computer; hereinafter, referred to as PC), a Personal Digital Assistant (Personal Digital Assistant; hereinafter, referred to as PDA), a wireless handheld device, a Tablet Computer (Tablet Computer), a mobile phone, an MP3 player, an MP4 player, and the like.
In the several embodiments provided in this specification, it should be understood that the disclosed system, apparatus, and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions in actual implementation, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
In addition, functional units in the embodiments of the present description may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a Processor (Processor) to execute some steps of the methods described in the embodiments of the present disclosure. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only a preferred embodiment of the present disclosure, and should not be taken as limiting the present disclosure, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (10)
1. A vehicle charging system, characterized in that the charging system is applied to a power-supplying vehicle, the charging system comprising: the system comprises a battery management unit, a whole vehicle control unit and a mileage extension unit; the battery management unit is respectively connected with the whole vehicle control unit and the mileage extension unit;
the battery management unit is used for sending a charging request signal to the vehicle control unit when detecting a signal connected with a discharging port of an external device; the external equipment further comprises a charging port, and the charging port is used for connecting a vehicle to be charged;
the whole vehicle control unit is used for responding to the charging request signal and judging whether the power supply vehicle meets external power supply conditions;
and if the power supply vehicle meets the external power supply condition, the whole vehicle control unit is also used for controlling the mileage extension unit to charge the vehicle to be charged through the battery management unit.
2. The system of claim 1, wherein the powered vehicle is provided with a charge-discharge interface; the charging and discharging interface is used for being connected with a charging port or a discharging port of the external equipment;
a first detection point is arranged in the charge-discharge interface and is used for being communicated with a port identification resistor in the external equipment;
the first detection point is further connected with the battery management unit, and when the battery management unit detects that the resistance value, the voltage value or the current value of the first detection point is within a first preset range, the battery management unit determines that the battery management unit is connected with the discharge port of the external device.
3. The system of claim 2, further comprising: a DC conversion unit and an auxiliary power supply;
the direct current conversion unit is respectively connected with the battery management unit and the auxiliary power supply;
when the battery management unit detects the signal of being connected with external equipment's discharge port, whole car the control unit control battery management unit switch-on high voltage power supply, and control direct current conversion unit will high voltage power supply converts low pressure direct current power supply into, and will low pressure direct current power supply passes through auxiliary power source and to external equipment carries out the low pressure power supply, so that external equipment gets into the running state.
4. The system according to claim 3, wherein a first control switch is arranged on a connection line between the auxiliary power supply and the external device;
when the battery management unit detects a signal connected with a discharge port of an external device, the battery management unit controls the first control switch to be closed so that the auxiliary power supply supplies power to the external device.
5. The system of claim 4, wherein the mileage extension unit is connected with the battery management unit and a discharge port for connecting with an external device, respectively;
when the power supply vehicle meets the external power supply condition, the mileage extension unit starts oil-electricity conversion under the control of the battery management unit and provides the converted electric quantity for the discharge port so as to charge the vehicle to be charged at high voltage through the discharge port.
6. The system of claim 5, wherein the mileage extension unit is provided with a second control switch on a line for connecting with a discharge port of an external device;
when the power supply vehicle meets the external power supply condition, and the battery management unit receives a charging starting control signal sent by the whole vehicle control unit, the battery management unit controls the second control switch to be closed, so that the mileage extension unit provides the electric quantity obtained based on oil-electricity conversion to the vehicle to be charged for high-voltage charging.
7. A vehicle charging method, characterized in that the method is applied to an electric supply vehicle, and comprises:
when the battery management unit of the power supply vehicle detects a signal connected with a discharge port of the external equipment, a charging request signal is sent to the whole vehicle control unit; the external equipment further comprises a charging port, and the charging port is used for connecting a vehicle to be charged;
responding to the charging request signal, and judging whether the power supply vehicle meets external power supply conditions or not by the whole vehicle control unit;
and if the power supply vehicle meets the external power supply condition, the whole vehicle control unit controls the mileage extension unit to charge the vehicle to be charged through the battery management unit.
8. The method of claim 7, wherein the detecting, by the battery management unit, a signal connected to a discharge port of an external device comprises:
when the battery management unit detects that the resistance value, the voltage value or the current value of the first detection point is within a first preset range, determining that a signal connected with a discharge port of the external equipment is detected; the first detection point is located in a charging and discharging interface of the power supply vehicle, and the charging and discharging interface of the power supply vehicle is used for being connected with a charging port or a discharging port of the external equipment.
9. The method of claim 7, wherein when the battery management unit detects a signal connected to a discharge port of an external device, the method further comprises:
the battery management unit controls the auxiliary power supply to supply power to the external equipment so as to enable the external equipment to enter an operation state.
10. The method of claim 7, wherein after receiving the charging request signal, the entire vehicle control unit determines whether the power supply vehicle meets an external power supply condition, including:
judging whether the power supply vehicle has a fault or not;
judging whether the power supply vehicle and the external equipment are insulated;
and if all the conditions are met, the whole vehicle control unit determines that the power supply vehicle meets the external power supply condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011614078.4A CN112659971A (en) | 2020-12-30 | 2020-12-30 | Vehicle charging method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011614078.4A CN112659971A (en) | 2020-12-30 | 2020-12-30 | Vehicle charging method and system |
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| CN106887889A (en) * | 2017-03-23 | 2017-06-23 | 深圳市沃特玛电池有限公司 | One kind mends electric car charging and discharging protection device |
| CN206900181U (en) * | 2017-05-15 | 2018-01-19 | 西安特锐德智能充电科技有限公司 | A kind of electric energy converting equipment being used between electric automobile |
| CN207782452U (en) * | 2018-02-01 | 2018-08-28 | 中国第一汽车股份有限公司 | DC power transmission system between electric vehicle vehicle |
| CN108454440A (en) * | 2018-03-27 | 2018-08-28 | 浙江吉利控股集团有限公司 | A kind of device and method of vehicle-to-vehicle charging |
| CN110254282A (en) * | 2019-06-26 | 2019-09-20 | 江铃汽车股份有限公司 | Electric car charge control method and device |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106887889A (en) * | 2017-03-23 | 2017-06-23 | 深圳市沃特玛电池有限公司 | One kind mends electric car charging and discharging protection device |
| CN206900181U (en) * | 2017-05-15 | 2018-01-19 | 西安特锐德智能充电科技有限公司 | A kind of electric energy converting equipment being used between electric automobile |
| CN207782452U (en) * | 2018-02-01 | 2018-08-28 | 中国第一汽车股份有限公司 | DC power transmission system between electric vehicle vehicle |
| CN108454440A (en) * | 2018-03-27 | 2018-08-28 | 浙江吉利控股集团有限公司 | A kind of device and method of vehicle-to-vehicle charging |
| CN110254282A (en) * | 2019-06-26 | 2019-09-20 | 江铃汽车股份有限公司 | Electric car charge control method and device |
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