A method, device, equipment and medium for evaluating comfort level during driving

Abstract

The application discloses a method, device, equipment and medium for evaluating a comfort level during driving, which comprises the following steps: collecting the jerk and acceleration of a vehicle in real time during driving of the vehicle; obtaining the driving duration of the vehicle, the collection time of each jerk and the collection time of each acceleration; determining the comfort level corresponding to the jerk of each collection time based on the jerk of each collection time and the preset jerk threshold corresponding to each comfort level; determining the comfort level corresponding to the acceleration of each collection time based on the acceleration of each collection time and the preset acceleration threshold corresponding to each comfort level; and evaluating the comfort level during driving based on the comfort level corresponding to the acceleration of each collection time, the comfort level corresponding to the jerk of each collection time, the collection time of each acceleration, the collection time of each jerk and the driving duration.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of road traffic, and particularly relates to a driving process comfort level evaluation method, device, equipment and medium. BACKGROUND

[0002] In the driving process of a vehicle, comfort is a direct embodiment of driving quality under the premise of meeting safety. At present, the test method or evaluation method for driving comfort mainly relies on subjective results of automobile subjective evaluation engineers or user research, that is, through questionnaires or interviews to describe uncomfortable time and corresponding vehicle dynamic conditions in the automatic driving process, which lacks quantitative description of overall comfort degree, so that the evaluation result is not objective. SUMMARY

[0003] Therefore, the technical problem to be solved by the present application is to overcome the defect that the comfort degree in the driving process of a vehicle cannot be quantitatively analyzed in the prior art, so as to provide a driving process comfort level evaluation method, device, equipment and medium.

[0004] In a first aspect, the present application provides a driving process comfort level evaluation method, comprising:

[0005] real-time collection of jerk and acceleration of the vehicle in the driving process of the vehicle; acquisition of driving duration, collection time of each jerk and collection time of each acceleration; determination of a comfort level corresponding to the jerk at each collection time based on the jerk at each collection time and preset jerk threshold values corresponding to a plurality of comfort levels; determination of a comfort level corresponding to the acceleration at each collection time based on the acceleration at each collection time and preset acceleration threshold values corresponding to the plurality of comfort levels; and evaluation of the comfort level in the driving process based on the comfort level corresponding to the acceleration at each collection time, the comfort level corresponding to the jerk at each collection time, the collection time of each acceleration, the collection time of each jerk and the driving duration.

[0006] Since the change range of acceleration and jerk in time domain is an important factor affecting the passenger's ride experience during the vehicle driving, the acceleration and jerk data collected in real time during the vehicle driving are combined with the acceleration threshold and the jerk threshold under each uncomfortable level to determine the comfortable level corresponding to the acceleration at each collection time and the comfortable level corresponding to the jerk at each collection time, so as to quantify the passenger's comfort during the driving in this way. Since the acceleration threshold and the jerk threshold corresponding to each uncomfortable level are the relatively objective reference values obtained in a large number of tests combined with the actual feelings of the passengers during the ride, the finally determined comfortable level during the driving is relatively objective and close to the actual feeling of the passengers. Subsequently, based on the comfortable level corresponding to the acceleration at each collection time, the comfortable level corresponding to the jerk at each collection time, the collection time of each acceleration, the collection time of each jerk and the driving time, the comfortable level during the driving is evaluated, which is equivalent to comprehensively evaluating the uncomfortable feeling caused by the jerk and the uncomfortable feeling caused by the acceleration during the whole driving, so as to obtain a relatively objective and accurate result for evaluating the comfortable level during the driving. By using the above technical means, the present application solves the defect that the comfort evaluation during the driving is too subjective in the prior art, realizes the quantification of the comfort, and makes the evaluation of the comfort during the vehicle driving more intuitive.

[0007] With reference to the first aspect, in a first embodiment of the first aspect, the comfortable level corresponding to the jerk at each collection time is determined based on the jerk at each collection time and the jerk threshold corresponding to each comfortable level.

[0008] The jerk at each collection time and each jerk threshold are input into the first level evaluation algorithm to determine the comfortable level corresponding to the jerk at each collection time.

[0009] With reference to the first aspect, in a second embodiment of the first aspect, the first level evaluation algorithm is represented by the following formula:

[0010]

[0011] wherein, D jerk represents the comfortable level corresponding to the jerk at the current time, jerk represents the jerk at the current time, the current time is any time during the vehicle driving, jerk i represents the jerk threshold corresponding to the i-th comfortable level, n represents the highest comfortable level, and sgn() represents the sign function.

[0012] With reference to the first aspect, in a third embodiment of the first aspect, the comfort level corresponding to the acceleration at each collection time is determined based on the acceleration at each collection time and acceleration thresholds corresponding to the plurality of comfort levels respectively, and the determination comprises:

[0013] an acceleration interval corresponding to the acceleration at each collection time is determined, wherein the acceleration interval includes a plurality of comfort levels, each comfort level corresponding to an acceleration threshold; a second level evaluation algorithm corresponding to the acceleration interval is determined according to the acceleration interval in which the acceleration at the first collection time is located; the acceleration at the first collection time and the acceleration thresholds corresponding to the plurality of comfort levels included in the acceleration interval are input into the second level evaluation algorithm to obtain the comfort level corresponding to the acceleration at the first collection time, wherein the first collection time is any of the times at which the acceleration is collected in the driving duration of the vehicle.

[0014] With reference to the first aspect, in a fourth embodiment of the first aspect, the acceleration interval includes a first acceleration interval, a second acceleration interval, and a third acceleration interval.

[0015] The second level evaluation algorithm corresponding to the first acceleration interval is represented by the following formula:

[0016]

[0017] The second level evaluation algorithm corresponding to the second acceleration interval is represented by the following formula:

[0018]

[0019] The second level evaluation algorithm corresponding to the third acceleration interval is represented by the following formula:

[0020]

[0021] wherein D a represents the comfort level corresponding to the acceleration at the current time, a represents the acceleration at the current time, the current time being any time in the driving process of the vehicle, a 1i represents the acceleration threshold corresponding to the first comfort level in the first acceleration interval, a 2i represents the acceleration threshold corresponding to the i-th comfort level in the second acceleration interval, a 3i represents the acceleration threshold corresponding to the i-th comfort level in the third acceleration interval, n represents the highest level of the comfort level, and sgn() represents the sign function.

[0022] In combination with the first aspect, in a fifth embodiment of the first aspect, the comfort level in the driving process is evaluated based on the comfort level corresponding to each acceleration, the comfort level corresponding to each jerk, the collection time of each acceleration, the collection time of each jerk, and the driving duration.

[0023] Based on the comfort level corresponding to each acceleration, the collection time of each acceleration, and the driving duration, a time proportion of the comfort level corresponding to a first group of accelerations in the driving duration is determined, the first group of accelerations being all accelerations corresponding to any comfort level in the plurality of comfort levels; based on the comfort level corresponding to each jerk, the collection time of each jerk, and the driving duration, a time proportion of the comfort level corresponding to a first group of jerks in the driving duration is determined, the first group of jerks being all jerks corresponding to any comfort level in the plurality of comfort levels; and the comfort level in the driving process is evaluated based on the time proportion of the comfort level corresponding to each group of accelerations in the driving duration and the time proportion of the comfort level corresponding to each group of jerks in the driving duration.

[0024] In a second aspect, the present application provides an evaluation device for a comfort level in a driving process, comprising:

[0025] The collection module is configured to collect the jerk and the acceleration of the vehicle in real time during the driving process of the vehicle; the acquisition module is configured to acquire the driving duration of the vehicle, the collection time of each jerk, and the collection time of each acceleration; the first determination module is configured to determine the comfort level corresponding to the jerk at each collection time based on the jerk at each collection time and a plurality of preset jerk thresholds corresponding to a plurality of comfort levels respectively; the second determination module is configured to determine the comfort level corresponding to the acceleration at each collection time based on the acceleration at each collection time and a plurality of preset acceleration thresholds corresponding to the plurality of comfort levels respectively; and the evaluation module is configured to evaluate the comfort level in the driving process based on the comfort level corresponding to each acceleration, the comfort level corresponding to each jerk, the collection time of each acceleration, the collection time of each jerk, and the driving duration.

[0026] In combination with the second aspect, in a first embodiment of the second aspect, the first determination module comprises:

[0027] The determination sub-module is configured to input the jerk at each collection time and each jerk threshold into a first level evaluation algorithm to determine the comfort level corresponding to the jerk at each collection time.

[0028] In a third aspect, the present application provides a computer device, comprising: a memory and a processor, which are connected to each other in communication, the memory is used for storing a computer program, and the computer program is executed by the processor to make the processor execute the method for evaluating the comfort level in the driving process according to any one of the summary.

[0029] In a fourth aspect, the present application provides a computer readable storage medium, which is used for storing computer instructions, and the computer instructions are executed by a processor to realize the method for evaluating the comfort level in the driving process according to any one of the summary. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the specific embodiments or the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0031] Figure 1 The flow chart of the method for evaluating the comfort level in the driving process provided in the embodiments of the present application;

[0032] Figure 2 The time distribution graph of the jerk comfort level in the driving process provided in the embodiments of the present application;

[0033] Figure 3 The flow chart of determining the comfort level corresponding to the acceleration provided in the embodiments of the present application;

[0034] Figure 4 The time distribution graph of the acceleration comfort level in the driving process provided in the embodiments of the present application;

[0035] Figure 5 The device connection diagram of the method for evaluating the comfort level in the driving process provided in the embodiments of the present application;

[0036] Figure 6 The computer device connection diagram provided in the embodiments of the present application. DETAILED DESCRIPTION

[0037] The technical solutions of the present application will be described in detail below with reference to the drawings. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0038] The present application discloses a method for evaluating the comfort level in the driving process, which comprises the following steps:Figure 1 The method specifically comprises the following steps as shown in the figure:

[0039] Step S1: Real-time collection of the jerk and acceleration of the vehicle during vehicle driving.

[0040] Specifically, during vehicle driving, the acceleration of the vehicle can be collected in real time by using a vehicle-mounted digital video recording system or any instrument or tool capable of measuring acceleration, such as an accelerometer. The jerk, which is the rate of change of acceleration with respect to time, can be calculated according to the collected acceleration in real time. After the driving process ends, all the collected acceleration data and all the collected jerk data can be denoised, so that the processed data is more suitable for analysis and calculation.

[0041] Illustratively, after the acceleration data in the time domain and the jerk data in the time domain are obtained, the original data can be processed by using a wavelet filtering algorithm to remove high-frequency signals and extract low-frequency signals. After filtering, the data is more stable and smoother.

[0042] Step S2: Obtain the driving duration of the vehicle, the collection time of each jerk, and the collection time of each acceleration.

[0043] Specifically, during vehicle driving, the collection time of each acceleration is obtained while collecting the acceleration, and the collection time of each jerk is obtained while collecting the jerk. After the vehicle driving ends, the driving duration of the vehicle is obtained.

[0044] Step S3: Determine the comfort level corresponding to the jerk at each collection time based on the jerk at each collection time and the jerk threshold corresponding to each of the preset multiple comfort levels.

[0045] Illustratively, each comfort level corresponds to a jerk threshold. After the jerk data during vehicle driving is obtained, the jerk at each collection time can be compared with the multiple jerk thresholds, such as comparing the jerk at the current time with the multiple jerk thresholds to determine the jerk threshold interval in which the jerk at the current time is located, and determining the comfort level corresponding to the jerk at the current time according to the jerk level corresponding to the jerk threshold interval. The current time can be any of the multiple collection times of the jerk during vehicle driving.

[0046] Illustratively, the comfort level corresponding to the jerk at each collection time can also be obtained according to the jerk data at each collection time, the jerk threshold corresponding to each of the preset multiple comfort levels, and a comfort level prediction algorithm corresponding to the jerk.

[0047] Specifically, the preset acceleration threshold corresponding to each comfort level is obtained by collecting a large amount of test data of vehicle acceleration and comfort feeling in a large number of tests, and analyzing and processing the test data to obtain the acceleration threshold corresponding to each comfort level. The acceleration threshold corresponding to each comfort level obtained in this way reduces the influence of subjective factors, and therefore can be used as a relatively objective reference value.

[0048] Step S4: determining the comfort level corresponding to the acceleration of each collection time based on the acceleration of each collection time and the preset acceleration threshold corresponding to each comfort level.

[0049] Specifically, similar to determining the comfort level of the jerk of each collection time, when determining the comfort level corresponding to the acceleration of each collection time, the acceleration threshold interval in which the acceleration of the current time is located can be determined according to the acceleration of the current time and the acceleration threshold corresponding to each comfort level, and then the comfort level corresponding to the acceleration of the current time is determined according to the comfort level corresponding to the acceleration threshold interval. The current time can be any one of the plurality of collection times of the acceleration during vehicle driving.

[0050] Specifically, when determining the comfort level corresponding to the acceleration of each collection time, the comfort level corresponding to the acceleration of each collection time can also be determined according to the acceleration of the current time, the acceleration threshold corresponding to each comfort level, and further combined with the comfort level prediction algorithm corresponding to the acceleration. The comfort level can have at least three levels, and the higher the level, the lower the comfort, i.e. the less comfortable.

[0051] Step S5: evaluating the comfort level during driving based on the comfort level corresponding to the acceleration of each collection time, the comfort level corresponding to the jerk of each collection time, the collection time of each acceleration, the collection time of each jerk, and the driving time.

[0052] Specifically, after obtaining the comfort level corresponding to the jerk of each collection time and the comfort level corresponding to the acceleration of each collection time, the first discomfort caused by the acceleration and the second discomfort caused by the jerk during the entire driving process can be determined by combining the collection time of each acceleration, the collection time of each jerk, and the driving time, and then the comfort level during vehicle driving is evaluated based on the first discomfort and the second discomfort.

[0053] Since the change range of acceleration and jerk in time domain is an important factor affecting the passenger's ride experience during the vehicle driving, the acceleration and jerk data collected in real time during the vehicle driving are combined with the acceleration threshold and the jerk threshold under each uncomfortable level to determine the comfortable level corresponding to the acceleration at each collection time and the comfortable level corresponding to the jerk at each collection time, so as to quantify the passenger's comfort during the driving. Since the acceleration threshold and the jerk threshold corresponding to each uncomfortable level are the relatively objective reference values obtained in a large number of tests combined with the actual feeling of the passenger's physiology and psychology during the ride, the finally determined comfortable level during the driving is relatively objective and close to the actual feeling of the passenger. Then, based on the comfortable level corresponding to the acceleration at each collection time, the comfortable level corresponding to the jerk at each collection time, the collection time of each acceleration, the collection time of each jerk and the driving time, the comfortable level during the driving is evaluated, which is equivalent to comprehensively evaluating the uncomfortable feeling caused by the jerk and the uncomfortable feeling caused by the acceleration during the whole driving, so as to obtain a relatively objective and accurate result for evaluating the comfortable level during the driving. By using the above technical means, the present application solves the too subjective defect of the comfort evaluation during the driving in the prior art, realizes the quantification of the comfort, and makes the evaluation of the comfort during the vehicle driving more intuitive.

[0054] In an optional embodiment, the comfortable level corresponding to the jerk at each collection time is determined based on the jerk at each collection time and the jerk threshold corresponding to each comfortable level.

[0055] The jerk at each collection time and each jerk threshold are input into the first level evaluation algorithm to determine the comfortable level corresponding to the jerk at each collection time.

[0056] The first level evaluation algorithm is represented by the following formula:

[0057]

[0058] wherein, D jerk represents the comfortable level corresponding to the jerk at the current time, jerk represents the jerk at the current time, the current time is any time during the vehicle driving, jerk i represents the jerk threshold corresponding to the i-th comfortable level, n represents the highest comfortable level, and sgn() represents the sign function.

[0059] Exemplarily, the comfort level and the jerk threshold value are one-to-one corresponding, and in general, the uncomfortable level is at least level 3, i.e., the jerk threshold value is at least 3. When it is needed to determine the comfort level corresponding to the jerk at a certain collection time, the jerk at the collection time and each jerk threshold value are input into the first level evaluation algorithm, and the comfort level corresponding to the jerk at the collection time can be obtained. The higher the comfort level is, the more intense the uncomfortable feeling is. For example, when D jerk = 0, it can be represented that the comfort level at the current time is level 0, and the passenger feels comfortable. When D jerk = 1, it is represented that the comfort level at the current time is level 1, and the passenger feels less comfortable. When D jerk = 2, it is represented that the comfort level at the current time is level 2, and the passenger feels very uncomfortable. The acceleration at each collection time in the driving process is input into the second level evaluation algorithm corresponding to the interval, and the time distribution diagram of the comfort level corresponding to the jerk at each collection time in the driving process can be obtained, as shown in Figure 2 .

[0060] Because the acceleration of different sizes brings different physiological and psychological feelings. For example, when the acceleration is small, although there is some discomfort in physiology, there is no psychological discomfort, but when the acceleration is too large, there is obvious discomfort in physiology, and because the acceleration is too large, it will cause anxiety and panic in psychology, and this psychological discomfort will also reflect in physiology, so that the physiological discomfort will be intensified. Therefore, the acceleration can be divided into intervals according to the size of the acceleration. And in each acceleration interval, the corresponding comfort level is set according to the critical point where the obvious comfort changes, and the acceleration threshold value matched with the comfort level is obtained.

[0061] Therefore, in an optional embodiment, the comfort level corresponding to the acceleration at each collection time is determined based on the acceleration at each collection time and the acceleration threshold value corresponding to the preset multiple comfort levels, and the specific determination steps are shown in Figure 3 , and include:

[0062] Step S31: determining the acceleration interval in which the acceleration at each collection time is located, and obtaining all acceleration threshold values in the interval; wherein the acceleration interval includes multiple comfort levels, and each comfort level corresponds to an acceleration threshold value.

[0063] Step S32: determining the second level evaluation algorithm corresponding to the acceleration interval according to the acceleration interval in which the first collection time is located; wherein the first collection time is any collection time in the time when the acceleration is collected in the driving time of the vehicle.

[0064] Step S33: input the acceleration at the first collection time and the acceleration threshold corresponding to the multiple comfort levels included in the acceleration interval into the second level evaluation algorithm, to obtain the comfort level corresponding to the acceleration at the first collection time.

[0065] Specifically, when the output result is D a =0, it indicates that the comfort level at the current time is level 0, and the passenger feels comfortable. When the output result is D a =1, it indicates that the comfort level at the current time is level 1, and the passenger feels less comfortable. When the output result is D a =2, it indicates that the comfort level at the current time is level 2, and the passenger feels very uncomfortable.

[0066] In an optional embodiment, the acceleration interval includes a first acceleration interval, a second acceleration interval, and a third acceleration interval.

[0067] The second level evaluation algorithm corresponding to the first acceleration interval is represented by the following formula:

[0068]

[0069] The second level evaluation algorithm corresponding to the second acceleration interval is represented by the following formula:

[0070]

[0071] The second level evaluation algorithm corresponding to the third acceleration interval is represented by the following formula:

[0072]

[0073] wherein, D a represents the comfort level corresponding to the acceleration at the current time, a represents the acceleration at the current time, the current time is any time during the vehicle driving process, a 1i represents the acceleration threshold corresponding to the i-th comfort level in the first acceleration interval, a 2i represents the acceleration threshold corresponding to the i-th comfort level in the second acceleration interval, a 3i represents the acceleration threshold corresponding to the i-th comfort level in the third acceleration interval, n represents the highest level of the comfort level, and sgn() represents the sign function.

[0074] Exemplarily, according to a large number of tests, it is generally considered that the first acceleration interval is (0, 40], the first acceleration interval is (40, 80], and the first acceleration interval is (80, 120], with the unit of km / h 2 .

[0075] The acceleration of each collection time and the acceleration threshold value of the corresponding interval are input into the second level evaluation algorithm of the corresponding interval, so that the comfort level corresponding to the acceleration of each collection time in the driving process can be obtained. As shown in Figure 4 The time distribution of the acceleration comfort level in the driving process is an embodiment.

[0076] In an optional embodiment, based on the comfort level corresponding to the acceleration of each collection time, the comfort level corresponding to the jerk of each collection time, the collection time of each acceleration, the collection time of each jerk, and the driving time, the comfort level in the driving process is evaluated, including:

[0077] Based on the comfort level corresponding to each acceleration, the collection time of each acceleration, and the driving time, the time proportion of the comfort level corresponding to the first group of accelerations in the driving time is determined, and the first group of accelerations is all accelerations corresponding to any comfort level in the plurality of comfort levels. Based on the comfort level corresponding to each jerk, the collection time of each jerk, and the driving time, the time proportion of the comfort level corresponding to the first group of jerks in the driving time is determined, and the first group of jerks is all jerks corresponding to any comfort level in the plurality of comfort levels. Based on the time proportion of each group of accelerations in the driving time and the time proportion of each group of jerks in the driving time, the comfort level in the driving process is evaluated.

[0078] Client Case Number

[0079] Exemplarily, first, the first group of accelerations in the first comfort level is determined according to the comfort level corresponding to the acceleration of each collection time; and the collection time corresponding to each acceleration in the first group of accelerations is obtained, and based on the collection time corresponding to each acceleration in the first group of accelerations, the time length of the comfort level in the first comfort level in the driving process is determined; and the time proportion of the first comfort level corresponding to the first group of accelerations in the driving process is determined according to the time length and the driving time. The first comfort level is any one of all comfort levels, and the first group of accelerations is composed of all accelerations in the first comfort level. In this way, the time proportion corresponding to each comfort level in the driving time can be obtained. The implementation mode of the time proportion of each comfort level is as follows:

[0080]

[0081] η a，i represents the time proportion of the acceleration comfort level in the driving process, t represents the driving time, and t leve1i represents the time length of the acceleration comfort level in the driving process.

[0082] Secondly, based on the comfort level corresponding to the jerkiness at each data collection moment, a first group of jerkiness levels at the first comfort level is determined. The data collection moment corresponding to each jerkiness level in the first group is then obtained. Based on the data collection moment corresponding to each jerkiness level in the first group, the duration of the jerkiness comfort level at the first comfort level during driving is determined. Based on this duration and the driving time, the proportion of time occupied by the first comfort level corresponding to the first group of jerkiness levels during driving is determined. Here, the first comfort level is any one of all comfort levels, and the first group of jerkiness levels consists of all jerkiness levels at the first comfort level. In this way, the time proportion corresponding to each comfort level in the driving time can be obtained. The specific implementation method of the time proportion of each comfort level is as follows:

[0083]

[0084] Where, η jerk，j This indicates the percentage of time the vehicle's ride comfort level is set to Level 1 during driving, where t represents the driving duration. levelj This indicates the duration of the vehicle's driving experience when the dynamism comfort level is j.

[0085] Finally, the comfort index is determined based on the time proportion of the comfort level corresponding to each set of accelerations and the time proportion of the comfort level corresponding to each set of jerkiness during the driving time. The comfort level during the driving process is evaluated based on the interval in which the comfort index is located. The comfort level corresponds one-to-one with the comfort index interval, and the comfort index interval is divided based on the results of a large number of tests.

[0086]

[0087] Among them, P η For comfort index, k i For η a，i The weight of (the percentage of time spent at acceleration comfort level 1), k j For η jerk，j The weight of η (the percentage of time spent at the comfort level of urgency). a，i η represents the percentage of time during vehicle operation when the acceleration comfort level is at level 1. jerk，j c1 represents the percentage of time the vehicle is in the highest speed comfort level during driving, c2 represents the overall weight of the acceleration comfort level percentage, and c3 represents the overall weight of the dynamism comfort level percentage.

[0088] This invention discloses a device for evaluating comfort levels during driving, such as... Figure 5 As shown, the device specifically includes the following modules:

[0089] The collection module 51 is configured to collect the jerk and the acceleration of the vehicle in real time during the driving of the vehicle.

[0090] The acquisition module 52 is configured to acquire a driving duration of the vehicle, a collection time of each jerk, and a collection time of each acceleration.

[0091] The first determination module 53 is configured to determine a comfort level corresponding to the jerk at each collection time based on the jerk at each collection time and a preset jerk threshold corresponding to each comfort level.

[0092] The second determination module 54 is configured to determine a comfort level corresponding to the acceleration at each collection time based on the acceleration at each collection time and a preset acceleration threshold corresponding to each comfort level.

[0093] The evaluation module 55 is configured to evaluate the comfort level during the driving based on the comfort level corresponding to the acceleration at each collection time, the comfort level corresponding to the jerk at each collection time, the collection time of each acceleration, the collection time of each jerk, and the driving duration.

[0094] In an optional embodiment, the first determination module 53 comprises:

[0095] The determination sub-module 531 is configured to input the jerk at each collection time and each jerk threshold into a first level evaluation algorithm to determine the comfort level corresponding to the jerk at each collection time.

[0096] In an optional embodiment, the determination sub-module 531 is configured to implement the following formula:

[0097]

[0098] wherein, D jerk represents the comfort level corresponding to the jerk at the current time, jerk represents the jerk at the current time, the current time is any time during the driving of the vehicle, jerk i represents the jerk threshold corresponding to the i-th comfort level, n represents the highest comfort level, and sgn() represents a sign function.

[0099] In an optional embodiment, the second determination module 54 comprises:

[0100] The first determining sub-module 541 is configured to determine an acceleration interval corresponding to the acceleration at each collection time point, wherein the acceleration interval comprises a plurality of comfort levels, and each comfort level corresponds to an acceleration threshold value; the second determining sub-module 542 is configured to determine a second level evaluation algorithm corresponding to the acceleration interval according to the acceleration interval in which the acceleration at the first collection time point is located; the acquisition sub-module 543 is configured to input the acceleration at the first collection time point and the acceleration threshold values corresponding to the plurality of comfort levels comprised in the acceleration interval into the second level evaluation algorithm to obtain a comfort level corresponding to the acceleration at the first collection time point, wherein the first collection time point is any one of the time points at which the acceleration is collected in the driving duration of the vehicle.

[0101] In an optional embodiment, the second determining sub-module 542 is configured to implement the second level evaluation algorithm corresponding to the first acceleration interval, which is represented by the following formula:

[0102]

[0103] Alternatively, the second determining sub-module 542 is configured to implement the second level evaluation algorithm corresponding to the second acceleration interval, which is represented by the following formula:

[0104]

[0105] Alternatively, the second determining sub-module 542 is configured to implement the second level evaluation algorithm corresponding to the third acceleration interval, which is represented by the following formula:

[0106]

[0107] wherein D a represents the comfort level corresponding to the acceleration at the current time point, a represents the acceleration at the current time point, the current time point is any time point in the driving process of the vehicle, a 1i represents the acceleration threshold value corresponding to the first comfort level in the first acceleration interval, a 2i represents the acceleration threshold value corresponding to the i-th comfort level in the second acceleration interval, a 3i represents the acceleration threshold value corresponding to the i-th comfort level in the third acceleration interval, n represents the highest level of the comfort level, and sgn() represents a sign function.

[0108] In an optional embodiment, the evaluation module 55 comprises:

[0109] The first determining sub-module 551 is configured to determine a time proportion of the comfort level corresponding to the first set of accelerations in the driving time length based on the comfort level corresponding to each acceleration, the collection time of each acceleration and the driving time length, the first set of accelerations being all accelerations corresponding to any comfort level in the plurality of comfort levels.

[0110] The embodiment provides a computer device, as shown in the figure, which can include at least one processor 61, at least one communication interface 62, at least one communication bus 63 and at least one memory 64. Figure 6 The communication interface 62 can include a display, a keyboard, and can further include a standard wired interface and a wireless interface. The memory 64 can be a high-speed RAM memory, and can also be a non-volatile memory such as at least one disk memory. The memory 64 can also be at least one storage device located away from the aforementioned processor 61. The processor 61 can be combined with the apparatus described in the description, the memory 64 stores an application program, and the processor 61 invokes the program code stored in the memory 64 to execute the driving process comfort level evaluation method of any method embodiment described above. Figure 6

[0111] The communication bus 63 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The communication bus 63 can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 6 only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0112] ​The memory 64 can include a volatile memory, such as a random-access memory (RAM), and / or can include a non-volatile memory, such as a flash memory, a hard disk drive (HDD), or a solid-state drive (SSD). The memory 64 can also include a combination of the above-mentioned types of memories.

[0113] The processor 61 can be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and an NP.

[0114] The processor 61 can further include a hardware chip. The hardware chip can be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof. The memory 64 can also be configured to store program instructions. The processor 61 can invoke the program instructions to implement the method for evaluating a comfort level during driving according to any of the embodiments of the present application.

[0115] The embodiment provides a computer readable storage medium, and the computer storage medium stores computer executable instructions. The computer executable instructions can execute the driving comfort level evaluation method in any method embodiment. The storage medium can be a disk, an optical disk, a read-only memory (ROM), a random access memory (RAM), a flash memory, a hard disk drive (HDD) or a solid-state drive (SSD), etc. The storage medium can also include a combination of the above-mentioned types of memories.

[0116] Obviously, the above embodiments are only examples for clearly illustrating, but not limitation on the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments do not need to be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A method of evaluating a comfort level during driving, characterized by, The method comprises: collecting the jerk and acceleration of the vehicle in real time during the driving of the vehicle; obtaining the driving duration of the vehicle, the collection time of each jerk and the collection time of each acceleration; determining the comfort level corresponding to the jerk at each collection time based on the jerk at each collection time and the jerk threshold corresponding to each preset comfort level; determining the comfort level corresponding to the acceleration at each collection time based on the acceleration at each collection time and the acceleration threshold corresponding to each preset comfort level; evaluating the comfort level during the driving based on the comfort level corresponding to the acceleration at each collection time, the comfort level corresponding to the jerk at each collection time, the collection time of each acceleration, the collection time of each jerk and the driving duration; the method for determining the comfort level corresponding to the jerk at each collection time based on the jerk at each collection time and the jerk threshold corresponding to each preset comfort level comprises: inputting the jerk at each collection time and each jerk threshold into a first level evaluation algorithm to determine the comfort level corresponding to the jerk at each collection time; the method for evaluating the comfort level during the driving based on the comfort level corresponding to the acceleration at each collection time, the comfort level corresponding to the jerk at each collection time, the collection time of each acceleration, the collection time of each jerk and the driving duration comprises: determining the time proportion of the comfort level corresponding to the first group of accelerations in the driving duration based on the comfort level corresponding to each acceleration, the collection time of each acceleration and the driving duration, wherein the first group of accelerations is all the accelerations corresponding to any comfort level in the plurality of comfort levels; determining the time proportion of the comfort level corresponding to the first group of jerks in the driving duration based on the comfort level corresponding to each jerk, the collection time of each jerk and the driving duration, wherein the first group of jerks is all the jerks corresponding to any comfort level in the plurality of comfort levels; evaluating the comfort level during the driving based on the time proportion of the comfort level corresponding to each group of accelerations in the driving duration and the time proportion of the comfort level corresponding to each group of jerks in the driving duration.

2. The method of claim 1, wherein the first level evaluation algorithm is represented by the following formula: wherein, represents a comfort level corresponding to the jerk at the current time, represents the jerk at the current time, the current time being any time during the vehicle travel, represents a jerk threshold value corresponding to the i-th comfort level, represents the highest comfort level, represents a sign function.

3. Method for evaluating the comfort level during driving according to any one of claims 1-2, characterized in that, the method for determining the comfort level corresponding to the acceleration at each collection time based on the acceleration at each collection time and the acceleration threshold corresponding to each preset comfort level comprises: determining the acceleration interval corresponding to the acceleration at each collection time, wherein the acceleration interval comprises a plurality of comfort levels, and each comfort level corresponds to an acceleration threshold; determining the second level evaluation algorithm corresponding to the acceleration interval according to the acceleration interval in which the acceleration at the first collection time is located. input the acceleration of the first collection time and acceleration thresholds corresponding to a plurality of comfort levels included in the acceleration interval into the second level evaluation algorithm to obtain a comfort level corresponding to the acceleration of the first collection time, wherein the first collection time is any collection time of the acceleration in the driving duration of the vehicle.

4. The method of evaluating a comfort level during driving according to claim 3, characterized by, The acceleration interval includes a first acceleration interval, a second acceleration interval, and a third acceleration interval. The second level evaluation algorithm corresponding to the first acceleration interval is represented by the following formula: The second level evaluation algorithm corresponding to the second acceleration interval is represented by the following formula: The second level evaluation algorithm corresponding to the third acceleration interval is represented by the following formula: wherein, represents a comfort level corresponding to the acceleration at the current time, represents the acceleration at the current time collected in the driving process, the current time being any time in the driving process of the vehicle, represents the first acceleration interval in the first acceleration interval, represents the acceleration threshold value corresponding to the comfort level, represents the first acceleration interval in the second acceleration interval, represents the acceleration threshold value corresponding to the comfort level, represents the first acceleration interval in the third acceleration interval, represents the acceleration threshold value corresponding to the comfort level, represents the highest level of the comfort level, represents a sign function.

5. A device for evaluating comfort levels during driving, characterized in that, Comprising: The acquisition module is configured to acquire the jerk and acceleration of the vehicle in real time during the driving of the vehicle. The acquisition module is configured to acquire the driving duration of the vehicle, the collection time of each jerk, and the collection time of each acceleration. The first determination module is configured to determine a comfort level corresponding to the jerk of each collection time based on the jerk of each collection time and jerk thresholds corresponding to a plurality of preset comfort levels. The second determination module is configured to determine a comfort level corresponding to the acceleration of each collection time based on the acceleration of each collection time and acceleration thresholds corresponding to a plurality of preset comfort levels. The evaluation module is configured to evaluate the comfort level during driving based on the comfort level corresponding to the acceleration of each collection time, the comfort level corresponding to the jerk of each collection time, the collection time of each acceleration, the collection time of each jerk, and the driving duration. The first determination module includes a determination submodule configured to input the jerk of each collection time and each jerk threshold into a first level evaluation algorithm to determine a comfort level corresponding to the jerk of each collection time. The evaluation module is specifically configured to determine a time proportion of a comfort level corresponding to a first group of accelerations in the driving duration based on the comfort level corresponding to each acceleration, the collection time of each acceleration, and the driving duration, the first group of accelerations being all accelerations corresponding to any comfort level in a plurality of comfort levels; determine a time proportion of a comfort level corresponding to a first group of jerks in the driving duration based on the comfort level corresponding to each jerk, the collection time of each jerk, and the driving duration, the first group of jerks being all jerks corresponding to any comfort level in a plurality of comfort levels; and evaluate the comfort level during driving based on the time proportion of each group of accelerations in the driving duration and the time proportion of each group of jerks in the driving duration.

6. A computer device, comprising: Comprising: A memory and a processor, which are connected in communication with each other, the memory is configured to store a computer program, and the computer program is configured to be executed by the processor to enable the processor to perform the method for evaluating the comfort level during driving according to any one of claims 1 to 4.

7. A computer readable storage medium characterized in that, The computer readable storage medium is configured to store computer instructions, and the computer instructions are configured to be executed by the processor to implement the method for evaluating the comfort level during driving according to any one of claims 1 to 4.

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