Intelligent shifting piece gear shifting control system and control method thereof

Abstract

The invention discloses an intelligent shifting piece gear shifting control system and a control method thereof, and belongs to the technical field of vehicle gear shifting control. The starting and quitting module is used for achieving switching and quitting of an intelligent shifting piece gear shifting mode and a traditional shifting piece up-down gear mode; the traditional shifting piece up-and-down gear module is used for completing up-and-down gear operation by matching a shifting piece with a gear shifting line under the condition that a driver does not leave a steering wheel; and the intelligent shifting piece gear shifting module is used for simulating the driving intention of a driver to adjust gears according to the vehicle state parameters. The matching degree of gear shifting and power requirements is improved, power continuity under complex working conditions is improved, diversified power and control requirements are met, the function extension cost is reduced, the mode switching mode is optimized, intelligent adjustment is achieved in combination with driving intention recognition, and operation convenience is improved.

Description

Technical Field

[0001] The present invention relates to an intelligent paddle shift control system and a control method thereof, belonging to the technical field of vehicle shift control. Background Art

[0002] Existing paddle shift systems use paddles behind the steering wheel to achieve basic upshift and downshift functions, but they have the following limitations: 1. Lack of dynamic environment perception ability: The traditional system only serves as a mechanical command transmission device and is unable to perceive the driving environment in real time through parameters such as vehicle speed, throttle opening, and engine speed. This causes gear switching to be disconnected from power demand, and can easily cause power interruption under complex working conditions such as continuous curves and slippery roads.

[0003] 2. Insufficient scenario adaptability: Using fixed shift logic, it lacks the ability to adapt to multiple scenarios. Track conditions: Delayed upshift response and poor power delivery consistency; Mountain conditions: Continuous downshifting can easily trigger the transmission overheat protection; High-altitude operating conditions: Changes in air intake lead to inaccurate gear position judgment.

[0004] 3. System coupling is too high: The control module is deeply bound to a specific transmission type. For example, the paddle shift system of an AT vehicle model is not compatible with the CVT belt control logic. The DCT platform program transplantation requires the reconstruction of the hardware architecture, and the cost of module function expansion is high.

[0005] 4. Rigid interaction mechanism: Mode switching relies on a fixed operation sequence, lacks driver intention recognition function, and cannot automatically adjust the gear shifting strategy in dynamic scenarios such as starting and overtaking.

[0006] The above defects make it difficult for existing paddle shift systems to meet the demand for personalized control in the era of intelligent driving. Summary of the Invention

[0007] In order to solve the problems existing in the background technology, the present invention provides an intelligent paddle shift control system and a control method thereof.

[0008] To achieve the above purpose, the present invention adopts the following technical solutions: an intelligent paddle shift control system, comprising The start and exit module is used to switch between the smart paddle shift mode and the traditional paddle shift mode; Traditional paddle shift module, which enables the driver to shift up and down by using paddles and shift cables without leaving the steering wheel; The intelligent paddle shift module is used to simulate the driver's driving intention and adjust the gear according to vehicle status parameters. It obtains vehicle speed, gear position, accelerator pedal travel and throttle change rate parameters in real time through the TCU, and dynamically adjusts the shift strategy, including racing start mode, power-assisted mode, high altitude mode and mountain mode.

[0009] Furthermore, in the start and exit module, the driver chooses to enter the smart paddle shift module or the traditional paddle shift module by short pressing the tip+ key and the tip- key a certain number of times, and exits the smart paddle shift mode by long pressing the tip+ and tip- keys.

[0010] A method for controlling a racing start mode of an intelligent paddle shift control system of the present invention comprises the following steps: S1: When the vehicle is in low speed and low gear, the driver uses the paddle button to select the smart paddle shift mode and shifts the gear to low gear using the paddle; S2: The transmission control computer monitors the vehicle status in real time, collecting information about the accelerator pedal travel depth and current vehicle speed; S3: Branch judgment logic Case 1: Meeting the accelerated starting conditions When the accelerator pedal travel is not less than the preset percentage threshold and the vehicle speed is not less than the preset speed threshold: S301: Execute rapid acceleration and starting: Control engine torque output to 85%-95% of maximum torque, increase transmission clutch oil pressure at a rate of 5-10 bar / ms, and maintain a shift interval of ≤0.3 seconds during 1st-3rd gear upshifts. This improves the vehicle's 0-60 km / h acceleration time by 15%-25% compared to conventional mode, and achieves a peak longitudinal acceleration of 0.5-0.7 g for ≥1 second. Automatically increase starting torque by 10%-15% when a slope of 3% or greater is detected. S302: After acceleration is completed, the system automatically exits the smart paddle shift mode; S303: The vehicle switches to the automatic mode of the automatic transmission; Case 2: Entering the racing mode When the accelerator pedal travel is less than the preset percentage threshold and the vehicle speed is less than the preset speed threshold: S301: The transmission control computer determines that the vehicle is in racing mode; S302: Maintain the smart paddle shift mode; S303: Maintain the current low gear and wait for the driver to further operate to trigger acceleration.

[0011] A method for controlling a power-assist mode of an intelligent paddle shift control system according to the present invention comprises the following steps: S1: When the vehicle is driving on a highway and needs to overtake a vehicle blocking the road ahead, the driver activates the power assist mode; S2: TCU collects the vehicle's current gear position, speed, throttle depth, and throttle change speed in real time; S3: Fast downshifts and enhanced torque S301: The TCU selects the lowest feasible gear based on the engine's real-time output torque, the transmission gear ratio, and the gear selected by the driver's manual paddle shifters. S302: The TCU synchronously controls the torque converter to unlock, amplifying torque through hydraulic coupling to improve instantaneous acceleration; S303: Maintain the selected low gear to ensure continuous high power output during overtaking; S4: Delayed upshift logic after overtaking S401: When the driver releases the throttle, the TCU calculates the delay time based on the integrated parameters: S402: Maintain low gear during the delay to reserve power response space for a second overtaking; S5: Mode exit and gear recovery S501: Complete exit condition: The TCU confirms that the driver has no intention to overtake again and automatically exits the smart paddle shift mode; S502: Gear recovery objective: quickly shift to a higher gear to increase vehicle speed, improve transmission efficiency, and facilitate returning to autonomous driving mode; S503: During the upshift process, a signal is sent to the instrument to display the current gear status.

[0012] A method for controlling a high-altitude mode of an intelligent paddle shift control system according to the present invention comprises the following steps: S1: When the transmission detects through the altitude sensor that the vehicle is in a high altitude area above the set threshold, the high altitude mode is triggered; S2: The system adjusts the shift line parameters to increase the gear switching space, expand the driver's manual operation authority, provide a higher degree of maneuverability, and allow the driver to flexibly adjust the gear according to power requirements; S3: When the vehicle enters Race Start mode or Power Assist mode, the system calculates an altitude correction factor based on the current altitude and extends the paddle shift time accordingly. S4: When the transmission detects that the vehicle has left the high-altitude area and has been in this area for a preset time, it automatically exits the plateau-specific shift line mode and resumes normal shift logic.

[0013] A method for controlling a mountain mode of an intelligent paddle shift control system according to the present invention comprises the following steps: S1: The driver activates the smart paddle shift mode, and the TCU detects through sensors that the vehicle is in a mountainous environment, triggering the mountain mode. S2: Uphill slope control S201: When the TCU detects an uphill slope, it increases the paddle shift position in proportion to the slope. S202: synchronously sending a gear shift signal to the instrument panel to prompt the driver of the current recommended gear; S203: Increase the gear shift interval based on the real-time throttle opening and engine speed; S3: Cornering Control S301: When the TCU detects that the vehicle is turning, it automatically maintains the current gear to prevent unnecessary gear shifting due to speed fluctuations during the turn; S302: Displaying a gear hold prompt on the instrument panel to inform the driver of the current status; S4: Downhill slope control S401: Automatically adjust to a low gear based on slope and throttle position, using the engine to reverse for auxiliary braking and reduce vehicle speed; S402: Real-time monitoring of the throttle opening. When the throttle opening reaches a set threshold, the low gear lock is released, and the gear adjustment authority is returned to the driver, allowing manual upshifting and acceleration. S403: Maintaining the vehicle in a low gear position while in reverse at low speed ensures downhill driving stability and safety. S5: When the TCU detects that the slope is less than the set value and lasts for a certain period of time, it determines that the vehicle has left the mountain road environment, automatically exits the mountain mode, and restores the normal smart paddle shift logic.

[0014] Compared with the prior art, the present invention has the following beneficial effects: To address the problem of lack of dynamic environmental perception capability, the present invention uses the TCU to obtain vehicle status parameters in real time and dynamically adjust the shifting strategy, thereby improving the matching degree between shifting and power requirements and improving power continuity under complex working conditions. To address the problem of insufficient scene adaptability, multiple modes such as racing start, power assist, high altitude and mountain driving are set to adapt to different driving scenarios and meet diverse power and control requirements. To address the problem of high system coupling, each module is independent and can be transplanted to a variety of vehicle models and transmission control systems, reducing the cost of functional expansion. To address the problem of rigid interaction mechanism, the mode switching method is optimized, and intelligent adjustment is achieved by combining driving intention recognition, thereby improving operational convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural block diagram of the intelligent paddle shift control system of the present invention; Figure 2 It is a flow chart of the racing start mode; Figure 3 It is a flowchart of the power assist mode; Figure 4 This is a flowchart of the high altitude mode; Figure 5 This is a flowchart of the mountain mode. DETAILED DESCRIPTION

[0016] The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0017] An intelligent paddle shift control system, comprising The start and exit module is used to switch between the smart paddle shift mode and the traditional paddle shift mode; Traditional paddle shift module, which enables the driver to shift up and down by using paddles and shift cables without leaving the steering wheel; The intelligent paddle shift module is used to simulate the driver's driving intention and adjust the gear according to vehicle status parameters. It obtains vehicle speed, gear position, accelerator pedal travel and throttle change rate parameters in real time through the TCU, and dynamically adjusts the shift strategy, including racing start mode, power-assisted mode, high altitude mode and mountain mode.

[0018] Furthermore, in order to allow the driver to complete the gear shifting operation without leaving the steering wheel, thereby improving the convenience and efficiency of driving, in the start and exit module, the driver chooses to enter the smart paddle shift module (for example, 2 times) or the traditional paddle shift module (for example, 3 times) by short pressing the tip+ key and the tip- key a certain number of times, and exits the smart paddle shift mode by long pressing the tip+ key and the tip- key (for example, >2s). The long pressing time of the tip+ key and the tip- key is customized through calibration.

[0019] A method for controlling a racing start mode of an intelligent paddle shift control system of the present invention comprises the following steps: S1: When the vehicle is in a low-speed and low-gear state (speed < 20 km / h and gear 1-3), such as starting, waiting at a traffic light, or following a vehicle, to improve starting power, the driver selects the smart paddle shift mode using the paddle button and shifts the gear to a low gear using the paddle; S2: The transmission control computer monitors the vehicle status in real time, collecting information about the accelerator pedal travel depth and current vehicle speed; S3: Branch judgment logic Case 1: Meeting the accelerated starting conditions When the accelerator pedal travel is not less than the preset percentage threshold (75%-90%, preferably 80%) and the vehicle speed is not less than the preset speed threshold (dynamically adjusted according to the current gear, 50-70 km / h in gears 1-3, preferably 60 km / h): S301: Execute rapid acceleration and starting: Control engine torque output to 85%-95% of maximum torque, increase transmission clutch oil pressure at a rate of 5-10 bar / ms, and maintain a shift interval of ≤0.3 seconds during 1st-3rd gear upshifts. This improves the vehicle's 0-60 km / h acceleration time by 15%-25% compared to conventional mode, and achieves a peak longitudinal acceleration of 0.5-0.7 g for ≥1 second. Automatically increase starting torque by 10%-15% when a slope of 3% or greater is detected. S302: After acceleration is completed, the system automatically exits the smart paddle shift mode; S303: The vehicle switches to the automatic mode of the automatic transmission; Case 2: Entering the racing mode When the accelerator pedal travel is less than the preset percentage threshold and the vehicle speed is less than the preset speed threshold: S301: The transmission control computer determines that the vehicle is in racing mode; S302: Maintain the smart paddle shift mode; S303: Maintain the current low gear and wait for the driver to further operate (such as pressing the accelerator deeply) to trigger acceleration.

[0020] A method for controlling a power-assist mode of an intelligent paddle shift control system according to the present invention comprises the following steps: S1: When the vehicle is traveling at high speed (speed ≥ 80 km / h) and needs to overtake a vehicle blocking the road ahead, the driver activates the power assist mode (overtaking mode); S2: The TCU collects the vehicle's current gear position, speed, throttle depth, and throttle change rate in real time (if the throttle speed is ≥50% / second, it is determined to be a sudden acceleration attempt to overtake); S3: Fast downshifts and enhanced torque S301: The TCU selects the lowest feasible gear (provided the engine speed does not exceed the redline zone) based on the engine's real-time output torque (calculated based on engine speed and throttle opening), the transmission gear ratio, and the gear selected by the driver's manual paddle shifters (if any). For example: the current gear is 6th, and the TCU calculates that 4th gear can match the torque requirement and the speed is safe, then it automatically downgrades to 4th gear; if the driver manually shifts to 3rd gear and meets safety conditions, then 3rd gear is executed.

[0021] S302: The TCU synchronously controls the torque converter to unlock, amplifying torque through hydraulic coupling (amplification factor 1.5-2.0) to improve instantaneous acceleration; S303: Maintain the selected low gear to ensure continuous high power output during overtaking; S4: Delayed upshift logic after overtaking S401: When the driver releases the accelerator (throttle opening ≤ 20%, overtaking is considered complete), the TCU calculates the delay time (usually 1 to 3 seconds) based on the following parameters: Current throttle opening (the smaller the opening, the shorter the delay time may be); Throttle change rate (the faster the throttle is released, the shorter the delay time); Engine speed (when the speed is ≤2500rpm, the gear may be shifted early); S402: Maintain low gear during the delay to reserve power response space for a second overtaking; S5: Mode exit and gear recovery S501: Complete exit condition: The TCU confirms that the driver has no intention to overtake again (for example, the delay time ends and the throttle remains at a low opening), and automatically exits the smart paddle shift mode; S502: Gear recovery objective: quickly shift to a higher gear (smaller speed ratio) to increase vehicle speed, improve transmission efficiency, and facilitate return to autonomous driving mode; S503: During the upshift process, a signal is sent to the instrument to display the current gear status.

[0022] A method for controlling a high-altitude mode of an intelligent paddle shift control system according to the present invention comprises the following steps: S1: When the transmission detects that the vehicle is in a high altitude area above the set threshold through the altitude sensor, the high altitude mode is triggered (because at an altitude of ≥ 3000 meters, the air pressure drops significantly, the engine air intake volume decreases by about 20% to 30%, and the power attenuation is significant); S2: The system adjusts the shift line parameters to increase the gear switching space, expand the driver's manual operation authority, provide a higher degree of maneuverability, and allow the driver to flexibly adjust the gear according to power requirements; In conventional mode, the speed difference between adjacent gear shift points is 200-300 rpm (e.g., 2500 rpm for 2nd gear and 2800 rpm for 3rd gear); In high-altitude mode, the speed difference of the shift points is expanded to 500-800rpm (such as 2200rpm for 2nd gear and 2900rpm for 3rd gear), which makes the gear switching space larger and less dense, reducing the interference of frequent gear shifting on power.

[0023] The range of manual gear shifting allowed for the driver has been expanded to ±2 gears (±1 gear in normal mode). For example, when the system recommends 3rd gear, the driver can manually shift down to 1st gear or shift up to 5th gear (subject to meeting the speed safety limit). At the same time, the gear shift response delay has been extended from the normal 0.5 seconds to 1.5~2 seconds, giving the driver ample buffer time for operation.

[0024] S3: When the vehicle enters Race Start or Power Assist mode, the system calculates an altitude correction factor based on the current altitude (the higher the altitude, the larger the correction factor). This factor is then used to extend the paddle shift time, maintaining lower gears longer to compensate for the power loss caused by the high altitude and improve actual power output. Altitude correction factor calculation: For every 1000m increase in altitude, the correction factor increases by 0.2-0.3 (the base factor is 1.0). For example: at 3000m, the correction factor is 1.2; at 4000m, the correction factor is 1.4; at 5000m, the correction factor is 1.6.

[0025] In normal mode, the low gear holding time in racing start / boost mode is 3 to 5 seconds. In high altitude mode, the holding time = normal time × correction factor (e.g. 3.6 to 6 seconds at 3000 meters, 4.2 to 7 seconds at 4000 meters).

[0026] S4: When the transmission detects that the vehicle has left the high-altitude area and has been in this area for a preset time, it automatically exits the plateau-specific shift line mode and resumes normal shift logic.

[0027] A method for controlling a mountain mode of an intelligent paddle shift control system according to the present invention comprises the following steps: S1: The driver activates the smart paddle shift mode, and the TCU detects through sensors that the vehicle is in a mountainous road environment (including uphill, downhill, and turning conditions), triggering the mountain mode. S2: Uphill slope control S201: When the TCU detects an uphill slope, it increases the paddle shift gear in proportion to the slope (e.g., the steeper the slope, the lower the recommended gear to enhance torque output); S202: synchronously sending a gear shift signal to the instrument panel to prompt the driver of the current recommended gear; S203: Based on the real-time throttle opening and engine speed, the gear shift interval is increased (50% to 100% longer than the normal mode), avoiding power interruptions caused by frequent gear shifts and ensuring continuous power when going uphill; S3: Cornering Control S301: When the TCU detects a vehicle turn (determined by the steering wheel angle sensor, wheel speed difference, etc.), it automatically maintains the current gear to prevent unnecessary gear shifting due to speed fluctuations during the turn. S302: Displaying a gear hold prompt on the instrument panel to inform the driver of the current status; S4: Downhill slope control S401: Automatically adjust to a low gear based on slope and throttle position, using the engine to reverse for auxiliary braking and reduce vehicle speed; S402: Real-time monitoring of the throttle opening. When the throttle opening reaches a set threshold, the low gear lock is released, and the gear adjustment authority is returned to the driver, allowing manual upshifting and acceleration. S403: Maintaining the vehicle in a low gear position while in reverse at low speed ensures downhill driving stability and safety. S5: When the TCU detects that the slope is less than the set value and lasts for a certain period of time, it determines that the vehicle has left the mountain road environment, automatically exits the mountain mode, and restores the normal smart paddle shift logic.

[0028] The distance between the shift lines increases in proportion to the slope, extending the paddle shift time. The program then suggests a more appropriate gear based on the slope, giving the driver more room to maneuver within that gear. For example, when driving uphill, the vehicle should be in 3rd gear, but the driver can shift to 2nd or 1st gear as needed. The program will increase the paddle shift time based on the slope, the driver's throttle depth, and the gear position.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0030] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An intelligent paddle shift control system, characterized by: include The start and exit module is used to switch between the smart paddle shift mode and the traditional paddle shift mode; Traditional paddle shift module, which enables the driver to shift up and down by using paddles and shift cables without leaving the steering wheel; The intelligent paddle shift module is used to simulate the driver's driving intention and adjust the gear according to vehicle status parameters. It obtains vehicle speed, gear position, accelerator pedal travel and throttle change rate parameters in real time through the TCU, and dynamically adjusts the shift strategy, including racing start mode, power-assisted mode, high altitude mode and mountain mode.

2. The intelligent paddle shift control system according to claim 1, characterized in that: In the start and exit module, the driver selects to enter the smart paddle shift module or the traditional paddle shift module by short pressing the tip+ key and the tip- key a certain number of times, and exits the smart paddle shift mode by long pressing the tip+ and tip- keys.

3. A method for controlling a racing start mode of an intelligent paddle shift control system according to claim 2, characterized in that: The method comprises the following steps: S1: When the vehicle is in low speed and low gear, the driver uses the paddle button to select the smart paddle shift mode and shifts the gear to low gear using the paddle; S2: The transmission control computer monitors the vehicle status in real time, collecting information about the accelerator pedal travel depth and current vehicle speed; S3: Branch judgment logic Case 1: Meeting the accelerated starting conditions When the accelerator pedal travel is not less than the preset percentage threshold and the vehicle speed is not less than the preset speed threshold: S301: Execute rapid acceleration and starting: Control engine torque output to 85%-95% of maximum torque, increase transmission clutch oil pressure at a rate of 5-10 bar / ms, and maintain a shift interval of ≤0.3 seconds during 1st-3rd gear upshifts. This improves the vehicle's 0-60 km / h acceleration time by 15%-25% compared to conventional mode, and achieves a peak longitudinal acceleration of 0.5-0.7 g for ≥1 second. Automatically increase starting torque by 10%-15% when a slope of 3% or greater is detected. S302: After acceleration is completed, the system automatically exits the smart paddle shift mode; S303: The vehicle switches to the automatic mode of the automatic transmission; Case 2: Entering the racing mode When the accelerator pedal travel is less than the preset percentage threshold and the vehicle speed is less than the preset speed threshold: S301: The transmission control computer determines that the vehicle is in racing mode; S302: Maintain the smart paddle shift mode; S303: Maintain the current low gear and wait for the driver to further operate to trigger acceleration.

4. A method for controlling the power-assist mode of the intelligent paddle shift control system according to claim 2, characterized in that: The method comprises the following steps: S1: When the vehicle is driving on a highway and needs to overtake a vehicle blocking the road ahead, the driver activates the power assist mode; S2: TCU collects the vehicle's current gear position, speed, throttle depth, and throttle change speed in real time; S3: Fast downshifts and enhanced torque S301: The TCU selects the lowest feasible gear based on the engine's real-time output torque, the transmission gear ratio, and the gear selected by the driver's manual paddle shifters. S302: The TCU synchronously controls the torque converter to unlock, amplifying torque through hydraulic coupling to improve instantaneous acceleration; S303: Maintain the selected low gear to ensure continuous high power output during overtaking; S4: Delayed upshift logic after overtaking S401: When the driver releases the throttle, the TCU calculates the delay time based on the integrated parameters: S402: Maintain low gear during the delay to reserve power response space for a second overtaking; S5: Mode exit and gear recovery S501: Complete exit condition: The TCU confirms that the driver has no intention to overtake again and automatically exits the smart paddle shift mode; S502: Gear recovery objective: quickly shift to a higher gear to increase vehicle speed, improve transmission efficiency, and facilitate returning to autonomous driving mode; S503: During the upshift process, a signal is sent to the instrument to display the current gear status.

5. A method for controlling a high altitude mode of an intelligent paddle shift control system according to claim 2, characterized in that: The method comprises the following steps: S1: When the transmission detects through the altitude sensor that the vehicle is in a high altitude area above the set threshold, the high altitude mode is triggered; S2: The system adjusts the shift line parameters to increase the gear switching space, expand the driver's manual operation authority, provide a higher degree of maneuverability, and allow the driver to flexibly adjust the gear according to power requirements; S3: When the vehicle enters Race Start mode or Power Assist mode, the system calculates an altitude correction factor based on the current altitude and extends the paddle shift time accordingly. S4: When the transmission detects that the vehicle has left the high-altitude area and has been in this area for a preset time, it automatically exits the plateau-specific shift line mode and resumes normal shift logic.

6. A method for controlling mountain mode of the intelligent paddle shift control system according to claim 2, characterized in that: The method comprises the following steps: S1: The driver activates the smart paddle shift mode, and the TCU detects through sensors that the vehicle is in a mountainous environment, triggering the mountain mode. S2: Uphill slope control S201: When the TCU detects an uphill slope, it increases the paddle shift position in proportion to the slope. S202: synchronously sending a gear shift signal to the instrument panel to prompt the driver of the current recommended gear; S203: Increase the gear shift interval based on the real-time throttle opening and engine speed; S3: Cornering Control S301: When the TCU detects that the vehicle is turning, it automatically maintains the current gear to prevent unnecessary gear shifting due to speed fluctuations during the turn. S302: Displaying a gear hold prompt on the instrument panel to inform the driver of the current status; S4: Downhill slope control S401: Automatically adjust to a low gear based on the slope and throttle position, using the engine to reverse for auxiliary braking and reduce vehicle speed; S402: Real-time monitoring of the throttle opening. When the throttle opening reaches a set threshold, the low gear lock is released, and the gear adjustment authority is returned to the driver, allowing manual upshifting and acceleration. S403: Maintaining the vehicle in a low gear position while in reverse at low speed ensures downhill driving stability and safety. S5: When the TCU detects that the slope is less than the set value and lasts for a certain period of time, it determines that the vehicle has left the mountain road environment, automatically exits the mountain mode, and restores the normal smart paddle shift logic.

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