Vehicle control method and vehicle

Abstract

The present invention relates to the technical field of vehicles. Specifically provided are a vehicle control method and a vehicle, which aim to solve the technical problems in the existing vehicle discharge protection control method that a large amount of hardware required to be prepared and a complex circuit structure lead to an excessively large volume of a power-off protection apparatus, and that the poor accuracy of circuit overload detection affects the stability and safety during discharge. Thus, the vehicle in the present invention comprises an on-board charger and a discharge socket. The control method therefor comprises: during external discharge of an on-board charger, acquiring the real-time temperature inside a discharge socket; and on the basis of the real-time temperature, selectively making the on-board charger stop the external discharge. By means of such a configuration, the amount of hardware is reduced, thus simplifying a circuit structure, and circuit overload detection is more accurate, and power is cut off in a more timely manner when a circuit is overloaded, thus effectively improving the stability and safety of a vehicle during external discharge.

Description

Vehicle control method and vehicle This application claims priority to Chinese patent application CN202410155238.5, filed on February 2, 2024, entitled “Vehicle Control Method and Vehicle”. The entire contents of the above Chinese patent application are incorporated into this application by reference. Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular provides a vehicle control method and a vehicle. Background Art

[0002] With the continuous development of battery technology and the rapid popularization of electric vehicles, many unique configurations of electric vehicles are becoming more and more popular among consumers.

[0003] For example, the discharge socket on an electric vehicle can output 220V AC voltage. Compared with traditional fuel vehicles that need to invert and boost the voltage from 12V to 220V, electric vehicles only need to invert and step down the high voltage of the battery pack through a bidirectional on-board charger to obtain the required 220V AC voltage. In addition, the energy loss during the voltage output process is relatively small, which can ensure a higher output power, thereby meeting the user's daily electricity needs and improving convenience in use.

[0004] However, existing vehicle discharge protection control methods require extensive hardware and complex circuit structures, resulting in a bulky power-off protection device. Furthermore, the accuracy of circuit overload detection is poor, affecting the stability and safety of the discharge process.

[0005] Therefore, this field needs a new technical solution to solve the above problems. Summary of the Invention

[0006] The present invention aims to solve the above-mentioned technical problems, namely, the existing vehicle discharge protection control method requires a lot of hardware and a complex circuit structure, resulting in the power-off protection device being too large. At the same time, the accuracy of circuit overload detection is poor, affecting the stability and safety of the discharge process.

[0007] In a first aspect, the present invention provides a method for controlling a vehicle, the vehicle including an on-board charger and a discharge socket. The method comprises: obtaining a real-time temperature inside the discharge socket during external discharge of the on-board charger; and selectively stopping external discharge of the on-board charger based on the real-time temperature.

[0008] In the preferred technical solution of the above-mentioned vehicle control method, the specific steps of "selectively stopping the on-board charger from discharging externally according to the real-time temperature" include: obtaining the real-time current of the branch where the discharge socket is located according to the real-time temperature; and selectively stopping the on-board charger from discharging externally according to the real-time current.

[0009] In the preferred technical solution of the above-mentioned vehicle control method, the specific steps of "selectively stopping the on-board charger from discharging externally according to the real-time current" include: comparing the real-time current with the preset current; and selectively stopping the on-board charger from discharging externally according to the comparison result.

[0010] In the preferred technical solution of the above-mentioned vehicle control method, the step of "selectively stopping the on-board charger from discharging externally based on the comparison result" specifically includes: if the real-time current is not greater than the preset current, the on-board charger is not stopped from discharging externally; if the real-time current is greater than the preset current, the on-board charger is stopped from discharging externally.

[0011] In the preferred technical solution of the control method of the above-mentioned vehicle, the specific steps of "selectively stopping the on-board charger from discharging externally based on the comparison result" include: if the real-time current is not greater than the preset current, not stopping the on-board charger from discharging externally; if the real-time current is greater than the preset current, further obtaining the duration of time during which the real-time current is greater than the preset current; and selectively stopping the on-board charger from discharging externally based on the duration.

[0012] In the preferred technical solution of the above-mentioned vehicle control method, the specific steps of "selectively stopping the on-board charger from discharging externally according to the duration" include: comparing the duration with a preset duration; if the duration is greater than the preset duration, stopping the on-board charger from discharging externally; if the duration is not greater than the preset duration, not stopping the on-board charger from discharging externally.

[0013] In a preferred technical solution of the control method for the above-mentioned vehicle, the control method further includes: during the process of the on-board charger discharging externally, determining whether the discharge socket and the plug are in a loose connection state; if it is determined that the discharge socket and the plug are in a loose connection state, stopping the on-board charger from discharging externally; if it is determined that the discharge socket and the plug are not in a loose connection state, not stopping the on-board charger from discharging externally.

[0014] In a preferred technical solution of the above-mentioned vehicle control method, the control method further includes: during the process of the on-board charger discharging externally, sending a current signal to the display system or mobile terminal of the vehicle to display the real-time current.

[0015] In a preferred technical solution of the above-mentioned vehicle control method, the control method further includes: sending a prompt message to the display system or mobile terminal of the vehicle when the on-board charger stops discharging externally.

[0016] In a second aspect, the present invention provides a vehicle, comprising a controller configured to execute the above-mentioned control method, wherein a printed circuit board is provided in the discharge socket, and a temperature sensor and a micro switch are integrated on the printed circuit board.

[0017] In the preferred technical solution of the above vehicle, a safety door slider and an elastic component are further provided in the socket of the discharge socket. The safety door slider is elastically connected to the housing of the discharge socket through the elastic component to seal the socket after the plug is pulled out.

[0018] In a preferred technical solution of the above vehicle control method, the vehicle further has a discharge switch, and the discharge switch is provided on a control panel of the vehicle.

[0019] When the above technical solution is adopted, the vehicle of the present invention includes an onboard charger and a discharge socket. The control method of the present invention includes: obtaining the real-time temperature inside the discharge socket during the onboard charger's discharge process; and selectively stopping the onboard charger from discharging based on the real-time temperature. This arrangement allows the circuit to be determined to be overloaded by detecting the real-time temperature near the plug spring, thereby protecting the circuit and electrical equipment by de-energizing the onboard charger. This improves the accuracy and timeliness of overload detection. Furthermore, if a vehicle has multiple discharge sockets, the overload condition of each branch of the socket can be effectively detected, thereby improving the safety and reliability of the circuit. Furthermore, this reduces the amount of hardware, simplifies the circuit structure, and achieves miniaturization of the device, facilitating installation within the vehicle and saving space.

[0020] Furthermore, the control method of the present invention further includes: obtaining the real-time current of the branch where the discharge socket is located based on the real-time temperature; and selectively stopping the on-board charger from discharging externally based on the real-time current. This configuration converts the real-time temperature signal into a current signal, which can be used to assess circuit overload. This provides a more intuitive reflection of the current, discharge power, and overload status of each branch, providing an accurate basis for determining whether to power off the on-board charger.

[0021] Furthermore, the control method of the present invention further includes comparing the real-time current with a preset current; and selectively stopping the on-board charger from discharging based on the comparison result. This arrangement, i.e., the preset current setting, accurately assesses whether the real-time current of the circuit is within a safe range, enabling the controller to promptly and accurately implement power-off protection measures if the real-time current exceeds the safe range.

[0022] Furthermore, the control method of the present invention further includes: if the real-time current is not greater than the preset current, the on-board charger does not stop discharging; if the real-time current is greater than the preset current, the on-board charger stops discharging. This configuration not only ensures that the real-time current does not exceed the preset current to maximize output power, ensuring discharge stability and meeting user power needs, but also promptly disconnects the on-board charger when the real-time current exceeds the preset current to protect circuits and electrical equipment, preventing the risk of overload and overheating, and improving power safety.

[0023] Furthermore, the control method of the present invention further includes: if the real-time current is not greater than the preset current, the on-board charger is not stopped from discharging externally; if the real-time current is greater than the preset current, the duration of the real-time current exceeding the preset current is further determined; and based on the duration, the on-board charger is selectively stopped from discharging externally. This configuration ensures that the real-time current maximizes the output power within the range of the preset current, ensures the stability of the discharge, and maximizes the satisfaction of the user's power needs; and after the real-time current exceeds the preset current, the duration of the current overload is further determined. The duration of the current overload is used to determine whether to take power-off protection measures, adding a certain degree of redundancy to the triggering conditions of the power-off protection, avoiding frequent power outages caused by transient high temperatures in the line, and ensuring both discharge safety and discharge stability.

[0024] Furthermore, the control method of the present invention further includes comparing the duration with a preset duration; if the duration exceeds the preset duration, stopping the onboard charger from discharging; if the duration is not greater than the preset duration, not stopping the onboard charger from discharging. This configuration adds the preset duration as a triggering condition for power-off protection, improving the triggering conditions for power-off protection and increasing the circuit's overload resistance. This prevents frequent power outages due to transient high temperatures and other factors, ensuring both discharge safety and discharge stability, and making power-off protection more reasonable and accurate.

[0025] Furthermore, the control method of the present invention further includes: during the on-board charger's discharge process, determining whether the discharge socket and plug are in a loose connection state; if so, stopping the on-board charger from discharging; and if not, continuing to discharge. This configuration effectively prevents abnormal circuit heating and even thermal runaway caused by a loose or loose connection between the socket and plug, further improving discharge safety.

[0026] Furthermore, the control method of the present invention further includes: during the process of the on-board charger discharging externally, sending a current signal to a display system of the vehicle or a mobile terminal to display the real-time current.

[0027] Furthermore, the control method of the present invention also includes sending a prompt message to the vehicle's display system or mobile terminal when the onboard charger stops discharging. This configuration allows the vehicle owner to obtain real-time current values ​​and information such as whether the plug is loose, thereby improving the vehicle owner's awareness of the vehicle's discharge status and allowing the owner to take timely countermeasures.

[0028] In addition, the vehicle further provided by the present invention on the basis of the above-mentioned control method has the technical effects of the above-mentioned control method due to the adoption of the above-mentioned control method. Compared with the vehicle before the improvement, the vehicle of the present invention has a more miniaturized external discharge system, which makes the power-off protection function more accurate and reliable, and improves the safety during the discharge process.

[0029] Furthermore, the discharge socket of the present invention is equipped with a safety door slider and an elastic member within the socket. The safety door slider is elastically connected to the socket housing via the elastic member to seal the socket when the plug is removed. This arrangement effectively prevents children's fingers from accidentally entering the socket and causing electric shock, further improving the safety of the discharge socket. It also effectively prevents the intrusion of foreign objects and extends the service life of the discharge socket.

[0030] Furthermore, the vehicle of the present invention also has a discharge switch, which is located on the vehicle's control panel. This arrangement facilitates operation by adult users and is kept out of the reach of children, preventing the risk of electric shock from misoperation by children. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0032] FIG1 is a flow chart of a vehicle control method according to the present invention;

[0033] FIG2 is a flow chart of a vehicle control method according to a first embodiment of the present invention;

[0034] FIG3 is a flow chart of a second embodiment of a vehicle control method according to the present invention;

[0035] FIG4 is an exploded view of the structure of the discharge socket of the present invention;

[0036] FIG5 is a diagram showing the operating principle of the vehicle control method of the present invention.

[0037] List of reference numerals:

[0038] 1. Controller; 2. Discharge socket; 21. Housing; 22. Jack; 23. Safety door slider; 24. Elastic member; 25. Printed circuit board; 26. Temperature sensor; 27. Micro switch; 3. Display system; 4. Mobile terminal. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0040] It should be noted that, in the description of the present invention, terms such as "upper", "lower", "top", "bottom", "inside", "outside", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0041] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "connected," and "installed" should be understood in a broad sense, and may refer to, for example, a fixed connection, a detachable connection, or an integral connection. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0042] Based on the technical issues pointed out in the background art, existing vehicle discharge protection control methods require a large amount of hardware and a complex circuit structure, resulting in an excessively large power-off protection device. Furthermore, the accuracy of circuit overload detection is poor, affecting the stability and safety of the discharge process. The vehicle of the present invention includes an on-board charger and a discharge socket. Its control method includes: obtaining the real-time temperature near the plug spring of the discharge socket during the on-board charger's external discharge process; and selectively stopping the on-board charger from discharging based on the real-time temperature. This reduces the amount of hardware, simplifies the circuit structure, and provides more accurate circuit overload detection and more timely power-off, effectively improving the safety of the vehicle during external discharge.

[0043] Specifically, as shown in FIG1 , the vehicle of the present invention includes an on-board charger and a discharge socket 2 , and the control method of the present invention includes:

[0044] S100: During the process of the on-board charger discharging, obtain the real-time temperature inside the discharge socket;

[0045] S200: Selectively stop the on-board charger from discharging externally according to the real-time temperature.

[0046] The specific working principle of the on-board discharge system is to invert and step down the high voltage of the battery pack through the on-board charger to obtain a 220V AC voltage, and then discharge it to the outside through the discharge socket 2 to meet the power needs of various electrical equipment. The vehicle of the present invention adds a printed circuit board 25 in the discharge socket 2, and the printed circuit board 25 is integrated with a temperature sensor 26. The temperature sensor 26 is used to collect and monitor the real-time temperature of the live wire and neutral wire connection points, and transmit the detected temperature signal to the vehicle controller 1 in real time. The controller 1 converts the temperature signal into a current signal according to a pre-stored algorithm, and evaluates the circuit overload condition based on the current signal. Finally, based on the evaluation result, it decides whether to stop the on-board charger from discharging to the outside, so as to play a power-off protection role when the circuit reaches overload, thereby improving the use safety during the discharge process.

[0047] For example, a temperature sensor 26 is installed in the discharge socket 2 of the present invention. The temperature sensor 26 is preferably configured as a thermistor. The thermistor is installed near the live and neutral wire plug springs of each discharge socket 2 to detect the temperature of points near the live and neutral wires and convert the temperature signal into a resistance signal. The vehicle controller 1 converts the resistance signal into a corresponding temperature signal according to a preset RT matrix list, and then converts the temperature signal into a corresponding real-time current value according to a preset IT matrix list to monitor and determine whether the corresponding single socket is overloaded. It should be noted that some vehicle models are equipped with multiple discharge sockets 2. This configuration allows each branch where the discharge socket 2 is located to be effectively monitored, solving the problem that a high-power on-board charger cannot detect whether a low-power socket on a single branch is overloaded in the case of multiple branches. It realizes the protection function of a single on-board charger for multiple-branch discharge sockets 2 against overtemperature and overcurrent, thereby effectively replacing the functions of Hall sensors and fuses. It also simplifies the circuit structure, reduces the number of wiring harnesses, and reduces the weight and cost of the discharge system.

[0048] To sum up, by detecting the real-time temperature near the plug springs of the neutral wire and the live wire to determine whether the circuit is overloaded, it is decided whether to cut off the power to the on-board charger to protect the circuit and electrical equipment. On the one hand, the accuracy and timeliness of circuit overload detection are improved, and when the vehicle has multiple discharge sockets 2, the overload condition of the branch where each socket is located can be effectively detected, thereby improving the safety and reliability of the circuit; on the other hand, the amount of hardware is reduced, the circuit structure is simplified, and the miniaturization of the device is achieved, which is conducive to saving space in the vehicle.

[0049] Preferably, as shown in FIG1 and FIG2 , the specific steps of “selectively stopping the on-board charger from discharging externally according to the real-time temperature” include:

[0050] S210: Obtaining the real-time current of the branch where the discharge socket is located according to the real-time temperature;

[0051] S220: Selectively stop the on-board charger from discharging according to the real-time current.

[0052] For example, during the discharge process of the on-board charger, the thermistor first detects the real-time temperature near the plug springs of the neutral wire and the live wire, and synchronously converts the temperature signal into a resistance signal before transmitting it to the controller 1. Then, the controller 1 converts the resistance signal into a corresponding temperature signal according to the preset RT matrix list, and then converts the temperature signal into a corresponding real-time current signal according to the preset IT matrix list. Finally, the real-time current is evaluated to determine whether the corresponding single socket is overloaded, and then decide whether to stop the on-board charger from discharging to the outside.

[0053] Through such a setting, the real-time temperature signal is converted into a current signal, and the current signal is used to evaluate whether the circuit is overloaded, so as to more intuitively reflect the current, discharge power and overload conditions on each branch, providing an accurate basis for whether to cut off the power of the on-board charger.

[0054] Preferably, as shown in FIG2 , the specific steps of “selectively stopping the on-board charger from discharging externally according to the real-time current” include:

[0055] S221: Compare the real-time current with the preset current;

[0056] S222: Selectively stop the onboard charger from discharging according to the comparison result.

[0057] For example, by setting the preset current as a safe current, the real-time current of the circuit can be evaluated to determine whether the real-time current is within a safe range. When the real-time current exceeds the safe current, the circuit will be overloaded, so that the controller 1 can take power-off protection measures in a timely and accurate manner.

[0058] It should be noted that, in practical applications, those skilled in the art can flexibly set the preset current to between 10A and 15A. The present invention preferably sets the preset current to 12A.

[0059] As shown in FIG2 , in a preferred embodiment of the present invention, the step of “selectively stopping the on-board charger from discharging externally according to the comparison result” specifically includes:

[0060] S223: If the real-time current is not greater than the preset current, the on-board charger is not stopped from discharging externally;

[0061] S224: If the real-time current is greater than the preset current, the on-board charger stops discharging.

[0062] Specifically, if the real-time current is not greater than the preset current, it means that the current in the circuit has not reached the safe current and is still within the safe range, and the circuit will not be overloaded. Therefore, the controller 1 will control the on-board charger to maintain a normal discharge state; if the real-time current is greater than the preset current, it means that the current in the circuit has reached or exceeded the safe range, and there is a risk of circuit overload. The controller 1 will control the on-board charger to immediately enter the power-off protection state and stop discharging to the outside.

[0063] Through such a setting, it is possible to maximize the output power within the range of real-time current not exceeding the preset current, maximize the stability of discharge, and meet the user's power needs; and it is possible to promptly cut off the power to the on-board charger when the real-time current exceeds the preset current to protect the circuit and electrical equipment, prevent the risk of overload and overheating, and improve power safety.

[0064] As shown in FIG3 , in another preferred embodiment of the present invention, the step of “selectively stopping the on-board charger from discharging externally according to the comparison result” specifically includes:

[0065] S223: If the real-time current is not greater than the preset current, the on-board charger is not stopped from discharging externally;

[0066] S224: If the real-time current is greater than the preset current, further obtaining a duration during which the real-time current is greater than the preset current;

[0067] S225: Selectively stop the on-board charger from discharging according to the duration.

[0068] Specifically, if the real-time current is not greater than the preset current, it means that the current in the circuit has not reached the safe current, and the circuit will not be overloaded. The controller 1 will keep the on-board charger in a normal discharge state; if the real-time current is greater than the preset current, it means that the current in the circuit has reached or exceeded the safe current, and there is a risk of circuit overload. In this case, the controller 1 will further obtain the duration of time that the real-time current is greater than the preset current, and ultimately decide whether to control the on-board charger to immediately enter the power-off protection state and stop discharging to the outside based on the duration.

[0069] This setting improves the triggering conditions of power-off protection and increases the circuit's extreme redundancy against overload, so that the control method of the present invention can not only ensure that the real-time current maximizes the output power within the range of no more than the preset current, so as to maximize the satisfaction of the user's electricity demand and ensure the stability of discharge, but also obtain the duration of the real-time current exceeding the preset current (safety current) when the real-time current exceeds the preset current. Finally, it is determined whether the on-board charger needs to stop discharging based on the duration of the real-time current exceeding the preset current. The power-off protection will only be triggered when the duration reaches a certain preset duration, avoiding frequent power outages of the on-board charger caused by instantaneous high temperature and high current caused by circuit instability, ensuring discharge safety while also ensuring discharge stability.

[0070] Preferably, as shown in FIG3 , the specific steps of “selectively stopping the on-board charger from discharging externally according to the duration” include:

[0071] S226: Compare the duration with the preset duration;

[0072] S227: If the duration is longer than the preset duration, the onboard charger stops discharging.

[0073] S228: If the duration is not greater than the preset duration, the on-board charger does not stop discharging.

[0074] For example, the setting of the preset duration can reflect the circuit's ability to resist overload. If the duration is no longer than the preset duration, it means that the circuit can withstand the impact of short-term high current and circuit overload will not occur. At this time, the controller 1 does not need to power off the circuit for protection. If the duration is longer than the preset duration, it means that the duration of the high current has exceeded the circuit's ability to resist overload, which will cause thermal runaway of the circuit and damage the discharge system and electrical equipment.

[0075] Therefore, the control method of the present invention adds a preset time length as a trigger condition for power-off protection, improves the trigger condition for power-off protection, increases the circuit's extreme redundancy against overload, prevents the circuit from frequent power outages due to instantaneous high temperature and other reasons, ensures discharge safety while ensuring discharge stability, and makes power-off protection more reasonable and accurate.

[0076] It should be noted that, in practical applications, those skilled in the art can flexibly set the preset time length. The present invention preferably sets the preset time length to 3 seconds.

[0077] Preferably, the control method of the present invention further includes:

[0078] During the process of the on-board charger discharging externally, it is determined whether the discharge socket 2 and the plug are in a virtual connection state;

[0079] If it is determined that the discharge socket 2 and the plug are in a loose connection state, the on-board charger stops discharging externally;

[0080] If it is determined that the discharge socket 2 and the plug are not in a loose connection state, the on-board charger is not stopped from discharging to the outside.

[0081] Since the vehicle-mounted discharge socket 2 is used most of the time during driving, it needs to withstand severe bumps and vibrations. Ordinary household sockets cannot adapt to the unstable usage environment of the vehicle. As a result, the discharge socket 2 and the plug are very likely to become loose or improperly inserted in an environment of continuous bumps and vibrations. Especially during high-power and high-voltage discharge, if the plug is improperly inserted, it is very likely to cause abnormal temperature rise or even thermal runaway, with unimaginable consequences. The present invention provides a reasonable and effective solution to such usage scenarios and potential safety hazards.

[0082] For example, a micro switch 27 and a low-level circuit electrically connected to the micro switch 27 and the controller 1 are also integrated on the printed circuit board 25. When the plug of the electrical device is plugged into the jack 22 of the discharge socket 2, inward pressure is applied to the micro switch 27. When the micro switch 27 is subjected to the pressure of the plug, the low-level circuit can send an electrical signal to the controller 1. When the plug is loose or poorly connected to the discharge socket 2, that is, the plug is not plugged into the jack 22, the low-level circuit will send a floating signal to the controller 1.

[0083] Therefore, when judging whether the discharge socket 2 and the plug are loosely connected, it is first judged whether the electrical signal received by the controller 1 is a low-level signal or a floating signal. If the electrical signal is a low-level signal, it is judged that the socket and the plug are in a tightly plugged state; if the electrical signal is a floating signal, it is judged that the socket and the plug are in a loose connection state.

[0084] This arrangement can effectively prevent abnormal heating of the circuit or even thermal runaway when the socket and the plug are in a loose connection state, thereby further improving discharge safety.

[0085] Preferably, the control method of the present invention further includes:

[0086] During the “process of the on-board charger discharging externally”, the display system 3 of the vehicle or the mobile terminal 4 is controlled to display the real-time current in real time.

[0087] By having the vehicle's display system 3 or mobile terminal 4 display the real-time current in real time, the vehicle owner can obtain information such as the real-time current and the connection status of the plug and the socket 22 in a timely manner, thereby improving the vehicle owner's ability to perceive the vehicle's discharge status and risks, so that the vehicle owner can take timely countermeasures when danger occurs.

[0088] Preferably, the control method of the present invention further includes:

[0089] During the process of the on-board charger discharging, a current signal is sent to the display system 3 of the vehicle or the mobile terminal 4 to display the real-time current.

[0090] When the on-board charger stops discharging, the vehicle's display system 3 or mobile terminal 4 may issue a warning, thereby further alerting the user.

[0091] Preferably, the control method of the present invention further includes:

[0092] When the on-board charger stops discharging, a prompt message is sent to the display system 3 of the vehicle or the mobile terminal 4 .

[0093] Through the above settings, the car owner can obtain real-time current values ​​and information such as whether the plug has a loose connection in a timely manner, which improves the car owner's ability to perceive the discharge status of the vehicle so that the car owner can take timely countermeasures.

[0094] In addition, the vehicle further provided by the present invention on the basis of the above-mentioned control method has the technical effects of the above-mentioned control method due to the adoption of the above-mentioned control method. Compared with the vehicle before the improvement, the vehicle of the present invention has a more miniaturized external discharge system, which makes the power-off protection function more accurate and reliable, and improves the safety during the discharge process.

[0095] Preferably, as shown in FIG4 , a safety door slider 23 and an elastic member 24 are further provided in the socket 22 of the discharge socket 2 of the present invention. The safety door slider 23 is elastically connected to the housing 21 of the discharge socket 2 through the elastic member 24 to seal the socket 22 after the plug is pulled out.

[0096] For example, a safety door slider 23 is provided in each socket 22, and the safety door slider 23 is elastically connected to the panel of the discharge socket 2. When the plug is inserted into the socket 22, the safety door slider 23 will be pushed open. When the plug is pulled out, the safety door slider 23 will rebound and block the socket 22.

[0097] This can effectively prevent children's fingers from accidentally entering the socket 22 and causing electric shock, further improving the safety of the discharge socket 2. It can also effectively prevent the intrusion of foreign objects and extend the service life of the discharge socket 2.

[0098] Specifically, as shown in Figure 4, when the plug is inserted into the socket, it will first contact the safety door slider 23. The safety door slider 23 can prevent children in the car from using foreign objects such as wire to reach in and avoid accidental electric shock. When the safety door slider 23 slides out of the channel, the plug can be inserted into the plug spring in the jack 22, and at the same time it will press against the micro switch 27. At this moment, the micro switch 27 is actuated to connect the low-level circuit and transmit the signal to the controller 1; conversely, when the plug is loosened or pulled out, the pressure on the micro switch 27 is released, the micro switch 27 disconnects the low-level circuit, and transmits a suspended signal to the vehicle domain controller.

[0099] In addition, unlike the traditional discharge socket 2 which sets the switch on the socket panel, the discharge switch of the present invention uses a virtual button on the vehicle's central control screen. On the one hand, it is convenient for adult users to operate, and on the other hand, it is away from the range of children's activities to prevent children from misoperating and causing the risk of electric shock.

[0100] In summary, as shown in Figure 5, the control principle of the present invention involves controller 1 collecting feedback signals from microswitch 27 and two temperature sensors 26, converting them into CAN bus signals and transmitting them to the onboard charger. This eliminates the need for an analog input interface on the onboard charger control terminal. The high-voltage connector interlock signal of the onboard discharge socket 2 is serially connected to microswitch 27, eliminating the need for a separate detection and control unit for the socket. Similar signals are combined and forwarded to external control, reducing hardware costs. Furthermore, when multiple discharge sockets 2 are installed on a vehicle, redundant configurations are avoided, significantly reducing the overall system cost.

[0101] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A vehicle control method, characterized in that: The vehicle includes an on-board charger and a discharge socket, and the control method includes: During the process of the on-board charger discharging, obtaining the real-time temperature inside the discharge socket; The on-board charger is selectively stopped from discharging externally according to the real-time temperature.

2. The control method according to claim 1, characterized in that: The specific steps of “selectively stopping the on-board charger from discharging externally according to the real-time temperature” include: According to the real-time temperature, obtaining the real-time current of the branch where the discharge socket is located; The on-board charger is selectively stopped from discharging externally according to the real-time current.

3. The control method according to claim 2, characterized in that: The specific steps of “selectively stopping the on-board charger from discharging externally according to the real-time current” include: Comparing the real-time current with a preset current; According to the comparison result, the on-board charger is selectively stopped from discharging externally.

4. The control method according to claim 3, characterized in that: The step of “selectively stopping the on-board charger from discharging externally according to the comparison result” specifically includes: If the real-time current is not greater than the preset current, the on-board charger is not stopped from discharging externally; If the real-time current is greater than the preset current, the on-board charger stops discharging to the outside.

5. The control method according to claim 3, characterized in that: The specific steps of “selectively stopping the on-board charger from discharging externally according to the comparison result” include: If the real-time current is not greater than the preset current, the on-board charger is not stopped from discharging externally; If the real-time current is greater than the preset current, further obtaining a duration during which the real-time current is greater than the preset current; The on-board charger is selectively stopped from discharging according to the duration.

6. The control method according to claim 5, characterized in that: The specific steps of “selectively stopping the on-board charger from discharging externally according to the duration” include: Comparing the duration with a preset duration; If the duration is longer than the preset duration, the on-board charger stops discharging. If the duration is not greater than the preset duration, the on-board charger is not stopped from discharging.

7. The control method according to claim 1, characterized in that: The control method further includes: During the process of the on-board charger discharging externally, determining whether the discharge socket and the plug are in a loose connection state; If it is determined that the discharge socket and the plug are in a loose connection state, the on-board charger stops discharging externally; If it is determined that the discharge socket and the plug are not in a loose connection state, the on-board charger is not stopped from discharging externally.

8. The control method according to any one of claims 1 to 7, characterized in that: The control method further includes: During the process of the on-board charger discharging, a current signal is sent to the display system of the vehicle or the mobile terminal to display the real-time current.

9. The control method according to any one of claims 2 to 7, characterized in that: When the on-board charger stops discharging externally, a prompt message is sent to the display system or mobile terminal of the vehicle.

10. A vehicle, characterized in that: The vehicle includes a controller configured to execute the control method according to any one of claims 1 to 9. A printed circuit board is provided in the discharge socket, and a temperature sensor and a micro switch are integrated on the printed circuit board.

11. The vehicle according to claim 10, characterized in that A safety door slider and an elastic component are further provided in the socket of the discharge socket. The safety door slider is elastically connected to the housing of the discharge socket through the elastic component to block the socket after the plug is pulled out.

12. The vehicle according to claim 10, characterized in that The vehicle further includes a discharge switch, which is disposed on a control panel of the vehicle.

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