AVH function control system and method, electronic equipment and computer readable medium

Abstract

The invention provides an AVH function control system and method, and belongs to the field of intelligent driving. A navigation unit is used for sending front road traffic information to a braking unit (3); the CAN bus unit (2) is used for sending a driving operation state signal to the braking unit (3); the braking unit (3) is used for outputting a vehicle speed signal and judging the AVH function state according to the traffic condition of the front road, the driving operation state signal and the vehicle speed signal. The situation of the front road is recognized through the integrated navigation unit, a driver does not need to turn off an AVH switch or operate an EPB switch, and the driving operation state of the driver is judged. According to the control method, the AVH function is automatically closed, parking is achieved, use of an IBC / ESC valve is reduced, and the service life of the IBC / ESC is prolonged.

Description

Technical Field

[0001] This invention relates to the field of intelligent driving technology, and in particular to an AVH (Automatic Driving Hazard) function control system, method, electronic device, and computer-readable medium. Background Technology

[0002] The AVH (Automatic Parking) function allows the vehicle to automatically engage the four-wheel brakes when stopped at a red light or on a slope. Even in D, N, or R gear, you don't need to keep your foot on the brake or use the handbrake, and the car will always remain stationary.

[0003] With the increasing prevalence of AVH (Autonomous Vehicle Hazard) functions in automobiles, more and more users are utilizing this feature. However, in traffic jams where vehicles frequently follow and stop in front of them, the AVH function is frequently triggered. Prolonged activation of the AVH function can lead to its degradation. After the AVH function ends, for driving safety, the EPB (Electronic Parking Brake) will clamp the calipers to hold the vehicle in place. At this time, the gear in an electric vehicle will also return to P (Park) as the calipers clamp. If the driver wants to start moving at this point, they must shift to D (Drive), leading to customer complaints. Furthermore, frequent use of the AVH function can even reduce the lifespan of the ESC / IBC (Interlocking Brake) valve. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art, and proposes an AVH function control system and method.

[0005] In a first aspect, embodiments of the present invention provide an AVH function control method, comprising: a navigation unit (1), a CAN bus unit (2), and a braking unit (3); wherein:

[0006] The navigation unit is used to send road traffic information ahead to the braking unit (3);

[0007] The CAN bus unit (2) is used to send driving operation status signals to the braking unit (3);

[0008] The braking unit (3) determines the AVH function status based on the road traffic conditions ahead, driving operation status signals and vehicle speed signals.

[0009] In some embodiments, the road traffic information ahead includes the traffic flow ahead and the road congestion index within a set range ahead;

[0010] The congestion index is calculated as α * time factor + β * braking frequency + γ * vehicle distance factor, where α + β + γ = 1.

[0011] In some embodiments, the driving operation status signal includes a gear position signal and a brake pedal status signal.

[0012] In some embodiments, the AVH function is automatically turned off when the braking unit (3) receives a signal that the duration of road congestion ahead exceeds a threshold.

[0013] In some embodiments, when the vehicle comes to a stop during congestion, the braking unit (3) requests the braking system (4) to clamp the EPB, and at the same time requests the motor controller system (5) not to return to P gear.

[0014] In some embodiments, when the vehicle starts, the braking unit (3) detects that the vehicle speed is greater than the set value and the road ahead is not congested, the braking unit (3) automatically activates the AVH function.

[0015] In some embodiments, the braking unit (3) receives a signal that the duration of road congestion ahead does not exceed a threshold.

[0016] Calculate the braking frequency threshold N. If N ≤ congestion index * 0.8 + 2, the AVH function is triggered normally; if N > congestion index * 0.8 + 2, the AVH function is automatically turned off.

[0017] When the braking unit (3) receives a signal that the road ahead is not congested, it automatically restarts the AVH function.

[0018] Secondly, this embodiment provides an AVH function control method, including:

[0019] Get road traffic information ahead;

[0020] Acquire driving operation status signals;

[0021] The vehicle speed signal is acquired, and the AVH function status is determined based on the road traffic conditions ahead, the driving operation status signal, and the vehicle speed signal.

[0022] Thirdly, this application also provides an electronic device, including:

[0023] One or more processors;

[0024] Memory, used to store one or more programs;

[0025] When the one or more programs are executed by the one or more processors, the one or more processors implement any of the methods.

[0026] Fourthly, this application also provides a computer-readable medium storing a computer program that, when executed by a processor, implements the steps of any of the methods described.

[0027] The AVH function control system provided by this invention includes a navigation unit for sending road traffic information ahead to the braking unit (3); a CAN bus unit (2) for sending driving operation status signals to the braking unit (3); and a braking unit (3) for outputting a vehicle speed signal and determining the AVH function status based on the road traffic conditions ahead, the driving operation status signal, and the vehicle speed signal. This application identifies the road conditions ahead by integrating a navigation unit, and automatically shuts off the AVH function and realizes parking control without requiring the driver to operate the AVH switch or the EPB switch. This reduces the use of the IBC / ESC valve and improves the lifespan of the IBC / ESC valve. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of an embodiment of the AVH function control system of the present invention;

[0029] Figure 2 This is a schematic diagram of one embodiment of the AVH function control method of the present invention;

[0030] Figure 3 This is a schematic diagram of the structure of an embodiment of the electronic device of the present invention. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solutions of the present invention, exemplary embodiments of the present invention are described below in conjunction with the accompanying drawings, including various details of the embodiments of the present invention to aid understanding. These should be considered merely exemplary. Therefore, those skilled in the art should recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0032] Where there is no conflict, the various embodiments of the present invention and the features thereof may be combined with each other.

[0033] As used herein, the term “and / or” includes any and all combinations of one or more related enumerated entries.

[0034] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used herein, the singular forms “a” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that when the terms “comprising” and / or “made of” are used in this specification, the presence of the stated feature, integral, step, operation, element, and / or component is specified, but the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof is not excluded. Terms such as “connected” or “linked” are not limited to physical or mechanical connections but can include electrical connections, whether direct or indirect.

[0035] Unless otherwise specified, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art. It will also be understood that terms such as those defined in commonly used dictionaries should be interpreted as having the meaning consistent with their meaning in the context of the relevant art and the invention, and will not be interpreted as having an idealized or overly formal meaning unless expressly so defined herein.

[0036] In the technical solution of this invention, the collection, storage, use, processing, transmission, provision, and disclosure of user personal information all comply with relevant laws and regulations and do not violate public order and good morals. The use of user data in this technical solution follows relevant national laws and regulations (e.g., the "Information Security Technology - Personal Information Security Specification"). For example: appropriate measures are taken for personal information access control; restrictions are imposed on the display of personal information; the purpose of using personal information does not exceed the scope of direct or reasonable association; and explicit identity targeting is eliminated when using personal information to avoid precisely locating a specific individual.

[0037] In related technologies, when vehicles frequently follow and stop in traffic jams, the AVH (Auto-Action Hold) function is frequently triggered. Prolonged activation of the AVH function can lead to its degradation. After the AVH function ends, for driving safety, the EPB (Electronic Brake Brake) will clamp the calipers to hold the vehicle in place. At this time, the electric vehicle's gear will also return to P (Park) as the calipers clamp. If the driver wants to start moving, they must shift to D (Drive), leading to customer complaints. Frequent use of the AVH function can even reduce the lifespan of the ESC / IBC (Interlocking Brake) valve.

[0038] To address at least one of the technical problems existing in the aforementioned related technologies, the present invention provides an AVH function control system. Figure 1 This is a schematic diagram of an AVH function control system provided in an embodiment of the present invention.

[0039] like Figure 1 As shown, the AVH function control system includes: a navigation unit (1), a CAN bus unit (2), and a braking unit (3).

[0040] The navigation unit (1) is used to send road traffic information ahead to the braking unit (3).

[0041] In this embodiment, the road traffic information ahead includes the traffic flow ahead and the road congestion index within a set range ahead. In a preferred embodiment, the set range can be 1000m, that is, the road congestion index within a 1000m range ahead is obtained. The navigation unit is used to establish a congestion index data model based on neural network learning. The congestion index data model includes a congestion index, which is defined as: congestion index = α * time factor + β * braking frequency + γ * distance factor (α + β + γ = 1).

[0042] Specifically, the time factor includes the time of day, day of the week, and whether it is a holiday. Braking frequency refers to the historical average number of braking actions or the real-time braking frequency of the vehicle within a specific road segment. Distance factor refers to the average distance or speed difference between vehicles ahead, obtained through vehicle-to-everything (V2X) communication.

[0043] It is understood that the navigation unit (1) is used to provide high-precision maps and real-time traffic information (RTTI). Its core task is to run the built-in AI congestion prediction model (based on time factor, braking frequency, and vehicle distance factor) to calculate the congestion index and predicted congestion duration of the road ahead (e.g., within 1000 meters). The calculated prediction results (congestion index and congestion duration) are used as key input information and sent to the braking unit via the CAN bus.

[0044] The CAN bus unit (2) is used to send driving operation status signals to the braking unit (3).

[0045] In this embodiment, the driving operation status signal includes a gear position signal and a brake pedal status signal.

[0046] Specifically, the gear position signal (D / R / N / P) represents the driver's macroscopic intention regarding the vehicle's driving direction and power transmission. In this embodiment, the gear position signal is usually D or P.

[0047] Specifically, the brake pedal status signal (pressed / released) represents the driver's immediate intention to slow down or keep the vehicle stationary.

[0048] It should be noted that the CAN bus unit (2) provides a communication channel for all other ECUs, responsible for transmitting all necessary signals and data. It follows the standard CAN protocol to ensure that messages can be reliably received and parsed by the target ECU.

[0049] The braking unit (3) is used to output a vehicle speed signal and determine the AVH function status based on the road traffic conditions ahead, the driving operation status signal and the vehicle speed signal.

[0050] In this embodiment, when the braking unit (3) receives a signal that the duration of the road congestion ahead exceeds a threshold, the AVH function is automatically turned off.

[0051] When the braking unit (3) receives a signal that the duration of the road congestion ahead is lower than the threshold, it calculates the braking number threshold N. If N ≤ congestion index * 0.8 + 2, the AVH function is triggered normally; if N > congestion index * 0.8 + 2, the AVH function is automatically turned off.

[0052] When the braking unit (3) receives a signal that the road ahead is not congested, it automatically restarts the AVH function.

[0053] As can be understood, the braking unit (typically ESP / IPB, etc.) receives predictive data from the navigation system and real-time vehicle signals (gear position, vehicle speed, brake pedal status) from the CAN bus. Based on all input information, it executes the judgment logic described in the control strategy to determine whether the AVH function is activated, deactivated, or maintained. It can also send control requests to other actuator systems (braking system, motor control system) and display requests to the instrument cluster based on the decision results.

[0054] The congestion threshold can be set to 5 minutes and dynamically adjusted based on real-time traffic data. The baseline value of the threshold can be set to 5 minutes.

[0055] In this embodiment, the AVH function control system further includes a brake unit (4), a motor controller unit (5), and an instrument (6) that are signal-connected to the brake unit (3).

[0056] Specifically, the brake unit (4) (usually referring to EPB) is used to receive instructions from the brake unit and perform specific clamping (locking) or releasing (unlocking) actions to achieve vehicle parking and release.

[0057] Specifically, the motor controller unit (5) (usually a VCU or MCU) is used to manage the torque output of the vehicle drive motor. It receives requests from the braking unit and maintains the current gear (D gear) after the AVH function is intelligently turned off, avoiding automatic shifting to P gear, thus providing a foundation for the convenient "step on the gas and go" experience.

[0058] Specifically, the instrument (6) is used to receive status information and text messages from the braking system. The current system status and operation prompts are clearly communicated to the driver in the form of text (e.g., "AVH function is off, parking function is on, please press the accelerator pedal to start") or icons to avoid confusion for the driver.

[0059] In this embodiment, when a prolonged traffic jam is predicted, with a duration exceeding 5 minutes, and the driver is expected to frequently start and stop, the AVH (Automatic Driver Assistance) function is automatically disabled to prevent jerking caused by frequent AVH intervention and disengagement.

[0060] When the vehicle is brought to a stop by the driver, the braking system immediately sends a clamping request to the EPB via the CAN bus to achieve parking. Simultaneously, it sends a request to the motor control system to maintain the D gear, preventing it from automatically shifting back to P gear. A message is sent to the instrument cluster: "AVH function is off, parking function is on, please press the accelerator pedal to start."

[0061] For the driver, once the vehicle is stationary and the EPB (Electronic Power Braking) is engaged, the gear remains in Drive (D). The driver only needs to lightly press the accelerator, and the EPB will automatically release, allowing the vehicle to start smoothly without shifting gears. After starting, once the vehicle speed exceeds 3 km / h (calibrated value), the instrument panel warning disappears. When the braking system receives navigation information indicating that the road ahead is clear (congestion duration drops below the threshold), the AVH (Advanced Driver Assistance) function is automatically reactivated.

[0062] In this embodiment, when short-term congestion is predicted, with a congestion duration of ≤ 5 minutes, whether the AVH function is turned off depends on the comparison between the "actual braking frequency" and the "predicted braking frequency." The braking system calculates a dynamic threshold N_max = congestion index * 0.8 + 2. If the actual number of braking N ≤ N_max, it indicates that the traffic flow matches the prediction, and AVH is triggered normally. If the actual number of braking N > N_max, it indicates that the congestion is more severe than predicted, and the AVH function is automatically turned off.

[0063] When the vehicle is brought to a stop by the driver, the braking system immediately sends a clamping request to the EPB via the CAN bus to initiate parking. Simultaneously, it sends a request to the motor control system to maintain Drive (D) to prevent it from automatically shifting back to Park (P). A message is sent to the instrument cluster: "AVH function is off, parking function is on, please press the accelerator pedal to start." After the vehicle starts moving and the speed exceeds 3 km / h (calibrated value), the instrument cluster message disappears, and the braking system automatically reactivates the AVH function when the navigation system indicates that the road ahead is clear (congestion duration drops below the threshold).

[0064] It is understandable that by integrating a navigation unit (integrating a V2X module and a GPS system) to identify the road conditions ahead, the system will not trigger the AVH function in congested areas or areas where a vehicle is about to stop, but will activate the parking brake (EPB) function. At the same time, the gear will not return to P, and the vehicle will start moving as soon as the accelerator is pressed. This functional logic aims to reduce customer complaints, reduce the use of the IBC / ESC valve, and improve the lifespan of the IBC / ESC valve.

[0065] The AVH function control system provided in this application identifies the road conditions ahead by integrating a navigation unit. It automatically shuts off the AVH function and achieves parking control without requiring the driver to operate the AVH switch or the EPB switch, thereby reducing the use of the IBC / ESC valve and improving the lifespan of the IBC / ESC valve.

[0066] The present invention also provides an AVH function control method. Figure 2 A flowchart illustrating the steps of an AVH function control method provided in this embodiment of the invention, applied to the AVH function control system provided in the above embodiment, specifically includes:

[0067] Step 10: Obtain road traffic information ahead.

[0068] In this embodiment, the road traffic information ahead includes the road traffic flow ahead and the road congestion index within 1000 meters ahead. A congestion index data model can be established based on neural network learning. The congestion index data model includes a congestion index, which is defined as α * time factor + β * braking frequency + γ * vehicle distance factor (α + β + γ = 1).

[0069] Specifically, the time factor includes the time of day, day of the week, and whether it is a holiday. Braking frequency refers to the historical average number of braking actions or the real-time braking frequency of the vehicle within a specific road segment. Distance factor refers to the average distance or speed difference between vehicles ahead, obtained through vehicle-to-everything (V2X) communication.

[0070] Step S20: Obtain driving operation status signal.

[0071] In this embodiment, the driving operation status signal includes a gear position signal and a brake pedal status signal.

[0072] Specifically, the gear position signals (D / R / N / P) represent the driver's macroscopic intention regarding the vehicle's direction of travel and power transmission (forward, reverse, coasting, mechanical lock).

[0073] Specifically, the brake pedal status signal (pressed / released) represents the driver's immediate intention to slow down or keep the vehicle stationary.

[0074] Step S30: Obtain the vehicle speed signal, and determine the AVH function status based on the road traffic conditions ahead, the driving operation status signal, and the vehicle speed signal.

[0075] In this embodiment, the AVH function is automatically turned off when the duration of road congestion ahead exceeds 5 minutes.

[0076] When the duration of traffic congestion ahead is less than 5 minutes, the calculated braking threshold N is used. If N ≤ congestion index * 0.8 + 2, the AVH function is triggered normally; if N > congestion index * 0.8 + 2, the AVH function is automatically turned off.

[0077] When the braking unit (3) receives a signal that the road ahead is not congested, it automatically restarts the AVH function.

[0078] In this embodiment, when a prolonged traffic jam is predicted, with a duration exceeding 5 minutes, and the driver is expected to frequently start and stop, the AVH (Automatic Driver Assistance) function is automatically disabled to prevent jerking caused by frequent AVH intervention and disengagement.

[0079] When the vehicle is brought to a stop by the driver, the braking system immediately sends a clamping request to the EPB via the CAN bus to achieve parking. Simultaneously, it sends a request to the motor control system to maintain the D gear, preventing it from automatically shifting back to P gear. A message is sent to the instrument cluster: "AVH function is off, parking function is on, please press the accelerator pedal to start."

[0080] For the driver, once the vehicle is stationary and the EPB (Electronic Power Braking) is engaged, the gear remains in Drive (D). The driver only needs to lightly press the accelerator, and the EPB will automatically release, allowing the vehicle to start smoothly without shifting gears. After starting, once the vehicle speed exceeds 3 km / h (calibrated value), the instrument panel warning disappears. When the braking system receives navigation information indicating that the road ahead is clear (congestion duration drops below the threshold), the AVH (Advanced Driver Assistance) function is automatically reactivated.

[0081] In this embodiment, when short-term congestion is predicted, with a congestion duration of ≤ 5 minutes, whether the AVH function is turned off depends on the comparison between the "actual braking frequency" and the "predicted braking frequency." The braking system calculates a dynamic threshold N_max = congestion index * 0.8 + 2. If the actual number of braking N ≤ N_max, it indicates that the traffic flow matches the prediction, and AVH is triggered normally. If the actual number of braking N > N_max, it indicates that the congestion is more severe than predicted, and the AVH function is automatically turned off.

[0082] When the vehicle is brought to a stop by the driver, the braking system immediately sends a clamping request to the EPB via the CAN bus to initiate parking. Simultaneously, it sends a request to the motor control system to maintain Drive (D) to prevent it from automatically shifting back to Park (P). A message is sent to the instrument cluster: "AVH function is off, parking function is on, please press the accelerator pedal to start." After the vehicle starts moving and the speed exceeds 3 km / h (calibrated value), the instrument cluster message disappears. When the braking system learns through navigation that the road ahead is clear (congestion duration drops below the threshold), it automatically reactivates the AVH function.

[0083] It is understandable that by integrating a navigation unit (integrating a V2X module and a GPS system) to identify the road conditions ahead, the system will not trigger the AVH function in congested areas or areas where a vehicle is about to stop, but will activate the parking brake (EPB) function. At the same time, the gear will not return to P, and the vehicle will start moving as soon as the accelerator is pressed. This functional logic aims to reduce customer complaints, reduce the use of the IBC / ESC valve, and improve the lifespan of the IBC / ESC valve.

[0084] The AVH function control method provided by this invention identifies the road conditions ahead by integrating a navigation unit. It automatically shuts off the AVH function and achieves parking control without requiring the driver to operate the AVH switch or the EPB switch, thereby reducing the use of the IBC / ESC valve and improving the lifespan of the IBC / ESC valve.

[0085] Based on the same inventive concept, embodiments of the present invention also provide an electronic device. Figure 3 This is a structural block diagram of an electronic device provided in an embodiment of the present invention. Figure 3 As shown, an embodiment of the present invention provides an electronic device including: one or more processors 101, a memory 102, and one or more I / O interfaces 103. The memory 102 stores one or more programs, which, when executed by the one or more processors, cause the one or more processors to implement any of the AVH function control methods described in the above embodiments; the one or more I / O interfaces 103 are connected between the processor and the memory, configured to enable information interaction between the processor and the memory.

[0086] The processor 101 is a device with data processing capabilities, including but not limited to a central processing unit (CPU); the memory 102 is a device with data storage capabilities, including but not limited to random access memory (RAM, more specifically SDRAM, DDR, etc.), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), and flash memory (FLASH); the I / O interface (read / write interface) 103 is connected between the processor 101 and the memory 102, and can realize information interaction between the processor 101 and the memory 102, including but not limited to a data bus (Bus).

[0087] In some embodiments, the processor 101, memory 102, and I / O interface 103 are interconnected via bus 104, and thus connected to other components of the computing device.

[0088] In some embodiments, the one or more processors 101 include a field-programmable gate array.

[0089] This invention also provides a computer-readable medium. The computer-readable medium stores a computer program, which, when executed by a processor, implements the steps of any of the AVH function control methods described in the above embodiments. The computer-readable storage medium may be volatile or non-volatile.

[0090] This invention also provides a computer program product, including computer-readable code, or a non-volatile computer-readable storage medium carrying computer-readable code. When the computer-readable code is run in the processor of an electronic device, the processor in the electronic device executes the above-described AVH function control method.

[0091] Those skilled in the art will understand that all or some of the steps, systems, and apparatuses disclosed above, and their functional modules / units, can be implemented as software, firmware, hardware, or suitable combinations thereof. In hardware implementations, the division between functional modules / units mentioned above does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed collaboratively by several physical components. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit (ASIC). Such software can be distributed on a computer-readable storage medium, which may include computer storage media (or non-transitory media) and communication media (or transient media).

[0092] As is known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information, such as computer-readable program instructions, data structures, program modules, or other data. Computer storage media includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), static random access memory (SRAM), flash memory or other memory technologies, portable compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, it is known to those skilled in the art that communication media typically contain computer-readable program instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0093] The computer-readable program instructions described herein can be downloaded from computer-readable storage media to various computing / processing devices, or downloaded via a network, such as the Internet, local area network, wide area network, and / or wireless network, to an external computer or external storage device. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. A network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards them to the computer-readable storage media in the respective computing / processing device.

[0094] The computer program instructions used to perform the operations of this invention may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, etc., and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The computer-readable program instructions may be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or may be connected to an external computer (e.g., via the Internet using an Internet service provider). In some embodiments, electronic circuitry, such as programmable logic circuitry, field-programmable gate arrays (FPGAs), or programmable logic arrays (PLAs), is personalized by utilizing state information from the computer-readable program instructions. This electronic circuitry can execute the computer-readable program instructions to implement various aspects of the invention.

[0095] The computer program product described herein can be implemented specifically through hardware, software, or a combination thereof. In one alternative embodiment, the computer program product is specifically embodied in a computer storage medium; in another alternative embodiment, the computer program product is specifically embodied in a software product, such as a software development kit (SDK), etc.

[0096] Various aspects of the present invention are described herein with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-readable program instructions.

[0097] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus to produce a machine such that, when executed by the processor of the computer or other programmable data processing apparatus, they create means for implementing the functions / actions specified in one or more blocks of the flowchart and / or block diagram. These computer-readable program instructions can also be stored in a computer-readable storage medium that causes a computer, programmable data processing apparatus, and / or other device to operate in a particular manner; thus, the computer-readable medium storing the instructions comprises an article of manufacture that includes instructions for implementing aspects of the functions / actions specified in one or more blocks of the flowchart and / or block diagram.

[0098] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device to cause a series of operational steps to be performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to perform the functions / actions specified in one or more boxes of a flowchart and / or block diagram.

[0099] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of an instruction, which contains one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than those shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0100] Example embodiments have been disclosed herein, and while specific terminology has been used, it is for illustrative purposes only and should be construed as such, and is not intended to be limiting. In some instances, it will be apparent to those skilled in the art that features, characteristics, and / or elements described in conjunction with particular embodiments may be used alone, or in combination with features, characteristics, and / or elements described in conjunction with other embodiments, unless otherwise expressly indicated. Therefore, those skilled in the art will understand that various changes in form and detail may be made without departing from the scope of the invention as set forth in the appended claims.

Claims

1. An AVH function control system, characterized in that, It includes a navigation unit (1), a CAN bus unit (2), and a braking unit (3); wherein: The navigation unit (1) is used to send road traffic information ahead to the braking unit (3); The CAN bus unit (2) is used to send driving operation status signals to the braking unit (3); The braking unit (3) determines the AVH function status based on the road traffic conditions ahead, driving operation status signals and vehicle speed signals.

2. The AVH function control system according to claim 1, characterized in that, The road traffic information ahead includes the traffic flow ahead and the road congestion index within a set range ahead. The congestion index is calculated as α * time factor + β * braking frequency + γ * vehicle distance factor, where α + β + γ = 1.

3. The AVH function control system according to claim 1, characterized in that, The driving operation status signals include gear position signals and brake pedal status signals.

4. The AVH function control system according to claim 1, characterized in that, When the braking unit (3) receives a signal that the duration of road congestion ahead exceeds a threshold, the AVH function is automatically turned off.

5. The AVH function control system according to claim 4, characterized in that, When the vehicle comes to a stop during a traffic jam, the braking unit (3) requests the braking system (4) to clamp the EPB, and at the same time requests the motor controller system (5) not to return to the P gear.

6. The AVH function control system according to claim 5, characterized in that, When the vehicle starts, the braking unit (3) detects that the vehicle speed is greater than the set value and the road ahead is not congested, the braking unit (3) automatically turns on the AVH function.

7. The AVH function control system according to claim 4, characterized in that, When the braking unit (3) receives a signal that the duration of road congestion ahead does not exceed a threshold; Calculate the braking frequency threshold N. If N ≤ congestion index * 0.8 + 2, the AVH function is triggered normally; if N > congestion index * 0.8 + 2, the AVH function is automatically turned off. When the braking unit (3) receives a signal that the road ahead is not congested, it automatically restarts the AVH function.

8. An AVH function control method, characterized in that, include: Get road traffic information ahead; Acquire driving operation status signals; The vehicle speed signal is acquired, and the AVH function status is determined based on the road traffic conditions ahead, the driving operation status signal, and the vehicle speed signal.

9. An electronic device, characterized in that, include: One or more processors; Memory, used to store one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the method as described in claim 8.

10. A computer-readable medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the method as described in claim 8.

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