CN113776714A - Measuring system and measuring method for wheel dragging torque - Google Patents
Measuring system and measuring method for wheel dragging torque Download PDFInfo
- Publication number
- CN113776714A CN113776714A CN202111062575.2A CN202111062575A CN113776714A CN 113776714 A CN113776714 A CN 113776714A CN 202111062575 A CN202111062575 A CN 202111062575A CN 113776714 A CN113776714 A CN 113776714A
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- 238000000034 method Methods 0.000 title claims description 14
- 238000004590 computer program Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 3
- 238000000691 measurement method Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/013—Wheels
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a wheel dragging torque measuring system which comprises a driving motor control storage device, a connecting device and an equipment driving wheel, wherein a driving motor is arranged in the driving motor control storage device, the driving motor is connected with the connecting device through a rotating shaft, the top of the connecting device is connected with the equipment driving wheel, the driving motor drives the connecting device to rotate, the connecting device and the equipment driving wheel synchronously move, the equipment driving wheel is tangent to the wheel, and during movement, the linear speed of the equipment driving wheel is the same as that of the wheel. The invention simultaneously satisfies the measuring equipment with high universality, simple and convenient operation and simple structure and can test the wheel dragging torque under different vehicle speeds, provides test equipment for measuring the wheel dragging torque under different vehicle types and different vehicle speeds, and provides data support for optimizing the whole vehicle dragging torque of a whole vehicle factory.
Description
Technical Field
The invention belongs to the field of vehicle control, and particularly relates to a system and a method for measuring wheel dragging torque.
Background
The drag torque is an important performance index of the motor vehicle, and directly influences the dynamic property and the economical property of the motor vehicle. And because of energy, environmental problem, passenger car oil consumption regulation is becoming stricter day by day, and pure electric vehicle scale is expanding rapidly, no matter to the optimization of oil consumption or power consumption, the measurement and the analysis of dragging moment also seem to be more important in the design process. The dragging torque at the wheel of the motor vehicle is larger, and the dragging torque at the wheel comprises parameters such as dragging caused by friction of a hub bearing, a brake actuating device and a driving shaft; it is important to measure the drag torque at the wheels. However, in the prior art, the wheel dragging torque is calculated, so that the universality is poor, the precision is low and the operation is complex.
Disclosure of Invention
The invention aims to provide a measuring system and a measuring method for wheel dragging torque, and simultaneously meets the requirements of measuring equipment which has high universality, is simple and convenient to operate and simple in structure and can test the wheel dragging torque under different vehicle speeds, providing test equipment for measuring the wheel dragging torque under different vehicle types and different vehicle speeds, and providing data support for optimizing the whole vehicle dragging torque of a whole vehicle factory.
In order to solve the technical problems, the technical scheme of the invention is as follows: a measuring system of wheel dragging torque comprises a driving motor control storage device, a connecting device and an equipment driving wheel, wherein a driving motor is arranged in the driving motor control storage device and is connected with the connecting device through a rotating shaft, the top of the connecting device is connected with the equipment driving wheel, the driving motor drives the connecting device to rotate, the connecting device and the equipment driving wheel synchronously move, the equipment driving wheel is tangent to the wheel, and during movement, the equipment driving wheel is the same as the linear velocity of the wheel.
There is also provided a measurement method using a measurement system of wheel drag torque as described above, comprising the steps of:
driving motor with preset driving torque M1Operation, recording the speed N of the drive motor at that time1；
According to a preset driving torque M1Calculating to obtain the wheel dragging torque of the wheel at the moment;
according to the rotation speed N of the drive motor1Calculating to obtain the linear velocity of the wheel;
the wheel dragging torque M under different wheel linear speeds can be obtained by controlling the driving motor to repeat the steps with different driving torques2。
According to a preset driving torque M1The method for calculating the wheel dragging moment comprises the following steps:
M1/R1＝M2/R2
wherein R is1Radius of the driving wheel of the apparatus, R2Is the wheel radius.
According to the rotation speed N of the drive motor1The method for calculating the linear speed of the wheel comprises the following steps:
V＝2πN1*R1
wherein V is the wheel linear velocity.
There is also provided a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method as claimed in any one of the above when executing the computer program.
There is also provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of the method according to any one of the preceding claims.
Compared with the prior art, the invention has the beneficial effects that:
the device has the advantages of high universality, simplicity and convenience in operation, simple structure and capability of testing the wheel dragging torque under different vehicle speeds, provides test equipment for measuring the wheel dragging torque under different vehicle types and different vehicle speeds, and provides data support for optimizing the whole vehicle dragging torque of a whole vehicle factory.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
in the figure, 1-wheel, 2-equipment driving wheel, 3-connecting device, 4-driving motor control storage device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to fig. 1, the device for measuring the vehicle dragging torque of the present invention comprises a device driving wheel 2, a connecting device 3, and a driving motor control storage device 4. The device driving wheel 2 is made of a material having a sufficiently large coefficient of adhesion.
The drive wheel 2 of the apparatus is aligned with the wheel 1, noting that the axial median cut of the drive wheel and the wheel 1 need not coincide but need to be parallel. The driving wheel is driven to rotate by using the driving motor, so that the wheel 1 is driven to rotate, and the driving torque of the driving motor at the moment is recorded as M1(Nm) at a rotational speed of the drive motor of N1(rps). Using formula M1/R1＝M2/R2，M2＝M1*R2/R1The drag torque of the wheel 1 at this time is calculated, wherein: m2For drag torque of wheel 1, R1For the equipment driving wheel 2 radius, R2Is the radius of the wheel 1 and it is considered that there should be no loss of any slip between the equipment drive wheel 2 and the wheel 1 at this time. Using the formula V-2 pi N1*R1The tire linear velocity at this time is calculated and can be understood as the vehicle speed V (m/s). Recording simultaneously a V and its corresponding M2So that the wheel 1 at this vehicle speed can be dragged by the moment. The step can be repeated for many times, so that dragging torque under different vehicle speeds can be recorded.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. The measuring system of the wheel dragging torque is characterized by comprising a driving motor control storage device, a connecting device and an equipment driving wheel, wherein the driving motor is arranged in the driving motor control storage device and is connected with the connecting device through a rotating shaft, the top of the connecting device is connected with the equipment driving wheel, the driving motor drives the connecting device to rotate, the connecting device and the equipment driving wheel synchronously move, the equipment driving wheel is tangent to the wheel, and during movement, the equipment driving wheel and the wheel have the same linear velocity.
2. A measurement method using a measurement system of a wheel drag torque according to claim 1, comprising the steps of:
driving motor with preset driving torque M1Operation, recording the speed N of the drive motor at that time1；
According to a preset driving torque M1Calculating to obtain the wheel dragging torque of the wheel at the moment;
according to the rotation speed N of the drive motor1Calculating to obtain the linear velocity V of the wheel;
controlling the driving motor to repeat the steps with different driving torques to obtain the wheel dragging torque M under different wheel linear velocities2。
3. Measuring method according to claim 2, characterized in that the drive torque M is preset according to1The method for calculating the wheel dragging moment comprises the following steps:
M1/R1＝M2/R2
wherein R is1Radius of the driving wheel of the apparatus, R2Is the wheel radius.
4. Measuring method according to claim 2, characterized in that the rotation speed N of the drive motor is determined according to1The method for calculating the linear speed of the wheel comprises the following steps:
V＝2πN1*R1
wherein V is the wheel linear velocity.
5. A computer arrangement comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method as claimed in any of claims 2-4 are implemented when the computer program is executed by the processor.
6. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 2 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111062575.2A CN113776714A (en) | 2021-09-10 | 2021-09-10 | Measuring system and measuring method for wheel dragging torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111062575.2A CN113776714A (en) | 2021-09-10 | 2021-09-10 | Measuring system and measuring method for wheel dragging torque |
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| Publication Number | Publication Date |
|---|---|
| CN113776714A true CN113776714A (en) | 2021-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111062575.2A Pending CN113776714A (en) | 2021-09-10 | 2021-09-10 | Measuring system and measuring method for wheel dragging torque |
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| CN (1) | CN113776714A (en) |
Citations (11)
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|---|---|---|---|---|
| GB8405075D0 (en) * | 1983-03-01 | 1984-04-04 | Gerber Scientific Instr Co | Friction drive mechanism |
| CN2738223Y (en) * | 2004-10-13 | 2005-11-02 | 中华人民共和国慈溪出入境检验检疫局 | Bicycle brake performance testing machine |
| CN201163230Y (en) * | 2008-02-02 | 2008-12-10 | 王健 | Device for measuring elevator balance factor by torsion-testing method |
| CN102713353A (en) * | 2010-03-08 | 2012-10-03 | 爱信艾达株式会社 | Hybrid drive device |
| CN203824762U (en) * | 2013-12-27 | 2014-09-10 | 深圳市安车检测股份有限公司 | Drum-type chassis dynamometer gauge |
| CN206496902U (en) * | 2017-03-03 | 2017-09-15 | 中车株洲电力机车有限公司 | One kind wheel is to top wheel test device |
| CN207019830U (en) * | 2017-03-07 | 2018-02-16 | 浙江亚太机电股份有限公司 | Automobile brake pincers drag moment inspecting frock |
| CN109883736A (en) * | 2019-03-26 | 2019-06-14 | 成都西交智众科技有限公司 | A kind of novel axle fatigue test board |
| CN209745453U (en) * | 2019-05-09 | 2019-12-06 | 东风汽车集团有限公司 | dynamic testing device for brake dragging torque |
| CN111964830A (en) * | 2020-07-29 | 2020-11-20 | 东风汽车集团有限公司 | Dynamic test method for brake dragging torque |
| CN113280968A (en) * | 2021-05-08 | 2021-08-20 | 安徽江淮汽车集团股份有限公司 | Vehicle friction plate dragging torque test method, distribution diagram test method and device |
-
2021
- 2021-09-10 CN CN202111062575.2A patent/CN113776714A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8405075D0 (en) * | 1983-03-01 | 1984-04-04 | Gerber Scientific Instr Co | Friction drive mechanism |
| CN2738223Y (en) * | 2004-10-13 | 2005-11-02 | 中华人民共和国慈溪出入境检验检疫局 | Bicycle brake performance testing machine |
| CN201163230Y (en) * | 2008-02-02 | 2008-12-10 | 王健 | Device for measuring elevator balance factor by torsion-testing method |
| CN102713353A (en) * | 2010-03-08 | 2012-10-03 | 爱信艾达株式会社 | Hybrid drive device |
| CN203824762U (en) * | 2013-12-27 | 2014-09-10 | 深圳市安车检测股份有限公司 | Drum-type chassis dynamometer gauge |
| CN206496902U (en) * | 2017-03-03 | 2017-09-15 | 中车株洲电力机车有限公司 | One kind wheel is to top wheel test device |
| CN207019830U (en) * | 2017-03-07 | 2018-02-16 | 浙江亚太机电股份有限公司 | Automobile brake pincers drag moment inspecting frock |
| CN109883736A (en) * | 2019-03-26 | 2019-06-14 | 成都西交智众科技有限公司 | A kind of novel axle fatigue test board |
| CN209745453U (en) * | 2019-05-09 | 2019-12-06 | 东风汽车集团有限公司 | dynamic testing device for brake dragging torque |
| CN111964830A (en) * | 2020-07-29 | 2020-11-20 | 东风汽车集团有限公司 | Dynamic test method for brake dragging torque |
| CN113280968A (en) * | 2021-05-08 | 2021-08-20 | 安徽江淮汽车集团股份有限公司 | Vehicle friction plate dragging torque test method, distribution diagram test method and device |
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|---|
| 胡富强 等: "浅析车轮拖滞力矩测量干扰因素", 《汽车科技》 * |
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