Vehicle shift control method

Abstract

The application discloses a vehicle gear shifting control method applied to a vehicle with a gear shifting knob, and comprises the following steps: in a vehicle static state, if the vehicle is in a gear shifting state and a brake pedal is stepped on, a gear judging time when shifting into a drive gear or a reverse gear is set as a first preset time, and a gear judging time when shifting into a neutral gear is set as a second preset time, the second preset time is greater than the first preset time; in a vehicle dynamic state, when shifting from the drive gear to the neutral gear or shifting from the reverse gear to the neutral gear, a condition that the vehicle needs to be kept in the neutral gear for a third preset time needs to be met, otherwise, the current drive gear or the reverse gear is maintained; when shifting from the neutral gear to the drive gear, conditions that the vehicle needs to be kept in the drive gear for a fourth preset time, the vehicle is in a ready state and an accelerator pedal opening degree is less than a first preset value need to be met simultaneously; when shifting from the neutral gear to the reverse gear, conditions that the vehicle needs to be kept in the reverse gear for a fifth preset time, the vehicle is in the ready state and the accelerator pedal opening degree is less than a second preset value need to be met simultaneously. The vehicle gear shifting control method can solve unexpected gear shifting and unexpected power loss through optimization and adjustment of a control strategy without adding extra hardware, can provide customers with more trial and error opportunities, especially for misoperation of using the gear shifting knob as a windscreen wiper, and improves driving safety of the vehicle.

Description

Technical Field

[0001] This invention belongs to the field of automotive technology, specifically, it relates to a vehicle gear shifting control method. Background Technology

[0002] With the rapid development of the new energy vehicle industry, the design of vehicle control structures is also constantly being innovated. Among them, the column shifter is increasingly being adopted by new energy vehicles due to its space-saving and convenient operation. This column shifter is usually located in the position of the traditional vehicle wiper switch, adopts a self-resetting design, and has four positions: P (Park), R (Reverse), N (Neutral), and D (Drive). Users switch gears by operating the up or down lever, and there is no differentiation in the position confirmation of each gear.

[0003] However, the aforementioned column-mounted gear shifter presents certain safety hazards in actual use. Firstly, because the confirmation conditions for each gear are not clearly distinguished, users are prone to accidentally shifting into neutral (N) during gear changes. Secondly, since the column-mounted gear shifter's installation location overlaps with the traditional windshield wiper switch, users are easily influenced by traditional operating habits and may mistakenly operate the shifter as a windshield wiper switch. If the vehicle easily shifts into neutral (N) while driving due to such misoperation, it can cause the vehicle to suddenly lose power, seriously threatening driving safety.

[0004] This paper provides a vehicle shift control method, specifically addressing how to solve the problems of unexpected shifting and unexpected power loss during the use of column shifters without adding extra hardware, through optimizing control strategies. This provides users with more opportunities for trial and error, and in particular, avoids the misoperation of using the column shifter as a windshield wiper, thereby improving vehicle driving safety. This has become an urgent technical problem to be solved. Summary of the Invention

[0005] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention provides a vehicle shift control method, the purpose of which is to solve the problems of unexpected shifting and unexpected power loss during the use of a column shifter without adding additional hardware, thereby improving vehicle driving safety.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a vehicle shifting control method, applied to vehicles using a column shifter, comprising:

[0007] Based on the vehicle's operating status, differentiated gear position confirmation control is implemented for the shifting operation of the column shifter to reduce unexpected shifting and unexpected power loss.

[0008] The vehicle's operating state includes a stationary state and a dynamic state.

[0009] When the vehicle is stationary, if the vehicle is in a shiftable state and the brake pedal is depressed, the gear determination time when shifting into drive or reverse gear is set to a first preset time, and the gear determination time when shifting into neutral gear is set to a second preset time, wherein the second preset time is greater than the first preset time.

[0010] When the vehicle is in dynamic condition, when shifting from drive to neutral or from reverse to neutral, the vehicle must remain in neutral for a third preset time; otherwise, the current drive or reverse gear must be maintained. When shifting from neutral to drive, the vehicle must remain in drive for a fourth preset time, be in a ready state, and have the accelerator pedal opening less than a first preset value. When shifting from neutral to reverse, the vehicle must remain in reverse for a fifth preset time, be in a ready state, and have the accelerator pedal opening less than a second preset value.

[0011] The first preset time is 0.5 seconds.

[0012] The second preset time is 2 seconds.

[0013] The third preset time is 3 seconds.

[0014] The fourth preset time is 0.5 seconds.

[0015] The fifth preset time is 0.5 seconds.

[0016] The first preset value is 2%.

[0017] The second preset value is 2%.

[0018] The column shifter is a self-resetting shifter with four gears: parking, reverse, neutral, and drive.

[0019] When the conditions for shifting from drive to neutral or from reverse to neutral are not met while the vehicle is in dynamic condition, the current drive or reverse gear will be maintained as displayed on the instrument panel.

[0020] The vehicle shift control method of the present invention can solve unexpected shifts and unexpected power loss without adding extra hardware by optimizing and adjusting the control strategy; it gives customers more opportunities for trial and error, especially the mistake of using the column shifter as a windshield wiper, thereby improving the driving safety of the vehicle. Attached Figure Description

[0021] This manual includes the following figures, which illustrate the following:

[0022] Figure 1 This is a schematic flowchart of the vehicle gear shifting control method of the present invention. Detailed Implementation

[0023] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and to facilitate its implementation.

[0024] like Figure 1 As shown, the present invention provides a vehicle shift control method, applied to vehicles using column shifters, comprising:

[0025] Based on the vehicle's operating status, differentiated gear position confirmation control is implemented for the shifting operation of the column shifter to reduce unexpected shifting and unexpected power loss.

[0026] The vehicle's operating state includes a stationary state and a dynamic state.

[0027] When the vehicle is stationary, if the vehicle is in a shiftable state and the brake pedal is depressed, the gear determination time when shifting into drive or reverse gear is set to a first preset time, and the gear determination time when shifting into neutral gear is set to a second preset time, wherein the second preset time is greater than the first preset time.

[0028] When the vehicle is in dynamic condition, when shifting from drive to neutral or from reverse to neutral, the vehicle must remain in neutral for a third preset time; otherwise, the current drive or reverse gear must be maintained. When shifting from neutral to drive, the vehicle must remain in drive for a fourth preset time, be in a ready state, and have the accelerator pedal opening less than a first preset value. When shifting from neutral to reverse, the vehicle must remain in reverse for a fifth preset time, be in a ready state, and have the accelerator pedal opening less than a second preset value.

[0029] Specifically, in this embodiment of the invention, the column shifter is a self-resetting shifter with four gears: parking, reverse, neutral, and drive.

[0030] In this embodiment of the invention, when the conditions for switching from drive gear to neutral or from reverse gear to neutral are not met in the dynamic state of the vehicle, the current drive gear or reverse gear is maintained through the instrument display.

[0031] In this embodiment of the invention, the first preset time is 0.5 seconds.

[0032] In this embodiment of the invention, the second preset time is 2 seconds.

[0033] like Figure 1 As shown, when the vehicle is stationary:

[0034] If the vehicle is already in a shiftable state and the brake pedal is depressed, the gear selection time is 0.5 seconds when shifting into D / R; if shifting into N, the gear selection time is adjusted to 2 seconds.

[0035] In this embodiment of the invention, the third preset time is 3 seconds.

[0036] In this embodiment of the invention, the fourth preset time is 0.5 seconds.

[0037] In this embodiment of the invention, the fifth preset time is 0.5 seconds.

[0038] In this embodiment of the invention, the first preset value is 2%.

[0039] In this embodiment of the invention, the second preset value is 2%.

[0040] like Figure 1 As shown, when the vehicle is in dynamic driving:

[0041] 1) D→N→D gear: To shift from D to N gear, you need to hold the N gear position for 3 seconds before you can shift into N gear. If the condition is not met, the instrument display will remain in D gear. To shift from N to D, you can re-enter D gear if the gear lever is in D gear for 0.5 seconds, the gear is ready, and the accelerator pedal is less than a certain value (2%).

[0042] 2) R→N→R gear: To shift from R to N gear, you need to hold the N gear position for 3 seconds before shifting into N gear. If the conditions are not met, the instrument display will show that the gear is still in R gear. To shift from N to R, you can re-enter R gear if the gear lever is in R gear for 0.5 seconds, the gear is ready, and the accelerator pedal is less than a certain value (2%).

[0043] In this embodiment of the invention, addressing the core issue of vehicle power loss due to misoperation of the column shifter (such as mistakenly operating the column shifter as a windshield wiper or accidentally shifting to neutral), a differentiated gear confirmation control strategy significantly reduces the probability of unintended shifting to neutral. For example, when the vehicle is in motion, shifting from D or R to neutral requires a 3-second operation, much longer than the judgment time for conventional gear shifting, effectively filtering out short-term accidental touches. Furthermore, the judgment time for shifting to neutral (2 seconds) when stationary is longer than that for D / R (0.5 seconds), further reducing the risk of misoperation when stationary. Simultaneously, the conditions for shifting back from neutral to D / R (such as a 0.5-second operation time and throttle opening limit) ensure both operational convenience and prevent unexpected power recovery, reducing safety hazards from both directions.

[0044] In this embodiment of the invention, through differentiated control strategy design, a more tolerant margin for operational errors is provided to users without changing the hardware structure and basic operating logic. Specifically addressing the problem of mistaking the gearshift for a windshield wiper, short-term misoperations (such as a flick of less than 3 seconds) will not trigger gear shifting. Users can correct their operation without affecting the vehicle's status, reducing stress or loss of vehicle control caused by misoperation. The gear shifting time threshold setting balances "anti-accidental touch" and "operational efficiency," avoiding frequent accidental shifts while ensuring responsiveness during normal gear changes.

[0045] In this embodiment of the invention, the control strategy is optimized solely at the software level, eliminating the need for additional hardware such as sensors or gear locking mechanisms, thus avoiding any increase in vehicle manufacturing costs or complexity. For vehicles already equipped with column shifters, deployment can be rapid through upgrades or software updates, demonstrating strong adaptability and ease of adoption in existing models, thus possessing significant engineering application value.

[0046] In this embodiment of the invention, control logic is designed for two core states of the vehicle: "stationary" and "dynamic," respectively, to match different operating scenarios in actual driving. When stationary, the focus is on distinguishing the operating thresholds of N gear and D / R gear to avoid accidental switching when parking. When dynamic, the focus is on limiting the N gear engagement conditions to prevent sudden power loss during driving. Limitations on parameters such as accelerator pedal opening (e.g., a 2% threshold) are further combined with the vehicle's power status to optimize the shifting logic, ensuring that gear switching matches the actual operating needs of the vehicle and improving control accuracy.

[0047] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A vehicle shift control method applied to a vehicle equipped with a shift lever, characterized by, include: Based on the vehicle's operating status, differentiated gear position confirmation control is implemented for the shifting operation of the column shifter to reduce unexpected shifting and unexpected power loss. The vehicle's operating state includes a stationary state and a dynamic state. When the vehicle is stationary, if the vehicle is in a shiftable state and the brake pedal is depressed, the gear determination time when shifting into drive or reverse gear is set to a first preset time, and the gear determination time when shifting into neutral gear is set to a second preset time, wherein the second preset time is greater than the first preset time. When the vehicle is in dynamic condition, when switching from drive gear to neutral gear or from reverse gear to neutral gear, the condition of maintaining the neutral position for a third preset time must be met; otherwise, the current drive gear or reverse gear is maintained. When switching from neutral gear to drive gear, the conditions of maintaining the drive gear position for a fourth preset time, the vehicle being in a ready state, and the accelerator pedal opening being less than the first preset value must be met simultaneously. When switching from neutral to reverse, the following conditions must be met simultaneously: maintaining the reverse position for a fifth preset time, the vehicle being in a ready state, and the accelerator pedal opening being less than a second preset value.

2. The vehicle shift control method according to claim 1, characterized by, The first preset time is 0.5 seconds.

3. The vehicle shift control method according to claim 1, characterized by, The second preset time is 2 seconds.

4. The vehicle shift control method according to any one of claims 1 to 3, characterized by, The third preset time is 3 seconds.

5. The vehicle shift control method according to any one of claims 1 to 3, characterized by, The fourth preset time is 0.5 seconds.

6. The vehicle shift control method according to any one of claims 1 to 3, characterized by The fifth preset time is 0.5 seconds.

7. The vehicle shift control method according to any one of claims 1 to 3, characterized by, The first preset value is 2%.

8. The vehicle shift control method according to any one of claims 1 to 3, characterized in that, The second preset value is 2%.

9. The vehicle shift control method according to any one of claims 1 to 3, characterized in that, The column shifter is a self-resetting shifter with four gears: parking, reverse, neutral, and drive.

10. The vehicle shift control method according to any one of claims 1 to 3, characterized by When the conditions for shifting from drive to neutral or from reverse to neutral are not met while the vehicle is in dynamic condition, the current drive or reverse gear will be maintained as displayed on the instrument panel.

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