A gear control method and system for improving driving mode switching perception

By setting the driving mode level and gear speed range, calculating the gear difference and adjusting the gear, the problem of unclear power perception after driving mode switching is solved, achieving a clear mode switching experience and improved driving satisfaction.

CN116792495BActive Publication Date: 2025-09-12CHONGQING CHANGAN AUTOMOBILE CO LTD
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Patent Information

Application Number
CN202310777232.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-06-28
Publication Date
2025-09-12
Estimated Expiration
2043-06-28

AI Technical Summary

Technical Problem

With existing technologies, after the driving mode is switched, the user's perception of power is not obvious, which affects the driving experience.

Method used

By setting the level and speed range corresponding to each driving mode of the vehicle, calculating the level difference before and after the driving mode is switched, obtaining the corresponding gear difference, and calculating the target gear based on the current gear and the gear difference, it is determined whether the target gear includes the current vehicle speed. If so, switch to the target gear; if not, switch to the minimum jump gear that includes the current vehicle speed.

Benefits of technology

It improves the power perception before and after driving mode switching, increases driving pleasure and satisfaction, and provides a clear and direct mode switching experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a gear control method and system for improving the perception of driving mode switching, the method comprising: setting the level of each driving mode of the vehicle, the speed range corresponding to each gear in each driving mode, and the gear difference corresponding to the level difference before and after the driving mode switching; obtaining the vehicle's current driving mode, gear and speed, and calculating the level difference and gear difference before and after the driving mode switching; calculating the target gear according to the current gear and the gear difference; judging whether the speed range corresponding to the target gear in the target driving mode after switching includes the current speed; if so, switching the current gear to the target gear in the target driving mode; if not, switching the current gear to the minimum jump gear in the target driving mode that includes the current speed, thereby completing the vehicle gear switching control; the present invention can improve the user's perception of the power before and after the driving mode switching, increase driving pleasure, and improve driving satisfaction.
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Description

Technical Field

[0001] The present invention relates to the technical field of automatic transmission control, and more particularly, to a gear control method and system for improving driving mode switching perception. Background Art

[0002] With the development of the automotive industry, more and more cars are equipped with multiple driving modes, such as the stable performance of the conventional mode, the energy-efficient economy mode, and the powerful sport mode. Some electric and hybrid vehicles also feature a quiet and stable pure electric mode. During the driving process, users can switch between different driving modes to experience different driving pleasures, thereby improving driving satisfaction.

[0003] However, some economy models of vehicles currently only meet the requirements of smoothness after the driving mode is switched, and there is no obvious difference in power after the switch compared to before the switch. Users have no obvious perception before and after the driving mode switch, which affects the driving experience.

[0004] like Figure 1 As shown, in the existing automatic shifting process, after the user switches driving modes, the current driving mode and gear are first determined. Next, the system checks whether the target mode's current gear includes the current vehicle speed. If so, the current gear remains unchanged. If not, the target mode's minimum jump gear that includes the current vehicle speed is determined as the target gear, and the shift is then executed to complete the shift. This control method prioritizes smoothness, avoiding gear shifts whenever possible. While this method can reduce the number of gear shifts, it doesn't provide a clear and direct mode switching experience for the user.

[0005] In response to this problem, the prior art discloses a shift control device and method for a vehicle automatic transmission, and describes a control method for switching an automatic transmission shift mode from a conventional mode D to a manual M mode, the main purposes of which are the following three points: 1) providing a shift control device for a vehicle automatic transmission, wherein a shift mode is selected between an automatic shift mode for automatically setting a gear and a manual shift mode for manually setting a gear through manual operation by a vehicle operator, so that a desired gear can be established by reducing the frequency of manual shift operations; 2) providing a shift control device for a vehicle automatic transmission, which allows the desired gear to be established by reducing the frequency of manual shift operations after the shift mode is changed from automatic mode to manual mode; 3) providing a shift control device for a vehicle automatic transmission, which allows the desired gear to be established by reducing the frequency of manual shift operations in manual mode. The frequency of manual shifting operations establishes the required gear; the control method in the existing technology mainly considers objective vehicle parameters such as shift lever position, throttle opening, vehicle speed, acceleration, etc. to control the target gear when switching from D mode to M mode, and the target gear after switching to M mode, but does not consider the power perception when switching between driving modes such as economy, conventional, sport, and track after the driver's subjective intention changes; in addition, regarding the control of the target gear after the driving mode is switched, the current mainstream control idea is to switch the corresponding shift map after the driving mode is switched, and the selected target gear is kept consistent with the current actual gear as much as possible. If it cannot be kept consistent, the adjacent gear is selected as the target gear according to the shift map after switching. Although it takes into account the power perception when switching between driving modes such as economy, conventional, sport, and track after the driver's subjective intention changes, the power after switching is not obvious enough compared to before switching. Summary of the Invention

[0006] One of the purposes of the present invention is to provide a gear control method for improving the perception of driving mode switching, so as to solve the defect of the prior art that the power difference before and after driving mode switching is not obvious; the second purpose is to provide a gear control system for improving the perception of driving mode switching.

[0007] In order to solve the above technical problems, the technical solutions of the present invention are as follows:

[0008] A gear control method for improving driving mode switching perception includes the following steps:

[0009] S1: Set the level of each driving mode of the vehicle, the speed range corresponding to each gear in each driving mode, and the gear difference corresponding to the level difference before and after the driving mode switch;

[0010] S2: Obtain the vehicle's current driving mode, gear, and speed, calculate the level difference between the current driving mode and the target driving mode after switching, and obtain the corresponding gear difference based on the level difference;

[0011] S3: Calculate the target gear according to the current gear and the gear difference;

[0012] S4: determining whether the vehicle speed range corresponding to the target gear position in the target driving mode after switching includes the current vehicle speed;

[0013] If it is included, the current gear is switched to the target gear in the target driving mode; if it is not included, the current gear is switched to the minimum jump gear in the target driving mode that includes the current vehicle speed to complete the vehicle gear switching control.

[0014] Preferably, in step S1, the driving modes of the vehicle include: sports mode, normal mode and economy mode.

[0015] Preferably, in step S1, the levels corresponding to the sports mode, the normal mode and the economic mode are 3, 2 and 1 respectively.

[0016] Preferably, in step S1, each driving mode includes five gears, namely 1st gear, 2nd gear, 3rd gear, 4th gear and 5th gear.

[0017] Preferably, in step S1, the vehicle speed range corresponding to each gear in each driving mode is specifically:

[0018] The speed ranges corresponding to the various gears in the sports mode are as follows:

[0019] 1st gear: 0-40kph; 2nd gear: 20-50kph; 3rd gear: 30-60kph; 4th gear: 40-70kph; 5th gear: 50-80kph;

[0020] The vehicle speed range corresponding to each gear in the normal mode is specifically as follows:

[0021] 1st gear: 0-30 kph; 2nd gear: 10-40 kph; 3rd gear: 20-50 kph; 4th gear: 30-60 kph; 5th gear: 40-80 kph;

[0022] The speed ranges corresponding to the various gears in the economic mode are as follows:

[0023] 1st gear: 0~20kph; 2nd gear: 0~30kph; 3rd gear: 10~40kph; 4th gear: 20~50kph; 5th gear: 30~80kph.

[0024] Preferably, in step S1, the gear position difference corresponding to the level difference before and after the driving mode switching is specifically:

[0025] If the level difference is -2, the gear difference is a; if the level difference is -1, the gear difference is b; if the level difference is 0, the gear difference is 0; if the level difference is 1, the gear difference is c; if the level difference is 2, the gear difference is d;

[0026] Where a, b, c and d are the first, second, third and fourth gear differences respectively, and a, b, c and d are all integers and satisfy -4 <a<b<0<c<d<4。

[0027] Preferably, in step S3, the specific method for calculating the target gear position according to the current gear position and the gear position difference is:

[0028] The corresponding gear difference is obtained according to the calculated level difference. Based on the current gear, the current gear is added to the gear difference to obtain the target gear.

[0029] Preferably, the first gear difference a=-2, the second gear difference b=-1, the third gear difference c=1, and the fourth gear difference d=2.

[0030] The present invention further provides a gear control system for improving driving mode switching perception, which applies the above-mentioned gear control method for improving driving mode switching perception, including:

[0031] Initialization unit: used to set the level of each driving mode of the vehicle, the speed range corresponding to each gear in each driving mode, and the gear difference corresponding to the level difference before and after the driving mode is switched;

[0032] A level difference calculation unit is used to obtain the vehicle's current driving mode, gear position, and speed, calculate the level difference between the current driving mode and the target driving mode after switching, and obtain the corresponding gear position difference based on the level difference;

[0033] Target gear calculation unit: used to calculate the target gear according to the current gear and the gear difference;

[0034] Shift unit: used to determine whether the vehicle speed range corresponding to the target gear position includes the current vehicle speed in the target driving mode after switching;

[0035] If it is included, the current gear is switched to the target gear in the target driving mode; if it is not included, the current gear is switched to the minimum jump gear in the target driving mode that includes the current vehicle speed to complete the vehicle gear switching control.

[0036] The present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program implements the steps of the method described in any one of claims 1 to 8 when executed by a processor.

[0037] Compared with the prior art, the beneficial effects of the technical solution of the present invention are:

[0038] The present invention provides a gear control method and system for improving driving mode switching perception. The method first sets the level of each driving mode of the vehicle, the speed range corresponding to each gear in each driving mode, and the gear difference corresponding to the level difference before and after the driving mode switching; obtains the vehicle's current driving mode, gear, and speed, calculates the level difference between the current driving mode and the target driving mode after switching, and obtains the corresponding gear difference based on the level difference; calculates the target gear based on the current gear and the gear difference; determines whether the speed range corresponding to the target gear in the target driving mode after switching includes the current vehicle speed; if so, switches the current gear to the target gear in the target driving mode; if not, switches the current gear to the minimum jump gear in the target driving mode that includes the current vehicle speed, thereby completing the vehicle gear switching control;

[0039] The present invention calculates the level difference and obtains the target gear before shifting. This control method gives priority to power and can provide users with a clear and direct mode switching experience by automatically shifting gears. It can make obvious distinctions through calibration according to the power characteristics of different models, and improve users' perception of power before and after driving mode switching, increase driving pleasure, and improve driving satisfaction. In addition, for different power perception requirements, the gear difference provided in the present invention can be set and modified as needed. When the mode switching perception requirement is high, the increase and decrease gears can be increased. When the mode switching perception requirement is low, the increase and decrease gears can be reduced. It has high freedom and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 The existing automatic shifting flowchart provided as background technology.

[0041] Figure 2 This is a flow chart of a gear control method for improving driving mode switching perception provided in Example 1.

[0042] Figure 3 This is a logic diagram of a gear control method for improving driving mode switching perception provided in Example 2.

[0043] Figure 4 This is the gear position-vehicle speed correspondence diagram provided in Example 2.

[0044] Figure 5 In the existing control process provided in Example 2, the initial gear jump diagram is a vehicle speed of 35 kph and E3.

[0045] Figure 6 In the existing control process provided in Example 2, the initial gear jump diagram is a vehicle speed of 35 kph and S3.

[0046] Figure 7 The initial gear jump diagram provided for Example 2 is a vehicle speed of 35kph and E3.

[0047] Figure 8 The gear shift diagram provided in Example 2 is initially a vehicle speed of 35 kph and S3.

[0048] Figure 9 The gear shift diagram provided in Example 2 is initially a vehicle speed of 5 kph and S1.

[0049] Figure 10 This is a structural diagram of a gear control system provided in Example 3 for improving the perception of driving mode switching. DETAILED DESCRIPTION

[0050] The accompanying drawings are for illustrative purposes only and are not to be construed as limiting this patent;

[0051] In order to better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product size;

[0052] It is understandable to those skilled in the art that some well-known structures and descriptions thereof may be omitted in the drawings.

[0053] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0054] Example 1

[0055] like Figure 2 As shown, this embodiment provides a gear control method for improving driving mode switching perception, comprising the following steps:

[0056] S1: Set the level of each driving mode of the vehicle, the speed range corresponding to each gear in each driving mode, and the gear difference corresponding to the level difference before and after the driving mode switch;

[0057] S2: Obtain the vehicle's current driving mode, gear, and speed, calculate the level difference between the current driving mode and the target driving mode after switching, and obtain the corresponding gear difference based on the level difference;

[0058] S3: Calculate the target gear according to the current gear and the gear difference;

[0059] S4: determining whether the vehicle speed range corresponding to the target gear position in the target driving mode after switching includes the current vehicle speed;

[0060] If it is included, the current gear is switched to the target gear in the target driving mode; if it is not included, the current gear is switched to the minimum jump gear in the target driving mode that includes the current vehicle speed to complete the vehicle gear switching control.

[0061] In a specific implementation process, the level of each driving mode of the vehicle, the speed range corresponding to each gear in each driving mode, and the gear difference corresponding to the level difference before and after the driving mode is switched are first set; the current driving mode, gear and speed of the vehicle are obtained, the level difference between the current driving mode and the target driving mode after switching is calculated, and the corresponding gear difference is obtained according to the level difference; the target gear is calculated according to the current gear and the gear difference; it is determined whether the speed range corresponding to the target gear in the target driving mode after switching includes the current speed; if so, the current gear is switched to the target gear in the target driving mode; if not, the current gear is switched to the minimum jump gear in the target driving mode that includes the current speed, thereby completing the vehicle gear switching control;

[0062] This method calculates the level difference and obtains the target gear before shifting gears. This control method prioritizes power and can provide users with a clear and direct mode switching experience through automatic up and down gears. It can make clear distinctions through calibration based on the power characteristics of different models, and improve users' perception of power before and after driving mode switching, thereby increasing driving pleasure and improving driving satisfaction.

[0063] Example 2

[0064] like Figure 3 As shown, this embodiment provides a gear control method for improving driving mode switching perception, comprising the following steps:

[0065] S1: Set the level of each driving mode of the vehicle, the speed range corresponding to each gear in each driving mode, and the gear difference corresponding to the level difference before and after the driving mode switch;

[0066] S2: Obtain the vehicle's current driving mode, gear, and speed, calculate the level difference between the current driving mode and the target driving mode after switching, and obtain the corresponding gear difference based on the level difference;

[0067] S3: Calculate the target gear according to the current gear and the gear difference;

[0068] S4: determining whether the vehicle speed range corresponding to the target gear position in the target driving mode after switching includes the current vehicle speed;

[0069] If it is included, the current gear is switched to the target gear in the target driving mode; if it is not included, the current gear is switched to the minimum jump gear in the target driving mode that includes the current vehicle speed, completing the vehicle gear switching control;

[0070] In step S1, the vehicle driving mode includes: sports mode, normal mode and economy mode;

[0071] In step S1, the levels corresponding to the sports mode, normal mode, and economy mode are 3, 2, and 1, respectively;

[0072] In step S1, each driving mode includes five gears, namely 1st gear, 2nd gear, 3rd gear, 4th gear and 5th gear;

[0073] In step S1, the vehicle speed range corresponding to each gear in each driving mode is specifically:

[0074] The speed ranges corresponding to the various gears in the sports mode are as follows:

[0075] 1st gear: 0-40kph; 2nd gear: 20-50kph; 3rd gear: 30-60kph; 4th gear: 40-70kph; 5th gear: 50-80kph;

[0076] The vehicle speed range corresponding to each gear in the normal mode is specifically as follows:

[0077] 1st gear: 0-30 kph; 2nd gear: 10-40 kph; 3rd gear: 20-50 kph; 4th gear: 30-60 kph; 5th gear: 40-80 kph;

[0078] The speed ranges corresponding to the various gears in the economic mode are as follows:

[0079] 1st gear: 0-20kph; 2nd gear: 0-30kph; 3rd gear: 10-40kph; 4th gear: 20-50kph; 5th gear: 30-80kph;

[0080] In step S1, the gear difference corresponding to the level difference before and after the driving mode switch is specifically:

[0081] If the level difference is -2, the gear difference is -2; if the level difference is -1, the gear difference is -1; if the level difference is 0, the gear difference is 0; if the level difference is 1, the gear difference is 1; if the level difference is 2, the gear difference is 2;

[0082] In step S3, the specific method for calculating the target gear position based on the current gear position and the gear position difference is:

[0083] The corresponding gear difference is obtained according to the calculated level difference. Based on the current gear, the current gear is added to the gear difference to obtain the target gear.

[0084] In the specific implementation process, this embodiment assumes that the vehicle throttle, speed, slope and other conditions remain unchanged, and only the shift lever position is switched to change the driving mode. For example, a 5-speed transmission and a speed range of 0 to 80 kph are used for illustration. The gear position-speed correspondence relationship is as follows: Figure 4 As shown;

[0085] Set the control range of E1 (Economy mode 1) to 0-20kph, the control range of E2 (Economy mode 2) to 0-30kph, the control range of E3 (Economy mode 3) to 10-40kph, the control range of E4 (Economy mode 4) to 20-50kph, and the control range of E5 (Economy mode 5) to 30-80kph; Set the control range of D1 (Normal mode 1) to 0-30kph, the control range of D2 (Normal mode 2) to 10-40kph, and the control range of D3 (Normal mode 3) to The control range of S1 (Sports Mode 1) is 0-40 kph, the control range of S2 (Sports Mode 2) is 20-50 kph, the control range of S3 (Sports Mode 3) is 30-60 kph, the control range of S4 (Sports Mode 4) is 40-70 kph, and the control range of S5 (Sports Mode 2) is 50-80 kph.

[0086] In the existing control process, the user switches back and forth between E (Economy), D (Normal), and S (Sports) modes. To pursue smoothness, the principle of less gear shifting is adhered to. Within the vehicle speed range allowed by the current gear of the target mode, no gear shifting is done. Outside the allowed range, gear shifting is done as little as possible. Figure 5 As shown in FIG, when the initial vehicle speed is 35 kph and the gear position is E3 (Economy Mode 3), when the driver switches to D mode (Normal Mode), the gear position is switched to D3. When the driver continues to switch to S mode, the gear position is switched to S3. Figure 6 As shown, when the initial vehicle speed is 35 kph and S3, if the driver switches to D mode, the gear shifts to D3. If the driver continues to switch to E mode, the gear shifts to E3. This control method prioritizes smoothness and minimizes or even eliminates the number of gear shifts after switching modes. This only ensures smoothness but does not provide the user with a clear and direct mode switching experience.

[0087] The method in this embodiment first sets the priority value corresponding to each driving mode of the vehicle, and the speed range corresponding to each gear in each driving mode;

[0088] The priority values ​​for sports mode, normal mode, and economy mode are 3, 2, and 1 respectively;

[0089] Then, the current driving mode, gear position, and speed of the vehicle are obtained, and the difference in priority between the current driving mode and the driving mode after switching is calculated to obtain the level difference;

[0090] Based on the current gear, the target gear is obtained according to the calculated level difference, specifically:

[0091] The corresponding gear difference is obtained according to the calculated level difference. If the level difference is -2, the gear difference is -2; if the level difference is -1, the gear difference is -1; if the level difference is 0, the gear difference is 0; if the level difference is 1, the gear difference is 1; if the level difference is 2, the gear difference is 2. The corresponding relationship is shown in Table 1:

[0092] Table 1 Correspondence between level difference and gear difference

[0093] Level difference -2 -1 0 1 2 Gear difference -2 -1 0 1 2

[0094] Based on the current gear, add the current gear and the gear difference to obtain the target gear;

[0095] Finally, the current vehicle speed is kept unchanged, and the user switches the driving mode. It is determined whether the speed range corresponding to the target gear in the switched driving mode includes the current vehicle speed;

[0096] If it is included, after switching the driving mode, the current gear is switched to the target gear; if it is not included, after switching the driving mode, the current gear is switched to the minimum jump gear that includes the current vehicle speed to complete the vehicle gear switching control;

[0097] like Figure 7 As shown, when the initial vehicle speed is 35 kph and E3, when the driver switches to D mode, the level difference is 1-2=-1. According to the table, it is necessary to increase -1 gear, that is, reduce 1 gear, and the target gear is D2. After finding that 35 kph is within the control range of D2, the gear is switched to D2. When the driver continues to switch to S mode, the level difference is 2-3=-1. According to the table, it is necessary to increase -1 gear, and the target gear is S1. After finding that 35 kph is within the control range of S1, the gear is switched to S1. If the driver continuously switches from E mode to S mode, the level difference is 1-3=-2 gears, and the gear is switched to S1. Figure 8As shown, when the initial vehicle speed is 35 kph and S3, when the driver switches to D mode, the level difference is 3-2=1. According to the table, it is necessary to increase 1 gear and the target gear is D4. After finding that 35 kph is within the control range of D4, the gear is switched to D4. When the driver continues to switch to E mode, the level difference is 2-1=1. According to the table, it is necessary to increase 1 gear and the target gear is E5. After finding that 35 kph is within the control range of E5, the gear is switched to E5. If the driver continuously switches from S mode to E mode, the level difference is 3-1=2 gears, and the gear is switched to E5. Figure 9 As shown, when the initial vehicle speed is 5 kph and S1, when the driver switches to D mode, the level difference is 3-2=1. It can be seen from the table that 1 gear needs to be added and the target gear is D2. However, after searching, 5 kph is not within the control range of D2, so the minimum jump gear that includes the current vehicle speed is searched. After searching the vehicle speed control range of each gear in D mode, it is found that D1 is the minimum jump gear that meets this vehicle speed, so the gear is switched to D1; when the driver continues to switch to E mode, the level difference is 2-1=1. After searching, it can be found from the table that 1 gear needs to be added and the target gear is E2. After searching, 5 kph is within the control range of E2, so the gear is switched to E2; this control method gives priority to power, and can provide users with a clear and direct mode switching experience by shifting up and down.

[0098] The relationship table between the gear difference and the increase and decrease gear mentioned in the logic can be modified and calibrated according to the change of the mode switching perception requirement. When the mode switching perception requirement is high, the increase and decrease gear can be increased. When the mode switching perception requirement is low, the increase and decrease gear can be reduced.

[0099] This method calculates the level difference and obtains the target gear before shifting gears. This control method prioritizes power and can provide users with a clear and direct mode switching experience through automatic up and down gears. It can make clear distinctions through calibration based on the power characteristics of different models, and improve users' perception of power before and after driving mode switching, thereby increasing driving pleasure and improving driving satisfaction.

[0100] Example 3

[0101] like Figure 10 As shown, this embodiment provides a gear control system for improving driving mode switching perception, applying a gear control method for improving driving mode switching perception described in embodiment 1 or 2, including:

[0102] Initialization unit 301: used to set the level of each driving mode of the vehicle, the speed range corresponding to each gear in each driving mode, and the gear difference corresponding to the level difference before and after the driving mode is switched;

[0103] The level difference calculation unit 302 is used to obtain the current driving mode, gear position and vehicle speed of the vehicle, calculate the level difference between the current driving mode and the target driving mode after switching, and obtain the corresponding gear position difference based on the level difference;

[0104] Target gear calculation unit 303: used to calculate the target gear according to the current gear and the gear difference;

[0105] The gear shift unit 304 is used to determine whether the vehicle speed range corresponding to the target gear position includes the current vehicle speed in the target driving mode after switching;

[0106] If it is included, the current gear is switched to the target gear in the target driving mode; if it is not included, the current gear is switched to the minimum jump gear in the target driving mode that includes the current vehicle speed to complete the vehicle gear switching control.

[0107] During the specific implementation process, first, the initialization unit 301 sets the level of each driving mode of the vehicle, the speed range corresponding to each gear in each driving mode, and the gear difference corresponding to the level difference before and after the driving mode is switched; the level difference calculation unit 302 obtains the current driving mode, gear and speed of the vehicle, calculates the level difference between the current driving mode and the target driving mode after switching, and obtains the corresponding gear difference according to the level difference; the target gear calculation unit 303 obtains the target gear according to the calculated level difference on the basis of the current gear; finally, the current vehicle speed is kept unchanged, the user switches the driving mode, and the gear shifting unit 304 determines whether the speed range corresponding to the target gear in the switched driving mode includes the current vehicle speed; if it does, the current gear is switched to the target gear after the driving mode is switched; if it does not, the current gear is switched to the minimum jump gear that includes the current vehicle speed after the driving mode is switched, thereby completing the vehicle gear switching control;

[0108] Before shifting gears, this system first calculates the level difference and obtains the target gear. This control method prioritizes power and can provide users with a clear and direct mode switching experience through automatic up and down gears. It can make clear distinctions through calibration based on the power characteristics of different models, and improve users' perception of power before and after driving mode switching, thereby increasing driving pleasure and improving driving satisfaction.

[0109] The same or similar reference numerals correspond to the same or similar components;

[0110] The terms used in the drawings to describe positional relationships are for illustrative purposes only and should not be construed as limiting this patent;

[0111] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the claims of the present invention.

Claims

1. A gear control method for improving driving mode switching perception, characterized in that: The following steps are involved: S1: Set the level of each driving mode of the vehicle, the speed range corresponding to each gear in each driving mode, and the gear difference corresponding to the level difference before and after the driving mode switch; S2: Obtain the vehicle's current driving mode, gear, and speed, calculate the level difference between the current driving mode and the target driving mode after switching, and obtain the corresponding gear difference based on the level difference; S3: Calculate the target gear according to the current gear and the gear difference; S4: determining whether the vehicle speed range corresponding to the target gear position in the target driving mode after switching includes the current vehicle speed; If it is included, the current gear is switched to the target gear in the target driving mode; if it is not included, the current gear is switched to the minimum jump gear in the target driving mode that includes the current vehicle speed to complete the vehicle gear switching control.

2. The gear control method for improving driving mode switching perception according to claim 1, characterized in that: In step S1 , the driving modes of the vehicle include: sports mode, normal mode and economy mode.

3. The gear control method for improving driving mode switching perception according to claim 2, characterized in that: In step S1 , the levels corresponding to the sports mode, the normal mode, and the economic mode are 3, 2, and 1, respectively.

4. A gear control method for improving driving mode switching perception according to claim 2 or 3, characterized in that: In step S1, each driving mode includes five gears, namely 1st gear, 2nd gear, 3rd gear, 4th gear and 5th gear.

5. The gear control method for improving driving mode switching perception according to claim 4, characterized in that: In step S1, the vehicle speed range corresponding to each gear in each driving mode is specifically: The speed ranges corresponding to the various gears in the sports mode are as follows: 1st gear: 0-40kph; 2nd gear: 20-50kph; 3rd gear: 30-60kph; 4th gear: 40-70kph; 5th gear: 50-80kph; The vehicle speed range corresponding to each gear in the normal mode is specifically as follows: 1st gear: 0-30kph; 2nd gear: 10-40kph; 3rd gear: 20-50kph; 4th gear: 30-60kph; 5th gear: 40-80kph; The speed ranges corresponding to the various gears in the economic mode are as follows: 1st gear: 0~20kph; 2nd gear: 0~30kph; 3rd gear: 10~40kph; 4th gear: 20~50kph; 5th gear: 30~80kph.

6. The gear control method for improving driving mode switching perception according to claim 5, characterized in that: In step S1, the gear difference corresponding to the level difference before and after the driving mode switch is specifically: If the level difference is -2, the gear difference is a; if the level difference is -1, the gear difference is b; if the level difference is 0, the gear difference is 0; if the level difference is 1, the gear difference is c; if the level difference is 2, the gear difference is d; Where a, b, c and d are the first, second, third and fourth gear differences respectively, and a, b, c and d are all integers and satisfy -4 <a<b<0<c<d<4。 7. The gear control method for improving driving mode switching perception according to claim 6, characterized in that: In step S3, the specific method for calculating the target gear position based on the current gear position and the gear position difference is: The corresponding gear difference is obtained according to the calculated level difference. Based on the current gear, the current gear is added to the gear difference to obtain the target gear.

8. The gear control method for improving driving mode switching perception according to claim 7, characterized in that: The first gear difference a=-2, the second gear difference b=-1, the third gear difference c=1, and the fourth gear difference d=2.

9. A gear control system for improving driving mode switching perception, applying the gear control method for improving driving mode switching perception as claimed in any one of claims 1 to 8, characterized in that: include: Initialization unit: used to set the level of each driving mode of the vehicle, the speed range corresponding to each gear in each driving mode, and the gear difference corresponding to the level difference before and after the driving mode is switched; A level difference calculation unit is used to obtain the vehicle's current driving mode, gear position, and speed, calculate the level difference between the current driving mode and the target driving mode after switching, and obtain the corresponding gear position difference based on the level difference; Target gear calculation unit: used to calculate the target gear according to the current gear and the gear difference; Shift unit: used to determine whether the vehicle speed range corresponding to the target gear position includes the current vehicle speed in the target driving mode after switching; If it is included, the current gear is switched to the target gear in the target driving mode; if it is not included, the current gear is switched to the minimum jump gear in the target driving mode that includes the current vehicle speed to complete the vehicle gear switching control.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 8 are implemented.

Citation Information

Patent Citations

  • Coordination control method and system for gear switching and work pattern switching and vehicle

    CN105438170A

  • Intelligent target gear calculation method

    CN110889188A