CN117109941A

CN117109941A - Vehicle testing method and device, electronic equipment and storage medium

Info

Publication number: CN117109941A
Application number: CN202311079203.XA
Authority: CN
Inventors: 刘小钦; 孙昊; 张俨; 运伟国; 刘畅; 赵晓东
Original assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Remote Commercial Vehicle R&D Co Ltd; Zhejiang Geely Remote New Energy Commercial Vehicle Group Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Remote Commercial Vehicle R&D Co Ltd; Zhejiang Geely Remote New Energy Commercial Vehicle Group Co Ltd
Priority date: 2023-08-24
Filing date: 2023-08-24
Publication date: 2023-11-24

Abstract

The application provides a vehicle testing method, a device, electronic equipment and a storage medium, wherein the method comprises the following steps: obtaining road spectrum information of a test road section and an initial speed of a vehicle to be tested; the road spectrum information of the test road section is acquired from the actual road section; controlling the vehicle to be tested to run according to the initial speed of the vehicle to be tested; obtaining a test case based on road spectrum information of the test road section; and transmitting the test cases to the vehicle to be tested so that the vehicle to be tested can be tested according to the test cases. According to the scheme, the accuracy of vehicle testing is improved.

Description

Vehicle testing method and device, electronic equipment and storage medium

Technical Field

The present application relates to vehicle testing technologies, and in particular, to a vehicle testing method, device, electronic apparatus, and storage medium.

Background

With the rapid development of unmanned technology, a predictive cruise (Predictive Cruise Control, abbreviated as PCC) system is widely used in unmanned automobiles. The predictive cruising system can utilize the sensors on the vehicle and the navigation map to calculate, judge possible danger for the driver in advance, and ensure the driving safety.

In practical applications, in order to ensure normal use of the vehicle, the predictive cruise system of the vehicle needs to be tested before the vehicle leaves the factory. In some prior art, the simulated road spectrum information is adopted to test the predictive cruising system of the vehicle, the test process has great difference from the vehicle running on the actual road, and the accuracy of the vehicle test is lower.

Disclosure of Invention

The application provides a vehicle testing method, a device, electronic equipment and a storage medium, and aims to solve the problem of low accuracy of vehicle testing.

In a first aspect, the present application provides a vehicle testing method, comprising: obtaining road spectrum information of a test road section and an initial speed of a vehicle to be tested; the road spectrum information of the test road section is acquired from an actual road section; controlling a vehicle to be tested to run according to the initial speed of the vehicle to be tested; obtaining a test case based on the road spectrum information of the test road section; and transmitting the test case to the vehicle to be tested so that the vehicle to be tested can be tested according to the test case.

In some possible embodiments, before the controlling the vehicle to be tested to operate according to the initial speed of the vehicle to be tested, the method further includes: inputting the road spectrum information of the test road section into a GPS positioning simulator; the obtaining the test case based on the road spectrum information of the test road section specifically comprises the following steps: acquiring the speed of the vehicle to be detected at regular time, and inputting the acquired speed of the vehicle to be detected into the GPS positioning simulator; acquiring GPS positioning information output by the GPS positioning simulator, wherein the GPS positioning information is calculated by the GPS positioning simulator based on road spectrum information of the test road section and the acquired speed of the vehicle to be tested; and taking the GPS positioning information as the current test case.

In some possible embodiments, before the controlling the vehicle to be tested to operate according to the initial speed of the vehicle to be tested, the method further includes: inputting the road spectrum information of the test road section into a rotary drum test device; after the GPS positioning information output by the GPS positioning simulator is obtained, the method further includes: and transmitting the GPS positioning information to a rotary drum test device to control the rotary drum test device, and determining the gradient of a rotary drum in the rotary drum test device according to the GPS positioning information and the road spectrum information of the test road section.

In some possible implementations, after the transmitting the test case to the vehicle under test so that the vehicle under test tests according to the test case, the method further includes: when a data acquisition period arrives, acquiring test data of the vehicle to be tested, wherein the test data comprises torque and gears; and evaluating the test data of the vehicle to be tested, which are acquired and obtained in each acquisition period, based on a preset test standard.

In some possible embodiments, before the obtaining the road spectrum information of the test road section and the initial speed of the vehicle to be tested, the method further includes: setting the initial speed of the vehicle to be tested as a first speed, a second speed and a third speed respectively; the load of the vehicle to be tested is set respectively, and the load comprises: no load, half load and full load; after the test case is transmitted to the vehicle to be tested so that the vehicle to be tested tests according to the test case, the method further comprises the following steps: collecting the driving mileage of the vehicle to be tested and the oil and electricity consumption of the vehicle to be tested in the whole test process; and calculating and obtaining the energy saving rate of the vehicle to be tested based on the driving mileage of the vehicle to be tested and the oil electricity quantity consumed by the vehicle to be tested.

In a first aspect, the present application provides a vehicle testing apparatus comprising: the acquisition module is used for acquiring road spectrum information of the test road section and the initial speed of the vehicle to be tested; the road spectrum information of the test road section is acquired from an actual road section; the control module is used for controlling the vehicle to be tested to run according to the initial speed of the vehicle to be tested; the processing module is used for obtaining a test case based on the road spectrum information of the test road section; and the transmission module is used for transmitting the test case to the vehicle to be tested so that the vehicle to be tested can be tested according to the test case.

In some possible embodiments, the apparatus further comprises: the input module is used for inputting the road spectrum information of the test road section into the GPS positioning simulator; the processing module is specifically configured to: acquiring the speed of the vehicle to be detected at regular time, and inputting the acquired speed of the vehicle to be detected into the GPS positioning simulator; acquiring GPS positioning information output by the GPS positioning simulator, wherein the GPS positioning information is calculated by the GPS positioning simulator based on road spectrum information of the test road section and the acquired speed of the vehicle to be tested; and taking the GPS positioning information as the current test case.

In some possible implementations, the input module is further configured to: inputting the road spectrum information of the test road section into a rotary drum test device; the transmission module is further configured to: and transmitting the GPS positioning information to a rotary drum test device to control the rotary drum test device, and determining the gradient of a rotary drum in the rotary drum test device according to the GPS positioning information and the road spectrum information of the test road section.

In some possible embodiments, the apparatus further comprises: the first acquisition module is used for acquiring test data of the vehicle to be tested when a data acquisition period arrives, wherein the test data comprises torque and gears; and the evaluation module is used for evaluating the test data of the vehicle to be tested, which are acquired and obtained in each acquisition period, based on a preset test standard.

In some possible embodiments, the apparatus further comprises: the first setting module is used for setting the initial vehicle speed of the vehicle to be tested as a first vehicle speed, a second vehicle speed and a third vehicle speed respectively; the second setting module is used for setting the load of the vehicle to be tested as no-load, half-load and full-load respectively; the second acquisition module is used for acquiring the driving mileage of the vehicle to be tested and the oil electricity consumed by the vehicle to be tested in the whole test process; the calculation module is used for calculating and obtaining the energy saving rate of the vehicle to be tested based on the driving mileage of the vehicle to be tested and the oil electricity quantity consumed by the vehicle to be tested.

In a third aspect, the present application provides an electronic device comprising: a processor, and a memory communicatively coupled to the processor; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory to implement the method as described above.

In a fourth aspect, the application provides a computer readable storage medium having stored therein computer executable instructions which when executed by a processor are for carrying out the method as described above.

In the vehicle testing method, the device, the electronic equipment and the storage medium provided by the application, road spectrum information of a tested road section and the initial speed of a vehicle to be tested are obtained; the road spectrum information of the test road section is acquired from the actual road section; controlling the vehicle to be tested to run according to the initial speed of the vehicle to be tested; obtaining a test case based on road spectrum information of the test road section; and transmitting the test cases to the vehicle to be tested so that the vehicle to be tested can be tested according to the test cases. According to the scheme, the road spectrum information of the test road section is acquired from the actual road section, the test case is acquired based on the road spectrum information of the test road section in the vehicle test process, and the vehicle to be tested is tested, so that the vehicle test process is closer to the process of running the vehicle to be tested on the actual road, and the accuracy of vehicle test is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

Fig. 1 is a schematic flow chart of a vehicle testing method according to a first embodiment of the present application;

FIG. 2 is a flow chart of another vehicle testing method according to a first embodiment of the present application;

fig. 3 is a flow chart of a vehicle testing method according to a second embodiment of the application;

fig. 4 is a schematic diagram of a vehicle testing architecture according to a second embodiment of the present application;

fig. 5 is a schematic structural diagram of a vehicle testing device according to a fourth embodiment of the present application;

fig. 6 is a schematic structural diagram of an electronic device according to a fifth embodiment of the present application.

Specific embodiments of the present application have been shown by way of the above drawings and will be described in more detail below. The drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but rather to illustrate the inventive concepts to those skilled in the art by reference to the specific embodiments.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.

It should be noted that the brief description of the terminology in the present application is for the purpose of facilitating understanding of the embodiments described below only and is not intended to limit the embodiments of the present application. Unless otherwise indicated, these terms should be construed in their ordinary and customary meaning.

The terms first, second and the like in the description and in the claims and in the above-described figures are used for distinguishing between similar or similar objects or entities and not necessarily for describing a particular sequential or chronological order, unless otherwise indicated (Unless otherwise indicated). It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

Furthermore, the terms "comprise" and "have," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to those elements expressly listed, but may include other elements not expressly listed or inherent to such product or apparatus. The term "module" as used in this disclosure refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the function associated with that element.

The term "Road spectrum" as used in the various embodiments of the present application refers to the Road surface spectrum (Road spectrum) of a Road, which is a power spectral density curve of Road surface irregularities. The road surface unevenness as the vibration input of the automobile is mainly characterized by adopting displacement power spectral density to describe the statistical characteristics, and the time course of the road surface unevenness can be treated as a smooth random process. In short, road spectrum represents actual relief unevenness information of a road surface, such as road gradient, road flatness, and the like.

With the rapid development of unmanned technology, a predictive cruise (PCC) system is widely used in unmanned automobiles. The predictive cruise system can acquire front road information by using a sensor and a navigation map on the vehicle, and coordinate and control an engine and a gearbox according to the front road information, so that the advanced cruise system for controlling the running speed of the vehicle can effectively relieve driving fatigue and save oil.

In the embodiment of the application, the road spectrum information of the test road section is acquired from the actual road section, and the test case is acquired based on the road spectrum information of the test road section in the vehicle test process, so that the vehicle test process is closer to the process of running the vehicle to be tested on the actual road, and the accuracy of the vehicle test can be effectively improved.

The technical scheme of the present application and the technical scheme of the present application will be described in detail with specific examples. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. In describing the present application, the terms should be construed broadly in the art unless explicitly stated and limited otherwise. Embodiments of the present application will be described below with reference to the accompanying drawings.

Example 1

Fig. 1 is a flow chart of a vehicle testing method according to a first embodiment of the present application, as shown in fig. 1, the method includes the following steps:

step 101, obtaining road spectrum information of a test road section and an initial speed of a vehicle to be tested; the road spectrum information of the test road section is acquired from the actual road section;

102, controlling a vehicle to be tested to run according to the initial speed of the vehicle to be tested;

step 103, obtaining a test case based on the road spectrum information of the test road section;

and 104, transmitting the test cases to the vehicle to be tested so that the vehicle to be tested can be tested according to the test cases.

In practical applications, the execution body of the order processing method may be a vehicle testing device, and various implementation manners of the vehicle testing device may be realized, for example, by a computer program, for example, application software, etc.; or, for example, a chip or the like. The computer program can also be realized as a medium storing a related computer program, such as a USB flash disk, a cloud disk, etc.; still alternatively, it may be implemented by a physical device, such as a server, etc., integrated with or installed with the relevant computer program.

In this embodiment, the test road section is an actual road section selected according to a vehicle test standard, the test road section covers various road types commonly used in vehicle test, and road spectrum information of the test road section is acquired on the test road section. As an example, a road section satisfying the following criteria is taken as a test road section: expressway/national road route is not lower than 90% and map data covered road; the road should comprise 67% of road segments with a gradient of-1%, 28% of road segments with a gradient of-2% -1% and 1% -2%, and 5% of road segments with a gradient of less than-2% and greater than 2%; the one-way length of the road is not less than 100km and not more than 500km.

The initial speed of the vehicle to be tested is the initial speed of the vehicle to be tested entering the test road section. Specifically, in step 102, the vehicle to be tested is controlled to run according to the initial speed of the vehicle to be tested, and preparation for vehicle testing can be made. In the vehicle test process, the position of the vehicle to be tested on the test road section is continuously changed, the road conditions of different positions on the test road section are different, and the predictive cruise system in the vehicle to be tested can control the torque, gear, speed and the like of the vehicle to be tested based on the position of the vehicle to be tested.

Therefore, in the test process, the positioning information can be used as a test case to test the vehicle to be tested. Specifically, in the test process, the speed of the vehicle to be tested can be collected at fixed time, and the positioning information of the vehicle to be tested is determined based on the collected speed of the vehicle to be tested and the road spectrum information of the test road section. Transmitting the positioning information as a test case to the vehicle to be tested, so that the vehicle to be tested updates the torque, gear and speed of the vehicle to be tested according to the positioning information. It can be appreciated that in the vehicle testing method in this embodiment, a closed loop of the vehicle test is realized.

In practical application, the vehicle to be tested comprises an ADAS map module, a navigation module and a cruise prediction module. Specifically, in step 104, the test case is transmitted to the vehicle to be tested, so that the vehicle to be tested tests according to the test case, including: transmitting the positioning information to an ADAS map module, so that the ADAS map module determines road information, such as road gradient, flatness, crossing number and the like, within a preset range of the positioning information of the vehicle to be detected based on the positioning information of the vehicle to be detected; and transmitting the positioning information to the navigation module so that the navigation module can acquire road condition information in a preset range, such as traffic flow, number of passengers and the like in a road, based on the positioning information of the vehicle to be detected. And transmitting the road information and the road condition information within the preset range to the predictive cruising module, so that the predictive cruising module controls the torque, the gear and the speed of the vehicle to be tested based on the road information and the road condition information within the preset range.

It can be understood that the road spectrum information of the test road section is acquired from the actual road section, and in the vehicle test process, the test case is acquired based on the road spectrum information of the test road section, so that the vehicle to be tested is tested based on the test case, the vehicle test process is closer to the process that the vehicle to be tested runs on the actual road, and the accuracy of the vehicle test can be effectively improved.

Optionally, in an example, fig. 2 is a schematic flow chart of another vehicle testing method according to the first embodiment of the present application, as shown in fig. 2, after step 104, the method further includes:

step 201, when a data acquisition period comes, acquiring test data of a vehicle to be tested, wherein the test data comprises torque and gears;

step 202, evaluating the test data of the vehicle to be tested acquired in each acquisition period based on a preset test standard.

In combination with the above examples, a predictive cruise system in a vehicle under test may control torque, gear, speed, etc. of the vehicle under test based on the position of the vehicle under test. Therefore, the evaluation of the predictive cruise system in the vehicle under test can be achieved by evaluating the torque and gear during the test.

In one example, the preset test criteria corresponds to the acquisition cycles, and the preset test criteria include standard values of torque and gear under each acquisition cycle. Specifically, in step 202, based on a preset test standard, test data of the vehicle to be tested acquired in each acquisition period is evaluated, including: and for each acquisition period, acquiring the standard value of the torque and the gear corresponding to the acquisition period, comparing the torque and the gear acquired by the acquisition period with the standard value of the torque and the gear corresponding to the acquisition period, and evaluating the accuracy of the torque and the gear acquired by the acquisition period.

Optionally, the preset test standard corresponds to a position in the test road section. The preset test standard comprises standard values of torque and gears corresponding to all positions on the test road section. Specifically, in step 202, based on a preset test standard, test data of the vehicle to be tested acquired in each acquisition period is evaluated, including: and for each acquisition period, acquiring the position of the vehicle to be tested in the test road section in the acquisition period, determining the standard value of the torque and the gear corresponding to the acquisition period based on the position of the vehicle to be tested in the test road section in the acquisition period, comparing the torque and the gear acquired in the acquisition period with the standard value of the torque and the gear corresponding to the acquisition period, and evaluating the accuracy of the torque and the gear acquired in the acquisition period.

Optionally, a difference value between the test data of the vehicle to be tested and a preset test standard may be calculated, and when the difference value is smaller than a first threshold value, the vehicle to be tested is evaluated to be qualified in the function of predicting cruising. In practical application, after the test data of the vehicle to be tested acquired in each acquisition period are evaluated based on a preset test standard, the vehicle to be tested or a vehicle test device can be adjusted based on the evaluation result, so that the accuracy of vehicle test is further improved.

In the example, when the data acquisition period arrives in the test process, the torque and the gear of the vehicle to be tested are acquired, the test data of the vehicle to be tested acquired in each acquisition period are evaluated based on the preset test standard, the evaluation of the predictive cruising function of the vehicle can be realized, and the accuracy of the vehicle test is improved.

In practical applications, the performance of the vehicle may be tested simultaneously with the functional test of the vehicle, and optionally, before step 101, the method further includes:

setting the initial speed of the vehicle to be tested as a first speed, a second speed and a third speed respectively;

Load of the vehicle to be tested is set respectively, and the load comprises: no load, half load and full load;

after the step 104, the method further includes:

collecting the driving mileage of the vehicle to be tested and the oil electricity consumed by the vehicle to be tested in the whole test process;

and calculating and obtaining the energy saving rate of the vehicle to be tested based on the driving mileage of the vehicle to be tested and the oil electricity quantity consumed by the vehicle to be tested.

In this example, in order to more comprehensively test the vehicle, different starting vehicle speeds and loads can be set for testing the vehicle to be tested. The first vehicle speed, the second vehicle speed and the third vehicle speed may be initial vehicle speeds which are commonly used in daily driving of the vehicle, and it should be noted that a greater number of different vehicle speeds may be set as initial vehicle speeds to test the vehicle, which is not limited herein.

It can be understood that for each initial vehicle speed, different vehicle loads need to be set for testing the vehicle to be tested, for example, the initial vehicle speed of the vehicle to be tested is set to be a first vehicle speed, the load of the vehicle to be tested is set to be no-load, half-load and full-load, and three vehicle tests are performed. It should be noted that, a greater number of loads of the vehicles to be tested may be set, and the vehicles may be tested, which is not limited herein.

Specifically, after setting the initial speed of the vehicle to be tested and the load of the vehicle to be tested, executing steps 101 to 104 to test the vehicle to be tested, and collecting the driving mileage of the vehicle to be tested and the oil and electricity consumption of the vehicle to be tested in the whole test process after the vehicle test is finished.

The method comprises the steps of setting an initial speed and a load of a vehicle to be tested, testing the vehicle to be tested by adopting a driver driving mode, a constant-speed cruising mode and a predictive cruising mode for the vehicle to be tested, and collecting the driving mileage of the vehicle to be tested and the oil and electricity consumption of the vehicle to be tested in the whole testing process under the three modes after the vehicle testing is finished. And calculating the energy saving rate of the vehicle to be tested in the predictive cruising mode compared with the driving mode of the driver and the constant speed cruising mode.

By combining the above examples, the testing process of the vehicle to be tested can test the function of the predictive cruise system in the vehicle to be tested, in this example, the energy saving rate of the vehicle to be tested is calculated through the driving mileage of the vehicle to be tested and the oil electricity consumed by the vehicle to be tested in the whole testing process, the performance of the vehicle to be tested can be tested, and the influence relationship between the function test and the performance test of the vehicle to be tested is considered, so that the test of the vehicle is more comprehensively realized.

In the example, different initial vehicle speeds and loads are set for the vehicle to be tested, the vehicle to be tested is tested, the driving mileage of the vehicle to be tested and the oil electricity quantity consumed by the vehicle to be tested in the whole testing process are collected, the energy saving rate of the vehicle to be tested is calculated, the performance of the vehicle to be tested is tested, the vehicle to be tested is tested more comprehensively, and the accuracy of vehicle testing is improved.

In the vehicle testing method provided by the embodiment, road spectrum information of a tested road section and an initial speed of a vehicle to be tested are obtained; the road spectrum information of the test road section is acquired from the actual road section; controlling the vehicle to be tested to run according to the initial speed of the vehicle to be tested; obtaining a test case based on road spectrum information of the test road section; and transmitting the test cases to the vehicle to be tested so that the vehicle to be tested can be tested according to the test cases. In the embodiment of the application, the road spectrum information of the test road section is acquired from the actual road section, and the test case is acquired based on the road spectrum information of the test road section in the vehicle test process, so that the vehicle test process is closer to the process of running the vehicle to be tested on the actual road, and the accuracy of the vehicle test is improved.

Example two

Fig. 3 is a schematic flow chart of a vehicle testing method according to a second embodiment of the present application, where, based on the above embodiment, as shown in fig. 3, before the step 102, the method further includes:

step 301, inputting road spectrum information of a test road section into a GPS positioning simulator;

the step 103 specifically includes:

302, acquiring the speed of a vehicle to be detected when a vehicle speed acquisition period comes, and inputting the acquired speed of the vehicle to be detected into a GPS positioning simulator;

step 303, acquiring GPS positioning information output by a GPS positioning simulator, wherein the GPS positioning information is calculated by the GPS positioning simulator based on road spectrum information of a test road section and acquired speed of a vehicle to be tested;

step 304, using the GPS positioning information as the current test case.

The GPS positioning simulator can determine GPS positioning information corresponding to the vehicle to be tested based on road spectrum information of the road section to be tested and the acquired speed of the vehicle to be tested. In practical application, after a period of time after the start of the vehicle test, the speed of the vehicle to be tested is unchanged, and when the vehicle speed acquisition period comes, the acquired speed of the vehicle to be tested is the initial speed of the vehicle to be tested, and the initial speed of the vehicle to be tested is input to the GPS positioning simulator; the GPS positioning simulator determines the driving mileage of the current vehicle to be tested based on the initial speed of the vehicle to be tested, calculates based on the driving mileage of the current vehicle to be tested and the road spectrum information of the test road section, obtains the GPS positioning information corresponding to the vehicle to be tested and outputs the GPS positioning information.

Correspondingly, in the middle process of vehicle testing, when the vehicle speed acquisition period comes, acquiring the vehicle speed of the vehicle to be tested, and inputting the vehicle speed of the vehicle to be tested into the GPS positioning simulator; the GPS positioning simulator determines the driving mileage of the current vehicle to be tested based on the speed of the vehicle to be tested and the driving mileage of the vehicle to be tested obtained through calculation in the last vehicle speed acquisition period, calculates the driving mileage of the current vehicle to be tested and the road spectrum information of the test road section, obtains the GPS positioning information corresponding to the vehicle to be tested and outputs the GPS positioning information.

In practice, during the vehicle testing process, the position of the vehicle to be tested on the test road section is continuously changed, the road conditions of different positions on the test road section are different, and the predictive cruise system in the vehicle to be tested can control the torque, gear, speed and the like of the vehicle to be tested based on the position of the vehicle to be tested. Therefore, in the test process, GPS positioning information can be used as a test case to test the vehicle to be tested.

Specifically, the vehicle to be tested comprises an ADAS map module, a navigation module and a cruise prediction module. Specifically, the ADAS map module determines road information, such as road gradient, flatness, crossing number and the like, within a preset range of GPS positioning information of the vehicle to be detected based on the GPS positioning information of the vehicle to be detected; the navigation module acquires road condition information in a preset range, such as traffic flow, number of passengers and the like in a road, based on GPS positioning information of the vehicle to be detected. The foreseeing cruising module controls the torque, the gear and the speed of the vehicle to be tested based on the road information and the road condition information in the preset range.

It can be understood that in the test process, when the vehicle speed acquisition period comes, the vehicle speed of the vehicle to be tested is acquired, and the GPS positioning information of the vehicle to be tested is determined based on the acquired vehicle speed of the vehicle to be tested and the road spectrum information of the test road section. And transmitting the GPS positioning information to the vehicle to be tested as a test case, so that the vehicle to be tested updates the torque, gear and speed of the vehicle to be tested according to the GPS positioning information. It can be appreciated that in the vehicle testing method in this embodiment, a closed loop of the vehicle test is realized.

In the embodiment, road spectrum information of a test road section is input into a GPS positioning simulator, the speed of a vehicle to be tested is collected at fixed time in the vehicle test process, the collected speed of the vehicle to be tested is input into the GPS positioning simulator, and GPS positioning information output by the GPS positioning simulator is used as a test case; the GPS positioning information is transmitted to the vehicle to be tested, so that the vehicle to be tested is tested according to the GPS positioning information, the vehicle testing process is closer to the process that the vehicle to be tested runs on an actual road, and the accuracy of vehicle testing can be effectively improved.

Optionally, in an example, before step 102, the method further includes:

Inputting road spectrum information of the test road section into a rotary drum test device;

after the step 303, the method further includes:

and transmitting the GPS positioning information to the rotary drum test device to control the rotary drum test device, and determining the gradient of the rotary drum in the rotary drum test device according to the GPS positioning information and the road spectrum information of the test road section.

The rotary drum is also called a chassis dynamometer, is common equipment in vehicle testing, can simulate an actual road in a controllable environment by utilizing the roller assemblies, can effectively avoid the influence of natural environments (such as weather, different road conditions and the like) on vehicle testing, and can control different environment parameters (free field, temperature, humidity and the like) by matching with a silencing chamber, an environment bin and the like.

In practice, the drum is used for simulating an actual road, and in the vehicle testing process, the vehicle to be tested runs on the drum test device, and the running process of the vehicle to be tested on the actual road is simulated. In practical application, before controlling the vehicle to be tested to run according to the initial speed of the vehicle to be tested, the road spectrum information of the test road section is input into the rotary drum test device. In the vehicle testing process, GPS positioning information output by the GPS positioning simulator is transmitted to the rotary drum test device, the rotary drum test device determines the gradient of the rotary drum in the rotary drum test device based on road spectrum information and GPS positioning information of a test road section, and accurate simulation of roads in the test road section corresponding to the GPS positioning information can be realized.

Alternatively, in one example, the load of the vehicle under test may be controlled by a drum test apparatus. In combination with the above example, the load of the vehicle to be tested can be controlled by the drum test device to be respectively: no load, half load or full load.

In the example, before the vehicle to be tested runs, road spectrum information of a test road section is input into the rotary drum test device, in the test process, GPS positioning information output by the GPS positioning simulator is transmitted to the rotary drum test device, the gradient of the rotary drum in the test process is controlled, the test road section can be better simulated, and the accuracy of vehicle test can be effectively improved.

In order to better understand the process of testing a vehicle, the vehicle testing process is described below with reference to fig. 4, and fig. 4 is a schematic diagram of a vehicle testing architecture according to a second embodiment of the present application. As shown in fig. 4, the vehicle 41 to be tested includes an ADAS map module 42, a navigation module 43, and a whole vehicle power domain control module 44.

Describing the process of vehicle testing in connection with fig. 4, the vehicle testing steps include:

1. acquiring road spectrum information of a test road section and an initial vehicle speed of a vehicle 41 to be tested; inputting the road spectrum information of the test road section into a GPS positioning simulator 45 and a rotary drum test device 46;

2. Controlling the vehicle 41 to be tested to run according to the initial speed of the vehicle 41 to be tested; when the vehicle speed acquisition period comes, acquiring the vehicle speed of the vehicle 41 to be detected, and inputting the acquired vehicle speed of the vehicle 41 to be detected into the GPS positioning simulator 45 and the rotary drum test device 46;

3. acquiring GPS positioning information calculated by the GPS positioning simulator 45 based on road spectrum information of the test road section and the acquired vehicle speed of the vehicle 41 to be tested;

4. transmitting the GPS positioning information to the rotary drum test device 46 to control the rotary drum test device 46, and controlling the gradient of the rotary drum in the rotary drum test device 46 according to the GPS positioning information and the road spectrum information of the test road section;

5. the GPS positioning information is transmitted to the vehicle 41 to be tested as a current test case, so that the vehicle 41 to be tested is tested according to the test case.

In the vehicle testing method provided by the embodiment, road spectrum information of a tested road section and an initial speed of a vehicle to be tested are obtained; the road spectrum information of the test road section is acquired from the actual road section; inputting the road spectrum information of the test road section into a GPS positioning simulator; controlling the vehicle to be tested to run according to the initial speed of the vehicle to be tested; when a vehicle speed acquisition period arrives, acquiring the vehicle speed of the vehicle to be detected, and inputting the acquired vehicle speed of the vehicle to be detected into a GPS positioning simulator; acquiring GPS positioning information output by a GPS positioning simulator; taking GPS positioning information as a current test case; and transmitting the test cases to the vehicle to be tested so that the vehicle to be tested can be tested according to the test cases. In the embodiment of the application, the road spectrum information of the test road section is acquired by the actual road section, the road spectrum information of the test road section is input into the GPS positioning simulator, the speed of the vehicle to be tested is acquired at fixed time in the vehicle test process, the acquired speed of the vehicle to be tested is input into the GPS positioning simulator, the GPS positioning information output by the GPS positioning simulator is used as a test case, and the vehicle to be tested is tested, so that the vehicle test process is closer to the running process of the vehicle to be tested on the actual road, and the accuracy of the vehicle test is improved.

Example III

Fig. 5 is a schematic structural diagram of a vehicle testing device according to a fourth embodiment of the present application, as shown in fig. 5, the device includes:

the acquisition module 51 is used for acquiring road spectrum information of the test road section and the initial speed of the vehicle to be tested; the road spectrum information of the test road section is acquired from the actual road section;

the control module 52 is used for controlling the vehicle to be tested to run according to the initial speed of the vehicle to be tested;

the processing module 53 is configured to obtain a test case based on the road spectrum information of the test road section;

the transmission module 54 is configured to transmit the test case to the vehicle under test, so that the vehicle under test tests according to the test case.

In this embodiment, the test road section is an actual road section selected according to a vehicle test standard, the test road section covers various road types commonly used in vehicle test, and road spectrum information of the test road section is acquired on the test road section. The initial speed of the vehicle to be tested is the initial speed of the vehicle to be tested entering the test road section. Specifically, the control module 52 controls the vehicle under test to operate at the initial vehicle speed of the vehicle under test, and may be ready for vehicle testing. In the vehicle test process, the position of the vehicle to be tested on the test road section is continuously changed, the road conditions of different positions on the test road section are different, and the predictive cruise system in the vehicle to be tested can control the torque, gear, speed and the like of the vehicle to be tested based on the position of the vehicle to be tested.

Therefore, in the test process, the positioning information can be used as a test case to test the vehicle to be tested. Specifically, during the test, the processing module 53 may collect the speed of the vehicle to be tested at regular time, and determine the positioning information of the vehicle to be tested based on the collected speed of the vehicle to be tested and the road spectrum information of the test road section. Transmitting the positioning information as a test case to the vehicle to be tested, so that the vehicle to be tested updates the torque, gear and speed of the vehicle to be tested according to the positioning information.

In practical application, the vehicle to be tested comprises an ADAS map module, a navigation module and a cruise prediction module. Specifically, the transmission module 54 is specifically configured to: transmitting the positioning information to an ADAS map module, so that the ADAS map module determines road information, such as road gradient, flatness, crossing number and the like, within a preset range of the positioning information of the vehicle to be detected based on the positioning information of the vehicle to be detected; and transmitting the positioning information to the navigation module so that the navigation module can acquire road condition information in a preset range, such as traffic flow, number of passengers and the like in a road, based on the positioning information of the vehicle to be detected. And transmitting the road information and the road condition information within the preset range to the predictive cruising module, so that the predictive cruising module controls the torque, the gear and the speed of the vehicle to be tested based on the road information and the road condition information within the preset range.

It can be understood that the road spectrum information of the test road section is acquired from the actual road section; in the vehicle test process, the processing module 53 acquires the test case based on the road spectrum information of the test road section, so that the vehicle to be tested is tested based on the test case, the vehicle test process is closer to the process that the vehicle to be tested runs on an actual road, and the accuracy of vehicle test can be effectively improved.

Optionally, in one example, the apparatus further includes:

the input module is used for inputting the road spectrum information of the test road section into the GPS positioning simulator;

the processing module 53 is specifically configured to:

when a vehicle speed acquisition period arrives, acquiring the vehicle speed of the vehicle to be detected, and inputting the acquired vehicle speed of the vehicle to be detected into a GPS positioning simulator;

acquiring GPS positioning information output by a GPS positioning simulator, wherein the GPS positioning information is calculated by the GPS positioning simulator based on road spectrum information of a test road section and acquired speed of a vehicle to be tested;

and taking the GPS positioning information as the current test case.

The GPS positioning simulator can determine GPS positioning information corresponding to the vehicle to be tested based on road spectrum information of the road section to be tested and the acquired speed of the vehicle to be tested. In practical application, after a period of time after the start of the vehicle test, the speed of the vehicle to be tested is unchanged, and when the vehicle speed acquisition period arrives, the processing module 53 acquires the speed of the vehicle to be tested as the initial speed of the vehicle to be tested, and inputs the initial speed of the vehicle to be tested into the GPS positioning simulator; the GPS positioning simulator determines the driving mileage of the current vehicle to be tested based on the initial speed of the vehicle to be tested, calculates based on the driving mileage of the current vehicle to be tested and the road spectrum information of the test road section, obtains the GPS positioning information corresponding to the vehicle to be tested and outputs the GPS positioning information.

Correspondingly, in the middle process of vehicle testing, when the vehicle speed acquisition period comes, the processing module 53 acquires the vehicle speed of the vehicle to be tested, and inputs the vehicle speed of the vehicle to be tested into the GPS positioning simulator; the GPS positioning simulator determines the driving mileage of the current vehicle to be tested based on the speed of the vehicle to be tested and the driving mileage of the vehicle to be tested obtained through calculation in the last vehicle speed acquisition period, calculates the driving mileage of the current vehicle to be tested and the road spectrum information of the test road section, obtains the GPS positioning information corresponding to the vehicle to be tested and outputs the GPS positioning information.

It can be understood that, in the testing process, when the vehicle speed collection period arrives, the processing module 53 collects the vehicle speed of the vehicle to be tested, and determines the GPS positioning information of the vehicle to be tested based on the collected vehicle speed of the vehicle to be tested and the road spectrum information of the test road section. The transmission module 54 transmits the GPS positioning information as a test case to the vehicle under test, so that the vehicle under test updates the torque, gear and speed of the vehicle under test according to the GPS positioning information. It can be appreciated that in the vehicle testing method in this embodiment, a closed loop of the vehicle test is realized.

In this example, the input module inputs road spectrum information of the test road section into the GPS positioning simulator; in the vehicle test process, the processing module 53 collects the speed of the vehicle to be tested at regular time, the collected speed of the vehicle to be tested is input into the GPS positioning simulator, and the GPS positioning information output by the GPS positioning simulator is used as a test case; the transmission module 54 transmits the GPS positioning information to the vehicle to be tested, so that the vehicle to be tested is tested according to the GPS positioning information, the vehicle testing process is closer to the process that the vehicle to be tested runs on an actual road, and the accuracy of vehicle testing can be effectively improved.

Optionally, in an example, the input module is further configured to:

the transmission module 54 is further configured to:

In this example, the drum is used to simulate an actual road, and in the vehicle test process, the vehicle to be tested runs on the drum test device, and the process of running the vehicle to be tested on the actual road is simulated. In practical application, the input module inputs the road spectrum information of the test road section into the rotary drum test device. In the vehicle test process, the transmission module 54 transmits the GPS positioning information output by the GPS positioning simulator to the rotary drum test device, and the rotary drum test device determines the gradient of the rotary drum in the rotary drum test device based on the road spectrum information and the GPS positioning information of the test road section, so that accurate simulation of the road in the test road section corresponding to the GPS positioning information can be realized.

In the example, before a vehicle to be tested runs, an input module inputs road spectrum information of a test road section into a rotary drum test device; in the testing process, the transmission module 54 transmits the GPS positioning information output by the GPS positioning simulator to the rotary drum experimental device, and the gradient of the rotary drum in the testing process is controlled, so that a test road section can be better simulated, and the accuracy of vehicle testing can be effectively improved.

Optionally, in one example, the apparatus further includes:

the first acquisition module is used for acquiring test data of the vehicle to be tested when a data acquisition period arrives, wherein the test data comprises torque and gears;

the evaluation module is used for evaluating the test data of the vehicle to be tested, which are acquired and obtained in each acquisition period, based on a preset test standard.

In combination with the above examples, a predictive cruise system in a vehicle under test may control torque, gear, speed, etc. of the vehicle under test based on the position of the vehicle under test. Therefore, the evaluation module can evaluate the predictive cruise system in the vehicle to be tested by evaluating the torque and the gear in the test process.

In one example, the preset test criteria corresponds to the acquisition cycles, and the preset test criteria include standard values of torque and gear under each acquisition cycle. The evaluation module is specifically used for: and for each acquisition period, acquiring the standard value of the torque and the gear corresponding to the acquisition period, comparing the torque and the gear acquired by the acquisition period with the standard value of the torque and the gear corresponding to the acquisition period, and evaluating the accuracy of the torque and the gear acquired by the acquisition period.

Optionally, the preset test standard corresponds to a position in the test road section. The preset test standard comprises standard values of torque and gears corresponding to all positions on the test road section. The evaluation module is specifically used for: and for each acquisition period, acquiring the position of the vehicle to be tested in the test road section in the acquisition period, determining the standard value of the torque and the gear corresponding to the acquisition period based on the position of the vehicle to be tested in the test road section in the acquisition period, comparing the torque and the gear acquired in the acquisition period with the standard value of the torque and the gear corresponding to the acquisition period, and evaluating the accuracy of the torque and the gear acquired in the acquisition period.

In the example, in the test process, when a data acquisition period comes, a first acquisition module acquires torque and gear of a vehicle to be tested; the evaluation module evaluates the test data of the vehicle to be tested, which are acquired and obtained in each acquisition period, based on a preset test standard, so that the predictive cruising function of the vehicle can be evaluated, and the accuracy of vehicle test is improved.

Optionally, in one example, the apparatus further includes:

the first setting module is used for setting the initial vehicle speed of the vehicle to be tested as a first vehicle speed, a second vehicle speed and a third vehicle speed respectively;

the second setting module is used for setting the load of the vehicle to be tested as no-load, half-load and full-load respectively;

The second acquisition module is used for acquiring the driving mileage of the vehicle to be tested and the oil electricity consumption of the vehicle to be tested in the whole test process;

the calculation module is used for calculating and obtaining the energy saving rate of the vehicle to be tested based on the driving mileage of the vehicle to be tested and the oil electricity quantity consumed by the vehicle to be tested.

In this example, in order to more comprehensively test the vehicle, different starting vehicle speeds and loads can be set for testing the vehicle to be tested. The first vehicle speed, the second vehicle speed and the third vehicle speed may be initial vehicle speeds which are commonly used in daily driving of the vehicle, and it should be noted that the first setting module may set a greater number of different vehicle speeds as initial vehicle speeds to test the vehicle, which is not limited herein.

It can be understood that for each initial vehicle speed, different vehicle loads need to be set for testing the vehicle to be tested, for example, the initial vehicle speed of the vehicle to be tested is set to be a first vehicle speed, the load of the vehicle to be tested is set to be no-load, half-load and full-load, and three vehicle tests are performed. It should be noted that the second setting module may set a greater number of loads of the vehicles to be tested, and test the vehicles, which is not limited herein.

Specifically, after the first setting module and the second setting module set the initial speed of the vehicle to be tested and the load of the vehicle to be tested, the vehicle to be tested is tested through the vehicle testing device, and after the vehicle testing is finished, the second acquisition module acquires the driving mileage of the vehicle to be tested and the oil and electricity quantity consumed by the vehicle to be tested in the whole testing process.

The method comprises the steps that an example is conducted on a calculation process of the energy saving rate of the vehicle to be tested, a first setting module and a second setting module set initial vehicle speed and load of the vehicle to be tested, the vehicle to be tested is tested in a driver driving mode, a constant-speed cruising mode and a predictive cruising mode respectively, and after the vehicle test is finished, a second acquisition module acquires the driving mileage of the vehicle to be tested and the oil and electricity consumption of the vehicle to be tested in the whole test process in the three modes. The calculation module calculates the energy conservation rate of the vehicle to be tested in the predictive cruising mode compared with the vehicle in the driver driving mode and the constant speed cruising mode.

In this example, the first setting module and the second setting module set different initial vehicle speeds and loads of the vehicle to be tested; the vehicle to be tested is tested, the second acquisition module acquires the driving mileage of the vehicle to be tested and the oil electricity quantity consumed by the vehicle to be tested in the whole test process, the calculation module calculates the energy saving rate of the vehicle to be tested, the performance of the vehicle to be tested is tested, the vehicle to be tested is tested more comprehensively, and the accuracy of vehicle test is improved.

In the vehicle testing device provided by the embodiment, an acquisition module acquires road spectrum information of a tested road section and an initial speed of a vehicle to be tested; the road spectrum information of the test road section is acquired from the actual road section; the control module controls the vehicle to be tested to run according to the initial speed of the vehicle to be tested; the processing module obtains a test case based on the road spectrum information of the test road section; the transmission module transmits the test cases to the vehicle to be tested so that the vehicle to be tested can be tested according to the test cases. In the embodiment of the application, the road spectrum information of the test road section is acquired from the actual road section, and the test case is acquired based on the road spectrum information of the test road section in the vehicle test process, so that the vehicle test process is closer to the process of running the vehicle to be tested on the actual road, and the accuracy of the vehicle test is improved.

Example IV

Fig. 6 is a schematic structural diagram of an electronic device according to a fifth embodiment of the present application, as shown in fig. 6, where the electronic device includes:

a processor (processor) 61, the master device further comprising a memory (memory) 62; a communication interface (Communication Interface) 63 and a bus 64 may also be included. The processor 765, the memory 62, the communication interface 63, and the communication between each other can be accomplished through the bus 64. The communication interface 63 may be used for information transfer. Processor 61 may invoke logic instructions in memory 62 to perform the methods of the embodiments described above.

Further, the logic instructions in the memory 62 described above may be implemented in the form of software functional units and stored in a computer readable storage medium when sold or used as a stand alone product.

The memory 62 is a computer readable storage medium that can be used to store a software program, a computer executable program, and program instructions/modules corresponding to the methods in the embodiments of the present application. The processor 61 executes functional applications and data processing by running software programs, instructions and modules stored in the memory 62, i.e. implements the methods of the method embodiments described above.

Memory 62 may include a storage program area that may store an operating system, at least one application program required for functionality, and a storage data area; the storage data area may store data created according to the use of the terminal device, etc. In addition, memory 62 may include high-speed random access memory, and may also include non-volatile memory.

The embodiments of the present application also provide a computer readable storage medium having stored therein computer executable instructions that when executed by a processor are for implementing the method of any of the embodiments. For example, the above-described computer-readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. A vehicle testing method, comprising:

obtaining road spectrum information of a test road section and an initial speed of a vehicle to be tested; the road spectrum information of the test road section is acquired from an actual road section;

controlling a vehicle to be tested to run according to the initial speed of the vehicle to be tested;

obtaining a test case based on the road spectrum information of the test road section;

and transmitting the test case to the vehicle to be tested so that the vehicle to be tested can be tested according to the test case.

2. The method of claim 1, wherein prior to controlling the vehicle under test to operate at the initial vehicle speed of the vehicle under test, the method further comprises:

inputting the road spectrum information of the test road section into a GPS positioning simulator;

the obtaining the test case based on the road spectrum information of the test road section specifically comprises the following steps:

acquiring the speed of the vehicle to be detected at regular time, and inputting the acquired speed of the vehicle to be detected into the GPS positioning simulator;

Acquiring GPS positioning information output by the GPS positioning simulator, wherein the GPS positioning information is calculated by the GPS positioning simulator based on road spectrum information of the test road section and the acquired speed of the vehicle to be tested;

and taking the GPS positioning information as the current test case.

3. The method according to claim 2, wherein before the controlling the vehicle to be tested to operate at the initial vehicle speed of the vehicle to be tested, the method further comprises:

inputting the road spectrum information of the test road section into a rotary drum test device;

after the GPS positioning information output by the GPS positioning simulator is obtained, the method further includes:

and transmitting the GPS positioning information to a rotary drum test device to control the rotary drum test device, and determining the gradient of a rotary drum in the rotary drum test device according to the GPS positioning information and the road spectrum information of the test road section.

4. The method of claim 1, wherein after transmitting the test case to the vehicle under test such that the vehicle under test is tested in accordance with the test case, the method further comprises:

when a data acquisition period arrives, acquiring test data of the vehicle to be tested, wherein the test data comprises torque and gears;

And evaluating the test data of the vehicle to be tested, which are acquired and obtained in each acquisition period, based on a preset test standard.

5. The method according to any one of claims 1-4, wherein before obtaining the road spectrum information of the test road section and the initial speed of the vehicle under test, the method further comprises:

the load of the vehicle to be tested is set respectively, and the load comprises: no load, half load and full load;

after the test case is transmitted to the vehicle to be tested so that the vehicle to be tested tests according to the test case, the method further comprises the following steps:

collecting the driving mileage of the vehicle to be tested and the oil and electricity consumption of the vehicle to be tested in the whole test process;

6. A vehicle testing apparatus, comprising:

the acquisition module is used for acquiring road spectrum information of the test road section and the initial speed of the vehicle to be tested; the road spectrum information of the test road section is acquired from an actual road section;

The control module is used for controlling the vehicle to be tested to run according to the initial speed of the vehicle to be tested;

the processing module is used for obtaining a test case based on the road spectrum information of the test road section;

and the transmission module is used for transmitting the test case to the vehicle to be tested so that the vehicle to be tested can be tested according to the test case.

7. The apparatus of claim 6, wherein the apparatus further comprises:

the processing module is specifically configured to:

and taking the GPS positioning information as the current test case.

8. The apparatus of claim 7, wherein the input module is further to:

The transmission module is further configured to:

9. The apparatus of claim 6, wherein the apparatus further comprises:

and the evaluation module is used for evaluating the test data of the vehicle to be tested, which are acquired and obtained in each acquisition period, based on a preset test standard.

10. The apparatus according to any one of claims 6-9, wherein the apparatus further comprises:

the second acquisition module is used for acquiring the driving mileage of the vehicle to be tested and the oil electricity consumed by the vehicle to be tested in the whole test process;

11. An electronic device, comprising: a processor, and a memory communicatively coupled to the processor;

the memory stores computer-executable instructions;

the processor executes computer-executable instructions stored in the memory to implement the method of any one of claims 1-5.

12. A computer readable storage medium having stored therein computer executable instructions which when executed by a processor are adapted to carry out the method of any one of claims 1-5.