A constant speed cruise control method and system

Abstract

The present application relates to the technical field of constant speed cruise, and particularly relates to a constant speed cruise control method and system, which comprises the following steps: in response to a pulse signal of a constant speed cruise switch, a multifunctional steering wheel sends the pulse signal of the constant speed cruise switch to an engine controller through a CAN bus to control a vehicle to enter a pre-cruise state; when the vehicle is in the pre-cruise state, in a set constant speed cruise speed range, a cruise determination signal is generated in response to a cruise roller trigger signal of the multifunctional steering wheel to control the vehicle to enter a constant speed cruise state; when the vehicle is in the constant speed cruise state, in the set constant speed cruise speed range, a vehicle speed adjustment signal is generated in response to up and down adjustment signals of the cruise roller of the multifunctional steering wheel according to a set vehicle speed adjustment step to adjust the cruise speed. On the basis of canceling the constant speed cruise key wire harness loop of the multifunctional steering wheel, the present application can effectively identify the cruise operation intention of a driver and efficiently and stably realize the constant speed cruise function.

Description

Technical Field

[0001] This invention relates to the field of cruise control technology, and in particular to a cruise control method and system. Background Technology

[0002] Cruise control, as a driver assistance function, offers advantages such as reduced energy consumption and less driver fatigue, and has been widely used in recent years. With the development of electronic technology and the automotive industry, more and more vehicles now employ electronic throttle technology, which makes cruise control easier to implement and more safe and reliable.

[0003] With the popularization and development of cruise control in automobiles, a series of problems in the actual use of cruise control have attracted widespread attention. When vehicles are equipped with a multi-function steering wheel, because the cruise control button wiring harness is removed, the engine controller cannot effectively identify the driver's cruise control intention through the voltage value of the cruise control buttons, occasionally leading to cruise control malfunctions. Summary of the Invention

[0004] The purpose of this invention is to provide a cruise control method and system that achieves cruise control function through a multi-function steering wheel by eliminating the cruise control button wiring harness circuit.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] Firstly, a cruise control method is provided, including:

[0007] The multi-function steering wheel sends the pulse signal of the cruise control switch to the engine controller via the CAN bus, so that the engine controller controls the vehicle to enter the pre-cruise state.

[0008] When the vehicle is in pre-cruise mode, within the set cruise speed range, a cruise confirmation signal is generated in response to the cruise roller trigger signal of the multi-function steering wheel. The multi-function steering wheel sends the cruise confirmation signal to the engine controller via the CAN bus, so that the engine controller controls the vehicle to enter cruise mode.

[0009] When the vehicle is in cruise control mode, within the set cruise speed range, it responds to the up and down adjustment signals of the cruise control wheel on the multi-function steering wheel according to the set speed adjustment step size, generating a speed adjustment signal. The multi-function steering wheel sends the speed adjustment signal to the engine controller via the CAN bus, so that the engine controller adjusts the cruise speed.

[0010] Furthermore, the cruise control speed range is set to 40–150 km / h.

[0011] Furthermore, when the vehicle is in pre-cruise mode, in response to the accelerator pedal signal, the vehicle accelerates until it reaches the first cruise speed. When the accelerator pedal signal disappears, the cruise control wheel button on the multi-function steering wheel is adjusted downwards, and the vehicle enters cruise control mode at the first cruise speed.

[0012] Furthermore, when the vehicle is in cruise control mode, each time the cruise control scroll wheel is moved upwards, the cruise speed increases by 1 km / h compared to the original speed; each time the cruise control scroll wheel is moved downwards, the cruise speed decreases by 1 km / h compared to the original speed.

[0013] Furthermore, when the vehicle is in cruise control mode at the first cruise speed, it accelerates in response to the accelerator pedal signal. After the accelerator pedal signal disappears, the vehicle returns to the first cruise speed.

[0014] Furthermore, when the cruise speed increases to the set maximum cruise speed, if the engine controller receives the cruise control wheel upward adjustment signal or the accelerator pedal signal from the multi-function steering wheel again, it controls the cruise speed to remain unchanged at the maximum cruise speed.

[0015] Furthermore, when the vehicle is in cruise control mode, in response to the pulse signal of the cruise control switch, the brake pedal signal, or the electronic parking brake signal, the engine controller controls the vehicle to exit cruise control mode and enter pre-cruise mode.

[0016] Furthermore, when the vehicle exits cruise control mode and enters pre-cruise mode,

[0017] If the current vehicle speed is within the set cruise control speed range, adjust the cruise control scroll wheel button on the multi-function steering wheel upwards, and the vehicle will automatically accelerate until it returns to the cruise speed before exiting cruise control.

[0018] If the current vehicle speed is lower than the set minimum cruise speed, in response to the accelerator pedal signal, the vehicle accelerates until it reaches the minimum cruise speed. After the accelerator pedal signal disappears, the cruise control wheel button on the multi-function steering wheel is adjusted upwards, and the vehicle automatically accelerates until it returns to the cruise speed before exiting cruise control.

[0019] In response to the cruise control switch signal, exit the pre-cruise state.

[0020] Secondly, a cruise control system is provided, comprising: a multi-function steering wheel, an infotainment audio head unit, a central gateway, and an engine controller connected sequentially via a CAN bus;

[0021] The multi-function steering wheel is equipped with a cruise control switch and a cruise control wheel, which are used to send the pulse signal of the cruise control switch to the engine controller via the CAN bus through the infotainment audio head unit and the central gateway, so that the engine controller controls the vehicle to enter the pre-cruise state.

[0022] When the vehicle is in pre-cruise mode, within the set cruise speed range, the multi-function steering wheel is also used to generate a cruise determination signal by triggering the cruise roller, and send the cruise determination signal to the engine controller via the CAN bus through the infotainment audio head unit and the central gateway, so that the engine controller controls the vehicle to enter cruise mode.

[0023] When the vehicle is in cruise control mode, within the set cruise speed range, the multi-function steering wheel is also used to respond to the cruise control wheel adjustment signal by adjusting the cruise control wheel up and down according to the set speed adjustment step size, generating a speed adjustment signal. The speed adjustment signal is sent to the engine controller via the CAN bus through the infotainment audio head unit and the central gateway, so that the engine controller adjusts the cruise speed.

[0024] Furthermore, the system also includes:

[0025] The instrument cluster module is connected to the engine controller via a CAN bus and is used to display the vehicle's current cruise status using cruise indicator lights;

[0026] When the vehicle is in pre-cruise mode, the cruise indicator light will be green and flashing;

[0027] When the vehicle is in cruise control mode, the cruise indicator light is green and stays on.

[0028] When the vehicle exits pre-cruise mode, the cruise indicator light turns off.

[0029] The technical effects and advantages of this invention are as follows:

[0030] (1) The multi-function steering wheel is equipped with only a cruise control switch and a cruise control wheel. The cruise control function is activated by sending the pulse signal of the cruise control switch to the engine controller, which simplifies the appearance of the steering wheel and improves convenience.

[0031] (2) The cruise control wheel on the multi-function steering wheel can be used to adjust the cruise status and cruise speed. After the vehicle exits the cruise control state, the cruise control wheel can also be used to realize other functions, which is practical and convenient.

[0032] (3) By using the CAN bus to transmit the pulse signal of the cruise control switch, the cruise control determination signal, and the vehicle speed adjustment signal, the cruise control button wiring harness circuit is eliminated, effectively identifying the driver's cruise operation intention and realizing the cruise control function efficiently and stably.

[0033] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 A flowchart of the cruise control method provided in the first embodiment of the present invention;

[0036] Figure 2 This is a schematic diagram of the cruise control system provided in the second embodiment of the present invention;

[0037] Figure 3 This is a partial schematic diagram of the multi-functional steering wheel in the second embodiment of the present invention;

[0038] Figure 4 This is a schematic diagram illustrating the working principle of the cruise control system in the second embodiment of the present invention;

[0039] Cruise control switch 1; Cruise control wheel 2. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] To address the shortcomings of existing technologies, this invention discloses a cruise control method, such as... Figure 1 As shown, the cruise control method includes:

[0042] The multi-function steering wheel sends the pulse signal of the cruise control switch to the engine controller via the CAN bus, so that the engine controller controls the vehicle to enter the pre-cruise state.

[0043] When the vehicle is in pre-cruise mode, within the set cruise speed range, a cruise confirmation signal is generated in response to the cruise roller trigger signal of the multi-function steering wheel. The multi-function steering wheel sends the cruise confirmation signal to the engine controller via the CAN bus, so that the engine controller controls the vehicle to enter cruise mode.

[0044] When the vehicle is in cruise control mode, within the set cruise speed range, it responds to the up and down adjustment signals of the cruise control wheel on the multi-function steering wheel according to the set speed adjustment step size, generating a speed adjustment signal. The multi-function steering wheel sends the speed adjustment signal to the engine controller via the CAN bus, so that the engine controller adjusts the cruise speed.

[0045] In this embodiment of the invention, the vehicle is equipped with a multi-function steering wheel, on which only a cruise control switch is installed. Other cruise control function buttons and cruise control button wiring harnesses are eliminated. The pulse signal of the cruise control switch is sent to the engine controller via the multi-function steering wheel to activate the cruise control function, simplifying the steering wheel appearance and improving convenience. The cruise control wheel is used to adjust the cruise status and cruise speed. After the vehicle exits cruise control mode, the cruise control wheel can also be used to perform other functions, such as volume adjustment and air conditioning temperature adjustment, making it highly practical and convenient. The pulse signal of the cruise control switch, the cruise control confirmation signal, and the speed adjustment signal are transmitted via the CAN bus. By eliminating the cruise control button wiring harness, the driver's cruise operation intention is effectively identified, and the cruise control function is implemented efficiently and stably.

[0046] According to a preferred embodiment of the present invention, the cruise speed range is set to 40-150 km / h.

[0047] After the vehicle starts normally, press the cruise control switch on the multi-function steering wheel. The engine controller will control the vehicle to enter pre-cruise mode. If the current speed is between 40 and 150 km / h, adjust the cruise control roller downwards, and the vehicle will enter cruise control mode according to the current speed.

[0048] When the vehicle is in pre-cruise mode, press the accelerator pedal. In response to the accelerator pedal signal, the vehicle accelerates until it reaches the first cruise speed. Then release the accelerator pedal. When the accelerator pedal signal disappears, adjust the cruise control wheel button on the multi-function steering wheel downwards. The vehicle will then enter cruise control mode at the first cruise speed.

[0049] When the vehicle is in cruise control mode, within the set cruise speed range, the cruise control wheel on the multi-function steering wheel responds to the up and down adjustment signals according to the set speed adjustment step size, generating a speed adjustment signal. That is, each time the cruise control wheel is adjusted upward, the cruise speed increases by 1 km / h compared to the original speed, but does not exceed the set maximum cruise speed; each time the cruise control wheel is adjusted downward, the cruise speed decreases by 1 km / h compared to the original speed, but does not fall below the set minimum cruise speed.

[0050] When the vehicle is in cruise control mode at the first cruise speed, it accelerates in response to the accelerator pedal signal. After the accelerator pedal signal disappears, the vehicle returns to the first cruise speed.

[0051] In cruise control mode, when the cruise speed increases to the set maximum cruise speed, if the cruise control wheel button is adjusted upwards on the multi-function steering wheel or the accelerator pedal is pressed, the engine controller will receive the cruise control wheel adjustment signal or the accelerator pedal signal again, and then control the cruise speed to remain unchanged at the set maximum cruise speed to ensure driving safety.

[0052] When the vehicle is in cruise control mode, if the cruise control switch is pressed, the brake pedal is pressed, or the electronic parking brake button is released, in response to the pulse signal from the cruise control switch, the brake pedal signal, or the electronic parking brake signal, the engine controller controls the vehicle to exit cruise control mode and enter pre-cruise mode.

[0053] According to a preferred embodiment of the present invention, when the vehicle exits cruise control mode and enters pre-cruise mode:

[0054] If the current vehicle speed is within the set cruise control speed range, adjust the cruise control scroll wheel button on the multi-function steering wheel upwards, and the vehicle will automatically accelerate until it returns to the cruise speed before exiting cruise control.

[0055] If the current vehicle speed is lower than the set minimum cruise speed, in response to the accelerator pedal signal, the vehicle accelerates until it reaches the minimum cruise speed. After the accelerator pedal signal disappears, the cruise control wheel button on the multi-function steering wheel is adjusted upwards, and the vehicle automatically accelerates until it returns to the cruise speed before exiting cruise control.

[0056] In pre-cruise mode, if the cruise control switch is pressed, the vehicle will exit pre-cruise mode in response to the pulse signal of the cruise control switch.

[0057] According to the cruise control method provided in the embodiments of the present invention, when the vehicle is in cruise mode, the cruise control wheel of the multi-function steering wheel is used to adjust the cruise mode and cruise speed. After exiting the cruise mode, the cruise control wheel can also be used to adjust the volume, air conditioning temperature and other functions, which is highly practical and convenient.

[0058] The second embodiment of the present invention provides a cruise control system, such as... Figures 2 to 4 As shown, the system includes: a multi-function steering wheel MFS, an infotainment audio head unit IHU, a central gateway CGW, and an engine controller EMS, which are connected in sequence via a CAN bus.

[0059] The multi-function steering wheel MFS is equipped with a cruise control switch 1 and a cruise control wheel 2. The multi-function steering wheel MFS is used to send the pulse signal of the cruise control switch 1 to the engine controller EMS via the CAN bus through the infotainment audio head unit IHU and the central gateway CGW, so that the engine controller EMS controls the vehicle to enter the pre-cruise state.

[0060] When the vehicle is in pre-cruise mode, within the set cruise speed range, the multi-function steering wheel MFS is also used to generate a cruise determination signal by triggering the cruise roller 2. The cruise determination signal is then sent to the engine controller EMS via the CAN bus through the infotainment audio head unit IHU and the central gateway CGW, so that the engine controller EMS controls the vehicle to enter cruise control mode.

[0061] When the vehicle is in cruise control mode, within the set cruise speed range, the multi-function steering wheel is also used to respond to the cruise roller adjustment signal by adjusting the cruise roller 2 up and down according to the set speed adjustment step size, generating a speed adjustment signal. The speed adjustment signal is sent to the engine controller EMS via the CAN bus through the infotainment audio head unit IHU and the central gateway CGW, so that the engine controller EMS adjusts the cruise speed.

[0062] like Figure 3 and 4 As shown, when the vehicle is driving normally, a cruise control request signal is sent through the multi-function steering wheel MFS. This cruise control request signal includes a pulse signal generated by the cruise control switch 1 and a vehicle speed adjustment signal (speed increase signal or speed decrease signal) generated by the cruise control roller 2. The signal is sent to the engine controller EMS via the infotainment audio head unit IHU and the central gateway CGW. The engine controller EMS controls the vehicle to enter or exit cruise control mode, and controls the throttle opening by recognizing the vehicle speed adjustment signal, thereby controlling the actual vehicle speed in response to the target vehicle speed.

[0063] Furthermore, the system also includes an instrument cluster module (ICM) connected to the engine controller (EMS) via a CAN bus. The engine controller (EMS) sends the vehicle's cruise status, including pre-cruise status, cruise control status, or cruise exit status, to the instrument cluster module (ICM).

[0064] The integrated instrument cluster (ICM) module is used to display the vehicle's current cruise status using cruise indicator lights.

[0065] When the vehicle is in pre-cruise mode, the cruise indicator light will be green and flashing;

[0066] When the vehicle is in cruise control mode, the cruise indicator light is green and stays on.

[0067] When the vehicle exits pre-cruise mode, the cruise indicator light on the instrument panel turns off.

[0068] In this embodiment of the invention, when the vehicle is in pre-cruise mode, if the current vehicle speed is within the set cruise speed range, such as 40 to 150 km / h, the cruise control roller is adjusted downwards and the vehicle enters cruise control mode.

[0069] When the vehicle is in pre-cruise mode, in response to the accelerator pedal signal, the vehicle accelerates until it reaches the first cruise speed. When the accelerator pedal is released and the accelerator pedal signal disappears, the cruise control wheel button on the multi-function steering wheel is adjusted downwards, and the vehicle enters cruise control mode at the first cruise speed.

[0070] When the vehicle is in cruise control mode, within the set cruise speed range, the cruise control wheel on the multi-function steering wheel responds to the up and down adjustment signals according to the set speed adjustment step size, generating a speed adjustment signal. That is, each time the cruise control wheel is adjusted upward, the cruise speed increases by 1 km / h compared to the original speed, but does not exceed the set maximum cruise speed; each time the cruise control wheel is adjusted downward, the cruise speed decreases by 1 km / h compared to the original speed, but does not fall below the set minimum cruise speed.

[0071] When the vehicle is in cruise control mode at the first cruise speed, it accelerates in response to the accelerator pedal signal. After the accelerator pedal signal disappears, the vehicle returns to the first cruise speed.

[0072] When the cruise speed increases to the set maximum cruise speed, if the cruise control wheel button is adjusted upwards on the multi-function steering wheel or the accelerator pedal is pressed, the engine control system (EMS) will receive the cruise control wheel adjustment signal or the accelerator pedal signal again, and then control the cruise speed to remain unchanged at the set maximum cruise speed to ensure driving safety.

[0073] When the vehicle is in cruise control mode, pressing the cruise control switch, pressing the brake pedal, or releasing the electronic parking brake button (EPB) will cause the engine control system (EMS) to control the vehicle to exit cruise control mode and enter pre-cruise mode. The cruise indicator light will then turn green and flash.

[0074] According to a preferred embodiment of the present invention, when the vehicle exits cruise control mode and enters pre-cruise mode:

[0075] If the current vehicle speed is within the set cruise control speed range, adjust the cruise control scroll wheel button on the multi-function steering wheel upwards, and the vehicle will automatically accelerate until it returns to the cruise speed before exiting cruise control.

[0076] If the current vehicle speed is lower than the set minimum cruise speed, in response to the accelerator pedal signal, the vehicle accelerates until it reaches the minimum cruise speed. After the accelerator pedal signal disappears, the cruise control wheel button on the multi-function steering wheel is adjusted upwards, and the vehicle automatically accelerates until it returns to the cruise speed before exiting cruise control.

[0077] Press the cruise control switch to exit cruise control mode and the cruise control indicator light will turn off.

[0078] Regarding the system in the above embodiments, the specific manner in which each unit module performs operations has been described in detail in the embodiments related to the method, and will not be elaborated here.

[0079] Based on the same inventive concept, embodiments of the present invention also provide an electronic device, including: a memory and a processor, wherein the processor is used to read and execute a computer program stored in the memory to implement the aforementioned cruise control method.

[0080] Based on the same inventive concept, embodiments of the present invention also provide a computer storage medium storing computer-executable instructions, which, when executed, implement the aforementioned cruise control method.

[0081] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple modules or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or modules may be electrical, mechanical, or other forms.

[0082] The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical modules; that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Furthermore, the functional modules in the various embodiments of this invention can be integrated into one processing module, or each module can exist physically separately, or two or more modules can be integrated into one module. The integrated modules described above can be implemented in hardware or as software functional modules.

[0083] If the integrated module is implemented as a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0084] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, because according to the present invention, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0085] In the above embodiments, the descriptions of each embodiment have their own emphasis. Parts not described in detail in a particular embodiment can be found in the relevant descriptions of other embodiments. Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cruise control method, characterized in that, The method is applied to a multi-function steering wheel, which is equipped with a cruise control switch and a cruise control wheel. The method includes: The multi-function steering wheel sends the pulse signal of the cruise control switch to the engine controller via the CAN bus, so that the engine controller controls the vehicle to enter the pre-cruise state. When the vehicle is in pre-cruise mode, within the set cruise speed range, a cruise confirmation signal is generated in response to the cruise roller trigger signal of the multi-function steering wheel. The multi-function steering wheel sends the cruise confirmation signal to the engine controller via the CAN bus, so that the engine controller controls the vehicle to enter cruise mode. When the vehicle is in cruise control mode, within the set cruise speed range, it responds to the up and down adjustment signals of the cruise control wheel on the multi-function steering wheel according to the set speed adjustment step size, generating a speed adjustment signal. The multi-function steering wheel sends the speed adjustment signal to the engine controller via the CAN bus, so that the engine controller adjusts the cruise speed.

2. The method according to claim 1, characterized in that, The cruise control speed range is set to 40~150km / h.

3. The method according to claim 1, characterized in that, When the vehicle is in pre-cruise mode, in response to the accelerator pedal signal, the vehicle accelerates until it reaches the first cruise speed. When the accelerator pedal signal disappears, the cruise control wheel button on the multi-function steering wheel is adjusted downwards, and the vehicle enters cruise control mode at the first cruise speed.

4. The method according to claim 1, characterized in that, When the vehicle is in cruise control mode, each time the cruise control scroll wheel is moved up, the cruise speed increases by 1 km / h compared to the original speed; each time the cruise control scroll wheel is moved down, the cruise speed decreases by 1 km / h compared to the original speed.

5. The method according to claim 3, characterized in that, When the vehicle is in cruise control mode at the first cruise speed, it accelerates in response to the accelerator pedal signal. After the accelerator pedal signal disappears, the vehicle returns to the first cruise speed.

6. The method according to claim 1, characterized in that, When the cruise speed increases to the set maximum cruise speed, if the engine controller receives the cruise control wheel upward adjustment signal or the accelerator pedal signal from the multi-function steering wheel again, it will control the cruise speed to remain unchanged at the maximum cruise speed.

7. The method according to claim 1, characterized in that, When the vehicle is in cruise control mode, in response to the pulse signal from the cruise control switch, the brake pedal signal, or the electronic parking brake signal, the engine controller controls the vehicle to exit cruise control mode and enter pre-cruise mode.

8. The method according to claim 7, characterized in that, When the vehicle exits cruise control mode and enters pre-cruise mode... If the current vehicle speed is within the set cruise control speed range, adjust the cruise control scroll wheel button on the multi-function steering wheel upwards, and the vehicle will automatically accelerate until it returns to the cruise speed before exiting cruise control. If the current vehicle speed is lower than the set minimum cruise speed, in response to the accelerator pedal signal, the vehicle accelerates until it reaches the minimum cruise speed. After the accelerator pedal signal disappears, the cruise control wheel button on the multi-function steering wheel is adjusted upwards, and the vehicle automatically accelerates until it returns to the cruise speed before exiting cruise control. In response to the cruise control switch signal, exit the pre-cruise state.

9. A cruise control system, characterized in that, The system includes: a multi-function steering wheel, an infotainment audio head unit, a central gateway, and an engine controller, which are connected sequentially via a CAN bus. The multi-function steering wheel is equipped with a cruise control switch and a cruise control wheel, which are used to send the pulse signal of the cruise control switch to the engine controller via the CAN bus through the infotainment audio head unit and the central gateway, so that the engine controller controls the vehicle to enter the pre-cruise state. When the vehicle is in pre-cruise mode, within the set cruise speed range, the multi-function steering wheel is also used to generate a cruise determination signal by triggering the cruise roller, and send the cruise determination signal to the engine controller via the CAN bus through the infotainment audio head unit and the central gateway, so that the engine controller controls the vehicle to enter cruise mode. When the vehicle is in cruise control mode, within the set cruise speed range, the multi-function steering wheel is also used to respond to the cruise control wheel adjustment signal by adjusting the cruise control wheel up and down according to the set speed adjustment step size, generating a speed adjustment signal. The speed adjustment signal is sent to the engine controller via the CAN bus through the infotainment audio head unit and the central gateway, so that the engine controller adjusts the cruise speed.

10. The system according to claim 9, characterized in that, The system also includes: The instrument cluster module is connected to the engine controller via a CAN bus and is used to display the vehicle's current cruise status using cruise indicator lights; When the vehicle is in pre-cruise mode, the cruise indicator light will be green and flashing; When the vehicle is in cruise control mode, the cruise indicator light is green and stays on. When the vehicle exits pre-cruise mode, the cruise indicator light turns off.

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