Electric door control system and control method, and vehicle

Abstract

An electric door control system, comprising a door switch (110), a door unlocking module (120), a door control module (130) and a central controller (140), the door switch (110), the door unlocking module (120) and the door control module (130) each being connected to the central controller (140). The central controller (140) is used to acquire states of the door unlocking module (120) and the door control module (130) upon receiving a vehicle collision signal and a door opening signal of the door switch (110), and send a door unlocking instruction and a door opening permission instruction to the door unlocking module (120) when the door unlocking module (120) is in a connected state and the door control module (130) is in a disconnected state. The door unlocking module (120) is used to control the electric door to be unlocked and drive the electric door to open by a first distance, when the door unlocking instruction and the door opening permission instruction are received, so that a user can manually pull open the electric door. The invention further relates to a vehicle provided with said control system, and an electric door control method.

Description

Electric door control system and control method, vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to Chinese patent application number 202311117960.1, filed on August 31, 2023, entitled “Electric Door Control System and Control Method, Vehicle,” the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0003] The present disclosure relates to the field of vehicle technology, and in particular to an electric door control system, a vehicle, and an electric door control method. Background Art

[0004] Vehicle collision safety performance has received widespread attention. Vehicle collisions are generally categorized as head-on collisions, side collisions, rear collisions, rollovers, and pedestrian collisions. After a collision, the vehicle's doors must be unlocked to facilitate occupant escape and external rescue efforts. With the rapid development of the new energy vehicle market, domestic and international automakers are investing significant manpower and resources in the research and development of new energy vehicles, including new energy and hybrid vehicles. An increasing number of models are adopting power-operated doors or concealed handles, which place increasing demands on the door's ability to open properly after a collision.

[0005] Compared with traditional car doors, the opening action of electric doors comes from the ejection motor and the unlocking of the door lock motor. The door opening process is more complicated and has higher requirements. However, after a collision, existing cars may have problems with the electric doors being unable to unlock and open normally, causing users to be trapped in the car for a long time, and in serious cases endangering the user's personal safety.

[0006] Public content

[0007] The present disclosure aims to at least partially address one of the technical issues in the related art. To this end, a first objective of the present disclosure is to provide an electric door control system. Upon receiving a door unlock command and a door opening permission command, a door unlocking module controls the electric door to unlock and drive the electric door to open a first distance, allowing a user to manually open the electric door. This solves the problem of unlocking and opening the electric door in collision and extreme collision conditions, and improves the reliability of the electric door in unlocking and opening.

[0008] A second object of the present disclosure is to provide a vehicle.

[0009] The third objective of the present disclosure is to provide an electric door control method.

[0010] To achieve the above-mentioned objectives, an embodiment of the first aspect of the present disclosure proposes an electric door control system, which includes: a door switch, a door unlocking module, a door control module and a central controller, wherein the door switch, the door unlocking module and the door control module are respectively connected to the central controller, wherein the central controller is used to obtain the status of the door unlocking module and the door control module when receiving a vehicle collision signal and a door opening signal of the door switch, and send a door unlocking instruction and a door opening permission instruction to the door unlocking module when the door unlocking module is online and the door control module is offline; the door unlocking module is used to control the unlocking of the electric door when receiving the door unlocking instruction and the door opening permission instruction, and drive the electric door to open a first distance so that the user can manually open the electric door.

[0011] According to the electric door control system of the disclosed embodiment, the central controller is configured to obtain the status of the door unlocking module and the door control module upon receiving a vehicle collision signal and a door opening signal from the door switch. When the door unlocking module is online and the door control module is offline, the central controller sends a door unlocking instruction and a door opening permission instruction to the door unlocking module. Upon receiving the door unlocking instruction and the door opening permission instruction, the door unlocking module controls the electric door to unlock and drive the electric door to open a first distance, allowing the user to manually open the electric door. Thus, the control system can solve the problem of electric door unlocking and opening in collision and extreme collision conditions, and improve the reliability of electric door unlocking and opening.

[0012] In addition, the electric door control system according to the above embodiment of the present disclosure may also have the following additional technical features:

[0013] According to one embodiment of the present disclosure, the door switch is also connected to the door unlocking module, and the door unlocking module is also used to control the electric door to unlock and drive the electric door to open a first distance when receiving the door opening signal, the door unlocking instruction and the door opening permission instruction.

[0014] According to one embodiment of the present disclosure, the central controller is also used to send the door unlocking instruction to the door unlocking module and send the door opening permission instruction to the door control module when both the door unlocking module and the door control module are in an online state; the door unlocking module is also used to control the electric door to unlock when receiving the door unlocking instruction; the door control module is also used to control the electric door to open a second distance when receiving the door opening permission instruction, so as to realize automatic opening of the electric door, wherein the second distance is greater than the first distance.

[0015] According to one embodiment of the present disclosure, the door switch is also connected to the door unlocking module and the door control module respectively, wherein the door unlocking module is also used to control the electric door to unlock when receiving the door opening signal and the door unlocking instruction; the door control module is also used to control the electric door to open a second distance when receiving the door opening signal and the door opening permission instruction.

[0016] According to one embodiment of the present disclosure, the central controller is further used to send a door handle expansion instruction to the door unlocking module when receiving a central control virtual unlocking instruction; the door unlocking module is further used to control the expansion of the door handle when receiving the door handle expansion instruction.

[0017] According to one embodiment of the present disclosure, the door unlocking module is also used to receive the deployment feedback information of the door handle, and when the deployment feedback information is not received or it is determined based on the deployment feedback information that the door handle is not correctly deployed, it continues to control the deployment of the door handle until the door handle is correctly deployed, and controls the door handle to maintain the deployed state.

[0018] According to one embodiment of the present disclosure, the system also includes: a collision controller, and the central controller is also connected to the collision controller, wherein the collision controller is used to obtain the status of the electric door and the vehicle status when receiving the vehicle collision signal, and perform timing, and send the central virtual unlocking instruction to the central controller; the collision controller is also used to send the vehicle collision signal to the central controller after the timing time reaches a preset time, the status of the electric door is locked, the vehicle status is stationary or no vehicle speed signal is received, and the central control virtual unlocking is successful.

[0019] According to one embodiment of the present disclosure, the door unlocking module is also used to send the door unlocking instruction to the door lock motor of the electric door to control the unlocking of the electric door, and obtain the status of the electric door when the number of times the door unlocking instruction is sent reaches a preset number, and stop sending the door unlocking instruction to the door lock motor of the electric door when the state of the electric door is unlocked.

[0020] To achieve the above-mentioned objectives, a vehicle is proposed in a second embodiment of the present disclosure, including the above-mentioned electric door control system.

[0021] According to the vehicle of the embodiment of the present disclosure, by including the above-mentioned electric door control system, it is possible to solve the problem of unlocking and opening the electric door under collision and extreme collision conditions, thereby improving the reliability of unlocking and opening the electric door.

[0022] To achieve the above-mentioned purpose, an embodiment of the third aspect of the present disclosure proposes an electric door control method, which includes: when receiving a vehicle collision signal and a door opening signal, obtaining the status of a door unlocking module and a door control module; when the door unlocking module is in an online state and the door control module is in an offline state, sending a door unlocking instruction and a door opening permission instruction to the door unlocking module, so that the door unlocking module controls the electric door to unlock and drives the electric door to open a first distance so that the electric door can be manually opened.

[0023] According to the electric door control method of the disclosed embodiment, upon receiving a vehicle collision signal and a door opening signal, the status of the door unlocking module and the door control module are obtained. If the door unlocking module is online and the door control module is offline, a door unlocking instruction and a door opening permission instruction are sent to the door unlocking module, causing the door unlocking module to control the electric door unlocking and drive the electric door to open a first distance to facilitate manual opening of the electric door. This method can thus solve the problem of electric door unlocking and opening in collision and extreme collision conditions, and improve the reliability of electric door unlocking and opening.

[0024] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the description of the embodiments with reference to the following drawings, in which:

[0026] FIG1 is a block diagram of an electric door control system according to an embodiment of the present disclosure;

[0027] FIG2 is a schematic diagram of a module flow of an electric door control method according to an embodiment of the present disclosure;

[0028] FIG3 is a block diagram of a vehicle according to an embodiment of the present disclosure;

[0029] FIG4 is a flowchart of a method for controlling an electric door according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0030] The following describes in detail embodiments of the present disclosure, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be construed as limiting the present disclosure.

[0031] The following describes an electric door control system, a vehicle, and an electric door control method according to embodiments of the present disclosure with reference to the accompanying drawings.

[0032] FIG1 is a block diagram of an electric door control system according to an embodiment of the present disclosure.

[0033] As shown in FIG. 1 , the electric door control system may include a door switch 110 , a door unlocking module 120 , a door control module 130 and a central controller 140 .

[0034] The door switch 110, door unlock module 120, and door control module 130 are each connected to a central controller 140. Upon receiving a vehicle collision signal and a door opening signal from the door switch 110, the central controller 140 is configured to obtain the status of the door unlock module 120 and the door control module 130. When the door unlock module 120 is online and the door control module 130 is offline, the central controller 140 sends a door unlock command and a door opening permission command to the door unlock module 120. Upon receiving the door unlock command and the door opening permission command, the door unlock module 120 controls the power door to unlock and open to a first distance, allowing the user to manually open the power door. The first distance can be determined based on actual conditions.

[0035] Specifically, the door switch 110 can be a switch button on the door handle. When the user intends to get off the vehicle and clicks the button, a door opening signal can be generated and sent to the central controller 140 to control the opening of the door. In some embodiments, the door switch 110 can be divided into an outward opening button. The outward opening button is an independent position and can be arranged in the upper area of ​​the vehicle's B-pillar. In addition, if the outward opening button is integrated with a hidden door handle, it can be used by clicking after the door handle pops out. It can also include an inward opening button, which can be arranged at the central control position, the tram door position, etc., and can be clicked by the user (such as the driver and passenger). For ordinary door handles that do not include a switch button, a door opening signal can be generated when the driver or other people pull the door handle.

[0036] The door unlocking module 120 may be a DM (Door module, four-door control module), which may be used to control the usage status of the vehicle's electric doors. For example, the door unlocking module 120 may control the locking and unlocking of the electric doors, and may also control the opening and closing of the windows. In addition, if the door handles configured on the vehicle are hidden door handles, the pop-up and hiding of the door handles may also be controlled. The door control module 130 may be a POD (power operation door, electric operation door), which may drive the ejection motor to drive the door to open. The central controller 140 may be a CEM (Central Electronic Module, central electronic control module), which may adjust and control the parameters of various devices in the vehicle by receiving signals. In an embodiment of the present application, the central controller 140 may receive a vehicle collision signal and send the vehicle collision signal to the door switch 110, the door unlocking module 120 and the door control module 130.

[0037] Upon receiving the vehicle collision signal and the door opening signal from the door switch 110, the central controller 140 can obtain the status of the door unlock module 120 and the door control module 130. The status of the door unlock module 120 and the door control module 130 can include an online state and an offline state. The online state indicates that communication between the door unlock module 120 and the door control module 130 and the central controller 140 is normal, while the offline state indicates that communication between the door unlock module 120 and the door control module 130 and the central controller 140 is not normal. The central controller 140 determines the status of each of the door unlock module 120 and the door control module 130. If the door unlock module 120 is online and the door control module 130 is offline, i.e., communication between the door unlock module 120 and the central controller 140 is normal but communication between the door control module 130 and the central controller 140 is abnormal (e.g., a malfunction in the door control module 130), the central controller 140 can send a door unlock command and a door open permission command to the door unlock module 120. This means that both unlocking and opening of the electric door are controlled by the door unlock module 120. It should be noted that the central controller 140 sends the door unlocking instruction and the door opening permission instruction to the door unlocking module 120, and may send the instructions multiple times within a period of time to prevent the situation where the instructions are not sent successfully.

[0038] When the door unlocking module 120 receives the door unlocking instruction and the door opening permission instruction, it can control the electric door to be unlocked, so that after the electric door is unlocked, the door lock motor can drive the lock tongue to open the electric door to a first distance, so that the user can manually open the electric door. For example, the door lock motor drives the lock tongue to push out a gap of 2 cm, and the user can manually pull the electric door through the gap to open the door.

[0039] Therefore, when the door unlocking module 120 receives the door unlocking instruction and the door opening permission instruction, it controls the electric door to unlock and drives the electric door to open the first distance so that the user can manually open the electric door. This can solve the problem of unlocking and opening the electric door under collision and extreme collision conditions, and improve the reliability of the electric door in unlocking and opening the door.

[0040] According to one embodiment of the present disclosure, the door switch 110 is also connected to the door unlocking module 120, which is further used to control the unlocking of the electric door and drive the electric door to open a first distance when receiving a door opening signal, a door unlocking instruction and a door opening permission instruction.

[0041] Specifically, for safety reasons and to improve the reliability of the power door control system, the door switch 110 needs to be connected to the door unlocking module 120. That is, the door unlocking module 120 needs to consider the current state of the door switch 110 when controlling the vehicle door to unlock. For example, after a vehicle collision, to avoid secondary injury to the driver and passengers, the driver and passengers need to observe the surrounding environment. After determining that the surrounding environment is safe, they can operate the door switch 110. For example, the driver and passengers can click the switch on the door handle (there is an inward opening button on the door handle) to open the power door. For another example, a rescuer can click the switch on the door handle (there is an outward opening button on the exterior door handle) to open the power door. Therefore, when the door unlocking module 120 receives the door opening signal, the door unlocking instruction and the door opening permission instruction, the electric door can be controlled to unlock, so that after the electric door is unlocked, the door lock motor can drive the lock tongue to open the electric door to a first distance, so that the user can manually open the electric door. For example, the door lock motor drives the lock tongue to push out a gap of 1.5 cm, and the user can manually pull the electric door through the gap to open the door.

[0042] In some embodiments, the surrounding environment can also be photographed by the vehicle body camera to determine whether the surrounding environment is safe. In this way, when the surrounding environment is safe, the door opening signal generated after the driver and passenger operate the door switch 110 will be valid to ensure the safety of the driver and passenger. In the case of an unsafe surrounding environment, the door opening signal generated after the driver and passenger operate the door switch 110 will be invalidated so that the car door will not be unlocked or opened.

[0043] According to one embodiment of the present disclosure, the central controller 140 is also used to send a door unlocking instruction to the door unlocking module 120 and a door opening permission instruction to the door control module 130 when both the door unlocking module 120 and the door control module 130 are in an online state; the door unlocking module 120 is also used to control the unlocking of the electric door when receiving the door unlocking instruction; the door control module 130 is also used to control the opening of the electric door to a second distance when receiving the door opening permission instruction, so as to realize automatic opening of the electric door, wherein the second distance is greater than the first distance.

[0044] Specifically, the central controller 140 determines the status of the door unlock module 120 and the door control module 130, respectively. When both the door unlock module 120 and the door control module 130 are online, that is, when both the door unlock module 120 and the door control module 130 are communicating normally with the central controller 140, the central controller 140 may send a door unlock command to the door unlock module 120 and a door opening permission command to the door control module 130. In other words, the door unlock module 120 unlocks the electric door, and the door control module 130 opens the door. It should be noted that the central controller 140 may send the door unlock command to the door unlock module 120 and the door opening permission command to the door control module 130 multiple times within a period of time to prevent the command from being unsuccessfully sent.

[0045] When the door unlocking module 120 receives the door unlocking command, it can control the electric door to unlock. After the electric door is unlocked, and when the door control module 130 receives the door opening permission command, it can control the electric door to open a second distance. For example, the door control module 130 can drive the ejection motor to drive the vehicle door to open the second distance, thereby achieving automatic opening of the electric door. It should be noted that the second distance can be determined according to actual conditions. For example, the second distance for the electric door to open can be set to the distance for a driver or passenger to exit the vehicle normally, or can be set to the maximum opening distance of the vehicle door.

[0046] According to one embodiment of the present disclosure, the door switch 110 is also connected to the door unlocking module 120 and the door control module 130, respectively, wherein the door unlocking module 120 is also used to control the electric door to unlock when receiving a door opening signal and a door unlocking instruction; the door control module 130 is also used to control the electric door to open a second distance when receiving a door opening signal and a door opening permission instruction.

[0047] Specifically, for safety reasons and to improve the reliability of the electric door control system, the door switch 110 needs to be connected to the door unlocking module 120 and the door control module 130. That is, the door unlocking module 120 needs to consider the current state of the door switch 110 when controlling the vehicle door to unlock, and the door control module 130 needs to consider the current state of the door switch 110 when controlling the electric door to open. For example, after a vehicle collision, to prevent secondary injuries to the driver and passengers, the driver and passengers need to observe the surrounding environment. After determining that the surrounding environment is safe, they can operate the door switch 110. For example, the driver and passengers can click the switch on the door handle (there is an inward opening button on the interior door handle) to open the electric door. For another example, a rescuer can click the switch on the door handle (there is an outward opening button on the exterior door handle) to open the electric door. Therefore, when the door unlocking module 120 receives the door opening signal and the door unlocking instruction, the electric door can be controlled to unlock. After the electric door is unlocked, when the control module receives the door opening signal and the door opening permission instruction, the electric door can be controlled to open a second distance. For example, the door control module 130 can drive the ejection motor to drive the car door to open the second distance, thereby realizing automatic opening of the electric door.

[0048] In some embodiments, the surrounding environment can also be photographed by the vehicle body camera to determine whether the surrounding environment is safe. In this way, when the surrounding environment is safe, the door opening signal generated after the driver and passenger operate the door switch 110 will be valid to ensure the safety of the driver and passenger. In the case of an unsafe surrounding environment, the door opening signal generated after the driver and passenger operate the door switch 110 will be invalidated so that the car door will not be unlocked or opened.

[0049] According to one embodiment of the present disclosure, the central controller 140 is also used to send a door handle deployment instruction to the door unlocking module 120 when receiving a central control virtual unlocking instruction; the door unlocking module 120 is also used to control the deployment of the door handle when receiving the door handle deployment instruction.

[0050] Specifically, upon receiving a virtual unlock command from the central control, the central controller 140 is further configured to send a door handle deployment command to the door unlock module 120. The virtual unlock command from the central control may be received by the central controller 140 upon determining that the vehicle has collided, thereby sending the door handle deployment command to the door unlock module 120. When the door unlock module 120 also receives the door handle deployment command, it may control the door handle to deploy, facilitating operation by the driver or passengers, or, after a collision, allowing rescue personnel to open the door outside the vehicle and rescue the occupants.

[0051] In some embodiments, the door handle is a concealed door handle. If the door handle fails to deploy in time after a vehicle collision, the driver or rescue personnel may miss the optimal escape and rescue time if the electric door cannot be opened in time. Therefore, upon receiving a virtual unlock command from the central control, the door handle is controlled to deploy by the door unlocking module 120. After the concealed door handle is deployed, the electric door can be opened manually or by triggering a capacitive switch, depending on the type of door handle. In addition, for concealed door handles, only after the handle is deployed can the switch on the door handle be clicked to generate a door opening signal, allowing the electric door to open normally.

[0052] According to one embodiment of the present disclosure, the door unlocking module 120 is also used to receive the unfolding feedback information of the door handle, and when no unfolding feedback information is received or it is determined based on the unfolding feedback information that the door handle is not correctly unfolded, it continues to control the unfolding of the door handle until the door handle is correctly unfolded, and controls the door handle to remain in the unfolded state.

[0053] Specifically, after the door unlock module 120 controls the door handle to deploy, the door handle will provide feedback to the door unlock module 120 indicating whether it has been deployed. This allows the door unlock module 120 to receive the deployment feedback information and determine the current deployment status of the door handle based on the deployment feedback information. In other words, upon receiving the door handle deployment instruction and controlling the door handle to deploy, the door unlock module 120 may not deploy the door handle successfully the first time, or may not deploy it to the correct position. Therefore, if the door unlock module 120 fails to receive the deployment feedback information or determines based on the deployment feedback information that the door handle has not been deployed correctly, it can continue to control the door handle deployment until it is correctly deployed, thereby improving the reliability of door handle deployment control in the event of a vehicle collision. Correct deployment of the door handle means that the door handle has been deployed to the correct position, i.e., the maximum position to which the vehicle's door handle can be deployed when it leaves the factory.

[0054] If the door handle is unfolded, there is no need to send a door handle unfolding instruction to the door unlocking module 120, indicating that the current door handle has been unfolded, and the door unlocking module 120 no longer controls the door handle to unfold.

[0055] In addition, after the door handle is correctly unfolded, the door handle can be controlled to remain in the unfolded state so that the user or others can operate the door handle, such as manually pulling the door handle, or touching the capacitive switch on the door handle to open the electric door.

[0056] According to one embodiment of the present disclosure, the power door control system may further include a collision controller, to which the central controller 140 is further connected. The collision controller is configured to, upon receiving a vehicle collision signal, obtain the power door and vehicle status, perform timing, and send a central virtual unlock command to the central controller 140. The collision controller is further configured to send a vehicle collision signal to the central controller 140 when the timing reaches a preset time, the power door is locked, the vehicle is stationary, or no speed signal is received, and the central control virtual unlock is successful. The preset time can be determined based on actual conditions.

[0057] Specifically, the electric door control system may also include an ACU (Auto Controlled Unite, collision controller), and the central controller 140 is connected to the collision controller. In some embodiments, the collision controller may also be a car collision sensor. After the vehicle is hit by a collision, the collision controller may obtain the status of the electric door and the vehicle status upon receiving a vehicle collision signal. The vehicle collision signal may be a signal generated by the vehicle when a collision occurs. For example, in some embodiments, the vehicle collision signal may be issued by the car collision sensor, that is, when the vehicle is involved in a frontal, side, or rear collision, a rollover, or a pedestrian collision, the car collision sensor may issue a vehicle collision signal based on the intensity of the collision that occurred. The status of the electric door may include a locked state (such as half-locked or fully locked) and an unlocked state, and the status of the vehicle may include a stationary state, a moving state, etc. And when the vehicle collision signal is received, timing is performed and a central virtual unlocking command is sent to the central controller 140.

[0058] When the timing reaches a preset time (for example, the preset time can be set to 10 seconds), the collision controller can send a vehicle collision signal to the central controller 140 when the timing reaches 10 seconds, the power door is in a locked state (half locked or fully locked), the vehicle is in a stationary state or no vehicle speed signal is received (the vehicle is deemed to be in a stationary state), and the central control virtual unlock is successful. The purpose of setting the preset time to 10 seconds is to reduce or avoid rollover-type traffic accidents that trigger the power door to open inside or outside the vehicle. The associated vehicle speed signal is mainly used to avoid the situation where the door is opened while the vehicle is in motion and the driver and passengers are thrown out. In some embodiments, the collision controller can directly send a vehicle collision signal to the central controller 140 when it receives the vehicle collision signal.

[0059] In an embodiment of the present application, the transmission method of the vehicle collision signal between the collision controller and the central controller 140 includes wired transmission and / or wireless transmission. Wired transmission may include using a PWM (Pulse Width Modulation) signal to send the vehicle collision signal. Wireless transmission may include using a CAN network (Controller Area Network) to send the vehicle collision signal. During use, when the collision controller sends the vehicle collision signal to the central controller 140, wired transmission and wireless transmission may be used simultaneously, and the two methods may serve as backup and redundancy for each other.

[0060] According to one embodiment of the present disclosure, the door unlocking module 120 is further configured to send a door unlocking command to the door lock motor of the electric door to control unlocking of the electric door, obtain the state of the electric door when the door unlocking command has been sent a preset number of times, and stop sending the door unlocking command to the door lock motor of the electric door when the electric door is unlocked. The preset number of times can be determined based on actual conditions.

[0061] Specifically, the door unlocking module 120 is further configured to send a door unlocking command to the door lock motor of the electric door, so that upon receiving the door unlocking command, the door lock motor can control the electric door to unlock. For example, when the electric door is in a locked state, upon receiving the unlocking command, the electric door can be unlocked, so that the electric door can be automatically unlocked in the event of a vehicle collision. Therefore, in the event of a vehicle collision, the door needs to be unlocked to facilitate the driver and passengers to open the door and leave the accident scene to avoid other injuries, or to facilitate rescue personnel to rescue the driver and passengers in the vehicle.

[0062] In some embodiments, the door unlock command may be sent at a preset frequency, for example, at intervals of 2 seconds, to the door lock motor of the electric door. The preset number of times is a preset number. When the door unlock command is sent the preset number of times, the state of the electric door is obtained, where the state of the electric door refers to whether the electric door is currently locked or unlocked. In some embodiments, the preset number of times can be set to 2, and when the door unlock command is sent 3 times, the state of the electric door can be obtained through the door unlock module 120. Alternatively, the preset number of times can be set to 3, and when the door unlock command is sent 4 times, the state of the electric door can be obtained through the door unlock module 120.

[0063] Among them, in order to prevent the vehicle door lock switch from accidentally triggering the unlock state and the locked state, a preset number of times is set. When the number of times the door unlock command is sent is greater than the preset number, the current state of the door is obtained to control the door more accurately and reliably.

[0064] When the electric door is in the unlocked state, the door unlock module 120 may stop sending door unlock commands to the electric door lock motor. The unlocked state may mean that an occupant or rescuer can directly open the electric door. For example, in some embodiments, the unlocked state of the electric door may include the electric door lock switch being turned on and the electric door handle being ejected. Stopping sending door unlock commands to the electric door lock motor means that when the door unlock module 120 is in the unlocked state and the door unlock command has been sent more than a preset number of times, the door unlock module 120 no longer needs to send door unlock commands to the electric door lock motor.

[0065] In addition, if the current state of the electric door is locked, the door unlocking command can be continuously sent to the door lock motor of the electric door to unlock the electric door. In some embodiments, in order to ensure the service life of the door lock motor, the number of times the door unlocking command is sent can be set to 10 times.

[0066] In some embodiments, in order to ensure the normal operation of the door switch 110, the door unlock module 120, the door control module 130, and the central controller 140, to prevent the normal operation of each module in the event of a main power outage, and to improve the redundancy of the electric door control system, a backup power supply may be used for power supply. The main power supply is the power supply connected to the door switch 110, the door unlock module 120, the door control module 130, and the central controller 140. The power supply status of the main power supply includes a normal state and an abnormal state. The normal state may refer to a smooth connection between the main power door switch 110, the door unlock module 120, the door control module 130, and the central controller 140, and the abnormal state may refer to a disconnection between the main power supply and the door switch 110, the door unlock module 120, the door control module 130, and the central controller 140. In an embodiment of the present application, the power supply status of the main power supply can be determined by a voltage detection device connected between the main power supply and the door switch 110, the door unlocking module 120, the door control module 130, and the central controller 140. When the vehicle collides or in some other scenarios, the main power supply is unable to supply power, and the backup power supply is used to supply power. In some embodiments, the main power supply and the backup power supply can be independent power supplies. In some embodiments, in order to reduce costs while ensuring that the electric door can be unlocked normally and reliably, the backup power supply can also be connected only to the door unlocking module 120 and the door control module 130, thereby ensuring the execution of the unlocking and opening actions of the electric vehicle door.

[0067] As a specific example, referring to FIG2 , when controlling an electric door, the following steps may be included:

[0068] The collision signal can be transmitted to the collision controller ACU through the CAN network; the collision controller ACU continuously sends the collision signal to the central controller CEM through the PWM hard line and the CAN network for 4 seconds, and when a collision signal occurs, preconditions are required: that is, obtaining the status of the electric door and the vehicle status, and timing, and sending a central virtual unlocking instruction to the central controller CEM. The collision controller ACU sends a vehicle collision signal to the central controller CEM after the timing time reaches the preset time, the status of the electric door is locked, the vehicle status is stationary or no speed signal is received, and the central control virtual unlocking is successful.

[0069] The central controller CEM continuously sends a collision signal to the door unlocking module DM through the CAN network for 10 seconds. When the central controller CEM restarts due to a voltage drop, it still sends a vehicle collision signal. The central door controller CEM determines whether the door unlocking module DM and the door control module POD are online, and continuously sends a collision unlocking signal for 10 seconds and a signal to drive the door handle to deploy for 10 seconds.

[0070] The unlocking module DM drives the door lock motor for a single 200 millisecond period, at least three times, for a total of 10 times. The first three times are independent of the door lock motor's status, while the last seven times are. The door unlocking module DM can drive the vehicle's door lock motor to open and the vehicle's door handle to pop out or flip. The door unlocking module DM receives door handle deployment feedback and, if it fails to receive deployment feedback or determines based on the deployment feedback that the door handle is incorrectly deployed, continues to control the door handle's deployment until it is correctly deployed and maintains the deployed state. While the door handle is deployed, the user can activate the door switch by pulling the door handle or clicking a capacitive switch on the door handle, sending a door opening signal to the central controller (CEM), the door unlocking module DM, and the door control module (POD).

[0071] When the door unlock module DM is online and the door control module POD is offline (not online), a door unlock command and a door opening permission command are sent to the door unlock module DM. When the door unlock module DM receives the door opening signal, the door unlock command, and the door opening permission command, it controls the electric door to unlock (if the door lock is currently in a half-locked or fully locked state) and drives the electric door to open a first distance (by driving the lock tongue through a gap through the door lock motor) so that the user can manually open the electric door (corresponding to the dotted line in Figure 2). In addition, after the door handle pops out, the door can also be opened from outside the vehicle by pulling the door handle.

[0072] When the door unlocking module DM is in online state and the door control module POD is in online state, a door unlocking instruction is sent to the door unlocking module DM, and a door opening permission instruction is sent to the door control module POD. When the door unlocking module receives the door unlocking instruction, it controls the electric door to unlock (such as the door lock is currently in a half-locked or fully locked state); the door control module DM is also used to control the electric door to open a second distance (the ejection motor drives the car door to open) when it receives the door opening permission instruction, so as to realize automatic opening of the electric door.

[0073] Among them, the 12V main battery is connected to the collision controller ACU, the central controller CEM, the door unlocking module DM, the door control module POD, the door switch, the door lock motor, the ejector motor and the vehicle door handle, and the 12V backup battery is connected to the central controller CEM, the door unlocking module DM, the door control module POD, the door switch, the door lock motor, the ejector motor and the vehicle door handle, so that when the 12V main battery fails to supply power, the 12V backup battery is used to supply power, thereby improving the redundancy of the electric door control system.

[0074] In summary, according to the vehicle power door control system of the disclosed embodiment, the central controller is configured to obtain the status of the door unlocking module and the door control module upon receiving a vehicle collision signal and a door opening signal from the door switch. When the door unlocking module is online and the door control module is offline, the central controller sends a door unlocking instruction and a door opening permission instruction to the door unlocking module. Upon receiving the door unlocking instruction and the door opening permission instruction, the door unlocking module controls the unlocking of the power door and drives the power door to open a first distance, allowing the user to manually open the power door. As a result, the control system can address the unlocking and opening issues of the power door in collision and extreme collision conditions, improving the reliability of the power door unlocking and opening.

[0075] Corresponding to the above embodiments, the present disclosure also proposes a vehicle.

[0076] As shown in FIG. 3 , a vehicle 200 according to an embodiment of the present disclosure may include a power door control system 100 .

[0077] According to the vehicle of the embodiment of the present disclosure, by including the above-mentioned electric door control system, it is possible to solve the problem of unlocking and opening the electric door under collision and extreme collision conditions, thereby improving the reliability of unlocking and opening the electric door.

[0078] Corresponding to the above embodiment, the present disclosure also proposes an electric door control method.

[0079] As shown in FIG4 , in one embodiment, the electric door control method includes the following steps:

[0080] S1, when receiving a vehicle collision signal and a door opening signal, obtaining the status of the door unlocking module and the door control module.

[0081] S2, when the door unlocking module is in an online state and the door control module is in an offline state, sends a door unlocking instruction and a door opening permission instruction to the door unlocking module, so that the door unlocking module controls the electric door to unlock and drives the electric door to open a first distance so that the electric door can be manually opened.

[0082] It should be noted that for details not disclosed in the electric door control method of the embodiment of the present disclosure, please refer to the details disclosed in the electric door control system of the embodiment of the present disclosure, and the details will not be repeated here.

[0083] In summary, the electric door control method according to the disclosed embodiment obtains the status of the door unlocking module and the door control module upon receiving a vehicle collision signal and a door opening signal. When the door unlocking module is online and the door control module is offline, a door unlocking instruction and a door opening permission instruction are sent to the door unlocking module, causing the door unlocking module to control the electric door unlocking and drive the electric door to open a first distance, allowing the electric door to be manually opened. This method thus solves the problem of electric door unlocking and opening in collision and extreme collision conditions, and improves the reliability of electric door unlocking and opening.

[0084] It should be noted that the logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (e.g., a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device). For purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection with one or more wires (electronic device), a portable computer disk cartridge (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and programmable read-only memory (EPROM or flash memory), fiber optic devices, and portable compact disc read-only memory (CDROM). Furthermore, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing it in another suitable manner if necessary, and then storing it in a computer memory.

[0085] It should be understood that various parts of the present disclosure can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used to implement: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0086] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0087] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Throughout the present disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0088] In this disclosure, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise expressly limited. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0089] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are illustrative and are not to be construed as limitations on the present disclosure. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present disclosure.

Claims

1. An electric door control system, the system comprising: A door switch, a door unlocking module, a door control module and a central controller, wherein the door switch, the door unlocking module and the door control module are respectively connected to the central controller, wherein: The central controller is used to obtain the status of the door unlocking module and the door control module when receiving the vehicle collision signal and the door opening signal of the door switch, and send a door unlocking instruction and a door opening permission instruction to the door unlocking module when the door unlocking module is in an online state and the door control module is in an offline state; The door unlocking module is used to control the electric door to unlock when receiving the door unlocking instruction and the door opening permission instruction, and drive the electric door to open a first distance so that a user can manually open the electric door.

2. The system according to claim 1, wherein: The door switch is also connected to the door unlocking module, and the door unlocking module is also used to control the electric door to unlock and drive the electric door to open a first distance when receiving the door opening signal, the door unlocking instruction and the door opening permission instruction.

3. The system according to claim 1 or 2, wherein: The central controller is also used to send the door unlocking instruction to the door unlocking module and send the door opening permission instruction to the door control module when both the door unlocking module and the door control module are in an online state; The door unlocking module is also used to control the electric door to unlock when receiving the door unlocking instruction; The door control module is also used to control the electric door to open a second distance when receiving the door opening permission instruction, so as to realize automatic opening of the electric door, wherein the second distance is greater than the first distance.

4. The system according to claim 3, wherein: The door switch is also connected to the door unlocking module and the door control module respectively, wherein: The door unlocking module is also used to control the electric door to unlock when receiving the door opening signal and the door unlocking instruction; The door control module is also used to control the electric door to open a second distance when receiving the door opening signal and the door opening permission instruction.

5. The system according to any one of claims 1 to 4, wherein: The central controller is also used to send a door handle deployment instruction to the door unlocking module when receiving a central control virtual unlocking instruction; The door unlocking module is further configured to control the door handle to unfold when receiving the door handle unfolding instruction.

6. The system according to claim 5, wherein: The door unlocking module is also used to receive deployment feedback information of the door handle, and when the deployment feedback information is not received or it is determined based on the deployment feedback information that the door handle is not correctly deployed, continuously control the door handle to be deployed until the door handle is correctly deployed, and control the door handle to remain in the deployed state.

7. The system according to claim 5 or 6, wherein: The system further comprises: a collision controller, and the central controller is also connected to the collision controller, wherein: The collision controller is used to obtain the state of the electric door and the vehicle state, perform timing, and send the central virtual unlocking instruction to the central controller when receiving the vehicle collision signal; The collision controller is also used to send the vehicle collision signal to the central controller when the timing time reaches a preset time, the electric door is in a locked state, the vehicle is in a stationary state or no vehicle speed signal is received, and the central control virtual unlocking is successful.

8. The system according to any one of claims 1 to 7, wherein: The door unlocking module is also used to send the door unlocking instruction to the door lock motor of the electric door to control the unlocking of the electric door, and when the number of times the door unlocking instruction is sent reaches a preset number, obtain the state of the electric door, and when the state of the electric door is unlocked, stop sending the door unlocking instruction to the door lock motor of the electric door.

9. A vehicle comprising the electric door control system according to any one of claims 1-8.

10. A method for controlling an electric door, the method comprising: Upon receiving a vehicle collision signal and a door opening signal, obtaining the status of a door unlocking module and a door control module; When the door unlocking module is in an online state and the door control module is in an offline state, a door unlocking instruction and a door opening permission instruction are sent to the door unlocking module, so that the door unlocking module controls the electric door to unlock and drives the electric door to open a first distance so that the electric door can be manually opened.

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