Method and apparatus for disabling hill recognition function, and vehicle-mounted terminal and storage medium

Abstract

A method for disabling a hill recognition function, the method relating to the technical field of vehicle control. The method comprises: in response to the gear of a vehicle being shifted to a drive gear, acquiring vehicle data of the vehicle, wherein the vehicle data comprises the road surface acceleration, longitudinal acceleration data and yaw rate of the vehicle (110); when the vehicle data meets a first condition, determining that the vehicle is in a chassis dynamometer mode, wherein the chassis dynamometer mode refers to a mode of simulating actual road driving by means of a roller assembly (120); and when the vehicle is in the chassis dynamometer mode, disabling a hill recognition function of the vehicle (130). The testing efficiency of vehicles can thus be improved. Further provided are an apparatus for disabling a hill recognition function, and a vehicle-mounted terminal and a storage medium.

Description

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

[0001] The present application claims priority from the Chinese patent application No. 202411374234.2 filed on September 29, 2024 and entitled "Method and device for closing ramp recognition function, vehicle-mounted terminal and storage medium", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] Embodiments of the present application relate to the technical field of vehicle control, in particular to a method and device for closing ramp recognition function, a vehicle-mounted terminal and a storage medium. BACKGROUND

[0003] A drum test bench is a relatively efficient and accurate vehicle test device.

[0004] In related technologies, when a vehicle is tested on a drum test bench, the vehicle can be put into a drum mode so that the vehicle can adapt to the drum test process.

[0005] In the above related technology, after the vehicle enters the drum mode, some misrecognition phenomena may occur, such as misrecognizing that the vehicle is on a ramp, which may cause the engine to stop incorrectly, thereby causing the test to fail and affecting the vehicle test efficiency. SUMMARY

[0006] Embodiments of the present application provide a method and device for closing ramp recognition function, a vehicle-mounted terminal and a storage medium, which can improve the test efficiency of the vehicle. The technical solutions provided by embodiments of the present application are as follows:

[0007] According to an aspect of the embodiments of the present application, a method for closing ramp recognition function is provided, the method comprising:

[0008] In response to the gear of the vehicle being switched to the forward gear, obtaining vehicle data of the vehicle, the vehicle data comprising road surface acceleration, longitudinal acceleration data and yaw angular velocity of the vehicle;

[0009] In a case where the vehicle data meets a first condition, determining that the vehicle is in a drum mode, the drum mode being a mode of simulating actual road driving through a roller assembly;

[0010] In a case where the vehicle is in the drum mode, closing the ramp recognition function of the vehicle.

[0011] In some embodiments, the longitudinal acceleration data comprises a first longitudinal acceleration and a second longitudinal acceleration, the first longitudinal acceleration refers to a vehicle acceleration when the vehicle switches to the forward gear, and the second longitudinal acceleration indicates an acceleration when a vehicle speed first exceeds a first threshold after the vehicle switches to the forward gear;

[0012] The first condition comprises at least one of:

[0013] An absolute value of the road surface acceleration is greater than a second threshold;

[0014] A 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;

[0015] An absolute value of the yaw angular velocity is less than a fourth threshold.

[0016] In some embodiments, after the vehicle data of the vehicle is acquired, the method further comprises:

[0017] Within a first time duration after the vehicle speed first exceeds the first threshold, determining whether the vehicle is in the drum mode;

[0018] Within the first time duration after the vehicle speed first exceeds the first threshold, if the vehicle is not determined to be in the drum mode, stopping determining whether the vehicle is in the drum mode.

[0019] In some embodiments, after the hill start assist function of the vehicle is closed, the method further comprises:

[0020] In a case where the vehicle data satisfies a second condition, reopening the hill start assist function of the vehicle; wherein the second condition comprises at least one of:

[0021] An absolute value of the yaw angular velocity is greater than a fourth threshold and lasts for a second time duration;

[0022] An absolute value of a longitudinal acceleration of the vehicle is greater than a fifth threshold and lasts for a third time duration;

[0023] The vehicle is turned off.

[0024] In some embodiments, after the hill start assist function of the vehicle is closed in the case where the vehicle is in the drum mode, the method further comprises:

[0025] In a case where the vehicle satisfies the first condition and a third condition simultaneously, determining that the vehicle switches from the drum mode to a hill test mode, the hill test mode referring to a mode of simulating actual hill driving through a roller assembly with a slope;

[0026] turning on a hill start assist function of the vehicle.

[0027] In some embodiments, the third condition comprises at least one of:

[0028] a height difference between a front wheel and a rear wheel of the vehicle is greater than a fifth threshold value;

[0029] a duration in which an inclination angle of the vehicle is greater than a sixth threshold value reaches a fifth duration.

[0030] According to an aspect of some embodiments of the present application, there is provided a hill start assist function turning off apparatus, comprising:

[0031] a data obtaining module configured to obtain vehicle data of the vehicle in response to a gear of the vehicle being switched to a forward gear, the vehicle data comprising road surface acceleration, longitudinal acceleration data and yaw angular velocity of the vehicle;

[0032] a mode determining module configured to determine that the vehicle is in a drum mode in a case where the vehicle data satisfies a first condition, the drum mode being a mode in which actual road driving is simulated by a roller assembly;

[0033] a function turning off module configured to turn off a hill start assist function of the vehicle in a case where the vehicle is in the drum mode.

[0034] In some embodiments, the longitudinal acceleration data comprises a first longitudinal acceleration and a second longitudinal acceleration, the first longitudinal acceleration being a vehicle acceleration when the vehicle is switched to the forward gear, and the second longitudinal acceleration being an acceleration when a vehicle speed first exceeds a first threshold value after the vehicle is switched to the forward gear;

[0035] the first condition comprises at least one of:

[0036] an absolute value of the road surface acceleration is greater than a second threshold value;

[0037] a longitudinal acceleration difference is less than a third threshold value, 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;

[0038] an absolute value of the yaw angular velocity is less than a fourth threshold value.

[0039] In some embodiments, the apparatus further comprises:

[0040] the mode determining module is further configured to identify whether the vehicle is in the drum mode within a first duration after the vehicle speed first exceeds the first threshold value;

[0041] The identification stopping module is configured to stop identifying whether the vehicle is in the drum mode if the vehicle is not identified as being in the drum mode within a first time length after the speed of the vehicle first exceeds the first threshold value.

[0042] In some embodiments, the device further comprises:

[0043] The function opening module is configured to reopen the hill identification function of the vehicle if the vehicle data satisfies a second condition, wherein the second condition comprises at least one of:

[0044] An absolute value of the yaw rate is greater than a fourth threshold value and lasts for a second time length;

[0045] An absolute value of the longitudinal acceleration of the vehicle is greater than a fifth threshold value and lasts for a third time length;

[0046] The vehicle is turned off.

[0047] In some embodiments, the mode determining module is further configured to determine that the vehicle switches from the drum mode to a hill test mode if the vehicle satisfies the first condition and a third condition simultaneously, wherein the hill test mode refers to a mode of simulating actual hill driving through a roller assembly with a slope.

[0048] The function opening module is further configured to open the hill identification function of the vehicle.

[0049] In some embodiments, the third condition comprises at least one of:

[0050] A height difference between front wheels and rear wheels of the vehicle is greater than a fifth threshold value;

[0051] A time length during which an inclination angle of the vehicle is greater than a sixth threshold value reaches a fifth time length.

[0052] According to an aspect of some embodiments of the present application, a computer device is provided, which comprises a processor and a memory, and the memory stores a computer program, which is loaded and executed by the processor to implement the above-mentioned hill identification function closing method.

[0053] According to an aspect of some embodiments of the present application, a computer readable storage medium is provided, which stores a computer program, and the computer program is loaded and executed by a processor to implement the above-mentioned hill identification function closing method.

[0054] According to an aspect of some embodiments of the present application, a computer program product is provided, which is loaded and executed by a processor to implement the above-mentioned hill identification function closing method.

[0055] The technical scheme provided by the embodiment of the application can include the following beneficial effects:

[0056] By judging whether the vehicle is in the drum mode, and in the case that the vehicle is in the drum mode, the slope recognition function of the vehicle is closed, so as to avoid that the vehicle misrecognizes being on a slope in the drum mode, thereby avoiding that the vehicle is misstarted due to the engine, and improving the test efficiency of the vehicle.

[0057] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the application. BRIEF DESCRIPTION OF DRAWINGS

[0058] Fig. 1 is a flowchart of a method for closing a slope recognition function provided by an embodiment of the application;

[0059] Fig. 2 is a schematic diagram of a method for closing a slope recognition function provided by an embodiment of the application;

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

[0061] Fig. 4 is a block diagram of a closing device for a slope recognition function provided by an embodiment of the application;

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

[0063] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The following description is with reference to the drawings, in which like numerals indicate like elements, unless otherwise specified. The embodiments described in the following exemplary embodiments are not meant to represent all embodiments consistent with the application. Rather, they are merely examples of methods consistent with some aspects of the application as detailed in the appended claims.

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

[0065] The drum test bench as an important device for automobile performance test has at least the following advantages:

[0066] 1. The drum test bench is equipped with an advanced control system 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 testing, the drum test bench testing is less expensive and is not affected by weather, driving skills and other objective conditions, which can shorten the test period;

[0068] 3. Testing on the test bench can ensure the safety of the test personnel and avoid the risk of traffic accidents that may occur due to road testing.

[0069] However, the drum test bench also has the problem of simulation limitations. Although the drum test bench can simulate various road and driving conditions, it still has limitations compared to actual road testing, and many misidentifications may occur, such as misidentifying that the vehicle is on a slope.

[0070] Generally, a car can enter the drum mode through a diagnostic instrument, a combination of keys, etc. However, in the drum experiment, acceleration and deceleration can cause the vehicle to appear to be looking up or down, and the body is not parallel to the ground, and the slope algorithm may incorrectly identify that the vehicle is climbing a slope. If the vehicle is identified on the slope, the engine is not allowed to stop, resulting in unexpected engine start, which causes the drum experiment to fail. 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 calculation in the drum working condition (i.e., drum mode), avoiding calculation errors that cause the experiment to fail.

[0071] The execution subject of each step of the method provided by the embodiments of the present application can be a computer device, which refers to an electronic device with data calculation, processing and storage capabilities. The computer device can be a terminal such as a vehicle terminal, a PC (Personal Computer), a tablet computer, a smart phone, a wearable device, a smart robot, etc.; or a server. The server can be a standalone physical server, a server cluster or a distributed system composed of multiple physical servers, or a cloud server providing cloud computing services. In some embodiments, the computer device can be a computer device arranged on a vehicle, or can be integrated in a vehicle.

[0072] In the following, several embodiments are used to introduce and illustrate the technical solutions of the present application.

[0073] Please refer to FIG. 1, which shows a flowchart of the method for closing the slope recognition function provided by an embodiment of the present application. In this embodiment, the method is mainly applied to the computer device introduced above. The method can include at least one of the following steps (110-130).

[0074] At step 110, in response to the gear of the vehicle being switched to the forward gear, vehicle data of the vehicle is acquired, the vehicle data including road surface acceleration, longitudinal acceleration data and yaw rate of the vehicle.

[0075] In some embodiments, each gear in the vehicle is used to represent different driving modes and functions. For example, for an automatic transmission vehicle, D represents the forward gear for normal driving, R represents the reverse gear for reversing, N represents the neutral gear for starting or towing, P represents the parking gear for parking, L represents the low gear for providing more torque, suitable for climbing or heavy load, S represents the sports gear for providing higher shift speed, and M represents the manual mode for allowing the driver to manually control the gear shift. For a manual transmission vehicle, there are generally five forward gears (i.e. 1st gear, 2nd gear, 3rd gear, 4th gear, 5th gear) and one reverse gear, wherein the 1st to 5th gears provide increasing speed. The 1st gear provides the maximum torque, suitable for starting on an uphill or heavy load, and the 5th gear provides the highest speed, suitable for smooth sections such as highways. Manual transmission requires the driver to change the gear engagement within the transmission by operating the gear lever, thereby achieving gear shifting.

[0076] In some embodiments, the vehicle data refers to the current and latest relevant data of the vehicle, such as the current road surface acceleration, longitudinal acceleration data, yaw rate, etc. of the vehicle.

[0077] In some embodiments, the road surface acceleration refers to the acceleration of the vehicle relative to the road surface contacted by the wheels, which can be obtained by taking the derivative of the vehicle speed. In some embodiments, as shown in FIG. 2, a vehicle speed sensor measures the vehicle speed to obtain a vehicle speed signal, which is then sent to the HCU (Hybrid Control Unit, hybrid system controller). The HCU takes the derivative of the vehicle speed to obtain the road surface acceleration a1.

[0078] In some embodiments, the longitudinal acceleration data can be measured by a longitudinal acceleration sensor as shown in FIG. 3. 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 driving uphill or downhill, the longitudinal acceleration sensor measurement value AX = relative ground acceleration v + g x sin a (a is the slope of the road).

[0079] In some embodiments, the yaw rate can be measured by a yaw rate sensor.

[0080] At step 120, in the case where the vehicle data satisfies the first condition, it is determined that the vehicle is in the drum mode, which refers to a mode of simulating actual road driving through the roller assembly.

[0081] In some embodiments, if the vehicle data satisfies the characteristics of the drum test, i.e., 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 switches to the forward gear, and the second longitudinal acceleration indicates the acceleration when the vehicle speed first exceeds the first threshold after the vehicle switches to the forward gear; the first condition includes at least one of the following:

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

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

[0085] Condition 2: the longitudinal acceleration difference is less than a third threshold, and the longitudinal acceleration difference is the 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 represented as |AX1|) and the second longitudinal acceleration (which can be represented 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 value of |AX2|-|AX1| as the longitudinal acceleration difference, and compares the difference value of |AX2|-|AX1| with the third threshold. In some embodiments, the third threshold can be 0.5 m / s 2 , or other values. The specific value of the third threshold can be set by the relevant technical personnel according to the actual situation, and the embodiments of the present application do not make specific limitations here.

[0087] In some embodiments, the first threshold can be 3.5 m / s 2 , or other values. The specific value of the first threshold can be set by the relevant technical personnel according to the actual situation, and the embodiments of the present application do not make specific limitations here.

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

[0089] In some embodiments, the yaw rate can be represented as yawrate, and the absolute value of the yaw rate can be represented as |yawrate|. In some embodiments, the fourth threshold value can be 0.5° / s, and can also have other values. The specific value of the fourth threshold value can be set by the relevant technical personnel according to the actual situation, and the embodiments of the present application do not make specific limitations thereto.

[0090] In some embodiments, if the duration in which conditions 1-3 are simultaneously met exceeds a set duration, it is determined that the vehicle is in the drum mode, the slope recognition function of the vehicle is closed, and the slope is set to a default value of 0. In some embodiments, the set duration can be 3000 milliseconds, and can also have other values. The specific value of the set duration can be set by the relevant technical personnel according to the actual situation, and the embodiments of the present application do not make specific limitations thereto.

[0091] Step 130, in the case where the vehicle is in the drum mode, the slope recognition function of the vehicle is closed.

[0092] In some embodiments, if it is determined that the vehicle is in the drum mode, the slope recognition function of the vehicle is closed to avoid misidentifying that the vehicle is driving on a slope.

[0093] In the technical scheme provided by the embodiments of the present application, in a vehicle in a drum test, the vehicle is identified to enter the drum mode, and the slope calculation error is suppressed through an optimization algorithm. Thus, the vehicle can only enter the drum mode, and logic confusion and strategy errors are avoided, which can cause other working conditions to be mistriggered, so as to improve the success probability of the drum test.

[0094] In summary, in the technical scheme provided by the embodiments of the present application, whether the vehicle is in the drum mode is judged, and in the case where the vehicle is in the drum mode, the slope recognition function of the vehicle is closed, so as to avoid misidentifying that the vehicle is on a slope in the drum mode, thereby avoiding that the vehicle is misstarted due to the engine, and improving the test efficiency of the vehicle.

[0095] In the embodiments of the present application, the vehicle acceleration signals measured by the vehicle yaw acceleration, road surface acceleration and longitudinal acceleration sensors are combined to be identified as the drum working condition (i.e., the drum mode) by the HCU, the control algorithm is optimized, the calculation error and misidentification are avoided, and the drum test is ensured to be completed smoothly.

[0096] In some possible implementation manners, after the vehicle data of the vehicle is acquired, the following steps can be further included:

[0097] 1. In a first duration after the vehicle speed first exceeds the first threshold value, whether the vehicle is in the drum mode is identified.

[0098] 2. In a first time period after the vehicle speed first exceeds the first threshold value, if the vehicle is not identified as being in the drum mode, stop identifying whether the vehicle is in the drum mode.

[0099] In some embodiments, the first threshold value can be set to 3.5 m / s2, and the first time period can be set to 4000 milliseconds.

[0100] In the above implementation, each time after the vehicle is put in the forward gear, if the vehicle is not identified as being in the drum mode within a first time period after the vehicle speed first exceeds a first threshold value, it basically indicates that this time of putting the vehicle in the forward gear is not for the drum test, and thus the identification of whether the vehicle is in the drum mode can be stopped to save the computing resources of the HCU. When the vehicle is put in the forward gear next time, the identification of whether the vehicle is in the drum mode is re-performed.

[0101] In some possible implementations, after the hill start assist function of the vehicle is turned off, the hill start assist function of the vehicle is turned on again when the vehicle data satisfies a second condition. The second condition includes at least one of the following:

[0102] The absolute value of the yaw rate is greater than a fourth threshold value and lasts for a second time period;

[0103] The absolute value of the longitudinal acceleration of the vehicle is greater than a fifth threshold value and lasts for a third time period;

[0104] The vehicle is turned off.

[0105] In some embodiments, the second time period can be 0.5 seconds, or can have other values, and the specific value of the second time period can be set by a person skilled in the art according to actual conditions, and the embodiments of the present application do not make specific limitations thereto.

[0106] In some embodiments, the fifth threshold value can be 0.3 m / s 2 , or can have other values, and the specific value thereof can be set by a person skilled in the art according to actual conditions, and the embodiments of the present application do not make specific limitations thereto.

[0107] In some embodiments, the third time period can be the same as the second time period, or can be different from the second time period, and the embodiments of the present application do not make specific limitations thereto.

[0108] In some embodiments, the vehicle being turned off (such as receiving a KL15 (Klemme, terminal) signal falling edge) can be due to the vehicle encountering an emergency situation, and thus the hill start assist function needs to be turned on regardless of whether the vehicle is performing the drum test, so as to avoid the vehicle rolling as much as possible and improve the safety of the vehicle.

[0109] In some embodiments, during the process that the vehicle keeps the drive gear engaged, if the hill identification function of the vehicle has been turned off, and the vehicle data meets the second condition, it can be indicated that the vehicle has left the drum test bench and is no longer in the drum mode, and then the hill identification function of the vehicle can be turned on again to assist the vehicle to drive safely on the slope and improve the driving safety of the vehicle.

[0110] In some possible implementation ways, after the hill identification function of the vehicle is turned off when the vehicle is in the drum mode, the following step can be further included:

[0111] 1. When the vehicle meets the first condition and the third condition at the same time, it is determined that the vehicle is switched from the drum mode to the slope test mode, and the slope test mode refers to a mode for simulating actual slope driving through a roller assembly with a slope.

[0112] 2. The hill identification function of the vehicle is turned on.

[0113] 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 value; and the inclination angle of the vehicle is greater than a sixth threshold value for a fifth time length.

[0114] In some embodiments, the height difference between the front wheels and the rear wheels of the vehicle can be measured by a height sensor in the vehicle, and the inclination angle of the vehicle can be measured by a level detector or other equipment. Of course, the height difference between the front wheels and the rear wheels of the vehicle and the inclination angle of the vehicle can also be determined in other ways, which are not limited in the embodiments of the present application.

[0115] In the above implementation ways, if the vehicle meets the first condition and the third condition at the same time, it indicates that the vehicle is testing on the simulated slope, and the hill identification function of the vehicle needs to be turned on automatically to adapt to the slope test mode.

[0116] The following is an apparatus embodiment of the present application, which can be used to execute the method embodiments of the present application. For details not disclosed in the apparatus embodiments of the present application, please refer to the method embodiments of the present application.

[0117] Please refer to FIG. 4, which shows a block diagram of a hill identification function turning-off apparatus according to an embodiment of the present application. The apparatus has the functions of the above-mentioned hill identification function turning-off method examples, which can be implemented by hardware or corresponding software executed by hardware. The apparatus can be the computer device introduced above or be arranged on the computer device. The apparatus 400 can include a data acquisition module 410, a mode determination module 420 and a function turning-off module 430.

[0118] The data acquisition module 410 is configured to acquire vehicle data of the vehicle in response to a gear of the vehicle being switched to a forward gear, the vehicle data comprising road surface acceleration, longitudinal acceleration data and yaw angular velocity of the vehicle.

[0119] The mode determination module 420 is configured to determine that the vehicle is in a drum mode in a case where the vehicle data satisfies a first condition, the drum mode being a mode in which actual road driving is simulated by a roller assembly.

[0120] The function closing module 430 is configured to close a hill start assist function of the vehicle in a case where the vehicle is in the drum mode.

[0121] In some embodiments, the longitudinal acceleration data comprises a first longitudinal acceleration and a second longitudinal acceleration, the first longitudinal acceleration being a vehicle acceleration when the vehicle is switched to the forward gear, and the second longitudinal acceleration being an acceleration when a vehicle speed first exceeds a first threshold after the vehicle is switched to the forward gear.

[0122] The first condition comprises at least one of:

[0123] An absolute value of the road surface acceleration is greater than a second threshold;

[0124] A 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;

[0125] An absolute value of the yaw angular velocity is less than a fourth threshold.

[0126] In some embodiments, the apparatus further comprises an identification stopping module.

[0127] The mode determination module 420 is further configured to identify whether the vehicle is in the drum mode within a first time length after the vehicle speed first exceeds the first threshold.

[0128] The identification stopping module is configured to stop identifying whether the vehicle is in the drum mode in a case where the vehicle is not identified as being in the drum mode within the first time length after the vehicle speed first exceeds the first threshold.

[0129] In some embodiments, the apparatus further comprises a function opening module.

[0130] The function opening module is configured to reopen the hill start assist function of the vehicle in a case where the vehicle data satisfies a second condition, the second condition comprising at least one of:

[0131] an absolute value of the yaw angular velocity is greater than a fourth threshold value and lasts for a second time length;

[0132] an absolute value of the longitudinal acceleration of the vehicle is greater than a fifth threshold value and lasts for a third time length;

[0133] the vehicle is turned off.

[0134] In some embodiments, the mode determining module 420 is further configured to determine that the vehicle switches from the drum mode to a ramp test mode when the first condition and a third condition are both met, the ramp test mode being a mode for simulating actual ramp driving through a roller assembly with a slope.

[0135] The function opening module is further configured to open a slope recognition function of the vehicle.

[0136] In some embodiments, the third condition comprises at least one of the following:

[0137] a height difference between front wheels and rear wheels of the vehicle is greater than a fifth threshold value;

[0138] a time length during which an inclination angle of the vehicle is greater than a sixth threshold value reaches a fifth time length.

[0139] In summary, in the technical scheme provided by the embodiments of the present application, whether the vehicle is in the drum mode is determined, and the slope recognition function of the vehicle is closed when the vehicle is in the drum mode, so that the vehicle is prevented from being misrecognized as being on a slope in the drum mode, and the test result is prevented from being affected by the misstart of the engine, and the test efficiency of the vehicle is improved.

[0140] It should be noted that the apparatus provided in the above embodiments is only used as an example for dividing the above functions into different functional modules in achieving the functions, and in actual applications, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the above-described functions. In addition, the apparatus and method embodiments provided in the above embodiments belong to the same concept, and the specific implementation process is described in detail in the method embodiments, which will not be described here.

[0141] Please refer to FIG. 5, which shows a structural block diagram of a terminal 500 provided in an embodiment of the present application. The terminal 500 can be an electronic device such as a mobile phone, a tablet computer, a game console, an e-book reader, a multimedia playing device, a wearable device, a PC, etc. The terminal is used to implement the method for closing the slope recognition function provided in the above embodiments. Specifically:

[0142] Generally, the terminal 500 includes a processor 501 and a memory 502.

[0143] The processor 501 can include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor 501 can be implemented in at least one of a hardware form of a DSP (Digital Signal Processing), an FPGA (Field Programmable Gate Array), a PLA (Programmable Logic Array). The processor 501 can also include a main processor and a co-processor, the main processor being a processor for processing data in an awake state, also referred to as a CPU (Central Processing Unit), and the co-processor being a low-power processor for processing data in a standby state. In some embodiments, the processor 501 can be integrated with a GPU (Graphics Processing Unit) for rendering and drawing content required to be displayed by the display screen. In some embodiments, the processor 501 can further include an AI (Artificial Intelligence) processor for processing computing operations related to machine learning.

[0144] The memory 502 can include one or more computer-readable storage media that can be non-transitory. The memory 502 can also include a high-speed random access memory, and a nonvolatile memory such as one or more disk storage devices, flash 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 identification function.

[0145] In some embodiments, the terminal 500 can also 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 can be connected through a bus or a signal line. Each peripheral device can be connected to the peripheral device interface 503 through 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.

[0146] Those skilled in the art can understand that the structure shown in FIG. 5 does not constitute a limitation on the terminal 500, and can include more or fewer components than illustrated, or combine certain components, or adopt a different component arrangement.

[0147] In the example embodiment, a computer readable storage medium is also provided, the storage medium storing a computer program, the computer program being executed by a processor to implement the above-mentioned method for closing the hill start assist function.

[0148] In the example embodiment, a computer program product is also provided, the computer program product being loaded and executed by a processor to implement the above-mentioned method for closing the hill start assist function.

[0149] It should be understood that "multiple" referred to herein means two or more. The "and / or" describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents that the associated objects before and after are in an "or" relationship.

[0150] The above only describes the example embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, 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 of turning off a hill start assist function, characterized by, The method comprises: in response to the gear of the vehicle being switched to the forward gear, acquiring vehicle data of the vehicle, the vehicle data comprising road surface acceleration, longitudinal acceleration data and yaw angular velocity of the vehicle; in a case where the vehicle data satisfies a first condition, determining that the vehicle is in a drum mode, the drum mode being a mode of simulating actual road driving by a roller assembly; in a case where the vehicle is in the drum mode, closing a hill start assist function of the vehicle.

2. The method of claim 1, wherein, The longitudinal acceleration data comprises a first longitudinal acceleration and a second longitudinal acceleration, the first longitudinal acceleration being a vehicle acceleration when the vehicle is switched to the forward gear, and the second longitudinal acceleration indicating an acceleration when a vehicle speed first exceeds a first threshold after the vehicle is switched to the forward gear; The first condition comprises at least one of: an absolute value of the road surface acceleration being greater than a second threshold; a longitudinal acceleration difference being 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; an absolute value of the yaw angular velocity being less than a fourth threshold.

3. The method of claim 1, wherein, After the acquiring of the vehicle data of the vehicle, the method further comprises: within a first time length after the vehicle speed first exceeds the first threshold, identifying whether the vehicle is in the drum mode; in a case where the vehicle is not identified as the drum mode within the first time length after the vehicle speed first exceeds the first threshold, stopping identification of whether the vehicle is in the drum mode.

4. The method of claim 1, wherein, After the closing of the hill start assist function of the vehicle, the method further comprises: in a case where the vehicle data satisfies a second condition, reopening the hill start assist function of the vehicle; wherein the second condition comprises at least one of: an absolute value of the yaw angular velocity being greater than the fourth threshold and lasting a second time length; an absolute value of a longitudinal acceleration of the vehicle being greater than a fifth threshold and lasting a third time length; the vehicle being turned off.

5. The method of claim 1, wherein, After the closing of the hill start assist function of the vehicle in the case where the vehicle is in the drum mode, the method further comprises: in a case where the vehicle simultaneously satisfies the first condition and a third condition, determining that the vehicle is switched from the drum mode to a hill test mode, the hill test mode being a mode of simulating actual hill driving by a roller assembly with a slope; reopening the hill start assist function of the vehicle.

6. The method of claim 5, wherein, The third condition comprises at least one of: a height difference between front wheels and rear wheels of the vehicle being greater than a fifth threshold; a time length during which an inclination angle of the vehicle is greater than a sixth threshold reaching a fifth time length.

7. A ramp recognition function disabling device characterized by comprising: The device comprises: a data acquisition module, configured to acquire vehicle data of the vehicle in response to a gear of the vehicle being switched to a forward gear, the vehicle data comprising road surface acceleration, longitudinal acceleration data and yaw angular velocity of the vehicle; a mode determination module, configured to determine that the vehicle is in a drum mode in a case where the vehicle data satisfies a first condition, the drum mode being a mode of simulating actual road driving by a roller assembly; a function closing module, configured to close a hill start assist function of the vehicle in a case where the vehicle is in the drum mode.

8. A vehicle terminal, characterized by comprising: The vehicle-mounted terminal comprises a processor and a memory, the memory stores a computer program, the computer program is loaded and executed by the processor to realize the method for closing the slope identification function in any one of claims 1 to 6.

9. A vehicle characterized by comprising: The vehicle comprises a processor and a memory, the memory stores a computer program, the computer program is loaded and executed by the processor to realize the method for closing the slope identification function 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, the computer program is loaded and executed by the processor to realize the method for closing the slope identification function in any one of claims 1 to 6.

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