Method and device for closing ramp recognition function, vehicle-mounted terminal and storage medium

Abstract

The embodiment of the invention provides a ramp recognition function closing method and device, a vehicle-mounted terminal and a storage medium, and relates to the technical field of vehicle control. The method comprises the steps that in response to the fact that the gear of the vehicle is switched to the forward gear, vehicle data of the vehicle are obtained, and the vehicle data comprise the road acceleration, longitudinal acceleration data and yaw velocity of the vehicle; under the condition that the vehicle data meets the first condition, it is determined that the vehicle is in a drum mode, and the drum mode refers to the mode that actual road driving is simulated through a roller assembly; and under the condition that the vehicle is in the drum mode, the ramp recognition function of the vehicle is turned off. By adopting the technical scheme provided by the embodiment of the invention, the test efficiency of the vehicle can be improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of vehicle control technology, and in particular to a method, device, vehicle-mounted terminal and storage medium for shutting down a slope recognition function. Background Art

[0002] The drum test bench is a relatively efficient and accurate vehicle testing equipment.

[0003] In the related art, when a vehicle is tested on a drum test bench, the vehicle can be put into a drum mode to adapt the vehicle to the drum test process.

[0004] In the above-mentioned related technologies, after the vehicle enters the drum mode, some misidentification phenomena are prone to occur. For example, if the vehicle is misidentified as being on a slope, it may cause the engine to shut down by mistake, thereby causing test failure and affecting vehicle test efficiency. Summary of the invention

[0005] The embodiment of the present application provides a method, device, vehicle-mounted terminal and storage medium for turning off the ramp recognition function, which can improve the test efficiency of the vehicle. The technical solution provided by the embodiment of the present application is as follows:

[0006] According to one aspect of an embodiment of the present application, a method for disabling a ramp recognition function is provided, the method comprising:

[0007] In response to the gear position of the vehicle being switched to a forward gear position, acquiring vehicle data of the vehicle, the vehicle data including road acceleration, longitudinal acceleration data and yaw angular velocity of the vehicle;

[0008] In the case where the vehicle data satisfies the first condition, determining that the vehicle is in a drum mode, wherein the drum mode refers to a mode of simulating actual road driving through a roller assembly;

[0009] When the vehicle is in the rotating drum mode, the hill recognition function of the vehicle is turned off.

[0010] In some embodiments, the longitudinal acceleration data includes a first longitudinal acceleration and a second longitudinal acceleration, the first longitudinal acceleration being the vehicle acceleration when the vehicle is switched to the forward gear, and the second longitudinal acceleration being the acceleration when the vehicle speed exceeds a first threshold for the first time after the vehicle is switched to the forward gear;

[0011] The first condition includes at least one of the following:

[0012] The absolute value of the road acceleration is greater than a second threshold;

[0013] The longitudinal acceleration difference is less than a third threshold, the longitudinal acceleration difference being a difference between an absolute value of the second longitudinal acceleration and an absolute value of the first longitudinal acceleration;

[0014] The absolute value of the yaw angular velocity is less than a fourth threshold.

[0015] In some embodiments, after acquiring the vehicle data of the vehicle, the method further includes:

[0016] within a first time period after the vehicle speed exceeds the first threshold for the first time, identifying whether the vehicle is in the rotating drum mode;

[0017] If the vehicle is not identified as being in the rotating drum mode within a first period of time after the vehicle speed exceeds the first threshold for the first time, the identification of whether the vehicle is in the rotating drum mode is stopped.

[0018] In some embodiments, after turning off the ramp recognition function of the vehicle, the method further includes:

[0019] When the vehicle data satisfies a second condition, reopening the ramp recognition function of the vehicle; wherein the second condition includes at least one of the following:

[0020] The absolute value of the yaw angular velocity is greater than a fourth threshold and lasts for a second time period;

[0021] The absolute value of the longitudinal acceleration of the vehicle is greater than a fifth threshold and lasts for a third time period;

[0022] The vehicle is turned off.

[0023] In some embodiments, when the vehicle is in the rotating drum mode, after turning off the slope recognition function of the vehicle, the method further includes:

[0024] When the vehicle satisfies both the first condition and the third condition, determining that the vehicle is switched from the drum mode to a ramp test mode, wherein the ramp test mode refers to a mode of simulating actual ramp driving by a roller assembly with a slope;

[0025] Turn on the hill start recognition function of the vehicle.

[0026] In some embodiments, the third condition includes at least one of the following:

[0027] The height difference between the front wheels and the rear wheels of the vehicle is greater than a fifth threshold;

[0028] The time duration during which the tilt angle of the vehicle is greater than the sixth threshold reaches a fifth time duration.

[0029] According to one aspect of an embodiment of the present application, a device for shutting down a ramp recognition function is provided, the device comprising:

[0030] a data acquisition module, configured to acquire vehicle data of the vehicle in response to the gear position of the vehicle being switched to a forward gear position, wherein the vehicle data includes a road acceleration, longitudinal acceleration data, and yaw angular velocity of the vehicle;

[0031] a mode determination module, configured to determine, when the vehicle data satisfies a first condition, that the vehicle is in a drum mode, wherein the drum mode refers to a mode of simulating actual road driving through a roller assembly;

[0032] The function shut-down module is used to shut down the slope recognition function of the vehicle when the vehicle is in the rotating drum mode.

[0033] In some embodiments, the longitudinal acceleration data includes a first longitudinal acceleration and a second longitudinal acceleration, the first longitudinal acceleration being the vehicle acceleration when the vehicle is switched to the forward gear, and the second longitudinal acceleration being the acceleration when the vehicle speed exceeds a first threshold for the first time after the vehicle is switched to the forward gear;

[0034] The first condition includes at least one of the following:

[0035] The absolute value of the road acceleration is greater than a second threshold;

[0036] The longitudinal acceleration difference is less than a third threshold, the longitudinal acceleration difference being a difference between an absolute value of the second longitudinal acceleration and an absolute value of the first longitudinal acceleration;

[0037] The absolute value of the yaw angular velocity is less than a fourth threshold.

[0038] In some embodiments, the apparatus further comprises:

[0039] The mode determination module is further configured to identify whether the vehicle is in the rotating drum mode within a first time period after the vehicle speed exceeds the first threshold for the first time;

[0040] The identification stopping module is used for stopping identifying whether the vehicle is in the rotating drum mode if the vehicle is not identified as being in the rotating drum mode within a first time period after the vehicle speed exceeds the first threshold for the first time.

[0041] In some embodiments, the apparatus further comprises:

[0042] A function activation module is used to re-activate the ramp recognition function of the vehicle when the vehicle data satisfies a second condition; wherein the second condition includes at least one of the following:

[0043] The absolute value of the yaw angular velocity is greater than a fourth threshold and lasts for a second time period;

[0044] The absolute value of the longitudinal acceleration of the vehicle is greater than a fifth threshold and lasts for a third time period;

[0045] The vehicle is turned off.

[0046] In some embodiments, the mode determination module is further used to determine that the vehicle switches from the drum mode to a ramp test mode when the vehicle satisfies both the first condition and the third condition, wherein the ramp test mode refers to a mode of simulating actual ramp driving by a roller assembly with a slope;

[0047] The function activation module is also used to activate the slope recognition function of the vehicle.

[0048] In some embodiments, the third condition includes at least one of the following:

[0049] The height difference between the front wheels and the rear wheels of the vehicle is greater than a fifth threshold;

[0050] The time duration during which the tilt angle of the vehicle is greater than the sixth threshold reaches a fifth time duration.

[0051] According to one aspect of an embodiment of the present application, a computer device is provided, comprising a processor and a memory, wherein a computer program is stored in the memory, and the computer program is loaded and executed by the processor to implement the method for closing the ramp recognition function.

[0052] According to one aspect of an embodiment of the present application, a computer-readable storage medium is provided, in which a computer program is stored. The computer program is loaded and executed by a processor to implement the method for closing the ramp recognition function.

[0053] According to one aspect of an embodiment of the present application, a computer program product is provided, and the computer program product is loaded and executed by a processor to implement the above-mentioned method for closing the ramp recognition function.

[0054] The technical solution provided by the embodiments of the present application may have the following beneficial effects:

[0055] By determining whether the vehicle is in the drum mode and turning off the vehicle's slope recognition function when the vehicle is in the drum mode, the vehicle can be prevented from being mistakenly identified as being on a slope in the drum mode, thereby preventing the vehicle from being affected by the engine starting in error and affecting the test results, thereby improving the vehicle's test efficiency.

[0056] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0058] Figure 1 is a flow chart of a method for shutting down a ramp recognition function provided by an embodiment of the present application;

[0059] Figure 2 is a schematic diagram of a method for shutting down a ramp recognition function provided by an embodiment of the present application;

[0060] Figure 3 is a schematic diagram of a longitudinal acceleration sensor provided by an embodiment of the present application;

[0061] Figure 4 is a block diagram of a device for shutting down a ramp recognition function provided by one embodiment of the present application;

[0062] Figure 5 This is a block diagram of a terminal device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0063] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of methods consistent with some aspects of the present application as detailed in the appended claims.

[0064] During vehicle testing, the drum test bench is a relatively efficient and accurate vehicle testing equipment. The drum test bench can comprehensively test various performance indicators of the vehicle by simulating different driving conditions. By simulating road driving conditions, the drum test bench can perform various performance tests on the vehicle in a laboratory environment, such as power test, economy test, braking test, etc. During the vehicle development stage, various performance verification and optimization can be performed through the drum test bench to improve product development efficiency.

[0065] As an important equipment for automobile performance testing, the drum test bench has at least the following advantages:

[0066] 1. The drum test bench is equipped with advanced control systems and sensors, which can monitor and record various parameters of the vehicle in real time during operation, providing accurate data support for performance evaluation;

[0067] 2. Compared with traditional road tests, the drum test bench test cost is lower and is not affected by objective conditions such as weather and driving skills, which can shorten the test cycle;

[0068] 3. Testing on a test bench can ensure the safety of testers and avoid the risk of traffic accidents caused by road testing.

[0069] However, the drum test bench also has the problem of simulation limitations. Although the drum test bench can simulate a variety of roads and driving conditions, it still has certain limitations compared with actual road tests, and many misidentification phenomena may occur, such as misidentification of vehicles on a slope.

[0070] Usually, a car can enter the drum mode through a diagnostic instrument, a combination of buttons, etc., but in a drum test, acceleration and deceleration will cause the vehicle to raise its head or lower its head, and the vehicle body is not parallel to the ground. The slope algorithm may mistakenly identify that the vehicle is climbing a slope. If the vehicle is identified as being on a slope, the engine is not allowed to shut down, resulting in an unexpected start of the engine, which in turn causes the drum test to fail to proceed smoothly. The embodiments of the present application mainly optimize the algorithm in the vehicle drum test, adaptively enter the drum mode, and add judgment conditions to ensure that the vehicle does not perform slope calculations under drum conditions (i.e., drum mode), thereby avoiding calculation errors that lead to experimental failures.

[0071] In the method provided in the embodiment of the present application, the execution subject of each step may be a computer device, which refers to an electronic device with data calculation, processing and storage capabilities. The computer device may be a terminal such as a vehicle-mounted terminal, a PC (Personal Computer), a tablet computer, a smart phone, a wearable device, an intelligent robot, etc.; it may also be a server. Among them, the server may be an independent physical server, or a server cluster or distributed system composed of multiple physical servers, or a cloud server that provides cloud computing services. In some embodiments, the computer device may be a computer device set on a vehicle, or it may be integrated in the vehicle.

[0072] The technical solution of the present application is introduced and explained below through several embodiments.

[0073] Please refer to Figure 1, which shows a flow chart of a method for shutting down the ramp recognition function provided by an embodiment of the present application. In this embodiment, the method is mainly illustrated by applying it to the computer device introduced above. The method may include at least one of the following steps (110-130).

[0074] Step 110 , in response to the gear position of the vehicle being switched to the forward gear position, vehicle data of the vehicle is acquired, the vehicle data including the road acceleration, longitudinal acceleration data and yaw angular velocity of the vehicle.

[0075] In some embodiments, the various gears in the vehicle are used to represent different driving modes and functions. For example, for an automatic transmission car, "D gear" represents the forward gear, which is used for normal driving; R represents the reverse gear, which is used for reversing; N represents the neutral gear, which is used for starting or towing; P represents the park gear, which is used for parking; L represents the low gear, which is used to provide greater torque, suitable for climbing or heavy loads; S represents the sport gear, which is used to provide a higher shift speed; M represents the manual mode, allowing the driver to manually control the shifting. For a manual transmission car, there are generally 5 forward gears (i.e., 1st gear, 2nd gear, 3rd gear, 4th gear, and 5th gear) and one reverse gear, among which 1st gear provides the maximum torque, which is suitable for starting uphill or heavy loads; 5th gear provides the highest speed, which is suitable for smooth driving sections such as highways. Manual transmission requires the driver to change the gear meshing in the transmission by operating the gear lever to achieve speed change.

[0076] In some embodiments, the vehicle data refers to the current and latest relevant data of the vehicle, such as the vehicle's current road acceleration, longitudinal acceleration data, yaw angular velocity, and the like.

[0077] In some embodiments, the road acceleration refers to the acceleration of the vehicle relative to the road surface that the wheels contact, which can be obtained by differentiating the vehicle speed. Figure 2 As shown, the vehicle speed sensor measures the vehicle speed to obtain a vehicle speed signal, and then sends the vehicle speed signal to the HCU (Hybrid Control Unit, hybrid power system controller). The HCU derivates the vehicle speed to obtain the road acceleration a1.

[0078] In some embodiments, the longitudinal acceleration data may be obtained by Figure 3 The longitudinal acceleration sensor shown is measured. The longitudinal acceleration sensor measurement value AX = relative ground acceleration v; when the drum is running, the longitudinal acceleration sensor measurement value AX = 0. In some embodiments, if the vehicle is running uphill or downhill, the longitudinal acceleration sensor measurement value AX = relative ground acceleration v + g × sin α (α is the slope of the road).

[0079] In some embodiments, the yaw angular velocity may be measured by a yaw acceleration sensor.

[0080] Step 120: When the vehicle data satisfies the first condition, it is determined that the vehicle is in a drum mode, where the drum mode refers to a mode that simulates actual road driving through a roller assembly.

[0081] In some embodiments, if the vehicle data satisfies the characteristics of the drum test, ie, satisfies the first condition, it can be determined that the vehicle is in the drum mode.

[0082] In some embodiments, the longitudinal acceleration data includes a first longitudinal acceleration and a second longitudinal acceleration, the first longitudinal acceleration refers to the vehicle acceleration when the vehicle is switched to a forward gear, and the second longitudinal acceleration indicates the acceleration when the vehicle speed exceeds a first threshold for the first time after the vehicle is switched to a forward gear; the first condition includes at least one of the following:

[0083] Condition 1: The absolute value of the road acceleration is greater than the second threshold.

[0084] In some embodiments, if the absolute value of the road acceleration |a1| is greater than the second threshold, it means that the acceleration of the vehicle relative to the road is large. In some embodiments, the second threshold may be 0.5 m / s 2 , or other values. The specific value of the second threshold can be set by relevant technical personnel according to actual conditions, and the embodiments of the present application do not make specific limitations on this.

[0085] Condition 2: the longitudinal acceleration difference is less than a third threshold value, and the longitudinal acceleration difference is a difference between the absolute value of the second longitudinal acceleration and the absolute value of the first longitudinal acceleration.

[0086] In some embodiments, the longitudinal acceleration sensor can directly measure the first longitudinal acceleration (which can be expressed as |AX1|) and the second longitudinal acceleration (which can be expressed as |AX2|), and the longitudinal acceleration sensor sends the measured first longitudinal acceleration and second longitudinal acceleration to the HCU; the HCU calculates the difference between |AX2|-|AX1| as the longitudinal acceleration difference, and the HCU compares the difference between |AX2|-|AX1| with the third threshold. In some embodiments, the third threshold can be 0.5m / s 2 , other values ​​may also be taken. The specific value of the third threshold may be set by relevant technical personnel according to actual conditions, and the embodiments of the present application do not make any specific limitation on this.

[0087] In some embodiments, the first threshold may be 3.5 m / s 2 , other values ​​may also be taken. The specific value of the first threshold may be set by relevant technical personnel according to actual conditions, and the embodiments of the present application do not make specific limitations on this.

[0088] Condition 3: The absolute value of the yaw angular velocity is less than a fourth threshold value.

[0089] In some embodiments, the yaw rate can be expressed as yawrate, and the absolute value of the yaw rate can be expressed as |yawrate|. In some embodiments, the fourth threshold value can be 0.5° / s, or other values ​​can be taken. The specific value of the fourth threshold value can be set by relevant technicians according to actual conditions, and the embodiments of the present application do not specifically limit this.

[0090] In some embodiments, when the duration of the above conditions 1 to 3 being satisfied simultaneously exceeds the set duration, it is determined that the vehicle is in the drum mode, the ramp recognition function of the vehicle is turned off, and the slope is set to a default value of 0. In some embodiments, the set duration may be 3000 milliseconds, or other values ​​may be used. The specific value of the set duration may be set by relevant technicians according to actual conditions, and the embodiments of the present application do not specifically limit this.

[0091] Step 130 , when the vehicle is in the drum mode, turn off the slope recognition function of the vehicle.

[0092] In some embodiments, if it is determined that the vehicle is in the drum mode, the ramp recognition function of the vehicle is turned off to avoid misidentification of the vehicle driving on a ramp.

[0093] In the technical solution provided by the embodiment of the present application, in a vehicle drum test, the vehicle recognizes that it has entered the drum mode, and suppresses the miscalculation of the slope through the optimization algorithm. Thus, the vehicle can only enter the drum mode, and avoid logical confusion and strategy errors, which lead to mis-triggering of other working conditions, so as to improve the probability of success of the drum test.

[0094] To sum up, in the technical solution provided in the embodiment of the present application, by judging whether the vehicle is in the drum mode, and turning off the ramp recognition function of the vehicle when the vehicle is in the drum mode, the vehicle is prevented from being mistakenly identified as being on a ramp in the drum mode, thereby avoiding the vehicle from being affected by the engine starting in error and affecting the test results, thereby improving the test efficiency of the vehicle.

[0095] The embodiment of the present application combines the vehicle yaw acceleration, road acceleration and vehicle acceleration signals measured by the longitudinal acceleration sensor, and the HCU determines and identifies it as a drum condition (i.e., drum mode), optimizes the control algorithm, avoids miscalculation and misidentification, and ensures the smooth completion of the drum test.

[0096] In some possible implementations, after obtaining the vehicle data of the vehicle, the following steps may also be included:

[0097] 1. Within a first period of time after the vehicle speed exceeds the first threshold for the first time, identifying whether the vehicle is in a drum mode;

[0098] 2. If the vehicle is not identified as being in the rotating drum mode within a first period of time after the vehicle speed exceeds the first threshold for the first time, stop identifying whether the vehicle is in the rotating drum mode.

[0099] In the above implementation, each time the vehicle is engaged in a forward gear, if the vehicle speed exceeds the first threshold for the first time, and the vehicle is not identified as being in the drum mode within the first time period, it basically means that the forward gear is not engaged for the drum test, and the identification of whether the vehicle is in the drum mode can be stopped, saving the computing resources of the HCU. When the vehicle is engaged in a forward gear next time, it is re-identified whether the vehicle is in the drum mode.

[0100] In some possible implementations, after the ramp recognition function of the vehicle is turned off, the ramp recognition function of the vehicle is turned on again if the vehicle data satisfies a second condition. The second condition includes at least one of the following:

[0101] The absolute value of the yaw angular velocity is greater than a fourth threshold value and lasts for a second time period;

[0102] The absolute value of the longitudinal acceleration of the vehicle is greater than a fifth threshold value and lasts for a third time period;

[0103] The vehicle is turned off.

[0104] In some embodiments, the second duration may be 0.5 seconds, or may have other values. The specific value of the second duration may be set by relevant technical personnel according to actual conditions, and the embodiments of the present application do not specifically limit this.

[0105] In some embodiments, the fifth threshold may be 0.3 m / s 2 , it may also have other values, and its specific value can be set by relevant technical personnel according to actual conditions, and the embodiments of the present application do not make specific limitations on this.

[0106] In some embodiments, the third duration may be the same as the second duration, or may be different from the second duration, and this embodiment of the present application does not specifically limit this.

[0107] In some embodiments, the vehicle may be turned off (such as receiving a falling edge of the KL15 signal) because the vehicle encounters an emergency. In this case, regardless of whether the vehicle is undergoing a drum test, the ramp recognition function needs to be turned on to avoid the vehicle from rolling and improve the safety of the vehicle.

[0108] In some embodiments, if the vehicle's hill recognition function has been turned off while the vehicle is in a forward gear, when the vehicle data meets the second condition, it may indicate that the vehicle has left the drum test bench and is no longer in the drum mode. In this case, the vehicle's hill recognition function may be turned back on to assist the vehicle in driving safely on a slope, thereby improving the vehicle's driving safety.

[0109] In some possible implementations, when the vehicle is in the drum mode, after turning off the slope recognition function of the vehicle, the following steps may also be included:

[0110] 1. When the vehicle satisfies both the first and third conditions, it is determined that the vehicle switches from the drum mode to the ramp test mode, where the ramp test mode refers to a mode that simulates actual ramp driving through a roller assembly with a slope;

[0111] 2. Turn on the vehicle's ramp recognition function.

[0112] In some embodiments, the third condition includes at least one of the following: the height difference between the front wheels and the rear wheels of the vehicle is greater than a fifth threshold; the duration for which the tilt angle of the vehicle is greater than a sixth threshold reaches a fifth duration.

[0113] In some embodiments, the height difference between the front wheels and the rear wheels can be measured by a height sensor in the vehicle, and the tilt angle of the vehicle can be measured by a level detector or other equipment. Of course, there are other ways to detect and determine the height difference between the front wheels and the rear wheels and the tilt angle of the vehicle, which are not specifically limited in the embodiments of the present application.

[0114] In the above implementation, if the vehicle satisfies both the first condition and the third condition, indicating that the vehicle is being tested on a simulated ramp, the vehicle is required to automatically turn on the ramp recognition function to adapt to the ramp test mode.

[0115] The following is an embodiment of the device of the present application, which can be used to execute the embodiment of the method of the present application. For details not disclosed in the embodiment of the device of the present application, please refer to the embodiment of the method of the present application.

[0116] Please refer to Figure 4 , which shows a block diagram of a device for shutting down a ramp recognition function provided by an embodiment of the present application. The device has the function of implementing the above-mentioned ramp recognition function shutting down method example, and the function can be implemented by hardware, or by hardware executing corresponding software. The device can be the computer device introduced above, or it can be set on a computer device. The device 400 can include: a data acquisition module 410, a mode determination module 420 and a function shutting down module 430.

[0117] The data acquisition module 410 is used to acquire vehicle data of the vehicle in response to the gear position of the vehicle being switched to a forward gear position, wherein the vehicle data includes road acceleration, longitudinal acceleration data and yaw angular velocity of the vehicle.

[0118] The mode determination module 420 is used to determine that the vehicle is in a drum mode when the vehicle data meets a first condition. The drum mode refers to a mode that simulates actual road driving through a roller assembly.

[0119] The function shut-down module 430 is used to shut down the slope recognition function of the vehicle when the vehicle is in the rotating drum mode.

[0120] In some embodiments, the longitudinal acceleration data includes a first longitudinal acceleration and a second longitudinal acceleration, the first longitudinal acceleration being the vehicle acceleration when the vehicle is switched to the forward gear, and the second longitudinal acceleration being the acceleration when the vehicle speed exceeds a first threshold for the first time after the vehicle is switched to the forward gear;

[0121] The first condition includes at least one of the following:

[0122] The absolute value of the road acceleration is greater than a second threshold;

[0123] The longitudinal acceleration difference is less than a third threshold, the longitudinal acceleration difference being a difference between an absolute value of the second longitudinal acceleration and an absolute value of the first longitudinal acceleration;

[0124] The absolute value of the yaw angular velocity is less than a fourth threshold.

[0125] In some embodiments, the apparatus further comprises: an identification stop module.

[0126] The mode determination module 420 is further configured to identify whether the vehicle is in the rotating drum mode within a first time period after the vehicle speed exceeds the first threshold for the first time.

[0127] The identification stopping module is used to stop identifying whether the vehicle is in the rotating drum mode if the vehicle is not identified as being in the rotating drum mode within a first time period after the vehicle speed exceeds the first threshold for the first time.

[0128] In some embodiments, the device further includes: a function activation module.

[0129] The function activation module is used to re-activate the ramp recognition function of the vehicle when the vehicle data satisfies a second condition; wherein the second condition includes at least one of the following:

[0130] The absolute value of the yaw angular velocity is greater than a fourth threshold and lasts for a second time period;

[0131] The absolute value of the longitudinal acceleration of the vehicle is greater than a fifth threshold and lasts for a third time period;

[0132] The vehicle is turned off.

[0133] In some embodiments, the mode determination module 420 is also used to determine that the vehicle switches from the drum mode to the ramp test mode when the vehicle satisfies both the first condition and the third condition. The ramp test mode refers to a mode that simulates actual ramp driving by using a roller assembly with a slope.

[0134] The function activation module is also used to activate the slope recognition function of the vehicle.

[0135] In some embodiments, the third condition includes at least one of the following:

[0136] The height difference between the front wheels and the rear wheels of the vehicle is greater than a fifth threshold;

[0137] The time duration during which the tilt angle of the vehicle is greater than the sixth threshold reaches a fifth time duration.

[0138] To sum up, in the technical solution provided in the embodiment of the present application, by judging whether the vehicle is in the drum mode, and turning off the ramp recognition function of the vehicle when the vehicle is in the drum mode, the vehicle is prevented from being mistakenly identified as being on a ramp in the drum mode, thereby avoiding the vehicle from being affected by the engine starting in error and affecting the test results, thereby improving the test efficiency of the vehicle.

[0139] It should be noted that the device provided in the above embodiment, when implementing its functions, is only illustrated by the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the device and method embodiments provided in the above embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0140] Please refer to Figure 5 , which shows a block diagram of a terminal 500 provided in one embodiment of the present application. The terminal 500 may be an electronic device such as a mobile phone, a tablet computer, a game console, an e-book reader, a multimedia player, a wearable device, a PC, etc. The terminal is used to implement the method for closing the ramp recognition function provided in the above embodiment. Specifically:

[0141] Typically, the terminal 500 includes a processor 501 and a memory 502 .

[0142] The processor 501 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 501 may be implemented in at least one hardware form of DSP (Digital Signal Processing), FPGA (Field Programmable Gate Array), and PLA (Programmable Logic Array). The processor 501 may also include a main processor and a coprocessor. The main processor is a processor for processing data in an awake state, also known as a CPU (Central Processing Unit); the coprocessor is a low-power processor for processing data in a standby state. In some embodiments, the processor 501 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content to be displayed on the display screen. In some embodiments, the processor 501 may also include an AI (Artificial Intelligence) processor, which is used to process computing operations related to machine learning.

[0143] The memory 502 may include one or more computer-readable storage media, which may be non-transitory. The memory 502 may also include a high-speed random access memory and a non-volatile memory, such as one or more disk storage devices and flash memory storage devices. In some embodiments, the non-transitory computer-readable storage medium in the memory 502 is used to store a computer program and is configured to be executed by one or more processors to implement the above-mentioned method for closing the ramp recognition function.

[0144] In some embodiments, the terminal 500 may further optionally include: a peripheral device interface 503 and at least one peripheral device. The processor 501, the memory 502 and the peripheral device interface 503 may be connected via a bus or a signal line. Each peripheral device may be connected to the peripheral device interface 503 via a bus, a signal line or a circuit board. Specifically, the peripheral device includes: at least one of a radio frequency circuit 504, a display screen 505, an audio circuit 506 and a power supply 507.

[0145] Those skilled in the art will understand that Figure 5 The structure shown in the figure does not constitute a limitation on the terminal 500, and the terminal 500 may include more or less components than those shown in the figure, or combine some components, or adopt a different component arrangement.

[0146] In an exemplary embodiment, a computer-readable storage medium is further provided, wherein a computer program is stored in the storage medium, and when the computer program is executed by a processor, the method for closing the ramp recognition function is implemented.

[0147] In an exemplary embodiment, a computer program product is also provided. The computer program product is loaded and executed by a processor to implement the above-mentioned method for closing the ramp recognition function.

[0148] It should be understood that the "plurality" mentioned in this article refers to two or more. "And / or" describes the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0149] The above description is only an exemplary embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A method for turning off a ramp recognition function, characterized in that: The method comprises: In response to the gear position of the vehicle being switched to a forward gear position, acquiring vehicle data of the vehicle, the vehicle data including road acceleration, longitudinal acceleration data and yaw angular velocity of the vehicle; In the case where the vehicle data satisfies the first condition, determining that the vehicle is in a drum mode, wherein the drum mode refers to a mode of simulating actual road driving through a roller assembly; When the vehicle is in the rotating drum mode, the hill recognition function of the vehicle is turned off.

2. The method according to claim 1, characterized in that The longitudinal acceleration data includes a first longitudinal acceleration and a second longitudinal acceleration, the first longitudinal acceleration being the vehicle acceleration when the vehicle is switched to the forward gear, and the second longitudinal acceleration being the acceleration when the vehicle speed exceeds a first threshold for the first time after the vehicle is switched to the forward gear; The first condition includes at least one of the following: The absolute value of the road acceleration is greater than a second threshold; The longitudinal acceleration difference is less than a third threshold, the longitudinal acceleration difference being a difference between an absolute value of the second longitudinal acceleration and an absolute value of the first longitudinal acceleration; The absolute value of the yaw angular velocity is less than a fourth threshold.

3. The method according to claim 1, characterized in that After obtaining the vehicle data of the vehicle, the method further includes: within a first time period after the vehicle speed exceeds the first threshold for the first time, identifying whether the vehicle is in the rotating drum mode; If the vehicle is not identified as being in the rotating drum mode within a first period of time after the vehicle speed exceeds the first threshold for the first time, the identification of whether the vehicle is in the rotating drum mode is stopped.

4. The method according to claim 1, characterized in that: After the ramp recognition function of the vehicle is turned off, the method further includes: When the vehicle data satisfies a second condition, reopening the ramp recognition function of the vehicle; wherein the second condition includes at least one of the following: The absolute value of the yaw angular velocity is greater than a fourth threshold and lasts for a second time period; The absolute value of the longitudinal acceleration of the vehicle is greater than a fifth threshold and lasts for a third time period; The vehicle is turned off.

5. The method according to claim 1, characterized in that When the vehicle is in the rotating drum mode, after turning off the slope recognition function of the vehicle, the method further includes: When the vehicle satisfies both the first condition and the third condition, determining that the vehicle is switched from the drum mode to a ramp test mode, wherein the ramp test mode refers to a mode of simulating actual ramp driving by a roller assembly with a slope; Turn on the hill start recognition function of the vehicle.

6. The method according to claim 5, characterized in that The third condition includes at least one of the following: The height difference between the front wheels and the rear wheels of the vehicle is greater than a fifth threshold; The time duration during which the tilt angle of the vehicle is greater than the sixth threshold reaches a fifth time duration.

7. A device for shutting down a ramp recognition function, characterized in that: The device comprises: a data acquisition module, configured to acquire vehicle data of the vehicle in response to the gear position of the vehicle being switched to a forward gear position, wherein the vehicle data includes a road acceleration, longitudinal acceleration data, and yaw angular velocity of the vehicle; a mode determination module, configured to determine, when the vehicle data satisfies a first condition, that the vehicle is in a drum mode, wherein the drum mode refers to a mode of simulating actual road driving through a roller assembly; The function shut-down module is used to shut down the slope recognition function of the vehicle when the vehicle is in the rotating drum mode.

8. A vehicle-mounted terminal, characterized in that: The vehicle-mounted terminal includes a processor and a memory, wherein a computer program is stored in the memory, and the computer program is loaded and executed by the processor to implement the method for shutting down the slope recognition function as described in any one of claims 1 to 6.

9. A vehicle, characterized in that: The vehicle comprises a processor and a memory, wherein a computer program is stored in the memory, and the computer program is loaded and executed by the processor to implement the method for shutting down the slope recognition function as described in any one of claims 1 to 6.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, which is loaded and executed by a processor to implement the method for shutting down the ramp recognition function as described in any one of claims 1 to 6.

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