Vehicle starting acceleration linearity evaluation method, device, equipment and storage medium

Abstract

The present invention discloses a vehicle launch acceleration linearity evaluation method, apparatus, device, and storage medium, relating to the technical field of vehicle dynamic performance evaluation. The method includes the following steps: obtaining a correspondence between at least one quantifiable driving experience parameter and accelerator pedal travel to evaluate the vehicle launch acceleration linearity. The present invention evaluates the linearity of vehicle launch acceleration dynamics by analyzing the linear relationship between peak accelerations corresponding to a set of actual accelerator pedal travels applied by the driver during launch.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle dynamic performance evaluation, and in particular to a vehicle starting acceleration linearity evaluation method, device, equipment and storage medium. Background Art

[0002] Vehicle dynamics is a crucial metric for evaluating vehicle performance. On the one hand, dynamics plays a decisive role in a vehicle's transport efficiency, making it one of its most fundamental and important performance characteristics. On the other hand, vehicle dynamics is crucial for enhancing the customer experience and strengthening the competitiveness of vehicle models. The customer experience is the vehicle's dynamic performance under partial load, corresponding to a portion of the accelerator pedal's travel, in everyday driving conditions, which more closely resembles actual use. Therefore, objective evaluation of partial load dynamics, which closely resembles everyday driving, is crucial for guiding the early stages of vehicle model development.

[0003] Currently, vehicle re-acceleration dynamics is typically evaluated based on the vehicle's maximum achievable dynamics at 100% accelerator pedal opening. This evaluation is often based on the time interval required for the vehicle to accelerate through a specific speed range. Commonly used speed ranges include 0-50 km / h and 0-100 km / h. This evaluation method directly uses time data as the evaluation criterion; the smaller the time value, the better the vehicle's dynamics.

[0004] However, while driving, accelerator pedal input directly reflects the driver's expectations of vehicle power. Accelerator pedal travel is an absolute quantity that can be directly controlled and felt by the driver, while accelerator pedal opening is a relative quantity related to total accelerator pedal travel. This requires the driver to compare the accelerator pedal's total travel, placing high demands on non-professional driving evaluators and increasing the difficulty of evaluation. Furthermore, the evaluation benchmark is inconsistent due to the influence of total pedal travel.

[0005] Furthermore, in actual driving, drivers rarely press the accelerator pedal at 100% and often have no idea how much they're actually pressing. The above evaluation method uses objective data at 100% accelerator pedal position, which effectively reflects the vehicle's maximum power performance. However, it cannot evaluate the vehicle's power performance when the accelerator pedal is partially depressed during actual driving. Because pressing the accelerator pedal at 100% is rarely seen in daily driving conditions, it does not accurately reflect the actual driving experience.

[0006] The amount of accelerator pedal stroke a driver applies directly reflects their expectations of vehicle power. In real-world driving, the accelerator pedal stroke varies with each application. Drivers expect the acceleration power to change in a consistent and easily understandable manner, ideally with a linear relationship to the accelerator pedal stroke. However, there is currently a lack of a method for evaluating the linearity of starting acceleration power. Summary of the Invention

[0007] In response to the defects existing in the prior art, the first aspect of the present invention provides a vehicle starting acceleration linearity evaluation method, which can evaluate the vehicle starting acceleration dynamic linearity through the linear change relationship between the peak accelerations corresponding to a set of actual accelerator pedal strokes pressed by the driver at the start.

[0008] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0009] A method for evaluating vehicle starting acceleration linearity, the method comprising the following steps:

[0010] Obtain a corresponding relationship between at least one quantifiable driving experience parameter and accelerator pedal travel to evaluate the vehicle's starting acceleration linearity.

[0011] In some embodiments, obtaining a correspondence between at least one quantifiable driving experience parameter and accelerator pedal travel to evaluate vehicle startup acceleration linearity includes:

[0012] Setting a plurality of different accelerator pedal travel test points including a maximum accelerator pedal travel;

[0013] When the vehicle is stationary, the accelerator pedal is depressed and held for the distance corresponding to each accelerator pedal travel test point, and the vehicle's starting peak acceleration at all accelerator pedal travel test points is calculated to generate a starting peak acceleration-accelerator pedal travel curve;

[0014] The vehicle's starting acceleration linearity is evaluated based on the slope of the curve between each accelerator pedal stroke test point and the initial accelerator pedal stroke test point on the starting peak acceleration-accelerator pedal stroke curve.

[0015] In some embodiments, evaluating the vehicle's starting acceleration linearity based on the slope of a curve between each accelerator pedal travel test point and the initial accelerator pedal travel test point on the starting peak acceleration-accelerator pedal travel curve includes:

[0016] Subtract or divide the slopes of the curves between each accelerator pedal stroke test point and the starting accelerator pedal stroke test point in sequence to obtain a set of starting acceleration linearity evaluation values;

[0017] The closer the starting acceleration linearity evaluation values ​​are, the better the vehicle's starting acceleration linearity is.

[0018] In some embodiments, the present invention further comprises:

[0019] According to the starting acceleration-accelerator pedal travel curve, a target accelerator pedal travel corresponding to the first maximum starting peak acceleration is obtained;

[0020] Evaluate the vehicle's starting acceleration linearity based on the target accelerator pedal travel.

[0021] In some embodiments, evaluating the vehicle launch acceleration linearity based on the target accelerator pedal travel includes:

[0022] The closer the target accelerator pedal travel is to the maximum accelerator pedal travel, the better the vehicle's starting acceleration linearity.

[0023] In some embodiments, a plurality of accelerator pedal travel test points distributed in an arithmetic progression are set.

[0024] A second aspect of the present invention provides a vehicle starting acceleration linearity evaluation device, which can evaluate the vehicle starting acceleration dynamic linearity based on the linear change relationship between the peak accelerations corresponding to a set of actual accelerator pedal strokes depressed by the driver at the time of starting.

[0025] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0026] A vehicle starting acceleration linearity evaluation device, comprising:

[0027] The evaluation module is used to obtain the corresponding relationship between at least one quantifiable driving experience parameter and the accelerator pedal travel to evaluate the vehicle's starting acceleration linearity.

[0028] In some embodiments, the evaluation module is used to:

[0029] Setting a plurality of different accelerator pedal travel test points including a maximum accelerator pedal travel;

[0030] When the vehicle is stationary, the accelerator pedal is depressed and held for the distance corresponding to each accelerator pedal travel test point, and the vehicle's starting peak acceleration at all accelerator pedal travel test points is calculated to generate a starting peak acceleration-accelerator pedal travel curve;

[0031] The vehicle's starting acceleration linearity is evaluated based on the slope of the curve between each accelerator pedal stroke test point and the initial accelerator pedal stroke test point on the starting peak acceleration-accelerator pedal stroke curve.

[0032] A third aspect of the present invention provides a device comprising a processor, a memory, and a computer program stored in the memory and executable by the processor, wherein when the computer program is executed by the processor, the steps of the above-mentioned vehicle starting acceleration linearity evaluation method are implemented.

[0033] A fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the steps of the above-mentioned vehicle starting acceleration linearity evaluation method are implemented.

[0034] Compared with the prior art, the advantages of the present invention are:

[0035] The vehicle launch acceleration linearity evaluation method of this invention evaluates vehicle launch acceleration linearity by obtaining the corresponding relationship between at least one quantifiable driving experience parameter and accelerator pedal travel. Specifically, the linear relationship between the peak acceleration corresponding to a set of actual accelerator pedal travels applied by the driver during launch is used to evaluate the linearity of the vehicle's partial-load launch acceleration dynamics. This effectively addresses the limitation of intuitive quantitative evaluation in existing technologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a flow chart of a method for evaluating vehicle starting acceleration linearity according to an embodiment of the present invention;

[0037] Figure 2 This is a graph showing the peak acceleration at start-up versus the accelerator pedal travel in an embodiment of the present invention;

[0038] Figure 3 2 is a schematic block diagram of the structure of a computer device in an embodiment of the present invention. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of this application.

[0040] To facilitate understanding of the present invention, some terms involved in the present invention are first explained:

[0041] Starting power: The power felt by the driver when the vehicle is stationary and the accelerator pedal is pressed at any stroke.

[0042] Power linearity: The linear relationship between the acceleration felt by the driver and the amount of accelerator pedal depressed.

[0043] To address the problems in the prior art, the present invention takes the driving habits and perception habits of customers during actual driving as its starting point, and proposes evaluating the linearity of a vehicle's partial-load starting acceleration dynamics based on the linear change relationship between the starting peak acceleration corresponding to a set of actual accelerator pedal strokes depressed by the driver.

[0044] Specifically, an embodiment of the present invention provides a method for evaluating vehicle starting acceleration linearity, the method comprising the following steps:

[0045] Obtain a corresponding relationship between at least one quantifiable driving experience parameter and accelerator pedal travel to evaluate the vehicle's starting acceleration linearity.

[0046] In specific implementation, the above steps include:

[0047] S1. Set multiple different accelerator pedal travel test points including the maximum accelerator pedal travel.

[0048] It is worth noting that each accelerator pedal stroke test point represents a different accelerator pedal stroke. In this embodiment, multiple accelerator pedal stroke test points can be set to increase or decrease in sequence, including the maximum accelerator pedal stroke. To reflect the regularity, multiple accelerator pedal stroke test points can be set to be distributed in an arithmetic progression, or multiple accelerator pedal stroke test points can be set to be distributed in a geometric progression. Of course, a series of accelerator pedal stroke test points in other forms can also be set according to needs.

[0049] S2. While the vehicle is stationary, depress and hold the accelerator pedal at the stroke corresponding to each accelerator pedal stroke test point. Calculate the vehicle's starting peak acceleration at all accelerator pedal stroke test points and generate a starting peak acceleration-accelerator pedal stroke curve.

[0050] It can be understood that after setting the above-mentioned accelerator pedal stroke test points, the test can be started in sequence. For each accelerator pedal stroke test point, starting from the vehicle being stationary, the corresponding accelerator pedal stroke is pressed and maintained. After a period of time, its starting peak acceleration can be collected. After the starting peak accelerations of all accelerator pedal stroke test points are collected, the starting peak acceleration-accelerator pedal stroke curve can be generated.

[0051] S3. Evaluate the vehicle's starting acceleration linearity based on the slope of the curve between each accelerator pedal travel test point and the starting accelerator pedal travel test point on the starting peak acceleration-accelerator pedal travel curve.

[0052] Specifically, step S3 includes:

[0053] S31. Subtract or divide the slopes of the curves between each accelerator pedal travel test point and the starting accelerator pedal travel test point in sequence to obtain a set of starting acceleration linearity evaluation values.

[0054] S32. If the starting acceleration linearity evaluation values ​​are closer, the vehicle starting acceleration linearity is better.

[0055] It can be understood that if the starting acceleration linearity evaluation values ​​are closer, it means that the overall distribution is more uniform, without sudden increases or decreases, so the vehicle starting acceleration linearity is better.

[0056] In some embodiments, the present invention further comprises:

[0057] S4. Based on the starting acceleration-accelerator pedal travel curve, obtain a target accelerator pedal travel corresponding to the first time when the maximum starting peak acceleration is reached.

[0058] It is worth noting that the maximum starting peak acceleration here refers to the largest of all starting peak accelerations. Generally speaking, the maximum accelerator pedal travel corresponds to the maximum starting peak acceleration, but generally speaking, the accelerator pedal often reaches the maximum starting peak acceleration before reaching the maximum travel.

[0059] S5. Evaluate the vehicle's starting acceleration linearity based on the target accelerator pedal travel.

[0060] Specifically, the closer the target accelerator pedal stroke is to the maximum accelerator pedal stroke, the better the vehicle's starting acceleration linearity is.

[0061] This is because the closer the target accelerator pedal stroke is to the maximum accelerator pedal stroke, the more uniform the acceleration increase will be after the pedal is depressed. For example, if the maximum starting peak acceleration is reached when the accelerator pedal is halfway depressed, there will basically be no change in the second half. In this case, the vehicle's starting acceleration linearity is not very good.

[0062] The following is a specific example to further illustrate:

[0063] An embodiment of the present invention provides an objective evaluation method for the linearity of vehicle starting acceleration performance corresponding to multiple accelerator pedal strokes in an arithmetic progression, such as s, s+b, s+2b, s+3b, etc., which specifically includes the following steps:

[0064] (1) The vehicle starts and accelerates at a certain accelerator pedal stroke s, s+b, s+2b, s+3b…s+xb, smax that needs to be evaluated for dynamics, such as 10mm, 15mm, 20mm, 25mm…50mm; record the accelerator pedal stroke and the vehicle's starting peak acceleration a s、a (s+b) 、a (s+2b) 、a (s+3b) …a (s+xb) 、a max ; The selection of typical operating points and data recording table are as follows:

[0065] Pedal travel (mm) s s+b s+2b s+3b 。。。 s+xb <![CDATA[s max ]]> Peak acceleration (m / s2) PLA-1 <![CDATA[a s-1 ]]> <![CDATA[a (s+b)-1 ]]> <![CDATA[a (s+2b)-1 ]]> <![CDATA[a (s+3b)-1 ]]> <![CDATA[a (s+xb)-1 ]]> <![CDATA[a max-1 ]]> Peak acceleration (m / s2) PLA-2 <![CDATA[a s-2 ]]> <![CDATA[a (s+b)-2 ]]> <![CDATA[a (s+2b)-2 ]]> <![CDATA[a (s+3b)-2 ]]> <![CDATA[a (s+xb)-2 ]]> <![CDATA[a max-2 ]]> Peak acceleration (m / s2) PLA-3 <![CDATA[a s-3 ]]> <![CDATA[a (s+b)-3 ]]> <![CDATA[a (s+2b)-3 ]]> <![CDATA[a (s+3b)-3 ]]> <![CDATA[a (s+xb)-3 ]]> <![CDATA[a max-3 ]]>

[0066] (2) Extract the accelerator pedal s, s+b, s+2b, s+3b... and vehicle acceleration a in step (1) s 、a (s+b) 、a (s+2b) 、a (s+3b) …a (s+xb) 、a max ; and draw a PLA curve, see Figure 2 As shown, PLA refers to Peak Launch Acceleration, and PLA-1, PLA-2, and PLA-3 correspond to three different vehicles;

[0067] (3) Extract the first a (s+xb) =a max The corresponding accelerator pedal travel is s+xb;

[0068] (4) Calculate k1 = [a (s+b) -a s ] / b、k2=[a (s+2b) -a s ] / 2b、k3=[a (s+3b) -as] / 3b…, and obtain a set of starting peak acceleration change slopes k1, k2, k3,…;

[0069] (5) Apply the extraction results of step (3) to objectively evaluate the linearity of the vehicle's starting acceleration power during starting acceleration: s+xb and s max The smaller the difference, the better the starting linearity is within the entire accelerator pedal travel range;

[0070] (6) Using the calculation results of step (4), objectively evaluate the linearity of the vehicle's starting acceleration power during starting acceleration: the closer the slopes k1, k2, k3, etc. of each operating point in the oblique line portion <s+xb are, the better the linearity at the start.

[0071] In summary, the vehicle launch acceleration linearity evaluation method of the present invention evaluates vehicle launch acceleration linearity by obtaining the corresponding relationship between at least one quantifiable driving experience parameter and accelerator pedal travel. Specifically, the linear relationship between the peak acceleration corresponding to a set of actual accelerator pedal travels applied by the driver during launch is used to evaluate the linearity of the vehicle's partial-load launch acceleration dynamics. This effectively addresses the problem of prior art in its inability to provide intuitive quantitative evaluation.

[0072] At the same time, an embodiment of the present invention provides a vehicle starting acceleration linearity evaluation device, which includes: an evaluation module, which is used to obtain the correspondence between at least one quantifiable driving experience parameter and the accelerator pedal stroke to evaluate the vehicle starting acceleration linearity.

[0073] In some embodiments, the evaluation module is used to:

[0074] Setting a plurality of different accelerator pedal travel test points including a maximum accelerator pedal travel;

[0075] When the vehicle is stationary, the accelerator pedal is depressed and held for the distance corresponding to each accelerator pedal travel test point, and the vehicle's starting peak acceleration at all accelerator pedal travel test points is calculated to generate a starting peak acceleration-accelerator pedal travel curve;

[0076] The vehicle's starting acceleration linearity is evaluated based on the slope of the curve between each accelerator pedal stroke test point and the initial accelerator pedal stroke test point on the starting peak acceleration-accelerator pedal stroke curve.

[0077] In some embodiments, the evaluation module evaluates the vehicle's starting acceleration linearity based on the slope of a curve between each accelerator pedal travel test point and a starting accelerator pedal travel test point on a starting peak acceleration-accelerator pedal travel curve, including:

[0078] Subtract or divide the slopes of the curves between each accelerator pedal stroke test point and the starting accelerator pedal stroke test point in sequence to obtain a set of starting acceleration linearity evaluation values;

[0079] The closer the starting acceleration linearity evaluation values ​​are, the better the vehicle's starting acceleration linearity is.

[0080] In some embodiments, the evaluation module is further configured to:

[0081] According to the starting acceleration-accelerator pedal travel curve, a target accelerator pedal travel corresponding to the first maximum starting peak acceleration is obtained;

[0082] Evaluate the vehicle's starting acceleration linearity based on the target accelerator pedal travel.

[0083] In some embodiments, the evaluation module evaluates the vehicle launch acceleration linearity based on the target accelerator pedal travel, including:

[0084] The closer the target accelerator pedal travel is to the maximum accelerator pedal travel, the better the vehicle's starting acceleration linearity.

[0085] In some embodiments, the evaluation module is configured to set a plurality of accelerator pedal travel test points distributed in an arithmetic progression.

[0086] An embodiment of the present invention also provides a device, comprising a processor, a memory, and a computer program stored in the memory and executable by the processor, wherein when the computer program is executed by the processor, the steps of the above-mentioned vehicle starting acceleration linearity evaluation method are implemented.

[0087] For details, see Figure 3 As shown, the device in the embodiment of the present invention is a computer device, which includes a processor, a memory and a network interface connected through a system bus, wherein the memory may include a non-volatile storage medium and an internal memory.

[0088] The non-volatile storage medium can store an operating system and a computer program. The computer program includes program instructions, and when the program instructions are executed, the processor can execute any one of the vehicle starting acceleration linearity evaluation methods.

[0089] The processor is used to provide computing and control capabilities and support the operation of the entire computer equipment.

[0090] The internal memory provides an environment for the operation of the computer program in the non-volatile storage medium. When the computer program is executed by the processor, the processor can execute any vehicle starting acceleration linearity evaluation method.

[0091] The network interface is used for network communication, such as sending assigned tasks, etc. Those skilled in the art will understand that Figure 3 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0092] It should be understood that the processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0093] An embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the above-mentioned vehicle starting acceleration linearity evaluation method are implemented.

[0094] It will be understood by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In a hardware implementation, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or may be implemented as hardware, or may be implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable storage medium, which may include a computer-readable storage medium (or a non-transitory medium) and a communication medium (or a temporary medium).

[0095] As is well known to those skilled in the art, the term computer-readable storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules or other data). Computer-readable storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. Furthermore, as is well known to those skilled in the art, communication media typically contains computer-readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0096] For example, the computer-readable storage medium may be an internal storage unit of the electronic device of the aforementioned embodiment, such as a hard disk or memory of the electronic device. The computer-readable storage medium may also be an external storage device of the electronic device, such as a plug-in hard disk, a smart memory card (SMC), a secure digital (SD) card, a flash memory card, etc. equipped on the electronic device.

[0097] The above are only specific implementations of the embodiments of the present invention, but the scope of protection of the embodiments of the present invention is not limited to them. Any person skilled in the art can easily conceive of various equivalent modifications or replacements within the technical scope disclosed in the embodiments of the present invention, and such modifications or replacements should be included in the scope of protection of the embodiments of the present invention. Therefore, the scope of protection of the embodiments of the present invention should be based on the scope of protection of the claims.

Claims

1. A method for evaluating vehicle acceleration linearity at start-up, characterized in that: The method comprises the following steps: Obtaining a correspondence between at least one quantifiable driving experience parameter and accelerator pedal travel to evaluate the vehicle's starting acceleration linearity; Obtaining a correspondence between at least one quantifiable driving experience parameter and accelerator pedal travel to evaluate vehicle startup acceleration linearity includes: setting a plurality of different accelerator pedal travel test points, including a maximum accelerator pedal travel; while the vehicle is stationary, depressing and holding the accelerator pedal travel corresponding to each accelerator pedal travel test point, calculating the vehicle's startup peak acceleration at all accelerator pedal travel test points, and generating a startup peak acceleration-accelerator pedal travel curve; and evaluating the vehicle's startup acceleration linearity based on the slope of the curve between each accelerator pedal travel test point and the starting accelerator pedal travel test point on the startup peak acceleration-accelerator pedal travel curve.

2. The vehicle starting acceleration linearity evaluation method according to claim 1, characterized in that: The evaluation of the vehicle starting acceleration linearity based on the slope of the curve between each accelerator pedal stroke test point and the initial accelerator pedal stroke test point on the starting peak acceleration-accelerator pedal stroke curve includes: Subtract or divide the slopes of the curves between each accelerator pedal stroke test point and the starting accelerator pedal stroke test point in sequence to obtain a set of starting acceleration linearity evaluation values; The closer the starting acceleration linearity evaluation values ​​are, the better the vehicle's starting acceleration linearity is.

3. The vehicle starting acceleration linearity evaluation method according to claim 1, characterized in that: Also includes: According to the starting acceleration-accelerator pedal travel curve, a target accelerator pedal travel corresponding to the first maximum starting peak acceleration is obtained; Evaluate the vehicle's starting acceleration linearity based on the target accelerator pedal travel.

4. The vehicle starting acceleration linearity evaluation method according to claim 3, characterized in that: The evaluation of the vehicle starting acceleration linearity based on the target accelerator pedal travel includes: The closer the target accelerator pedal travel is to the maximum accelerator pedal travel, the better the vehicle's starting acceleration linearity.

5. The vehicle starting acceleration linearity evaluation method according to claim 1 or 3, characterized in that: Set multiple accelerator pedal travel test points distributed in an arithmetic progression.

6. A vehicle starting acceleration linearity evaluation device, characterized in that: include: an evaluation module, configured to obtain a correspondence between at least one quantifiable driving experience parameter and accelerator pedal travel, so as to evaluate the vehicle's starting acceleration linearity; The evaluation module is used to: set multiple different accelerator pedal stroke test points including the maximum accelerator pedal stroke; when the vehicle is stationary, press and hold the stroke corresponding to each accelerator pedal stroke test point, calculate the vehicle's starting peak acceleration at all accelerator pedal stroke test points, and generate a starting peak acceleration-accelerator pedal stroke curve; and evaluate the vehicle's starting acceleration linearity based on the slope of the curve between each accelerator pedal stroke test point and the starting accelerator pedal stroke test point on the starting peak acceleration-accelerator pedal stroke curve.

7. A device, characterized in that The device includes a processor, a memory, and a computer program stored in the memory and executable by the processor, wherein when the computer program is executed by the processor, the steps of the vehicle starting acceleration linearity evaluation method according to any one of claims 1 to 5 are implemented.

8. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, wherein when the computer program is executed by a processor, the steps of the vehicle starting acceleration linearity evaluation method according to any one of claims 1 to 5 are implemented.

Images