An electric vehicle door control method, control system, automobile and storage medium

Abstract

The application relates to an electric vehicle door control method, which comprises the following steps: when a first mode switching instruction is acquired, the control mode is switched to a normal mode; in the normal mode, the working state of a door driving motor of the electric vehicle door is acquired, when the working state of the door driving motor is a normal running state, a parameter related to the temperature of the door driving motor is input into a pre-established motor temperature prediction model, a motor temperature prediction result is calculated, when the motor temperature prediction result meets preset motor overheating protection conditions, the electric vehicle door is controlled according to a preset overheating control strategy, and the door driving motor is protected from overheating. The application further provides an electric vehicle door control system. The application further provides an automobile. The application further provides a storage medium. The application improves the protection of the door driving motor, helps save cost and improve the reliability of the electric vehicle door, and can improve the use experience of users.

Description

Technical Field

[0001] This invention relates to automobiles, and more specifically to an electric vehicle door control method, a control system, an automobile, and a storage medium. Background Technology

[0002] The opening and closing of a car's electric door is powered by a motor. Electric doors are used frequently during vehicle operation, making the motor a high-frequency component. Repeatedly opening and closing the electric door or repeatedly testing its functionality can easily cause the motor to overheat or even be damaged, negatively impacting the electric door's lifespan and failure rate.

[0003] In existing technologies, to improve the lifespan and reduce the failure rate of electric door systems, a conventional solution is to use a temperature sensor to monitor the temperature of the electric door's motor. When the motor temperature exceeds a threshold, the motor's operating state or performance is limited, thereby preventing overheating failure. However, the aforementioned conventional solution still has the following technical problems:

[0004] When the temperature sensor fails, the motor will not be able to work properly, making it difficult to guarantee the motor's reliability.

[0005] It is very difficult to place temperature sensors on the motor rotor. Temperature sensors are usually placed on the motor stator. Temperature sensors placed on the stator are difficult to monitor the temperature of the motor rotor.

[0006] Temperature sensors have both usage and maintenance costs, which leads to higher usage and maintenance costs for electric doors.

[0007] Conventional solutions are limited in scope, protecting the motor by restricting its operating state or performance when the temperature exceeds a threshold. This can easily lead to frequent restrictions on the motor's operating state or performance, negatively impacting the user experience. Summary of the Invention

[0008] The purpose of this invention is to provide an electric vehicle door control method, control system, and vehicle to alleviate or eliminate at least one of the aforementioned technical problems.

[0009] The electric vehicle door control method of the present invention includes the following steps:

[0010] When the first mode switching command is received, the control mode is switched to normal mode;

[0011] In normal mode, the working status of the door drive motor of the electric door is obtained. When the working status of the door drive motor is normal operation, the parameters related to the temperature of the door drive motor are input into the pre-established motor temperature prediction model to calculate the motor temperature prediction result.

[0012] When the predicted motor temperature meets the preset motor overheat protection conditions, the electric door is controlled according to the preset overheat control strategy to protect the door drive motor from overheating.

[0013] Optionally, the method may also include the following steps: when the motor temperature prediction result meets the preset first normal operating conditions, the electric door is controlled according to the preset first normal control strategy to control the electric door to perform the action corresponding to the door action command input by the user.

[0014] Optionally, the following steps are also included: in the normal mode, the operating status of the door drive motor is obtained; when the operating status of the door drive motor is obtained as a normal stop state, the electric door is controlled according to a preset second normal control strategy to control the electric door to perform the action corresponding to the door action command input by the user.

[0015] Optionally, the following steps are also included: in the normal mode, the operating status of the door drive motor is obtained; when the operating status of the door drive motor is obtained as a stalled state, the electric door is controlled according to a preset stall control strategy to protect the door drive motor from stalling.

[0016] Optionally, controlling the electric door according to the preset stall control strategy includes the following steps: stopping the execution of the acquired door action command; and exiting the stall control strategy after controlling the electric door according to the stall control strategy for a first preset time.

[0017] Optionally, the method may also include the following steps: when the motor temperature prediction result meets the preset motor overheating reminder conditions, an overheating reminder command is sent to the vehicle-mounted human-machine interaction device to drive the vehicle-mounted human-machine interaction device to remind the user of overheating.

[0018] Optionally, the motor temperature prediction result includes the number of remaining door operations before the door drive motor overheats.

[0019] Optionally, the motor temperature prediction result includes the expected cooling time after the door drive motor overheats.

[0020] Optionally, controlling the electric door according to the preset overheat control strategy includes the following steps: controlling the electric door to close; and exiting the overheat control strategy after controlling the electric door for the expected cooling time according to the overheat control strategy.

[0021] Optionally, the following steps are also included: when a second mode switching command is received, the control mode is switched to the anti-play mode; in the anti-play mode, the change data of the working state of the door drive motor is obtained, and when the change data meets the preset anti-play conditions, the electric door is controlled according to the preset anti-play control strategy to protect the door drive motor from play.

[0022] Optionally, the method may also include the following steps: when the changed data meets the preset second normal working conditions, the electric door is controlled according to the preset third normal control strategy to control the electric door to perform the action corresponding to the door action command input by the user.

[0023] Optionally, controlling the electric vehicle door according to the preset anti-tampering control strategy includes the following steps: controlling the electric vehicle door to close; after controlling the electric vehicle door according to the anti-tampering control strategy for a second preset time, exiting the anti-tampering control strategy.

[0024] Optionally, the following steps are also included: when the vehicle is in motion and the vehicle speed is greater than 5 km / h, or when the electric door is locked by the child lock, or when no user input control command is received within a preset third time period; switch the control mode to sleep mode and control the electric door according to the preset sleep control strategy.

[0025] Optionally, the parameters include the power-on current data of the door drive motor, the power-on time data of the door drive motor, the power-on interval data of the door drive motor, the interval time data of the user inputting door action commands, vehicle operation data, and vehicle environment data.

[0026] This invention also proposes an electric door control system, including a control device and an electric door. The electric door includes a door body and a door drive motor that provides power for opening and closing the door body. The control device is used to: switch the control mode to normal mode when a first mode switching command is received; in normal mode, acquire the operating status of the door drive motor of the electric door; when the operating status of the door drive motor is normal operation, input parameters related to the temperature of the door drive motor into a pre-established motor temperature prediction model to calculate the motor temperature prediction result; when the motor temperature prediction result meets the preset motor overheat protection conditions, control the electric door according to the preset overheat control strategy to protect the door drive motor from overheating.

[0027] Optionally, the control device is further configured to: when the motor temperature prediction result meets the preset first normal operating conditions, control the electric door according to the preset first normal control strategy, so as to control the electric door to perform the action corresponding to the door action command input by the user.

[0028] Optionally, the control device is further configured to: include the following steps: in the normal mode, acquire the operating state of the door drive motor; when the operating state of the door drive motor is acquired to be a normal stop state, control the electric door according to a preset second normal control strategy, so as to control the electric door to perform the action corresponding to the door action command input by the user.

[0029] Optionally, the control device is further configured to: in the normal mode, acquire the operating status of the door drive motor; when the operating status of the door drive motor is acquired to be in a stall state, control the electric door according to a preset stall control strategy to protect the door drive motor from stall.

[0030] Optionally, the control device is a vehicle central processing module.

[0031] Optionally, the electric door further includes a control module, a current monitoring module, a timing module, and a door position sensor. The control module is used to control the working state of the door drive motor. The current monitoring module is used to monitor the energizing current data of the door drive motor. The timing module is used to monitor the energizing time data and energizing interval data of the door drive motor. The door position sensor is used to detect the opening and closing angle of the door body.

[0032] The present invention also proposes an automobile, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the electric vehicle door control method as described in any of the preceding claims.

[0033] The present invention also proposes a storage medium having a computer program stored thereon, which is executed by a processor to implement the electric vehicle door control method as described in any of the preceding claims.

[0034] This invention features the following characteristics: It rationally sets control modes and strategies, selecting different control strategies for different operating conditions of the electric door's opening and closing, providing more comprehensive protection for the door drive motor and the electric door itself. This helps to extend the lifespan of the door drive motor and reduce its failure rate. The anti-overheating mode effectively reduces the possibility and frequency of overheating in the door drive motor, improving both protection and user experience. Real-time temperature prediction of the door drive motor using a motor temperature prediction model allows for the execution of overheat control strategies when overheat protection is required, preventing damage and further extending its lifespan and reducing its failure rate. The real-time temperature prediction using the motor temperature prediction model also reduces the need for thermal protection controllers and temperature sensors, contributing to cost savings and improved reliability of the electric door. Attached Figure Description

[0035] Figure 1 This is a flowchart of the electric vehicle door control method described in the specific implementation embodiment;

[0036] Figure 2 This is a flowchart of the electric vehicle door control method in normal mode as described in the specific implementation embodiment;

[0037] Figure 3 This is a flowchart of the electric vehicle door control method in anti-tamper mode as described in the specific implementation embodiment;

[0038] Figure 4 This is a schematic diagram illustrating the control modes and control strategies described in the specific implementation method;

[0039] Figure 5 This is a schematic diagram of the electric vehicle door control system described in a specific implementation embodiment;

[0040] Figure 6 This is a schematic diagram illustrating the operation of the motor temperature prediction model described in the specific implementation method. Detailed Implementation

[0041] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.

[0042] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0043] like Figure 1 As shown, this application provides an electric vehicle door control method, including the following steps:

[0044] S10: When the first mode switching command is received, switch the control mode to normal mode;

[0045] S20: In normal mode, obtain the working status of the door drive motor of the electric door. When the working status of the door drive motor is normal operation, input the parameters related to the temperature of the door drive motor into the pre-established motor temperature prediction model and calculate the motor temperature prediction result.

[0046] S30: When the motor temperature prediction result meets the preset motor overheat protection conditions, the preset overheat control strategy is entered, and the electric door is controlled according to the preset overheat control strategy to protect the door drive motor from overheating.

[0047] In this embodiment, a control device can be used to implement the above-mentioned electric door control method. The control device is equipped with a memory and a controller. The memory stores a computer program. When the computer program is executed by the processor, it performs the following: when a first mode switching instruction is received, the control mode is switched to the normal mode; in the normal mode, the working state of the door drive motor of the electric door is obtained; when the working state of the door drive motor is the normal operating state, the parameters related to the temperature of the door drive motor are input into a pre-established motor temperature prediction model to calculate the motor temperature prediction result; when the motor temperature prediction result meets the preset motor overheat protection conditions, the electric door is controlled according to the preset overheat control strategy to protect the door drive motor from overheating.

[0048] Understandably, users input control commands through the in-vehicle human-machine interface (HMI). These commands include mode switching commands and door actions. The HMI sends the user-inputted commands to the control unit, which then receives them. For example, a user can input a first mode switching command via voice or a physical button. Upon receiving this command, the control unit switches the control mode to normal mode. The control unit can obtain the operating status of the door drive motor from the electric door control module and can also obtain temperature-related parameters of the door drive motor from the electric door control module and other modules of the vehicle. A motor temperature prediction model is stored in the control unit's memory. The processor calls this model, using the temperature-related parameters of the door drive motor as input, to perform calculations, and the output is the predicted motor temperature.

[0049] The electric door control method described above uses a motor temperature prediction model to predict the temperature of the door drive motor in real time. When overheat protection is required, an overheat control strategy can be executed to protect the door drive motor from overheating damage. This effectively reduces the risk of overheating and excessive thermal design redundancy, ensuring the safety of the door drive motor components and improving customer experience. It also helps extend the lifespan of the door drive motor and reduce its failure rate. Furthermore, using a motor temperature prediction model to predict the door drive motor temperature in real time reduces the need for thermal protection controllers and temperature sensors, contributing to cost savings and improved reliability of the electric door.

[0050] In some embodiments, the electric door control method further includes the following steps: when the motor temperature prediction result meets a preset first normal operating condition, a preset first normal control strategy is entered, and the electric door is controlled according to the preset first normal control strategy to control the electric door to perform an action corresponding to the door action command input by the user. Using the above technical solution, the first normal operating condition can be set according to the type of output result of the motor temperature prediction model, ensuring that the door drive motor will not overheat when the electric door performs an action. In specific implementation, the first normal operating condition can be set corresponding to the motor overheat protection condition, and whether the motor temperature prediction result meets the first normal operating condition is determined by judging whether the motor temperature prediction result meets the motor overheat protection condition. As a specific example, the electric door control method includes the following steps: judging whether the motor temperature prediction result meets the preset motor overheat protection condition; when the motor temperature prediction result meets the motor overheat protection condition, the electric door is controlled according to the preset overheat control strategy; when the motor temperature prediction result does not meet the motor overheat protection condition, the electric door is controlled according to the preset first normal control strategy.

[0051] In some embodiments, the electric door control method further includes the following steps: in the normal mode, acquiring the operating state of the door drive motor; when the operating state of the door drive motor is acquired to be a normal stop state, entering a preset second normal control strategy, and controlling the electric door according to the preset second normal control strategy to control the electric door to perform an action corresponding to the door action command input by the user. Using the above technical solution, in the normal mode, when the operating state of the door motor is in a normal stop state, the possibility of the door drive motor overheating when controlling the electric door to perform an action is relatively small. Executing the second normal control strategy based on the door motor's operating state being in a normal stop state helps reduce the computational load. In specific implementations, the second normal control strategy and the first normal control strategy can adopt the same control strategy, that is, both adopt the preset normal control strategy. As a specific example, S20 further includes the following steps: when the operating state of the door drive motor is acquired to be a normal stop state, entering a preset second normal control strategy, and controlling the electric door according to the preset second normal control strategy to control the electric door to perform an action corresponding to the door action command input by the user.

[0052] In some embodiments, controlling the electric door according to the normal control strategy includes the following steps: generating a control command corresponding to the acquired door action command, and sending the control command to the electric door to control the electric door to perform the action corresponding to the door action command input by the user.

[0053] In some embodiments, the motor temperature prediction result includes the number of remaining door operations before the door drive motor overheats. The number of door operations is measured in times. In specific implementations, a complete execution of one electric door opening action or a complete execution of one electric door closing action is counted as one door operation.

[0054] In some embodiments, the motor temperature prediction result includes the estimated cooling time after the door drive motor overheats. The estimated cooling time is in seconds. As a preferred example, the motor temperature prediction result includes the remaining number of door operations before the door drive motor overheats and the estimated cooling time after the door drive motor overheats.

[0055] In some embodiments, controlling the electric vehicle door according to a preset overheat control strategy includes the following steps: controlling the electric vehicle door to close; and after controlling the electric vehicle door for the expected cooling time according to the overheat control strategy, exiting the overheat control strategy.

[0056] In practical implementation, when the remaining number of door operations before the door drive motor overheats according to the motor temperature prediction result is 1, it indicates that the system enters a protection state after one operation. That is, it can be set so that when the remaining number of door operations before the door drive motor overheats according to the motor temperature prediction result is 1, a preset overheat control strategy is entered, and the electric door is controlled according to the preset overheat control strategy. After entering the preset overheat control strategy, when the electric door is in the closed state, no action is executed upon receiving the next door operation command, and the user is reminded through human-machine interaction; when the electric door is in the open state, the user requests to execute the door closing action upon receiving the next door operation command, and the user is reminded through human-machine interaction. The above-mentioned human-machine interaction reminder to the user is in the form of voice reminder or image and / or text reminder, and the interactive reminder content is: "Please do not frequently open and close the door. The electric door system has entered a rest state and is expected to resume in X minutes. Please wait patiently. You can manually open or close the door."

[0057] In some embodiments, the electric door control method further includes the following steps: in the normal mode, acquiring the operating state of the door drive motor; when the operating state of the door drive motor is acquired to be a stall state, controlling the electric door according to a preset stall control strategy to protect the door drive motor from stall.

[0058] In some embodiments, controlling the electric door according to a preset stall control strategy includes the following steps: stopping the execution of the acquired door action command; and exiting the stall control strategy after controlling the electric door according to the stall control strategy for a first preset time. Invoking the stall control strategy under stall conditions provides stall protection for the door drive motor, preventing damage to the door drive motor caused by prolonged power supply.

[0059] In some embodiments, the electric door control method further includes the following steps: when the motor temperature prediction result meets the preset motor overheating warning condition, an overheating warning command is sent to the in-vehicle human-machine interaction device to drive the in-vehicle human-machine interaction device to remind the user of overheating. As a specific example, the motor overheating warning condition is set to the number of remaining door operations before the door drive motor overheats (3). When the number of remaining door operations before the door drive motor overheats in the motor temperature prediction result is 3, an overheating warning command is sent to the in-vehicle human-machine interaction device. The interaction reminder method of the in-vehicle human-machine interaction device is a voice reminder or a picture and / or text reminder on the in-vehicle display screen. The interaction reminder content is "Please do not frequently open and close the door. The door will rest for X minutes after N actions." Here, N is the number of remaining door operations before the door drive motor overheats in the motor temperature prediction result, and X is the expected cooling time after the door drive motor overheats. By reminding the user through human-machine interaction, the damage caused by the door drive motor's temperature rising due to frequent starting and stopping of the motor can be effectively reduced.

[0060] In some embodiments, the electric door control method further includes the following steps: when the operating state of the door drive motor is detected to be stalled, a stall reminder command is sent to the in-vehicle human-machine interface device to drive the in-vehicle human-machine interface device to remind the user of the stall. As a specific example, the interactive reminder method of the in-vehicle human-machine interface device is a voice reminder or an image and / or text reminder on the in-vehicle display screen, and the interactive reminder content is "Please do not obstruct the door movement. Please manually open or close the door and try again after clearing the obstruction."

[0061] As a preferred example, such as Figure 2 As shown, in normal mode, the electric door control method includes the following steps:

[0062] S201: Obtain the current status flag of the door drive motor and determine whether the door drive motor is in the running state; if not, determine that the door drive motor is in the normal stop state and execute S202; if yes, execute S203.

[0063] S202: Enter normal control strategy;

[0064] S203: Loop through the status flags of the door drive motor, determine whether the door drive motor is in a stalled state or in a normal operating state. If the door drive motor is in a stalled state, execute S204; if the door drive motor is in a normal operating state, execute S205.

[0065] S204: Enter stall control strategy;

[0066] S205: Input the parameters related to the temperature of the door drive motor into the pre-established motor temperature prediction model, and calculate the motor temperature prediction result;

[0067] S301: Determine whether the motor temperature prediction result meets the preset motor overheat protection conditions. If yes, execute S302; otherwise, execute S202.

[0068] S302: Enter overheat control strategy.

[0069] It is understood that, in this embodiment, under normal mode, the electric door control method further includes the following steps: in response to receiving a door action command input by the user, S201 is executed; in S202, after entering the normal control strategy, a control command corresponding to the received door action command is generated, and the control command is sent to the electric door to control the electric door to perform the action corresponding to the door action command input by the user.

[0070] As a specific example, the state of the door drive motor can be determined based on the acquired current and time data. If the current of the door drive motor exceeds the rated current for more than 2 seconds, or if the current of the door drive motor exceeds the rated current for more than 2 seconds within 5 seconds, the door drive motor is determined to be in a stalled state; otherwise, the door drive motor is determined to be in normal operation.

[0071] In some embodiments, the electric door control method further includes the following steps: when a second mode switching command is received, the control mode is switched to the anti-tamper mode; in the anti-tamper mode, data on the change in the operating state of the door drive motor is acquired; when the change data meets preset anti-tamper conditions, an anti-tamper control strategy is entered, and the electric door is controlled according to the preset anti-tamper control strategy to protect the door drive motor from damage. As a specific example, the control device generates a second mode switching command in response to the time interval and / or number of user-inputted multiple door control commands meeting preset mode switching command generation conditions. After switching the control mode to the anti-tamper mode, the frequent start-stop of the motor can be actively prevented, effectively reducing the risk of damage caused by the temperature rise of the door drive motor due to frequent start-stop power-on.

[0072] In some embodiments, entering the anti-tampering control strategy and controlling the electric door according to the preset anti-tampering control strategy includes the following steps: controlling the electric door to close; after controlling the electric door according to the anti-tampering control strategy for a second preset time, exiting the anti-tampering control strategy. As a specific example, controlling the electric door to close includes the following steps: determining whether the safe closing conditions are met; if met, sending a closing command to the electric door to control the electric door to close; if not met, controlling the door drive motor to close. If the door closing is interrupted, controlling the door drive motor to close, and interactively reminding the user "Please clear any obstacles to the door's movement and manually lock the door," exiting the anti-tampering control strategy after 3 minutes.

[0073] In some embodiments, the electric door control method further includes the following steps: when the changed data meets a preset second normal operating condition, a preset third normal control strategy is entered, and the electric door is controlled according to the preset third normal control strategy to control the electric door to perform an action corresponding to the door action command input by the user. As a preferred example, the first normal control strategy, the second normal control strategy, and the third normal control strategy all adopt preset normal control strategies.

[0074] In some embodiments, during the anti-play mode, when the changed data meets the preset anti-play conditions, an anti-play reminder command is sent to the in-vehicle human-machine interface device (HMI) to drive the HMI to remind the user about anti-play. As a specific example, the interactive reminder method of the HMI is a voice reminder or an image and / or text reminder on the in-vehicle display screen. The interactive reminder content is "Please do not frequently open and close the car doors. The electric door system will exit the protection state after 3 minutes. You can manually open or close the car doors."

[0075] As a specific example, such as Figure 3 As shown, in anti-tampering mode, the electric door control method includes the following steps:

[0076] S401: Determine whether the input interval T0 of the door action command is greater than the set value T1. If yes, execute S402; otherwise, execute S403.

[0077] S402: Determine whether the number of operations M0 with an input interval time of less than 30 seconds is less than the set value M1. If yes, execute S404; otherwise, execute S403.

[0078] S403: Enter anti-gambling control strategy;

[0079] S404: Enter normal control strategy.

[0080] In some embodiments, the electric door control method further includes the following steps: when it is known that the vehicle is in motion and the vehicle speed is greater than 5 km / h, or when it is known that the electric door is in the child lock state, or when no control command input by the user is obtained within a preset time period; switch the control mode to sleep mode and control the electric door according to the preset sleep control strategy.

[0081] In some embodiments, the electric vehicle door control method further includes the following steps: when the vehicle's speed drops below 5 km / h, or when the vehicle changes from a driving state to a stationary state, or when the electric vehicle door child lock changes from a locked state to an unlocked state, or when a control command input by the user is received; exiting the sleep mode.

[0082] In practical implementation, in sleep mode, a sleep control strategy is entered, which controls the current monitoring module, timing module and door position sensor to reduce the monitoring frequency, and the control device adjusts and reduces computing resources, thereby reducing the power of the door drive motor, so that the electric door control system enters a working state that saves processor resources and reduces energy consumption.

[0083] In some embodiments, the parameters include the energizing current data of the door drive motor, the energizing time data of the door drive motor, the energizing interval data of the door drive motor, the interval data of the user inputting door action commands, vehicle operation data, and vehicle environment data. Vehicle operation data includes vehicle driving status and real-time vehicle speed, while vehicle environment data includes ambient temperature and the condition of obstacles around the door. As a specific example, such as... Figure 6 As shown, the system uses the following data as input: the energizing current data of the door drive motor, the energizing time data of the door drive motor, the energizing interval data of the door drive motor, the interval data of the user's input door action command, vehicle operation data, and vehicle environment data. It calls the motor temperature prediction model to perform calculations and outputs the remaining number of door operations before the door drive motor overheats and the expected cooling time after the door drive motor overheats.

[0084] like Figure 4As shown, in some embodiments, the control device stores three control modes and four control strategies. The three control modes are normal mode, anti-play mode, and hibernation mode. The four control strategies are normal control strategy, protection control strategy, stall control strategy, and hibernation control strategy. In normal mode, the control device can select to enter the normal control strategy, protection control strategy, or stall control strategy according to different conditions. In anti-play mode, the control device can select to enter the normal control strategy or protection control strategy according to different conditions. Using the above scheme, the control logic of the anti-play control strategy and the overheat control strategy is the same, and both can be set as protection control strategies; the control logic of the first normal control strategy, the second normal control strategy, and the third normal control strategy is the same, and all can be set as normal control strategies.

[0085] This invention also proposes an electric vehicle door control system, such as... Figure 5 As shown, the electric door control system includes a control device 1 and an electric door 2. The electric door 2 includes a door body and a door drive motor 25 that provides power for opening and closing the door body. The control device 1 is used to: switch the control mode to normal mode when a first mode switching command is received; in normal mode, acquire the working status of the door drive motor of the electric door; when the working status of the door drive motor is normal operation, input the parameters related to the temperature of the door drive motor into a pre-established motor temperature prediction model and calculate the motor temperature prediction result; when the motor temperature prediction result meets the preset motor overheat protection conditions, control the electric door according to the preset overheat control strategy to protect the door drive motor from overheating.

[0086] In some embodiments, the control device is further configured to: when the motor temperature prediction result meets the preset first normal operating conditions, control the electric vehicle door according to the preset first normal control strategy, so as to control the electric vehicle door to perform the action corresponding to the door action command input by the user.

[0087] In some embodiments, the control device is further configured to: in the normal mode, acquire the operating state of the door drive motor; when the operating state of the door drive motor is acquired to be a normal stop state, control the electric door according to a preset second normal control strategy, so as to control the electric door to perform the action corresponding to the door action command input by the user.

[0088] In some embodiments, the control device is further configured to: in the normal mode, acquire the operating state of the door drive motor; when the operating state of the door drive motor is acquired to be a stall state, control the electric door according to a preset stall control strategy to protect the door drive motor from stall.

[0089] In some embodiments, the control device is further configured to: when the motor temperature prediction result meets the preset motor overheating reminder conditions, send an overheating reminder command to the vehicle-mounted human-machine interaction device to drive the vehicle-mounted human-machine interaction device to provide an overheating reminder to the user.

[0090] In some embodiments, the control device is further configured to: switch the control mode to the anti-play mode when a second mode switching command is received; in the anti-play mode, acquire change data of the working state of the door drive motor, and when the change data meets the preset anti-play conditions, control the electric door according to the preset anti-play control strategy to protect the door drive motor from play.

[0091] In some embodiments, the control device is further configured to: when the change data meets a preset second normal operating condition, control the electric door according to a preset third normal control strategy, so as to control the electric door to perform an action corresponding to the door action command input by the user.

[0092] In some embodiments, the control device is further configured to: when it is determined that the vehicle is in motion and the vehicle speed is greater than 5 km / h, or when it is determined that the electric door is in the child lock state, or when no control command input by the user is obtained within a preset third time period; switch the control mode to sleep mode and control the electric door according to a preset sleep control strategy.

[0093] In some embodiments, the control device is a vehicle central processing module. The vehicle central processing module includes a memory, a processor, and a communication module. The memory stores data, decision-making programs, and a motor temperature prediction model. The processor acquires signals from the electric door and other vehicle modules, executes calculations using the programs stored in the memory, and then transmits instructions to the electric door to control it. The communication module transmits signal data with the electric door and other vehicle modules. The communication module also receives or sends data via a network to transmit data and the motor temperature prediction model, etc. The vehicle central processing module may include one or more processing units, which are functional modules with data acquisition, storage and transmission, data processing and calculation, and rapid software deployment capabilities.

[0094] In some embodiments, such as Figure 5As shown, the electric door 2 also includes a control module 21, a current monitoring module 22, a timing module 23, and a door position sensor 26. The control module controls the operating state of the door drive motor, the current monitoring module monitors the energizing current data of the door drive motor, the timing module monitors the energizing time data and energizing interval data of the door drive motor, and the door position sensor detects the opening and closing angle of the door body. An electric door opening / closing actuator, built into the electric door, is used to drive the opening and closing of the electric door.

[0095] In some embodiments, such as Figure 5 As shown, the door drive motor 25 is built into the opening and closing actuator 24 of the electric door and is used to drive the actuator in the opening and closing actuator 24 to perform corresponding actions. The door drive motor 25 consists of two parts: a stator and a rotor.

[0096] In some embodiments, a door position sensor is built into the electric door to detect the opening and closing angle of the door body.

[0097] In some embodiments, the current monitoring module is integrated into the control module and is used to monitor the energizing current parameters of the door drive motor. As a specific example, the current monitoring module is a Hall current sensor.

[0098] In some embodiments, the timing module is integrated into the control module to monitor the energizing time and energizing interval data of the door drive motor and transmit the data to the vehicle's central processing module. As a specific example, the timing module comprises a running timer and a reset timer.

[0099] In some embodiments, the control module is connected to the door position sensor signal and is used to control the operating state of the door drive motor. As a specific example, the control module is a vehicle body control module or a smart cockpit domain controller.

[0100] In practical implementation, after the electric door's dataset is trained and tested using algorithms such as algorithms or deep learning algorithms, it is compressed into a motor temperature prediction model. This model is then deployed in the vehicle's central processing module to predict the temperature of the door drive motor. Furthermore, as the vehicle is used, the central processing module can collect electric door usage data stored on the vehicle's hard drive from various terminals. This data is transmitted over the network to a cloud computing platform to train and optimize the motor temperature prediction model. The optimized model is then updated and deployed back to the central processing module via the network, enabling iterative optimization of the motor temperature prediction model.

[0101] As a specific example, an in-vehicle human-machine interface device can be a car display screen or an in-vehicle voice interaction device. A car display screen refers to a touchscreen LCD display with a graphical user interface. An in-vehicle voice interaction device refers to an in-vehicle device with voice acquisition, transmission, and sound playback functions.

[0102] The present invention also proposes an automobile, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the electric vehicle door control method as described in any of the preceding claims.

[0103] The present invention also proposes a computer-readable storage medium having a computer program stored thereon, which is executed by a processor to implement the electric vehicle door control method as described in any of the preceding claims.

[0104] The above embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. In the description of this specification, the reference to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., means that a specific feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. Furthermore, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

Claims

1. A method for controlling an electric vehicle door, characterized in that, Includes the following steps: When the first mode switching command is received, the control mode is switched to normal mode; In normal mode, the operating status of the electric door drive motor is acquired. When the operating status of the door drive motor is normal operation, the parameters related to the temperature of the door drive motor are input into the pre-established motor temperature prediction model to calculate the motor temperature prediction result. The parameters include the energizing current data of the door drive motor, the energizing time data of the door drive motor, the energizing interval data of the door drive motor, the interval time data of the user input door action command, vehicle operation data, and vehicle environment data. When the motor temperature prediction result meets the preset motor overheat protection conditions, the electric door is controlled according to the preset overheat control strategy to protect the door drive motor from overheating. When the second mode switching command is received, the control mode is switched to anti-play mode; In normal mode, the system selects between normal control strategy, overheat control strategy or stall control strategy based on the different operating states of the door drive motor. In anti-play mode, the system selects between normal control strategy and anti-play control strategy based on the different operating states of the door drive motor.

2. The electric vehicle door control method according to claim 1, characterized in that, It also includes the following steps: When the motor temperature prediction result meets the preset first normal working conditions, the electric door is controlled according to the preset first normal control strategy to control the electric door to perform the action corresponding to the door action command input by the user.

3. The electric vehicle door control method according to claim 1, characterized in that, It also includes the following steps: In the normal mode, the operating status of the door drive motor is obtained. When the operating status of the door drive motor is obtained as a normal stop state, the electric door is controlled according to the preset second normal control strategy to control the electric door to perform the action corresponding to the door action command input by the user.

4. The electric vehicle door control method according to claim 1, characterized in that, It also includes the following steps: In the normal mode, the operating status of the door drive motor is acquired. When the operating status of the door drive motor is acquired to be stalled, the electric door is controlled according to the preset stall control strategy to protect the door drive motor from stall.

5. The electric vehicle door control method according to claim 4, characterized in that, The process of controlling the electric door according to the preset stall control strategy includes the following steps: Stop executing the acquired door action command; after controlling the electric door according to the stall control strategy for a first preset time, exit the stall control strategy.

6. The electric vehicle door control method according to claim 1, characterized in that, It also includes the following steps: When the motor temperature prediction result meets the preset motor overheating warning conditions, an overheating warning command is sent to the vehicle-mounted human-machine interaction device to drive the vehicle-mounted human-machine interaction device to provide an overheating warning to the user.

7. The electric vehicle door control method according to claim 1, characterized in that, The motor temperature prediction result includes the number of remaining door operations before the door drive motor overheats.

8. The electric vehicle door control method according to claim 1, characterized in that, The predicted motor temperature results include the estimated cooling time after the door drive motor overheats.

9. The electric vehicle door control method according to claim 8, characterized in that, The process of controlling the electric door according to the preset overheat control strategy includes the following steps: Control the electric vehicle door to close; after controlling the electric vehicle door for the expected cooling time according to the overheat control strategy, exit the overheat control strategy.

10. The electric vehicle door control method according to claim 1, characterized in that, It also includes the following steps: In anti-tampering mode, the system acquires data on changes in the operating status of the door drive motor. When the changes meet preset anti-tampering conditions, the system controls the electric door according to the preset anti-tampering control strategy to protect the door drive motor from being tampered with.

11. The electric vehicle door control method according to claim 10, characterized in that, It also includes the following steps: When the changed data meets the preset second normal working conditions, the electric door is controlled according to the preset third normal control strategy to control the electric door to perform the action corresponding to the door action command input by the user.

12. The electric vehicle door control method according to claim 11, characterized in that, The process of controlling the electric vehicle door according to the preset anti-tampering control strategy includes the following steps: Control the electric vehicle door to close; after controlling the electric vehicle door for a second preset time according to the anti-play control strategy, exit the anti-play control strategy.

13. The electric vehicle door control method according to claim 1, characterized in that, It also includes the following steps: When the vehicle is detected to be in motion and its speed is greater than 5 km / h, or when the electric door is detected to be locked with the child lock, or when no user-inputted control command is received within a preset third time period, the control mode is switched to sleep mode, and the electric door is controlled according to the preset sleep control strategy.

14. The electric vehicle door control method according to claim 1, characterized in that, The parameters include the power-on current data of the door drive motor, the power-on time data of the door drive motor, the power-on interval data of the door drive motor, the interval data of the user inputting door action commands, vehicle operation data, and vehicle environment data.

15. An electric vehicle door control system, characterized in that, The device includes a control unit and an electric door. The electric door includes a door body and a door drive motor that provides power for opening and closing the door body. The control unit is used to switch the control mode to normal mode when a first mode switching command is received. In normal mode, the operating status of the electric door's door drive motor is acquired. When the door drive motor is in normal operating condition, parameters related to the door drive motor's temperature are input into a pre-established motor temperature prediction model to calculate the motor temperature prediction result. These parameters include the door drive motor's energizing current data, energizing time data, energizing interval data, interval data of user-inputted door action commands, vehicle operating data, and vehicle environmental data. When the motor temperature prediction result meets the preset motor overheat protection conditions, the electric door is controlled according to the preset overheat control strategy to protect the door drive motor from overheating. When a second mode switching command is received, the control mode is switched to anti-tampering mode. In normal mode, the normal control strategy, overheat control strategy, or stall control strategy are selected according to different conditions. In anti-gambling mode, you can choose to enter the normal control strategy or the anti-gambling control strategy depending on different conditions.

16. The electric vehicle door control system according to claim 15, characterized in that, The control device is also used to: when the motor temperature prediction result meets the preset first normal working conditions, control the electric door according to the preset first normal control strategy, so as to control the electric door to perform the action corresponding to the door action command input by the user.

17. The electric vehicle door control system according to claim 15, characterized in that, The control device is further configured to: include the following steps: in the normal mode, acquire the working state of the door drive motor; when the working state of the door drive motor is acquired to be a normal stop state, control the electric door according to a preset second normal control strategy, so as to control the electric door to perform the action corresponding to the door action command input by the user.

18. The electric vehicle door control system according to claim 15, characterized in that, The control device is also used to: in the normal mode, acquire the operating status of the door drive motor; when the operating status of the door drive motor is acquired to be a stalled state, control the electric door according to a preset stall control strategy to protect the door drive motor from stalling.

19. The electric vehicle door control system according to claim 15, characterized in that, The control device is the vehicle's central processing module.

20. The electric vehicle door control system according to claim 15, characterized in that, The electric door also includes a control module, a current monitoring module, a timing module, and a door position sensor. The control module is used to control the working state of the door drive motor. The current monitoring module is used to monitor the energizing current data of the door drive motor. The timing module is used to monitor the energizing time data and energizing interval data of the door drive motor. The door position sensor is used to detect the opening and closing angle of the door body.

21. A car, characterized in that, The device includes a memory and a processor, wherein the memory stores a computer program and the processor executes the computer program to implement the electric vehicle door control method as described in any one of claims 1-14.

22. A storage medium having a computer program stored thereon, characterized in that, The computer program is executed by a processor to implement the electric vehicle door control method as described in any one of claims 1-14.

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