Vehicle drive-by-wire chassis intelligent control system and method and storage medium

Abstract

The invention discloses a vehicle drive-by-wire chassis intelligent control system and method and a storage medium, and particularly relates to the field of vehicle drive-by-wire. Comprising a multi-source data acquisition module, a first chassis information preprocessing module, a drive-by-wire chassis analysis module, a chassis control strategy generation module, a chassis regulation and control module, a driving behavior monitoring module and a drive-by-wire instruction feedback output module. According to the intelligent control system for the vehicle drive-by-wire chassis, a redundancy control strategy is implemented through the safety redundancy control unit, and the problem of potential safety hazards caused when the control system of the drive-by-wire chassis breaks down is solved; working parameters of the chassis are adjusted in real time by adjusting the adaptability analysis unit, and the adaptability of the drive-by-wire chassis under complex road conditions is improved; a control strategy adapting to extreme weather conditions is formulated through the chassis control strategy generation module, and the reliability and stability of the drive-by-wire chassis in extreme weather are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle control-by-wire, and more specifically, to an intelligent control system and system for a vehicle control-by-wire chassis. Background Art

[0002] With the rapid development of the "new four trends" in the automotive industry - electrification, intelligence, networking, and sharing, the improvement of vehicle automation and intelligence has become an important trend in the automotive industry. As one of the key technologies for realizing autonomous driving, vehicle-by-wire technology is the key to realizing autonomous driving and improving vehicle performance. It uses electronic signals to replace traditional mechanical or hydraulic connections to achieve precise control of the vehicle, improve the response speed and accuracy of braking, and help achieve energy recovery and improve the endurance of new energy vehicles.

[0003] The drive-by-wire chassis technology helps realize the development of autonomous driving functions and provides a reliable underlying control platform for autonomous driving systems, enabling vehicles to sense and respond to changes in the surrounding environment and maintain stability and safety under complex road conditions. It also provides the necessary technical support for the realization of vehicle-to-everything (V2X) and intelligent transportation systems (ITS), greatly promoting the advancement and development of intelligent transportation.

[0004] However, there are still some shortcomings in actual use, such as high reliance on electronic equipment and sensors. The drive-by-wire chassis will bring safety hazards when the electronic control system fails. The adaptability of the drive-by-wire chassis needs to be improved under complex road conditions. Under extreme weather conditions, the reliability and stability of the drive-by-wire chassis need further testing and improvement. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a vehicle-by-wire chassis intelligent control system, method and storage medium, and solves the problems raised in the above-mentioned background technology through the following scheme.

[0006] To achieve the above object, the present invention provides the following technical solutions: A vehicle control-by-wire chassis intelligent control system includes a system operation database, a system central processing module and a user information terminal, and also includes: Multi-source data acquisition module: used to set different types of sensors for the vehicle and the surrounding environment, and obtain the first chassis information collected by the sensors; A first chassis information preprocessing module: used for performing a preprocessing operation on the first chassis information, wherein the preprocessing operation is used for obtaining a first key data group corresponding to the first chassis information; A drive-by-wire chassis analysis module: used to obtain a drive-by-wire chassis analysis model, and obtain second chassis information corresponding to the first chassis information through the first key data group according to the drive-by-wire chassis analysis model; Chassis control strategy generation module: formulates a vehicle chassis control strategy based on the second chassis information, and the vehicle chassis control strategy is used to optimize the performance and safety of the vehicle's wire-controlled chassis; Chassis control module: adjusts based on chassis control strategy and obtains the second key data group corresponding to the chassis control strategy; Driving behavior monitoring module: used to monitor the driver's status through biometric technology, and to monitor and obtain the driver's physiological and psychological status in real time; Wire control command feedback output module: used to output chassis control strategy, chassis regulation strategy, and driver status monitoring results to the driver and relevant management departments through visualization tools; The system operation database includes all data texts of the vehicle's wire-controlled chassis intelligent control system, and collects information texts output by each module in real time. The system central processing module is used for information text instructions output by each module in the central control system, and the user information terminal is an information output device for receiving the vehicle's wire-controlled chassis intelligent control system.

[0007] Preferably, the multi-source data acquisition module includes a vehicle operation acquisition unit, an environment perception acquisition unit, a chassis status acquisition unit, a first chassis information integration unit and a first chassis information output unit; the vehicle operation acquisition unit collects the operation status of the vehicle by installing corresponding sensors of various types; the environment perception acquisition unit collects the driving environment of the vehicle by installing corresponding terminal devices; the chassis status acquisition unit collects the working status of the vehicle chassis through sensors installed on chassis components; the first chassis information integration unit obtains the first chassis information by integrating the data collected by different units; the first chassis information output unit transmits the first chassis information integrated by the first chassis information integration unit to the first chassis information preprocessing module.

[0008] Preferably, the types of various sensors corresponding to the vehicle operation acquisition unit in the multi-source data acquisition module include but are not limited to vehicle speed sensors, acceleration sensors, and steering angle sensors, and the vehicle status information includes the real-time speed of the vehicle in motion, the real-time acceleration of the vehicle in motion, the steering wheel angle of the vehicle in motion, the real-time braking status of the vehicle in motion, the roll angle of the vehicle in motion, the vibration frequency of the vehicle in motion, and the throttle opening of the vehicle in motion; the types of terminal devices corresponding to the environment perception acquisition unit include but are not limited to high-definition cameras, laser radars, millimeter-wave radars, and infrared thermal imagers, and the vehicle driving environment information includes road markings, road obstacles, the positions of other vehicles, pedestrians, and the degree of wetness; the types of sensors on the chassis components corresponding to the chassis status acquisition unit include but are not limited to brake pressure sensors and suspension displacement sensors, and the vehicle chassis information specifically includes brake pressure, brake temperature, suspension compression, steering wheel angle, wheel steering torque output, drive motor working status, and vehicle weight distribution.

[0009] Preferably, the drive-by-wire chassis analysis module includes a first key data group receiving unit, a performance parameter analysis unit, a failure mode analysis unit, an adjustment adaptability analysis unit, a safety redundancy control unit, a second chassis information integration unit, and a second chassis information output unit; the first key data group receiving unit will receive the first key data group corresponding to the first chassis information from the first chassis information preprocessing module; the performance parameter analysis unit analyzes various performance parameters of the vehicle's drive-by-wire chassis according to the first key data group; the failure mode analysis unit analyzes the failure mode and cause of the vehicle's drive-by-wire chassis according to the performance parameters; the adjustment adaptability analysis unit adjusts the working parameters of the drive-by-wire chassis according to the fault diagnosis result; the safety redundancy control unit enables the redundancy scheme to ensure the basic control capability of the vehicle when the vehicle's drive-by-wire chassis system fails; the second chassis information integration unit obtains the second chassis information by integrating the data analyzed by different units; the second chassis information output unit analysis unit sends the second chassis information integrated by the second chassis information integration unit to the chassis control strategy generation module.

[0010] Preferably, the drive-by-wire chassis analysis module includes a performance parameter analysis unit, and the corresponding performance parameters include power parameters, braking parameters, control parameters, energy efficiency parameters, and chassis component status parameters.

[0011] Preferably, the drive-by-wire chassis analysis module includes a failure mode analysis unit, and the corresponding failure modes and causes include sensor failure due to signal loss or excessive error, actuator failure due to motor failure or solenoid valve sticking, electronic control system failure due to software error or hardware damage, and mechanical component failure due to wear or breakage of parts.

[0012] Preferably, the drive-by-wire chassis analysis module includes a safety redundant control unit that provides a redundant control solution, specifically including: based on the second chassis information, issuing an alarm to the failed drive-by-wire chassis of the vehicle and quickly switching to a redundant control mechanism to obtain control measures corresponding to the redundant control mechanism, the control measures including setting and switching backup equipment, emergency measures strategy, self-inspecting the vehicle drive-by-wire chassis and predicting faults, and coordinating with other modules to obtain a drive-by-wire chassis analysis model corresponding to the redundant control mechanism in a preset drive-by-wire chassis database, and the preset drive-by-wire chassis database is used to save the correspondence between the redundant control mechanism and the drive-by-wire chassis analysis model.

[0013] Preferably, the chassis control strategy generation module includes a possible chassis control strategy generation method, including: A1: receiving second chassis information outputted from the drive-by-wire chassis analysis module, the second chassis information including but not limited to various performance parameters of the vehicle, fault diagnosis results, and environmental perception data; A2: Parse and classify the received second chassis information, and discretize it into an effective format that can be used to formulate strategies; A3: Develop corresponding fault response strategies based on the fault diagnosis results in the drive-by-wire chassis analysis module; A4: Integrate fault response strategy, performance optimization strategy, and safety strategy to generate chassis control strategy.

[0014] To achieve the above object, the present invention provides the following technical solution: a vehicle-by-wire chassis intelligent control method, implementing the above-mentioned vehicle-by-wire chassis intelligent control system, comprising: S1: Collecting multi-source data: Setting different types of sensors on the vehicle and the surrounding environment to obtain the first chassis information collected by the sensors; S2: preprocessing the first chassis information: performing a preprocessing operation on the first chassis information, where the preprocessing operation is used to obtain a first key data group corresponding to the first chassis information; S3: analyzing the control-by-wire chassis: obtaining a control-by-wire chassis analysis model, and obtaining second chassis information corresponding to the first chassis information through the first key data group according to the control-by-wire chassis analysis model; S4: generating a chassis control strategy: formulating a vehicle chassis control strategy based on the second chassis information, wherein the vehicle chassis control strategy is used to optimize the performance and safety of the vehicle's wire-controlled chassis; S5: regulating chassis control strategy: making adjustments based on the chassis control strategy to obtain a second key data group corresponding to the chassis control strategy; S6: Monitor driver behavior: Monitor the driver's status through biometric technology, and monitor and obtain the driver's physiological and psychological status in real time; S7: Output of control-by-wire command feedback: used to output chassis control strategy, chassis regulation strategy, and driver status monitoring results to the driver and relevant management departments through visualization tools.

[0015] To achieve the above-mentioned object, the present invention provides a computer-readable medium having a computer program stored thereon, and when the computer program is executed by a processor, a vehicle-by-wire chassis intelligent control system is implemented.

[0016] Technical effects and advantages of the present invention: The present invention solves the potential safety hazard problem caused by a failure of the electronic control system of the wire-controlled chassis by implementing a redundant control strategy through a safety redundant control unit; The present invention improves the reliability and stability of the wire-controlled chassis in extreme weather conditions by formulating a control strategy that adapts to extreme weather conditions through a chassis control strategy generation module; The present invention improves the adaptability of the wire-controlled chassis under complex road conditions by adjusting the adaptability analysis unit and adjusting the chassis operating parameters in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a system flow chart of the present invention.

[0018] Figure 2 It is a system step diagram of the present invention.

[0019] Figure 3 It is a schematic diagram of the system structure of the present invention. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The terms used in the following embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to be used as limitations to the present application. As used in the specification of the present application, the singular expressions "one", "a kind of", "said", "above", "the" and "this" are intended to also include plural expressions, unless there is a clear indication to the contrary in the context. It should also be understood that the term "and / or" used in the present application refers to and includes any or all possible combinations of one or more listed items.

[0022] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features, and in the description of the embodiments of the present application, unless otherwise specified, "plurality" means two or more.

[0023] As attached Figure 1 A vehicle drive-by-wire chassis intelligent control system shown includes a system operation database, a system central processing module and a user information terminal, and also includes a multi-source data acquisition module, a first chassis information preprocessing module, a drive-by-wire chassis analysis module, a chassis control strategy generation module, a chassis control module, a driving behavior monitoring module, and a drive-by-wire command feedback output module.

[0024] The system operation database includes all data texts of the vehicle's wire-controlled chassis intelligent control system, and collects information texts output by each module in real time. The system central processing module is used for information text instructions output by each module in the central control system, and the user information terminal is an information output device for receiving the vehicle's wire-controlled chassis intelligent control system.

[0025] The multi-source data acquisition module is used to set different types of sensors for the vehicle and the surrounding environment to obtain the first chassis information collected by the sensors.

[0026] Specifically, the multi-source data acquisition module includes a vehicle operation acquisition unit, an environment perception acquisition unit, a chassis status acquisition unit, a first chassis information integration unit and a first chassis information output unit; the vehicle operation acquisition unit collects the vehicle operation status by installing corresponding sensors, and the types of sensors include but are not limited to vehicle speed sensors, acceleration sensors, and steering angle sensors. The vehicle status information includes the real-time speed of the vehicle in driving, the real-time acceleration of the vehicle in driving, the real-time steering wheel angle of the vehicle in driving, the real-time braking status of the vehicle in driving, the roll angle of the vehicle during driving, the vibration frequency of the vehicle during driving, and the real-time throttle opening of the vehicle in driving; the environment perception acquisition unit collects the driving environment of the vehicle by installing corresponding terminal devices, and the types of terminal devices include but are not limited to high The vehicle driving environment information includes road markings, road obstacles, the positions of other vehicles, pedestrians, and wetness; the chassis status acquisition unit collects the working status of the vehicle chassis through sensors installed on the chassis components. The types of sensors on the chassis components include but are not limited to brake pressure sensors and suspension displacement sensors. The vehicle chassis information includes brake pressure, brake temperature, suspension compression, steering wheel angle, wheel steering torque output, drive motor working status, and vehicle weight distribution; the first chassis information integration unit obtains the first chassis information by integrating the data collected by different units; the first chassis information output unit transmits the first chassis information integrated by the first chassis information integration unit to the first chassis information preprocessing module.

[0027] The first chassis information preprocessing module is used to perform a preprocessing operation on the first chassis information, and the preprocessing operation is used to obtain a first key data group corresponding to the first chassis information.

[0028] Specifically, after obtaining the first chassis information, the vehicle's wire-controlled chassis intelligent control system can obtain multiple key parameters corresponding to the first chassis information, namely, the first key data group, through preprocessing operations; the preprocessing steps are as follows: data cleaning: remove unnecessary noise data in the first chassis information, standardize the data format, and ensure data consistency and readability; signal denoising: filter the sensor signal, remove noise, extract effective signals, and use filtering algorithms such as low-pass filters, Kalman filters, etc.; data conversion: convert the collected analog signals into digital signals, perform necessary unit conversions, and ensure data unit consistency; feature selection: select the most representative and informative features from the extracted features as the first key data group. Commonly used feature selection algorithms include principal component analysis, linear discriminant analysis, etc.

[0029] The drive-by-wire chassis analysis module is used to obtain a drive-by-wire chassis analysis model, and obtain second chassis information corresponding to the first chassis information through a first key data group according to the drive-by-wire chassis analysis model.

[0030] Specifically, the drive-by-wire chassis analysis model is a pre-constructed learning model. By inputting the first key data group into the drive-by-wire chassis analysis model, the drive-by-wire chassis analysis model obtains the second chassis information according to the first key data group and sends the second chassis information to the user.

[0031] Specifically, the drive-by-wire chassis analysis module includes a first key data group receiving unit, a performance parameter analysis unit, a fault mode analysis unit, an adjustment adaptability analysis unit, a safety redundancy control unit, a second chassis information integration unit, and a second chassis information output unit; the first key data group receiving unit will receive the first key data group corresponding to the first chassis information from the first chassis information preprocessing module; the performance parameter analysis unit analyzes various performance parameters of the vehicle drive-by-wire chassis according to the first key data group, and the performance parameters include power parameters, braking parameters, control parameters, energy efficiency parameters, and chassis component status parameters; the fault mode analysis unit analyzes the fault mode and cause of the vehicle drive-by-wire chassis according to the performance parameters, and the faults that occur Modes and causes include sensor failure due to signal loss and excessive error, actuator failure due to motor failure and solenoid valve sticking, electronic control system failure due to software error and hardware damage, and mechanical component failure due to component wear and breakage; the adaptive analysis unit adjusts the working parameters of the drive-by-wire chassis according to the fault diagnosis results; the safety redundancy control unit enables the redundancy scheme to ensure the basic control capability of the vehicle when the vehicle's drive-by-wire chassis system fails; the second chassis information integration unit obtains the second chassis information by integrating the data analyzed by different units; the second chassis information output unit analysis unit sends the second chassis information integrated by the second chassis information integration unit to the chassis control strategy generation module.

[0032] Specifically, the first key data group receiving unit in the drive-by-wire chassis analysis module is responsible for data docking with the preprocessing module to ensure accurate and timely acquisition of data that has been preliminarily processed and screened; when a fault or performance degradation is detected, the adaptive analysis unit adjusts the relevant parameters of the chassis according to the specific situation by adjusting the algorithm or using backup sensor data to improve its adaptability and performance recovery capabilities; the safety redundant control unit pre-designs a variety of redundant measures, including backup power supplies, backup communication lines, redundant sensors and actuators, etc.

[0033] The safety redundant control unit specifically includes a possible redundant control implementation method, including: based on the second chassis information, an alarm is issued to the faulty vehicle control-by-wire chassis and a redundant control mechanism is quickly switched to obtain control measures corresponding to the redundant control mechanism, the control measures include setting and switching backup equipment, emergency measures strategy, self-inspection of the vehicle control-by-wire chassis and prediction of faults, and coordination with other modules. In a preset control-by-wire chassis database, a control-by-wire chassis analysis model corresponding to the redundant control mechanism is obtained. The preset control-by-wire chassis database is used to save the correspondence between the redundant control mechanism and the control-by-wire chassis analysis model.

[0034] In this embodiment, backup equipment is set up and switched, specifically including: equipping with an independent backup power supply to maintain the normal operation of the vehicle for a certain period of time, ensuring that the vehicle can complete slow driving to a safe area or emergency braking; once a main communication line failure is detected, the backup line is switched, and redundant backup is set up for key sensors and execution equipment.

[0035] In this embodiment, the emergency measures strategy specifically includes: hydraulic braking and an electronic stability control system as a backup braking method. When the main braking system fails, the electronic stability control system adjusts the braking force distribution of the wheels and uses the inertia of the vehicle and the friction between the tires and the ground for emergency braking.

[0036] In this embodiment, self-inspection of the vehicle's wire-controlled chassis specifically includes: regular self-inspection of redundant control mechanisms and vehicle chassis backup equipment; prediction of vehicle wire-controlled chassis failures, based on real-time analysis of sensor data and trend analysis of historical data, predicting possible failures of the main system and key components.

[0037] In this embodiment, the other modules work in coordination, specifically including: a coordinated chassis control strategy generation module, when the vehicle's wire-controlled chassis issues an alarm and quickly switches to a redundant control mechanism, the fault information and vehicle status information are promptly sent to the chassis control strategy generation module, and the control strategy is adjusted according to the fault information and vehicle status information; a coordinated driving behavior monitoring module, after issuing an alarm, obtains the driver's concentration level and operational response information, and if it is found that the driver fails to take countermeasures in time, auxiliary measures are automatically taken according to the vehicle's surrounding environment, and the auxiliary measures include automatic deceleration and adjustment of the vehicle's driving direction.

[0038] The chassis control strategy generation module formulates a vehicle chassis control strategy based on the second chassis information, and the vehicle chassis control strategy acts to optimize the performance and safety of the vehicle's wire-controlled chassis.

[0039] The chassis control strategy generation module specifically includes a possible chassis control strategy generation method, including: A1: receiving second chassis information outputted from the drive-by-wire chassis analysis module, the second chassis information including but not limited to various performance parameters of the vehicle, fault diagnosis results, and environmental perception data; A2: Parse and classify the received second chassis information, and discretize it into an effective format that can be used to formulate strategies; Specifically, in step A2, a power output optimization strategy is formulated for the power performance of the vehicle according to the vehicle speed, throttle opening, and motor working state; In this embodiment, during the acceleration process, the torque output of the drive motor is dynamically adjusted according to the road adhesion and the current load condition of the vehicle to achieve optimal acceleration performance while avoiding wheel slippage.

[0040] Specifically, in step A2, a braking energy recovery strategy and a braking anti-lock strategy are formulated for the braking performance based on the braking pressure, the brake temperature, and the vehicle speed.

[0041] In this embodiment, the reverse torque of the motor is controlled to maximize energy recovery, and the braking pressure is adjusted to ensure that the wheels are not locked during braking, thereby improving braking safety and stability.

[0042] Specifically, in step A2, the optimal steering assist magnitude and steering ratio are calculated according to the steering angle, vehicle speed, and lateral acceleration.

[0043] In this embodiment, a larger steering assist is provided at low speeds; and the steering assist is reduced and the steering ratio is adjusted at high speeds.

[0044] Specifically, in step A2, an adaptive adjustment strategy for suspension stiffness and damping is formulated according to the degree of road bumps, vehicle load, and driving speed.

[0045] In this embodiment, when encountering a bumpy road surface, the suspension stiffness is reduced and the damping is increased; when driving at high speed or turning, the suspension stiffness is increased and the damping is reduced.

[0046] A3: Develop corresponding fault response strategies based on the fault diagnosis results in the drive-by-wire chassis analysis module; In this embodiment, when the vehicle speed sensor fails, the wheel speed sensor data and the vehicle dynamics model are used to estimate the vehicle speed, and the power output and braking control are adjusted accordingly. The vehicle's yaw rate, roll angle and tire adhesion are monitored. When the vehicle exhibits unstable conditions such as skidding, tail swinging or excessive roll, the power distribution and braking pressure are adjusted and braking intervention is performed on a single wheel.

[0047] In this example, when the vehicle is turning, if excessive lateral acceleration is detected, the braking pressure of the outer wheel is automatically increased and the power output of the inner wheel is reduced to prevent the vehicle from skidding.

[0048] A4: Integrate fault response strategy, performance optimization strategy, and safety strategy to generate chassis control strategy.

[0049] The chassis control module is adjusted based on the chassis control strategy to obtain a second key data group corresponding to the chassis control strategy.

[0050] Specifically, the chassis control module generates a chassis control strategy according to the chassis control strategy sent by the chassis control strategy generation module. The chassis control strategy includes adjustment requirements and parameter settings for various chassis systems, including the power system, braking system, steering system, and suspension system, in the form of data instructions. The second chassis information corresponding to the chassis control strategy is collected through sensors installed on various chassis components as an initial reference for adjustment. During the chassis adjustment process, key data related to the adjustment operation is continuously collected and recorded to form a second key data group, which includes actual control parameters of the actuator, response data of the chassis components, and overall operating status data of the vehicle.

[0051] In this embodiment, the actual control parameters of the actuator in the second key data group include the actual output torque of the motor, the actual value of the braking pressure, and the actual size of the steering assist; the response data of the chassis components include the acceleration of the wheels and the displacement change rate of the suspension; the overall operating status data of the vehicle includes the vehicle speed and yaw angular velocity.

[0052] The driving behavior monitoring module is used to monitor the driver's status through biometric technology, and to monitor and obtain the driver's physiological and psychological status in real time.

[0053] Specifically, the driving behavior monitoring module includes a physiological signal acquisition unit, a behavioral feature analysis unit, a psychological state assessment unit, and a data output unit; the physiological signal acquisition unit uses non-invasive sensor equipment to collect the driver's physiological signals, and the driver's physiological signals include the driver's facial expressions, eye states, head movements, heart rate changes, and the driver's breathing frequency and depth; the behavioral feature analysis unit analyzes the driver's operating behavior characteristics, and the operating behavior characteristics include the steering wheel grip, and the accelerator pedal and brake pedal stepping force and frequency; the psychological state assessment unit combines physiological signals and behavioral characteristics, and uses machine learning algorithms and psychological models to assess the driver's psychological state; the data output unit transmits the collected physiological signals, behavioral feature data, and psychological state assessment results to the wire-controlled chassis state judgment module in real time.

[0054] The control-by-wire command feedback output module is used to output chassis control strategies, chassis regulation strategies, and driver status monitoring results to the driver and relevant management departments through visualization tools.

[0055] In this example, the power output strategy is represented by a torque-speed curve, the braking strategy is represented by a braking pressure-time curve, the steering strategy is represented by a steering angle-vehicle speed curve, and the like.

[0056] As attached Figure 2 A vehicle control-by-wire chassis intelligent control method is shown, and the specific steps include: S1: collecting multi-source data, S2: preprocessing first chassis information, S3: analyzing the control-by-wire chassis, S4: generating a chassis control strategy, S5: regulating the chassis control strategy, S6: monitoring driver behavior, and S7: outputting control-by-wire command feedback.

[0057] S1: Collecting multi-source data: Setting different types of sensors on the vehicle and the surrounding environment to obtain the first chassis information collected by the sensors; S2: preprocessing the first chassis information: performing a preprocessing operation on the first chassis information, where the preprocessing operation is used to obtain a first key data group corresponding to the first chassis information; S3: analyzing the control-by-wire chassis: obtaining a control-by-wire chassis analysis model, and obtaining second chassis information corresponding to the first chassis information through the first key data group according to the control-by-wire chassis analysis model; S4: generating a chassis control strategy: formulating a vehicle chassis control strategy based on the second chassis information, wherein the vehicle chassis control strategy is used to optimize the performance and safety of the vehicle's wire-controlled chassis; S5: regulating chassis control strategy: making adjustments based on the chassis control strategy to obtain a second key data group corresponding to the chassis control strategy; S6: Monitor driver behavior: Monitor the driver's status through biometric technology, and monitor and obtain the driver's physiological and psychological status in real time; S7: Output of control-by-wire command feedback: used to output chassis control strategy, chassis regulation strategy, and driver status monitoring results to the driver and relevant management departments through visualization tools.

[0058] In this embodiment, a computer-readable storage medium is also provided. The computer-readable storage medium may be a readable signal medium or a readable storage medium, on which a program product capable of implementing the above-mentioned system of the present disclosure is stored.

[0059] In a possible implementation manner, various aspects of this embodiment can also be implemented in the form of a program product, which includes a program code. When the program product is run on a terminal device, the program code is used to enable the terminal device to execute the steps according to this embodiment described above in this specification; more specific examples of computer-readable storage media in this embodiment may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0060] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other; Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle-by-wire chassis intelligent control system, characterized in that: It includes the system operation database, system central processing module and user information terminal, and also includes: Multi-source data acquisition module: used to set different types of sensors for the vehicle and the surrounding environment, and obtain the first chassis information collected by the sensors; A first chassis information preprocessing module: used for performing a preprocessing operation on the first chassis information, wherein the preprocessing operation is used for obtaining a first key data group corresponding to the first chassis information; A drive-by-wire chassis analysis module: used to obtain a drive-by-wire chassis analysis model, and obtain second chassis information corresponding to the first chassis information through the first key data group according to the drive-by-wire chassis analysis model; Chassis control strategy generation module: formulates a vehicle chassis control strategy based on the second chassis information, and the vehicle chassis control strategy is used to optimize the performance and safety of the vehicle's wire-controlled chassis; Chassis control module: adjusts based on chassis control strategy and obtains the second key data group corresponding to the chassis control strategy; Driving behavior monitoring module: used to monitor the driver's status through biometric technology, and to monitor and obtain the driver's physiological and psychological status in real time; Wire control command feedback output module: used to output chassis control strategy, chassis regulation strategy, and driver status monitoring results to the driver and relevant management departments through visualization tools; The system operation database includes all data texts of the vehicle's wire-controlled chassis intelligent control system, and collects information texts output by each module in real time. The system central processing module is used for information text instructions output by each module in the central control system, and the user information terminal is an information output device for receiving the vehicle's wire-controlled chassis intelligent control system.

2. The vehicle-by-wire chassis intelligent control system according to claim 1, characterized in that: The multi-source data acquisition module includes a vehicle operation acquisition unit, an environment perception acquisition unit, a chassis status acquisition unit, a first chassis information integration unit, and a first chassis information output unit; the vehicle operation acquisition unit collects the vehicle's operation status by installing corresponding various sensors; The environment perception and collection unit collects the environment in which the vehicle is traveling by installing corresponding terminal equipment; The chassis status acquisition unit acquires the working status of the vehicle chassis through sensors installed on chassis components; The first chassis information integration unit obtains the first chassis information by integrating the data collected by different units; The first chassis information output unit transmits the first chassis information integrated by the first chassis information integration unit to the first chassis information preprocessing module.

3. The vehicle-by-wire chassis intelligent control system according to claim 2, characterized in that: The types of various sensors corresponding to the vehicle operation acquisition unit in the multi-source data acquisition module include but are not limited to vehicle speed sensors, acceleration sensors, and steering angle sensors. The vehicle status information includes the speed of the real-time driving vehicle, the acceleration of the real-time driving vehicle, the steering wheel angle of the real-time driving vehicle, the braking status of the real-time driving vehicle, the roll angle of the vehicle during driving, the vibration frequency of the vehicle during driving, and the throttle opening of the real-time driving vehicle; the types of terminal devices corresponding to the environment perception acquisition unit include but are not limited to high-definition cameras, laser radars, millimeter-wave radars, and infrared thermal imagers. The vehicle driving environment information includes road markings, road obstacles, the positions of other vehicles, pedestrians, and the degree of wetness; The types of sensors on the chassis components corresponding to the chassis status acquisition unit include but are not limited to brake pressure sensors and suspension displacement sensors. The vehicle chassis information specifically includes brake pressure, brake temperature, suspension compression, steering wheel angle, wheel steering torque output, drive motor working status, and vehicle weight distribution.

4. The vehicle-by-wire chassis intelligent control system according to claim 1, characterized in that: The control-by-wire chassis analysis module includes a first key data group receiving unit, a performance parameter analysis unit, a failure mode analysis unit, an adjustment adaptability analysis unit, a safety redundancy control unit, a second chassis information integration unit, and a second chassis information output unit; the first key data group receiving unit receives the first key data group corresponding to the first chassis information from the first chassis information preprocessing module; The performance parameter analysis unit analyzes various performance parameters of the vehicle's wire-controlled chassis according to the first key data group; the failure mode analysis unit analyzes the failure mode and cause of the vehicle's wire-controlled chassis according to the performance parameters; The adaptive analysis unit is adjusted to adjust the working parameters of the drive-by-wire chassis according to the fault diagnosis result; The safety redundancy control unit activates the redundancy scheme to ensure the basic control capability of the vehicle when the vehicle's wire-controlled chassis system fails; the second chassis information integration unit obtains the second chassis information by integrating the data analyzed by different units; the second chassis information output unit analysis unit sends the second chassis information integrated by the second chassis information integration unit to the chassis control strategy generation module.

5. The vehicle-by-wire chassis intelligent control system according to claim 4, characterized in that: The drive-by-wire chassis analysis module includes a performance parameter analysis unit, and the corresponding performance parameters include power parameters, braking parameters, control parameters, energy efficiency parameters, and chassis component status parameters.

6. The vehicle-by-wire chassis intelligent control system according to claim 4, characterized in that: The control-by-wire chassis analysis module includes a failure mode analysis unit, and the corresponding failure modes and causes include sensor failure due to signal loss or excessive error, actuator failure due to motor failure or solenoid valve sticking, electronic control system failure due to software error or hardware damage, and mechanical component failure due to wear or breakage of parts.

7. The vehicle-by-wire chassis intelligent control system according to claim 4, characterized in that: The control-by-wire chassis analysis module includes a safety redundant control unit that provides a redundant control solution, specifically including: based on the second chassis information, issuing an alarm for the faulty control-by-wire chassis of the vehicle and quickly switching to a redundant control mechanism to obtain control measures corresponding to the redundant control mechanism, the control measures including setting and switching backup equipment, emergency measures strategy, self-inspecting the vehicle control-by-wire chassis and predicting faults, and working in coordination with other modules, obtaining a control-by-wire chassis analysis model corresponding to the redundant control mechanism in a preset control-by-wire chassis database, and the preset control-by-wire chassis database is used to store the correspondence between the redundant control mechanism and the control-by-wire chassis analysis model.

8. The vehicle-by-wire chassis intelligent control system according to claim 1, characterized in that: The chassis control strategy generation module includes a possible chassis control strategy generation method, including: A1: receiving second chassis information outputted from the drive-by-wire chassis analysis module, the second chassis information including but not limited to various performance parameters of the vehicle, fault diagnosis results, and environmental perception data; A2: Parse and classify the received second chassis information, and discretize it into an effective format that can be used to formulate strategies; A3: Develop corresponding fault response strategies based on the fault diagnosis results in the drive-by-wire chassis analysis module; A4: Integrate fault response strategy, performance optimization strategy, and safety strategy to generate chassis control strategy.

9. A vehicle-by-wire chassis intelligent control method, used in a vehicle-by-wire chassis intelligent control system according to any one of claims 1 to 8, characterized in that: include: S1: Collecting multi-source data: Setting different types of sensors on the vehicle and the surrounding environment to obtain the first chassis information collected by the sensors; S2: preprocessing the first chassis information: performing a preprocessing operation on the first chassis information, where the preprocessing operation is used to obtain a first key data group corresponding to the first chassis information; S3: analyzing the control-by-wire chassis: obtaining a control-by-wire chassis analysis model, and obtaining second chassis information corresponding to the first chassis information through the first key data group according to the control-by-wire chassis analysis model; S4: generating a chassis control strategy: formulating a vehicle chassis control strategy based on the second chassis information, wherein the vehicle chassis control strategy is used to optimize the performance and safety of the vehicle's wire-controlled chassis; S5: regulating chassis control strategy: making adjustments based on the chassis control strategy to obtain a second key data group corresponding to the chassis control strategy; S6: Monitor driver behavior: Monitor the driver's status through biometric technology, and monitor and obtain the driver's physiological and psychological status in real time; S7: Output of control-by-wire command feedback: used to output chassis control strategy, chassis regulation strategy, and driver status monitoring results to the driver and relevant management departments through visualization tools.

10. A computer readable medium having a computer program stored thereon, characterized in that: The computer program, when executed by a processor, is used for a vehicle-by-wire chassis intelligent control system according to any one of claims 1 to 8.

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