Vehicle control method, control system and vehicle

Abstract

The invention provides a vehicle control method and system and a vehicle. The vehicle comprises a range extender and a cabin used for containing the range extender, and the cabin is provided with a cabin door. The control method comprises the steps that the opening and closing state of a cabin door, the running speed of the vehicle, power demand data of the vehicle and the receiving state of a forced starting signal representing starting of a forced control range extender are obtained; and under the condition that the cabin door is in the open state, the range extender is controlled according to the running speed of the vehicle, the power demand data and the receiving state of the forced starting signal. And when the cabin door is in the open state, the range extender is controlled according to the vehicle running speed, the power demand data and the forced starting signal receiving state which are obtained through real-time monitoring. Differential response is made according to different working conditions, unexpected power interruption caused by the fact that the range extender is controlled to stop regardless of conditions when the cabin door is opened is avoided, and therefore the control accuracy of the range extender is improved, and the safety and efficiency of vehicle operation are both considered.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more particularly to a vehicle control method, a control system, and a vehicle. Background Technology

[0002] Range-extended electric vehicles (REEVs) are equipped with a range extender that charges the vehicle's battery to extend its driving range. In some vehicles, such as buses, the range extender is housed in a dedicated compartment. This compartment has a door that, when opened, connects the interior to the outside environment.

[0003] However, the operation of a range extender generates high temperatures, noise, and even potential hazards related to fuel and high-voltage electricity. In related technologies, to ensure absolute safety during the door opening process, the opening of the door is considered a serious safety event. Forcibly stopping the range extender once door opening is detected would have an excessive impact on vehicle operating efficiency. Summary of the Invention

[0004] This application provides a vehicle control method, a control system, and a vehicle to improve the accuracy of range extender control, thereby balancing vehicle operation safety and efficiency.

[0005] This application provides a vehicle control method. The vehicle includes a range extender and a compartment for accommodating the range extender, and the compartment is provided with a door. The control method includes: obtaining the opening and closing state of the door, the vehicle's driving speed, the vehicle's power demand data, and the receiving state of a forced start signal characterizing the forced start of the range extender; when the door is in the open state, controlling the range extender according to the vehicle's driving speed, power demand data, and the receiving state of the forced start signal.

[0006] Optionally, the range extender is controlled based on the vehicle's driving speed, power demand data, and the reception status of the forced start signal, including: if the vehicle's driving speed is greater than a speed threshold, and the reception status of the forced start signal is "received," or if the current power demand data meets the range extender's start-up conditions, then the range extender is controlled to start.

[0007] Optionally, the range extender is controlled based on the vehicle's driving speed, power demand data, and the reception status of the forced start signal, including: if the vehicle's driving speed is less than or equal to a speed threshold, and the reception status of the forced start signal is "received," and the current power demand data meets the range extender's start conditions, then the range extender is controlled to start.

[0008] Optionally, the control method further includes: obtaining the current state of the range extender; if the current state of the range extender is running and the reception status of the forced start signal is not received, then controlling the range extender to stop.

[0009] Optionally, the control method further includes: obtaining the current state of the range extender; if the forced start signal is received and the current power demand data meets the range extender start conditions, then controlling the range extender to start, including: if the current state of the range extender is a stopped state, and the forced start signal is received and the current power demand data meets the range extender start conditions, then controlling the range extender to start.

[0010] Optionally, the control method further includes: when the door is open, if the vehicle speed is less than or equal to a speed threshold, obtaining the current state of the range extender; and controlling the range extender according to the current state of the range extender.

[0011] Optionally, the range extender can be controlled according to its current state, including: if the current state of the range extender is running, controlling the range extender to continue running.

[0012] Optionally, the system obtains data on the opening and closing status of the hatch, the vehicle's speed, and power requirements, including: obtaining the opening and closing status of the hatch; and obtaining the current speed and power requirements when the hatch opening and closing status is switched.

[0013] This application provides a vehicle control system, including one or more processors, for implementing the aforementioned vehicle control method.

[0014] This application provides a vehicle, including: a range extender; a compartment for housing the range extender, the compartment being provided with a door; and the aforementioned vehicle control system, electrically connected to the range extender.

[0015] The vehicle control method, control system, and vehicle provided in this application monitor in real time the opening and closing status of the vehicle doors, the vehicle's speed, power demand data, and the reception status of forced start signals during vehicle operation. When the doors are open, the range extender is controlled based on this information. This allows for differentiated responses to different operating conditions, avoiding unexpected power interruptions caused by indiscriminately stopping the range extender when the doors are open, thereby improving the accuracy of range extender control and balancing vehicle safety and efficiency. Attached Figure Description

[0016] Figure 1 This is a flowchart of a vehicle control method provided in one embodiment of this application;

[0017] Figure 2 This is a flowchart of a vehicle control method provided in another embodiment of this application;

[0018] Figure 3 This is a flowchart of a vehicle control method provided in another embodiment of this application;

[0019] Figure 4 This is a flowchart of a vehicle control method provided in another embodiment of this application;

[0020] Figure 5 This is a flowchart of a vehicle control method provided in another embodiment of this application;

[0021] Figure 6 This is a flowchart of a vehicle control method provided in another embodiment of this application. Detailed Implementation

[0022] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings.

[0023] This application provides a vehicle including a range extender and a compartment for housing the range extender, the compartment being provided with a door. The door can be controlled to open or close, allowing personnel to inspect the range extender when open. In at least some embodiments, the vehicle is a bus, and the door is located at the rear of the bus.

[0024] The vehicle also includes a control system electrically connected to the range extender within the vehicle. The control system includes one or more processors for implementing vehicle control methods.

[0025] In some embodiments, the vehicle includes an information acquisition system electrically connected to the control system. Specifically, the information acquisition system includes a vehicle speed sensor and a door status sensor. The vehicle speed sensor is used to monitor the vehicle's speed. The door status sensor is used to monitor the opening and closing status of the doors, i.e., whether the doors are open or closed.

[0026] The vehicle also includes a forced start input terminal, electrically connected to the range extender. This can be, for example, a forced start button. The forced start input terminal allows input of a forced start button signal indicating control of the range extender. In some embodiments, this forced start input terminal is electrically connected to the control system, allowing the system to detect the reception status of the forced start signal. That is, whether the user has input a forced start signal, reflecting the user's current control intention.

[0027] Combination Figure 1 As shown in the figure, this application provides a vehicle control method, which includes steps S10 to S20.

[0028] Step S10: Obtain the opening and closing status of the hatch, the vehicle's driving speed, the vehicle's power demand data, and the reception status of the forced start signal characterizing the forced control of the range extender.

[0029] In at least some embodiments, the vehicle control method is executed by the vehicle's control system. The vehicle's control system is connected to a door status sensor in the vehicle to obtain the door's open / closed state. The control system is electrically connected to a vehicle speed sensor in the vehicle to obtain the vehicle's speed.

[0030] In step S20, with the hatch in the open position, the range extender is controlled based on the vehicle's driving speed, power demand data, and the received status of the forced start signal.

[0031] The control method provided in this application embodiment monitors in real time the opening and closing status of the hatch, the vehicle's speed, power demand data, and the reception status of the forced start signal during vehicle operation. When the hatch is open, the range extender is controlled based on this information. This allows for differentiated responses to different operating conditions, avoiding unexpected power interruptions caused by indiscriminately stopping the range extender when the hatch is open. This improves the accuracy of range extender control while maintaining both vehicle safety and efficiency.

[0032] In some embodiments, obtaining the opening / closing status of the hatch, the vehicle's speed, and power demand data includes: obtaining the opening / closing status of the hatch; and obtaining the current speed and power demand data when the hatch's opening / closing status changes. The hatch's opening / closing status change includes the hatch changing from an open state to a closed state, and vice versa. Whenever the hatch's opening / closing status changes, vehicle status monitoring is re-performed, i.e., the current speed and power demand data are refreshed, to ensure the accuracy of data monitoring and subsequent range extender control. This also helps to save unnecessary monitoring processes. In some embodiments, even if the hatch's opening / closing status does not change, the current speed and power demand data are still obtained. This helps to ensure the stability of data monitoring.

[0033] Combination Figure 2 As shown, this application provides another vehicle control method, including steps S10 to S21.

[0034] Step S10: Obtain the opening and closing status of the hatch, the vehicle's driving speed, the vehicle's power demand data, and the reception status of the forced start signal characterizing the forced control of the range extender.

[0035] Step S21: When the hatch is open, if the vehicle speed is greater than the speed threshold, and the forced start signal is received, or the current power demand data meets the range extender start conditions, then the range extender is controlled to start.

[0036] The hatch connects the vehicle compartment to the external environment. If the vehicle speed exceeds a certain threshold (i.e., at high speeds), the hatch might be open due to accidental opening caused by vehicle vibrations or component malfunction, or a misdetection of the hatch's open / closed status. At this high speed, personnel are unlikely to approach the hazardous area near the range extender. Therefore, there is no need to directly shut down the range extender; instead, start-up control can be implemented based on the received forced start signal and the range extender's start-up conditions. This helps avoid accidental shutdown due to hatch opening under low-safety-risk high-speed conditions, ensuring power continuity and vehicle operating efficiency, thereby improving the accuracy of range extender control and balancing safety and efficiency.

[0037] The speed threshold can be set according to actual needs. For example, it can be set to 1 km / h to 10 km / h. Further, it can be set to 3 km / h to 7 km / h. For example, it can be set to 5 km / h. By setting the speed threshold, the following situation of people near the range extender can be estimated, thereby enabling the assessment of the safety risks of the range extender.

[0038] In some embodiments, when the hatch is open and the vehicle speed exceeds a speed threshold, the control method further includes: if the forced start signal is not received and the current power demand data meets the range extender shutdown conditions, then controlling the range extender to shut down. This allows unnecessary power sources to be shut down promptly during high-speed driving, reducing energy consumption and noise, avoiding ineffective operation, thereby improving the accuracy of range extender control and balancing vehicle safety and energy efficiency.

[0039] In some embodiments, the aforementioned power demand data includes the battery charge information of the vehicle's power battery, such as the vehicle's SOC (State of Charge). Correspondingly, the range extender start-up condition includes the battery charge being below a charge threshold. For example, the vehicle's current SOC is below a set SOC threshold. In some embodiments, the need for additional power support from the vehicle can be used as the range extender start-up condition. Sensors in the vehicle or set internal logic determine whether the vehicle currently needs additional power support. If additional power support is needed, it is determined that the range extender start-up condition is met. In some embodiments, the power demand data includes the starting requirements of electrical appliances in the vehicle. If electrical appliances require high-power starting, it is determined that the range extender start-up condition is met. For example, if the vehicle's air conditioning requires a high-power load to start, it is determined that the range extender start-up condition is met.

[0040] In some embodiments, upon receiving a forced start signal, the vehicle enters a forced start mode. This forced start mode includes more frequent parameter monitoring, restrictions on certain functions, and at least some of a specific energy management strategy. This specific energy management strategy includes, for example, prioritizing power supply and limiting output power. This helps ensure the safe operation of the vehicle under authorized start conditions.

[0041] Combination Figure 3 As shown, this application provides another vehicle control method, including steps S10 to S22.

[0042] Step S10: Obtain the opening and closing status of the hatch, the vehicle's driving speed, the vehicle's power demand data, and the reception status of the forced start signal characterizing the forced control of the range extender.

[0043] Step S22: When the hatch is open, if the vehicle speed is less than or equal to the speed threshold, and the forced start signal is received, and the current power demand data meets the range extender start conditions, then the range extender is controlled to start.

[0044] When the vehicle speed is less than or equal to the speed threshold, the likelihood of personnel being near the hatch increases, and the safety wind direction increases accordingly. When the vehicle speed is less than or equal to the speed threshold and the hatch is open, the range extender is only allowed to start when a forced start signal is received simultaneously and the power demand has met the starting conditions. This can be done by authorized personnel after confirming the risks under low-speed or stationary conditions, and then starting the unit as needed. This prevents unintended harm to surrounding personnel while ensuring power supply in special scenarios, thereby improving the accuracy of range extender control and balancing vehicle safety and efficiency.

[0045] In some embodiments, when the door is open, it is determined whether the vehicle's speed exceeds a speed threshold. If the vehicle's speed exceeds the speed threshold, and the forced start signal is received, or the current power demand data meets the range extender's start conditions, then the range extender is controlled to start. If the vehicle's speed is less than or equal to the speed threshold, and the forced start signal is received, and the current power demand data meets the range extender's start conditions, then the range extender is controlled to start.

[0046] Thus, by determining different range extender start conditions based on the vehicle speed when the hatch is open, range extender start control can be adapted to the respective levels of safety risk, improving the accuracy of range extender start control. Specifically, by prohibiting range extender start under non-forced conditions when the vehicle is stationary or at low speed with the hatch open, potential hazards are effectively isolated, reducing the risk of personal injury, and providing more reliable safety, especially in maintenance scenarios. At high speeds, there is no need to worry about the range extender stopping due to a brief opening of the rear hatch; during low-speed maintenance, the range extender can be partially inspected while running, and specific needs can be met through forced start, simplifying the operation process. Furthermore, unexpected range extender stoppages caused by the rear hatch opening are avoided, especially when the vehicle needs power support or the battery is low, ensuring the continuity and responsiveness of the powertrain and improving the passenger experience. This control method, through more refined start-stop control, reduces unnecessary start-stop cycles, helping to extend the lifespan of the range extender and related components, and may optimize energy utilization efficiency under specific conditions through specific energy management strategies in forced start mode.

[0047] In some embodiments, the control method further includes: obtaining the current state of the range extender and controlling the range extender in conjunction with the current state of the range extender. The current state of the range extender is either a running state or a stopped state.

[0048] Specifically, in some embodiments, the control method further includes: obtaining the current state of the range extender; if the forced start signal is received and the current power demand data meets the range extender start conditions, then controlling the range extender to start, including: if the range extender is currently in a stopped state, and the forced start signal is received and the current power demand data meets the range extender start conditions, then controlling the range extender to start. When the range extender is stopped and the door is open, and the vehicle's speed is not higher than a speed threshold, triggering start only when a forced start signal is received and the power demand meets the start conditions ensures that the range extender is only awakened from a stationary state when authorized and necessary, avoiding accidental start-up that could cause harm to personnel, thereby improving the accuracy of range extender control and balancing vehicle operation safety and efficiency.

[0049] In some embodiments, the control method further includes: obtaining the current state of the range extender; if the current state of the range extender is running and the forced start signal reception status is not received, then controlling the range extender to shut down. When the range extender is running and the door is open, and the vehicle's speed is not higher than a threshold, immediately shutting down if no forced start signal is received can cut off the power source in time before personnel may approach a dangerous area, preventing the risks of high temperature and high pressure caused by continuous operation, thereby improving the accuracy of range extender control and taking into account both the safety and efficiency of vehicle operation.

[0050] Combination Figure 4 As shown, this application embodiment provides a vehicle control method, including steps S10 to S234.

[0051] Step S10: Obtain the opening and closing status of the hatch, the vehicle's driving speed, the vehicle's power demand data, and the reception status of the forced start signal characterizing the forced control of the range extender.

[0052] In step S230, when the door is open, the current state of the range extender is obtained if the vehicle's speed is less than or equal to the speed threshold.

[0053] Step S231: If the current state of the range extender is running and the forced start signal is not received, then control the range extender to stop.

[0054] Step S232: If the current state of the range extender is running and the forced start signal is received, then control the range extender to remain in the running state.

[0055] Step S233: If the current state of the range extender is stopped, the forced start signal is received, and the current power demand data meets the start conditions of the range extender, then control the range extender to start.

[0056] Step S234: If the current state of the range extender is stopped, the forced start signal is not received, or the current power demand data does not meet the start conditions of the range extender, then control the range extender to remain stopped.

[0057] That is, when the range extender is currently in a stopped state, it will only start if both of the following conditions are met simultaneously: the forced start signal is received and the current power demand data meets the range extender start conditions. If either the forced start signal is not received or the current power demand data does not meet the range extender start conditions, the range extender will remain in a stopped state and start-up will be prohibited.

[0058] In some embodiments, the control method further includes: when the door is open, if the vehicle speed is less than or equal to a speed threshold, obtaining the current state of the range extender; and controlling the range extender based on the current state of the range extender. When the door is open and the vehicle speed is not higher than the threshold, by obtaining the current state of the range extender in real time and executing corresponding control accordingly, accurate basis can be provided for subsequent decisions, which helps to avoid misjudgments or control delays, thereby improving the accuracy of range extender control and taking into account both the safety and efficiency of vehicle operation.

[0059] Specifically, in some embodiments, the range extender is controlled based on its current state, including: if the range extender is currently in operation, controlling it to continue operating. If the range extender is already running and the door is open, and the vehicle speed is not higher than a threshold, it will continue to operate unless a forced start signal is received. This allows maintenance personnel to perform some inspection work under certain safety conditions without immediately stopping the machine, simplifying the operation process, thereby improving the accuracy of range extender control and achieving a balance between vehicle operation safety and efficiency.

[0060] At this time, combined Figure 5 As shown, this application embodiment provides a vehicle control method, including steps S10 to S234.

[0061] Step S10: Obtain the opening and closing status of the hatch, the vehicle's driving speed, the vehicle's power demand data, and the reception status of the forced start signal characterizing the forced control of the range extender.

[0062] Step S240: If the vehicle speed is less than or equal to the speed threshold when the hatch is open, the current state of the range extender is obtained.

[0063] Step S241: If the current state of the range extender is running, control the range extender to continue running.

[0064] Step S242: If the current state of the range extender is stopped, the forced start signal is received, and the current power demand data meets the start conditions of the range extender, then control the range extender to start.

[0065] Step S243: If the current state of the range extender is stopped, the forced start signal is not received, or the current power demand data does not meet the start conditions of the range extender, then control the range extender to remain stopped.

[0066] The following example provides a more detailed explanation of the implementation process of the vehicle control method. Figure 6 As shown, the control method includes steps S101 to S112.

[0067] The vehicle control system includes the vehicle control unit (VCU) and the range extender control unit (ECU). The VCU, as the core of the control system, integrates control logic algorithms for real-time vehicle control as described in this application.

[0068] The vehicle speed sensor detects and outputs the vehicle's current speed signal, V-speed, to the VCU in real time. The door status sensor detects and outputs the door's open / closed status signal, Door-State, to the VCU in real time. For example, Door-State = 1 indicates open, and Door-State = 0 indicates closed. The VCU also receives signals from other onboard systems such as the Battery Management System (BMS), including battery state of charge (SOC) and high-voltage system status. These signals collectively constitute part of the determination of the range extender's starting conditions. A forced start switch is installed in the vehicle, for example, located on the instrument panel. This forced start switch is operated by authorized personnel and generates a forced start signal, Force-Start-Signal, to the VCU. This forced start signal is, for example, a rising edge signal.

[0069] The VCU executes control methods based on the received signals and generates corresponding control commands (Control-Commands) for the range extender controller (ECU). The ECU is responsible for receiving commands from the VCU and controlling the start-up, shutdown, and operating mode of the range extender.

[0070] In step S101, the VCU collects the vehicle speed signal V-speed output by the vehicle speed sensor and the door status signal Door-State output by the door status sensor in real time, as well as the status of the forced start switch and related status signals from other systems.

[0071] The state of the forced start switch is used to determine whether a Force-Start-Signal rising edge has been generated.

[0072] In step S102, the VCU determines whether the current vehicle speed V-speed is greater than the speed threshold V-threshold.

[0073] In this embodiment, the speed threshold V-threshold is set to 5 km / h.

[0074] If V-speed > V-threshold, that is, the vehicle speed is greater than 5 km / h, then proceed to step S103.

[0075] If V-speed≤V-threshold, that is, the vehicle speed is less than or equal to 5km / h, then proceed to step S106.

[0076] Step S103: The VCU determines whether the door status signal Door-State is 1.

[0077] If Door-State = 1, indicating the door is open, the VCU assumes the vehicle speed is relatively high, making it unlikely for personnel to remain near the rear compartment for an extended period. Therefore, the operational risk of the range extender is relatively low, and the current operating state of the range extender remains unchanged. Step S104 is executed. If Door-State = 0, indicating the door is closed, the VCU skips step S104 and directly executes step S105.

[0078] In step S104, if the range extender ECU is currently running, it will continue to run; if it is in a stopped state, it will remain stopped. Furthermore, the control logic returns directly to step S101 to continue monitoring.

[0079] Step S105: Logic for reassessing the state after the hatch is closed.

[0080] Regardless of whether the vehicle is at high speed, low speed, or stationary, once the VCU detects that the door status signal Door-State changes from 1 to 0 (i.e., the door changes from open to closed), a state reassessment is triggered. The VCU ignores the current state of the range extender and independently determines whether the range extender should start, maintain operation, or stop based entirely on the vehicle's actual operating conditions. These actual operating conditions include vehicle speed (V-speed), battery SOC, load status, and driving demands. Based on the assessment result, the VCU sends a corresponding Control-Command (start, stop, or maintain) to the ECU. After sending the command, the control logic returns to step S101 and continues normal monitoring.

[0081] S106: The VCU determines whether the Door-State signal is 1.

[0082] If Door-State = 1, indicating the door is open, the VCU considers the vehicle speed to be slow or stationary, and personnel may be approaching the range extender, resulting in a higher operational risk for the range extender. Therefore, a stricter control strategy is implemented, i.e., step S107. If Door-State = 0, indicating the door is closed, the VCU directly executes step S105.

[0083] Step S107: The VCU monitors the current range extender state (Engine-State) fed back by the range extender ECU.

[0084] In step S108, if Engine-State = "Running", then keep the range extender running.

[0085] The VCU sends a control command to the ECU to maintain the current state, or, without a specific command, allows the range extender to continue operating in its current state. This facilitates partial inspections by maintenance personnel with a certain level of safety awareness. The control logic then returns directly to step S101.

[0086] Furthermore, it can detect whether a forced start signal is received, and only control the range extender to start if a forced start signal is received. If no forced start signal is received, the range extender is controlled to stop.

[0087] Step S109: If Engine-State = "Stopped", determine whether the range extender start conditions are met and whether there is a forced start signal.

[0088] The VCU assesses whether "Other Conditions" meet the range extender's startup requirements. These conditions may include: battery SOC below a certain threshold, vehicle requiring additional power support, and high-power loads such as air conditioning being activated. Let the assessment result be denoted as Cond-Met. For example, True indicates that the requirements are met, and False indicates that they are not met.

[0089] The VCU detects whether it has received the rising edge of the Force-Start-Signal signal. The detection result is denoted as Force-Start-Received. For example, True indicates that the rising edge has been received, and False indicates that it has not been received or has been recovered.

[0090] The VCU performs a logical judgment and executes one of steps S110, S111, and S112.

[0091] In step S110, if Cond-Met = True and Force-Start-Received = False, the VCU sends a control command to the ECU to disable startup. The control logic then returns directly to step S101.

[0092] This prevents the range extender from accidentally starting when people may come into contact with dangerous areas.

[0093] Step S111: If Cond-Met = True and Force-Start-Received = True, then the VCU considers that the authorized personnel have confirmed the risk and need to start the range extender, and performs forced start and special mode execution.

[0094] Specifically, the VCU sends a start command to the ECU, along with mode information, instructing the ECU to start the range extender and switch to "forced start mode." This mode may include more frequent monitoring of safety parameters, limiting certain functions, or employing specific energy management strategies to ensure safe operation under authorized start conditions. The control logic then returns directly to step S101.

[0095] Step S112: If Cond-Met = False, the VCU does not issue a startup command.

[0096] At this point, regardless of the Force-Start-Received status, the start condition itself is not met, and the VCU does not issue a start command. If the range extender has already stopped, it remains stopped. The control logic directly returns to step S101.

[0097] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are quite specific and detailed. However, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this application, and these modifications and improvements all fall within the protection scope of this application.

[0098] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

Claims

1. A method for controlling a vehicle, characterized in that, The vehicle includes a range extender and a compartment for housing the range extender, and the compartment is provided with a door; The control method includes: The system obtains the opening and closing status of the hatch, the vehicle's driving speed, the vehicle's power demand data, and the reception status of the forced start signal characterizing the forced start of the range extender. With the hatch open, the range extender is controlled based on the vehicle's speed, power demand data, and the reception status of the forced start signal.

2. The control method according to claim 1, characterized in that, The step of controlling the range extender based on the vehicle's driving speed, power demand data, and the reception status of the forced start signal includes: If the vehicle's speed exceeds a speed threshold, and the forced start signal is received, or if the current power demand data meets the range extender's start conditions, then the range extender is controlled to start.

3. The control method according to claim 1 or 2, characterized in that, The step of controlling the range extender based on the vehicle's driving speed, power demand data, and the reception status of the forced start signal includes: If the vehicle's speed is less than or equal to a speed threshold, and the forced start signal is received, and the current power demand data meets the range extender start conditions, then the range extender is controlled to start.

4. The control method according to claim 3, characterized in that, The control method further includes: Get the current status of the range extender; If the range extender is currently in the running state and the forced start signal is not received, then the range extender is controlled to stop.

5. The control method according to claim 3, characterized in that, The control method further includes: Obtain the current state of the range extender; If the forced start signal is received and the current power demand data meets the range extender start condition, then controlling the range extender to start includes: If the range extender is currently in a stopped state, and the forced start signal is received, and the current power demand data meets the range extender start conditions, then the range extender is controlled to start.

6. The control method according to claim 1, characterized in that, The control method further includes: If the vehicle speed is less than or equal to a speed threshold when the hatch is open, the current state of the range extender is obtained. The range extender is controlled according to its current state.

7. The control method according to claim 6, characterized in that, The step of controlling the range extender based on its current state includes: If the range extender is currently in an operating state, control the range extender to continue maintaining that operating state.

8. The control method according to claim 1, characterized in that, The acquisition of the opening / closing status of the hatch, the vehicle's speed, and power demand data includes: Obtain the opening and closing status of the hatch; When the opening and closing state of the hatch is switched, the current driving speed and power demand data are obtained.

9. A vehicle control system, characterized in that, It includes one or more processors for implementing the vehicle control method as described in any one of claims 1-8.

10. A vehicle, characterized in that, include: Range extender; A compartment for accommodating the range extender, and the compartment is provided with a door; and, The vehicle control system as described in claim 9 is electrically connected to the range extender.

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