Control method and system for sensing equipment in vehicle and vehicle

Abstract

The embodiment of the invention provides a control method and system for sensing equipment in a vehicle and the vehicle. The method comprises the steps that in response to the fact that the gear of the vehicle is a first gear and the vehicle generates a braking signal, the sensing equipment is controlled to be switched from a standby state to a working state, and the first gear is used for representing that the vehicle is in a static state; the sensing device in the working state is used for obtaining environment information corresponding to the vehicle, and the environment information is used for representing the environment state of the environment where the vehicle is located in the target direction; and in response to the fact that the gear of the vehicle is switched from the first gear to a second gear, the sensing device is controlled to output the environment information, and the second gear is used for representing that the vehicle is switched from the static state to the running state in the target direction. The technical problem that the control efficiency of the sensing equipment in the vehicle is low is solved.

Description

Technical Field

[0001] This application relates to the field of vehicle electronics technology, and more particularly to a control method, system, and vehicle for sensing devices in a vehicle. Background Technology

[0002] Currently, in the control of vehicle sensors, especially in reversing scenarios—that is, when the driver shifts to reverse (R) gear—the sensors (such as reversing radar) are activated and begin detecting the vehicle's surroundings. This method relies on the transmission of bus signals and the response of the vehicle's electronic control unit (ECU), inevitably introducing a time delay. The same delay issue also occurs in forward driving scenarios.

[0003] The aforementioned delay may prevent the vehicle from providing the driver with audible or tactile warning signals within the specified time (e.g., less than 0.6 seconds), increasing safety hazards when reversing or starting. Therefore, the technical problem of low control efficiency of sensing devices in vehicles still exists. Summary of the Invention

[0004] This application provides a control method, system, and vehicle for sensing devices in a vehicle, aiming to improve the technical problem of low control efficiency of sensing devices in vehicles.

[0005] According to one aspect of the embodiments of this application, a control method for a sensing device in a vehicle is provided. The method may include: in response to the vehicle being in a first gear and generating a braking signal, controlling the sensing device to switch from a standby state to an operating state, wherein the first gear indicates that the vehicle is stationary; using the sensing device in the operating state to acquire environmental information corresponding to the vehicle, wherein the environmental information indicates the environmental state of the environment in which the vehicle is located in a target direction; and in response to the vehicle being in a second gear, controlling the sensing device to output environmental information, wherein the second gear indicates that the vehicle has switched from a stationary state to a driving state traveling in the target direction.

[0006] Optionally, the method further includes: in response to the vehicle being in the first gear, controlling the sensing device to be in a standby state, wherein the power consumption of the sensing device in the standby state is lower than a power consumption threshold; and in response to the controller of the sensing device receiving a braking signal while the sensor is in the standby state, determining that the vehicle has generated a braking signal.

[0007] Optionally, controlling the sensing device to be in standby mode in response to the vehicle being in the first gear includes: controlling the power supply device in the vehicle to be in the on state in response to the vehicle being in the first gear and the vehicle being powered on; and controlling the sensing device to be in standby mode in response to the sensing device receiving electrical energy provided by the power supply device in the on state.

[0008] Optionally, the vehicle includes a brake pedal, and in response to the controller of the sensing device receiving a braking signal while the sensor is in a standby state, determining that the vehicle has generated a braking signal includes: in response to the controller of the sensing device receiving a braking signal from the brake pedal via the vehicle network bus while the sensor is in a standby state, determining that the vehicle has generated a braking signal.

[0009] Optionally, in response to the vehicle being in first gear and the vehicle generating a braking signal, controlling the sensing device to switch from standby to operating state includes: in response to the vehicle being in first gear and the vehicle generating a braking signal, using the controller of the sensing device to control the sensing device to switch from standby to operating state.

[0010] Optionally, the vehicle includes a prompting device for providing prompting information corresponding to environmental information to the occupants of the vehicle. In response to the vehicle shifting from a first gear to a second gear, controlling the sensor device to output environmental information includes: in response to the vehicle shifting from a first gear to a second gear, outputting the environmental information to the prompting device via the vehicle network bus through the sensor device; the method further includes: acquiring the influence degree of the environmental information, wherein the influence degree represents the extent to which the environmental information affects the vehicle's driving process; and outputting prompting information using the prompting device according to a prompting strategy corresponding to the influence degree, wherein the prompting strategy represents the rules for outputting prompting information on the prompting device.

[0011] Optionally, the environmental information includes first environmental information and second environmental information. The first environmental information represents the environmental state of the vehicle's environment in the reversing direction, and the second environmental information represents the environmental state of the vehicle's environment in the forward direction. The second gear includes a reverse gear and a forward gear. The sensing devices include a reversing sensor and a forward sensor. In response to the vehicle's gear shifting from the first gear to the second gear, the sensing devices are controlled to output environmental information, including: in response to the vehicle's gear shifting from the first gear to the reverse gear, controlling the reversing sensor to output the first environmental information; and in response to the vehicle's gear shifting from the first gear to the forward gear, controlling the forward sensor to output the second environmental information.

[0012] According to another aspect of the embodiments of this application, a control device for a sensing device in a vehicle is also provided. The device may include: a first control module, configured to control the sensing device to switch from a standby state to an operating state in response to the vehicle being in a first gear and the vehicle generating a braking signal, wherein the first gear indicates that the vehicle is stationary; an acquisition module, configured to acquire environmental information corresponding to the vehicle using the sensing device in the operating state, wherein the environmental information indicates the environmental state of the environment in which the vehicle is located in a target direction; and a second control module, configured to control the sensing device to output environmental information in response to the vehicle being in a second gear, wherein the second gear indicates that the vehicle has switched from a stationary state to a driving state traveling in the target direction.

[0013] According to another aspect of the embodiments of this application, a control system for a sensing device in a vehicle is also provided. The system may include: a controller and a sensing device, wherein the controller is configured to control the sensing device to switch from a standby state to an operating state in response to the vehicle being in a first gear and the vehicle generating a braking signal, wherein the first gear indicates that the vehicle is stationary; the sensing device is configured to acquire environmental information corresponding to the vehicle, wherein the environmental information indicates the environmental state of the environment in which the vehicle is located in a target direction; and to output environmental information in response to the vehicle shifting from the first gear to a second gear, wherein the second gear indicates that the vehicle has switched from a stationary state to a driving state traveling in the target direction.

[0014] Optionally, the system also includes an onboard network bus, wherein the onboard network bus is used to transmit a braking signal to the controller in response to receiving a braking signal from the vehicle's brake pedal.

[0015] According to another aspect of the embodiments of this application, an electronic device is also provided, including a processor and a memory. The memory is used to store computer programs. The processor is used to execute the programs stored in the memory to implement the above-described method.

[0016] According to another aspect of the embodiments of this application, a computer-readable storage medium is also provided. This computer-readable storage medium includes a stored program, wherein, when the program is executed, it controls the device where the computer-readable storage medium is located to perform the methods described in the embodiments of this application.

[0017] According to another aspect of the embodiments of this application, a computer program product is provided, including a computer program that, when executed by a processor, implements the above-described method.

[0018] According to another aspect of the embodiments of this application, a vehicle is provided, including a processor and a memory, wherein the memory is used to store a computer program; and the processor is used to execute the computer program stored in the memory to implement the above-described method.

[0019] In this embodiment, in response to the vehicle being in the first gear and generating a braking signal, the sensing device is controlled to switch from a standby state to an operating state. The first gear indicates that the vehicle is stationary. The sensing device in the operating state acquires environmental information corresponding to the vehicle, where the environmental information represents the environmental state of the vehicle's surroundings in the target direction. In response to the vehicle shifting from the first gear to the second gear, the sensing device outputs environmental information, where the second gear indicates that the vehicle has shifted from a stationary state to a driving state in the target direction. In other words, this embodiment eliminates the delay in sensor activation after gear shifting in related technologies by detecting the braking signal when the vehicle is stationary in the first gear and waking the sensing device to the operating state in advance based on the braking signal. This means that the sensing device has already entered the operating state and begun detecting the surrounding environment and collecting environmental information before the vehicle shifts from the first gear to the second gear, even after the braking signal is detected. Thus, when switching from a stationary state to the second gear, the sensing device can output pre-collected environmental information, which greatly shortens the time from gear change to providing environmental information, improves driving safety, and the above method does not require additional hardware investment. It only adds braking signal acquisition and optimizes the realization of efficient and real-time environmental perception, thereby achieving the technical effect of improving the control efficiency of sensing devices in the vehicle and solving the technical problem of low control efficiency of sensing devices in the vehicle. Attached Figure Description

[0020] Figure 1 This is a flowchart of a control method for a sensing device in a vehicle according to an embodiment of this application;

[0021] Figure 2 This is a flowchart illustrating the working method of a reversing radar in related technologies;

[0022] Figure 3 This is a flowchart illustrating a reversing radar operation method according to an embodiment of this application;

[0023] Figure 4 This is a schematic diagram of a control device for a sensing device in a vehicle according to an embodiment of this application;

[0024] Figure 5 This is a schematic diagram of a control system for a sensing device in a vehicle according to an embodiment of this application;

[0025] Figure 6This is a structural diagram of the electronic device provided in the embodiments of this application. Detailed Implementation

[0026] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0027] In related technologies, regarding the control process of the sensing device, if the vehicle successfully shifts from the first gear to the second gear, the sensing device can be switched from standby to operating state. The operating sensors then begin detecting the environmental conditions of the vehicle's surroundings, generating environmental information, and outputting this information. However, the entire process described above, from completing the gear shift, switching the sensor's operating state, controlling the sensor to detect the environmental conditions, to outputting the environmental information, is time-consuming. Therefore, the technical problem of low control efficiency for the vehicle's sensing device remains.

[0028] The control methods of the sensing devices in the above-mentioned related technologies are explained below, with the sensing device being a reversing radar system, the second gear being reverse gear, the control scenario of the sensing device being a reversing scenario, and the sensing device being a radar or camera in front of the vehicle, the second gear being forward gear, and the control scenario of the sensing device being a forward scenario.

[0029] In related technologies, the control of reversing radar systems for reversing scenarios involves the vehicle's ECU sending a start signal to the reversing radar system only when the driver shifts the vehicle into reverse (R gear), causing the system to transition from a low-power standby state to an operational state. This process may include multiple steps such as receiving the R gear shift signal, radar hardware initialization, and environmental scanning initiation, each requiring a certain amount of time to complete. This operating mode results in a significant time delay between receiving the gear change signal and outputting environmental information, directly impacting the sensor's response speed and control efficiency.

[0030] In summary, the low control efficiency of the sensing devices in the aforementioned technologies mainly manifests in the following aspects: Gear signal response delay; for example, from the driver operating the gear to the vehicle ECU receiving and parsing the R gear signal, and then issuing the command to start the radar, the entire process may be prolonged due to delays in bus signal transmission. Hardware startup time; for example, the reversing radar requires a certain amount of time to wake up from standby mode, complete initialization, and begin effective operation. The inability to respond immediately reduces control efficiency. Information processing and output time; before the data collected by the radar is converted into environmental information and sent to the driver or vehicle control system, it still needs to undergo data processing and analysis, which also adds additional time.

[0031] The low control efficiency of the aforementioned vehicle's sensor equipment is particularly prominent in reversing scenarios, especially under the EU's R158 regulation. This regulation requires that within 0.6 seconds of the start of a reversing event, the driver be provided with an audible or tactile obstacle warning signal corresponding to the environmental information, and this warning signal must cover a designated area behind the vehicle. Crucially, the time from receiving the reverse gear bus signal to issuing the audible alarm bus signal must be controlled within 0.25 seconds. This strict time limit aims to ensure that the vehicle can respond quickly and warn the driver of potential rear obstacles during reversing, thereby reducing reversing accidents. However, the entire process from gear shifting to alarm signal generation in the aforementioned technologies often takes far longer than 0.25 seconds. Therefore, there is a significant technical problem that fails to meet the R158 regulation requirements; the control efficiency of the sensor equipment is insufficient to meet the high standard of rapid response, constituting an urgent need for technological improvement.

[0032] This application provides a control method for a vehicle charging sensor device, comprising: in response to the vehicle being in a first gear and the vehicle generating a braking signal, controlling the sensor device to switch from a standby state to an operating state, wherein the first gear is used to indicate that the vehicle is in a stationary state; using the sensor device in the operating state to acquire environmental information corresponding to the vehicle, wherein the environmental information is used to indicate the environmental state of the environment in which the vehicle is located in the target direction; in response to the vehicle being in a second gear, controlling the sensor device to output environmental information, wherein the second gear is used to indicate that the vehicle has switched from a stationary state to a driving state traveling in the target direction.

[0033] Compared to the closest prior art, this method pre-activates the sensor upon detecting a braking signal from a vehicle in first gear. That is, it uses the vehicle's braking signal as the trigger condition for pre-activating the sensor, instead of waiting until the vehicle actually shifts into reverse or drive. This allows the sensor to be operational before the gear shift, significantly reducing the time from the arrival of the gear change signal to the sensor's full functionality. By waking the sensor upon the appearance of the braking signal, the problem of gear signal response delay is cleverly avoided. The sensor has already completed initialization and environmental scanning preparations the instant the vehicle shifts from Park (P) to R or drive, and can directly output environmental information, eliminating the waiting time from gear recognition to device activation found in related technologies.

[0034] Furthermore, because the sensors are already operational before the vehicle's gear shift is complete, they can provide near-instantaneous obstacle warning signals to the driver based on pre-collected environmental information when the vehicle actually begins to reverse or move forward. This significantly reduces information processing and output time, ensuring that the warning information is transmitted within the legally mandated 0.6 seconds. Using this method, the total time from receiving the reverse gear signal to generating the obstacle warning signal is successfully controlled within 0.25 seconds, meeting the requirements of Regulation R158. Moreover, this method also applies to forward driving scenarios. By collecting braking signals, the sensors at the front of the vehicle can be activated, ensuring rapid response in all driving states and meeting the high standards of real-time feedback required by safety regulations. Faster sensor response speeds are directly linked to higher driving safety. In emergency situations, even a delay of a few seconds can lead to serious consequences. Therefore, this method, by eliminating unnecessary start-up delays, ensures that the vehicle can detect potential risks and warn the driver immediately when entering the reversing or starting phase, which is of great significance for accident prevention, pedestrian safety, and improving driver confidence.

[0035] In summary, the embodiments of this application significantly shorten the response time of the sensing device through the braking signal pre-start strategy, solving the technical problem of low control efficiency of the sensing device in the vehicle. This not only optimizes the user experience, but more importantly, ensures that the vehicle can quickly respond to environmental changes when reversing and starting, meeting stringent regulatory requirements, greatly improving driving safety, and achieving the technical effect of improving the control efficiency of the sensing device in the vehicle.

[0036] This application provides a control method for sensing devices in a vehicle. Please refer to [link / reference]. Figure 1 , Figure 1 This is a flowchart of a control method for a sensing device in a vehicle according to an embodiment of this application, which may include the following steps.

[0037] In step S110, in response to the vehicle being in first gear and the vehicle generating a braking signal, the control sensor is switched from standby to working state.

[0038] In step S110, the first gear position can be used to indicate that the vehicle is stationary. The first gear position can be P (Park). P position can be used to indicate that the vehicle is completely stationary and mechanically locked to prevent the vehicle from moving uncontrollably. The brake signal is a signal sent by the vehicle's braking system to the ECU when the driver applies the brake pedal, indicating that the vehicle has performed a braking operation. This brake signal can also be called a brake signal.

[0039] In this embodiment, the vehicle's gear position can be detected. If the vehicle is detected to be in first gear, the vehicle in first gear can be further detected, and a corresponding detection result can be obtained. After detecting the vehicle and obtaining the detection result, if the detection result indicates that the vehicle has generated a braking signal, the sensing device can be controlled to switch from standby mode to operating mode. The detection result can be used to indicate whether a vehicle in first gear has generated a braking signal. The detection result can refer to the process of determining whether the vehicle has generated a braking signal by monitoring the vehicle's braking system when the vehicle is in park (P) gear.

[0040] Optionally, it can be detected whether the vehicle is currently in first gear. This can be determined by reading the vehicle's internal gear information, for example, by obtaining the gear information through the vehicle's in-vehicle network. This in-vehicle network can be the vehicle's Controller Area Network (CAN) bus.

[0041] Optionally, if the vehicle's current gear position is detected as first gear, the braking system can be monitored to determine whether a braking signal is generated. For example, changes in the pressure of the brake pads or the hydraulic / pneumatic pressure of the braking system can be monitored and acquired in real time via the vehicle network to determine whether a braking signal is generated in the vehicle.

[0042] Optionally, the braking signal can refer to the brake bus signal, which is an indication signal sent by the vehicle's braking system to the ECU or other onboard systems. When the driver presses the brake pedal, the braking system can detect the action of pressing the brake pedal and convert it into an electrical signal, which is then broadcast through the vehicle's communication network (e.g., CAN bus) to instruct the various control units of the vehicle (e.g., engine control unit, body control unit, sensors, etc.) that the vehicle is performing a braking operation.

[0043] Optionally, sensing devices can refer to devices installed on the vehicle for sensing and detecting information about the surrounding environment. For example, the aforementioned sensing devices can be reversing radars, front-facing cameras, ultrasonic sensors, etc. These sensing devices can receive and process signals from the vehicle's surrounding environment to provide the driver with information about obstacles, pedestrians, other vehicles, etc., in the vicinity of the vehicle, thereby assisting driving decisions and improving driving safety.

[0044] Optionally, standby mode can refer to a low-power mode of the vehicle's sensors when they are not in use, with the aim of reducing energy consumption and extending the lifespan of the sensors. When the vehicle is in P (park) or the driver has not started the vehicle, most sensors are in standby mode. This means that the sensors do not actively collect and process environmental information, but remain in a low-power state, waiting to be activated by external signals (such as gear changes, braking signals, etc.). In standby mode, sensors minimize resource consumption, such as power and processor resources, and only enter active mode when they receive a working instruction.

[0045] Optionally, the working state can refer to the state in which the sensing device switches from standby to full functionality, capable of actively collecting and processing data, after receiving a start signal. When a braking signal is detected from the vehicle, the vehicle's sensing devices (such as reversing radar and front-facing camera) can be woken up from standby to working state, and begin to continuously or on-demand monitor the environment around the vehicle. Sensing devices in working state may consume more energy, but they also provide real-time perception of the surrounding environment, enabling them to provide necessary information to the driver or vehicle control system in a timely manner, such as obstacle detection, distance measurement, and the direction of object movement, thereby assisting driving decisions and improving driving safety. In this embodiment, the detection of the braking signal is the key factor triggering the sensing device to enter the working state from standby, ensuring that the device can prepare in advance and improving control efficiency.

[0046] Optionally, if a braking signal is detected, its validity can be analyzed to determine if it is a genuine braking operation. The process of analyzing the validity of the braking signal can also be combined with the vehicle's current gear information to confirm that the vehicle is in Park (P) gear. Once it is confirmed that the vehicle has generated a braking signal and is in Park, a pre-start command can be sent to the corresponding sensing device. This pre-start command allows the sensing device to quickly switch from a standby low-power state to an operational state, initiating initialization and preparing for environmental monitoring.

[0047] Optionally, after receiving the aforementioned pre-start command, the sensing device can perform a series of internal initialization operations, such as calibrating the sensor, starting the processor, and setting communication parameters. These initialization operations can be completed before the sensing device enters active monitoring to ensure data accuracy and system response speed. After completing initialization, the sensing device enters the working state of preparing for environmental monitoring.

[0048] In this embodiment, by pre-activating the sensing device when the vehicle generates a braking signal, a rapid switch from standby to operating state is achieved, effectively shortening the response time of the sensing device. In related technologies, the sensing device only starts working when the vehicle gear actually changes to a gear other than P, resulting in a significant delay between gear change and environmental information output. This embodiment, through pre-detection of the braking signal, enables the sensing device to enter a ready state before the gear change, significantly reducing system latency. The pre-activation mechanism ensures that the sensing device can start environmental monitoring immediately upon gear change, thereby improving the response speed to environmental changes, which is particularly important for reversing or starting scenarios requiring real-time feedback. This embodiment effectively shortens the time from receiving the R gear signal to issuing an audible alarm, ensuring completion within 0.25 seconds, meeting the stringent requirements of EU R158 regulations for reversing safety performance, and improving overall vehicle safety. Faster sensing device response means that the driver can obtain accurate information about the surrounding environment earlier, thereby making faster and safer driving decisions and optimizing the driving experience. The aforementioned technological improvements are mainly achieved through software control, requiring no additional hardware costs, making it a cost-effective and efficient solution.

[0049] In summary, the embodiments of this application significantly improve the control efficiency of the reversing radar system by intelligently utilizing the vehicle's existing braking signals to pre-start the sensing devices. This solves the technical problems of slow response and low control efficiency of sensing devices in related technologies, while ensuring that the vehicle can provide obstacle warning signals within the time limit required by regulations, thereby improving driving safety and user experience.

[0050] S120 uses sensors in operation to acquire environmental information corresponding to the vehicle.

[0051] In step S120, environmental information can be used to represent the environmental state of the vehicle's environment in the target direction.

[0052] Optionally, environmental information can be a comprehensive description of the data and conditions surrounding the vehicle collected and analyzed by various sensing devices during vehicle operation. This environmental information provides real-time details such as the vehicle's current position, the distribution of surrounding obstacles, and the dynamics of other traffic participants (e.g., pedestrians, bicycles, other vehicles), which are used for decisions regarding autonomous driving, driver assistance systems, and various driving safety functions (e.g., reversing warning, blind spot monitoring). Environmental information can be highly specific, such as the distance, relative speed, and orientation of obstacles behind the vehicle provided by a reversing radar system; or it can be broader contextual awareness, such as the road conditions and traffic flow density detected by the front radar. The accuracy and timeliness of this environmental information are crucial for ensuring driving safety and improving the driving experience.

[0053] Optionally, the target direction can refer to the direction or area that the sensing device focuses on when monitoring and collecting environmental information, and can be closely related to the vehicle's driving intention or operating mode. For example, during reversing, the area behind the vehicle becomes the focus of monitoring, so the target direction of the reversing radar is directly behind the vehicle; while when the vehicle is moving forward, the road conditions and obstacles ahead become the focus, so the target direction of the forward-facing radar or camera is directly in front of the vehicle. The selection of the target direction directly affects the working efficiency and data processing strategy of the sensing device, ensuring the targeting and effectiveness of information collection. The selection of the target direction also varies for different driver assistance functions.

[0054] In this embodiment, after the control sensor successfully switches from standby to working state, the sensor in working state can be used to obtain the environmental information corresponding to the vehicle.

[0055] Optionally, the target direction that the sensing device can monitor can be determined based on the vehicle's current operational needs. For example, if the vehicle is about to shift into reverse (R) to perform a reversing operation, the target direction is the rear of the vehicle; if the vehicle is preparing to move forward, the target direction is the front of the vehicle. The selection of the target direction can be based on the vehicle's gear information and other possible relevant signals (such as turn signal signals, driving mode selection, etc.) to ensure that the sensing device's focus aligns with the vehicle's actual operational needs. After the sensing device is controlled to enter working mode, it can be controlled to begin performing environmental monitoring tasks in the target direction. The parameter settings of the sensing device in working mode can be adjusted to adjust the monitoring effect in the target direction; for example, adjusting the scanning angle and frequency of the sensing device can ensure more detailed and comprehensive collection of environmental information in the target direction.

[0056] Optionally, the sensing device begins scanning the environment in the target direction, collecting environmental information such as the location, size, shape, and relative speed of obstacles. During the collection of environmental information, the sensing device can combine various sensing technologies, such as radar, cameras, and ultrasonic sensors, to enhance the accuracy and reliability of environmental perception.

[0057] Optionally, the collected raw environmental data undergoes preliminary cleaning, filtering, and formatting in the sensor device's processor. For example, the sensor device's built-in data analysis algorithms can be used to deeply interpret the environmental information, identify key obstacles and their corresponding attributes, such as distance, angle, and relative speed, and construct environmental information. The analyzed and processed environmental information is then transformed into an intuitive description of the environmental state, such as the relative position and movement trend of obstacles.

[0058] In this embodiment, by acquiring environmental information in the target direction in real time and with high accuracy, the driver assistance system can make immediate safety responses. For example, it can quickly warn of obstacles behind the vehicle while reversing, avoiding collisions and significantly improving driving safety. Timely feedback of environmental information enhances the driver's perception of the vehicle's surroundings, reducing driving stress, especially in complex parking environments or high-speed driving conditions, providing a more confident and relaxed driving experience. In reversing scenarios, the ability to quickly acquire and feedback environmental status information helps meet the requirements of EU R158 regulations, ensuring that obstacle warning signals are provided to the driver within 0.6 seconds of the start of the reversing event, meeting the safety standards stipulated by the regulations. By pre-activating the sensing devices and focusing specifically on the target direction, unnecessary resource waste is avoided, and the management of onboard resources is optimized, especially during the transition from standby low-power state to working state, achieving efficient resource allocation.

[0059] In summary, the above methods, by controlling the precise capture and analysis of environmental information in the target direction by the sensing devices, not only enhance vehicle safety and improve the driving experience, but also ensure the compliance of system operation and the high efficiency of resource utilization.

[0060] S130, in response to the vehicle's gear shift from first gear to second gear, controls the sensor to output environmental information.

[0061] In step S130, the second gear can be used to characterize the vehicle switching from a stationary state to a driving state that is traveling in the target direction.

[0062] Optionally, the second gear can refer to the gear used when the vehicle switches from a stationary state to a driving state in preparation for travel in the target direction. The aforementioned second gear can include Drive (D) and Reverse (R) gears. Specifically, the D gear is the gear selection when the vehicle is preparing to move forward. When the driver switches the vehicle from Park (P) to D, the vehicle's powertrain is configured to output power forward, enabling the vehicle to accelerate and move forward. In D gear, sensors such as forward-facing radar or cameras will activate, continuously monitoring the environment in front of the vehicle to provide environmental information such as obstacle detection and road condition analysis. The R gear is the gear setting when the vehicle is preparing to reverse. When the driver selects to switch from Park (P) to R gear, the vehicle's powertrain is configured to output power backward, enabling the vehicle to reverse safely. In R gear, the reversing radar system or other rearward-facing sensors will be activated, monitoring environmental information behind the vehicle, such as the distance and position of obstacles, providing reversing assistance to the driver.

[0063] In this embodiment, after acquiring the environmental information corresponding to the vehicle using the sensing device in working state, if it is detected that the vehicle's gear has successfully switched from the first gear to the second gear, the sensing device can be controlled to output the environmental information.

[0064] Optionally, the vehicle's ECU continuously monitors the gear selector signal to identify the current gear status of the vehicle. When it detects that the vehicle gear has shifted from the first gear (such as P, i.e., parking) to the second gear (such as D, drive or R, reverse), the ECU immediately recognizes the gear change and determines that the vehicle is about to travel in the target direction (forward or reverse). After detecting the gear change, the ECU sends control commands to the corresponding sensors, controlling the sensors to output environmental information.

[0065] Optionally, once the sensing device enters the output state, it begins to collect and process environmental information in the target direction in real time. The computer-processed environmental information (e.g., obstacle distance, speed, direction, etc.) is converted into a specific format and transmitted via a bus network (such as the CAN bus) to the vehicle's central control system or driver information display system. The environmental information is then transmitted via the bus to the ECU or other central processing units. Based on the received information, the central processing unit issues visual or auditory warnings to the driver or directly controls the driver assistance system to take corresponding measures, such as automatic braking. The driver can intuitively obtain real-time information about the vehicle's surroundings through devices such as the instrument panel, head-up display (HUD), or central control screen, assisting in safe driving.

[0066] In this embodiment, when the vehicle successfully shifts from the first gear to the second gear, the sensing device can enter the output state, feeding back the detected environmental information to the driver or vehicle control system. This significantly improves the response speed of the driver assistance system and reduces system latency. By activating and preparing the sensing device in advance, environmental information is collected before the vehicle officially starts moving, ensuring that driving decisions are based on the most timely and comprehensive environmental data. This effectively avoids safety risks caused by information acquisition delays during starting or reversing. The driver can instantly obtain the environmental status in the target direction, such as the distance to obstacles when reversing or traffic conditions when moving forward, reducing uncertainty and anxiety during driving and improving driving comfort and confidence. Especially in reversing scenarios, the time from receiving the R gear signal to outputting environmental information is controlled within 0.6 seconds, ensuring that the vehicle can quickly provide audible or tactile obstacle warnings after reversing begins, meeting the requirements of international standards such as EU R158 regulations for reversing safety. Precise control of the sensor status is achieved by triggering the gear position signal, which avoids energy consumption of the sensor at unnecessary times, realizes effective resource management, and also ensures that the sensor can quickly reach the working state when needed, thus improving the overall system efficiency.

[0067] In summary, by closely monitoring changes in vehicle gear positions and adjusting the working status of sensing devices in real time, the system achieves instant output of information about the surrounding environment when the vehicle is traveling in the target direction. This not only improves the response speed and safety of the driver assistance system but also optimizes the driving experience while meeting regulatory compliance requirements. This demonstrates the key role of intelligent vehicle technology in improving driving safety and efficiency.

[0068] In steps S110 to S130 of this embodiment, by detecting the braking signal when the vehicle is stationary in the first gear, and waking up the sensing device to working state in advance based on the braking signal, the delay in sensor device startup after gear shifting in related technologies is eliminated. This means that before the vehicle shifts from the first gear to the second gear, the sensing device has already entered working state, started detecting the surrounding environment, and collected environmental information. Thus, when shifting from a stationary state to the second gear, the sensing device can output the pre-collected environmental information, significantly shortening the time from gear change to providing environmental information, improving driving safety. Moreover, the above method requires no additional hardware investment; it only adds braking signal acquisition and optimizes efficient and real-time environmental perception, thereby achieving the technical effect of improving the control efficiency of sensing devices in the vehicle and solving the technical problem of low control efficiency of sensing devices in the vehicle.

[0069] The method described in this embodiment will now be further explained.

[0070] As an optional embodiment, the method further includes: in response to the vehicle being in a first gear, controlling the sensing device to be in a standby state, wherein the power consumption of the sensing device in the standby state is lower than a power consumption threshold; and in response to the controller of the sensing device receiving a braking signal while the sensor is in the standby state, determining that the vehicle has generated a braking signal.

[0071] In this embodiment, the power consumption threshold can be an energy consumption standard set during the design and operation of the sensing device. It defines the energy consumption limit for the device to switch from a low-power state (e.g., standby state) to an active operating state. In standby state, the device's power consumption is strictly controlled below the power consumption threshold to reduce unnecessary energy consumption and extend the vehicle's battery life, especially when the vehicle is parked or not in use for extended periods. The power consumption threshold can be set by comprehensively considering the performance requirements of the sensing device, battery management strategies, and the vehicle's overall energy consumption budget. The aforementioned power consumption threshold can be adjusted according to the specific functions of the device and the expected standby time to balance the sensing device's response speed and energy efficiency.

[0072] Optionally, the controller of the sensing device is the core component for intelligently managing the operating status of the sensing device. It can automatically adjust the working mode of the sensing device based on factors such as the vehicle's gear position and braking signals. In this embodiment, taking the reversing radar controller as an example, when the vehicle is in first gear (e.g., P gear), i.e., the vehicle is stationary, the controller of the sensing device can put the reversing radar into standby mode to reduce energy consumption. The controller of the sensing device has internal detection logic that can monitor signals on the vehicle bus in real time, such as braking signals. Once a braking signal is received, even if the vehicle is still in first gear, the controller will determine that the vehicle is about to change its state (e.g., shifting to D or R gear) and quickly wake up the reversing radar to the working state to prepare for capturing environmental information. The design and functional implementation of the controller of the sensing device must ensure that the sensing device can switch quickly and smoothly between standby and working states, while ensuring the stable performance of the device in the working state to provide accurate and timely environmental perception data.

[0073] Optionally, during vehicle detection, if the vehicle is in first gear, the sensing device can be kept in standby mode. If the controller of the sensing device receives a braking signal while the sensor is in standby mode, it can determine that the vehicle has generated a braking signal.

[0074] Optionally, the vehicle's current gear position signal is monitored to determine if the vehicle is in first gear (e.g., Parking P or Neutral N). When the vehicle is confirmed to be in first gear, the sensor controller will control the sensor to enter a low-power standby state to save energy. Power consumption in standby mode can be controlled below a preset power consumption threshold. This threshold can be defined based on device performance requirements and the vehicle's overall energy management strategy. Even when the vehicle is in standby mode, the controllers of sensors such as the reversing radar controller will continue to monitor braking signals on the vehicle bus. Receiving a braking signal indicates that the vehicle is about to shift gears (e.g., from P to D or R), or that the driver has applied the brakes, which usually indicates that the vehicle is about to change its driving state.

[0075] Optionally, when the controller of the sensing device receives a braking signal, it can analyze the signal to determine that the vehicle has braked. Based on the detection results, the controller will quickly adjust the operating state of the sensing device, switching from standby to operating state, in preparation for capturing and processing environmental information.

[0076] In this embodiment, by controlling the sensing devices to be in a low-power standby state when the vehicle is stationary, the energy usage of the vehicle system is effectively managed, improving the overall energy efficiency of the vehicle. Upon receiving a braking signal, the sensing devices can quickly activate from standby, reducing the system response time when starting the vehicle and improving the immediacy and reliability of the driver assistance system. This ensures that devices such as the reversing radar are ready and outputting environmental information in a timely manner before the vehicle is about to start (engage D gear) or begin reversing (engage R gear), meeting the R158 regulations' requirements for reversing radar response time and improving driving safety. The rapid response mechanism reduces the time the driver spends waiting for the sensing devices to prepare, providing a smooth vehicle start-up experience and enhancing overall driving perception and satisfaction.

[0077] In summary, the above methods not only demonstrate sophisticated energy management of the vehicle system, but also emphasize intelligent control strategies based on gear position and braking signals, ensuring efficient response and safety of the driver assistance system when the vehicle is about to move. At the same time, they meet industry standards and regulatory requirements, providing drivers with a smarter and safer driving experience.

[0078] As an optional embodiment, controlling the sensing device to be in standby mode in response to the vehicle being in the first gear includes: controlling the power supply device in the vehicle to be in the on state in response to the vehicle being in the first gear and the vehicle being powered on; and controlling the sensing device to be in standby mode in response to the sensing device receiving electrical energy provided by the power supply device in the on state.

[0079] In this embodiment, the power-on state refers to the state in which the vehicle's electrical system begins to operate, providing power to the vehicle's various electronic devices and systems. The vehicle enters the power-on state when the driver inserts the key and turns it to the "ON" position, or when the start button is pressed in a keyless start vehicle. In the power-on state, the vehicle's electrical system (including the battery, alternator, etc.) supplies power to various subsystems and devices, such as the instrument panel, audio system, airbag system, and reversing radar system, preparing for the vehicle's starting and driving. The power-on state is a transitional state between the vehicle being completely off and before starting; all the basic functions of the vehicle's electrical system are activated in this state, but the engine is not yet running.

[0080] Optionally, the "on" state can be the ON position, which can be any position of the vehicle's ignition switch. When the ignition switch is in this position, it means that the vehicle's electrical system, including the engine control system, is ready to start the engine. In the ON state, various onboard ECUs and sensors receive a stable power supply from the vehicle's power supply, allowing for initialization and pre-start preparation. The ON state ensures that all necessary electronic devices and systems are ready before gear engagement, and can respond to driver commands such as gear shifting and acceleration.

[0081] Optionally, the power supply equipment can refer to components that provide power to the various subsystems and devices of the vehicle. For example, the aforementioned power supply equipment can refer to the vehicle power supply, which may include the vehicle's main battery and alternator. The vehicle power supply is responsible for providing a stable power supply to the on-board electronic devices and systems when the vehicle is powered on, ensuring that they can function normally. When the vehicle is powered on, the power supply equipment (vehicle power supply) is in the ON state, meaning it can provide power to various sensors and controllers (such as the reversing radar controller), enabling them to enter standby or other operating states.

[0082] Optionally, while the sensor is in standby mode, if the vehicle is in first gear and powered on, the vehicle's functional devices can be switched on. If the sensor receives power from a powered device that is switched on, the sensor can be switched back to standby mode.

[0083] Optionally, if the vehicle is detected to be in first gear and it is confirmed that the vehicle is powered on (i.e., the ignition switch is in the ON position), the subsequent control process begins. Confirmation of the power-on status means that the vehicle's electrical system has started and can supply power to various subsystems. After the power-on status is detected, the vehicle's power supply is switched on. This power-on status not only prepares the engine and other core systems for starting but also provides the necessary power source for the sensing devices.

[0084] Optionally, when the sensing devices (such as reversing radar, cameras, etc.) detect that the vehicle's power supply is on and begins to provide power, the device enters the power receiving preparation stage. The sensing devices receiving power will adjust their internal circuits in a timely manner according to their own power consumption requirements and design parameters to ensure stable operation.

[0085] Optionally, upon receiving electrical energy from the vehicle's power supply, the sensor's controller will place it in standby mode. In this state, the device maintains minimal power consumption to conserve energy. Standby mode allows the device to respond quickly to external triggering conditions (such as gear changes), thus rapidly switching to operating mode when necessary without a lengthy startup process. Although the device is in a low-power mode in standby, it still possesses a certain degree of self-monitoring capability to recognize start-up signals (such as switching from P to R or D).

[0086] Optionally, when the vehicle is in first gear (e.g., P) and powered on, the system first ensures the vehicle's power is on, preparing all devices that require power. Based on the received stable power, the sensor controller adjusts the sensor's state to standby. In this state, the devices operate at low power consumption but are ready to respond to changes in the vehicle's status. During subsequent vehicle operations (e.g., engaging D or R), the sensor can quickly transition from standby to operating mode, providing real-time environmental perception data. For example, a reversing radar quickly activates when R is engaged, promptly providing obstacle information.

[0087] In this embodiment, by controlling the sensing devices to enter a low-power standby state when the vehicle is stationary, the energy consumption of the vehicle during idle periods is significantly reduced. The standby state setting allows the sensing devices to quickly enter working mode upon receiving signals of changes in vehicle status, reducing startup delay and improving the efficiency of the driver assistance system. It ensures that when the vehicle is about to move (e.g., when shifting into D or R gear), sensors such as the reversing radar can respond promptly and provide environmental information, helping the driver make safe decisions while meeting the R158 regulations' requirements for reversing radar response time.

[0088] In summary, the above methods, through intelligent linkage between vehicle gear position and power status, as well as between sensing devices and their power supply equipment, optimize vehicle energy management and improve driving safety and user experience without increasing additional costs.

[0089] As an alternative embodiment, the vehicle includes a brake pedal. In response to the controller of the sensing device receiving a braking signal while the sensor is in a standby state, determining that the vehicle has generated a braking signal includes: in response to the controller of the sensing device receiving a braking signal from the brake pedal via an onboard network bus while the sensor is in a standby state, determining that the vehicle has generated a braking signal.

[0090] In this embodiment, the vehicle network bus is a communication network used in modern automobiles to transmit data and control signals between various electronic control units. This vehicle network bus allows different systems and devices within the vehicle to operate efficiently and in a coordinated manner. For example, the standards for the vehicle network bus may include CAN, Local Interconnect Network (LIN), etc., without specific limitations here.

[0091] Optionally, the vehicle may include a brake pedal. This brake pedal can be a device operated by the driver with their foot to control the vehicle's deceleration or stopping. When the driver depresses the brake pedal, it triggers a series of mechanical and / or hydraulic actions, activating the vehicle's braking system to decelerate or stop the vehicle. The brake pedal is also connected to the vehicle's electronic system; each time the driver depresses the pedal, a braking signal is generated and transmitted via the vehicle's network bus to the relevant ECU and vehicle control system. The braking signal plays a crucial role within the vehicle, directly controlling the braking system's operation and serving as an indicator of changes in vehicle status. For example, when preparing to reverse, the reversing radar system needs to rely on the braking signal to determine if the vehicle is about to enter a reversing state and activate it in a timely manner.

[0092] Optionally, during the process of determining that the vehicle has generated a braking signal, if the controller of the sensing device is in standby mode, it receives the braking signal from the brake pedal through the vehicle network bus to determine that the vehicle has generated a braking signal.

[0093] Optionally, after the vehicle is started and powered on, it enters the ON position. At this time, the controllers of sensors such as the reversing radar are in standby mode, continuously monitoring signals on the vehicle's network bus and waiting for specific trigger conditions. In standby mode, although the controller reduces power consumption, some functions remain active to ensure timely response to critical signals. When the driver prepares to shift gears, especially from P to R or D, they can press the brake pedal. Sensors on the brake pedal record the physical change in the pedal and generate a braking signal, which is then sent out through the vehicle's network bus. The vehicle network bus, as a high-speed signal channel, ensures that the braking signal can be quickly transmitted to all control units in the vehicle.

[0094] Optionally, the controller of the sensing device continuously monitors the bus. Once a braking signal from the brake pedal is detected, the signal interpretation process is immediately initiated. The controller analyzes the received braking signal and confirms that it means "the driver is applying the brakes," indicating that the vehicle is about to engage a gear, possibly entering reverse or driving mode. After confirming the braking signal, the controller begins to adjust the state of the sensing device, transitioning from a low-power standby mode to a ready-to-activate operating mode. During this process, the controller can perform a series of preparatory steps such as memory loading, software initialization, and sensor warm-up to ensure that the device can quickly respond to subsequent operations. The controller does not fully activate the device during this stage but prepares it, waiting for the next trigger (such as a gear position signal). The controller continues to monitor the bus, waiting for a gear position signal from the transmission. When the gear position signal indicates that the vehicle is about to enter reverse (R) or drive (D) gear, the controller immediately recognizes that the activation condition is met and prepares to fully activate the sensing device.

[0095] Optionally, upon receiving the gear position signal, the controller sends a start command to the sensing device, and the device fully enters the working state, actively scanning and collecting environmental data. For a reversing radar, this means that the device begins to emit ultrasonic pulses and listens to the reflected signals to detect the distance and position of surrounding obstacles.

[0096] In this embodiment, by immediately preparing the sensing device upon receiving the braking signal, it can be ensured that the device can quickly enter the working state when the gear signal arrives, reducing start-up delay. In the non-working state, the sensing device remains in a low-power standby mode, saving power resources; the sensing device is only activated when necessary, improving energy efficiency. This design enables sensors such as reversing radars to respond to gear shifting operations within the extremely short time required by R158 regulations, ensuring that system performance meets regulatory requirements.

[0097] Using the above method, the sensor controller can intelligently adjust its state based on braking and gear signals under limited resource conditions, ensuring rapid response of the equipment and effective energy management, ultimately improving driving safety and user experience.

[0098] As an optional embodiment, step S110, in response to the vehicle being in the first gear and the vehicle generating a braking signal, controlling the sensing device to switch from a standby state to an operating state includes: in response to the vehicle being in the first gear and the vehicle generating a braking signal, using the controller of the sensing device to control the sensing device to switch from a standby state to an operating state.

[0099] In this embodiment, if the vehicle generates a braking signal during the process of controlling the sensing device to switch from standby to working state, the controller of the sensing device can be used to control the sensing device to switch from standby to working state.

[0100] Optionally, when the sensing device is in standby mode monitoring the vehicle network bus, it can receive a braking signal from the brake pedal. After receiving the braking signal, the controller decodes and analyzes it to confirm that the braking signal indicates that the driver is performing a braking operation, i.e., the vehicle has generated a braking signal.

[0101] Optionally, based on the received braking signal, the controller further determines that the vehicle is about to transition from a stationary state to a driving state (e.g., engaging gear to reverse or drive). After confirming the trend of vehicle state change, the controller begins preparing to wake up the sensing devices, switching from a low-power standby state to a fully activated operating state. The controller sends commands to the sensing devices to activate their internal circuits and sensor elements in preparation for capturing environmental data. During the above process, the controller can also perform some initialization operations, such as calibrating sensors and loading configuration files, to ensure that the sensing devices can operate in the working state.

[0102] Optionally, once the sensing device completes the wake-up process and reaches operational status, it begins actively scanning and collecting environmental information, such as a reversing radar detecting obstacles behind the vehicle. In operational status, the sensing device consumes more power than in standby mode because it requires intensive data acquisition and processing.

[0103] In this embodiment, by rapidly waking up the device upon receiving a braking signal, the reversing radar achieves instantaneous response to changes in vehicle operating status, significantly shortening the system's startup time from a stationary state to full operation. When no braking signal is received, the device remains in standby mode, effectively reducing unnecessary energy consumption and achieving rational resource allocation and management. This instant wake-up and rapid response mechanism ensures that sensors such as the reversing radar can be immediately deployed when needed by the driver, providing crucial environmental information, aiding in collision prevention, and enhancing vehicle driving safety.

[0104] In summary, the controller of the sensing device can quickly adjust the device state upon receiving a specific signal (such as a braking signal) to meet driving assistance and safety requirements, while optimizing energy use.

[0105] As an optional embodiment, the vehicle includes a prompting device for providing prompting information corresponding to environmental information to the occupants of the vehicle. Step S130, in response to the vehicle's gear shifting from a first gear to a second gear, controlling the sensor device to output environmental information includes: in response to the vehicle's gear shifting from a first gear to a second gear, outputting the environmental information to the prompting device via the vehicle network bus through the sensor device; the method further includes: obtaining the influence degree of the environmental information, wherein the influence degree is used to represent the degree of influence of the environmental information on the vehicle's driving process; and outputting prompting information using the prompting device according to the prompting strategy corresponding to the influence degree, wherein the prompting strategy is used to represent the rules for outputting prompting information on the prompting device.

[0106] In this embodiment, the prompting device can refer to a device installed in the vehicle to provide important environmental information to the occupants (driver and passengers), commonly including displays, audio systems, vibrating seats, or steering wheel feedback. These prompting devices can convert data from sensing devices into intuitive prompts. For example, when a reversing radar detects an obstacle, the audio system can emit a warning sound, and the display screen may show the obstacle's location and distance to help the driver drive safely. Prompting devices are a key element in the interaction between driver assistance systems and humans, used to transform complex technical information into easily understandable prompts to improve driving safety, avoid accidents, and enhance the user's driving experience.

[0107] Optionally, the alert information can be a warning signal presented in the form of voice, image, or other means, used to inform the driver and passengers of potential safety hazards or important driving information. The types of alert information mentioned above can be categorized as auditory alerts (such as warning sound effects), visual alerts (such as text or graphic warnings on a display screen), and tactile alerts (such as vibration feedback from the seat or steering wheel). The alert information must be designed to be clear and urgent, immediately attracting the driver's attention and guiding the occupants to take appropriate action.

[0108] Optionally, impact level can refer to the degree to which environmental information affects the safety, comfort, or economy of vehicle operation. It can be assessed by the onboard control system based on sensor data, such as the distance between obstacles and the vehicle, and relative speed, to quantify the potential risks of environmental information to driving. Introducing impact level helps differentiate between different levels of environmental information and determine whether and how to provide prompts to the driver.

[0109] Optionally, the alert strategy can be a set of rules guiding the in-vehicle system on how to convey information to the driver through alert devices in an appropriate manner and at the right time, based on the impact of environmental information. This alert strategy may include when to issue the alert, the type of alert (audio, visual, or haptic feedback), and the frequency and intensity of the alert. For example, for high-impact environmental information (such as emergency obstacle avoidance), the strategy might stipulate an immediate, strong audio and visual warning; while for low-impact information (such as minor traffic congestion), a gentler alert could be chosen to avoid interfering with driving.

[0110] Optionally, during the process of controlling the output of environmental information by the sensing device, if the gear successfully shifts from the first gear to the second gear, the environmental information can be output to the prompting device via the vehicle network bus through the sensing device. The impact of the environmental information on the vehicle's driving process can be obtained, and prompting information can be output using the prompting device according to the corresponding prompting strategy.

[0111] Optionally, confirming the vehicle is in first gear, which could be P (Park). At this time, the sensors may be in energy-saving standby mode, while notification devices (such as displays and audio systems) are ready to receive and display information. When the vehicle shifts from first to second gear, this operation is detected by the vehicle control system. The second gear could be R (Reverse) or D (Drive). The gear change signal is sent from the transmission to the vehicle network bus, triggering a series of subsequent program responses. Upon receiving the gear change signal, the sensors (such as reversing radar and front-facing cameras) immediately switch to operational mode and begin collecting environmental information. Data collection may include obstacle detection, road condition recognition, pedestrian and vehicle detection, depending on the vehicle configuration and the functionality of the sensors.

[0112] Optionally, the collected environmental information is transmitted to the vehicle's central processing unit or corresponding control unit via an in-vehicle network bus (such as a CAN bus). Bus transmission ensures fast and stable information delivery, enabling real-time communication and collaboration among various in-vehicle systems. The central processing unit or control unit analyzes the received environmental information to assess its impact on the vehicle's driving process, i.e., its influence. The influence assessment can involve various factors such as obstacle distance, vehicle speed, and driving direction to determine the importance and urgency of the environmental information.

[0113] Optionally, based on the assessed impact, the system identifies corresponding alert strategies. These strategies are pre-set to guide how to effectively convey information. The alert strategy might stipulate that in high-impact situations, an audible alarm should be activated immediately, and a prominent warning icon should be displayed on the screen; while in low-impact situations, only a warning message might be displayed on the screen to avoid causing unnecessary panic. According to the matching alert strategy, the alert message is output through alert devices, such as playing a warning sound through an audio system or displaying the obstacle's location and distance on the screen. The design of the alert message can take into account the driver's acceptance and reaction in different driving situations, ensuring the effectiveness and urgency of the information delivery.

[0114] Optionally, the system monitors the driver's response to prompts, such as whether they immediately take action to avoid obstacles or adjust their driving behavior. This feedback can be used to optimize subsequent prompting strategies, forming a closed-loop control system that continuously learns and adapts to provide a more personalized driving assistance experience.

[0115] In this embodiment, the sensing and alerting devices are rapidly activated upon gear shifting, ensuring the immediate availability of the driver assistance functions. Through impact assessment and alerting strategies, the system intelligently determines which environmental information the driver needs to know first, improving the relevance and effectiveness of the information. The carefully designed alerting strategy takes into account the driver's capacity to process information, avoiding information overload or invalid warnings, thereby enhancing driving safety and comfort.

[0116] In summary, the above methods demonstrate the intelligent operating mechanism of vehicle driving assistance systems, which activate in real time through gear changes, assess the impact of environmental information, and then provide customized prompts to the driver according to the strategy, aiming to improve driving safety and efficiency.

[0117] As an optional embodiment, the environmental information includes first environmental information and second environmental information. The first environmental information represents the environmental state of the vehicle's environment in the reversing direction, and the second environmental information represents the environmental state of the vehicle's environment in the forward direction. The second gear includes a reverse gear and a forward gear. The sensing devices include a reversing sensor and a forward sensor. Step S130, in response to the vehicle's gear shifting from the first gear to the second gear, controls the sensing devices to output environmental information, including: in response to the vehicle's gear shifting from the first gear to the reverse gear, controlling the reversing sensor to output the first environmental information; and in response to the vehicle's gear shifting from the first gear to the forward gear, controlling the forward sensor to output the second environmental information.

[0118] In this embodiment, the environmental information may include first environmental information and second environmental information. The first environmental information can be used to represent the environmental state of the vehicle's surroundings in the reversing direction. This first environmental information may refer to data collected by the reversing sensor device regarding the environmental state behind the vehicle when the vehicle is in reverse gear. The first environmental information may include, but is not limited to, the distance of obstacles in the reversing direction, the type of obstacle (such as pedestrians, vehicles, or fixed obstacles), road conditions, and potential risks. The second environmental information can be used to represent the environmental state of the vehicle's surroundings in the forward direction. This second environmental information can be information collected by the forward sensor device regarding the environmental state in front of the vehicle when the vehicle is in forward gear. This second environmental information covers obstacle detection, road condition analysis, and potential traffic risks, such as the speed and distance of vehicles ahead, and the presence of pedestrians and non-motorized vehicles.

[0119] Optionally, the reversing sensor may include a reversing radar, and the aforementioned reversing sensor can be a device designed to detect obstacles behind the vehicle. Technologies such as ultrasonic waves, millimeter-wave radar, or cameras can be used to acquire real-time information about the surrounding environment. The reversing sensor is activated when the vehicle is shifted into reverse gear, begins scanning behind the vehicle, generates initial environmental information, and promptly provides feedback to the driver to assist in reversing operations and reduce the risk of collision. The forward sensor may include radar and a forward-facing camera at the front of the vehicle to monitor the environment in the direction of the vehicle's movement, including vehicles, pedestrians, bicycles, etc., and road conditions such as traffic signs and road markings. When the vehicle is shifted into drive gear, the forward sensor begins operating, collecting secondary environmental information to provide the driver with real-time updates on the road conditions ahead, supporting active safety functions such as automatic emergency braking and adaptive cruise control, thereby improving driving safety and comfort.

[0120] Optionally, during the process of controlling the output of environmental information by the sensing device, if the vehicle's gear is switched from first gear to reverse gear, the reversing sensing device can be controlled to output first environmental information. If the vehicle's gear is switched from first gear to drive gear, the driving sensing device can be controlled to output second environmental information.

[0121] Optionally, the system confirms that the vehicle is in first gear. At this time, both the reversing and forward sensors are in energy-saving standby mode, ready to respond to gear changes at any time. When the driver prepares to engage a gear, the system detects that the vehicle is shifting from first gear (P) to second gear. The second gear can be either reverse (R) or forward (D), depending on the driver's intention.

[0122] Optionally, if the vehicle shifts to reverse (R), the reversing sensor, such as a reversing radar, is immediately activated to collect first environmental information. If the vehicle shifts to drive (D), the system activates the forward sensor, such as a forward-facing camera or front radar, to collect second environmental information. When the vehicle is in R, the reversing sensor quickly detects the environment behind the vehicle, including the distance and type of obstacles and the road conditions behind the vehicle, generating first environmental information. When the vehicle is in D, the forward sensor monitors the environment in front of the vehicle, including vehicles, pedestrians, traffic signs, and road conditions, generating second environmental information. Both the first and second environmental information are transmitted to the vehicle's central processing unit or driver information display system via the vehicle network bus. Bus transmission ensures the real-time nature and accuracy of the information and is crucial for communication between various vehicle systems. The vehicle system processes and analyzes the received environmental information to assess its impact on vehicle driving safety, i.e., the degree of influence of the first and second environmental information on reversing and forward operations, respectively.

[0123] Optionally, based on the assessed impact, a pre-defined alert strategy is applied to determine how to output alert information on the vehicle's alert devices. The alert strategy can determine the type, timing, frequency, and intensity of the alert based on the impact, effectively reminding the driver of potential driving risks. According to the alert strategy, corresponding alert information is generated, such as auditory alarms, visual warnings, or tactile feedback, and output to the driver through the vehicle's alert devices (such as the audio system, dashboard display, steering wheel vibration, etc.). The alert information ensures that the driver can quickly understand the environmental state and take appropriate measures in a timely manner to avoid collisions or other driving hazards. The system can also monitor the driver's response to the alert information, such as whether they slow down, change lanes, or stop, to evaluate the effectiveness of the alert strategy and provide data support for subsequent system optimization.

[0124] Optionally, when the vehicle completes a reversing or driving operation and shifts back to Park (P), the reversing and forward sensors reset to standby mode, awaiting the signal for the next gear change. The control sensors enter a low-power standby state, ready to respond to future driving needs while maintaining continuous monitoring of the vehicle's status.

[0125] In this embodiment, the above method intelligently activates the corresponding sensing devices based on the vehicle's current gear position, ensuring targeted collection of environmental information during reversing or moving forward, thus improving the accuracy and timeliness of driving assistance. By collecting first and second environmental information from the reversing and forward sensing devices respectively, the system can accurately identify and assess environmental risks in different directions, providing the driver with specific and effective driving suggestions. Based on the impact of environmental information, personalized prompting strategies can be applied, conveying warning information in the most suitable way for the driver through the vehicle's prompting devices, improving driving safety and user experience.

[0126] In summary, the above methods demonstrate how a vehicle's driver assistance system, through the combination of dynamic activation of intelligent sensing devices and personalized prompting strategies, provides customized environmental status information based on the vehicle's driving direction and gear changes, thereby enhancing the effectiveness of driver assistance functions and improving driving safety.

[0127] The following describes in detail the control method of the sensing device in the vehicle according to the embodiments of this application, taking a reversing radar system as a sensing device. A method for improving the reaction speed of the reversing radar system to meet the R18 regulations is used as an example.

[0128] Currently, a large number of vehicles need to be exported, and the vehicles exported to the respective countries must meet the regulations of those countries. Among them, vehicles exported to the European Union must meet the R158 regulation.

[0129] The original text of Regulation R158 concerning reversing radar systems is as follows: At most 0.6 seconds after the start of a reversing event, at least one audible or tactile information signal conforming to the requirements described in paragraph 17.2 (rear side coverage) shall be provided to the driver.

[0130] This requirement, when analyzed and broken down, applies to the reversing radar system as follows: the time from receiving the R gear bus signal to issuing the audible alarm bus signal must be within 0.25 seconds. This embodiment of the application aims to shorten the aforementioned time.

[0131] In existing technologies, the reversing radar only starts working after receiving a signal indicating a gear other than Park (P). Because of the delay in the bus signal, and the fact that the reversing radar system requires a certain amount of time from startup to signal transmission to the bus, the time between receiving the Reversing (R) bus signal and issuing the audible alarm bus signal exceeds 0.25 seconds during R158 regulatory verification, causing the regulation to fail.

[0132] Figure 2 This is a flowchart of the working method of reversing radar in related technologies, such as... Figure 2 As shown, the method may include the following steps.

[0133] Step S210: Power on the vehicle and put it in Park (P) gear.

[0134] In this embodiment, when the vehicle is started and powered on, it is in P gear (parking) by default. This initial setting ensures that the reversing radar system and other electronic devices in the vehicle do not consume power when not in use, which helps improve the efficiency of the vehicle's power management system while ensuring safety. After the vehicle is powered on, the onboard electronic system begins initialization, preparing to receive and process signals from various parts of the vehicle, including gear position signals and brake signals, in preparation for the driver's upcoming operations.

[0135] Step S220: Check if the brake is applied.

[0136] In this embodiment, if braking is detected, step S230 can be executed; otherwise, if braking is not detected, the process can return to step S220. When the vehicle is preparing to shift from P gear to another gear, the system first monitors whether the driver has pressed the brake pedal. These steps are part of modern automotive safety standards, ensuring that the vehicle is in a stable and controllable state before gear shifting. Pressing the brake not only helps prevent the vehicle from moving unexpectedly during gear shifting but also provides a crucial signal for the logical judgment of subsequent steps, indicating that the vehicle is about to perform an operation that may require the intervention of the reversing radar.

[0137] Step S230: Check if reverse gear is engaged.

[0138] In this embodiment, if the reverse gear (R) is detected, step S240 can be executed; otherwise, if the reverse gear is not detected, step S230 can be executed. Continuing the logic of the previous step, the system then detects whether the driver has shifted the vehicle's gear from park (P) to reverse (R). This detection is the direct condition for the reversing radar system to activate. When the system confirms that the vehicle has been engaged in reverse, it indicates that the driver intends to reverse. At this time, the reversing radar begins to prepare to enter working mode to detect obstacles behind the vehicle and provide reversing assistance to the driver.

[0139] Step S240: The reversing radar starts working.

[0140] In this embodiment, once it is confirmed that the vehicle is in reverse (R) and the system is ready, the reversing radar will activate its detection function. It emits ultrasonic waves or radar waves and then receives the reflected signals, determining the distance and position of obstacles by calculating the time difference between these signals. After the reversing radar starts working, it continuously monitors the environment behind the vehicle and feeds back the detected obstacle information to the vehicle's central processing system in real time. The system then issues warnings to the driver through the vehicle's alert devices (such as the dashboard, audio system, etc.) to ensure the safe reversing operation.

[0141] In this embodiment, to meet vehicle power management and power consumption requirements, the reversing radar operates in a non-P (Park) position. To comply with R158 regulations, the original reversing radar software is enhanced with the addition of brake bus signal acquisition capabilities. When the vehicle is powered on and in P (Park) mode, shifting to R (Reverse) requires pressing the brake pedal. Once the brake is applied and the reversing radar ECU acquires a valid brake bus signal, it activates the reversing radar detection function. This achieves the requirement that the time from shifting to R to issuing an audible alarm signal be within 0.6 seconds during the R158 regulatory certification process.

[0142] In this embodiment, to meet the vehicle's low power consumption requirements, the reversing radar system operates in a non-P (Park) position. According to vehicle safety requirements, when shifting from P to a non-P position, the brake must be applied first to complete the shift. Vehicles exported to the EU and related EU countries must meet the R158 regulation verification. For the reversing radar system, this means the time from receiving the R (Reversing) bus signal to issuing the audible alarm bus signal must be within 0.25 seconds.

[0143] Regarding the existing software, the software has been improved so that "the reversing radar starts working as soon as it receives a valid brake bus signal when in P gear". This allows the reversing radar system to be activated before actually shifting into R gear, so that the system can immediately send the calculated data to the bus after shifting into R gear. This reduces the time from when the system receives the R gear bus signal to when it issues an audible alarm bus signal, thus meeting the regulatory requirements of R158.

[0144] Figure 3 This is a flowchart illustrating a reversing radar operation method according to an embodiment of this application, as shown below. Figure 3 As shown, the method may include the following steps.

[0145] Step S310: Power on the vehicle and put it in Park (P) gear.

[0146] In this embodiment, when the driver starts the vehicle, the vehicle power-on process begins. At this time, the vehicle is in P gear (parking gear) by default, which ensures that the vehicle is in a safe and stable initial state before driving. During the above stage, the vehicle's electronic systems are fully activated, including but not limited to the reversing radar system. However, for power management and safety considerations, the reversing radar system is in standby or low-power mode at this time, ready to be activated according to subsequent operations.

[0147] Step S320: Check if the brake is applied.

[0148] In this embodiment, if braking is detected, step S330 can be executed; otherwise, if braking is not detected, the process can return to step S320. After the vehicle is powered on, the system continuously monitors whether the driver has pressed the brake pedal. This step is a crucial trigger condition, indicating that the driver may be about to perform a driving operation requiring reversing radar assistance. Detecting the brake signal is not only to comply with modern automotive safety operating procedures and prevent unexpected vehicle movement during gear shifting, but also to activate the reversing radar in a timely manner and prepare for driving assistance in advance.

[0149] Step S330: The reversing radar starts working.

[0150] In this embodiment, once the system detects a braking signal, the reversing radar immediately activates and enters working mode, even if the vehicle has not yet shifted into reverse (R). This is the core improvement of this application embodiment, aiming to activate the reversing radar in advance, reducing the delay time from shifting into reverse to the radar fully activating, thereby responding to reversing needs more quickly and improving driving safety and efficiency. The reversing radar monitors the environment behind the vehicle in real time by transmitting and receiving signals, including the distance and position of obstacles. Although the vehicle may not have started actually reversing at this time, the early activation of the radar means that once the vehicle is shifted into reverse, the radar system is ready and can immediately provide reversing assistance information.

[0151] In conclusion, with Figure 2 Compared to the traditional workflow shown, Figure 3 The embodiments of this application activate the reversing radar immediately after the driver presses the brake pedal, without waiting for the command to shift into reverse (R). This optimizes the response time of the reversing radar system, significantly improving vehicle safety and driving experience, especially when rapid reversing is required to handle emergencies. By activating immediately upon triggering the brake signal, the reversing radar can quickly and accurately detect the surrounding environment, ensuring that the system is ready to provide the driver with immediate obstacle distance warnings the moment reverse gear is engaged. This meets regulatory requirements, such as the reversing radar response speed requirements in Regulation R158, and also improves the overall effectiveness of the driver assistance system.

[0152] In this embodiment, the vehicle is in Park (P) gear, the vehicle power supply is ON, and the reversing radar system is in standby low-power mode. When preparing to start the vehicle and applying the brakes, the reversing radar controller receives a valid brake bus signal. Upon receiving this signal, the reversing radar controller changes its operating mode to active mode while simultaneously not sending any signals to the bus as required by the bus specification. When the vehicle is shifted into Reverse (R) gear and reversing begins, the calculated information from the reversing radar is immediately sent to the bus with little or no delay. Without increasing hardware costs, the requirements of Regulation R158 are met by modifying existing signals on the bus using software. This software modification achieves compliance with Regulation R158 for the reversing radar system without incurring any additional costs.

[0153] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties. Furthermore, the collection, use and processing of the relevant data must comply with the relevant laws, regulations and standards of the relevant countries and regions, and corresponding operation entry points are provided for users to choose to authorize or refuse.

[0154] Figure 4 This is a schematic diagram of a control device for a sensing device in a vehicle according to an embodiment of this application, as shown below. Figure 4 The control device 40 for the sensing equipment in the vehicle shown includes: a first control module 402, used to control the sensing equipment to switch from a standby state to an operating state in response to the vehicle being in the first gear and the vehicle generating a braking signal, wherein the first gear indicates that the vehicle is in a stationary state; an acquisition module 404, used to acquire environmental information corresponding to the vehicle using the sensing equipment in the operating state, wherein the environmental information indicates the environmental state of the environment in which the vehicle is located in the target direction; and a second control module 406, used to control the sensing equipment to output environmental information in response to the vehicle being in the first gear and switching from the first gear to the second gear, wherein the second gear indicates that the vehicle has switched from a stationary state to a driving state traveling in the target direction.

[0155] Figure 5This is a schematic diagram of a control system for a sensing device in a vehicle according to an embodiment of this application. The control system 50 for the sensing device in the vehicle includes: a controller 502 and a sensing device 504. The controller 502 is used to control the sensing device to switch from a standby state to an operating state in response to the vehicle being in a first gear and the vehicle generating a braking signal. The first gear indicates that the vehicle is in a stationary state. The sensing device 504 is used to acquire environmental information corresponding to the vehicle. The environmental information indicates the environmental state of the environment in which the vehicle is located in the target direction. In response to the vehicle being in a second gear, the sensor outputs environmental information. The second gear indicates that the vehicle has switched from a stationary state to a driving state traveling in the target direction.

[0156] The method described in this embodiment will now be further explained.

[0157] As an alternative embodiment, the system also includes an in-vehicle network bus, wherein the in-vehicle network bus is used to transmit a braking signal to the controller in response to receiving a braking signal from the vehicle's brake pedal.

[0158] This application also provides an electronic device, please refer to... Figure 6 , Figure 6 This is a structural diagram of an electronic device provided in an embodiment of this application. The electronic device 600 includes a processor 610 and a memory 620. The memory 610 is used to store computer programs; the processor 620 is used to execute the programs stored in the memory 610 to implement the control method of the sensing device in the vehicle described in any embodiment of this application.

[0159] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the control method for a sensing device in a vehicle as described in any embodiment of this application.

[0160] In this application, "multiple" refers to two or more.

[0161] In this application, unless otherwise expressly defined, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0162] The terms “first,” “second,” “third,” “fourth,” etc., in this application (if present) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0163] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0164] Unless otherwise specified, all steps in this application may be performed sequentially or randomly. For example, if the method includes steps A and B, it means that the method may include steps A and B performed sequentially, or it may include steps B and A performed sequentially. For example, if the method may also include step C, it means that step C may be added to the method in any order. For example, the method may include steps A, B, and C, or it may include steps A, C, and B, or it may include steps C, A, and B, etc.

[0165] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A control method for sensing devices in a vehicle, characterized in that, include: In response to the vehicle being in the first gear and the vehicle generating a braking signal, the sensing device is controlled to switch from a standby state to an operating state, wherein the first gear is used to indicate that the vehicle is stationary. Using the sensing device in the working state, environmental information corresponding to the vehicle is acquired, wherein the environmental information is used to represent the environmental state of the environment in which the vehicle is located in the target direction; In response to the vehicle's gear shifting from the first gear to the second gear, the sensing device is controlled to output the environmental information, wherein the second gear is used to represent the vehicle switching from the stationary state to a driving state traveling in the target direction.

2. The method according to claim 1, characterized in that, The method further includes: In response to the vehicle being in the first gear, the sensing device is controlled to be in the standby state, wherein the power consumption of the sensing device in the standby state is lower than the power consumption threshold. In response to the sensor's controller receiving the braking signal while the sensor is in the standby state, the controller determines that the vehicle has generated the braking signal.

3. The method according to claim 2, characterized in that, Responding to the vehicle being in the first gear, controlling the sensing device to enter a standby state includes: In response to the vehicle being in the first gear and the vehicle being powered on, the power supply equipment in the vehicle is controlled to be in the on state. In response to the sensing device receiving electrical energy from the power supply device which is in the on state, the sensing device is controlled to enter the standby state.

4. The method according to claim 2, characterized in that, The vehicle includes a brake pedal, and in response to the controller of the sensing device receiving the braking signal while the sensor is in the standby state, determining that the vehicle generates the braking signal includes: In response to the sensor's controller receiving the braking signal from the brake pedal via the vehicle network bus while the sensor is in the standby state, the controller determines that the vehicle has generated the braking signal.

5. The method according to any one of claims 1 to 4, characterized in that, In response to the vehicle being in first gear and the vehicle generating a braking signal, controlling the sensing device to switch from standby mode to operating mode includes: In response to the vehicle being in first gear and the vehicle generating the braking signal, the controller of the sensing device controls the sensing device to switch from the standby state to the working state.

6. The method according to any one of claims 1 to 4, characterized in that, The vehicle includes a prompting device, which provides prompting information corresponding to the environmental information to the occupants of the vehicle. In response to the vehicle's gear shifting from the first gear to the second gear, controlling the sensing device to output the environmental information includes: In response to the vehicle's gear shift from the first gear to the second gear, the environmental information is output to the prompting device via the vehicle network bus through the sensing device; The method further includes: The impact degree of the environmental information is obtained, wherein the impact degree is used to represent the degree of influence of the environmental information on the driving process of the vehicle; According to the prompting strategy corresponding to the influence level, the prompting information is output using the prompting device, wherein the prompting strategy is used to represent the rule for outputting the prompting information on the prompting device.

7. The method according to any one of claims 1 to 4, characterized in that, The environmental information includes first environmental information and second environmental information. The first environmental information represents the environmental state of the vehicle's environment in the reversing direction, and the second environmental information represents the environmental state of the vehicle's environment in the forward direction. The second gear includes a reverse gear and a forward gear. The sensing device includes a reversing sensor and a forward sensor. In response to the vehicle's gear shifting from the first gear to the second gear, the sensing device is controlled to output the environmental information, including: In response to the vehicle's gear shifting from the first gear to the reverse gear, the reversing sensor is controlled to output the first environmental information; In response to the vehicle's gear shifting from the first gear to the forward gear, the forward sensing device is controlled to output the second environmental information.

8. A control system for a sensing device in a vehicle, characterized in that, The system includes: a controller and sensing devices, wherein, The controller is configured to control the sensing device to switch from a standby state to an operating state in response to the vehicle being in the first gear and the vehicle generating a braking signal, wherein the first gear is used to indicate that the vehicle is stationary. The sensing device is used to acquire environmental information corresponding to the vehicle, wherein the environmental information is used to represent the environmental state of the environment in the target direction where the vehicle is located; in response to the vehicle's gear shifting from the first gear to the second gear, the environmental information is output, wherein the second gear is used to represent the vehicle shifting from the stationary state to the driving state of traveling in the target direction.

9. The system according to claim 8, characterized in that, The system also includes an in-vehicle network bus, wherein... The vehicle network bus is used to transmit the braking signal to the controller in response to receiving a braking signal from the brake pedal of the vehicle.

10. A vehicle, characterized in that, include: Memory, which stores executable programs; A processor for running the program, wherein the program, when running, performs the method according to any one of claims 1 to 7.

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