CN114459651A - Dynamometer control method and device, electronic equipment and storage medium - Google Patents

Dynamometer control method and device, electronic equipment and storage medium Download PDF

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Publication number
CN114459651A
CN114459651A CN202111609829.8A CN202111609829A CN114459651A CN 114459651 A CN114459651 A CN 114459651A CN 202111609829 A CN202111609829 A CN 202111609829A CN 114459651 A CN114459651 A CN 114459651A
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China
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inertia
torque
test object
dynamometer
output
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张俊杰
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Yinmengda Transmission Technology Shanghai Co ltd
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Siemens Ltd China
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/24—Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity
    • G01L3/242—Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity by measuring and simultaneously multiplying torque and velocity

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  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Engines (AREA)

Abstract

The invention provides a dynamometer control method, a dynamometer control device, electronic equipment and a storage medium, wherein the dynamometer control method is used for controlling a dynamometer in the process of testing a test object through the dynamometer, and the dynamometer control method comprises the following steps: acquiring a first torque output by the test object; acquiring a first inertia of the test object, wherein the first inertia is the inertia needing to be loaded on the test object; determining a second torque according to the first torque and the first inertia; and controlling the dynamometer to output the second torque to the test object so that inertia loaded on the test object is equal to the first inertia. This scheme can improve the efficiency of testing through the dynamometer to the test object.

Description

Dynamometer control method and device, electronic equipment and storage medium
Technical Field
The invention relates to the technical field of mechanical engineering, in particular to a dynamometer control method, a dynamometer control device, electronic equipment and a storage medium.
Background
A dynamometer (Machine Of Measuring Power) is an instrument for Measuring output torque and rotational speed Of a Power Machine (such as an internal combustion engine, an electric motor, a water turbine, etc.), and input torque and rotational speed Of a working Machine (such as an oil pump, an air compressor, etc.). When a test object is tested through the dynamometer, the inertia of the dynamometer needs to be determined according to the actual use working condition of the test object, so that the inertia of the dynamometer is matched with the load/driven inertia of the test object in the actual use process, and the accuracy of a test result is ensured.
At present, according to the load/driven inertia in the actual use process of a test object, an inertia flywheel disc mechanism is added in a dynamometer, so that the inertia of the dynamometer is the same as the load/driven inertia in the actual use process of the test object, and then the test object is tested through the dynamometer.
However, the load/drive inertia of different test objects in the actual use process is different, and the load/drive inertia of the same test object in different use scenes is also different, so that the inertia flywheel disk mechanism on the dynamometer needs to be frequently adjusted, and each adjustment of the inertia flywheel disk mechanism needs to take a long time, resulting in low test efficiency.
Disclosure of Invention
In view of this, the dynamometer control method, apparatus, electronic device and storage medium provided by the invention can improve the efficiency of testing the test object by the dynamometer.
In a first aspect, an embodiment of the present invention provides a dynamometer control method for controlling a dynamometer in a process of testing a test object by the dynamometer, the method including: acquiring a first torque output by the test object; acquiring a first inertia of the test object, wherein the first inertia is the inertia which needs to be loaded on the test object; determining a second torque according to the first torque and the first inertia; and controlling the dynamometer to output the second torque to the test object so that inertia loaded on the test object is equal to the first inertia.
In a first possible implementation manner, with reference to the first aspect, the acquiring a first torque output by the test object includes: and detecting the first torque output by the test object through a torque meter which connects the test object and the dynamometer.
In a second possible implementation manner, with reference to the first aspect or the first possible implementation manner of the first aspect, the determining a second torque according to the first torque and the first inertia includes: and determining the second torque according to the first torque, the first inertia and the second inertia of the dynamometer.
In a third possible implementation manner, with reference to the second possible implementation manner, the determining the second torque according to the first torque, the first inertia, and a second inertia of the dynamometer includes: according to the first torque, the first inertia and the second inertia, through a formula
Figure BDA0003435018020000021
Calculating the second torque; wherein M isaFor characterizing the second torque, M for characterizing the first torque, JrFor characterizing said first inertia, JmFor characterizing the second inertia.
In a second aspect, an embodiment of the present invention further provides a dynamometer control apparatus for controlling a dynamometer during a test of a test object by the dynamometer, including: the detection module is used for acquiring a first torque output by the test object; the device comprises a first acquisition module, a second acquisition module and a control module, wherein the first acquisition module is used for acquiring a first inertia of a test object, and the first inertia is the inertia which needs to be loaded on the test object; the operation module is used for determining a second torque according to the first torque acquired by the detection module and the first inertia acquired by the first acquisition module; and the control module is used for controlling the dynamometer to output the second torque determined by the operation module to the test object so as to enable the inertia loaded on the test object to be equal to the first inertia.
In a first possible implementation manner, with reference to the second aspect, the detecting module is configured to detect the first torque output by the test object through a torque meter connecting the test object and the dynamometer.
In a second possible implementation manner, with reference to the second aspect or the first possible implementation manner of the second aspect, the apparatus further includes a second obtaining module; the second acquisition module is used for acquiring a second inertia of the dynamometer; the operation module is configured to determine a second torque according to the first torque acquired by the detection module, the first inertia acquired by the first acquisition module, and the second inertia acquired by the second acquisition module.
In a third possible implementation manner, with reference to the second possible implementation manner, the operation module is configured to use a formula to obtain the first torque, the first inertia, and the second inertia
Figure BDA0003435018020000022
Calculating the second torque; wherein M isaFor characterizing the second torque, M for characterizing the first torque, JrFor characterizing said first inertia, JmFor characterizing the second inertia.
In a third aspect, an embodiment of the present invention further provides an electronic device, including: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus; the memory is configured to store at least one executable instruction, where the executable instruction causes the processor to perform an operation corresponding to the dynamometer control method provided by the above first aspect or any possible implementation manner of the first aspect.
In a fourth aspect, the present invention further provides a computer-readable storage medium, where computer instructions are stored, and when executed by a processor, cause the processor to execute the dynamometer control method provided in the first aspect or any possible implementation manner of the first aspect.
In a fifth aspect, an embodiment of the present invention further provides a computer program, which includes computer-executable instructions, and when executed, causes at least one processor to execute the dynamometer control method provided in the first aspect or any possible implementation manner of the first aspect.
In a sixth aspect, embodiments of the present invention further provide a computer program product, which is tangibly stored on a computer-readable medium and includes computer-executable instructions that, when executed, cause at least one processor to perform a method for dynamometer control as provided by the first aspect or any of the possible implementations of the first aspect.
According to the technical scheme, in the process of testing the test object through the dynamometer, the dynamometer is controlled to output the second torque to the test object according to the first torque output by the test object and the first inertia needing to be loaded on the test object, the inertia loaded on the test object is adjusted through the second torque output by the dynamometer, the inertia loaded on the test object is made to be equal to the first inertia, namely the inertia loaded on the test object is equal to the load or the driven inertia of the test object in an actual use scene, and the accuracy of the test result is guaranteed. Because the dynamometer has the function of torque output, the second torque is output through the dynamometer to simulate the load or the driven inertia in the actual use scene of the test object, the accuracy of the test result is ensured, and meanwhile, the dynamometer is only required to be controlled to output the second torque, so that the inertia required by the test object can be matched with the inertia of the dynamometer in a short time, and the efficiency of testing the test object through the dynamometer can be improved.
Drawings
FIG. 1 is a flow chart of a dynamometer control method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a velocity profile of a test object provided by an embodiment of the present invention;
FIG. 3 is a schematic diagram of another velocity profile of a test object provided by an embodiment of the present invention;
FIG. 4 is a schematic diagram of a dynamometer control apparatus according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of another dynamometer control apparatus provided by an embodiment of the present invention;
fig. 6 is a schematic diagram of an electronic device according to an embodiment of the present invention.
List of reference numerals:
100: dynamometer machine control method 400: dynamometer control device 600: electronic device
201: speed curve 202: speed curve 301: velocity profile
401: the detection module 402: the first obtaining module 403: operation module
404: the control module 405: the second obtaining module 602: processor with a memory having a plurality of memory cells
604: the communication interface 606: the memory 608: communication bus
610: procedure for measuring the movement of a moving object
101: acquiring a first torque output by a test object
102: obtaining a first inertia of a test object
103: determining a second torque based on the first torque and the first inertia
104: controlling the dynamometer to output a second torque to the test object so that the inertia loaded on the test object is equal to the first inertia
Detailed Description
As described above, when the dynamometer is used to test the output torque, the rotational speed, or the acceleration performance of the test object, in order to ensure the accuracy of the test result, the inertia of the dynamometer needs to be the same as the inertia of the load or the drive during the actual use of the test object. For example, when the dynamometer is used for testing the acceleration performance of an automobile engine, the engine is connected to the dynamometer, the dynamometer simulates the combination of a gearbox, a transmission shaft, a hub, an automobile body and the like behind the engine on the whole automobile, the inertia of the dynamometer needs to be the same as that of the whole automobile, and the acceleration performance tested by the dynamometer can truly reflect the acceleration performance of the engine after the engine is installed on the automobile. Because the dynamometer has fixed inertia, in order to make the inertia of the dynamometer the same as the load or driving inertia of a test object in the actual use process, the inertia of the dynamometer is adjusted by adding an inertia flywheel disk mechanism at present, however, the load or driving inertia of different test objects in the actual use process is different, and the load or driving inertia of the same test object is also different in different application scenes, so that the inertia flywheel mechanism needs to be frequently adjusted to generate different inertias when different or the same test object is tested, and long time is consumed for adjusting the inertia flywheel mechanism every time, thereby resulting in low efficiency of testing the test object by the dynamometer.
In the embodiment of the invention, when the test object is tested by the dynamometer, the dynamometer is controlled to output the second torque to the test object according to the first torque output by the test object and the first inertia of the load or the drive of the test object in the actual use process, so that the inertia loaded on the test object is equal to the first inertia, namely the inertia loaded on the test object by the dynamometer is equal to the inertia of the load or the drive of the test object in the actual use process, and the accuracy of the test result is ensured. The inertia of the load or the drive in the actual use process of the test object is simulated by the output torque of the dynamometer, so that the inertia loaded on the test object is equal to the inertia of the load or the drive in the actual use process of the test object, the accuracy of a test result is ensured, and the adjustment of the inertia can be realized in a short time as the output torque of the dynamometer is only required to be adjusted according to the inertia required by the test object, thereby improving the efficiency of testing the test object by the dynamometer.
The dynamometer control method, device and electronic equipment of the embodiment of the invention are described in detail below with reference to the accompanying drawings.
FIG. 1 is a flowchart of a dynamometer control method for controlling a dynamometer during a test of a test object by the dynamometer according to an embodiment of the present invention. As shown in FIG. 1, dynamometer control method 100 includes the steps of:
step 101, acquiring a first torque output by a test object.
In the process of testing a test object by a dynamometer, the test object is connected to the dynamometer to detect acceleration performance, output torque, rotation speed, and the like of the test object by the dynamometer. During the process of testing the test object through the dynamometer, a first torque output by the test object is acquired.
It should be understood that the output torque of the test object may be constant or may vary during the test of the test object. If the test object outputs a constant torque, the output torque of the test object may be acquired once as the first torque before the test is started. If the test object outputs variable torque, the torque output by the test object is periodically acquired as a first torque at a set sampling period.
And 102, acquiring a first inertia of the test object.
The first inertia is the inertia which needs to be loaded on the test object, and the first inertia is equal to the inertia of the load or the drive of the test object under the actual use scene. For example, when the acceleration performance of an automobile engine is tested, the automobile engine is used as a test object, and the first inertia of the automobile engine is the inertia of the whole automobile including the automobile engine, a gearbox, a transmission shaft, a hub, an automobile body and the like.
It should be understood that the first inertia of the test object may be a constant value or a variable value according to the difference of the test object and the application scenario of the test object. If the first inertia of the test object is a constant value, the first inertia of the test object only needs to be acquired once before the test starts. And if the first inertia of the test object is the change value, periodically acquiring the first inertia of the test object in the test process.
And 103, determining a second torque according to the first torque and the first inertia.
And controlling the dynamometer to output a second torque in order to simulate the load or driven inertia of the test object in the actual use scene. The second torque output by the dynamometer is loaded on the test object, so that the inertia loaded on the test object is equal to the load or the driven inertia of the test object in an actual scene, and the accuracy of a test result is ensured.
Since the first inertia is the inertia required to be loaded on the test object, and the first torque is the torque output by the test object, based on the relationship that the acceleration output by the test object is in direct proportion to the output torque and in inverse proportion to the inertia loaded on the test object, the second torque required to be output by the dynamometer can be determined according to the first torque and the first inertia, and the inertia loaded on the test object is equal to the inertia of the load or the drive of the test object in the actual use scene by applying the second torque on the test object.
And 104, controlling the dynamometer to output a second torque to the test object, so that the inertia loaded on the test object is equal to the first inertia.
After the second torque is determined according to the first torque and the first inertia, the dynamometer is controlled based on the determined second torque, and the dynamometer outputs the second torque to the test object, so that the inertia loaded on the test object is equal to the first inertia, namely the inertia loaded on the test object is equal to the inertia of the load or the drive of the test object in the actual use scene.
And controlling the dynamometer to output the second torque to the test object, and simultaneously acquiring information such as output torque, rotating speed or acceleration of the test object through the dynamometer according to a test item corresponding to the test object, so as to test the test object through the dynamometer.
In the embodiment of the invention, in the process of testing the test object by the dynamometer, the dynamometer is controlled to output the second torque to the test object according to the first torque output by the test object and the first inertia which needs to be loaded on the test object, the inertia loaded on the test object is adjusted by outputting the second torque by the dynamometer, so that the inertia loaded on the test object is equal to the first inertia, namely the inertia loaded on the test object is equal to the load or the driven inertia of the test object in an actual use scene, and the accuracy of the test result is ensured. Because the dynamometer has the function of torque output, the second torque is output through the dynamometer to simulate the load or the driven inertia in the actual use scene of the test object, the accuracy of the test result is ensured, and meanwhile, the dynamometer is only required to be controlled to output the second torque, so that the inertia required by the test object can be matched with the inertia of the dynamometer in a short time, and the efficiency of testing the test object through the dynamometer can be improved.
In a possible implementation manner, when the first torque output by the test object is acquired in step 101, the first torque output by the test object may be detected by a torque meter connecting the test object and the dynamometer.
The torque meter is used for sensing and detecting torsional moments on various rotating or non-rotating mechanical parts. One end of the torque meter is connected with a test object, the other end of the torque meter is connected with the dynamometer, and the test object transmits power to the dynamometer through the torque meter.
In the embodiment of the invention, as the first torque output by the test object may change in the test process, the first torque output by the test object is detected by the torque meter, the first torque output by the test object can be dynamically acquired, the accuracy of the acquired first torque is ensured, and when the dynamometer outputs the second torque according to the first torque and the first inertia, the second torque output by the dynamometer is ensured to enable the inertia loaded on the test object to be equal to the load or the driven inertia of the test object in an actual use scene, so that the accuracy of testing the test object is ensured.
In one possible implementation, when determining the second torque according to the first torque and the first inertia in step 103, the second torque may be determined according to the first torque, the first inertia, and the second inertia of the dynamometer.
In the embodiment of the invention, the dynamometer has certain inertia, the dynamometer is connected with the test object, the inertia of the dynamometer is loaded on the test object, and the second torque required to be output to the test object by the dynamometer is determined according to the first torque, the first inertia and the second inertia of the dynamometer, so that the sum of the second inertia of the dynamometer and the torque simulated by the second torque is equal to the load or driven inertia of the test object in an actual application scene, and the accuracy of a test result is ensured.
It should be understood that the dynamometer itself has a second inertia and the sum of the torques simulated by the second torques is equal to the inertia of the load or the drive of the test object in the actual application scenario. When the second inertia of the dynamometer is smaller than the load or the driven inertia of the test object in the actual application scene, the second torque output by the dynamometer to the test object is opposite to the first torque, and when the second inertia and the torque simulated by the second torque are positive values, the sum of the second inertia and the torque simulated by the second torque is equal to the load or the driven inertia of the test object in the actual application scene. When the dynamometer has a second inertia equal to the inertia of the load or the drive of the test object in the actual application scene, the dynamometer does not need to output torque to the test object, that is, the second torque is equal to zero. When the second inertia of the dynamometer is larger than the load or the driven inertia of the test object in the actual application scene, the second torque output by the dynamometer to the test object is in the same direction as the first torque, and when the second inertia and the torque simulated by the second torque are positive values, the difference between the second inertia and the torque simulated by the second torque is equal to the load or the driven inertia of the test object in the actual application scene.
In one possible implementation, when determining the second torque according to the first torque, the first inertia, and the second inertia, the second torque may be calculated by the following equation:
Figure BDA0003435018020000071
wherein, MaFor characterizing the second torque, M for characterizing the first torque, JrFor characterizing a first inertia, JmFor characterizing the second inertia.
A first torque M output according to a test object and a first inertia J required to be loaded on the test objectrAcceleration of the desired test object output may be determined
Figure BDA0003435018020000072
If the dynamometer does not output the second torque, only the second inertia J of the dynamometermLoaded on the test object, at which time the test object actually outputs an acceleration
Figure BDA0003435018020000073
In order to make the acceleration output by the test object equal to the acceleration betarThe dynamometer outputs a second torque M to the test objectaAcceleration actually output by the test object
Figure BDA0003435018020000074
Whereby the second torque can be determined
Figure BDA0003435018020000075
In the embodiment of the invention, after the first torque, the first inertia and the second inertia are obtained, the formula is used
Figure BDA0003435018020000076
Figure BDA0003435018020000077
The computer dynamometer requires a second torque M output to the test objectaEnsuring the dynamometer to output the second torque MaAfter the test object is reached, the inertia loaded on the test object is equal to the load or the driven inertia of the test object in the actual application scene, so that the accuracy of the test result is ensured.
Fig. 2 is a schematic diagram of a speed curve of a test object according to an embodiment of the present invention, and fig. 3 is a schematic diagram of a speed curve of another test object according to an embodiment of the present invention. In fig. 2 and 3, the abscissa t represents time and the ordinate v represents the output speed of the test object. As shown in fig. 2, the speed curve 201 is a desired speed curve of the test object, and the speed curve 202 is an actual speed curve of the test object when the dynamometer does not output the second torque to the test object, and it can be seen that the speed curve 201 and the speed curve 202 have a large difference, and at this time, a large deviation exists in the test result. As shown in fig. 3, the speed curve 201 is an expected speed curve of the test object, the speed curve 301 is an actual speed curve of the test object when the dynamometer outputs the second torque to the test object, and it can be seen that the difference between the speed curve 201 and the speed curve 301 is small, and at this time, the deviation of the test result is small, so that a more accurate test result can be obtained. As can be known from fig. 2 and 3, the accuracy of testing the test object by the dynamometer can be ensured by simulating the inertia through the output torque of the dynamometer.
It is to be noted that the formula
Figure BDA0003435018020000081
Middle second torque MaIs signed and defines a first torque M, a first inertia JrAnd a second inertia JmAre all positive numbers. When the second torque MaSecond inertia J of dynamometer itself when positivemGreater than the first inertia J required by the test objectrAt this time, the second torque M output by the dynamometeraThe first torque M output by the test object is in the same direction. When the second torque MaWhen plural, the second inertia J of dynamometer itselfmLess than the first inertia J required by the test objectrAt this time, the second torque M output by the dynamometeraOpposite to the first torque M output by the test object.
Based on the above description, the formula
Figure BDA0003435018020000082
Determining a second torque M required to be output to the test object by the dynamometeraThe dynamometer outputs torque to simulate the load or the driven inertia of a test object, so that the test object with the required inertia larger than the inertia of the dynamometer can be tested, the test object with the required inertia smaller than the inertia of the dynamometer can be tested, various types of test objects can be tested through the dynamometer, and the test applicability of the test object through the dynamometer is improved.
FIG. 4 is a schematic diagram of a dynamometer control apparatus for controlling a dynamometer during a test of a test object by the dynamometer, according to an embodiment of the present invention. As shown in fig. 4, the dynamometer control apparatus 400 includes:
the detection module 401 is used for acquiring a first torque output by a test object;
a first obtaining module 402, configured to obtain a first inertia of a test object, where the first inertia is an inertia that needs to be loaded on the test object;
an operation module 403, configured to determine a second torque according to the first torque obtained by the detection module 401 and the first inertia obtained by the first obtaining module 402;
and a control module 404, configured to control the dynamometer to output the second torque determined by the operation module 403 to the test object, so that the inertia loaded on the test object is equal to the first inertia.
In an embodiment of the present invention, the detecting module 401 may be configured to execute step 101 in the above-described method embodiment, the first obtaining module 402 may be configured to execute step 102 in the above-described method embodiment, the calculating module 403 may be configured to execute step 103 in the above-described method embodiment, and the controlling module 404 may be configured to execute step 104 in the above-described method embodiment.
In one possible implementation, the detecting module 401 is configured to detect a first torque output by a test object by connecting the test object and a torque meter of a dynamometer.
In one possible implementation, based on the dynamometer control apparatus 400 shown in fig. 4, as described in fig. 5, the dynamometer control apparatus 400 further includes a second obtaining module 405. The second obtaining module 405 is configured to obtain a second inertia of the dynamometer, and the operation module 403 is configured to determine the second torque according to the first torque obtained by the detecting module 401, the first inertia obtained by the first obtaining module 402, and the second inertia obtained by the second obtaining module 405.
In a possible implementation manner, the operation module 403 is configured to calculate the second torque according to the first torque, the first inertia and the second inertia by the following formula;
Figure BDA0003435018020000091
wherein, MaFor characterizing the second torque, M for characterizing the first torque, JrFor characterizing a first inertia, JmFor characterizing the second inertia.
It should be noted that the dynamometer control apparatus provided in the above embodiments and the dynamometer control method provided in the above embodiments are based on the same inventive concept, and the interaction between the modules in the dynamometer control apparatus can be referred to the description in the foregoing dynamometer control method embodiment, and is not described herein again.
Fig. 6 is a schematic diagram of an electronic device according to an embodiment of the present invention, and the specific embodiment of the present invention does not limit the specific implementation of the electronic device. Referring to fig. 6, an electronic device 600 provided in an embodiment of the present invention includes: a processor (processor)602, a communication Interface 604, a memory 606, and a communication bus 608. Wherein:
processor 602, communication interface 604, and memory 606 communicate with one another via a communication bus 608.
A communication interface 604 for communicating with other electronic devices or servers.
The processor 602 is configured to execute the program 610, and may specifically execute the relevant steps in the dynamometer control method embodiment described above.
In particular, program 610 may include program code comprising computer operating instructions.
The processor 602 may be a central processing unit CPU or an application Specific Integrated circuit asic or one or more Integrated circuits configured to implement embodiments of the present invention. The intelligent device comprises one or more processors which can be the same type of processor, such as one or more CPUs; or may be different types of processors such as one or more CPUs and one or more ASICs.
A memory 606 for storing a program 610. Memory 606 may comprise high-speed RAM memory, and may also include non-volatile memory (non-volatile memory), such as at least one disk memory.
Program 610 may be specifically configured to cause processor 602 to perform a dynamometer control method of any of the embodiments previously described.
For specific implementation of each step in the program 610, reference may be made to corresponding steps and corresponding descriptions in units in the above embodiments of the dynamometer control method, which are not described herein again. It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described devices and modules may refer to the corresponding process descriptions in the foregoing method embodiments, and are not described herein again.
According to the electronic device of the embodiment, in the process of testing the test object through the dynamometer, the dynamometer is controlled to output the second torque to the test object according to the first torque output by the test object and the first inertia which needs to be loaded on the test object, the inertia loaded on the test object is adjusted through the second torque output by the dynamometer, so that the inertia loaded on the test object is equal to the first inertia, namely the inertia loaded on the test object is equal to the load or the driven inertia of the test object in an actual use scene, and the accuracy of a test result is ensured. Because the dynamometer has the function of torque output, the second torque is output through the dynamometer to simulate the load or the driven inertia in the actual use scene of the test object, the accuracy of the test result is ensured, and meanwhile, the dynamometer is only required to be controlled to output the second torque, so that the inertia required by the test object can be matched with the inertia of the dynamometer in a short time, and the efficiency of testing the test object through the dynamometer can be improved.
The present invention also provides a computer readable storage medium storing instructions for causing a machine to perform a method of dynamometer control as described herein. Specifically, a system or an apparatus equipped with a storage medium on which software program codes that realize the functions of any of the above-described embodiments are stored may be provided, and a computer (or a CPU or MPU) of the system or the apparatus is caused to read out and execute the program codes stored in the storage medium.
In this case, the program code itself read from the storage medium can realize the functions of any of the above-described embodiments, and thus the program code and the storage medium storing the program code constitute a part of the present invention.
Examples of the storage medium for supplying the program code include a floppy disk, a hard disk, a magneto-optical disk, an optical disk (e.g., CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD + RW), a magnetic tape, a nonvolatile memory card, and a ROM. Alternatively, the program code may be downloaded from a server computer by a communications network.
Further, it should be clear that the functions of any one of the above-described embodiments may be implemented not only by executing the program code read out by the computer, but also by causing an operating system or the like operating on the computer to perform a part or all of the actual operations based on instructions of the program code.
Further, it is to be understood that the program code read out from the storage medium is written to a memory provided in an expansion board inserted into the computer or to a memory provided in an expansion module connected to the computer, and then causes a CPU or the like mounted on the expansion board or the expansion module to perform part or all of the actual operations based on instructions of the program code, thereby realizing the functions of any of the above-described embodiments.
Embodiments of the present invention further provide a computer program, which includes computer-executable instructions, and when executed, cause at least one processor to execute the dynamometer control method provided in each of the above embodiments.
Embodiments of the present invention also provide a computer program product that is tangibly stored on a computer-readable medium and includes computer-executable instructions that, when executed, cause at least one processor to perform the method for dynamometer control provided by the above-described embodiments. It should be understood that each scheme in this embodiment has the corresponding technical effect in the above method embodiments, and is not described herein again.
It should be noted that not all steps and modules in the above flows and system structure diagrams are necessary, and some steps or modules may be omitted according to actual needs. The execution order of the steps is not fixed and can be adjusted as required. The system structure described in the above embodiments may be a physical structure or a logical structure, that is, some modules may be implemented by the same physical entity, or some modules may be implemented by a plurality of physical entities, or some components in a plurality of independent devices may be implemented together.
In the above embodiments, the hardware module may be implemented mechanically or electrically. For example, a hardware module may comprise permanently dedicated circuitry or logic (such as a dedicated processor, FPGA or ASIC) to perform the corresponding operations. A hardware module may also include programmable logic or circuitry (e.g., a general-purpose processor or other programmable processor) that may be temporarily configured by software to perform the corresponding operations. The specific implementation (mechanical, or dedicated permanent, or temporarily set) may be determined based on cost and time considerations.
While the invention has been shown and described in detail in the drawings and in the preferred embodiments, it is not intended to limit the invention to the embodiments disclosed, and it will be apparent to those skilled in the art that various combinations of the code auditing means in the various embodiments described above may be used to obtain further embodiments of the invention, which are also within the scope of the invention.

Claims (12)

1. A dynamometer control method (100) for controlling a dynamometer during a test of a test subject by the dynamometer, comprising:
acquiring a first torque (101) output by the test object;
acquiring a first inertia of the test object, wherein the first inertia is an inertia (102) required to be loaded on the test object;
determining a second torque (103) from the first torque and the first inertia;
controlling the dynamometer to output the second torque to the test object so that inertia loaded on the test object is equal to the first inertia (104).
2. The method of claim 1, wherein said obtaining a first torque output by said test subject comprises:
and detecting the first torque output by the test object through a torque meter which connects the test object and the dynamometer.
3. The method of claim 1 or 2, wherein determining a second torque based on the first torque and the first inertia comprises:
and determining the second torque according to the first torque, the first inertia and the second inertia of the dynamometer.
4. The method of claim 3, wherein determining the second torque as a function of the first torque, the first inertia, and a second inertia of the dynamometer comprises:
calculating the second torque according to the first torque, the first inertia and the second inertia by the following formula;
Figure FDA0003435018010000011
wherein M isaFor characterizing the second torque, M for characterizing the first torque, JrFor characterizing said first inertia, JmFor characterizing the second inertia.
5. A dynamometer control apparatus (400) for controlling a dynamometer during a test of a test object by the dynamometer, comprising:
the detection module (401) is used for acquiring a first torque output by the test object;
a first obtaining module (402) for obtaining a first inertia of a test object, wherein the first inertia is an inertia required to be loaded on the test object;
an operation module (403) configured to determine a second torque according to the first torque acquired by the detection module (401) and the first inertia acquired by the first acquisition module (402);
a control module (404) for controlling the dynamometer to output the second torque determined by the operation module (403) to the test object so that the inertia loaded on the test object is equal to the first inertia.
6. The apparatus of claim 5, wherein the detection module (401) is configured to detect the first torque output by the test object by a torque meter connecting the test object and the dynamometer.
7. The apparatus of claim 5 or 6, further comprising: a second acquisition module (405);
the second acquisition module (405) is used for acquiring a second inertia of the dynamometer;
the operation module (403) is configured to determine a second torque according to the first torque acquired by the detection module (401), the first inertia acquired by the first acquisition module (402), and the second inertia acquired by the second acquisition module (405).
8. The apparatus of claim 7, wherein the computing module (403) is configured to calculate the second torque according to the first torque, the first inertia, and the second inertia by the following formula;
Figure FDA0003435018010000021
wherein M isaFor characterizing the second torque, M for characterizing the first torque, JrFor characterizing said first inertia, JmFor characterizing the second inertia.
9. An electronic device (600) comprising: a processor (602), a communication interface (604), a memory (606), and a communication bus (608), wherein the processor (602), the memory (606), and the communication interface (604) communicate with each other via the communication bus (608);
the memory (606) is configured to store at least one executable instruction that causes the processor (602) to perform operations corresponding to the dynamometer control method of any one of claims 1-4.
10. A computer readable storage medium having stored thereon computer instructions which, when executed by a processor, cause the processor to perform the method of any of claims 1-4.
11. A computer program comprising computer-executable instructions that, when executed, cause at least one processor to perform the method of any one of claims 1-4.
12. A computer program product tangibly stored on a computer-readable medium and comprising computer-executable instructions that, when executed, cause at least one processor to perform the method of any one of claims 1-4.
CN202111609829.8A 2021-12-27 2021-12-27 Dynamometer control method and device, electronic equipment and storage medium Pending CN114459651A (en)

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