Method and device for optimizing performance of adaptive cruise system, vehicle and storage medium

Abstract

The application relates to the technical field of vehicles, in particular to a performance optimization method and device of an adaptive cruise system, a vehicle and a storage medium, wherein the method comprises the following steps: testing the anti-drag performance of the adaptive cruise system by using a first preset performance investigation strategy, obtaining anti-drag deceleration data, generating an anti-drag deceleration curve based on the anti-drag deceleration data; testing the acceleration performance of a gear shifting point of the adaptive cruise system when decelerating by using a second preset performance investigation strategy, obtaining acceleration extreme value data, and generating an acceleration extreme value curve based on the acceleration extreme value data; and optimizing the performance index of the adaptive cruise system by using the anti-drag deceleration curve and / or the acceleration extreme value curve, so that the performance of the adaptive cruise system reaches the optimum. Therefore, the problems that related technologies cannot correctly and intuitively grasp the performance of acceleration performance, anti-drag, gear shifting and the like of the adaptive cruise system on the whole vehicle system by only reading the performance index parameters provided by manufacturers are solved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a method, apparatus, vehicle, and storage medium for optimizing the performance of an adaptive cruise system. Background Technology

[0002] ACC (Adaptive Cruise Control), as an advanced intelligent driver assistance system, is gaining increasing acceptance and recognition from customers. Compared to constant speed cruise control, ACC not only allows the vehicle to maintain a certain speed, but also automatically adjusts the speed according to the distance to the vehicle in front to ensure the optimal safe distance.

[0003] In related technologies, the performance of adaptive cruise control systems is usually analyzed by reading the performance indicators of software products provided by the manufacturer. However, simply reading the performance indicator parameters cannot provide a correct and intuitive understanding of the overall vehicle system's performance in terms of acceleration, reverse drag, and gear shifting. Summary of the Invention

[0004] This application provides a method, device, vehicle, and storage medium for optimizing the performance of an adaptive cruise control system, in order to solve the problem that related technologies cannot accurately and intuitively grasp the performance of the adaptive cruise control system in the whole vehicle system under conditions such as acceleration, reverse drag, and gear shifting by reading the performance index parameters provided by the manufacturer.

[0005] The first aspect of this application provides a performance optimization method for an adaptive cruise system, comprising the following steps: testing the anti-drag performance of the adaptive cruise system using a first preset performance assessment strategy to obtain anti-drag deceleration data, and generating an anti-drag deceleration curve based on the anti-drag deceleration data; testing the acceleration performance of the adaptive cruise system at the shift point during deceleration using a second preset performance assessment strategy to obtain acceleration extreme value data, and generating an acceleration extreme value curve based on the acceleration extreme value data; and optimizing at least one performance index of the adaptive cruise system using the anti-drag deceleration curve and / or the acceleration extreme value curve, so that the performance of the adaptive cruise system reaches its optimal level.

[0006] Based on the aforementioned technical means, the embodiments of this application can conduct performance assessments of the adaptive cruise system's anti-towing performance and acceleration performance to accurately grasp the adaptive cruise system's acceleration performance and anti-towing conditions. Based on the data obtained from the performance assessment, anti-towing deceleration curves and / or acceleration extreme value curves are generated to optimize the performance of the adaptive cruise system. This allows the adaptive cruise system to have better performance in acceleration and anti-towing, and enables the development of the adaptive cruise system's control software to fully consider the performance of the vehicle's power system, thereby improving the performance of the software product.

[0007] Optionally, in one embodiment of this application, the step of testing the anti-towing performance of the adaptive cruise system using a first preset performance assessment strategy to obtain anti-towing deceleration data includes: controlling the test vehicle to coast and decelerate when the actual speed of the test vehicle reaches the preset speed corresponding to the highest gear; matching multiple speed ranges according to the preset speed, and recording the actual gear and average deceleration of the test vehicle in each speed range, and obtaining the anti-towing deceleration data based on the actual gear and average deceleration in each speed range.

[0008] Based on the above technical means, the embodiments of this application can control the vehicle to coast and decelerate when the test vehicle reaches the preset speed, and record the gear and average deceleration in that speed range, thereby obtaining a series of deceleration values. By assessing the anti-drag performance at different speeds and gears, the developed ACC product can better grasp the timing of mode switching.

[0009] Optionally, in one embodiment of this application, the step of using a second preset performance assessment strategy to test the acceleration performance of the adaptive cruise control system at the shift point during deceleration and obtaining acceleration extreme value data includes: controlling the test vehicle to coast and decelerate when the actual speed of the test vehicle reaches the preset speed corresponding to the highest gear; detecting the shift point of the engine of the test vehicle during coasting and deceleration, controlling the engine to perform a preset acceleration action at the shift point, and detecting that the jerk level of the test vehicle during downshifting acceleration is less than the maximum acceleration corresponding to the preset level; obtaining the acceleration extreme value data based on the fact that the jerk level during downshifting acceleration at different shift points is less than the maximum acceleration corresponding to the preset level.

[0010] Based on the above technical means, the embodiments of this application can control the vehicle to coast and decelerate when the test vehicle reaches the preset speed, and perform preset acceleration actions at the engine shift point of the vehicle to observe the vehicle's downshifting acceleration and whether there is any jerking when downshifting multiple gears to accelerate. The maximum acceleration without downshifting multiple gears or without obvious jerking can be recorded as the acceleration limit value of ACC in various gears and speed ranges, further improving comfort.

[0011] Optionally, in one embodiment of this application, optimizing at least one performance index of the adaptive cruise system based on the anti-drag deceleration curve and / or the acceleration extreme value curve includes: optimizing preset conditions for engine torque switching, preset conditions for the braking system to perform braking actions, and preset conditions for the vehicle electronic stability control system to be activated using the anti-drag deceleration curve; and / or optimizing the acceleration comfort level of the adaptive cruise system using the acceleration extreme value curve.

[0012] Based on the above technical means, the embodiments of this application can optimize the performance of ACC according to the anti-drag deceleration curve and the acceleration extreme value curve at the deceleration shift point, so as to correctly and intuitively grasp the performance of the adaptive cruise system in the whole vehicle system under the conditions of acceleration, anti-drag, and shifting, and improve the performance of software products.

[0013] A second aspect of this application provides a performance optimization device for an adaptive cruise system, comprising: a first testing module, configured to test the anti-drag performance of the adaptive cruise system using a first preset performance assessment strategy, obtain anti-drag deceleration data, and generate an anti-drag deceleration curve based on the anti-drag deceleration data; a second testing module, configured to test the acceleration performance of the adaptive cruise system at the shift point during deceleration using the second preset performance assessment strategy, obtain acceleration extreme value data, and generate an acceleration extreme value curve based on the acceleration extreme value data; and an optimization module, configured to optimize at least one performance index of the adaptive cruise system using the anti-drag deceleration curve and / or the acceleration extreme value curve, so that the performance of the adaptive cruise system reaches its optimal level.

[0014] Optionally, in one embodiment of this application, the first test module is further configured to control the test vehicle to coast and decelerate when the actual speed of the test vehicle reaches the preset speed corresponding to the highest gear; match multiple speed ranges according to the preset speed, and record the actual gear and average deceleration of the test vehicle in each speed range, and obtain the anti-drag deceleration data according to the actual gear and average deceleration of each speed range.

[0015] Optionally, in one embodiment of this application, the second test module is further configured to control the test vehicle to coast and decelerate when the actual speed of the test vehicle reaches the preset speed corresponding to the highest gear; detect the shift point of the engine of the test vehicle during coasting and deceleration, control the engine to perform a preset acceleration action at the shift point, and detect that the jerking level of the test vehicle during downshifting acceleration is less than the maximum acceleration corresponding to the preset level; and obtain the acceleration extreme value data based on the fact that the jerking level during downshifting acceleration at different shift points is less than the maximum acceleration corresponding to the preset level.

[0016] Optionally, in one embodiment of this application, the optimization module is further configured to optimize preset conditions for engine torque switching, preset conditions for the braking system to perform braking actions, and preset conditions for the vehicle electronic stability control system to start using the anti-drag deceleration curve; and / or to optimize the acceleration comfort level of the adaptive cruise system using the acceleration extreme value curve.

[0017] A third aspect of this application provides a vehicle including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the performance optimization method of the adaptive cruise system as described in the above embodiments.

[0018] A fourth aspect of this application provides a computer-readable storage medium having a computer program stored thereon, which is executed by a processor to implement the performance optimization method for an adaptive cruise system as described in the above embodiments.

[0019] Therefore, this application has at least the following beneficial effects:

[0020] 1. It can conduct performance assessments of the adaptive cruise control system's anti-towing and acceleration performance to accurately grasp the system's acceleration and towing capabilities. Based on the data obtained from the performance assessment, it can generate anti-towing deceleration curves and / or acceleration extreme value curves to optimize the adaptive cruise control system's performance. This will enable the adaptive cruise control system to have better performance in acceleration and towing, and will also allow the development of the adaptive cruise control system's control software to fully consider the performance of the vehicle's powertrain, thereby improving the performance of the software product.

[0021] 2. When the test vehicle reaches the preset speed, the vehicle can be controlled to coast and decelerate, and the gear and average deceleration in that speed range can be recorded to obtain a series of deceleration values. By testing the anti-drag performance at different speeds and gears, the developed ACC product can better grasp the timing of mode switching.

[0022] 3. When the test vehicle reaches the preset speed, the system can control the vehicle to coast and decelerate, and perform preset acceleration actions at the engine shift points. The system can observe the vehicle's downshifting acceleration and whether there is any jerking when downshifting multiple gears. The maximum acceleration without downshifting multiple gears or without obvious jerking can be recorded as the acceleration limit for ACC in various gears and speed ranges, further improving comfort.

[0023] 4. The performance of ACC can be optimized based on the deceleration curve of reverse drag and the acceleration extreme value curve of the deceleration shift point, so as to correctly and intuitively grasp the performance of the adaptive cruise system in the whole vehicle system under the conditions of acceleration, reverse drag, and shifting, thereby improving the performance of software products.

[0024] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0026] Figure 1 This is a flowchart of a performance optimization method for an adaptive cruise system according to an embodiment of this application;

[0027] Figure 2 This is a block diagram of a performance optimization device for an adaptive cruise system according to an embodiment of this application;

[0028] Figure 3 This is a structural schematic diagram of a vehicle provided according to an embodiment of this application.

[0029] Explanation of reference numerals in the attached diagram: First test module-100, Second test module-200, Optimization module-300, Memory-301, Processor-302, Communication interface-303. Detailed Implementation

[0030] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0031] The following description, with reference to the accompanying drawings, outlines a performance optimization method, apparatus, vehicle, and storage medium for an adaptive cruise control system according to embodiments of this application. Addressing the problems mentioned in the background section, this application provides a performance optimization method for an adaptive cruise control system. This method obtains anti-drag deceleration curves and / or acceleration extreme value curves by testing the anti-drag performance and acceleration comfort performance at extreme shift points under different speeds and gears. The performance of the adaptive cruise control system is then optimized to achieve its optimal performance. This allows for a more accurate and intuitive understanding of the adaptive cruise control system's acceleration performance, anti-drag, and shifting performance within the vehicle system. This ensures that the ACC control software development fully considers the vehicle's powertrain performance, improving software product performance. Therefore, this solves the problem in related technologies where relying solely on manufacturer-provided performance parameters fails to provide a accurate and intuitive understanding of the adaptive cruise control system's acceleration performance, anti-drag, and shifting performance within the vehicle system.

[0032] Specifically, Figure 1 This is a flowchart illustrating a performance optimization method for an adaptive cruise system provided in an embodiment of this application.

[0033] like Figure 1 As shown, the performance optimization method for this adaptive cruise system includes the following steps:

[0034] In step S101, the anti-drag performance of the adaptive cruise system is tested using the first preset performance assessment strategy to obtain anti-drag deceleration data, and an anti-drag deceleration curve is generated based on the anti-drag deceleration data.

[0035] It is understood that the embodiments of this application can test the anti-drag performance of the adaptive cruise control system at different speeds and gears, obtain anti-drag deceleration data and generate anti-drag deceleration curves, which are used for the mode switching function of ACC to optimize the intervention timing of the engine and ESC (Electronic Stability Controller).

[0036] In one embodiment of this application, the anti-drag performance of the adaptive cruise system is tested using a first preset performance assessment strategy to obtain anti-drag deceleration data. This includes: controlling the test vehicle to coast and decelerate when the actual speed of the test vehicle reaches the preset speed corresponding to the highest gear; matching multiple speed ranges according to the preset speed and recording the actual gear and average deceleration of the test vehicle in each speed range; and obtaining anti-drag deceleration data based on the actual gear and average deceleration in each speed range.

[0037] The embodiments of this application can investigate the anti-drag performance at different speeds and gears, enabling the developed ACC product to better grasp the timing of mode switching, that is, when to request engine torque, when to allow the vehicle to use the anti-drag coasting of the power system to decelerate, and when to allow the braking system to intervene in braking, etc.

[0038] Specifically, when the vehicle speed reaches a preset value, such as 80 kph, most vehicles have already shifted to the highest gear. This embodiment of the application can control the vehicle to coast and decelerate, and record the speed at the downshift point during deceleration according to the preset speed range. As shown in Table 1, this embodiment can record the gear and average deceleration within a 10 kph speed interval, obtaining a series of deceleration values, thereby generating a reverse drag deceleration curve. Table 1 is the reverse drag deceleration table.

[0039] Table 1

[0040]

[0041] It should be noted that vehicles generally creep when their speed is below 10 kph, and creep is controlled by the transmission. Therefore, the speed range below 10 kph may not be recorded in this embodiment.

[0042] In step S102, the acceleration performance of the adaptive cruise system at the shift point during deceleration is tested using the second preset performance assessment strategy to obtain acceleration extreme value data, and acceleration extreme value curve is generated based on the acceleration extreme value data.

[0043] It is understood that the embodiments of this application can test the acceleration comfort performance of the adaptive cruise control system at the extreme shift points, obtain acceleration extreme value data and generate acceleration extreme value curves, thereby optimizing the acceleration comfort performance of ACC, improving the service life of the vehicle's braking devices, reducing jerking sensation, and improving the user's riding experience.

[0044] In one embodiment of this application, the acceleration performance of the adaptive cruise control system at the shift point during deceleration is tested using a second preset performance assessment strategy to obtain acceleration extreme value data. This includes: controlling the test vehicle to coast and decelerate when the actual speed of the test vehicle reaches the preset speed corresponding to the highest gear; detecting the shift point of the engine of the test vehicle during coasting and deceleration, controlling the engine to perform a preset acceleration action at the shift point, and detecting that the jerk level of the test vehicle during downshifting acceleration is less than the maximum acceleration corresponding to the preset level; and obtaining acceleration extreme value data based on the fact that the jerk level during downshifting acceleration at different shift points is less than the maximum acceleration corresponding to the preset level.

[0045] The maximum acceleration corresponding to the preset level in this application embodiment refers to the maximum acceleration that causes a jerking sensation when the vehicle shifts gears. Exceeding this value will cause discomfort to the user.

[0046] Specifically, when the vehicle speed reaches a preset value, such as 80 kph, the vehicle is generally already in its highest gear. This embodiment can control the vehicle to coast and decelerate, recording the speed at the downshift point during deceleration. At the engine's shift point, this embodiment can use a CAN signal tool to directly send different target acceleration values ​​(above 5 mps², below 2.5 mps²) to the engine, observing the vehicle's downshift acceleration and whether there is any jerking during multi-gear downshift acceleration, as shown in Table 2. When the jerking level detected during downshift acceleration is less than the preset level, the maximum acceleration corresponding to no multi-gear downshift or no obvious jerking is recorded, thus obtaining the comfort acceleration limits of ACC in various gears and speed ranges. Table 2 is a table of extreme acceleration values ​​at downshift shift points.

[0047] Table 2

[0048] Gear shifting situation V down IV IV down to III III down to II II flat Shift speed 55kph 40kph 25kph 10kph Comfort Acceleration Extreme <![CDATA[1.2mps 2 ]]> <![CDATA[1.5mps 2 ]]> <![CDATA[1.8mps 2 ]]> <![CDATA[2.3mps 2 ]]>

[0049] In step S103, at least one performance index of the adaptive cruise system is optimized using the anti-drag deceleration curve and / or acceleration extreme value curve, so that the performance of the adaptive cruise system reaches its optimal level.

[0050] In one embodiment of this application, optimizing at least one performance index of the adaptive cruise system based on the anti-drag deceleration curve and / or the acceleration extreme value curve includes: optimizing preset conditions for engine torque switching, preset conditions for the braking system to perform braking actions, and preset conditions for the vehicle electronic stability control system to be activated using the anti-drag deceleration curve; and / or optimizing the acceleration comfort level of the adaptive cruise system using the acceleration extreme value curve.

[0051] It is understood that after obtaining the anti-drag deceleration curve and the acceleration extreme value curve at the deceleration shift point of the vehicle adaptive cruise control system through the above embodiments, the embodiments of this application can optimize the performance indicators of the adaptive cruise control system based on these two curves. The anti-drag deceleration curve can be used to optimize the intervention timing of the engine and ESC, controlling the vehicle to request engine torque at the appropriate time, controlling the vehicle to use the anti-drag coasting deceleration of the power system, and controlling the braking system to intervene in braking. The acceleration extreme value curve at the deceleration shift point can be used to limit the acceleration comfort performance of ACC, thereby ensuring that the vehicle operates in the optimal gear and performs gear shifting operations at the optimal shift point, so that the performance of the adaptive cruise control system reaches its optimal level. This allows for a correct and intuitive understanding of the performance of the adaptive cruise control system in acceleration, anti-drag, and gear shifting situations on the whole vehicle system, improving the performance of the software product.

[0052] According to an embodiment of this application, a performance optimization method for an adaptive cruise control system is proposed. This method obtains anti-drag deceleration curves and / or acceleration extreme value curves by testing the anti-drag performance and acceleration comfort performance at extreme shift points under different speeds and gears. The performance of the adaptive cruise control system is then optimized to achieve its optimal performance. This allows for a more accurate and intuitive understanding of the adaptive cruise control system's acceleration, anti-drag, and shifting performance within the overall vehicle system. This ensures that the ACC control software development fully considers the vehicle's powertrain performance, improving software product performance. Therefore, this method solves the problem in related technologies where relying solely on manufacturer-provided performance parameters fails to provide a accurate and intuitive understanding of the adaptive cruise control system's acceleration, anti-drag, and shifting performance within the overall vehicle system.

[0053] Next, referring to the accompanying drawings, a performance optimization device for an adaptive cruise system according to an embodiment of this application is described.

[0054] Figure 2 This is a block diagram of a performance optimization device for an adaptive cruise system according to an embodiment of this application.

[0055] like Figure 2 As shown, the performance optimization device 10 of the adaptive cruise system includes: a first test module 100, a second test module 200, and an optimization module 300.

[0056] The first test module 100 is used to test the anti-drag performance of the adaptive cruise system using a first preset performance assessment strategy, obtain anti-drag deceleration data, and generate an anti-drag deceleration curve based on the anti-drag deceleration data; the second test module 200 is used to test the acceleration performance of the adaptive cruise system at the shift point during deceleration using a second preset performance assessment strategy, obtain acceleration extreme value data, and generate an acceleration extreme value curve based on the acceleration extreme value data; the optimization module 300 is used to optimize at least one performance index of the adaptive cruise system using the anti-drag deceleration curve and / or the acceleration extreme value curve, so that the performance of the adaptive cruise system reaches the optimal level.

[0057] Optionally, in one embodiment of this application, the first test module 100 is further configured to control the test vehicle to coast and decelerate when the actual speed of the test vehicle reaches the preset speed corresponding to the highest gear; match multiple speed ranges according to the preset speed, and record the actual gear and average deceleration of the test vehicle in each speed range, and obtain anti-drag deceleration data based on the actual gear and average deceleration of each speed range.

[0058] Optionally, in one embodiment of this application, the second test module 200 is further configured to control the test vehicle to coast and decelerate when the actual speed of the test vehicle reaches the preset speed corresponding to the highest gear; detect the shift point of the engine of the test vehicle during coasting and deceleration, control the engine to perform a preset acceleration action at the shift point, and detect that the jerking level of the test vehicle during downshifting acceleration is less than the maximum acceleration corresponding to the preset level; and obtain acceleration extreme value data based on the fact that the jerking level during downshifting acceleration corresponding to different shift points is less than the maximum acceleration corresponding to the preset level.

[0059] Optionally, in one embodiment of this application, the optimization module 300 is further used to optimize preset conditions for engine torque switching, preset conditions for the braking system to perform braking actions, and preset conditions for the vehicle electronic stability control system to start using the anti-drag deceleration curve; and / or to optimize the acceleration comfort level of the adaptive cruise system using the acceleration extreme value curve.

[0060] It should be noted that the foregoing explanation of the performance optimization method embodiment for the adaptive cruise system also applies to the performance optimization device of the adaptive cruise system in this embodiment, and will not be repeated here.

[0061] The performance optimization device for the adaptive cruise control system proposed in this application obtains anti-drag deceleration curves and / or acceleration extreme value curves by testing the anti-drag performance and acceleration comfort performance at extreme shift points under different speeds and gears. This optimizes the performance of the adaptive cruise control system, bringing it to its optimal level. This allows for a more accurate and intuitive understanding of the adaptive cruise control system's acceleration, anti-drag, and shifting performance within the vehicle system, ensuring that the ACC control software development fully considers the vehicle's powertrain performance and improves software product performance. Therefore, this solves the problem in related technologies where relying solely on manufacturer-provided performance parameters fails to provide a accurate and intuitive understanding of the adaptive cruise control system's acceleration, anti-drag, and shifting performance within the vehicle system.

[0062] Figure 3 A schematic diagram of the structure of a vehicle provided in an embodiment of this application. The vehicle may include:

[0063] The memory 301, the processor 302, and the computer program stored on the memory 301 and capable of running on the processor 302.

[0064] When the processor 302 executes the program, it implements the performance optimization method of the adaptive cruise system provided in the above embodiments.

[0065] Furthermore, the vehicle also includes:

[0066] Communication interface 303 is used for communication between memory 301 and processor 302.

[0067] The memory 301 is used to store computer programs that can run on the processor 302.

[0068] The memory 301 may include high-speed RAM (Random Access Memory) memory, and may also include non-volatile memory, such as at least one disk storage.

[0069] If the memory 301, processor 302, and communication interface 303 are implemented independently, then the communication interface 303, memory 301, and processor 302 can be interconnected via a bus to complete communication between them. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 3The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0070] Optionally, in a specific implementation, if the memory 301, processor 302, and communication interface 303 are integrated on a single chip, then the memory 301, processor 302, and communication interface 303 can communicate with each other through an internal interface.

[0071] Processor 302 may be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement embodiments of this application.

[0072] This application also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the above-described performance optimization method for the adaptive cruise system.

[0073] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0074] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0075] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0076] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (FPGAs), field-programmable gate arrays (FPGAs), etc.

[0077] Those skilled in the art will understand that all or part of the steps of the methods described in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it includes one or a combination of the steps of the method embodiments.

[0078] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A method of performance optimization of an adaptive cruise system, characterized in that, The method comprises the following steps: a first preset performance testing strategy is used to test the anti-towing performance of the adaptive cruise control system, anti-towing deceleration data is obtained, and an anti-towing deceleration curve is generated based on the anti-towing deceleration data; a second preset performance testing strategy is used to test the acceleration performance of the adaptive cruise control system at a gear shifting point during deceleration, acceleration extreme value data is obtained, and an acceleration extreme value curve is generated based on the acceleration extreme value data; at least one performance index of the adaptive cruise control system is optimized by using the anti-towing deceleration curve and / or the acceleration extreme value curve, so that the performance of the adaptive cruise control system reaches an optimal state; the first preset performance testing strategy is used to test the anti-towing performance of the adaptive cruise control system, and the anti-towing deceleration data is obtained, which comprises the following steps: when the actual speed of the test vehicle reaches a preset speed corresponding to the highest gear, the test vehicle is controlled to slide and decelerate; a plurality of speed intervals are matched according to the preset speed, and the actual gear and the average deceleration of the test vehicle in each speed interval are recorded, and the anti-towing deceleration data is obtained according to the actual gear and the average deceleration of each speed interval; the second preset performance testing strategy is used to test the acceleration performance of the adaptive cruise control system at a gear shifting point during deceleration, and the acceleration extreme value data is obtained, which comprises the following steps: when the actual speed of the test vehicle reaches a preset speed corresponding to the highest gear, the test vehicle is controlled to slide and decelerate; the gear shifting point of the engine of the test vehicle during sliding and deceleration is detected, the engine is controlled to perform a preset acceleration action at the gear shifting point, and the jerk level of the test vehicle during downshift acceleration is detected to be less than a maximum acceleration corresponding to a preset level; the acceleration extreme value data is obtained according to the jerk level of the test vehicle during downshift acceleration corresponding to different gear shifting points being less than the maximum acceleration corresponding to the preset level.

2. The method of claim 1, wherein, at least one performance index of the adaptive cruise control system is optimized by using the anti-towing deceleration curve and / or the acceleration extreme value curve, which comprises the following steps: the anti-towing deceleration curve is used to optimize preset conditions of engine torque switching, preset conditions of brake system brake action, and preset conditions of vehicle body electronic stability control system starting; and / or, the acceleration comfort level of the adaptive cruise control system is optimized by using the acceleration extreme value curve.

3. An apparatus for optimizing performance of an adaptive cruise control system, characterized by The method comprises the following steps: a first test module is configured to use a first preset performance testing strategy to test the anti-towing performance of the adaptive cruise control system, obtain anti-towing deceleration data, and generate an anti-towing deceleration curve based on the anti-towing deceleration data; a second test module is configured to use a second preset performance testing strategy to test the acceleration performance of the adaptive cruise control system at a gear shifting point during deceleration, obtain acceleration extreme value data, and generate an acceleration extreme value curve based on the acceleration extreme value data; an optimization module is configured to use the anti-towing deceleration curve and / or the acceleration extreme value curve to optimize at least one performance index of the adaptive cruise control system, so that the performance of the adaptive cruise control system reaches an optimal state; the first test module is further configured to: when the actual vehicle speed of the test vehicle reaches the preset vehicle speed corresponding to the highest gear, controlling the test vehicle to glide deceleration; matching a plurality of vehicle speed intervals according to the preset vehicle speed, and recording the actual gear and average deceleration of the test vehicle in each vehicle speed interval, and obtaining the reverse drag deceleration data according to the actual gear and average deceleration of each vehicle speed interval; The second test module is further used for: when the actual vehicle speed of the test vehicle reaches the preset vehicle speed corresponding to the highest gear, controlling the test vehicle to glide deceleration; detecting the shift point of the engine of the test vehicle during the glide deceleration, controlling the engine to perform a preset acceleration action at the shift point, and detecting that the jerk level of the test vehicle during the downshift acceleration is less than the maximum acceleration corresponding to a preset level; obtaining the acceleration extreme value data according to the jerk level during the downshift acceleration corresponding to different shift points being less than the maximum acceleration corresponding to a preset level.

4. The apparatus of claim 3, wherein, The optimization module is further used for: optimizing preset conditions of engine torque switching, preset conditions of brake system brake action and preset conditions of vehicle body electronic stability control system start-up by using the reverse drag deceleration curve; and / or, optimizing the acceleration comfort level of the adaptive cruise system by using the acceleration extreme value curve.

5. A vehicle characterized by comprising: comprise: a memory, a processor and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the performance optimization method of the adaptive cruise system according to any one of claims 1-2.

6. A computer-readable storage medium having stored thereon a computer program, characterized in that, The program is executed by the processor to implement the performance optimization method of the adaptive cruise system according to any one of claims 1-2.

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