Engine vibration suppression control strategy generation method, device, equipment and storage medium

Abstract

The present invention discloses a method, device, equipment and storage medium for generating an engine vibration suppression control strategy. The present invention discloses obtaining a temperature to be tested corresponding to a mount to be tested in a vehicle to be tested, adjusting the temperature of the mount to be tested according to the temperature to be tested, controlling the operation of the engine in the vehicle to be tested, and collecting the current vibration information of the vehicle to be tested during operation, obtaining the current speed of the engine when the current vibration information meets a preset condition, and generating an engine vibration suppression control strategy according to the current speed; because the present invention adjusts the temperature of the mount to be tested according to the temperature to be tested, and then collects the current vibration information of the vehicle to be tested during the operation of the engine, when the current vibration information meets the preset condition, generating an engine vibration suppression control strategy according to the current speed of the engine, thereby achieving effective vibration suppression of the engine according to the vibration suppression control strategy in a low temperature environment, reducing the vibration of the vehicle, and improving the driving experience of the vehicle.

Description

Technical Field

[0001] The present invention relates to the field of vehicle testing technology, and in particular to a method, device, equipment and storage medium for generating an engine vibration suppression control strategy. Background Art

[0002] With the development of science and technology and the progress of society, cars have gradually become popular. As the vibration reduction system of the engine, the vibration isolation rate of the engine mount of the car deteriorates as the temperature decreases. When the driver drives in a low temperature area (such as the Northeast), the stiffness and hardness of the engine mount material increase due to the low temperature, resulting in a decrease in the vibration reduction performance of the engine mount. The current engine mount cannot effectively suppress the vibration of the engine in a low temperature environment, resulting in a poor driving experience for the driver.

[0003] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0004] The main purpose of the present invention is to provide a method, device, equipment and storage medium for generating an engine vibration suppression control strategy, aiming to solve the technical problem that the prior art cannot effectively suppress the vibration of the engine in a low temperature environment, resulting in a poor driving experience for the driver.

[0005] To achieve the above object, the present invention provides a method for generating an engine vibration suppression control strategy, the method comprising the following steps:

[0006] Obtaining a temperature to be measured corresponding to a suspension to be measured in the vehicle to be measured;

[0007] Adjusting the temperature of the mount to be tested according to the temperature to be tested, controlling the operation of the engine in the vehicle to be tested, and collecting current vibration information of the vehicle to be tested during the operation;

[0008] When the current vibration information meets a preset condition, the current rotation speed of the engine is acquired, and a vibration suppression control strategy of the engine is generated according to the current rotation speed.

[0009] Optionally, the temperature of the mount to be tested is adjusted according to the temperature to be tested, the engine operation in the vehicle to be tested is controlled, and current vibration information of the vehicle to be tested during operation is collected, including:

[0010] Adjusting the temperature of the suspension to be tested according to the temperature to be tested;

[0011] Acquiring speed information of the engine in the vehicle to be tested;

[0012] Determining a speed regulation strategy of the engine according to the speed information and the temperature to be measured;

[0013] The engine operation is controlled according to the speed regulation strategy, and current vibration information of the vehicle to be tested is collected during the operation.

[0014] Optionally, determining the speed regulation strategy of the engine according to the speed information and the temperature to be measured includes:

[0015] Determine a speed adjustment interval of the engine and a speed adjustment interval corresponding to the speed adjustment interval according to the speed information;

[0016] The speed regulation strategy of the engine is determined according to the speed regulation range, the speed regulation interval and the temperature to be measured.

[0017] Optionally, controlling the engine to run according to the speed regulation strategy and collecting current vibration information of the vehicle to be tested during the running process includes:

[0018] Acquiring structural information of the vehicle to be tested;

[0019] Determine each vibration measurement point on the vehicle to be tested according to the structural information;

[0020] The engine operation is controlled according to the speed regulation strategy, and current vibration information of each vibration measuring point during the operation is collected.

[0021] Optionally, when the current vibration information meets a preset condition, before obtaining the current speed of the engine and generating the vibration suppression control strategy of the engine according to the current speed, the method further includes:

[0022] Determine the distance information between each vibration measurement point and the driving position on the vehicle to be tested according to the structural information;

[0023] Determine the vibration weight corresponding to each vibration measurement point according to the distance information;

[0024] The preset conditions of each vibration measuring point are generated according to the vibration weight and the structural information.

[0025] Optionally, the step of obtaining a temperature to be measured corresponding to a mount to be measured in the vehicle to be measured includes:

[0026] Obtaining material information corresponding to the suspension to be tested in the vehicle to be tested;

[0027] Determine, according to the material information, a temperature interval to be measured of the suspension to be measured and a temperature interval corresponding to the temperature interval to be measured;

[0028] The measured temperature corresponding to the measured suspension is determined according to the measured temperature range and the temperature interval.

[0029] Optionally, determining the temperature interval to be measured of the suspension to be measured and the temperature interval corresponding to the temperature interval to be measured according to the material information includes:

[0030] Determine a property mapping table corresponding to the suspension to be tested according to the material information;

[0031] Determine, according to the property mapping table, a property change interval corresponding to the mount to be tested within the temperature interval;

[0032] The temperature interval corresponding to the temperature interval to be measured is determined according to the property change interval.

[0033] In addition, to achieve the above-mentioned purpose, the present invention further proposes an engine vibration suppression control strategy generation device, the engine vibration suppression control strategy generation device comprising:

[0034] A temperature acquisition module, used to acquire a temperature to be measured corresponding to a suspension to be measured in a vehicle to be measured;

[0035] A vibration collection module, used to adjust the temperature of the suspension to be tested according to the temperature to be tested, control the operation of the engine in the vehicle to be tested, and collect current vibration information of the vehicle to be tested during operation;

[0036] The strategy generation module is used to obtain the current speed of the engine when the current vibration information meets a preset condition, and generate a vibration suppression control strategy for the engine according to the current speed.

[0037] In addition, to achieve the above-mentioned purpose, the present invention also proposes an engine vibration suppression control strategy generation device, which includes: a memory, a processor, and an engine vibration suppression control strategy generation program stored in the memory and executable on the processor, and the engine vibration suppression control strategy generation program is configured to implement the steps of the engine vibration suppression control strategy generation method as described above.

[0038] In addition, to achieve the above-mentioned purpose, the present invention also proposes a storage medium, on which an engine vibration suppression control strategy generation program is stored. When the engine vibration suppression control strategy generation program is executed by a processor, the steps of the engine vibration suppression control strategy generation method as described above are implemented.

[0039] The present invention obtains the temperature to be tested corresponding to the mount to be tested in the vehicle to be tested; adjusts the temperature of the mount to be tested according to the temperature to be tested, controls the operation of the engine in the vehicle to be tested, and collects the current vibration information of the vehicle to be tested during the operation; when the current vibration information meets the preset conditions, obtains the current speed of the engine, and generates the vibration suppression control strategy of the engine according to the current speed. Since the present invention obtains the temperature to be tested corresponding to the mount to be tested, adjusts the temperature of the mount to be tested according to the temperature to be tested, so that the mount to be tested is at the temperature to be tested, thereby simulating the actual state of the mount to be tested in a low temperature environment, controls the operation of the engine in the vehicle to be tested, and collects the current vibration information of the vehicle to be tested during the operation, thereby simulating the vehicle vibration state caused by the operation of the engine in the low temperature environment under the mount to be tested, and when the current vibration information meets the preset conditions, obtains the current speed of the engine, and generates the vibration suppression control strategy of the engine according to the current speed, thereby realizing effective vibration suppression of the engine according to the vibration suppression control strategy in a low temperature environment, reducing the vibration of the vehicle, and improving the driving experience of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a structural schematic diagram of an engine vibration suppression control strategy generation device in a hardware operating environment involved in an embodiment of the present invention;

[0041] Figure 2 A schematic flow chart of a first embodiment of a method for generating an engine vibration suppression control strategy according to the present invention;

[0042] Figure 3 A schematic flow chart of a second embodiment of a method for generating an engine vibration suppression control strategy according to the present invention;

[0043] Figure 4 A schematic flow chart of a third embodiment of a method for generating an engine vibration suppression control strategy according to the present invention;

[0044] Figure 5 This is a structural block diagram of the first embodiment of the engine vibration suppression control strategy generation device of the present invention.

[0045] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0046] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0047] Reference Figure 1 , Figure 1 The present invention is a schematic diagram of an engine vibration suppression control strategy generating device structure for a hardware operating environment involved in an embodiment of the present invention.

[0048] like Figure 1 As shown, the engine vibration suppression control strategy generation device may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (Wireless-Fidelity, Wi-Fi) interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM), or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk storage. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0049] Those skilled in the art will understand that Figure 1 The structure shown in the figure does not constitute a limitation on the engine vibration suppression control strategy generating device, and may include more or less components than those shown in the figure, or combine certain components, or arrange the components differently.

[0050] like Figure 1 As shown, the memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and an engine vibration suppression control strategy generation program.

[0051] exist Figure 1 In the engine vibration suppression control strategy generation device shown, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the engine vibration suppression control strategy generation device of the present invention can be set in the engine vibration suppression control strategy generation device, and the engine vibration suppression control strategy generation device calls the engine vibration suppression control strategy generation program stored in the memory 1005 through the processor 1001, and executes the engine vibration suppression control strategy generation method provided by the embodiment of the present invention.

[0052] The embodiment of the present invention provides a method for generating an engine vibration suppression control strategy, referring to Figure 2 , Figure 2 The figure is a flow chart of a first embodiment of a method for generating an engine vibration suppression control strategy according to the present invention.

[0053] In this embodiment, the engine vibration suppression control strategy generation method includes the following steps:

[0054] Step S10: obtaining the temperature to be measured corresponding to the mount to be measured in the vehicle to be measured.

[0055] It should be noted that this embodiment is applied to a scenario where a vehicle is traveling in a low-temperature environment and the engine mount is affected by the low-temperature environment, resulting in a decrease in the efficiency of suppressing engine vibration. The test temperature corresponding to the test mount in the test vehicle is obtained; the temperature of the test mount is adjusted according to the test temperature to control the operation of the engine in the test vehicle, and the current vibration information of the test vehicle during operation is collected; when the current vibration information meets a preset condition, the current speed of the engine is obtained, and a vibration suppression control strategy for the engine is generated according to the current speed, thereby achieving effective vibration suppression of the engine according to the vibration suppression control strategy in a low-temperature environment, reducing the vibration of the vehicle and improving the driving experience of the vehicle.

[0056] It should be understood that the executor of the method of this embodiment can be an engine vibration suppression control strategy generation device with data processing, network communication and program running functions, such as a vehicle-mounted controller, etc., or other devices or equipment that can achieve the same or similar functions. The above-mentioned engine vibration suppression control strategy generation device (hereinafter referred to as the vibration suppression control device) is taken as an example for explanation here.

[0057] It should be noted that the vehicle to be tested may be a vehicle that needs to undergo vibration testing at low temperatures, for example, the vehicle to be tested may be a new energy vehicle or a hybrid vehicle. The above-mentioned suspension to be tested may be an engine suspension in the vehicle to be tested, and the vehicle to be tested may reduce the vibration generated by the engine operation through the suspension to be tested. The above-mentioned temperature to be tested may be a temperature that simulates a low-temperature environment. The vibration suppression control device may obtain the temperature to be tested corresponding to the suspension to be tested to simulate the actual vibration suppression state of the suspension to be tested in a low-temperature environment. The temperature to be tested may be one or more temperatures, for example, the temperature to be tested may be multiple temperatures such as -30°C, -28°C, -26°C and -24°C.

[0058] It should be understood that in order to accurately simulate the vibration suppression state of the suspension to be tested in an actual low-temperature environment, the vibration suppression control device of this embodiment obtains the test temperature corresponding to the suspension to be tested in the vehicle to be tested, and adjusts the temperature of the suspension to be tested based on the test temperature, thereby accurately simulating the actual vibration suppression state of the suspension to be tested in a low-temperature environment.

[0059] In a specific implementation, the vibration suppression control device can determine the temperature to be tested according to the ambient temperature of the driving area of ​​the vehicle to be tested to simulate the actual operating scenario of the vehicle to be tested. For example, if the driving area of ​​the vehicle to be tested is the Northeast region, the temperature to be tested is determined to be between -30℃ and 0℃.

[0060] Step S20: adjusting the temperature of the mount to be tested according to the temperature to be tested, controlling the operation of the engine in the vehicle to be tested, and collecting current vibration information of the vehicle to be tested during the operation.

[0061] It should be noted that the engine may be an engine corresponding to the suspension to be tested in the vehicle to be tested. The above current vibration information may be relevant information of the real-time vibration state of the vehicle to be tested during operation, for example, the current vibration information may include information such as the current vibration frequency of the vehicle to be tested.

[0062] It should be understood that in order to simulate the operation of the engine of the vehicle to be tested in an actual low-temperature environment and to collect vibration information of the vehicle to be tested, the vibration suppression control device of this embodiment adjusts the temperature of the suspension to be tested according to the temperature to be tested to ensure that the suspension to be tested is at the temperature to be tested, controls the operation of the engine in the vehicle to be tested, and collects the current vibration information of the vehicle to be tested during the operation.

[0063] In a specific implementation, the vibration suppression control device adjusts the temperature of the mount to be tested according to the temperature to be tested so that the current temperature of the mount to be tested reaches the above-mentioned temperature to be tested, and controls the engine operation in the vehicle to be tested according to a preset speed control strategy, wherein the preset speed control strategy may be a speed control strategy pre-set according to engine information, and the control strategy may include one or more engine speeds, and collects the current vibration information of the vehicle to be tested during operation.

[0064] For example, the temperature to be tested is -30°C, the vibration suppression control device adjusts the temperature of the mount to be tested according to the temperature to be tested so that the current temperature of the mount to be tested reaches -30°C, and determines the preset speed control strategy according to the engine speed information, including adjusting the engine speed to 1150RPM, controls the engine operation in the vehicle to be tested according to the preset speed control strategy, and collects the current vibration information of the vehicle to be tested during the operation to determine the current vibration information of the vehicle to be tested when the temperature is -30°C and the engine speed is 1150RPM.

[0065] Step S30: When the current vibration information meets a preset condition, the current speed of the engine is acquired, and a vibration suppression control strategy of the engine is generated according to the current speed.

[0066] It should be noted that the preset condition may be a pre-set vibration qualified condition, and the vibration suppression control device determines that the current speed of the engine of the vehicle to be tested under the temperature environment to be tested meets the vibration qualified condition when the current vibration information meets the preset condition. The above current speed may be the current running speed of the engine when the current vibration information of the vehicle to be tested meets the preset condition. The above vibration suppression control strategy may be a strategy for suppressing the vibration of the vehicle to be tested caused by the engine.

[0067] It should be understood that in order to determine the current speed of the engine that meets the preset conditions under the temperature environment to be tested, the suppression control device of this embodiment obtains the current speed of the engine when the current vibration information meets the preset conditions, and determines that the current speed is the speed that has the least impact on the vibration of the vehicle to be tested, that is, the engine has the least impact on the vibration caused by the vehicle to be tested at the current speed; a vibration suppression control strategy for the engine is generated based on the current speed, so that when the vehicle to be tested is running in the temperature environment corresponding to the above-mentioned temperature to be tested, the engine speed is controlled to be adjusted to the above-mentioned current speed according to the vibration suppression control strategy to reduce the impact of engine vibration.

[0068] In a specific implementation, when the current vibration information meets the preset conditions, the suppression control device obtains the current speed of the engine, determines that the engine has the least vibration impact on the vehicle under test at the current speed, and generates a vibration suppression control strategy for the engine according to the current speed, so that the vehicle under test adjusts the engine speed according to the vibration suppression control strategy.

[0069] For example, when the test temperature of the vehicle to be tested is -25°C, when the current vibration information meets the preset conditions, the suppression control device obtains the current speed of the engine as 1500RPM, determines that the engine has the least vibration impact on the vehicle to be tested at the above current speed, and generates an engine vibration suppression control strategy according to the current speed of 1500RPM and the test temperature of -25°C, so that when the vehicle to be tested is running in an environment of -25°C, the engine speed is adjusted to 1500RPM according to the vibration suppression control strategy to reduce the vibration impact of the engine.

[0070] Furthermore, each vibration measuring point on the vehicle to be tested has a different degree of influence on the driver's driving. In order to accurately set the preset conditions corresponding to each vibration measuring point, the above step S30 may include:

[0071] Determine the distance information between each vibration measurement point and the driving position on the vehicle to be tested according to the structural information;

[0072] Determine the vibration weight corresponding to each vibration measurement point according to the distance information;

[0073] The preset conditions of each vibration measuring point are generated according to the vibration weight and the structural information.

[0074] It should be noted that the driving position may be the position where the driver of the vehicle to be tested drives, and the distance information may be the actual distance between each vibration measuring point and the driving position. The vibration weight may be the weight of the vibration influence of each vibration measuring point on the driver, wherein the closer the distance to the driving position is, the greater the vibration weight is; the farther the distance to the driving position is, the smaller the vibration weight is.

[0075] It should be understood that since the vibration at various positions on the vehicle to be tested has different degrees of influence on the driver, in order to give priority to reducing the position points with greater vibration influence, the vibration suppression control device of this embodiment determines the distance information between each vibration measuring point and the driving position on the vehicle to be tested according to the structural information, determines the degree of vibration influence of each vibration measuring point on the driver according to the distance information, determines the vibration weight corresponding to each vibration measuring point according to the vibration influence degree, and generates preset conditions for each vibration measuring point according to the vibration weight and the structural information.

[0076] For example, the vibration measurement points are the steering wheel, the seat rail, the door trim and the accelerator pedal. The distance information between the above vibration measurement points and the driving position is determined according to the structural information of the vehicle to be tested. According to the distance information, the above vibration measurement points are arranged in ascending order of distance as the door trim, the accelerator pedal, the steering wheel and the seat rail. According to the above distance ascending order, the above vibration measurement points are arranged in ascending order of vibration influence degree as the door trim, the accelerator pedal, the steering wheel and the seat rail. According to the above vibration influence degree ascending order, the vibration weights of the above vibration measurement points are determined as follows: 0.1 for the door trim, 0.2 for the accelerator pedal, 0.35 for the steering wheel and 0.35 for the seat rail. The preset conditions for each vibration measurement point are generated according to the vibration weight and the structural information.

[0077] This embodiment obtains the temperature to be tested corresponding to the mount to be tested in the vehicle to be tested; adjusts the temperature of the mount to be tested according to the temperature to be tested, controls the operation of the engine in the vehicle to be tested, and collects the current vibration information of the vehicle to be tested during the operation; when the current vibration information meets the preset conditions, obtains the current speed of the engine, and generates the vibration suppression control strategy of the engine according to the current speed. Since the present invention obtains the temperature to be tested corresponding to the mount to be tested, adjusts the temperature of the mount to be tested according to the temperature to be tested, so that the mount to be tested is at the temperature to be tested, thereby simulating the actual state of the mount to be tested in a low temperature environment, controls the operation of the engine in the vehicle to be tested, and collects the current vibration information of the vehicle to be tested during the operation, thereby simulating the vehicle vibration state caused by the operation of the engine in the low temperature environment under the mount to be tested, and when the current vibration information meets the preset conditions, obtains the current speed of the engine, and generates the vibration suppression control strategy of the engine according to the current speed, thereby realizing effective vibration suppression of the engine according to the vibration suppression control strategy in a low temperature environment, reducing the vibration of the vehicle, and improving the driving experience of the vehicle.

[0078] refer to Figure 3 , Figure 3 This is a flow chart of a second embodiment of a method for generating an engine vibration suppression control strategy according to the present invention.

[0079] Based on the above first embodiment, in this embodiment, step S20 includes:

[0080] Step S201: adjusting the temperature of the suspension to be tested according to the temperature to be tested.

[0081] It should be noted that the above-mentioned measured temperature can be a temperature that simulates a low-temperature environment. The vibration suppression control device can obtain the measured temperature corresponding to the measured suspension to achieve the simulation of the actual vibration suppression state of the measured suspension in the low-temperature environment. The measured temperature can be one or more temperatures. For example, the measured temperature can be multiple temperatures such as -30°C, -28°C, -26°C and -24°C.

[0082] Step S202: Obtaining the speed information of the engine in the vehicle to be tested.

[0083] It should be noted that the speed information may be the speed range of the engine under different operating conditions, for example, the idle speed range of the engine may be 600RPM-900RPM, and the overload speed range of the engine may be 3000RPM-4000RPM.

[0084] It should be understood that different vehicles correspond to different engines, and the speed information corresponding to their engines is also different. In order to improve the efficiency of engine testing, the vibration suppression control device of this embodiment obtains the engine information of the vehicle to be tested, and thus determines the engine speed information based on the engine information.

[0085] Step S203: determining a speed regulation strategy of the engine according to the speed information and the temperature to be measured.

[0086] It should be noted that the speed regulation strategy may be a strategy for regulating the engine speed. For example, if the engine speed range to be measured is 1150RPM-3000RPM, the speed regulation strategy is to regulate the engine speed to 1150RPM-3000RPM.

[0087] It should be understood that in order to accurately test the engine speed that is most suitable for the temperature to be tested, the vibration suppression control device of this embodiment determines the speed regulation strategy of the engine based on the speed information and the temperature to be tested, so as to adjust the engine speed according to the speed regulation strategy for testing.

[0088] For example, the vibration suppression control device determines that the engine speed range is 2800RPM-3000RPM according to the speed information, and sets the speed range to 50RPM according to the temperature to be measured, so the speeds to be measured are determined to be 2800RPM, 2850RPM, 2900RPM, 2950RPM and 3000RPM. The speed regulation strategy of the engine is determined according to the above-mentioned speeds to be measured to control the engine to adjust the speed to the above-mentioned speeds to be measured, and then the current vibration information of the vehicle to be measured at each speed to be measured is collected respectively, so as to determine the engine speed with the least vibration impact.

[0089] Furthermore, in order to generate a suitable speed regulation strategy to ensure the regulation efficiency of the engine, the above step S203 may include:

[0090] Step S2031: determining a speed adjustment interval of the engine and a speed adjustment interval corresponding to the speed adjustment interval according to the speed information;

[0091] Step S2032: determining the speed regulation strategy of the engine according to the speed regulation range, the speed regulation interval and the temperature to be measured.

[0092] It should be noted that the speed adjustment interval can be the speed adjustment interval range for the engine vibration suppression test, and the above-mentioned speed adjustment interval can be a gradient interval within the speed adjustment interval. For example, the speed adjustment interval is 2900RPM-3000RPM, and the speed adjustment interval is 20RPM. The speeds to be adjusted are 2900RPM, 2920RPM, 2940RPM, 2960RPM, 2980RPM and 3000RPM, and the speed adjustment strategy of the engine is determined based on the above-mentioned speeds to be adjusted.

[0093] Step S204: controlling the engine to run according to the speed regulation strategy, and collecting current vibration information of the vehicle to be tested during the running process.

[0094] It should be understood that in order to simulate the operation of the engine of the vehicle to be tested in an actual low-temperature environment and to collect vibration information of the vehicle to be tested, the vibration suppression control device of this embodiment adjusts the temperature of the suspension to be tested according to the temperature to be tested to ensure that the suspension to be tested is at the temperature to be tested, controls the operation of the engine in the vehicle to be tested, and collects the current vibration information of the vehicle to be tested during the operation.

[0095] In a specific implementation, the vibration suppression control device adjusts the temperature of the mount to be tested according to the temperature to be tested so that the current temperature of the mount to be tested reaches the above-mentioned temperature to be tested, and controls the engine operation in the vehicle to be tested according to a preset speed control strategy, wherein the preset speed control strategy may be a speed control strategy pre-set according to engine information, and the control strategy may include one or more engine speeds, and collects the current vibration information of the vehicle to be tested during operation.

[0096] For example, when the temperature to be tested is -20°C, the vibration suppression control device adjusts the temperature of the mount to be tested according to the temperature to be tested so that the current temperature of the mount to be tested reaches -20°C, and determines the preset speed control strategy according to the engine speed information, including adjusting the engine speed to 1800RPM, controls the engine operation in the vehicle to be tested according to the preset speed control strategy, and collects the current vibration information of the vehicle to be tested during the operation to determine the current vibration information of the vehicle to be tested when the temperature is -20°C and the engine speed is 1800RPM.

[0097] Furthermore, in order to accurately collect vibration information during the operation of the vehicle to be tested, the above step S204 may include:

[0098] Step S2041: Acquire the structural information of the vehicle to be tested;

[0099] Step S2042: determining each vibration measurement point on the vehicle to be tested according to the structural information;

[0100] Step S2043: controlling the operation of the engine according to the speed regulation strategy, and collecting current vibration information of each vibration measuring point during the operation.

[0101] It should be noted that the structural information may be geometric structural information of the vehicle to be tested. The vibration suppression control device may determine the structural position information of each component of the vehicle to be tested based on the structural information, and determine the position points on the vehicle to be tested where vibration collection is required based on the above structural position information.

[0102] The above-mentioned vibration measurement points may be position points on the vehicle to be tested where vibration information needs to be collected. The vibration measurement points may be one or more than one. For example, the vibration measurement points may be steering wheels, seat rails, door trim panels or accelerator pedal mounting points.

[0103] This embodiment adjusts the temperature of the mount to be tested according to the temperature to be tested, obtains the speed information of the engine in the vehicle to be tested, determines the speed adjustment strategy of the engine according to the speed information and the temperature to be tested, controls the operation of the engine according to the speed adjustment strategy, and collects the current vibration information of the vehicle to be tested during the operation. Since the present invention determines the speed adjustment strategy of the engine according to the speed information of the engine and the temperature to be tested, it can accurately simulate the actual operating conditions of the engine, control the operation of the engine according to the speed adjustment strategy, and collect the current vibration information of the vehicle to be tested during the operation, thereby ensuring the accuracy of the current vibration information of the vehicle to be tested collected during the operation.

[0104] refer to Figure 4 , Figure 4 It is a flow chart of a third embodiment of a method for generating an engine vibration suppression control strategy according to the present invention.

[0105] Based on the above first embodiment, in this embodiment, step S10 includes:

[0106] Step S101: obtaining material information corresponding to the suspension to be tested in the vehicle to be tested.

[0107] It should be noted that the material information may be information related to the material of the suspension to be tested. For example, the material information may include information such as the material of the suspension to be tested, the stiffness of the suspension to be tested, and the hardness of the suspension to be tested.

[0108] It should be understood that the stiffness and hardness properties of the suspension to be tested vary depending on the material of the suspension to be tested. For example, the hardness of the suspension to be tested made of rubber material at 20°C is 48 Shore A hardness and the Z-axis stiffness is 170 N / mm; the hardness of the suspension to be tested at -20°C is 60 Shore A hardness and the Z-axis stiffness is 300 N / mm.

[0109] Step S102: determining a temperature range to be measured of the suspension to be measured and a temperature interval corresponding to the temperature range to be measured according to the material information.

[0110] It should be noted that the temperature interval to be measured may be the range of the ambient temperature to be measured, for example, the temperature interval to be measured may be -30°C-0°C. The above temperature interval may be the temperature interval between the temperatures to be measured selected within the temperature interval to be measured, for example, the temperature interval may be 2°C. The vibration suppression control device may determine the temperature interval to be measured and the temperature interval corresponding to the temperature interval to be measured according to the material information of the suspension to be measured and the local temperature interval.

[0111] Furthermore, in order to accurately determine the temperature interval according to the property change of the suspension to be tested, the above step S102 may include:

[0112] Step 1021: determining a property mapping table corresponding to the suspension to be tested according to the material information;

[0113] Step 1022: determining the property change interval corresponding to the mount to be tested within the temperature interval according to the property mapping table;

[0114] Step 1023: Determine the temperature interval corresponding to the temperature interval to be measured according to the property change interval.

[0115] It should be noted that the property mapping table can be a mapping table corresponding to the material property changes of the suspension to be tested and the temperature changes. The above-mentioned property change interval can be the interval range in which the material of the suspension to be tested changes due to temperature changes. For example, the temperature range affected by material A is -35℃-0℃, and its property change interval is -35℃-0℃.

[0116] Step S103: determining the temperature to be measured corresponding to the suspension to be measured according to the temperature range to be measured and the temperature interval.

[0117] It should be noted that the temperature to be measured may be a temperature simulating a low-temperature environment. The vibration suppression control device may obtain the temperature to be measured corresponding to the suspension to be measured to simulate the actual vibration suppression state of the suspension to be measured in the low-temperature environment. The temperature to be measured may be one or more temperatures. For example, the temperature to be measured may be multiple temperatures such as -30°C, -28°C, -26°C and -24°C.

[0118] In a specific implementation, the vibration suppression control device selects one or more temperatures in the temperature interval to be measured as the measured temperature corresponding to the suspension to be measured according to the temperature interval corresponding to the temperature interval to be measured.

[0119] For example, the vibration suppression control device determines that the temperature range to be measured is -20°C-0°C, and the temperature interval corresponding to the temperature range to be measured is 5°C. According to the temperature interval, the temperatures to be measured in the temperature range to be measured are -20°C, -15°C, -10°C, -5°C and 0°C.

[0120] This embodiment obtains material information corresponding to the mount to be tested in the vehicle to be tested, determines the temperature range to be tested of the mount to be tested and the temperature interval corresponding to the temperature range to be tested according to the material information, and determines the temperature to be tested corresponding to the mount to be tested according to the temperature range to be tested and the temperature interval. Since the present invention determines the temperature range to be tested of the mount to be tested and the temperature interval corresponding to the temperature range to be tested according to the material information corresponding to the mount to be tested, and then determines the temperature to be tested corresponding to the mount to be tested according to the temperature range to be tested and the temperature interval, the temperature to be tested corresponding to the mount to be tested is accurately set, thereby improving the efficiency of vibration suppression control of the vehicle to be tested.

[0121] In addition, an embodiment of the present invention further proposes a storage medium, on which is stored an engine vibration suppression control strategy generation program, which, when executed by a processor, implements the steps of the engine vibration suppression control strategy generation method as described above.

[0122] Since the storage medium adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0123] Reference Figure 5 , Figure 5 This is a structural block diagram of the first embodiment of the engine vibration suppression control strategy generation device of the present invention.

[0124] like Figure 5 As shown, the engine vibration suppression control strategy generation device proposed in the embodiment of the present invention includes:

[0125] The temperature acquisition module 10 is used to acquire the temperature to be measured corresponding to the suspension to be measured in the vehicle to be measured;

[0126] A vibration collection module 20, used to adjust the temperature of the mount to be tested according to the temperature to be tested, control the operation of the engine in the vehicle to be tested, and collect current vibration information of the vehicle to be tested during operation;

[0127] The strategy generation module 30 is used to obtain the current speed of the engine when the current vibration information meets a preset condition, and generate a vibration suppression control strategy for the engine according to the current speed.

[0128] Furthermore, the vibration acquisition module 20 is also used to adjust the temperature of the suspension to be tested according to the temperature to be tested; obtain the speed information of the engine in the vehicle to be tested; determine the speed adjustment strategy of the engine according to the speed information and the temperature to be tested; control the operation of the engine according to the speed adjustment strategy, and collect the current vibration information of the vehicle to be tested during the operation.

[0129] Furthermore, the vibration acquisition module 20 is also used to determine the speed adjustment range of the engine and the speed adjustment interval corresponding to the speed adjustment range according to the speed information; and determine the speed adjustment strategy of the engine according to the speed adjustment range, the speed adjustment interval and the measured temperature.

[0130] Furthermore, the vibration collection module 20 is also used to obtain structural information of the vehicle to be tested; determine each vibration measurement point on the vehicle to be tested according to the structural information; control the operation of the engine according to the speed regulation strategy, and collect current vibration information of each vibration measurement point during the operation.

[0131] Furthermore, the strategy generation module 30 is also used to determine the distance information between each vibration measurement point and the driving position on the vehicle to be tested according to the structural information; determine the vibration weight corresponding to each vibration measurement point according to the distance information; and generate preset conditions for each vibration measurement point according to the vibration weight and the structural information.

[0132] Furthermore, the temperature acquisition module 10 is also used to obtain material information corresponding to the suspension to be tested in the vehicle to be tested; determine the temperature range to be tested of the suspension to be tested and the temperature interval corresponding to the temperature range to be tested according to the material information; and determine the temperature to be tested corresponding to the suspension to be tested according to the temperature range to be tested and the temperature interval.

[0133] Furthermore, the temperature acquisition module 10 is also used to determine a property mapping table corresponding to the suspension to be tested according to the material information; determine a property change interval corresponding to the suspension to be tested within the temperature interval according to the property mapping table; and determine a temperature interval corresponding to the temperature interval to be tested according to the property change interval.

[0134] This embodiment obtains the temperature to be tested corresponding to the mount to be tested in the vehicle to be tested; adjusts the temperature of the mount to be tested according to the temperature to be tested, controls the operation of the engine in the vehicle to be tested, and collects the current vibration information of the vehicle to be tested during the operation; when the current vibration information meets the preset conditions, obtains the current speed of the engine, and generates the vibration suppression control strategy of the engine according to the current speed. Since the present invention obtains the temperature to be tested corresponding to the mount to be tested, adjusts the temperature of the mount to be tested according to the temperature to be tested, so that the mount to be tested is at the temperature to be tested, thereby simulating the actual state of the mount to be tested in a low temperature environment, controls the operation of the engine in the vehicle to be tested, and collects the current vibration information of the vehicle to be tested during the operation, thereby simulating the vehicle vibration state caused by the operation of the engine in the low temperature environment under the mount to be tested, and when the current vibration information meets the preset conditions, obtains the current speed of the engine, and generates the vibration suppression control strategy of the engine according to the current speed, thereby realizing effective vibration suppression of the engine according to the vibration suppression control strategy in a low temperature environment, reducing the vibration of the vehicle, and improving the driving experience of the vehicle.

[0135] It should be understood that the above is only an example and does not constitute any limitation on the technical solution of the present invention. In specific applications, technicians in this field can make settings as needed, and the present invention does not limit this.

[0136] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of the present invention. In practical applications, technicians in this field can select part or all of them according to actual needs to achieve the purpose of the present embodiment, and no limitation is made here.

[0137] In addition, for technical details not fully described in this embodiment, reference may be made to the engine vibration suppression control strategy generation method provided in any embodiment of the present invention, and will not be repeated here.

[0138] In addition, it should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0139] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0140] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as a read-only memory (ROM) / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0141] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for generating an engine vibration suppression control strategy, characterized in that: The engine vibration suppression control strategy generation method comprises: Obtaining a temperature to be measured corresponding to a suspension to be measured in the vehicle to be measured; Adjusting the temperature of the suspension to be tested according to the temperature to be tested; Acquiring speed information of the engine in the vehicle to be tested; Determining a speed regulation strategy of the engine according to the speed information and the temperature to be measured; Acquiring structural information of the vehicle to be tested; Determine each vibration measurement point on the vehicle to be tested according to the structural information; Controlling the operation of the engine according to the speed regulation strategy, and collecting current vibration information of each vibration measuring point during the operation; Determine distance information between each vibration measurement point and a driving position on the vehicle to be tested according to the structural information; Determine the vibration weight corresponding to each vibration measurement point according to the distance information; generating preset conditions for each vibration measuring point according to the vibration weight and the structural information; When the current vibration information meets a preset condition, the current rotation speed of the engine is acquired, and a vibration suppression control strategy of the engine is generated according to the current rotation speed.

2. The engine vibration suppression control strategy generation method according to claim 1, characterized in that: The determining of the engine speed regulation strategy according to the speed information and the temperature to be measured includes: Determine a speed adjustment interval of the engine and a speed adjustment interval corresponding to the speed adjustment interval according to the speed information; The speed regulation strategy of the engine is determined according to the speed regulation range, the speed regulation interval and the temperature to be measured.

3. The engine vibration suppression control strategy generation method according to any one of claims 1 to 2, characterized in that: The step of obtaining the temperature to be measured corresponding to the mount to be measured in the vehicle to be measured comprises: Obtaining material information corresponding to the suspension to be tested in the vehicle to be tested; Determine, according to the material information, a temperature interval to be measured of the suspension to be measured and a temperature interval corresponding to the temperature interval to be measured; The measured temperature corresponding to the measured suspension is determined according to the measured temperature range and the temperature interval.

4. The engine vibration suppression control strategy generation method according to claim 3, characterized in that: The step of determining the temperature interval to be measured of the suspension to be measured and the temperature interval corresponding to the temperature interval to be measured according to the material information includes: Determine a property mapping table corresponding to the suspension to be tested according to the material information; Determine, according to the property mapping table, a property change interval corresponding to the mount to be tested within the temperature interval; The temperature interval corresponding to the temperature interval to be measured is determined according to the property change interval.

5. An engine vibration suppression control strategy generation device, characterized in that: The engine vibration suppression control strategy generating device comprises: A temperature acquisition module, used to acquire a temperature to be measured corresponding to a suspension to be measured in a vehicle to be measured; A vibration collection module, used to adjust the temperature of the suspension to be tested according to the temperature to be tested; obtain the speed information of the engine in the vehicle to be tested; determine the speed adjustment strategy of the engine according to the speed information and the temperature to be tested; obtain the structural information of the vehicle to be tested; determine each vibration measurement point on the vehicle to be tested according to the structural information; control the operation of the engine according to the speed adjustment strategy, and collect current vibration information of each vibration measurement point during the operation; A strategy generation module is used to determine the distance information between each vibration measurement point and the driving position on the vehicle to be tested according to the structural information; determine the vibration weight corresponding to each vibration measurement point according to the distance information; generate a preset condition for each vibration measurement point according to the vibration weight and the structural information; when the current vibration information meets the preset condition, obtain the current speed of the engine, and generate the vibration suppression control strategy of the engine according to the current speed.

6. An engine vibration suppression control strategy generation device, characterized in that: The engine vibration suppression control strategy generation device includes: a memory, a processor, and an engine vibration suppression control strategy generation program stored in the memory and executable on the processor, wherein the engine vibration suppression control strategy generation program is configured to implement the engine vibration suppression control strategy generation method as described in any one of claims 1 to 4.

7. A storage medium, characterized in that: The storage medium stores an engine vibration suppression control strategy generation program, and when the engine vibration suppression control strategy generation program is executed by the processor, the engine vibration suppression control strategy generation method according to any one of claims 1 to 4 is implemented.

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