Vehicle control method and device and vehicle

Abstract

The invention provides a vehicle control method and device and a vehicle, and is applied to the technical field of vehicle intelligent control, and the method comprises the steps: responding to a received power-on request, and detecting whether a low-frequency antenna module is available or not; based on the detection result of the low-frequency antenna module, the low-frequency antenna module and / or the two-way communication positioning module are / is used for positioning the intelligent key; and controlling the vehicle to be powered on in response to the fact that the smart key is determined to be located inside the vehicle through positioning. According to the invention, even if the low-frequency module breaks down, the vehicle can still perform intelligent key positioning and power-on operation normally, so that the user experience and the use reliability of the vehicle are guaranteed. The bidirectional communication positioning module can take over a positioning task under the condition that the low-frequency antenna module is unavailable, so that an IMMO antenna does not need to participate in positioning, and the realization of a positioning function is ensured while the cost is optimized.

Description

Technical Field

[0001] The present application relates to the field of vehicle intelligent control technology, and in particular to a vehicle control method, device and vehicle. Background Art

[0002] The traditional PEPS (Passive Entry Passive Start) system, that is, the one-button start system without smart keys, realizes the precise positioning and interaction of physical smart keys based on high- and low-frequency two-way communication mechanisms. However, with the continuous development of automobile technology and the intensification of market competition, the traditional PEPS system has gradually exposed some limitations. For example, in order to save costs, some solutions reuse the original independent IMMO (Immobilizer, anti-theft control unit) antenna function with the low-frequency antenna. Although it can meet the vehicle's no smart key entry and start requirements and reduce hardware costs, when the low-frequency antenna fails, the vehicle cannot locate the smart key through the low-frequency signal, resulting in the failure of the emergency power on and off function. Summary of the invention

[0003] In view of this, the purpose of the present application is to propose a vehicle control method, device and vehicle, so as to locate the smart key when some hardware fails, thereby realizing the power-on function of the vehicle.

[0004] Based on the above objectives, the present application provides a vehicle control method, comprising:

[0005] In response to receiving the power-on request, detecting whether the low-frequency antenna module is available;

[0006] Based on the detection result of the low-frequency antenna module, the smart key is positioned using the low-frequency antenna module and / or the two-way communication positioning module;

[0007] In response to determining that the smart key is inside the vehicle through positioning, the vehicle is controlled to be powered on.

[0008] Based on the same inventive concept, the present application also provides a vehicle control device, including:

[0009] a detection module, configured to detect whether the low-frequency antenna module is available in response to receiving a power-on request;

[0010] a positioning module configured to locate the smart key using the low-frequency antenna module and / or the two-way communication positioning module based on the detection result of the low-frequency antenna module;

[0011] The control module is configured to control the vehicle to power on in response to determining that the smart key is inside the vehicle through positioning.

[0012] Based on the same inventive concept, the present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable by the processor, wherein the processor implements the method as described above when executing the computer program.

[0013] Based on the same inventive concept, the present application also provides a vehicle, which includes the above-mentioned vehicle control device.

[0014] As can be seen from the above, the vehicle control method, device and vehicle provided by the present application, wherein the method includes: in response to receiving a power-on request, detecting whether the low-frequency antenna module is available; based on the detection result of the low-frequency antenna module, using the low-frequency antenna module and / or the two-way communication positioning module to locate the smart key, thereby providing a redundant design, ensuring the positioning accuracy of the smart key, and being able to locate the smart key through the two-way communication positioning module when the low-frequency antenna module fails; in response to determining that the smart key is inside the vehicle through positioning, controlling the vehicle to power on, and not requiring the user to operate the smart key to power on the vehicle, which is more convenient, improves the efficiency of vehicle startup, and ensures the user experience and reliability of vehicle use. Since the loss of positioning function caused by the failure of the low-frequency antenna module can be avoided, no additional equipment is required to participate in positioning, thereby optimizing the cost while ensuring the realization of the positioning function. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1A This is a flow chart of a vehicle control method according to an embodiment of the present application;

[0017] Figure 1B This is a schematic diagram of a vehicle control method according to an embodiment of the present application;

[0018] Figure 2 A schematic diagram of a vehicle control device according to an embodiment of the present application;

[0019] Figure 3 A schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0020] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0021] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] The traditional PEPS (Passive Entry Passive Start) system, that is, the one-button start system without smart keys, is a convenient technology widely used in modern cars. Its working principle is based on a high-low frequency two-way communication mechanism to achieve precise positioning and interaction with the physical smart key. When the user triggers the one-button start switch of the vehicle, the controller without smart keys in the system starts immediately, first driving the low-frequency antenna of the vehicle to transmit a low-frequency signal to find out whether there is a corresponding smart key around. Once the smart key receives the low-frequency signal from the vehicle, it will activate its own high-frequency response mechanism and send a high-frequency signal containing identity authentication information to the vehicle. After the vehicle receives the signal, it will go through a series of verification and processing processes within the system to finally realize operations such as starting or unlocking the vehicle. The PEPS technical architecture has gone through three stages: the mechanical smart key stage, which relies on the mechanical matching of the physical smart key and the lock cylinder, has the defects of easy duplication and cumbersome operation; the remote control smart key stage, which realizes remote unlocking through 433MHz radio frequency one-way communication, but still requires active button operation; the passive PEPS stage, which adopts 125kHz low frequency and 433MHz high frequency two-way communication to realize the non-sensing positioning of the smart key and vehicle status control. The current mainstream PEPS system is based on the positioning mechanism of low-frequency trigger + high-frequency feedback. When the user triggers the door handle or the start button, the low-frequency driver chip on the vehicle side activates multiple low-frequency antennas arranged inside and outside the car (such as door handles, armrest boxes, trunks, etc.), and transmits a 125kHz signal to wake up the smart key; after the smart key receives the low-frequency signal through the three-dimensional antenna, it replies with a 433MHz high-frequency signal containing RSSI (Received Signal Strength Indicator). The vehicle-side controller determines the location of the smart key (inside / outside the car) through the triangulation positioning algorithm, and then controls unlocking or starting. The traditional PEPS system is designed with a certain redundancy mechanism to deal with abnormal situations such as the low battery of the smart key being unable to respond to the high-frequency signal normally, or the failure of the low-frequency drive on the vehicle side. For example, when the low-frequency antenna fails to successfully find the smart key, the system will further drive the IMMO (Immobilizer, anti-theft control unit) antenna to search again, so as to ensure that the vehicle can still achieve emergency power-on function under special circumstances and ensure that users can use the vehicle normally. The traditional PEPS system has significant advantages in improving the user's car experience. It eliminates the tedious operations of users looking for smart keys, plugging and unplugging smart keys, and realizes true entry and start without smart keys, which greatly improves convenience. At the same time, its high and low frequency two-way communication mechanism guarantees the reliability and security of the system to a certain extent, and can work stably in a variety of scenarios.

[0023] However, with the continuous development of automobile technology and the intensification of market competition, the traditional PEPS system has gradually exposed some limitations. Among them, the more prominent problem is the challenge of balancing cost control and function realization. For example, in order to save costs, some new solutions reuse the original independent IMMO antenna function with the low-frequency antenna. Although it reduces the hardware cost to a certain extent, it also brings new problems. Although this design can meet the vehicle's non-smart key entry and start requirements under normal circumstances, when the low-frequency drive chip fails, the vehicle will not be able to locate and interact with the traditional low-frequency signal drive smart key, which will cause the emergency power-on and power-off function to fail. For users, this greatly affects the car experience, especially when the vehicle fails and needs to be started urgently, and may even bring certain safety hazards. Secondly, the traditional PEPS system lacks effective backup communication paths and response strategies when facing low-frequency antenna or low-frequency drive chip failures. Once the low-frequency signal transmission or reception is abnormal, the function realization of the entire system will be seriously affected. For example, when the low-frequency antenna is partially damaged (such as an open or short-circuited antenna), although the system has a certain fault detection capability and can skip the faulty antenna and continue to work, this will reduce the accuracy of smart key positioning and affect the overall performance of the system. When the low-frequency antenna is completely damaged or the low-frequency driver chip fails completely, the system will be completely unable to locate and interact with the smart key through low-frequency signals, and the vehicle's emergency power-on and power-off functions will not be guaranteed.

[0024] Based on the above problems, the applicant found that: in response to receiving a power-on request, it is detected whether the low-frequency antenna module is available; based on the detection result of the low-frequency antenna module, the low-frequency antenna module and / or the two-way communication positioning module are used to locate the smart key; in response to determining that the smart key is inside the vehicle through positioning, the vehicle is controlled to power on. In the case where the low-frequency antenna module is completely unavailable, the two-way communication positioning module is completely relied upon for positioning. It ensures that even in the event of a failure in the low-frequency module, the vehicle can still perform normal smart key positioning and power-on operations, ensuring user experience and reliability of vehicle use. In combination with the low-frequency antenna module and the two-way communication positioning module, multiple positioning paths are provided, which enhances the robustness of the system. When the low-frequency antenna module fails, the spare two-way communication positioning module can take over the positioning task, avoiding the problem of the vehicle being unable to start due to hardware failure.

[0025] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0026] The present application provides a vehicle control method, such as Figure 1AAs shown, in some embodiments, the method is executed by a vehicle controller or a data processor independently provided by the vehicle controller, and the subsequent embodiments are all illustrated by taking the data processor as an example. The vehicle includes a low-frequency antenna module and a two-way communication positioning module; the method includes:

[0027] S101, in response to receiving a power-on request, detecting whether the low-frequency antenna module is available;

[0028] In specific implementation, when the user presses the vehicle's one-touch start button or issues a power-on request through other means, the vehicle receives the power-on request. The power-on request indicates the user's intention to start the vehicle. The low-frequency antenna module is responsible for transmitting a low-frequency signal to determine the presence and location of the smart key. Therefore, before starting the vehicle, it is necessary to ensure the normal working state of the low-frequency antenna module. The physical connection status of the low-frequency antenna module can be checked through the self-test function to ensure that there are no hardware failures such as broken wires or short circuits. A low-frequency signal test may also be performed to verify whether the antenna can transmit signals normally. If the vehicle is equipped with multiple low-frequency antennas, the status of each low-frequency antenna is checked one by one to ensure that at least multiple antennas can work normally, and whether the low-frequency antenna module is available is determined based on the test results. Detecting whether the low-frequency antenna module is available provides a basic guarantee for the entire vehicle power-on process, ensuring that the vehicle functions normally and is safe and reliable when started.

[0029] S102, based on the detection result of the low-frequency antenna module, using the low-frequency antenna module and / or the two-way communication positioning module to locate the smart key;

[0030] In specific implementation, the smart key is a key that can realize keyless entry and keyless start functions through wireless communication technology. Usually, the hardware components of the smart key include a low-frequency signal receiving module, a key-side two-way communication positioning module (which can realize two-way interactive communication with the vehicle's two-way communication positioning module), a battery, a button, etc. If the test result shows that the low-frequency antenna module is working properly, the low-frequency antenna module and the two-way communication positioning module will continue to be used to locate the smart key. If the test result shows that the low-frequency antenna module is faulty, that is, the low-frequency antenna module is unavailable, the smart key can be located and verified only by the two-way communication positioning module. Specifically, if the test result shows that the low-frequency antenna module is working properly, the low-frequency antenna module usually wakes up the smart key by transmitting a low-frequency signal (such as 125kHz). After receiving the signal, the smart key will reply to the vehicle through the two-way communication positioning module containing data similar to RSSI (received signal strength). These data can be analyzed by a triangulation positioning algorithm to determine the location of the smart key (such as inside or outside the vehicle), and based on this, decide whether to allow the vehicle to power on. If the low-frequency antenna module detects a fault (for example, the low-frequency driver chip is damaged or the low-frequency antenna is open / short-circuited), the backup plan is activated, that is, only the two-way communication positioning module is used to locate the smart key. The two-way communication positioning module includes but is not limited to the BLE (Bluetooh Low Energy) module. The following is based on the Bluetooth low-power communication module as an example. The wake-up signal is transmitted through the Bluetooth low-power communication module. If the smart key receives the wake-up signal within the specified range and replies with a legal Bluetooth message, it can be determined whether the smart key is located inside the vehicle through the received Bluetooth message. In the prior art, vehicles usually locate smart keys through low-frequency antennas and high-frequency antennas, that is, the vehicle sends a low-frequency signal to the smart key through the low-frequency antenna, and receives the feedback signal of the smart key through the high-frequency antenna, thereby locating the smart key. When all low-frequency antennas fail or the smart key is too low in battery to reply to the feedback signal, the smart key cannot be located. At this time, the smart key can be located through the IMMO antenna. However, in the prior art, in order to save costs, some low-frequency antennas are usually reused as IMMO antennas. When the smart key cannot be located (such as the smart key is too low in battery to reply to the feedback signal), the smart key can be located through the IMMO antenna to power on. However, if all low-frequency antennas fail, the IMMO antenna cannot be used for positioning. However, the two-way communication positioning module in this embodiment provides a redundant design. Under the premise of cost-saving design (the low-frequency antenna is reused as an IMMO antenna), if the low-frequency antenna module fails and is unavailable, the vehicle can use the two-way communication positioning module to locate the smart key, thereby controlling the power-on of the vehicle. If the low-frequency antenna module is available, the low-frequency antenna module and the two-way communication positioning module can be used together to achieve more accurate positioning, thereby controlling the power-on of the vehicle and ensuring the normal use of the vehicle.

[0031] S103: In response to determining through positioning that the smart key is inside the vehicle, controlling the vehicle to power on.

[0032] In specific implementation, after determining that the smart key is inside the vehicle through positioning, the legitimacy of the smart key can be further verified to ensure that the vehicle will not be started by an unauthorized smart key. For example, when the smart key responds to the vehicle signal, it will send a data packet containing encrypted identity information. The vehicle confirms whether the smart key is bound to the vehicle through decryption and matching to prevent illegal smart keys or signal interference. After confirming that the smart key is in the vehicle, the vehicle is powered on in response to the user's power-on request. Vehicle power-on refers to powering the vehicle's key systems (such as the engine, control unit, electrical equipment, etc.) to put them into an operational state. After power-on, the position of the smart key can also be continuously monitored. If the smart key position is detected to be abnormal or identity authentication fails, the vehicle will be locked.

[0033] Figure 1B This is a schematic diagram of the vehicle control method of the present application embodiment, based on Figure 1B Further explain the working principle of the vehicle control method of the present application: when the user triggers the one-button start switch, the MCU (Microcontroller Unit; microcontroller unit) in the PEPS controller receives the signal of the one-button start switch, that is, the power-on request, at this time, the MCU detects whether the low-frequency antenna module is available, that is, the MCU detects whether the LF (Low Frequency) driver chip (low-frequency driver chip) is faulty, if the low-frequency driver chip is not faulty, the MCU controls the low-frequency driver chip to detect whether each low-frequency antenna is faulty, so as to determine whether the low-frequency antenna module is available, if the low-frequency antenna module is available, the LF driver chip transmits low-frequency signals in sequence through multiple low-frequency antennas, when the low-frequency (LF) signal receiving antenna in the smart key receives multiple low-frequency signals, the smart key sends data containing RSSI (received signal strength) to the BLE chip (two-way communication positioning module) in the PEPS controller through the BLE module (two-way communication positioning module). The MCU in the PEPS controller can analyze these data through the triangulation positioning algorithm to determine the location of the smart key, and if the smart key is inside the vehicle, control the vehicle to power on. If the MCU detects that the low-frequency antenna module is unavailable (i.e., the LF driver chip fails or the entire low-frequency antenna fails), the MCU controls the BLE chip (two-way communication positioning module) to transmit a wake-up signal to the BLE module (two-way communication positioning module) in the smart key. If the smart key receives the wake-up signal within the specified range and replies with a legal Bluetooth message, the PEPS controller determines that the smart key is inside the vehicle through the received Bluetooth information and controls the vehicle to power on.

[0034] In this embodiment, when the low-frequency antenna module is completely unavailable, the two-way communication positioning module is completely relied upon for positioning. This ensures that even in the event of a failure in the low-frequency module, the vehicle can still perform normal smart key positioning and power-on operations, ensuring user experience and system reliability. Combining the low-frequency antenna module and the two-way communication positioning module, a variety of positioning paths are provided, enhancing the robustness of the system. When the low-frequency antenna module fails, the spare two-way communication positioning module can take over the positioning task, avoiding the problem of the vehicle being unable to start due to hardware failure, which not only improves the reliability and safety of the vehicle, but also optimizes the user experience.

[0035] In some embodiments, the low-frequency antenna module includes a plurality of low-frequency antennas; and based on the detection result of the low-frequency antenna module, positioning the smart key using the low-frequency antenna module and / or the two-way communication positioning module includes:

[0036] In response to determining that the low-frequency antenna module is available, locating the smart key using a plurality of low-frequency antennas in the low-frequency antenna module and the two-way communication positioning module;

[0037] In specific implementation, the low-frequency antenna module is usually composed of multiple low-frequency antennas, which are distributed in different locations of the vehicle (such as door handles, armrest boxes, trunks, etc.). By arranging multiple low-frequency antennas inside and outside the vehicle, it is possible to effectively cover key areas around the vehicle (such as near the doors, in the cockpit, etc.), ensuring that the smart key can be detected in different locations. If a low-frequency antenna fails, the other antennas can still continue to work, thereby improving reliability. When the test results show that the low-frequency antenna module is available, multiple low-frequency antennas and two-way communication positioning modules will be used to work together to locate the smart key to ensure the accuracy and reliability of positioning. Specifically, when the low-frequency antenna module is working normally, the vehicle drives multiple low-frequency antennas inside and outside the vehicle (such as door handles, trunks, armrest boxes, etc.) to poll and transmit low-frequency signals (such as 125kHz) in sequence. The smart key receives low-frequency signals through the built-in three-dimensional antenna, and sends a response signal containing RSSI data to the vehicle through a high-frequency signal (such as 433MHz, which is usually sent by the two-way communication positioning module in the smart key, and the two-way communication positioning module in the smart key can communicate interactively with the two-way communication positioning module on the vehicle). The vehicle-side controller calculates the specific position of the smart key relative to the vehicle through the triangulation positioning algorithm based on the RSSI data received by multiple low-frequency antennas, and determines whether the smart key is inside or outside the vehicle. If the smart key is located inside the vehicle, the legitimacy of the smart key can be further verified, and the vehicle can be powered on.

[0038] In response to determining that the low frequency antenna module is unavailable, the smart key is located using the two-way communication positioning module.

[0039] In specific implementation, if the detection result shows that the low-frequency antenna module is unavailable (such as the low-frequency driver chip is damaged or all low-frequency antennas are ineffective), the two-way communication positioning module is enabled, and the Bluetooth low-power communication module on the vehicle side actively transmits a wake-up signal to the smart key, and limits the signal field strength of the Bluetooth low-power communication module to a certain range to ensure that the smart key can only receive the signal within the vehicle. After receiving the wake-up signal, the smart key replies with a reply signal containing identity authentication and other information. The vehicle-side Bluetooth low-power communication module determines whether the smart key is within the effective range of the vehicle based on the received reply signal. If the smart key is in a legal position and passes identity authentication, the vehicle is allowed to power on.

[0040] In this embodiment, by combining multiple low-frequency antennas and a two-way communication positioning module, it has a strong fault tolerance capability, and even if some hardware modules fail, the smart key positioning task can still be completed. It can automatically select the best positioning method according to the status of the low-frequency antenna module without user intervention, thereby improving the convenience and intelligence level of car use. The combination of the low-frequency antenna module and the two-way communication positioning module can ensure the accuracy of smart key positioning. When the low-frequency antenna module is unavailable, the two-way communication positioning module can take over the positioning task to avoid functional loss due to hardware failure. At the same time, the IMMO antenna does not need to participate in positioning, thereby achieving a balance between cost optimization and functional guarantee.

[0041] In some embodiments, the positioning of the smart key using the two-way communication positioning module includes:

[0042] Using the two-way communication positioning module to transmit a wake-up signal with a preset signal field strength, so that the wake-up signal can cover a preset area in the vehicle;

[0043] In specific implementation, the preset signal field strength refers to the power setting when the two-way communication positioning module transmits the wake-up signal. The preset signal field strength needs to be accurately calculated and adjusted to ensure that the signal can cover the preset area in the car, while avoiding the signal being too strong and causing the smart key outside the car to be misjudged as inside the car. That is, the preset signal field strength should be sufficient to cover the preset area in the car (such as the cockpit, back seat, etc.), ensuring that the smart key can receive the wake-up signal at any position in the car, while preventing the smart key or other devices outside the car from receiving the signal, thereby enhancing the vehicle's anti-theft security. The two-way communication positioning module transmits a wake-up signal with a preset signal field strength. The signal is transmitted to cover the preset area in the car. The wake-up signal usually carries a specific identification code or encrypted information to ensure that only the bound smart key can recognize and reply. In some cases, the signal field strength may be dynamically adjusted according to environmental changes (such as the number of people in the car) to optimize the positioning effect.

[0044] In response to determining that the two-way communication positioning module receives a reply signal sent by the smart key to the wake-up signal, it is determined that the smart key is inside the vehicle.

[0045] During specific implementation, the two-way communication positioning module captures the reply signal sent by the smart key through its receiving antenna. The reply signal is usually a Bluetooth signal, carrying identity authentication information and signal strength data. The two-way communication positioning module decodes the received signal, extracts the key information therein, and verifies the legitimacy of the smart key before confirming the location of the smart key to ensure that the vehicle will not be started by an unauthorized smart key. The smart key usually contains encrypted identity information in the reply signal. The vehicle verifies whether the smart key is bound to the vehicle through decryption and matching. After successfully verifying the legitimacy of the smart key, because the two-way communication positioning module receives the reply signal sent by the smart key to the wake-up signal, indicating that the smart key can connect to the two-way communication positioning module of the vehicle, the smart key is considered to be in the vehicle, otherwise, the smart key is considered to be outside the vehicle.

[0046] In this embodiment, by limiting the signal field strength, it is possible to accurately determine whether the smart key is in the vehicle to avoid misjudgment. If the signal field strength is too strong, the smart key outside the vehicle may be misjudged as being inside the vehicle, thereby triggering the vehicle to start or unlock. The design of the preset signal field strength effectively prevents this situation. By accurately controlling the signal field strength, it is possible to effectively prevent interference from illegal smart keys or devices, thereby improving the safety of the vehicle. Reasonable signal field strength helps reduce vehicle power consumption and extend its service life.

[0047] In some embodiments, the method of positioning the smart key by using the multiple low-frequency antennas in the low-frequency antenna module and the two-way communication positioning module includes:

[0048] Transmitting low frequency signals using the multiple low frequency antennas;

[0049] In specific implementation, multiple low-frequency antennas are arranged at different locations inside and outside the car to ensure full coverage and precise positioning of the smart key. Multiple low-frequency antennas are activated in a predetermined order, and 125kHz low-frequency signals are transmitted in sequence. The signal of each low-frequency antenna covers a specific area to better locate the smart key. The low-frequency signal has a short propagation distance and strong penetration ability, which is suitable for waking up and locating smart keys at close range. The design of multiple antennas provides redundant paths. Even if an antenna fails, other low-frequency antennas can continue to work to ensure the reliability of positioning.

[0050] In response to determining that the two-way communication positioning module receives the signal strength indication data sent by the smart key for the low-frequency signal, the smart key is positioned according to the signal strength indication data.

[0051] In a specific implementation, a two-way communication positioning module (such as a Bluetooth low energy communication module) is used to receive and process the signal strength indication data sent by the smart key for the low frequency signal. The signal strength indication data includes but is not limited to the low frequency signal strength of the low frequency signal received by the smart key and the low frequency antenna identifier corresponding to the low frequency signal strength; the smart key can be positioned according to the low frequency signal strength and the low frequency antenna identifier corresponding to the low frequency signal strength, and if the smart key is positioned in the vehicle, the vehicle is allowed to be powered on to supply power to the engine and electrical equipment.

[0052] In this embodiment, multiple low-frequency antennas provide redundant paths to ensure normal operation when individual low-frequency antennas fail. Using multiple low-frequency antennas in the low-frequency antenna module and the two-way communication positioning module to locate the smart key ensures accurate positioning and security verification of the smart key. This not only improves the safety and reliability of the vehicle, but also optimizes the user experience.

[0053] In some embodiments, the signal strength indication data includes a low-frequency signal strength of a low-frequency signal received by the smart key and a low-frequency antenna identifier corresponding to the low-frequency signal strength; and locating the smart key according to the signal strength indication data includes:

[0054] determining a distance and an angle of the smart key relative to each low frequency antenna according to the low frequency signal strength and a low frequency antenna identifier corresponding to the low frequency signal strength;

[0055] In specific implementation, the signal strength indication data is the key data generated after the smart key receives the low-frequency signal, including the low-frequency signal strength, which indicates the strength of the low-frequency signal received by the smart key. The low-frequency signal strength is usually related to the distance between the smart key and the low-frequency antenna. The stronger the low-frequency signal strength, the closer the distance; the low-frequency antenna identifier, each low-frequency antenna has a unique identifier for identifying the signal source. The low-frequency antenna identifier can be used to determine which low-frequency antenna the low-frequency signal is emitted from. The emission source of the low-frequency signal is determined by the low-frequency antenna identifier, so as to distinguish it from the signals of multiple antennas. By analyzing the low-frequency signal strength, the distance between the smart key and each low-frequency antenna can be estimated, so as to further calculate the distance and angle of the smart key relative to each antenna. Using the relationship model between signal strength and distance, the low-frequency signal strength can be converted into a specific distance value. The signal propagation model (such as the free space path loss model) is usually used for conversion. The angular position of the smart key can be inferred by comparing the low-frequency signal strengths from multiple low-frequency antennas. The multi-low-frequency antenna layout allows the angle of the smart key to be calculated by triangulation or other positioning algorithms.

[0056] The smart key is positioned according to the distance and the angle.

[0057] In specific implementation, after determining the distance and angle of the smart key relative to each low-frequency antenna, the smart key can be accurately positioned. Combined with the distance and angle of the smart key relative to each low-frequency antenna, a triangulation positioning algorithm is used to calculate the three-dimensional position of the smart key. Based on the calculated position of the smart key, it is determined whether it is located within a preset area in the vehicle, thereby determining whether to allow the vehicle to be powered on or unlocked.

[0058] In this embodiment, the distance and angle of the smart key relative to each low-frequency antenna can be determined by combining the low-frequency signal strength and the low-frequency antenna identifier corresponding to the low-frequency signal strength, so as to locate the smart key. Not only the distance is considered, but also the angle information is combined to provide a more comprehensive positioning capability. Through the precise analysis of the signal strength indication data, the high-precision positioning of the smart key is achieved, which not only improves the positioning capability, but also enhances the safety of the vehicle and the user experience.

[0059] In some embodiments, the low-frequency antenna module includes a low-frequency driving chip and at least one low-frequency antenna; the step of detecting whether the low-frequency antenna module is available includes:

[0060] Detecting whether the low-frequency drive chip fails;

[0061] In specific implementation, the low-frequency driver chip is used to generate a low-frequency signal and transmit it through a low-frequency antenna, modulate the signal to carry the necessary information, and manage the activation and signal transmission order of multiple low-frequency antennas. Detecting whether the low-frequency driver chip fails is a prerequisite for ensuring the normal operation of the entire low-frequency antenna module. Chip failure may cause the antenna to be unable to transmit low-frequency signals, thereby affecting the positioning of the smart key and the start of the vehicle. Detecting whether the low-frequency driver chip fails includes detecting whether the connection between the low-frequency driver chip and other circuit components is normal, ensuring that there is no short circuit or open circuit, and can also monitor the operating temperature and supply voltage of the low-frequency driver chip in real time to prevent failures caused by overheating or abnormal voltage. The low-frequency driver chip may have a fault code recording function, and the specific fault type is identified by reading the fault code. If a fault is detected in the low-frequency driver chip (such as the signal cannot be generated normally or the output is abnormal), the low-frequency driver chip fault will be marked, and the low-frequency antenna module will be further determined to be unavailable. If the low-frequency driver chip passes all tests, it is confirmed that its function is normal and allows the status of each low-frequency antenna to continue to be detected.

[0062] In response to determining that the low-frequency driving chip fails, determining that the low-frequency antenna module is unavailable;

[0063] In specific implementation, a low-frequency driver chip failure may result in the inability to generate a low-frequency signal of a specific frequency, directly affecting the wake-up and positioning of the smart key. Even if the signal is successfully generated, problems in the modulation process will cause the signal to fail to carry the correct information. A low-frequency driver chip failure may affect the control of multiple low-frequency antennas, resulting in the inability to perform effective positioning operations. Therefore, if it is determined that the low-frequency driver chip has failed, it is determined that the low-frequency antenna module is unavailable.

[0064] In response to determining that the low frequency driving chip is not faulty, using the low frequency driving chip to detect whether each low frequency antenna in the low frequency antenna module is faulty, and determining a first number of low frequency antennas that are faulty and a second number of low frequency antennas that are not faulty;

[0065] In specific implementation, after detecting that the low-frequency driver chip is working properly, each low-frequency antenna in the low-frequency antenna module can be further detected. The normal state of the low-frequency driver chip indicates that it can correctly generate and modulate the low-frequency signal, which provides a basis for low-frequency antenna detection. The low-frequency antenna module is usually composed of multiple low-frequency antennas, which are distributed in different positions of the vehicle. Detecting whether each low-frequency antenna has a fault is the key to ensuring the accuracy of smart key positioning and system reliability. Usually, the low-frequency driver chip activates each low-frequency antenna in turn, transmits a test signal, monitors the signal transmission of each antenna, confirms whether the signal is transmitted normally through a feedback mechanism, and detects whether the signal strength emitted by each antenna is within the normal range. Abnormal signal strength may indicate an antenna fault, and check whether the antenna circuit has a short circuit, a break or other electrical problems. After completing the detection of each low-frequency antenna, the first number of low-frequency antennas that have failed and the second number of low-frequency antennas that have not failed are recorded. By detecting each antenna one by one, the faulty antenna can be accurately identified and located, which is convenient for subsequent repair and maintenance. Even if some antennas fail, they can continue to work through the remaining normal antennas, which improves the fault tolerance and reliability of the system.

[0066] In response to determining that the first number is equal to the number of all low frequency antennas in the low frequency antenna module, determining that the low frequency antenna module is unavailable;

[0067] In specific implementation, when the first number is equal to the number of all low-frequency antennas in the low-frequency antenna module, it indicates that all low-frequency antennas have failed. The low-frequency antenna module cannot complete its basic functions and is therefore judged to be unavailable. By testing one by one to confirm that each antenna is not working properly, the accuracy of the judgment is ensured. Since all antennas have failed, the module cannot transmit low-frequency signals, and thus cannot wake up and locate the smart key. After confirming that the low-frequency antenna module is unavailable, appropriate measures need to be taken to ensure the safety of the vehicle and user experience. The spare two-way communication positioning module can be enabled to locate the smart key to ensure that the vehicle can still be started and unlocked normally. The user is prompted through the dashboard or other user interface that the low-frequency antenna module is unavailable, and the user is advised to check and repair it, and possible causes of failure and repair suggestions are provided to help users quickly solve the problem.

[0068] In response to determining that the second number is greater than or equal to a preset number, it is determined that the low-frequency antenna module is available.

[0069] In specific implementation, when the second number is greater than or equal to a preset number (the preset number is a threshold set according to actual needs and redundant design to ensure that even if some low-frequency antennas fail, the remaining antennas can still meet the positioning requirements. For example, the preset number can be set to 2), it indicates that although some low-frequency antennas fail, there are still a sufficient number of antennas that can work normally, and it is determined that the low-frequency antenna module is available. After confirming that the low-frequency antenna module is available, the normally functioning low-frequency antenna can be used to continue to locate the smart key. If necessary, the working parameters of the normal antenna may be dynamically adjusted to optimize signal coverage and positioning accuracy.

[0070] In this embodiment, through comprehensive fault detection, the abnormality of the low-frequency drive chip can be identified and processed in time, avoiding positioning failure caused by chip failure. The detection process ensures that the vehicle will enter the start or unlock process only when the low-frequency drive chip functions normally, thereby improving vehicle safety. The redundant design of multiple low-frequency antennas can continue to work normally when some low-frequency antennas fail, thereby improving fault tolerance. By determining the number of antennas that have not failed, the normal operation of the low-frequency antenna module and the positioning accuracy of the smart key are ensured, which not only improves the reliability and safety of the vehicle, but also optimizes the user experience and meets the high requirements of modern vehicles for entry and start functions without smart keys.

[0071] In some embodiments, the method of positioning the smart key by using the multiple low-frequency antennas in the low-frequency antenna module and the two-way communication positioning module includes:

[0072] Determine a low-frequency antenna that has not failed in the low-frequency antenna module as a target low-frequency antenna;

[0073] In specific implementation, the low-frequency driver chip usually activates each low-frequency antenna in turn, transmits a test signal, monitors the signal transmission of each antenna, confirms whether the signal is transmitted normally through a feedback mechanism, and detects whether the signal strength emitted by each antenna is within the normal range. Abnormal signal strength may indicate an antenna failure. It can also check whether the antenna circuit has a short circuit, open circuit or other electrical problems. After completing the detection of each low-frequency antenna, identify the low-frequency antenna that has not failed, and mark the low-frequency antenna that has not failed as the target low-frequency antenna.

[0074] Determining the target transmission power of the target low-frequency antenna according to the number of the target low-frequency antennas, and transmitting the low-frequency signal with the target transmission power by using the target low-frequency antenna;

[0075] In specific implementation, the number of target low-frequency antennas directly affects the signal coverage and strength. Therefore, it is necessary to adjust the transmission power according to the number of target low-frequency antennas, that is, determine the target transmission power of the target low-frequency antenna. By optimizing the transmission power, it is possible to reduce unnecessary power consumption and interference while ensuring signal coverage, thereby improving the accuracy of smart key positioning.

[0076] In response to determining that the two-way communication positioning module receives the signal strength indication data sent by the smart key for the low-frequency signal, the smart key is positioned according to the signal strength indication data.

[0077] In a specific implementation, a two-way communication positioning module (such as a Bluetooth low energy communication module) is used to receive and process the signal strength indication data sent by the smart key for the low frequency signal. The signal strength indication data includes but is not limited to the low frequency signal strength of the low frequency signal received by the smart key and the low frequency antenna identifier corresponding to the low frequency signal strength; the smart key can be positioned according to the low frequency signal strength and the low frequency antenna identifier corresponding to the low frequency signal strength, and if the smart key is positioned in the vehicle, the vehicle is allowed to be powered on to supply power to the engine and electrical equipment.

[0078] In this embodiment, by selecting the target antenna and optimizing the transmission power, efficient smart key positioning can still be achieved in the case of partial antenna failure. While ensuring signal coverage, unnecessary power consumption and interference are reduced, thereby improving the accuracy of smart key positioning.

[0079] In some embodiments, determining the target transmission power of the target low-frequency antenna according to the number of the target low-frequency antennas includes:

[0080] Determine the difference between the number of the target low-frequency antennas and a preset number;

[0081] In specific implementation, when the number of target low-frequency antennas is greater than or equal to a preset number (the preset number is a threshold set based on actual needs and redundant design to ensure that even if some low-frequency antennas fail, the remaining antennas can still meet positioning requirements. Exemplarily, the preset number can be set to 2), it indicates that although some low-frequency antennas have failed, there are still a sufficient number of antennas that can work normally. Therefore, the difference between the currently available number of target low-frequency antennas and the preset number is determined to evaluate the required transmission power adjustment range. Specifically, the difference = the number of target low-frequency antennas - the preset number.

[0082] Determine an increase coefficient of the transmission power of the target low-frequency antenna according to the difference;

[0083] In specific implementation, a transmission power increase coefficient is determined based on the calculated difference to compensate for the insufficient signal coverage that may be caused by the reduction in the number of antennas. The increase coefficient is a proportional factor used to adjust the transmission power. Specifically, Among them, A represents the increase coefficient, △X represents the difference, B represents the number of all low-frequency antennas in the low-frequency antenna module, and e represents the natural constant. The larger the difference, the larger the increase coefficient is usually to ensure that the signal strength can make up for the impact of the reduction in the number of antennas. You can also use a preset mapping relationship or algorithm to dynamically determine the increase coefficient based on the difference.

[0084] The product of the increase coefficient and the initial transmission power of the target low-frequency antenna is determined as the target transmission power.

[0085] In specific implementation, the initial transmit power is the standard transmit power when all antennas are working normally. The initial transmit power is multiplied by the increase factor to obtain the adjusted target transmit power. The target transmit power will be used for the currently available target antenna to ensure signal strength and coverage, and improve the positioning accuracy of the smart key.

[0086] In this embodiment, the transmission power is dynamically adjusted according to the actual number of available target low-frequency antennas to ensure that even when the number of antennas is reduced, the signal coverage and strength still meet the positioning requirements. Even if some antennas fail, normal functions can be maintained through transmission power adjustment, thereby improving the reliability of positioning, thereby improving the reliability and safety of vehicle power-on, and meeting the high requirements of modern vehicles for non-smart key entry and starting functions.

[0087] The smart key in the above embodiment is a key that can realize keyless entry and keyless start functions through wireless communication technology. Compared with traditional mechanical keys, it has increased convenience, safety and intelligence, and is a technology commonly used in modern cars. The hardware components of the smart key include a low-frequency signal receiving module, a two-way communication positioning module, a battery, a button, etc. Some smart keys are also equipped with a display or a touch screen to display the vehicle status or perform more complex operations.

[0088] The two-way communication positioning module also includes an ultra-wideband communication module, which is a hardware component for realizing ultra-wideband communication. It integrates the core functions of UWB (Ultra Wide Band) technology and is mainly used for wireless communication and precise positioning. The ultra-wideband communication module realizes short-distance high-speed data transmission through UWB signals, and realizes centimeter-level precise positioning by calculating the arrival time or flight time of the signal. UWB technology is based on pulse radio, which transmits data within an ultra-wide spectrum range by sending extremely short radio pulses (usually nanoseconds). High-precision positioning can be achieved by using triangulation or multilateral measurement (TDoA, Time Difference of Arrival) through signal interaction between multiple ultra-wideband communication modules. The ultra-wideband communication module supports high-speed data transmission and is suitable for transmitting large amounts of data within a short distance. The ultra-wideband communication module can be used in the vehicle's keyless entry system, and can determine whether the smart key is inside or outside the vehicle through centimeter-level positioning accuracy to improve safety.

[0089] It should be noted that the method of the embodiment of the present application can be performed by a single device, such as a computer or server. The method of this embodiment can also be applied to a distributed scenario and completed by multiple devices cooperating with each other. In the case of such a distributed scenario, one of the multiple devices can only perform one or more steps in the method of the embodiment of the present application, and the multiple devices will interact with each other to complete the described method.

[0090] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0091] Based on the same inventive concept, corresponding to any of the above-mentioned embodiment methods, the present application also provides a vehicle control device.

[0092] refer to Figure 2 , the vehicle control device comprises:

[0093] A detection module 701, configured to detect whether the low frequency antenna module is available in response to receiving a power-on request;

[0094] A positioning module 702, which is configured to locate the smart key using the low-frequency antenna module and / or the two-way communication positioning module based on the detection result of the low-frequency antenna module;

[0095] The control module 703 is configured to control the vehicle to power on in response to determining that the smart key is inside the vehicle through positioning.

[0096] Furthermore, the positioning module 702 is specifically used for:

[0097] In response to determining that the low-frequency antenna module is available, locating the smart key using a plurality of low-frequency antennas in the low-frequency antenna module and the two-way communication positioning module;

[0098] In response to determining that the low frequency antenna module is unavailable, the smart key is located using the two-way communication positioning module.

[0099] Furthermore, the positioning module 702 is further specifically configured to:

[0100] Using the two-way communication positioning module to transmit a wake-up signal with a preset signal field strength, so that the wake-up signal can cover a preset area in the vehicle;

[0101] In response to determining that the two-way communication positioning module receives a reply signal sent by the smart key to the wake-up signal, it is determined that the smart key is inside the vehicle.

[0102] Furthermore, the positioning module 702 is further specifically configured to:

[0103] Transmitting low frequency signals using the multiple low frequency antennas;

[0104] In response to determining that the two-way communication positioning module receives the signal strength indication data sent by the smart key for the low-frequency signal, the smart key is positioned according to the signal strength indication data.

[0105] Furthermore, the positioning module 702 is further specifically configured to:

[0106] determining a distance and an angle of the smart key relative to each low frequency antenna according to the low frequency signal strength and a low frequency antenna identifier corresponding to the low frequency signal strength;

[0107] The smart key is positioned according to the distance and the angle.

[0108] Furthermore, the detection module 701 is specifically used for:

[0109] Detecting whether the low-frequency drive chip fails;

[0110] In response to determining that the low-frequency driving chip fails, determining that the low-frequency antenna module is unavailable;

[0111] In response to determining that the low frequency driving chip is not faulty, using the low frequency driving chip to detect whether each low frequency antenna in the low frequency antenna module is faulty, and determining a first number of low frequency antennas that are faulty and a second number of low frequency antennas that are not faulty;

[0112] In response to determining that the first number is equal to the number of all low frequency antennas in the low frequency antenna module, determining that the low frequency antenna module is unavailable;

[0113] In response to determining that the second number is greater than or equal to a preset number, it is determined that the low-frequency antenna module is available.

[0114] Furthermore, the positioning module 702 is further specifically configured to:

[0115] Determine a low-frequency antenna that has not failed in the low-frequency antenna module as a target low-frequency antenna;

[0116] Determining the target transmission power of the target low-frequency antenna according to the number of the target low-frequency antennas, and transmitting the low-frequency signal with the target transmission power by using the target low-frequency antenna;

[0117] In response to determining that the two-way communication positioning module receives the signal strength indication data sent by the smart key for the low-frequency signal, the smart key is positioned according to the signal strength indication data.

[0118] Furthermore, the positioning module 702 is further specifically configured to:

[0119] Determine the difference between the number of the target low-frequency antennas and a preset number;

[0120] Determine an increase coefficient of the transmission power of the target low-frequency antenna according to the difference;

[0121] The product of the increase coefficient and the initial transmission power of the target low-frequency antenna is determined as the target transmission power.

[0122] For the convenience of description, the above device is described in terms of functions divided into various modules. Of course, when implementing the present application, the functions of each module can be implemented in the same or multiple software and / or hardware.

[0123] The device of the above embodiment is used to implement the corresponding vehicle control method in any of the above embodiments, and has the beneficial effects of the corresponding method embodiment, which will not be repeated here.

[0124] Based on the same inventive concept, corresponding to any of the above-mentioned embodiments and methods, the present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the vehicle control method described in any of the above embodiments is implemented.

[0125] Figure 3 A more specific schematic diagram of the hardware structure of an electronic device provided in this embodiment is shown, and the device may include: a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040 are connected to each other through the bus 1050 in the device.

[0126] The processor 1010 can be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0127] The memory 1020 may be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1020 may store an operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program codes are stored in the memory 1020 and are called and executed by the processor 1010.

[0128] The input / output interface 1030 is used to connect the input / output module to realize information input and output. The input / output module can be configured in the device as a component (not shown in the figure), or it can be externally connected to the device to provide corresponding functions. The input device may include a keyboard, a mouse, a touch screen, a microphone, various sensors, etc., and the output device may include a display, a speaker, a vibrator, an indicator light, etc.

[0129] The communication interface 1040 is used to connect a communication module (not shown) to realize communication interaction between the device and other devices. The communication module can realize communication through a wired mode (such as USB, network cable, etc.) or a wireless mode (such as mobile network, WIFI, Bluetooth, etc.).

[0130] The bus 1050 includes a path that transmits information between the various components of the device (eg, the processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040).

[0131] It should be noted that, although the above device only shows the processor 1010, the memory 1020, the input / output interface 1030, the communication interface 1040 and the bus 1050, in the specific implementation process, the device may also include other components necessary for normal operation. In addition, it can be understood by those skilled in the art that the above device may also only include the components necessary for implementing the embodiments of the present specification, and does not necessarily include all the components shown in the figure.

[0132] The electronic device of the above embodiment is used to implement the corresponding vehicle control method in any of the above embodiments, and has the beneficial effects of the corresponding method embodiment, which will not be repeated here.

[0133] Based on the same inventive concept, corresponding to any of the above-mentioned embodiment methods, the present application also provides a non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the vehicle control method described in any of the above embodiments.

[0134] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device.

[0135] The computer instructions stored in the storage medium of the above embodiments are used to enable the computer to execute the vehicle control method described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0136] Based on the same concept, corresponding to any of the above-mentioned embodiment methods, the present application also provides a computer program product, including computer program instructions. When the computer program instructions are run on a computer, the computer executes the method described in any of the above embodiments, which has the beneficial effects of the corresponding method embodiments and will not be repeated here.

[0137] It is understandable that before using the technical solutions of each embodiment of the present disclosure, the type, scope of use, usage scenarios, etc. of the personal information involved will be informed to the user in an appropriate manner, and the user's authorization will be obtained.

[0138] For example, in response to receiving an active request from a user, a prompt message is sent to the user to clearly remind the user that the operation requested to be performed will require obtaining and using the user's personal information. Thus, the user can independently choose whether to provide personal information to software or hardware such as an electronic device, application, server, or storage medium that performs the operation of the technical solution of the present disclosure according to the prompt message.

[0139] As an optional but non-limiting implementation, in response to receiving the user's active request, the prompt information may be sent to the user in the form of a pop-up window, in which the prompt information may be presented in text form. In addition, the pop-up window may also carry a selection control for the user to choose "agree" or "disagree" to provide personal information to the electronic device.

[0140] It is understandable that the above notification and the process of obtaining user authorization are merely illustrative and do not constitute a limitation on the implementation of the present disclosure. Other methods that meet relevant laws and regulations may also be applied to the implementation of the present disclosure.

[0141] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0142] In addition, to simplify the description and discussion, and in order not to make the embodiments of the present application difficult to understand, the known power supply / ground connection with the integrated circuit (IC) chip and other components may or may not be shown in the provided drawings. In addition, the device can be shown in the form of a block diagram to avoid making the embodiments of the present application difficult to understand, and this also takes into account the fact that the details of the implementation of these block diagram devices are highly dependent on the platform to be implemented in the embodiments of the present application (that is, these details should be fully within the scope of understanding of those skilled in the art). In the case of elaborating specific details (e.g., circuits) to describe exemplary embodiments of the present application, it is obvious to those skilled in the art that the embodiments of the present application can be implemented without these specific details or when these specific details are changed. Therefore, these descriptions should be considered to be illustrative rather than restrictive.

[0143] Although the present application has been described in conjunction with specific embodiments of the present application, many replacements, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may use the embodiments discussed.

[0144] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the present application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the protection scope of the present application.

Claims

1. A vehicle control method, characterized in that: The vehicle includes a low-frequency antenna module and a two-way communication positioning module; the method includes: In response to receiving the power-on request, detecting whether the low-frequency antenna module is available; Based on the detection result of the low-frequency antenna module, the smart key is positioned using the low-frequency antenna module and / or the two-way communication positioning module; In response to determining that the smart key is inside the vehicle through positioning, the vehicle is controlled to be powered on.

2. The vehicle control method according to claim 1, characterized in that: The low-frequency antenna module includes a plurality of low-frequency antennas; based on the detection result of the low-frequency antenna module, the low-frequency antenna module and / or the two-way communication positioning module are used to locate the smart key, including: In response to determining that the low-frequency antenna module is available, locating the smart key using a plurality of low-frequency antennas in the low-frequency antenna module and the two-way communication positioning module; In response to determining that the low frequency antenna module is unavailable, the smart key is located using the two-way communication positioning module.

3. The vehicle control method according to claim 2, characterized in that: The method of positioning the smart key by using the two-way communication positioning module includes: Using the two-way communication positioning module to transmit a wake-up signal with a preset signal field strength, so that the wake-up signal can cover a preset area in the vehicle; In response to determining that the two-way communication positioning module receives a reply signal sent by the smart key to the wake-up signal, it is determined that the smart key is inside the vehicle.

4. The vehicle control method according to claim 2, characterized in that: The method of positioning the smart key by using the multiple low-frequency antennas in the low-frequency antenna module and the two-way communication positioning module includes: Transmitting low frequency signals using the multiple low frequency antennas; In response to determining that the two-way communication positioning module receives the signal strength indication data sent by the smart key for the low-frequency signal, the smart key is positioned according to the signal strength indication data.

5. The vehicle control method according to claim 4, characterized in that: The signal strength indication data includes a low frequency signal strength of a low frequency signal received by the smart key and a low frequency antenna identifier corresponding to the low frequency signal strength; The positioning of the smart key according to the signal strength indication data includes: determining a distance and an angle of the smart key relative to each low frequency antenna according to the low frequency signal strength and a low frequency antenna identifier corresponding to the low frequency signal strength; The smart key is positioned according to the distance and the angle.

6. The vehicle control method according to claim 1, characterized in that: The low-frequency antenna module includes a low-frequency driving chip and at least one low-frequency antenna; The detecting whether the low-frequency antenna module is available includes: Detecting whether the low-frequency drive chip fails; In response to determining that the low-frequency driving chip fails, determining that the low-frequency antenna module is unavailable; In response to determining that the low frequency driving chip is not faulty, using the low frequency driving chip to detect whether each low frequency antenna in the low frequency antenna module is faulty, and determining a first number of low frequency antennas that are faulty and a second number of low frequency antennas that are not faulty; In response to determining that the first number is equal to the number of all low frequency antennas in the low frequency antenna module, determining that the low frequency antenna module is unavailable; In response to determining that the second number is greater than or equal to a preset number, it is determined that the low-frequency antenna module is available.

7. The vehicle control method according to claim 2, characterized in that: The method of positioning the smart key by using the multiple low-frequency antennas in the low-frequency antenna module and the two-way communication positioning module includes: Determine a low-frequency antenna that has not failed in the low-frequency antenna module as a target low-frequency antenna; Determine the target transmission power of the target low-frequency antenna according to the number of the target low-frequency antennas, and use the target low-frequency antenna to transmit a low-frequency signal at the target transmission power; In response to determining that the two-way communication positioning module receives the signal strength indication data sent by the smart key for the low-frequency signal, the smart key is positioned according to the signal strength indication data.

8. The vehicle control method according to claim 7, characterized in that: The determining the target transmission power of the target low-frequency antenna according to the number of the target low-frequency antennas includes: Determine the difference between the number of the target low-frequency antennas and a preset number; Determine an increase coefficient of the transmission power of the target low-frequency antenna according to the difference; The product of the increase coefficient and the initial transmission power of the target low-frequency antenna is determined as the target transmission power.

9. A vehicle control device, characterized in that: include: a detection module, configured to detect whether the low frequency antenna module is available in response to receiving a power-on request; a positioning module configured to locate the smart key based on the detection result of the low-frequency antenna module by using the low-frequency antenna module and / or the two-way communication positioning module; The control module is configured to control the vehicle to power on in response to determining that the smart key is inside the vehicle through positioning.

10. A vehicle, characterized in that: The vehicle includes the vehicle control device according to claim 9.

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