ADAS-based gear shifting control method, device and equipment and storage medium

Abstract

The invention provides a gear shifting control method and device based on ADAS, equipment and a storage medium. The method comprises the steps that first data information of a current vehicle is obtained; based on the speed of the current vehicle and the first data information, acquiring a first auxiliary driving state of the current vehicle; based on the first auxiliary driving state of the current vehicle, the first data information is analyzed through multiple pre-matched constraint conditions, and whether the first auxiliary driving state of the current vehicle is adjusted or not is judged according to an analysis result; wherein the plurality of constraint conditions at least comprise a first constraint condition and a second constraint condition; and according to the analysis result, the adjusted first auxiliary driving state serves as the target driving state of the current vehicle, and based on the target driving state of the current vehicle and a pre-configured gear shifting strategy, a gear control strategy corresponding to the target driving state at the current moment is obtained, and driving control is conducted. According to the invention, the driving safety and comfort are ensured.

Description

Technical Field

[0001] This application relates to the technical field of vehicles, and in particular, to an ADAS-based shift control method, device, equipment, and storage medium. Background Technique

[0002] For vehicles equipped with an advanced driver assistance system (ADAS) and an automatic transmission, it is of great significance to utilize the ADAS intelligent control strategy and give full play to the enabling applications of the automatic transmission during driving. Specifically, its importance lies in saving engine power consumption as a whole, which means reducing the energy consumption of the vehicle; reducing pollution, that is, reducing the adverse effects and power losses caused by vehicle operation on the environment, enabling the power of the vehicle to be utilized more effectively, and at the same time ensuring safe driving and the safety during driving. For such vehicles, the importance of reasonably applying these technologies and strategies is becoming increasingly prominent.

[0003] Currently, during driving, there is a lack of effective technical means to reasonably and efficiently play the coordination role between the ADAS system and the automatic transmission. Especially when sudden changes occur in the driving states of the vehicle in front and the current vehicle during driving, there are not only relatively large potential safety hazards, but also a greater adverse impact on the driving experience of users. Summary of the Invention

[0004] The purpose of this application is to provide an ADAS-based shift control method, device, equipment, and storage medium, which can reasonably and efficiently play the coordination role between the ADAS system and the automatic transmission. Through the shift control strategy, it can cope with sudden changes in the driving states of the current vehicle and the vehicle in front, ensuring safe driving. The specific solutions are as follows:

[0005] An ADAS-based shift control method, the method includes the following steps:

[0006] S1: Obtain the first data information of the current vehicle; wherein, the first data information at least includes: the absolute distance and relative speed between the current vehicle and the vehicle in front;

[0007] S2: Based on the vehicle speed of the current vehicle and the first data information, obtain the first assisted driving state of the current vehicle;

[0008] S3: Based on the first assisted driving state of the current vehicle, analyze the first data information through a plurality of pre-matched constraint conditions, and judge whether to adjust the first assisted driving state of the current vehicle according to the analysis result; wherein, the plurality of constraint conditions at least include a first constraint condition and a second constraint condition;

[0009] S4: According to the analysis result of step S3, use the adjusted first assisted driving state as the target driving state of the current vehicle, and based on the target driving state of the current vehicle and the pre-configured gear shifting strategy, obtain the gear control strategy corresponding to the target driving state at the current moment and perform driving control.

[0010] Optionally, in step S3, it specifically includes:

[0011] If the absolute distance between the current vehicle and the vehicle ahead is greater than or equal to the first distance value, adjust the first assisted driving state of the current vehicle to the neutral coasting state;

[0012] When the current vehicle is in the neutral coasting state and it is detected that the vehicle ahead decelerates, according to the analysis result of the first constraint condition, call the pre-configured gear shifting strategy;

[0013] The design formula of the first constraint condition is: the absolute distance between the current vehicle and the vehicle ahead is less than the second distance value, and the relative speed between the current vehicle and the vehicle ahead is less than the first set speed; the relative speed is the difference between the speed of the vehicle ahead and the speed of the current vehicle at the same moment.

[0014] Optionally, when the first constraint condition is satisfied, trigger the pre-configured gear shifting strategy mechanism, and generate an instruction to exit the neutral coasting state and a pre-gear engagement instruction;

[0015] Based on the obtained driving speed of the current vehicle and the pre-configured gear shifting strategy, adjust the neutral coasting state of the current vehicle to the second assisted driving state;

[0016] Based on the first data information, use the second assisted driving state as the target driving state, and correspondingly obtain the target gear of the current vehicle and the gear engagement duration.

[0017] Optionally, step S4 includes:

[0018] Detect whether the current vehicle is in an accelerating driving state;

[0019] If it is detected that the current vehicle is in an accelerating driving state and the second constraint condition is satisfied, trigger the generation of a gear up inhibition instruction; where the gear up inhibition instruction at least includes: an instruction to inhibit clutch disengagement, an instruction to inhibit gear selection, and an instruction to inhibit gear engagement;

[0020] Based on the instruction to inhibit clutch disengagement, the instruction to inhibit gear selection, and the instruction to inhibit gear engagement, adjust the first assisted driving state of the current vehicle to the third assisted driving state;

[0021] Use the third assisted driving state as the target driving state of the current vehicle, and control the driving of the current vehicle based on the pre-configured gear strategy;

[0022] When any one of the second constraint conditions is not satisfied, the first assisted driving state is maintained to control the current vehicle driving;

[0023] The design formula of the second constraint condition is:

[0024] The absolute distance between the current vehicle and the vehicle ahead is less than a third distance value, and the relative speed between the current vehicle and the vehicle ahead is less than a second set speed.

[0025] Optionally, if it is detected that the current vehicle is in an accelerating state and satisfies the second constraint condition, a gear up inhibition command is triggered to be generated; wherein, after the gear up inhibition command at least includes: inhibiting the clutch disengagement command, inhibiting the gear selection command, and inhibiting the gear engagement command steps, a jerks optimization step is further included:

[0026] The jerks optimization step specifically includes:

[0027] If the absolute displacement between the current vehicle and the vehicle ahead satisfies the third constraint condition, an exit gear up inhibition command is triggered to be generated;

[0028] The design formula of the third constraint condition is:

[0029] A fifth distance is less than the absolute distance between the current vehicle and the vehicle ahead which is less than a fourth distance; the fourth distance is less than the third distance;

[0030] According to the exit gear up inhibition command, a gear down command is generated;

[0031] In response to the gear down command, the operating data of the current vehicle during the gear down process is obtained; wherein, the operating data at least includes: the gear down time, the engine speed, and the throttle opening of the current vehicle;

[0032] Based on the obtained operating data, the first jerk level of the current vehicle is obtained from the pre-established operating data - jerk level database with a mapping relationship;

[0033] If the obtained first jerk level is greater than a first preset level, the transmission oil pressure change rate is adjusted.

[0034] Optionally, when the obtained first jerk level is greater than the first preset level, adjusting the transmission oil pressure change rate specifically includes:

[0035] Based on the driving speed and operating data of the current vehicle obtained during the gear down process, it is input into a pre-trained rate model to obtain the target transmission oil pressure change rate of the current vehicle;

[0036] Based on the target transmission oil pressure change rate, the transmission oil pressure change rate of the current vehicle is adjusted.

[0037] An ADAS-based shift control device, comprising:

[0038] A periodic acquisition module configured to periodically acquire first data information of the current vehicle through an environmental sensor; wherein, the first data information at least includes: the absolute distance and relative speed between the current vehicle and the vehicle ahead;

[0039] A state acquisition module configured to acquire the first assisted driving of the current vehicle based on the vehicle speed of the current vehicle and the first data information;

[0040] An analysis and judgment module configured to analyze the first data information based on a plurality of pre-matched constraint conditions based on the first assisted driving state of the current vehicle, and judge whether to adjust the first assisted driving state of the current vehicle according to the analysis result; wherein, the plurality of constraint conditions at least include a first constraint condition and a second constraint condition;

[0041] A control module configured to, according to the analysis result of the analysis and judgment module, use the adjusted first assisted driving state as the target driving state of the current vehicle, and based on the target driving state of the current vehicle and a pre-configured shift strategy, obtain a gear control strategy corresponding to the target driving state at the current moment and perform driving control.

[0042] A computer device, comprising a memory, a processor, and a computer program stored on the memory, wherein the processor executes the computer program to implement the steps of the method.

[0043] A computer-readable storage medium, on which a computer program / instructions are stored, and when the computer program / instructions are executed by a processor, the steps of the method are implemented.

[0044] A computer program product, comprising a computer program / instructions, and when the computer program / instructions are executed by a processor, the steps of the method are implemented.

[0045] Compared with the prior art, the beneficial effects of the present invention are:

[0046] An ADAS-based shift control method, device, equipment and storage medium provided by the present application, through the shift control strategy in the solution, the vehicle can reasonably and efficiently exert the coordination effect between the ADAS system and the automatic transmission. When facing sudden changes in the driving states of the current vehicle and the vehicle ahead, the system can quickly respond. Through precise shift operations, on the one hand, it ensures safe driving, effectively reduces power losses caused by sudden acceleration, sudden braking, etc., thereby reducing fuel consumption costs and reducing environmental pollution caused by exhaust emissions; on the other hand, the shift process is smoother, reducing component wear inside the transmission during shifting, and significantly improving driving safety and comfort. Brief Description of the Drawings

[0047] Figure 1 It is a flowchart of the ADAS-based shift control method provided by the present invention;

[0048] Figure 2 It is a schematic flowchart of an embodiment of the shift strategy;

[0049] Figure 3 It is a schematic flowchart of another embodiment of the shift strategy. Detailed Description of the Embodiment

[0050] In order to make the objectives, technical solutions and advantages of the present application clearer, the following will further describe the present application in detail with reference to the attached Figures 1 - 3 The present application will be further described in detail. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application.

[0051] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms of "a", "the" and "said" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Plural" generally includes at least two.

[0052] It should be understood that the term "and / or" used herein is only a description of the associated relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0053] It should be understood that although terms such as first, second, and third may be used in the embodiments of the present application for description, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, without departing from the scope of the embodiments of the present application, the first may also be referred to as the second, and similarly, the second may also be referred to as the first.

[0054] Depending on the context, the words "if" and "when" as used herein may be interpreted as "when" or "when...", or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)".

[0055] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a commodity or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such commodity or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the commodity or device comprising said element.

[0056] It should be particularly noted that symbols and / or numbers present in the specification that are not marked in the figure description are not figure reference numerals.

[0057] As Figure 1 shown, the present application provides an ADAS shift control method, and the method includes the following steps:

[0058] S1: Periodically obtain first data information of the current vehicle through an environment sensor; wherein, the first data information at least includes: the absolute distance d and the relative speed dv between the current vehicle and the vehicle ahead.

[0059] S2: Obtain the first assisted driving state of the current vehicle based on the current vehicle speed and the first data information.

[0060] S3: Based on the first assisted driving state of the current vehicle, analyze the first data information through a plurality of pre-matched constraint conditions, and determine whether to adjust the first assisted driving state of the current vehicle according to the analysis result; wherein, the plurality of constraint conditions at least include a first constraint condition and a second constraint condition.

[0061] S4: According to the analysis result of step S3, use the adjusted first assisted driving state as the target driving state of the current vehicle, and based on the target driving state of the current vehicle and a pre-configured shift strategy, obtain a gear control strategy corresponding to the target driving state at the current moment and perform driving control.

[0062] Specifically, the ADAS system involved in the present application collects first data between the vehicle ahead and the current vehicle (the vehicle in motion) through an environment sensor, such as a camera, lidar, or millimeter-wave radar, and sends it out in the form of a standard protocol message, so as to accurately obtain situations where the vehicle ahead suddenly decelerates, brakes, and the current vehicle accelerates rapidly. The TCU (transmission control unit) performs predictive regulation on the current vehicle based on the first data.

[0063] It can be understood that, by analyzing and processing the vehicle speed data of the current vehicle and the vehicle ahead and the first data obtained by the environmental sensor, the present application timely adjusts the assisted driving state of the current vehicle to match the optimal gear control strategy, controls the vehicle to travel, and ensures the safety during driving.

[0064] In a specific embodiment, as Figure 2 shown. In step S3, it specifically includes:

[0065] If the absolute distance d between the current vehicle and the vehicle ahead is greater than or equal to the first distance value s1, the first assisted driving state of the current vehicle is adjusted to the neutral coasting state;

[0066] When the current vehicle is in the neutral coasting state and it is detected that the vehicle ahead decelerates, according to the analysis result of the first constraint condition, a pre-configured gear shifting strategy is called.

[0067] Wherein, the design formula of the first constraint condition is: the absolute distance d between the current vehicle and the vehicle ahead is less than the second distance value s2, and the relative speed dv between the current vehicle and the vehicle ahead is less than the first set speed v1; the relative speed dv is the difference between the speed of the vehicle ahead and the speed of the current vehicle at the same moment. The first set speed v1 ≤ 0. Further, in this embodiment, the first distance value s1 can be 300 m, and the second distance value is 200 m.

[0068] Specifically, when the absolute distance d between the current vehicle and the vehicle ahead is greater than 300 meters, the ADAS system can adjust the first assisted driving state of the current vehicle to the neutral coasting state. At this time, the gear of the automatic transmission of the vehicle is in neutral.

[0069] When the current vehicle is in the neutral state and the environmental sensor detects that the vehicle ahead decelerates, according to the analysis result of the first constraint condition, it is judged whether to call a pre-configured gear shifting strategy.

[0070] If the first constraint condition is satisfied, the pre-configured gear shifting strategy mechanism is triggered to perform intelligent control on the current vehicle.

[0071] If any one of the design formulas in the first constraint condition is not satisfied, the pre-configured gear shifting strategy mechanism is not triggered.

[0072] Further, when the first constraint condition is satisfied, the pre-configured gear shifting strategy mechanism is triggered, and an instruction to exit the neutral coasting state and a pre-gear shifting instruction are generated;

[0073] Based on the obtained driving speed of the current vehicle and the pre-configured gear shifting strategy, the neutral coasting state of the current vehicle is adjusted to the second assisted driving state;

[0074] Take the second assisted driving state as the target driving state, and correspondingly obtain the target gear position and gear shifting duration of the current vehicle to control the driving of the current vehicle.

[0075] Specifically, when the first constraint condition is satisfied, trigger a pre-configured gear shifting strategy mechanism to generate a command to exit neutral coasting and a pre-gear shifting command;

[0076] Based on the pre-gear shifting command, obtain the pre-gear position and the required gear shifting duration of the current vehicle at the current moment.

[0077] At this moment, if coasting continues, the collision risk will increase. The TCU completes the operation of exiting neutral coasting according to the command to exit neutral coasting, and based on the first data information and the pre-gear shifting command, completes the operation of pre-shifting into a suitable gear. Generally, the gear shifting time is 1 - 2 s. In this application, the gear is pre-shifted, and the clutch engagement makes the engine connect with the vehicle's transmission system. Relying on the engine's counter-dragging force to increase the vehicle's braking force, the vehicle deceleration efficiency is improved, and the coasting distance caused by the 1 - 2 s time is shortened. The specific meaning of the engine's counter-dragging force is: when the vehicle needs to decelerate during driving, the transmission needs to be shifted into a suitable gear to connect the engine with the transmission system. At this time, since the engine speed is relatively low and the wheel speed is relatively high, the wheels will drive the engine to rotate, and the engine will generate a force that hinders the rotation of the wheels, and this force is the engine's counter-dragging force. Further, pre-shifting into an appropriate gear and engaging the transmission chain facilitate vehicle deceleration, avoid power loss in advance, and reduce fuel consumption costs. Finally, a suitable gear shifting duration can ensure that the gear shifting process is smoother and more stable, without generating an unpleasant sense of jerk, so as not to affect the user's driving experience.

[0078] In a specific embodiment, as Figure 3 shown. The step S4 includes:

[0079] Detect whether the current vehicle is in an accelerating driving state;

[0080] If it is detected that the current vehicle is in an accelerating state and satisfies the second constraint condition, trigger the generation of a gear position increase inhibition command; wherein, the gear position increase inhibition command at least includes: an inhibition of clutch disengagement command, an inhibition of gear selection command, and an inhibition of gear shifting command;

[0081] Based on the inhibition of clutch disengagement command, the inhibition of gear selection command, and the inhibition of gear shifting command, adjust the first assisted driving state of the current vehicle to the third assisted driving state;

[0082] Take the third assisted driving state as the target driving state of the current vehicle, and control the driving of the current vehicle based on a pre-configured gear position strategy;

[0083] When any one of the second constraint conditions is not satisfied, the first assisted driving state is maintained to control the current vehicle driving, and the pre-configured shift strategy is not triggered;

[0084] It can be understood that if the second constraint condition is not met, the ADAS system can adopt a common strategy based on the first data information and vehicle speed of the current vehicle, and can perform gear upshift control during acceleration.

[0085] The second constraint design formula is:

[0086] The absolute distance d between the current vehicle and the vehicle in front is less than the third distance value d1, and the relative speed dv between the current vehicle and the vehicle in front is less than the second set speed v2. The second set speed v2 is less than or equal to 0. In this example, the third distance value d1 is 200m.

[0087] Specifically, if the speed change of the current vehicle within a unit time is in an increasing state, and the speed change value is greater than a set value, it is determined that the current vehicle is in an accelerating driving state.

[0088] Based on the current acceleration state of the vehicle, an analysis and judgment is performed based on the second constraint condition; it can be understood that if the second constraint condition is met, the pre-configured gear shift strategy is called to generate a gear up inhibition instruction; if the second constraint condition is not met, the pre-configured gear shift strategy is not triggered.

[0089] Based on the suppression of clutch disconnection instructions, gear selection instructions and gear engagement instructions in the gear up inhibition instructions, the gear position of the current vehicle is regulated. At this moment, even if the current vehicle speed meets the upshift conditions and the engine speed increases to reach the upshift point, the transmission control unit will suppress the upshift operation and quickly complete the following instructions: release the clutch disconnection conditions, release the gear selection conditions and release the gear engagement conditions, until the ADAS system detects that the vehicle ahead has decelerated or changed lanes and left, and the transmission control unit resumes the normal shifting logic. It can be understood that through the coordinated control of the transmission of the ADAS system combined with the automatic transmission, the operation of upshifting and then downshifting is avoided, which reduces power loss, fuel consumption and environmental pollution.

[0090] It can be understood that in this embodiment, based on the current vehicle speed and the first data, an analysis and judgment is performed through the second constraint condition, and the pre-configured shift strategy is called according to the judgment result until the absolute distance d between the current vehicle and the vehicle in front is greater than the set distance d2, such as 300m, an exit gear up inhibition instruction is generated, and an instrument prompt interface is generated to prompt the driver to understand the operation of the automatic transmission.

[0091] In a specific embodiment, if it is detected that the current vehicle is in an accelerating state and meets the second constraint condition, a gear up inhibition instruction is triggered and generated; wherein, after the gear up inhibition instruction at least includes: an instruction to inhibit clutch disengagement, an instruction to inhibit gear selection, and an instruction to inhibit gear engagement, a step of optimizing the sense of jerk is further included:

[0092] The step of optimizing the sense of jerk specifically includes:

[0093] If the absolute displacement between the current vehicle and the vehicle ahead meets the third constraint condition, an instruction to exit gear up inhibition is triggered and generated;

[0094] The design formula of the third constraint condition is:

[0095] The fifth distance < the absolute distance between the current vehicle and the vehicle ahead < the fourth distance; the fourth distance < the third distance;

[0096] Based on the instruction to exit gear up inhibition, a gear down instruction is generated;

[0097] In response to the gear down instruction, the operating data of the current vehicle during gear down is obtained; wherein, the operating data at least includes: the gear down time, engine speed, and throttle opening of the current vehicle;

[0098] Based on the obtained operating data, the first sense of jerk level of the current vehicle is obtained from the pre-established operating data - sense of jerk level database with a mapped relationship;

[0099] If the obtained first sense of jerk level is greater than the first preset level, the transmission oil pressure change rate is adjusted.

[0100] For example, in this embodiment, the fifth distance is 50m and the fourth distance value is 100m; when the third constraint condition is met, it indicates that the absolute distance between the current vehicle and the vehicle ahead is rapidly decreasing, an instruction to exit gear up inhibition is triggered and generated, and based on the instruction to exit gear up inhibition, a gear down instruction is generated; in response to the gear down instruction, the operating data of the current vehicle during gear down is obtained; based on the operating data, the first sense of jerk level of the current vehicle is obtained by traversing the pre-established operating data - sense of jerk level database with a mapped relationship. When the first sense of jerk level is greater than the first preset level, a pre-configured shifting strategy is triggered to adjust the transmission oil pressure change rate parameter, so as to reduce the sense of jerk level of the current vehicle while ensuring safe driving, thereby enhancing the driver's comfort and increasing the driver's confidence, and avoiding the driver from having excessive emergency reactions due to excessive nervousness, which may lead to serious traffic accidents.

[0101] For example, in this embodiment, the jerky feeling level is divided into five levels; Level 1: Almost no jerky feeling: The downshift process is very smooth, and the driver can hardly feel any impact or vibration. The power connection of the vehicle is smooth, and the speed changes evenly.

[0102] Level 2: Slight jerky feeling: When downshifting, the driver can feel a slight impact or vibration, but it does not affect driving comfort and has little impact on the driving smoothness of the vehicle. Usually, it can only be noticed when carefully feeling.

[0103] Level 3: Obvious jerky feeling: The jerky feeling during downshifting is relatively obvious. The driver can clearly feel the impact or vibration of the vehicle, which may cause a slight shaking of the body, but it does not affect normal driving and is relatively easy to notice during daily driving.

[0104] Level 4: Severe jerky feeling: The jerky feeling is strong, and the driver's body will shake significantly due to the jerky feeling, which may affect driving comfort and safety, and may even cause the items in the vehicle to shake or make sounds.

[0105] Level 5: Extremely severe jerky feeling: The jerky feeling generated during downshifting is extremely strong. The vehicle may experience obvious shaking and surging, which not only seriously affects the driving experience but may also cause damage to components such as the vehicle's transmission system, posing a greater safety hazard.

[0106] When the first jerky feeling level is greater than level 3 jerky feeling, call the pre-configured shifting strategy to adjust the transmission oil pressure change rate parameter to reduce the jerky feeling level of the current vehicle.

[0107] In a specific embodiment, when the obtained first jerky feeling level is greater than the first preset level, adjusting the transmission oil pressure change rate specifically includes:

[0108] Based on the driving speed and operation data of the current vehicle obtained during the downshift process, input them into the pre-trained rate model to obtain the target transmission oil pressure change rate of the current vehicle; among them, according to the current driving speed, obtain the rotational speed change rate of the current vehicle; according to the engine speed, obtain the rotational speed change rate of the current vehicle during the downshift process;

[0109] Based on the target transmission oil pressure change rate, adjust the transmission oil pressure change rate of the current vehicle until the first jerky feeling level is less than the first preset level and then stop.

[0110] Specifically, the pre-trained rate model calculates the target transmission oil pressure change rate of the current vehicle based on the collected driving speed of the current vehicle and the operation data obtained during the downshift process, such as the vehicle speed, vehicle speed change rate, downshift time, engine speed, engine speed change rate, and throttle opening of the current vehicle. Among them, the pre-trained rate model is obtained through training with a large amount of data; by continuously feeding back the adjusted vehicle state data, such as the driving speed of the current vehicle and the operation data obtained during the downshift process, to the pre-trained rate model, the jerks level of the current vehicle is reduced, thereby optimizing the smoothness during the shifting process.

[0111] On the other hand, the present application provides an ADAS-based shift control device, which is characterized by including:

[0112] A periodic acquisition module configured to periodically acquire the first data information of the current vehicle through an environmental sensor; wherein, the first data information at least includes: the absolute distance and relative speed between the current vehicle and the vehicle ahead.

[0113] A state acquisition module configured to acquire the first assisted driving state of the current vehicle based on the vehicle speed of the current vehicle and the first data information.

[0114] An analysis and judgment module configured to analyze the first data information based on the first assisted driving state of the current vehicle through a plurality of pre-matched constraint conditions, and judge whether to adjust the first assisted driving state of the current vehicle according to the analysis result; the plurality of constraint conditions at least include a first constraint condition and a second constraint condition.

[0115] A control module configured to, according to the analysis result of the analysis and judgment module, use the adjusted first assisted driving state as the target driving state of the current vehicle, and based on the target driving state of the current vehicle and the pre-configured shifting strategy, obtain the gear control strategy corresponding to the target driving state at the current moment and perform driving control.

[0116] It should be noted that although this device only discloses the periodic acquisition module, the state acquisition module, the analysis and judgment module, and the control module, it does not mean that this device is only limited to the above basic functional modules; what the present invention intends to express is that on the basis of the above basic functional modules, those skilled in the art can arbitrarily add one or more functional modules in combination with the existing technology to form an infinite number of embodiments or technical solutions. That is to say, this device is open rather than closed, and it cannot be considered that the protection scope of the claims of the present invention is limited to the above disclosed basic functional modules just because only individual basic functional modules are disclosed in this embodiment.

[0117] On the other hand, the present application provides a computer device, including a memory, a processor, and a computer program stored on the memory, and the processor executes the computer program to implement the steps of the method.

[0118] On the other hand, the present application provides a computer-readable storage medium, on which a computer program / instructions are stored, and when the computer program / instructions are executed by a processor, the steps of the method are implemented.

[0119] On the other hand, the present application provides a computer program product, including a computer program / instructions, and when the computer program / instructions are executed by a processor, the steps of the method are implemented.

[0120] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features. However, such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A shift control method based on ADAS, characterized in that The method includes the following steps: S1: Obtain the first data information of the current vehicle; wherein, the first data information at least includes: the absolute distance and relative speed between the current vehicle and the vehicle ahead; S2: Based on the vehicle speed of the current vehicle and the first data information, obtain the first assisted driving state of the current vehicle; S3: Based on the first assisted driving state of the current vehicle, analyze the first data information through a plurality of pre-matched constraint conditions, and determine whether to adjust the first assisted driving state of the current vehicle according to the analysis result; wherein, the plurality of constraint conditions at least include a first constraint condition and a second constraint condition; S4: According to the analysis result of step S3, use the adjusted first assisted driving state as the target driving state of the current vehicle, and based on the target driving state of the current vehicle and the pre-configured shifting strategy, obtain the gear control strategy corresponding to the target driving state at the current moment and perform driving control.

2. The ADAS-based shifting control method according to claim 1, wherein In step S3, it specifically includes: If the absolute distance between the current vehicle and the vehicle ahead is greater than or equal to the first distance value, adjust the first assisted driving state of the current vehicle to the neutral coasting state; When the current vehicle is in the neutral coasting state and it is detected that the vehicle ahead decelerates, call the pre-configured shifting strategy according to the analysis result of the first constraint condition; The design formula of the first constraint condition is: the absolute distance between the current vehicle and the vehicle ahead is less than the second distance value, and the relative speed between the current vehicle and the vehicle ahead is less than the first set speed; the relative speed is the difference between the speed of the vehicle ahead and the speed of the current vehicle at the same moment.

3. The ADAS-based shifting control method according to claim 2, wherein When the first constraint condition is satisfied, trigger the pre-configured shifting strategy mechanism, and generate an instruction to exit the neutral coasting state and a pre-gear shifting instruction; Based on the obtained driving speed of the current vehicle and the pre-configured shifting strategy, adjust the neutral coasting state of the current vehicle to the second assisted driving state; Based on the first data information, use the second assisted driving state as the target driving state, and correspondingly obtain the target gear and gear shifting duration of the current vehicle.

4. The ADAS-based shift control method according to claim 3, wherein The step S4 includes: Detect whether the current vehicle is in an accelerating driving state; If it is detected that the current vehicle is in an accelerating driving state and the second constraint condition is satisfied, trigger the generation of a gear up inhibition instruction; the gear up inhibition instruction at least includes: an instruction to inhibit disengaging the clutch, an instruction to inhibit gear selection, and an instruction to inhibit gear shifting; Based on the instruction to inhibit disengaging the clutch, the instruction to inhibit gear selection, and the instruction to inhibit gear shifting, adjust the first assisted driving state of the current vehicle to the third assisted driving state; Use the third assisted driving state as the target driving state of the current vehicle, and control the driving of the current vehicle based on the pre-configured gear strategy; When any one of the conditions in the second constraint condition is not satisfied, maintain the first assisted driving state to control the driving of the current vehicle; The design formula of the second constraint condition is: The absolute distance between the current vehicle and the vehicle ahead is less than a third distance value, and the relative speed between the current vehicle and the vehicle ahead is less than a second set speed.

5. The ADAS-based shift control method according to claim 4, wherein if it is detected that the current vehicle is in an accelerating state and satisfies the second constraint condition, a gear-up inhibition instruction is triggered and generated; wherein, after the gear-up inhibition instruction at least includes: inhibiting the clutch disengagement instruction, inhibiting the gear selection instruction, and inhibiting the gear engagement instruction steps, a jerks optimization step is further included: The jerks optimization step specifically includes: if the absolute displacement between the current vehicle and the vehicle ahead satisfies the third constraint condition, a gear-up inhibition exit instruction is triggered and generated; The design formula of the third constraint condition is: A fifth distance is less than the absolute distance between the current vehicle and the vehicle ahead which is less than a fourth distance; the fourth distance is less than the third distance; A gear-down instruction is generated according to the gear-up inhibition exit instruction; In response to the gear-down instruction, the operation data of the current vehicle during the gear-down process is obtained; wherein, the operation data at least includes: the gear-down time, the engine speed, and the throttle opening of the current vehicle; Based on the obtained operation data, the first jerk level of the current vehicle is obtained from the pre-established operation data - jerk level database with a mapped relationship; If the obtained first jerk level is greater than a first preset level, the transmission oil pressure change rate is adjusted.

6. The ADAS-based shift control method according to claim 5, wherein When the obtained first jerk level is greater than the first preset level, adjusting the transmission oil pressure change rate specifically includes: Based on the driving speed and operation data of the current vehicle obtained during the gear-down process, input into a pre-trained rate model to obtain the target transmission oil pressure change rate of the current vehicle; Based on the target transmission oil pressure change rate, the transmission oil pressure change rate of the current vehicle is adjusted.

7. An ADAS-based shift control device, characterized in that, including: A periodic acquisition module configured to periodically acquire first data information of the current vehicle through an environment sensor; wherein, the first data information at least includes: the absolute distance and the relative speed between the current vehicle and the vehicle ahead; A state acquisition module configured to obtain the first assisted driving of the current vehicle based on the vehicle speed of the current vehicle and the first data information; An analysis and judgment module configured to analyze the first data information based on a plurality of pre-matched constraint conditions based on the first assisted driving state of the current vehicle, and judge whether to adjust the first assisted driving state of the current vehicle according to the analysis result; wherein, the plurality of constraint conditions at least include a first constraint condition and a second constraint condition; A control module configured to use the adjusted first assisted driving state as the target driving state of the current vehicle according to the analysis result of the analysis and judgment module, and obtain a gear control strategy corresponding to the target driving state at the current moment based on the target driving state of the current vehicle and a pre-configured shift strategy, and perform driving control.

8. A computer device, comprising a memory, a processor, and a computer program stored on the memory, characterized in that, The processor executes the computer program to implement the steps of the method according to any one of claims 1 to 6.

9. A computer-readable storage medium having computer programs / instructions stored thereon, characterized in that, When the computer program / instructions are executed by the processor, the steps of the method according to any one of claims 1 to 6 are implemented.

10. A computer program product, comprising a computer program / instructions, characterized in that, When the computer program / instructions are executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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