Vehicle door handle control methods, systems, electronic equipment, and vehicles
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-17
- Publication Date
- 2026-08-14
AI Technical Summary
[0004]本申请提供了一种车辆门把手的控制方法、系统、电子设备及车辆,以解决隐藏式门把手在低温环境下被冻住而无法开启的问题
获取表征车辆门把手的环境温度的温度相关信息,能够为低温判断提供数据基础,且采用“温度相关信息”的上位表述,可灵活适配多种温度检测方式,降低对特定传感器类型的依赖;根据温度相关信息,确定当前环境温度,能够实时感知门把手所处环境的温度状况,为后续的低温判断和电子锁控制提供准确的依据;当当前环境温度低于预设温度阈值时,控制车辆门把手的电子锁解锁,能够在门把手表面液体尚未结冰或刚刚达到结冰临界点时,预先将电子锁解锁,从而避免电子锁在低温下因结冰而无法动作的风险。相比于现有技术中通过加热装置进行物理解冻的方式,本方案无需额外增设加热元件,不消耗额外电能,以更低的成本和更高的可靠性解决了低温环境下隐藏式门把手无法开启的问题;响应于车辆解锁信号,控制车辆门把手所在的车门打开,车辆解锁信号包括机械解锁信号,能够使车门开启动作由纯机械锁完成,充分发挥机械锁在低温环境下可靠性高的优势,确保用户在电子锁已预先解锁后,只需通过常规的机械解锁方式即可正常开门,进一步提升了低温场景下开门操作的确定性和用户体验。
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Figure CN122565336A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicle technology, specifically to methods, systems, electronic devices, and vehicles for controlling vehicle door handles. Background Technology
[0002] In related technologies, car door handles are mainly divided into three categories. The first category is the traditional mechanical door handle, which opens the door by physically pulling it. It has a simple and reliable structure, but it has greater wind resistance and a more traditional appearance. The second category is the semi-concealed door handle, where part of the mechanism is embedded in the door. It combines mechanical reliability and electronic functions, but there is still room for improvement in aesthetics and wind resistance. The third category is the concealed door handle, which is hidden inside the door to reduce wind resistance and enhance aesthetics when the vehicle is in motion, and pops out through an electronically driven mechanism when the door needs to be opened.
[0003] However, concealed door handles have a significant drawback in practical use: in low-temperature environments, the liquid covering the handle surface easily freezes, causing the handle's drive mechanism to become frozen and unable to pop out properly. When the electronic drive mechanism malfunctions due to freezing, the user cannot open the door electronically, and because concealed door handles lack exposed physical pulling structures, the user also cannot open the door manually, creating a safety hazard as the door cannot be opened. Furthermore, in the event of a vehicle power failure, the electronic drive mechanism of the concealed door handle will also malfunction, further increasing the risk of the door remaining locked. Summary of the Invention
[0004] This application provides a method, system, electronic device, and vehicle for controlling a vehicle door handle, in order to solve the problem that concealed door handles freeze and cannot be opened in low-temperature environments.
[0005] In a first aspect, this application provides a method for controlling a vehicle door handle, the method being executed on a controller of the vehicle door handle, the method comprising: Obtain temperature-related information characterizing the ambient temperature of the vehicle door handle; Determine the current ambient temperature based on temperature-related information; When the current ambient temperature is lower than a preset temperature threshold, the electronic lock controlling the vehicle door handle unlocks; In response to a vehicle unlock signal, the door with the door handle is controlled to open. The vehicle unlock signal includes a mechanical unlock signal.
[0006] In one alternative implementation, controlling the electronic lock unlocking of the vehicle door handle includes: The voltage signal output by the temperature sensor installed in the vehicle door handle is compared with a preset reference voltage, which corresponds to a preset temperature threshold. If the voltage signal is greater than the preset reference voltage, a high-level signal is output to wake up the controller; The controller, after being woken up, sends an unlocking command to the drive circuit of the electronic lock to control the unlocking of the electronic lock.
[0007] In one alternative implementation, the method further includes: Obtain the power supply voltage of the controller; When the supply voltage is lower than the first voltage threshold, the electronic lock is unlocked. When the supply voltage is higher than the second voltage threshold, it enters a sleep protection state.
[0008] In one alternative implementation, the method further includes: Receive abnormal status signals, which include at least one of the following: water ingress signal, smoke signal, high temperature signal, drop signal, or impact signal; In response to an abnormal status signal, the electronic lock is unlocked, allowing the door to be opened directly.
[0009] In one alternative embodiment, the temperature sensor is a thin-film temperature sensor, which is fitted into the interior of the door handle.
[0010] In one alternative implementation, the vehicle unlock signal may also include a wireless unlock signal emitted by the car key and a wireless unlock signal emitted by a mobile terminal application.
[0011] Secondly, this application provides a control system for a vehicle door handle, the system comprising: A temperature sensor, installed in the vehicle door handle, is used to collect temperature signals; The controller, connected to the temperature sensor, is used to determine the current ambient temperature of the vehicle door handle based on the temperature signal, and to generate an electronic lock unlocking command when the current ambient temperature is lower than a preset temperature threshold. The drive circuit is connected to the electronic lock of the controller and the door handle. The drive circuit is used to drive the electronic lock to unlock in response to the electronic lock unlocking command. The controller is also used to control the door to open in response to a received vehicle unlocking signal, which includes a mechanical unlocking signal.
[0012] Thirdly, this application provides an electronic device, including: a memory and a processor, which are communicatively connected to each other. The memory stores computer instructions, and the processor executes the computer instructions to perform the vehicle door handle control method of the first aspect or any corresponding embodiment described above.
[0013] Fourthly, this application provides a vehicle, which includes a controller, the controller including a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the computer instructions to cause the computer to perform the vehicle door handle control method of the first aspect or any corresponding embodiment described above.
[0014] Fifthly, this application provides a computer-readable storage medium storing computer instructions for causing a computer to execute the vehicle door handle control method of the first aspect or any corresponding embodiment described above.
[0015] According to the vehicle door handle control method provided in this application, the following beneficial technical effects can be achieved compared with the prior art: Obtaining temperature-related information characterizing the ambient temperature of the vehicle door handle provides a data foundation for low-temperature judgment. Furthermore, the use of the higher-level term "temperature-related information" allows for flexible adaptation to various temperature detection methods, reducing reliance on specific sensor types. Based on this information, the current ambient temperature can be determined, enabling real-time sensing of the temperature conditions around the door handle and providing accurate data for subsequent low-temperature judgment and electronic lock control. When the current ambient temperature is below a preset temperature threshold, the electronic lock on the vehicle door handle can be unlocked before the liquid on the door handle surface freezes or just reaches the freezing point, thus avoiding the risk of the electronic lock failing to operate due to freezing at low temperatures. Compared to existing technologies that use heating devices for physical defrosting, this solution eliminates the need for additional heating elements and consumes no extra power. It solves the problem of concealed door handles failing to open in low-temperature environments with lower cost and higher reliability. Responding to the vehicle unlocking signal, it controls the opening of the door where the door handle is located. The vehicle unlocking signal includes a mechanical unlocking signal, enabling the door opening action to be completed by a purely mechanical lock. This fully leverages the high reliability of mechanical locks in low-temperature environments, ensuring that users can open the door normally using the conventional mechanical unlocking method after the electronic lock has been pre-unlocked. This further improves the certainty of door opening operations and the user experience in low-temperature scenarios.
[0016] In summary, this application, through a dual guarantee mechanism of "low-temperature pre-unlocking electronic lock + mechanical lock final opening," effectively solves the problem of hidden door handles being unable to open due to freezing in low-temperature environments at extremely low cost without the need for physical heating of the door handle. At the same time, it reduces the overall vehicle energy consumption and improves the user experience. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 This is a flowchart of a vehicle door handle control method according to an embodiment of this application; Figure 2 This is a comparative schematic diagram of a vehicle unlocking process according to an embodiment of this application; Figure 3 This is a schematic diagram of a vehicle door handle control system according to an embodiment of this application; Figure 4 This is a schematic diagram of a controller configuration for a vehicle door handle according to an embodiment of this application; Figure 5 This is a schematic diagram of the hardware structure of an electronic device according to an embodiment of this application. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0020] It is understood that before using the technical solutions disclosed in the various embodiments of this application, users should be informed of the types, scope of use, and usage scenarios of the personal information involved in this application in an appropriate manner in accordance with relevant laws and regulations, and user authorization should be obtained.
[0021] 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 indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0022] This application provides a method, system, electronic device, and vehicle for controlling a vehicle door handle, aiming to solve the technical problem in related technologies where concealed door handles fail to eject due to icing in low-temperature environments, thus preventing the door from opening. While concealed door handles in related technologies can reduce wind resistance and improve aesthetics, liquids on the surface and inside gaps of the door handle easily freeze in low-temperature rain, snow, or after a car wash, causing the electronic drive mechanism to freeze and malfunction. Existing solutions often use methods such as increasing motor torque or adding heating devices to break the ice, but these methods suffer from high costs, high energy consumption, and unsatisfactory results. This application addresses this problem by acquiring the ambient temperature and pre-unlocking the electronic lock in low-temperature conditions, allowing the door to open ultimately through a mechanical lock without the door handle ejecting. This solves the problem of concealed door handles failing to open in low-temperature environments in a low-cost and highly reliable manner, without requiring additional heating elements.
[0023] According to an embodiment of this application, a method for controlling a vehicle door handle is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.
[0024] This embodiment provides a method for controlling a vehicle door handle, which can be used in a vehicle door handle controller. Figure 1 This is a flowchart of a vehicle door handle control method according to an embodiment of this application, such as... Figure 1 As shown, the process includes the following steps: Step S101: Obtain temperature-related information that characterizes the ambient temperature of the vehicle door handle.
[0025] Specifically, ambient temperature refers to the temperature of the external space where the vehicle door handle is located, i.e., the air temperature around the door handle. This temperature directly affects whether icing will occur on the surface and inside of the door handle. Temperature-related information refers to data that can directly or indirectly reflect the ambient temperature, such as the voltage signal or resistance value output by a temperature sensor, or the digital temperature value obtained after analog-to-digital conversion. It can also be ambient temperature data obtained from other modules in the vehicle via the Controller Area Network (CAN) bus. Optionally, in this embodiment, temperature-related information is collected by a thin-film temperature sensor that is attached to and installed inside the door handle.
[0026] This step obtains temperature-related information to provide a data foundation for subsequent low-temperature judgment. By using "temperature-related information" rather than limiting it to a specific type of temperature value, it can flexibly adapt to various temperature detection methods and is not limited to a certain specific temperature-related value, thereby reducing dependence on specific sensor types and improving the applicability of the solution.
[0027] In one possible implementation, a thin-film temperature sensor can be installed inside the vehicle door handle. This sensor is connected to an analog-to-digital converter pin of the controller, which reads the voltage signal output by the sensor through this pin as temperature-related information characterizing the ambient temperature. The sensor can periodically acquire temperature signals, with the acquisition period set to 500ms, 1s, or other time intervals depending on power consumption requirements. The thin-film temperature sensor is attached to the inner wall of the door handle housing, accurately reflecting the actual temperature of the door handle body and avoiding measurement delays or inaccuracies caused by air gaps between the sensor and the door handle.
[0028] Step S102: Determine the current ambient temperature based on temperature-related information.
[0029] Specifically, the current ambient temperature refers to the processed or converted ambient temperature value used for comparison with a preset temperature threshold. It can be a specific temperature value or a temperature status judgment result obtained after comparison. For example, after the controller reads the voltage signal output by the temperature sensor, it calculates the temperature value in degrees Celsius based on the preset correspondence between voltage and temperature. The determination of the current ambient temperature can be completed by the controller through software calculation, or the hardware comparator can directly output the comparison result (i.e., only output the conclusion of "whether it is below the threshold" without outputting the specific temperature value).
[0030] This step processes temperature-related information, transforming the raw signal into a temperature judgment criterion that can be used for decision-making, thus providing accurate input conditions for triggering the subsequent low-temperature unlocking logic.
[0031] In one possible implementation, the temperature sensor is a negative temperature coefficient thermistor, whose resistance increases as the temperature decreases, and the voltage signal output to the controller changes accordingly. The controller internally stores a voltage-temperature correspondence table, and converts the read voltage value into the corresponding temperature value as the current ambient temperature by looking up the table.
[0032] In another possible implementation, the voltage signal output by the temperature sensor is directly input to a voltage comparator for comparison with a preset reference voltage. The high or low level signal output by the comparator indicates whether the current ambient temperature is lower than the threshold. The controller does not need to perform temperature value conversion, thus simplifying the processing flow.
[0033] Step S103: When the current ambient temperature is lower than the preset temperature threshold, control the electronic lock of the vehicle door handle to unlock.
[0034] Specifically, the preset temperature threshold refers to a pre-set critical temperature value used to determine whether the ambient temperature has reached a level where icing is possible. It can be set to 0 degrees Celsius, or flexibly adjusted according to factors such as the climate conditions and altitude of the area where the vehicle is used, for example, set to -2℃ or 1℃. An electronic lock is a locking mechanism installed inside the door handle that uses electricity to unlock and lock. It is typically driven by a motor, electromagnet, or similar actuator to move the bolt. In contrast to purely mechanical locks, electronic locks rely on power supply and control signals for operation.
[0035] When the ambient temperature drops to the freezing point (e.g., 0°C), the controller proactively unlocks the electronic lock before it freezes, ensuring normal operation. Once pre-unlocked, the electronic lock remains in the unlocked state. Even if the temperature subsequently drops further, causing ice to form on the door handle surface and inside, the electronic lock will not need to operate again while frozen, thus avoiding the risk of it malfunctioning due to icing. This solution eliminates the need for additional heating elements and consumes no extra power, solving the problem of electronic lock failure in low-temperature environments with extremely low cost and higher reliability.
[0036] In one possible implementation, the preset temperature threshold is 0℃, and the preset reference voltage corresponds to the output voltage value of the temperature sensor at 0℃. The output terminal of the temperature sensor is connected to the first input terminal of a voltage comparator, the second input terminal of the voltage comparator is connected to the preset reference voltage, and the output terminal of the voltage comparator is connected to the wake-up pin of the controller. When the ambient temperature is higher than 0℃, the output voltage of the temperature sensor is lower than the preset reference voltage, the voltage comparator outputs a low level, and the controller remains in sleep mode. When the ambient temperature is lower than 0℃, the output voltage of the temperature sensor is higher than the preset reference voltage, the voltage comparator outputs a high level, and this high-level signal wakes the controller from sleep mode via the wake-up pin. After being woken up, the controller sends an unlock command to the drive circuit of the electronic lock, and the drive circuit drives the electronic lock to unlock.
[0037] Step S104: In response to the vehicle unlocking signal, control the door where the vehicle door handle is located to open. The vehicle unlocking signal includes a mechanical unlocking signal.
[0038] Specifically, a vehicle unlock signal refers to the command signal issued by the user to trigger the door to open. This signal can come from various sources, such as the remote key, a mobile application (APP), or a touch sensor on the door handle. The vehicle unlock signal generated after the user's operation is processed by the controller to execute the door opening action. A mechanical unlock signal refers to an unlock command transmitted through a purely mechanical structure, without relying on any electrical or electronic control. For example, the mechanical linkage signal triggered when the user presses the unlock button on the remote key, or the electrical signal forwarded by the body controller to the door handle controller after the unlock command is issued by the mobile APP. The final actuator triggered by this signal is a purely mechanical lock. When the electronic lock is pre-unlocked, the user issues a vehicle unlock signal via the car key or mobile APP, which triggers the purely mechanical lock to complete the final door opening action.
[0039] This step, by entrusting the final opening action of the car door to the mechanical lock, fully leverages the advantages of mechanical locks, such as their unaffected by icing and high reliability in low-temperature environments. With the electronic lock pre-unlocked, the user can simply open the door normally using a conventional mechanical unlocking method (such as pressing the remote key button), without needing the door handle actuator to pop out in low temperatures. This avoids the problem of the door handle being frozen and unable to pop out, improving the certainty of door opening operations and the user experience in low-temperature scenarios.
[0040] In one possible implementation, the user approaches the vehicle with the car key and presses the unlock button on the remote key. The remote key emits a wireless unlock signal, which the body controller receives and transmits to the door handle controller via the CAN bus. When the door handle controller receives this signal, since the electronic lock has already been pre-unlocked at low temperatures (step S103 has been executed), there is no need to activate the electronic lock again; the mechanical lock is directly allowed to unlock, and the user can open the door by pulling the door handle. In another possible implementation, the user remotely issues an unlock command via a mobile app. This command is transmitted to the body controller via a cloud server and the vehicle communication module, and then forwarded to the door handle controller via the CAN bus, similarly triggering the mechanical lock to complete the door opening action.
[0041] In one optional implementation, before step S101, the controller can be in a sleep state by default, only being woken up when it receives a high-level wake-up signal from the voltage comparator, in order to reduce standby power consumption. When the ambient temperature is higher than a preset temperature threshold, the controller remains in sleep mode, the electronic lock is locked, and the user can open the door normally through conventional methods (such as electronic unlocking). When the ambient temperature is lower than the preset temperature threshold, the controller is woken up and performs the electronic lock unlocking action. After unlocking, the controller can enter sleep mode again to further reduce power consumption.
[0042] The vehicle door handle control method provided in this embodiment acquires temperature-related information characterizing the ambient temperature of the vehicle door handle, providing a data foundation for subsequent low-temperature judgment. It can flexibly adapt to various temperature detection methods, reducing dependence on specific sensor types and improving the applicability and flexibility of the solution. By determining the current ambient temperature based on temperature-related information, it can perceive the temperature status of the environment where the door handle is located in real time, transforming the raw temperature signal into a temperature judgment basis that can be used for decision-making, providing reliable input conditions for the accurate triggering of subsequent low-temperature unlocking logic.
[0043] By controlling the electronic lock to unlock when the current ambient temperature is below a preset temperature threshold, the lock can be pre-unlocked before the liquid on the door handle surface freezes or just reaches the freezing point, thus avoiding the risk of the electronic lock failing to operate due to freezing at low temperatures. Compared to related technologies that rely on increasing motor torque or adding heating devices to break the ice, this method eliminates the need for additional heating elements and consumes no extra power. It solves the problem of potential electronic lock failure in low-temperature environments with lower cost and higher reliability, while avoiding the increased energy consumption and structural complexity associated with heating solutions.
[0044] By controlling the door opening in response to vehicle unlocking signals, including mechanical unlocking signals, the final door opening action is completed by a purely mechanical lock. This fully leverages the advantages of mechanical locks, such as their unaffected freezing conditions and high reliability in low-temperature environments. It ensures that users can open the door normally using the conventional mechanical unlocking method after the electronic lock has been pre-unlocked, without the need for the door handle actuator to pop out in low temperatures. This avoids the problem of the door handle being frozen and unable to pop out, further improving the certainty of door opening operations and user experience in low-temperature scenarios.
[0045] In summary, this application embodiment effectively solves the technical problem of hidden door handles being unable to open due to icing in low-temperature environments by adopting a dual protection mechanism of "low-temperature pre-unlocking electronic lock + mechanical lock final opening" without adding heating elements or increasing the energy consumption of the whole vehicle, and with extremely low hardware costs. At the same time, the controller's sleep-wake mechanism further reduces the system's standby power consumption, making this solution superior to existing technical solutions in terms of reliability, cost, and energy consumption, and significantly improving the user experience.
[0046] In some optional implementations, the electronic lock unlocking of the vehicle door handle in step S103 above includes the following steps: Step a1: Compare the voltage signal output by the temperature sensor installed in the vehicle door handle with a preset reference voltage, which corresponds to a preset temperature threshold.
[0047] Step a2: If the voltage signal is greater than the preset reference voltage, output a high-level signal to wake up the controller.
[0048] In step a3, the controller, after being woken up, sends an unlocking command to the drive circuit of the electronic lock to control the electronic lock to unlock.
[0049] Specifically, a voltage signal refers to the electrical signal output by a temperature sensor in response to changes in ambient temperature, typically an analog voltage value. Since temperature sensors have different resistance values at different temperatures, when a constant current flows through the sensor, the voltage across its terminals changes with temperature; this changing voltage is the voltage signal. Taking a negative temperature coefficient thermistor as an example, the lower the ambient temperature, the higher the resistance, and the higher the output voltage signal. A preset reference voltage refers to a fixed voltage value set in advance, corresponding to the output voltage of the temperature sensor at a preset temperature threshold (e.g., 0°C). By comparing the voltage signal output by the sensor at the current temperature with the preset reference voltage, it can be determined whether the current ambient temperature is lower than the preset temperature threshold, without the controller needing to actively perform analog-to-digital conversion and numerical calculations. An unlock command refers to the digital control signal issued by the controller to control the electronic lock to perform the unlocking action. This signal can be a high-level or low-level signal output through a general-purpose input / output pin, or a protocol data packet containing the unlock command sent through a serial communication interface (such as a Serial Peripheral Interface (SPI), Inter-Integrated Circuit (I2C), etc.). After receiving the unlocking command, the drive circuit outputs the drive voltage and drive current to the actuator (such as a motor or electromagnet) of the electronic lock to drive it to complete the unlocking action.
[0050] This implementation achieves hardware-based low-temperature detection by directly comparing the voltage signal output by the temperature sensor with a preset reference voltage. Compared to the method where the controller actively collects temperature signals and performs analog-to-digital conversion and software comparison, this solution has the following technical advantages: the voltage comparator, as a pure hardware circuit, has a fast response speed, capable of completing the comparison and outputting the result within microseconds; the controller is in a sleep state most of the time, only being awakened to perform the unlocking action upon receiving a high-level wake-up signal from the voltage comparator, significantly reducing system standby power consumption; the power consumption of the hardware comparator is much lower than the power consumption of the controller during operation, which helps extend the life of the vehicle battery; at the same time, the hardware comparison method does not occupy the controller's analog-to-digital conversion resources and computing resources, reducing the controller's performance requirements and helping to reduce hardware costs.
[0051] In one possible implementation, a negative temperature coefficient thermistor is used as the temperature sensor, connected in series with a fixed resistor to form a voltage divider circuit. The output of the voltage divider circuit is connected to the non-inverting input of a voltage comparator, and the inverting input of the voltage comparator is connected to a preset reference voltage. The preset reference voltage is obtained by dividing the system supply voltage through a precision resistor voltage divider network, and its voltage value corresponds to the output voltage of the thermistor at 0°C. When the ambient temperature is above 0°C, the thermistor resistance is small, the output voltage of the voltage divider circuit is less than the preset reference voltage, and the voltage comparator outputs a low level. When the ambient temperature is below 0°C, the thermistor resistance increases, the output voltage of the voltage divider circuit is greater than the preset reference voltage, and the voltage comparator outputs a high level. This high-level signal is directly connected to the controller's external interrupt wake-up pin, waking the controller from deep sleep mode. After the controller is woken up, it sends a high-level unlock command to the drive circuit through a general-purpose input / output pin. The high-side switch in the drive circuit is turned on, outputting a drive voltage to the motor of the electronic lock. The motor rotates, causing the latch to retract, completing the unlocking of the electronic lock. After unlocking, the controller can enter sleep mode again, waiting to receive a vehicle unlock signal.
[0052] In some alternative implementations, the method for controlling the vehicle door handle further includes: Step b1: Obtain the power supply voltage of the controller.
[0053] Specifically, the supply voltage refers to the external power supply voltage input to the door handle controller, typically the output voltage of the vehicle's low-voltage power supply system. In traditional gasoline vehicles, this voltage comes from a 12V lead-acid battery; in new energy vehicles, this voltage comes from a 12V or 48V low-voltage lithium battery system, regulated by a DC-DC converter before being supplied to various low-voltage electrical devices. The supply voltage provides the operating energy for the controller and its peripheral circuits (such as drive circuits, temperature sensors, CAN transceivers, etc.).
[0054] Step b2: When the power supply voltage is lower than the first voltage threshold, control the electronic lock to unlock.
[0055] Specifically, the first voltage threshold refers to a pre-set lower limit value for the supply voltage, used to determine whether the vehicle's power supply system is in an undervoltage state. When the supply voltage is lower than this threshold, it indicates that the vehicle's battery power is insufficient or there is an abnormality in the power supply system. In this case, the controller controls the electronic lock to unlock, ensuring that the door can still be opened when the power supply is insufficient. According to the embodiments of this application, the first voltage threshold can be set to 9V, corresponding to the minimum normal operating voltage of the vehicle's 12V power supply system. When the supply voltage is lower than 9V, the electronic lock is forcibly unlocked to avoid the risk that the electronic lock will become completely inoperable due to a continuous drop in voltage.
[0056] Step b3: When the supply voltage is higher than the second voltage threshold, the system enters a sleep protection state.
[0057] Specifically, the second voltage threshold refers to a pre-set upper limit value for the supply voltage, used to determine whether the vehicle's power supply system is in an overvoltage state. When the supply voltage exceeds this threshold, it indicates an abnormality in the power supply system (such as a generator regulator failure, a loose battery connection causing a voltage surge, etc.), and excessively high voltage may damage the controller and its peripheral circuits. The sleep protection state refers to the controller actively shutting down unnecessary functional modules (such as drive circuit output, CAN communication, etc.) when it detects abnormal voltage conditions, retaining only the minimum wake-up monitoring function to protect the hardware circuits from overvoltage damage. According to an embodiment of this application, the second voltage threshold can be set to 16V.
[0058] This implementation method monitors the controller's power supply voltage in real time and implements differentiated protection measures for undervoltage and overvoltage abnormalities, ensuring the system maintains a safe and reliable operating state under different power supply conditions: in case of undervoltage, the electronic lock is actively unlocked to ensure the doors can still be opened even with low battery power; in case of overvoltage, the system enters sleep mode to prevent circuit damage. Simultaneously, the power supply voltage information can be fed back to the vehicle's infotainment system via the CAN bus, allowing users or maintenance personnel to promptly understand the power supply status, effectively improving the system's safety and reliability.
[0059] In one possible implementation, the voltage acquisition module includes a voltage divider resistor network and an analog-to-digital converter (ADC) channel. The battery voltage (VBAT) is divided by the resistor network and converted to a voltage range acceptable to the controller's ADC pin (e.g., 0~3.3V or 0~5V). The controller reads this voltage value in real time through the ADC pin. The controller internally stores a first voltage threshold (e.g., 9V) and a second voltage threshold (e.g., 16V). During normal operation, the controller periodically acquires the supply voltage. If the supply voltage is determined to be below 9V, the electronic lock is immediately unlocked via the drive circuit, and an undervoltage alarm signal is sent to the body controller via the CAN transceiver. If the supply voltage is determined to be above 16V, the controller's ADC module and CAN communication module enter a sleep state, the drive circuit output is disabled, and only the wake-up interrupt function is retained. After the supply voltage returns to normal, the controller receives an external wake-up signal and re-enters normal operation.
[0060] In some alternative implementations, the method for controlling the vehicle door handle further includes: Step c1: Receive an abnormal status signal, which includes at least one of the following: water ingress signal, smoke signal, high temperature signal, drop signal, or impact signal.
[0061] Specifically, abnormal status signals refer to alarm signals generated by the vehicle when abnormal operating conditions are detected, indicating that the vehicle is currently in a state requiring emergency response. This signal is generated by the vehicle domain controller based on the detection results of various sensors (such as water level sensors, smoke sensors, temperature sensors, acceleration sensors, collision sensors, etc.) and sent to the door handle controller via the CAN bus. Abnormal status signals may include, but are not limited to: water ingress signals (indicating the vehicle has been submerged in water or water has entered the passenger compartment), smoke signals (indicating the presence of smoke in the vehicle, possibly a precursor to fire), high temperature signals (indicating an abnormally high vehicle temperature), drop signals (indicating the vehicle has fallen), or impact signals (indicating a collision). For example, when the airbag controller detects a collision, it generates an impact signal and sends it to the body domain controller and door handle controller via the CAN bus.
[0062] Step c2: In response to the abnormal status signal, control the electronic lock to unlock and allow the door to be opened directly.
[0063] This implementation automatically unlocks the electronic lock in the event of a vehicle emergency, allowing the doors to be opened directly without waiting for the user to actively send an unlock signal. This provides crucial support for occupant escape and external rescue. Unlike the normal mode (where step S104 requires waiting for the user to send an unlock signal via the car key or app), this implementation immediately unlocks the electronic lock upon detecting an abnormal status signal, allowing the doors to be opened directly without any additional unlocking operation from the user. This further shortens the response time in emergency situations and improves vehicle safety and rescue efficiency.
[0064] In one possible implementation, the vehicle domain controller continuously monitors data reported from various sensors, including the airbag controller, vehicle stability system, and battery management system. When a collision occurs, the airbag controller detects a sudden acceleration signal, determines that a collision has occurred, generates an impact signal, and sends it to the body domain controller via the CAN bus in a specific message format (e.g., standard frame ID 0x100, data field containing collision level code). The body domain controller synchronously forwards this signal to the CAN transceiver of the door handle controller. Upon receiving the message, the CAN transceiver of the door handle controller parses the impact signal, and the controller immediately sends an unlock command to the drive circuit, unlocking the electronic lock. Simultaneously, the controller configures the door control logic to "allow direct door opening" mode, meaning that in this mode, the door can be opened without waiting for the user to actively send a vehicle unlock signal. Rescue personnel or passengers only need to pull the door handle to open the door. When the abnormal state is resolved (e.g., after collision handling or vehicle maintenance), the control logic can be restored to normal mode via external commands (e.g., commands from diagnostic equipment provided by maintenance personnel) or system self-test after the vehicle is powered back on.
[0065] In some alternative implementations, the temperature sensor is a thin-film temperature sensor, which is fitted into the interior of the door handle.
[0066] Specifically, the temperature sensor is a thin-film temperature sensor, which is embedded inside the door handle. Thin-film temperature sensors are small and thin, allowing them to fit snugly against the inner wall of the door handle housing without occupying the limited space inside the handle or affecting its mechanical structure and movement. This seamless embedding eliminates air gaps between the sensor and the door handle, enabling accurate and rapid reflection of actual temperature changes within the handle itself. This avoids temperature lag caused by delayed heat transfer from air, improving the accuracy and response speed of low-temperature detection. Furthermore, the thin-film structure has good thermal conductivity and mechanical flexibility, allowing it to adapt to the complex mounting surfaces inside the door handle, simplifying the assembly process and reducing production costs.
[0067] In some alternative implementations, the vehicle unlock signal may also include a wireless unlock signal emitted by the car key or a wireless unlock signal emitted by a mobile terminal application.
[0068] Specifically, a wireless unlock signal refers to a command signal transmitted wirelessly to trigger the unlocking or opening of a vehicle door, without relying on physical contact or wiring connections. This signal can be transmitted using wireless communication technologies such as RFID, Bluetooth, near-field communication, and cellular networks. For example, the wireless unlock signal emitted by a car key can be an encrypted command sent via RFID technology; when the user presses the unlock button on the car key, the key emits an RF signal containing a specific ID code and unlock command. Similarly, the wireless unlock signal emitted by a mobile application can be an unlock command generated by the user through a mobile app, which is transmitted to the vehicle via Bluetooth or a cellular network.
[0069] With the electronic lock pre-unlocked, users can send vehicle unlock signals wirelessly via various methods. These methods complement each other, meeting diverse usage needs and offering excellent flexibility and convenience. The remote control function via mobile devices, in particular, allows users to send unlock signals in advance even when away from the vehicle, further enhancing the user experience. Furthermore, regardless of the wireless method used, the final door opening action is completed by the purely mechanical lock, independent of the door handle actuator's ejection action in low temperatures, ensuring both convenience and reliability in cold environments.
[0070] Figure 2 This is a comparative schematic diagram of a vehicle unlocking process according to an embodiment of this application. For example... Figure 2As shown, under normal temperature conditions, the user sends an unlock signal via the car key or mobile application. Upon receiving this signal, the vehicle simultaneously triggers both the electronic and mechanical locks to unlock. Once both are unlocked, the door opens. This process is a standard electronic + mechanical dual unlocking path and works normally under normal temperature conditions.
[0071] In low-temperature scenarios, the process provided in this application embodiment differs significantly from the conventional process described above. When the controller detects that the ambient temperature is lower than a preset temperature threshold, it triggers a low-temperature pre-unlocking mechanism: the vehicle door handle controller automatically controls the electronic lock to pre-unlock under low-temperature conditions without waiting for the user's opening signal. At this time, the electronic lock is already in the unlocked state, but the mechanical lock remains locked, and the door is not opened. Subsequently, when the user sends an opening signal via the car key or mobile terminal application, the signal triggers the mechanical lock to unlock, and the door opens immediately after the mechanical lock unlocks.
[0072] In the aforementioned low-temperature scenario, because the electronic lock's unlocking action is pre-completed before freezing occurs, even if the door handle surface subsequently freezes due to further temperature drops, the electronic lock does not need to operate while frozen, thus avoiding the risk of the electronic lock malfunctioning due to icing. The user ultimately triggers the mechanical lock to open the door via an opening signal, fully leveraging the high reliability of the mechanical lock in low-temperature environments. This process, through a dual-protection mechanism of "low-temperature pre-unlocking electronic lock + final mechanical lock opening," solves the technical problem of concealed door handles failing to open due to icing in low-temperature environments without requiring additional heating elements or increasing overall vehicle energy consumption.
[0073] This embodiment provides a method for controlling a vehicle door handle, which can be used in a vehicle door handle controller. Figure 3 This is a schematic diagram of a vehicle door handle control system according to an embodiment of this application, as shown below. Figure 3 As shown, the system includes: A temperature sensor, installed in the vehicle door handle, is used to collect temperature signals; The controller, connected to the temperature sensor, is used to determine the current ambient temperature of the vehicle door handle based on the temperature signal, and to generate an electronic lock unlocking command when the current ambient temperature is lower than a preset temperature threshold. The drive circuit is connected to the electronic lock of the controller and the door handle. The drive circuit is used to drive the electronic lock to unlock in response to the electronic lock unlocking command. The controller is also used to control the door to open in response to a received vehicle unlocking signal, which includes a mechanical unlocking signal.
[0074] Specifically, a temperature sensor is a device installed inside or on the surface of a vehicle door handle to sense the ambient temperature and convert it into a processable electrical signal. In this embodiment, the temperature sensor can be a thin-film negative temperature coefficient thermistor, whose resistance increases as the ambient temperature decreases and decreases as the ambient temperature increases. Temperature changes can be reflected by detecting changes in the voltage across its terminals. The temperature sensor is connected to one or more input pins of the controller to transmit the collected temperature signal (such as a voltage signal) to the controller.
[0075] The controller is a core electronic component in a vehicle door handle, possessing data processing and control logic capabilities. It receives temperature signals from a temperature sensor, determines the current ambient temperature based on these signals, and generates an electronic lock unlocking command when the current ambient temperature is below a preset temperature threshold. The controller can be a microcontroller, integrating modules such as a central processing unit, storage unit, analog-to-digital converter, general-purpose input / output interface, and communication interface. The controller is responsible for executing the control method described in this application, including temperature signal processing, low-temperature judgment, generation and transmission of unlocking commands, and response to vehicle unlocking signals. The controller can connect to the vehicle's CAN bus via a CAN transceiver, enabling data interaction with the vehicle domain controller or other electronic control units.
[0076] The drive circuit refers to the electronic power circuit connected between the controller and the electronic lock. It responds to the unlocking command output by the controller, providing the electronic lock with sufficient drive voltage and current to perform the unlocking action. The drive circuit can be implemented using a high-side switching circuit, a full-bridge drive circuit, or a dedicated motor driver chip. In this embodiment, when the controller determines that the current ambient temperature is lower than a preset temperature threshold, it generates an electronic lock unlocking command (e.g., a high-level signal or a command data packet of a specific format). Upon receiving this command, the drive circuit outputs a drive voltage to the actuator of the electronic lock, driving the electronic lock to unlock.
[0077] An electronic lock is an actuator installed in the door handle or door that uses electricity to lock and unlock. It typically includes a bolt, a drive motor or electromagnet, and a transmission mechanism. When the drive circuit provides driving voltage, the motor rotates and retracts the bolt, unlocking the door. When the driving voltage is removed, the bolt extends under the action of a return spring, locking the door.
[0078] A vehicle unlock signal refers to a command signal issued by a user through operating a car key, mobile terminal application, or other authorized methods to request the opening of the vehicle door. In this embodiment, the vehicle unlock signal includes a mechanical unlock signal, which is an unlocking command that triggers the action of a purely mechanical lock. A mechanical lock is a locking mechanism that does not rely on electricity and achieves locking and unlocking functions through physical structure. It is unaffected by icing in low-temperature environments and has high reliability.
[0079] The operating process of the vehicle door handle control system provided in this embodiment is as follows: A temperature sensor collects the ambient temperature of the door handle in real time and transmits the temperature signal to the controller. The controller determines the current ambient temperature based on the temperature signal. When the current ambient temperature is determined to be lower than a preset temperature threshold (e.g., 0°C), the controller generates an electronic lock unlocking command, and the drive circuit responds to the command to unlock the electronic lock. At this time, the electronic lock is pre-unlocked, but the door is not open. Subsequently, when the user sends a vehicle unlocking signal via the car key or mobile terminal application, the controller responds to the signal, and the mechanical lock completes the final unlocking and opening action. This system enables the door to be opened ultimately by the mechanical lock, eliminating the need for the door handle actuator to pop out at low temperatures. Thus, without the need for additional heating elements, it solves the problem of concealed door handles being unable to open in low-temperature environments in a low-cost and highly reliable manner.
[0080] In one possible implementation, the controller enters a low-power sleep state after power-on initialization. The temperature sensor continues to operate, and its output voltage signal is transmitted to a voltage comparator. The voltage comparator compares this voltage signal with a preset reference voltage (corresponding to 0°C). When the voltage signal output by the temperature sensor is greater than the preset reference voltage (i.e., the ambient temperature is below 0°C), the voltage comparator outputs a high-level signal. This high-level signal is connected to the controller's external interrupt wake-up pin, waking the controller from sleep mode. After waking up, the controller switches from sleep mode to normal operating mode and sends a high-level unlock command to the drive circuit through general-purpose input / output pins. The high-side switch in the drive circuit is turned on, outputting a drive voltage to the motor of the electronic lock. The motor rotates, driving the latch to retract, completing the unlocking of the electronic lock. The controller can then enter sleep mode again to reduce standby power consumption. Subsequently, when the user presses the unlock button on the car key, the key transmits a wireless unlock signal. The body controller sends this unlock signal to the CAN transceiver of the door handle controller via the CAN bus. The controller is awakened by the CAN transceiver and responds to the signal. Since the electronic lock has already been unlocked, the controller does not need to perform any further electronic lock actuation actions and directly allows the mechanical lock to unlock, allowing the user to open the door by pulling the door handle. In addition, the controller also obtains the supply voltage in real time through a voltage acquisition module and actively unlocks the electronic lock when the supply voltage is below 9V, and enters a sleep protection state when the supply voltage is above 16V. The controller also receives impact signals from the vehicle domain controller via the CAN transceiver and unlocks the electronic lock upon receiving an impact signal, allowing direct opening of the door, facilitating occupant escape and external rescue after a collision.
[0081] In one possible implementation, Figure 4 This is a schematic diagram illustrating the configuration of a vehicle door handle controller according to an embodiment of this application. Figure 4As shown, the controller includes a temperature sensor, a voltage comparison module, a voltage acquisition module, a CAN transceiver, a drive circuit, and an electronic lock. Each module is connected to a microcontroller unit (MCU) and is powered by a unified VBAT.
[0082] Specifically, a temperature sensor is installed inside the vehicle door handle to collect the temperature signal of the environment in which the door handle is located. The output of the temperature sensor is connected to the input of a voltage comparator module and the analog-to-digital converter (ADC) pin of the controller. The voltage signal output by the temperature sensor is transmitted to the voltage comparator module for low-temperature detection, and to the ADC pin of the controller for temperature value acquisition and monitoring.
[0083] The first input terminal of the voltage comparator module is connected to the output terminal of the temperature sensor, and the second input terminal is connected to a preset reference voltage (Vref). The voltage comparator module compares the voltage signal output by the temperature sensor with the preset reference voltage and outputs a high-level signal when the voltage signal is greater than the preset reference voltage. The output terminal of the voltage comparator module is connected to the controller's external interrupt (Interrupt, INT) pin. This high-level signal is used to wake up the controller from sleep mode, switching it from sleep mode to normal operation. Through this hardware comparison method, the controller can respond to temperature changes in real time without continuous operation, effectively reducing system standby power consumption.
[0084] The controller's ADC pin is connected to the output of the temperature sensor to convert the analog voltage signal output by the temperature sensor into a digital signal. The controller then uses this digital signal to determine the current ambient temperature. The controller's ADC pin is also connected to the output of the voltage acquisition module, whose input is connected to VBAT. This module acquires the controller's power supply voltage and transmits it to the controller, enabling the controller to perform appropriate protective actions when the power supply voltage is abnormal.
[0085] The controller's general purpose input / output (I / O) pins are connected to the control terminals of the drive circuit. The drive circuit's power supply terminal is connected to VBAT, and its output terminal is connected to the electronic lock. The controller sends an unlock command (such as a high-level signal) to the drive circuit through the I / O pins. In response to this command, the drive circuit outputs a drive voltage and a drive current to the electronic lock, driving the electronic lock to perform the unlocking action.
[0086] The controller's CAN transceiver interface (TX / RX) connects to the CAN transceiver, which in turn connects to the vehicle's CAN bus, enabling data exchange between the controller and the vehicle domain controller. The controller receives abnormal status signals (such as impact signals) from the vehicle domain controller via the CAN transceiver and responds to these signals by controlling the electronic locks to unlock, while also allowing direct opening of the doors.
[0087] VBAT connects to the voltage comparison module, voltage acquisition module, CAN transceiver, drive circuit, and controller, providing operating voltage to each module. The controller can monitor the supply voltage in real time through the voltage acquisition module. When the supply voltage is lower than the first voltage threshold (e.g., 9V), it controls the electronic lock to unlock; when the supply voltage is higher than the second voltage threshold (e.g., 16V), it controls the controller to enter a sleep protection state.
[0088] This embodiment, through the aforementioned hardware connection structure, enables pre-unlocking of the electronic lock in low-temperature environments, real-time monitoring of the power supply voltage, response to abnormal status signals, and final door opening control of the door handle. Each module has a clear division of labor and works together efficiently, achieving reliable control functions with a simple hardware structure.
[0089] Figure 5 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.
[0090] The following is a detailed reference. Figure 5 The diagram illustrates a structural schematic suitable for implementing the electronic device described in the embodiments of this application. The electronic device may include a processor (e.g., a central processing unit, graphics processor, etc.) 501, which can perform various appropriate actions and processes according to a program stored in read-only memory (ROM) 502 or a program loaded from memory 508 into random access memory (RAM) 503. The RAM 503 also stores various programs and data required for the operation of the electronic device. The processor 501, ROM 502, and RAM 503 are interconnected via a bus 504. An input / output (I / O) interface 505 is also connected to the bus 504.
[0091] Typically, the following devices can be connected to I / O interface 505: input devices 506 including, for example, touchscreens, touchpads, keyboards, mice, cameras, microphones, accelerometers, gyroscopes, etc.; output devices 507 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; memory devices 508 including, for example, magnetic tapes, hard disks, etc.; and communication devices 509. Communication device 509 allows electronic devices to communicate wirelessly or wiredly with other devices to exchange data. Although Figure 5Electronic devices with various devices are shown, but it should be understood that it is not required to implement or have all of the devices shown, and more or fewer devices may be implemented or have instead.
[0092] Specifically, according to embodiments of this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this application include a computer program product comprising a computer program carried on a non-transitory computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device 509, or installed from a memory 508, or installed from a ROM 502. When the computer program is executed by the processor 501, it performs the functions defined in the vehicle door handle control method of embodiments of this application.
[0093] Figure 5 The electronic device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.
[0094] This application also provides a computer-readable storage medium. The methods described in this application can be implemented in hardware or firmware, or implemented as computer code that can be recorded on a storage medium, or implemented as computer code downloaded via a network and originally stored on a remote storage medium or a non-transitory machine-readable storage medium and then stored on a local storage medium. Thus, the methods described herein can be processed by software stored on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. The storage medium can be a magnetic disk, optical disk, read-only memory, random access memory, flash memory, hard disk, or solid-state drive, etc.; further, the storage medium can also include combinations of the above types of memory. It is understood that computers, processors, microprocessor controllers, or programmable hardware include storage components capable of storing or receiving software or computer code. When the software or computer code is accessed and executed by the computer, processor, or hardware, the vehicle door handle control method shown in the above embodiments is implemented.
[0095] A portion of this application can be applied as a computer program product, such as computer program instructions, which, when executed by a computer, can invoke or provide the methods and / or technical solutions according to this application through the operation of the computer. Those skilled in the art will understand that the forms in which computer program instructions exist in a computer-readable medium include, but are not limited to, source files, executable files, installation package files, etc. Correspondingly, the ways in which computer program instructions are executed by a computer include, but are not limited to: the computer directly executing the instructions, or the computer compiling the instructions and then executing the corresponding compiled program, or the computer reading and executing the instructions, or the computer reading and installing the instructions and then executing the corresponding installed program. Here, the computer-readable medium can be any available computer-readable storage medium or communication medium accessible to a computer.
[0096] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and all such modifications and variations fall within the scope defined by the appended claims.
Claims
1. A method for controlling a vehicle door handle, characterized in that, The method is executed on the controller of the vehicle door handle, and the method includes: Obtain temperature-related information characterizing the ambient temperature of the vehicle door handle; Based on the temperature-related information, determine the current ambient temperature; When the current ambient temperature is lower than a preset temperature threshold, the electronic lock on the vehicle door handle is unlocked. In response to a vehicle unlock signal, the door with the door handle located is controlled to open, the vehicle unlock signal including a mechanical unlock signal.
2. The method according to claim 1, characterized in that, The electronic lock unlocking that controls the vehicle door handle includes: The voltage signal output by the temperature sensor installed in the vehicle door handle is compared with a preset reference voltage, which corresponds to the preset temperature threshold. If the voltage signal is greater than the preset reference voltage, a high-level signal is output to wake up the controller; The controller, after being woken up, sends an unlocking command to the drive circuit of the electronic lock to control the electronic lock to unlock.
3. The method according to claim 1, characterized in that, The method further includes: Obtain the power supply voltage of the controller; When the power supply voltage is lower than the first voltage threshold, the electronic lock is unlocked. When the supply voltage is higher than the second voltage threshold, it enters a sleep protection state.
4. The method according to claim 1, characterized in that, The method further includes: Receive abnormal status signals, the abnormal status signals including at least one of water ingress signal, smoke signal, high temperature signal, drop signal or impact signal; In response to the abnormal status signal, the electronic lock is unlocked, allowing the vehicle door to be opened directly.
5. The method according to claim 2, characterized in that, The temperature sensor is a thin-film temperature sensor, which is fitted inside the door handle.
6. The method according to claim 1, characterized in that, The vehicle unlocking signal also includes a wireless unlocking signal emitted by the car key and a wireless unlocking signal emitted by the mobile terminal application.
7. A control system for a vehicle door handle, characterized in that, The system includes: A temperature sensor, installed in the vehicle door handle, is used to collect temperature signals; A controller is connected to the temperature sensor. The controller is used to determine the current ambient temperature of the vehicle door handle based on the temperature signal, and to generate an electronic lock unlocking command when the current ambient temperature is lower than a preset temperature threshold. A drive circuit is connected to the electronic lock of the controller and the door handle. The drive circuit is used to drive the electronic lock to unlock in response to the electronic lock unlocking command. The controller is further configured to control the door to open in response to a received vehicle unlocking signal, the vehicle unlocking signal including a mechanical unlocking signal.
8. An electronic device, characterized in that, include: A memory and a processor are communicatively connected, the memory stores computer instructions, and the processor executes the computer instructions to perform the vehicle door handle control method according to any one of claims 1 to 6.
9. A vehicle, characterized in that, The vehicle includes a controller, which includes a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the computer instructions to perform the vehicle door handle control method according to any one of claims 1 to 6.
10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the vehicle door handle control method as described in any one of claims 1 to 6.