CN108362414A - A kind of new automobile emission test road load system - Google Patents
A kind of new automobile emission test road load system Download PDFInfo
- Publication number
- CN108362414A CN108362414A CN201810347215.9A CN201810347215A CN108362414A CN 108362414 A CN108362414 A CN 108362414A CN 201810347215 A CN201810347215 A CN 201810347215A CN 108362414 A CN108362414 A CN 108362414A
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- CN
- China
- Prior art keywords
- roller group
- motor
- road load
- emission test
- load system
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
-
- 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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a kind of new automobile emission test road load systems, include the second tin roller group of the first roller group of concatenated two front rolls composition and concatenated two back rolls composition, and the first roller group is arranged side-by-side with second tin roller group；First roller group connects motor by first shaft coupling, and motor side is equipped with force snesor, and the output shaft of motor is equipped with synchronous belt mechanism, and lazy-tongs band drives the first roller group and the movement of second tin roller group simultaneously.The road load system of the present invention, original eddy current dynamometer is replaced using motor, can bidirectional compensating vehicle simulation inertia, so that equipment mechanism is simplified, fast response time, simulation precision is high；And it is arranged in parallel using the first roller group and second tin roller group, the measurement that such arrangement can effectively improve response speed system torque compared with traditional series system is measured indirectly using force snesor, in addition such arrangement can make equipment shorter, cost is lower to be conducive to promote.
Description
Technical field
The present invention relates to motor-vehicle chassis measurement of power apparatus field more particularly to a kind of new automobile emission test road loads
System.
Background technology
Since current National Environmental pollution condition is increasingly severe, State Environmental Protection Administration will issue stringenter Vehicular exhaust
Emission regulation.Vehicle durability emission test can carry out on runway, road or chassis dynamometer.But on runway and road
Face two problems：1) it can not be tested in strict accordance with the requirement of operating condition of test；2) test during, safety problem without
Method guarantee.And carried out on chassis dynamometer, it can not only solve the problems, such as two above, and more advantageous popularization on a large scale, but
The discharge dynamometer machine or backward in technique used at present, or can not meet current demand.
Chassis dynamometer has simple chassis dynamometer used in use for laboratory chassis dynamometer and car test at present.Use for laboratory bottom
Disk dynamometer machine is expensive, and 48 inches of generally use or larger size single-drum, is unfavorable for promoting the use of on a large scale, such as car test institute
Or vehicle factor appears on the scene and examines.And simple chassis dynamometer generally use electric eddy current dynamometer+flywheel pattern simulation vehicle used in workshop
Inertia, diameter 218mm or so twin drums, response speed is slow, and error information detection is larger.
In view of the above-mentioned problems, proposing the present invention.
Invention content
To solve the above problems, the present invention proposes a kind of new automobile emission test road load system.
Technical solution provided by the invention is：A kind of new automobile emission test road load system, including concatenated two
First roller group of a front roll composition and the second tin roller group of concatenated two back rolls composition, the first roller group with
Second tin roller group is arranged side-by-side；The first roller group connects motor by first shaft coupling, and motor side is equipped with force snesor,
The output shaft of motor is equipped with synchronous belt mechanism, and lazy-tongs 4 are with the first roller group of drive simultaneously and the movement of second tin roller group.
Further, motor includes axis, and axis is equipped with rotor, and the outside of rotor is equipped with stator, and stator includes stator casing,
Stator casing includes the inner end cap for being separately positioned on stator casing both ends, and inner bearing is equipped between inner end cap and axis, inner end cap
Outside is equipped with outer support seat, and outer support seat is equipped with outer bearing, and the outer support seat is connect with mounting surface by holder, holder branch
It supports the motor and is detached from mounting surface；The side of stator casing is equipped with force snesor.
Further, force snesor is pull pressure sensor.
Further, two front rolls are connected by diaphragm coupling, and described two back rolls pass through diaphragm coupling
Connection.
Further, motor is asynchronous machine or synchronous motor.
Further, front roll and back roll are the rotary drum of diameter 400-600mm.
Further, first shaft coupling is diaphragm coupling.
The beneficial effects of the invention are as follows：
The road load system of the present invention, original eddy current dynamometer is replaced using motor, being capable of bidirectional compensating vehicle mould
Quasi- inertia, makes equipment mechanism simplify, fast response time, and simulation precision is high；And it is in parallel using the first roller group and second tin roller group
Arrangement, the measurement that such arrangement can effectively improve response speed system torque compared with traditional series system use power
Sensor measures indirectly, in addition such arrangement can make equipment shorter, cost is lower to be conducive to promote.
Description of the drawings
When considered in conjunction with the accompanying drawings, by referring to following detailed description, can more completely more fully understand the present invention with
And be easy to learn the advantage that many of which is adjoint, but attached drawing described herein is used to provide further understanding of the present invention,
The part of the present invention is constituted, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, does not constitute to this hair
Bright improper restriction, wherein：
Fig. 1 is a kind of structural schematic diagram of new automobile emission test road load system of the present invention；
Fig. 2 is a kind of side view structural representation of the motor of new automobile emission test road load system of the present invention
Figure；
Fig. 3 is a kind of stereogram structural representation of the motor of new automobile emission test road load system of the present invention
Figure；
Wherein：1- motors, 2- force snesors, 3- first shaft couplings, 4- synchronous belt mechanisms, 5- front rolls, 6- roller shaft couplings
Device, 7- back rolls, 8- lifting devices, 9- block rollers, 10- axis, 11- outer support seats, 13- holders, 14- mounting surfaces, outside 15- stators
Shell.
Specific implementation mode
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
As shown in Figs. 1-3, a kind of new automobile emission test road load system, including concatenated 5 groups of two front rolls
At the first roller group and concatenated two back rolls 7 composition second tin roller group, the first roller group and second tin roller group
It is arranged side-by-side；The first roller group connects motor 1 by first shaft coupling 3, and 1 side of motor is equipped with force snesor 2, motor
Output shaft is equipped with synchronous belt mechanism 4, and lazy-tongs 4 are with the first roller group of drive simultaneously and the movement of second tin roller group.Synchronous belt
Mechanism include two synchronous pulleys and with the matched synchronous belt of synchronous pulley, one of synchronous pulley be installed on motor output
On axis, another is installed in the shaft of free roller, this system further includes the act between the first roller group and second tin roller group
Rise device 8 and the block roller 9 positioned at roller group both sides.
Traditional chassis dynamometer includes that electric eddy current dynamometer and hair drag motor.Wherein：
Electric eddy current dynamometer is mainly used to absorbed power, provides resistance according to specific circumstances, to simulate actual road conditions
Resistance.
The anti-effect for dragging motor：Since electric eddy current dynamometer cannot provide power, so the anti-effect for dragging motor is mainly used
It pushes rotary drum to rotate, tests system internal resistance.
This has replaces electric eddy current dynamometer using motor 1, due to 1 characteristic of motor, using electrical inertia come simulate roller with
Difference between vehicle inertia, and can bidirectional analog.As long as choosing the base inertia of roller, most vehicle can be covered substantially
Type, without using more powerful motor, and motor fast response time.
The advantages of using motor：Response time is fast, and precision is high；Due to the characteristic of motor, it can be both used as motor, as
Power plant can also be used as generator, absorbed power, and the power generation of absorption fed back into power grid, efficiently utilize the energy
While, reduce the generation of heat.The power that electric eddy current dynamometer absorbs is wholly converted into heat, it may be necessary to utilize water to
It is cooling, or larger fan cooling is provided.The complexity of increasing system.Due to the characteristic of above-mentioned motor, as long as choosing properly
Roller rotary inertia and motor, so that it may to cover most automobiles, without in addition adding inertial flywheel.It is more advantageous existing
Foundries flow line production pattern.
On assembly line, the basic parameters such as the quality of automobile, the inertia and equipment power train of roller are obtained by scanning bar code
The rotary inertia of system is constant.Automobile shape on real road when driving, needs to overcome surface resistance, the various external force such as windage
Outside, the power that engine provides also needs to accelerate to automobile.So in the situation on the true road surface of simulated automotive in equipment, vapour
Vehicle is not no speed, so on the mass transitions to rotary drum and motor of automobile, instead of attributes such as itself the quality of vehicle.Vapour
Vehicle is that translational velocity is not converted into the translational kinetic energy of automobile the rotational kinetic energy and electricity of rotary drum according to law of conservation of energy
The electric flux of machine, load state of the real simulation automobile in road driving.
In simulated automotive, the rotary inertia of whole equipment is equal to inertia of the automobile on road surface, so working as automobile matter
When amount is more than the equivalent mass of roller, motor provides resistance.When car mass is less than the equivalent mass of roller, motor provides dynamic
Power.The rotating speed of motor is the velocity of rotation of equipment under automobile driving speed under the present situation.Level of torque is according to current vehicle
Acceleration magnitude, resistance etc. are calculated.
Such as Fig. 2-3, wherein motor includes axis 10, and axis 10 is equipped with rotor, and the outside of rotor is equipped with stator, and stator includes
Stator casing 15, stator casing 15 include the inner end cap for being separately positioned on stator casing both ends, are equipped between inner end cap and axis interior
The outside of bearing, inner end cap is equipped with outer support seat 11, and outer support seat 11 is equipped with outer bearing, the outer support seat 11 and installation
Face 14 is connected by holder 13, and holder 13 supports the motor to be detached from mounting surface 14；The side of stator casing 15 is sensed equipped with power
Device 2.
In the prior art, stator casing is directly anchored on mounting surface, it, can be to stator when rotor output torque
A reaction force is generated, because stator casing fixes on the ground, the reaction force generated to stator is stator phase
To the active force on ground, the output torque of rotor can be calculated according to this power, this principle is simple, conveniently, it is at low cost,
The torque of rotor output can be convenient for measuring out；But it because stator casing fixes on the ground, is not easy to the anti-of stator
Active force measures；The operation principle of the present invention：Floating support, power sensing are carried out to stator using outer support frame and outer bearing
Device one end is connect with stator casing, and the other end is fixedly connected with mounting surface, when rotor output torque, can generate one to stator
A reaction force is fixed to the reaction force that stator generates because stator casing is connect by force snesor with ground
The active force on the opposite ground of son, this power are transmitted and are measured by force snesor, you can calculate the torque of rotor.
Inner bearing, outer bearing in the present invention are not represent the type of bearing, inner shaft to distinguish the installation site of bearing
Hold the bearing that same model may be used with outer bearing.
By adopting the above-described technical solution, compared with prior art, the present invention provides a kind of Novel Force measurement motor,
Using motor output action power principle, floating support is carried out to motor stator, torque measurement is converted into the counter-force for stator
Measurement, to learn that the output torque of rotor, the present invention are supported stator using outer bearing, outer bearing is when in use
Stationary state, loss is smaller, and internal resistance is stablized.
The force snesor 2 that the present invention uses is pull pressure sensor.
Further, two front rolls 5 and two back rolls are connected in series with by roller shaft coupling 6 respectively, roller shaft coupling
Device 6 is diaphragm coupling.It since diaphragm coupling is compared with other positive couplings, is easily installed, and safeguards simple.
More preferably, motor 1 is asynchronous machine or synchronous motor.Can bidirectional compensating vehicle simulation inertia, make device structure
Simplify, fast response time, simulation precision higher.
More preferably, front roll 5 and back roll 7 are the rotary drum of diameter 400-600mm.It is diameter relative to traditional roller
218mm rotary drums, here rotary drum use diameter 400-600mm, preferably 550mm, reduce squeegee action, be more nearly road surface.And make
Equipment has the base inertia of bigger, avoids using flywheel, simplifies structure, to simulate the vehicle of bigger, increases test vehicle
Coverage area.And in same bearing situation, big drum can provide higher speed.
More preferably, first shaft coupling 3 is diaphragm coupling.Diaphragm coupling is used in this scheme, is easily installed and is safeguarded.
The road load system of the present invention, original eddy current dynamometer is replaced using motor, being capable of bidirectional compensating vehicle mould
Quasi- inertia, makes equipment mechanism simplify, fast response time, and simulation precision is high；And it is in parallel using the first roller group and second tin roller group
Arrangement, the measurement that such arrangement can effectively improve response speed system torque compared with traditional series system use power
Sensor measures indirectly, in addition such arrangement can make equipment shorter, cost is lower to be conducive to promote.
The description of the above examples is only intended to facilitate the understand of the core idea of the present invention；Meanwhile for the general of this field
Technical staff, according to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion
The content of the present specification should not be construed as limiting the invention.
Claims (7)
1. a kind of new automobile emission test road load system, which is characterized in that formed including concatenated two front rolls (5)
The first roller group and concatenated two back rolls (7) composition second tin roller group, the first roller group and second tin roller
Group is arranged side-by-side；The first roller group connects motor (1) by first shaft coupling (3), and the motor (1) side is equipped with
The output shaft of force snesor (2), the motor is equipped with synchronous belt mechanism (4), and the synchronous belt mechanism (4) drives simultaneously
First roller group and the movement of second tin roller group.
2. a kind of new automobile emission test road load system according to claim 1, which is characterized in that the motor
Including axis (10), the axis (10) is equipped with rotor, and the outside of the rotor is equipped with stator, and the stator includes stator casing
(15), the stator casing (15) includes the inner end cap for being separately positioned on stator casing both ends, is set between the inner end cap and axis
There are inner bearing, the outside of the inner end cap to be equipped with outer support seat (11), the outer support seat (11) is equipped with outer bearing, described outer
Support base (11) is connect with mounting surface (14) by holder (13), and the holder (13) supports the motor to be detached from mounting surface
(14)；The side of the stator casing (15) is equipped with force snesor (2).
3. a kind of new automobile emission test road load system according to claim 2, which is characterized in that the power passes
Sensor (2) is pull pressure sensor.
4. a kind of new automobile emission test road load system according to claim 3, which is characterized in that described two
A front roll (5) is connected by diaphragm coupling, and described two back rolls (7) are connected by diaphragm coupling.
5. a kind of new automobile emission test road load system according to claim 4, which is characterized in that the electricity
Machine (1) is asynchronous machine or synchronous motor.
6. according to a kind of new automobile emission test road load system of claim 1-5 any one of them, which is characterized in that
The front roll (5) and back roll (7) use the rotary drum of diameter 400-600mm.
7. according to a kind of new automobile emission test road load system of claim 1-5 any one of them, which is characterized in that
The first shaft coupling (3) is diaphragm coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810347215.9A CN108362414A (en) | 2018-04-18 | 2018-04-18 | A kind of new automobile emission test road load system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810347215.9A CN108362414A (en) | 2018-04-18 | 2018-04-18 | A kind of new automobile emission test road load system |
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| Publication Number | Publication Date |
|---|---|
| CN108362414A true CN108362414A (en) | 2018-08-03 |
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ID=63008542
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810347215.9A Pending CN108362414A (en) | 2018-04-18 | 2018-04-18 | A kind of new automobile emission test road load system |
Country Status (1)
| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109164388A (en) * | 2018-11-16 | 2019-01-08 | 华东交通大学 | A kind of performance detecting system of hub motor for electric automobile |
| CN109506945A (en) * | 2018-10-18 | 2019-03-22 | 珠海高新区同力机械有限公司 | A kind of inertia dynamometer machine |
| CN112747852A (en) * | 2019-10-29 | 2021-05-04 | 上海华依科技集团股份有限公司 | Device and method for measuring stress or moment of large-size heavy component |
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| CN109506945A (en) * | 2018-10-18 | 2019-03-22 | 珠海高新区同力机械有限公司 | A kind of inertia dynamometer machine |
| CN109164388A (en) * | 2018-11-16 | 2019-01-08 | 华东交通大学 | A kind of performance detecting system of hub motor for electric automobile |
| CN112747852A (en) * | 2019-10-29 | 2021-05-04 | 上海华依科技集团股份有限公司 | Device and method for measuring stress or moment of large-size heavy component |
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