Adaptive fuzzy control based electromagnetic linkage type motor vehicle constant speed cruise system

By using an adaptive fuzzy control algorithm and an electromagnetic linkage servo actuator, combined with a safety warning module, the problems of low speed control accuracy, low fuel efficiency, and insufficient safety in motor vehicle cruise control systems have been solved, achieving precise adjustment, convenient operation, and full-process safety monitoring.

CN122323764APending Publication Date: 2026-07-03HEBEI JUNRUI NEW ENERGY AUTOMOBILE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEBEI JUNRUI NEW ENERGY AUTOMOBILE CO LTD
Filing Date
2026-06-02
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing motor vehicle cruise control systems lack adaptive fuzzy control and electromagnetic linkage, resulting in low speed control accuracy, low fuel efficiency, long-distance driving fatigue, and insufficient safety.

Method used

It adopts an adaptive fuzzy control algorithm combined with an electromagnetic linkage servo actuator to achieve automatic throttle adjustment, and is equipped with a safety warning module to monitor vehicle speed and braking system in real time, providing multiple release mechanisms and reset gear optimization.

Benefits of technology

It achieves precise speed adjustment, full utilization of fuel, convenient operation, and full-process safety monitoring, thereby improving driving comfort and driving safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of intelligent commerce technology, and more particularly to an electromagnetic linkage-based vehicle cruise control system based on adaptive fuzzy control. The system includes: a control switch for receiving input commands from the driver, including commands to activate / deactivate cruise control, accelerate / decelerate, cancel, and resume cruise control; a central controller connected to both a vehicle speed sensor and the control switch, the central controller incorporating an adaptive fuzzy control algorithm to generate throttle control commands based on the deviation between the current vehicle speed and a set speed; a servo actuator electrically connected to the central controller; and a motor that receives commands from the central controller to drive a synchronous belt. This invention achieves automatic and precise throttle adjustment and stable cruise control in motor vehicles, solving the problems of driver fatigue and poor driving comfort caused by the need for continuous manual throttle control during long-distance driving.
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Description

Technical Field

[0001] This invention relates to the field of intelligent commerce technology, and in particular to an electromagnetic linkage-based vehicle cruise control system based on adaptive fuzzy control. Background Technology

[0002] Electromagnetic linkage-based vehicles rely on electromagnetic field coupling to replace or assist traditional mechanical transmission in completing power transmission and control. They utilize electromagnetic induction and force to achieve power linkage, primarily working in conjunction with components such as electromagnetic clutches, electromagnetic couplers, and electromagnetic transmissions. By adjusting the current and voltage to change the electromagnetic intensity, torque and speed can be steplessly controlled, resulting in smoother power transitions. These vehicles simplify the mechanical transmission structure, reduce mechanical friction and energy loss, improve transmission efficiency and response speed, and lower maintenance costs. Currently, related technologies have evolved into electromagnetic hybrid systems, electromagnetic drive axles, and other forms, adaptable to various new energy vehicle architectures, including pure electric and hybrid vehicles.

[0003] In existing technologies, most motor vehicle cruise control systems use traditional electronic control or simple mechanical structures, requiring the driver to manually operate the throttle to maintain vehicle speed. Speed ​​adjustment and recovery rely on manual operation, and there is a lack of real-time safety monitoring and active protection mechanisms. Because they do not combine adaptive fuzzy control algorithms and electromagnetic linkage execution structures, and do not have systematic safety warnings and multiple deactivation protections, problems such as fatigue during long-distance driving, low speed control accuracy and high fuel consumption, and insufficient safety protection under abnormal operating conditions arise. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides the following technical solution: An electromagnetic linkage-based vehicle cruise control system based on adaptive fuzzy control includes: A control switch is used to receive input commands from the driver, including commands to activate or deactivate cruise control, accelerate, decelerate, cancel, and resume cruise control.

[0005] The central controller is connected to the vehicle speed sensor and the control switch signal respectively. The central controller has a built-in adaptive fuzzy control algorithm to generate throttle control commands based on the deviation between the current vehicle speed and the set vehicle speed.

[0006] The servo actuator, electrically connected to the central controller, includes a motor, synchronous belt, pulley, lead screw, electromagnetic stationary iron, moving iron plate, pull lock sleeve, and pull cable.

[0007] The motor receives instructions from the central controller to drive the synchronous belt, which in turn drives the pulley, which in turn drives the lead screw to rotate.

[0008] The electromagnetic stationary iron generates magnetic force to attract the moving iron piece according to the signal from the central controller, causing the electromagnetic stationary iron, the moving iron piece, and the pull lock sleeve to move along the axis of the lead screw.

[0009] One end of the cable is connected to the zipper sleeve, and the other end is used to connect to the accelerator lever of the motor vehicle.

[0010] In the above technical solution, a complete cruise control system is built through the collaboration of multiple components, and the control switch can accurately collect various control commands from the driver. The central controller relies on an adaptive fuzzy control algorithm to intelligently adapt to complex driving conditions and accurately correct vehicle speed deviations. Combined with an electromagnetically linked servo actuator, the throttle is adjusted through a combination of mechanical transmission and electromagnetic attraction, resulting in stable transmission, precise control, and effectively improved cruise control smoothness.

[0011] As an improvement to the above technical solution: The central controller also includes a safety warning module, which is used to monitor the status of the braking system and vehicle speed fluctuations in real time. When the vehicle speed fluctuation exceeds a preset threshold or the braking system is abnormal, it automatically issues a speed control cancellation command.

[0012] The aforementioned technical solution incorporates a safety warning module that can collect braking system operating data and monitor real-time vehicle speed fluctuations around the clock. Upon detecting dangerous conditions such as excessive speed fluctuations or brake malfunctions, it can instantly trigger a cruise control cancellation command, quickly terminating the cruise mode. This effectively avoids driving risks under abnormal conditions, compensates for the lack of safety monitoring in traditional cruise control systems, and significantly improves driving safety.

[0013] As an improvement to the above technical solution: The control switch has a reset position. When cruise control is deactivated, rotating the switch to the reset position will cause the central controller to recall the preset speed stored before deactivation and restore cruise control.

[0014] In the above technical solution, an independent reset position is added to the control switch, optimizing the cruise control recovery logic. After the vehicle's cruise control is deactivated due to various operating conditions, the driver does not need to re-enter the set speed; simply switching to the reset position automatically retrieves the historical set speed stored in the system and resumes cruise control. This simplifies driving operations, improves the ease of reusing the cruise control function, and is suitable for high-speed and long-distance driving scenarios.

[0015] As an improvement to the above technical solution: The control switch has a manual acceleration gear and a manual deceleration gear. In cruise control mode, each time the acceleration gear or the deceleration gear is triggered, the central controller increases or decreases the set vehicle speed by 2 kilometers per hour, and continuously accelerates or decelerates while maintaining the gear.

[0016] The aforementioned technical solution optimizes the manual speed control logic and sets dedicated manual acceleration and deceleration gears. During cruise control, a single gear selection allows for precise speed adjustments of up to 2 kilometers per hour, while holding the gear selector enables continuous, uniform speed adjustments. The speed control is precise and responsive, adapting to the needs of fine-tuning speeds in scenarios such as traffic flow changes and hill starts, preventing sudden speed fluctuations and improving driving comfort.

[0017] As an improvement to the above technical solution: The central controller has a speed range of 40 km / h to 120 km / h, with a speed deviation of no more than 2 km / h, and is only allowed to enter cruise control mode when the vehicle is traveling on a Class III or higher standard highway.

[0018] The aforementioned technical solution defines scientifically sound cruise control parameters and road conditions. A constant speed range of 40-120 km / h adapts to the needs of regular road driving, while a low deviation of ±2 km / h ensures stable speed. Furthermore, cruise control is limited to Class III and above standard highways to avoid cruise control loss issues in bumpy or complex road conditions, balancing cruise practicality and driving safety.

[0019] As an improvement to the above technical solution: The servo actuator operates at a DC voltage of 16-32 volts, has a standby current of ≤40 mA, an operating current of ≤1 amp, and an update rate of 0.1 seconds.

[0020] The aforementioned technical solution specifies precise operating parameters for the servo actuator, and its 16-32 volt wide-range DC voltage adapts to mainstream automotive power supply systems. Low standby and operating current effectively reduce equipment energy consumption. A high-speed data update rate of 0.1 seconds enables rapid response to throttle adjustment commands, significantly improving the system's real-time speed control and sensitivity, and ensuring stable cruising.

[0021] As an improvement to the above technical solution: A method of using an electromagnetic linkage-based vehicle cruise control system based on adaptive fuzzy control as described in any one of claims 1 to 6, comprising the following steps: S1: Start the vehicle engine to power on the vehicle's electronic systems and put the cruise control system into standby mode.

[0022] S2: When the vehicle speed reaches 40 kilometers per hour or more, the yellow cruise control indicator light on the instrument panel will illuminate, indicating that the cruise control conditions have been met.

[0023] S3: Rotate the control switch to the S- position. After receiving the signal, the central controller drives the servo actuator to adjust the throttle cable position through the adaptive fuzzy control algorithm, so that the vehicle enters the cruise control state. At the same time, the instrument indicator light changes from yellow to green.

[0024] S4: In cruise control mode, the speed can be manually adjusted by operating the control switch: rotate to the R+ position to accelerate, rotate to the S- position to decelerate, and the vehicle speed changes by 2 kilometers per hour with each rotation, continuously changing.

[0025] S5: When you need to disengage cruise control, use any of the following methods: turn the control switch to the OFF position, depress the clutch pedal or the brake pedal, and the system will automatically disengage cruise control, and the indicator light will change from green to yellow.

[0026] S6: After cruise control is deactivated, if you need to restore the vehicle speed to the previously set speed, turn the control switch to the RESUME position. The central controller will recall the stored set speed and automatically restore the cruise control status.

[0027] S7: During cruise control, the safety warning module in the central controller monitors the braking system status and vehicle speed fluctuations in real time. When the vehicle speed fluctuation exceeds the preset threshold or an abnormality in the braking system is detected, the system automatically disengages cruise control and illuminates the fault indicator light.

[0028] The above technical solution features a standardized and easy-to-use method, covering the entire process of system standby, startup, speed adjustment, deactivation, and recovery. It offers multiple cruise deactivation methods to adapt to various unexpected driving scenarios, and is equipped with a real-time safety fault monitoring mechanism. The operation is simple and highly fault-tolerant, while the indicator lights provide intuitive feedback on the system's operating status, allowing drivers to easily monitor the cruise control status in real time, ensuring safety and convenience.

[0029] The beneficial effects of this invention are: 1. In this invention, an adaptive fuzzy control algorithm built into the central controller is used in conjunction with an electromagnetic linkage servo actuator. This enables automatic and precise adjustment of the vehicle's throttle and stable constant speed driving, solving the problems of driver fatigue and poor driving comfort caused by the need for continuous manual control of the throttle during long-distance driving.

[0030] 2. In this invention, by controlling the switch inching, continuous acceleration and deceleration, vehicle speed memory recovery, and standardized parameter control, precise adjustment of constant speed, full utilization of fuel combustion, and convenient operation are achieved. This solves the problems of large speed fluctuations, low fuel utilization, and cumbersome speed adjustment and recovery operations associated with manual speed control.

[0031] 3. In this invention, the central controller safety warning module provides real-time monitoring, multiple cruise control cancellation mechanisms, and automatic anomaly protection. This achieves full-process safety monitoring and instantaneous response to anomalies during cruise control, solving the problem of insufficient driving safety due to the lack of active protection against abnormal vehicle speed and braking system malfunctions during cruise control. Attached Figure Description

[0032] Figure 1This is a schematic diagram showing the external dimensions of the cruise control actuator in this invention; Figure 2 This is a schematic diagram showing the external dimensions of the central controller in this invention; Figure 3 This is a schematic diagram of the interface of the present invention; Figure 4 This is a schematic diagram of the external shape of the central controller in this invention; Figure 5 This is a pin definition diagram of the 24-pin integrated interface of the central controller in this invention; Figure 6 This is a system architecture diagram of the present invention; Figure 7 This is a flowchart of the method of the present invention. Detailed Implementation

[0033] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0034] See appendix Figure 1 To be continued Figure 7 An electromagnetic linkage-based vehicle cruise control system based on adaptive fuzzy control, comprising: The control switch is used to receive input commands from the driver, including commands to activate or deactivate cruise control, accelerate, decelerate, cancel, and resume cruise control.

[0035] The central controller is connected to the vehicle speed sensor and control switch signals. The central controller has a built-in adaptive fuzzy control algorithm to generate throttle control commands based on the deviation between the current vehicle speed and the set vehicle speed.

[0036] The servo actuator, electrically connected to the central controller, includes a motor, synchronous belt, pulley, lead screw, electromagnetic stationary iron, moving iron plate, pull lock sleeve, and pull cable.

[0037] The motor receives instructions from the central controller to drive the synchronous belt, which in turn drives the pulley, which in turn drives the lead screw to rotate.

[0038] The electromagnetic stationary iron generates magnetic force to attract the moving iron piece according to the signal from the central controller, causing the electromagnetic stationary iron, the moving iron piece, and the pull lock sleeve to move along the axis of the lead screw.

[0039] One end of the cable is connected to the zipper slide sleeve, and the other end is used to connect to the accelerator lever of the motor vehicle.

[0040] In one embodiment, the servo actuator has two M6 mounting holes to fit the engine compartment of a motor vehicle, and its external dimensions strictly follow the standard design of 1300±6mm, 235±2.5mm, 37.9mm, 26mm, 200±5mm, 48mm, 101mm, and 130mm.

[0041] The servo actuator is equipped with a 6-pin basic electrical interface. Pin 1 is the actuator coil +, pin 2 is the actuator motor +, pin 3 is the actuator motor -, pin 4 is the actuator high position, pin 5 is the actuator component signal, and pin 6 is the ground pin, which can be stably connected to the central controller.

[0042] The electromagnetic fixed iron and moving iron plate have a pull gap of ≤1mm, the pull response is synchronized with the rotation of the lead screw, the axial movement stroke of the pull lock sleeve is linearly corresponding to the opening of the throttle lever, and the throttle size is precisely adjusted by the pull line to realize automatic throttle adjustment under adaptive fuzzy control.

[0043] See appendix Figure 1 To be continued Figure 7 The central controller also includes a safety warning module, which is used to monitor the status of the braking system and vehicle speed fluctuations in real time. When the vehicle speed fluctuation exceeds a preset threshold or the braking system is abnormal, it automatically issues a cruise control release command.

[0044] In one embodiment, the safety warning module presets a vehicle speed fluctuation threshold of ±2 km / h. If the speed exceeds this threshold, it immediately determines that the vehicle speed is abnormal. At the same time, it collects the brake pedal signal in real time. When the braking system experiences abnormalities such as power failure or signal interruption, the module immediately triggers the protection logic. After the speed control release command is issued, the central controller cuts off the power supply to the servo actuator within 0.1 seconds, terminates the automatic throttle adjustment, and the vehicle returns to manual driving. The instrument indicator light switches from a green working light to a yellow standby light, and safety pressure relief and status indication are completed simultaneously.

[0045] See appendix Figure 1 To be continued Figure 7 The control switch has a reset position. When cruise control is deactivated, rotating it to the reset position will cause the central controller to recall the preset speed stored before deactivation and restore cruise control.

[0046] In one embodiment, the central controller has a built-in non-volatile memory unit that automatically and in real time memorizes the current set speed after cruise control is started. The data is permanently saved after power failure or cruise control is released. After cruise control is released, rotating the control switch to the reset position will cause the central controller to immediately recall the stored original speed, restart the adaptive fuzzy control algorithm, and drive the servo actuator to restore the original speed cruise control, without requiring the driver to manually set the speed again.

[0047] See appendix Figure 1 To be continued Figure 7The control switch has manual acceleration and manual deceleration modes. In cruise control mode, each time the acceleration or deceleration mode is triggered, the central controller increases or decreases the set speed by 2 kilometers per hour, and continuously accelerates or decelerates while maintaining the gear.

[0048] In one embodiment, the manual acceleration gear is the cruise control switch S / + position, and the manual deceleration gear is the cruise control switch S / - position. A brief rotation of the S / + position increases the vehicle speed by 2 km / h, and a brief rotation of the S / - position decreases the vehicle speed by 2 km / h. Maintaining the S / + or S / - position continuously outputs acceleration / deceleration commands at a 0.1-second update rate, and the servo actuator synchronously and continuously adjusts the throttle to achieve continuous acceleration and deceleration of the vehicle, meeting the dynamic speed adjustment requirements for overtaking and avoiding other vehicles.

[0049] See appendix Figure 1 To be continued Figure 7 The central controller has a speed range of 40 km / h to 120 km / h, with a speed deviation of no more than 2 km / h, and cruise control mode is only allowed when the vehicle is traveling on a Class III or higher standard highway.

[0050] In one embodiment, when the vehicle speed is below 40 km / h, the central controller locks the cruise control function, and the yellow standby indicator light on the instrument panel does not illuminate. When the vehicle speed is between 40-120 km / h and the vehicle is traveling on a Class III or higher standard highway, the system meets the cruise control conditions, the yellow standby indicator light illuminates, and the adaptive fuzzy control algorithm corrects the speed deviation in real time, controlling the error between the actual vehicle speed and the set vehicle speed within ±2 km / h. In congested sections, mountain roads, construction sections, and other non-standard highways, as well as in adverse weather conditions such as rain, snow, and fog, the central controller automatically disables the cruise control function to ensure driving safety.

[0051] See appendix Figure 1 To be continued Figure 7 The servo actuator operates at a DC voltage of 16-32 volts, with a standby current of ≤40 mA, a working current of ≤1 amp, and a refresh rate of 0.1 seconds.

[0052] In one embodiment, the servo module of the servo actuator operates at a temperature of -30℃ to +110℃, and the central control module of the central controller operates at a temperature of -40℃ to +85℃, adapting to extreme operating conditions of motor vehicles. The system is equipped with a 24-pin integrated electrical interface, where pin 1 is a 24V power supply pin, pin 2 is the cruise switch common ground pin, pin 3 is the cruise switch OFF signal pin, pin 4 is an unused pin, pin 5 is the cruise switch self-reset signal pin, pin 6 is the cruise switch S / + signal pin, pin 17 is the actuator coil +, pin 18 is the motor power +, pin 19 is the motor power -, and pin 23 is the vehicle speed sensor signal pin. The electrical connection is stable and interference-free. The system completes signal acquisition and command output every 0.1 seconds, with standby power consumption ≤40mA and maximum operating current ≤1A, balancing control response speed and vehicle electrical safety.

[0053] See appendix Figure 1 To be continued Figure 7 A method of using an electromagnetic linkage-based vehicle cruise control system based on adaptive fuzzy control as described in any one of claims 1 to 6, comprising the following steps: S1: Start the vehicle engine to power on the vehicle's electronic systems and put the cruise control system into standby mode.

[0054] S2: When the vehicle speed reaches 40 kilometers per hour or more, the yellow cruise control indicator light on the instrument panel will illuminate, indicating that the cruise control conditions have been met.

[0055] S3: Rotate the control switch to the S- position. After receiving the signal, the central controller drives the servo actuator to adjust the throttle cable position through the adaptive fuzzy control algorithm, so that the vehicle enters the cruise control state. At the same time, the instrument indicator light changes from yellow to green.

[0056] S4: In cruise control mode, the speed can be manually adjusted by operating the control switch: rotate to the R+ position to accelerate, rotate to the S- position to decelerate, and the vehicle speed changes by 2 kilometers per hour with each rotation, continuously changing.

[0057] S5: When you need to disengage cruise control, use any of the following methods: turn the control switch to the OFF position, depress the clutch pedal or the brake pedal, and the system will automatically disengage cruise control, and the indicator light will change from green to yellow.

[0058] S6: After cruise control is deactivated, if you need to restore the vehicle speed to the previously set speed, turn the control switch to the RESUME position. The central controller will recall the stored set speed and automatically restore the cruise control status.

[0059] S7: During cruise control, the safety warning module in the central controller monitors the braking system status and vehicle speed fluctuations in real time. When the vehicle speed fluctuation exceeds the preset threshold or an abnormality in the braking system is detected, the system automatically disengages cruise control and illuminates the fault indicator light.

[0060] In one embodiment, the use of the cruise control system is limited to driving on Class III or higher standard highways, and is strictly prohibited in congested sections, mountain roads, construction sections, and in adverse weather conditions such as rain, snow, fog, ice, and strong winds.

[0061] The central controller runs an adaptive fuzzy control algorithm with a signal update rate of 0.1 seconds, strictly controlling the deviation between the actual driving speed and the set speed within ±2 kilometers per hour. The effective speed control range is 40 kilometers per hour to 120 kilometers per hour. When the speed is below 40 kilometers per hour, the system permanently locks the speed control start permission.

[0062] The system operates at a voltage of 16-32 volts DC, with a standby current of ≤40 mA and a maximum operating current of no more than 1 amp. The servo module can adapt to ambient temperatures of -30℃ to +110℃, and the central control module can adapt to ambient temperatures of -40℃ to +85℃, ensuring stable electrical and mechanical control throughout the process.

[0063] The safety warning module has a preset speed fluctuation threshold of ±2 km / h. When the speed fluctuation exceeds the threshold, the braking system loses power, or the signal is abnormal, the central controller quickly collects the trigger signal through the 15 clutch signal pin and the 16 brake signal pin of the 24-pin integrated interface, instantly releases the speed control and illuminates the fault indicator light on the center console.

[0064] After cruise control is released, the central controller's built-in storage unit permanently saves the set speed before release. Rotating the control switch to the RESUME position will restore the original speed cruise control with one click, without the need for repeated setting. During use, the driver must maintain full concentration. If the system malfunctions, such as unresponsive buttons or inability to maintain cruise control, it should be stopped immediately and handed over to a professional automotive mechanic for inspection and repair.

[0065] The above embodiments are merely illustrative of the technical solutions of the present invention and are not intended to limit it. Anyone skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. An electromagnetic linkage type motor vehicle cruise control system based on adaptive fuzzy control, characterized by, include: A control switch is used to receive input commands from the driver, including commands to activate or deactivate cruise control, accelerate, decelerate, cancel, and resume cruise control. The central controller is connected to the vehicle speed sensor and the control switch signal respectively. The central controller has a built-in adaptive fuzzy control algorithm to generate throttle control commands based on the deviation between the current vehicle speed and the set vehicle speed. The servo actuator, electrically connected to the central controller, includes a motor, synchronous belt, pulley, lead screw, electromagnetic stationary iron, moving iron plate, pull lock sleeve, and pull cable; The motor receives instructions from the central controller to drive the synchronous belt, the synchronous belt drives the pulley, and the pulley drives the lead screw to rotate. The electromagnetic stationary iron generates magnetic force to attract the moving iron piece according to the signal from the central controller, causing the electromagnetic stationary iron, the moving iron piece, and the pull lock sleeve to move along the axial direction of the lead screw; One end of the cable is connected to the zipper sleeve, and the other end is used to connect to the accelerator lever of the motor vehicle.

2. The adaptive fuzzy control based electromagnetic linkage motor vehicle cruise control system of claim 1, wherein: The central controller also includes a safety warning module, which is used to monitor the status of the braking system and vehicle speed fluctuations in real time. When the vehicle speed fluctuation exceeds a preset threshold or the braking system is abnormal, it automatically issues a speed control cancellation command.

3. The adaptive fuzzy control based electromagnetic linkage motor vehicle cruise control system of claim 1, wherein: The control switch has a reset position. When cruise control is deactivated, rotating the switch to the reset position will cause the central controller to recall the preset vehicle speed stored before deactivation and restore the cruise control status.

4. The adaptive fuzzy control based electromagnetic linkage motor vehicle cruise control system of claim 1, wherein: The control switch has a manual acceleration gear and a manual deceleration gear. In cruise control mode, each time the acceleration gear or the deceleration gear is triggered, the central controller increases or decreases the set vehicle speed by 2 kilometers per hour, and continuously accelerates or decelerates while maintaining the gear.

5. The electromagnetic linkage-based vehicle cruise control system based on adaptive fuzzy control according to claim 1, characterized in that: The central controller has a speed range of 40 km / h to 120 km / h, with a speed deviation of no more than 2 km / h, and is only allowed to enter cruise control mode when the vehicle is traveling on a Class III or higher standard highway.

6. The electromagnetic linkage-based vehicle cruise control system based on adaptive fuzzy control according to claim 1, characterized in that: The servo actuator operates at a DC voltage of 16-32 volts, has a standby current of ≤40 mA, an operating current of ≤1 amp, and an update rate of 0.1 seconds.

7. A method of using an electromagnetic linkage-based vehicle cruise control system based on adaptive fuzzy control as described in any one of claims 1 to 6, characterized in that, Includes the following steps: S1: Start the vehicle engine to power on the vehicle's electronic systems and put the cruise control system into standby mode; S2: When the vehicle speed reaches 40 kilometers per hour or more, the yellow light of the cruise indicator on the instrument panel will illuminate, indicating that the constant speed condition has been reached; S3: Rotate the control switch to the S- position. After receiving the signal, the central controller drives the servo actuator to adjust the throttle cable position through the adaptive fuzzy control algorithm, so that the vehicle enters the cruise control state. At the same time, the instrument indicator light changes from yellow to green. S4: In cruise control mode, you can manually adjust the speed by operating the control switch: rotate to the R+ position to accelerate, rotate to the S- position to decelerate. Each rotation changes the vehicle speed by 2 kilometers per hour, and holding the position will change the speed continuously. S5: When you need to deactivate cruise control, use any of the following methods: turn the control switch to the OFF position, depress the clutch pedal or the brake pedal, and the system will automatically deactivate cruise control, and the indicator light will change from green to yellow. S6: After cruise control is deactivated, if you need to restore the vehicle speed to the set speed before deactivation, turn the control switch to the RESUME position. The central controller will recall the stored set speed and automatically restore the cruise control state. S7: During cruise control, the safety warning module in the central controller monitors the braking system status and vehicle speed fluctuations in real time. When the vehicle speed fluctuation exceeds the preset threshold or an abnormality in the braking system is detected, the system automatically disengages cruise control and illuminates the fault indicator light.