CN1188685C - Portable roller dynamometer and vehicle testing method - Google Patents
Portable roller dynamometer and vehicle testing method Download PDFInfo
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- CN1188685C CN1188685C CNB998063029A CN99806302A CN1188685C CN 1188685 C CN1188685 C CN 1188685C CN B998063029 A CNB998063029 A CN B998063029A CN 99806302 A CN99806302 A CN 99806302A CN 1188685 C CN1188685 C CN 1188685C
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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
- G01M17/0072—Wheeled or endless-tracked vehicles the wheels of the vehicle co-operating with rotatable rolls
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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
- G01M17/0072—Wheeled or endless-tracked vehicles the wheels of the vehicle co-operating with rotatable rolls
- G01M17/0074—Details, e.g. roller construction, vehicle restraining devices
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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
- G01M17/0072—Wheeled or endless-tracked vehicles the wheels of the vehicle co-operating with rotatable rolls
- G01M17/0076—Two-wheeled vehicles
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Testing Of Engines (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
A roller dynamometer is provided, having at least one supporting carriage having a rotatable roller and a dynamometer linked to the roller for measuring torque output of a vehicle. The carriages are rollable on a substrate for positioning under a vehicle. In one aspect, multiple dynamometer and roller units are provided, for engagement with multiple vehicle wheels, with the units being linked electrically for common control by a control unit that simulates either straight line or curved driving conditions. In a further aspect, the dynamometer is supported on the carriage by a rotary mount. In a further aspect, the rollers have a generally hourglass shape to permit vehicle wheel self-centering.
Description
The invention technical field
The present invention relates to a kind of dynamometer and method of testing, it is used to simulate road conditions, is used to test the vehicle that has two driving wheels at least, particularly relates to a kind of dynamometer with the roller that engages with wheel, and it is quite compact, cost is low and can be portable.In addition, the present invention relates to a kind of apparatus and method that allow to simulate straight line and crooked transport condition.The present invention also goes for having the vehicle use of single driving wheel such as motorcycle.
Background of the present invention
If the simulating vehicle road conditions will help emission test and vehicle maintenance effectively.This can arrange usually and realize that described roller is effectively connected on the dynamometer to be used for that the load of control is acted on roller by means of the roller that contacts with the vehicle wheel.The amount of load will be roller rotating speed (i.e. Mo Ni the speed of a motor vehicle), simulation and friction loss really and the function of representing the polynomial equation of particular vehicle windage.Two aspects of dynamometer simulating vehicle performance, i.e. inertia and resistance.Inertia is arranged by the equivalent of the rotating mass of the weight of vehicle and vehicle in this case.By dynamometer roller is applied resistance and come simulated resistance, its wheel velocity and air resistance coefficient by the reality of vehicle is arranged.Can provide inertia energy by means of the simulation of flywheel and other means.
Traditional roller test for motor vehicles generally includes one or more large rollers, has the single roller of crossing over a left side and right wheel.For example, disclosed device is that all are such all in United States Patent (USP) 3554023 (Geul), United States Patent (USP) 5154076 (Wilson et al) and United States Patent (USP) 5193386 (Hesse, Jr.Et al).Can know, a kind of test suite of unique driving wheel of the contact vehicle that is used for motorcycle can be provided.
Traditionally can be by providing the dynamometer resistance such as arrestment mechanisms such as motor, waterbrakes., also can adopt other resistance generation device and the present invention is not limited to the use of any specific clamping device.
Be desirable to provide a kind of portable chassis ergograph assembly, it can be transported to the vehicle testing place such as the station easily, and can install quickly and easily to be used to measure emission test.This will eliminate the requirement that makes each vehicle go to the testing location of appointment dividually.For this purpose, be desirable to provide a kind of portable chassis ergograph assembly, it is made up of single lower unit, and this single lower unit can separately be carried and be installed easily on test ground, and need not mechanically connect these lower unit structurally.The solution that the inventor proposes provides a single left side and right-hand side roller dynamometer lower unit, and it can be placed into simply on the ground of the wheel center of testing vehicle.Following assembly like this can be electrically connected by common control sub-assembly.
Known from prior art, a kind ofly be used to have two or more driving wheels the testing vehicle of (promptly by motor-driven wheel) comprises a single left side and right side roller.The roller of such assembly or share a common axle or connected by a right bar or a frame of span roller.Referring to example United States Patent (USP) 5193386 (Hesse, Jr.et.al) and open source literature WO97/32189 (D ' Angelo).Because the large-sized framework that needs in this layout, they can not provide a kind of portable dynamometer to arrange can allow convenient the conveying and installation.Assembling at this sampling device of testing location spends a large amount of time and requires specific technician.Such layout can not reach the requirement of the simple test suite of carrying easily, and it can not be simply in the use test assembled on site.
The other useful characteristics of vehicle dynamometer are that they can be centered in wheel of vehicle on the roller.It can realize that they inwardly form tapering each other to support two relative driving wheels (referring to Hesse, Jr.et.al) by being provided as right frustum roller.In this layout, vehicle is centering between an independent left side and right-hand side frustum roller., this arrangement requirement right side is connected with the left-hand side roller assembly or with the framework of rigidity or is fixed on the bottom surface, so that prevent the lateral slip of roller assembly.In addition, prior art also discloses the right side and the left-hand side roller that separates, and they move on a common bar independently, and when roller (D ' Angelo) on wheel of vehicle during by centering, they only can be locked in the position.Yet this layout is not suitable for design of the present invention, because its requires bar or framework with the left large-sized rigidity that is connected with the right-hand side roller, will be not suitable for portable use.In order to reach the purpose of portability assembly simply and easily, be desirable to provide a kind of simple device, be used for being centered in vehicle on the dynamometer assembly at the device run duration.In the solution that these inventors provide, any external centralising device is not provided, and consistent with the set-up mode that is placed on a ground left side and right and roller lower unit.
Knownly provide a kind of logical circuit, before it can be controlled independently and roller setting afterwards to be used to test different front/rear vehicle load parameters, for example attitude axle.Referring to EPO 0522198A1 (Yorikatso)., prior art does not propose to use logical circuit to control the right side that does not have mechanical connection and the sub-component that rolls left separately.
Traditional proving installation based on dynamometer normally bigger, heavy and corresponding more expensive.This part is owing to the setting of the single roller that contacts with the left and right sidesing driving wheel of vehicle, and is promptly enough wide being used for all conventional truck in fact, and causes the layout of the roller of big weight.This shortcoming can solve by a kind of proving installation is provided, and this device is formed by assembly under a single left side and the right-hand side roller dynamometer, is used for support vehicle driving wheel individually, and following assembly is not mechanically connected, so that transportation and assembling with providing convenience.Independent dynamometer assembly only is electrically connected by controller.So, can be provided with that single dynamometer is communicated with common control device so that the simulation load between driving wheel of vehicle equates.This arranges load that does not wait and the wheel velocity that also allows between single assembly, with simulation travelling around the curve vehicle.
The present invention's general introduction
The purpose of this invention is to provide a kind of improved roller dynamometer and be used to simulate the method for testing of road conditions with testing vehicle.
Further purpose of the present invention provides a kind of roller dynamometer, it comprises a plurality ofly not having mechanical connection each other to be used for the dynamometer assembly of common rotational motion, each dynamometer assembly contacts with independent wheel, has the effective width of the roller dynamometer that can change by the distance that changes between single assembly.
Another object of the present invention provides a kind of roller dynamometer, and it can be used for any traditional vehicle, and the ability with simulation straight line or curve form state.
Another purpose of the present invention provides light relatively and the dynamometer that can be portable of a kind of weight, and it can be transported to testing location easily.
According to above-mentioned purpose, the present invention comprises a kind of roller dynamometer vehicle testing assembly on the one hand, is used for having the vehicle simulation road conditions of two driving wheels at least, and the vehicle of described type is supported on pedestal solid, level, for example on the base plate and comprise:
First and second roller assemblies, be used for the right side and left driving wheel of vehicle are supported on the roller tube rotationally, each roller assembly is connected with independent dynamometer and has roller speed and wheel torque induction installation, each described roller assembly along axially moving independently, is characterized in that on described ground:
The first and second roller bracket frames, be used for corresponding first and second roller assemblies directly are supported on described ground independently, but described first and second roller brackets and relevant roller assembly comprise respectively one independently with the conveying device of separating, this device and other stand frame and roller assembly do not have mechanical connection;
The support railroad that is connected with at least one described stand frame, with allow described at least one stand frame be independent of other described stand frame in the described substrate, along rolling with respect to the horizontal direction of the extension axis of described vehicle and substrate, when supporting described vehicle;
Support each support of dynamometer, each dynamometer joins on the corresponding roller tube to be used to the applying corresponding roller of loading, can simulate whereby with vehicle that described device contacts on road conditions.
Frame support means, it preferably includes the roller means such as linear bearing, allows independently laterally the moving of support (with respect to vehicle).This will permit when vehicle uses, the spacing of support regulate with adapt to different vehicle (allowing the use of compacter roller relatively) and the roller on wheel of vehicle from centering.When the crooked transport condition of device simulation, the latter is particularly useful.A left side and right-hand side roller bracket can be positioned on the stayed surface independently, and do not have each other without any the solid mechanical connection.This will be convenient to carry and install.
Described each roller has a step part at each described opposed end, is used as wheel stopper or flywheel.
Described device also further comprises a rotation fabricated section that is used at least one dynamometer is installed to corresponding described support, is used to limit rotatablely moving with respect to described support.
Described rotation fabricated section preferably includes first and second concentric elements, and for example one coils or the journal bearing layout, and they are connected with support relative to each other to rotate with described dynamometer respectively.
In a scheme, dynamometer is connected with a controller, and described controller receives the information of wheel velocity and moment of torsion from each described dynamometer.The torque control device that controller comprises the treating apparatus that is used for the speed discrepancy of comparison between described first and second dynamometers and is used to control the moment of torsion that is applied by at least one described dynamometer equates with the rotational speed separately that makes described roller basically.
With respect to a dynamometer that rotates more slowly, described control device preferably indicates the dynamometer of very fast rotational speed to apply the roller of a bigger power absorption to very fast rotation.
Controller comprises whole power absorption calculation elements, whole absorbed powers that wherein will be in the middle of all dynamometers as the speed of vehicle mass, each roller and acceleration and with the function calculation of the correlation of the aerodynamic force of vehicle and friction loss and the loss within dynamometer.
In a scheme, the control that torque control device further allows one or two dynamometer is simulated crooked transport condition with the controlled unequal rotational speed of using on the roller separately.
In another scheme, the present invention includes a kind of roller dynamometer vehicle testing assembly, be used for the road conditions of simulating vehicle, comprising:
At least one is pivotally mounted to roller on the framework, is used for supporting and contacting wheel of vehicle rotationally;
One joins the dynamometer of described at least one roller to, be used for a load is applied to roller, whereby with vehicle that described device engages on simulate road conditions; It is characterized in that:
One rotating fabricated section is used for described dynamometer is joined on the described framework being used for rotatablely moving of described relatively support, and described rotation fabricated section comprises the first and second concentric elements that join to respectively on described dynamometer and the support.
Rotating fabricated section can have above-mentioned characteristics expediently.In addition, this device is provided with expediently and is used for and the contacted roller of the driving wheel of testing vehicle.
In yet another aspect, the present invention includes a kind of roller dynamometer vehicle testing assembly, be used for the vehicle that has two driving wheels is at least simulated road conditions, comprising:
The first and second roller dynamometer assemblies, be used for independently engaging with the corresponding driving wheel, each described roller dynamometer assembly comprises that at least one joins the roller on the corresponding dynamometer to, the described first and second dynamometer assemblies be used for relative to each other independently rotation and each have rotating speed and moment of torsion sniffer and device for power absorption; It is characterized in that:
One is used for receiving from described dynamometer the control device of rotating speed and torque information, and has a logical circuit to be used for comparison and to measure any velocity contrast between described dynamometer and control at least one described dynamometer to respond described velocity contrast.
Described logical circuit controller is controlled the device for power absorption of described first and second dynamometers to realize straight line or crooked simulation of travelling.
Described controller comprises whole power absorption calculation elements, whole absorbed powers that wherein will be in the middle of all dynamometers as the speed of vehicle mass, each roller and acceleration and with the function calculation of the correlation of the aerodynamic force of vehicle and friction loss and the loss within dynamometer.
In yet another aspect, the invention provides a kind of travel method of road conditions of simulating vehicle that is used for, comprise the following steps:
The first and second roller dynamometer assemblies are provided, and each assembly has moment of torsion and speed probe and one and is used for from the controller of each dynamometer assembly inbound pacing and torque information and the resistance that applied of control independently;
Described at least two driving wheels are supported on the corresponding first and second roller dynamometer assemblies;
Drive described at least two driving wheels with described thermometrically; Measure the speed and the moment of torsion of described at least two driving wheels independently; It is characterized in that:
Control at least one independently, preferred two roller dynamometer assemblies to be controlling its rotating speed, thereby selectively simulation or straight line or crooked vehicle route.
Also comprise step:, wherein will calculate as the speed of vehicle mass, each roller and acceleration and with the function of the correlation of the aerodynamic force of vehicle and friction loss and the loss within dynamometer at the whole absorbed powers in the middle of all dynamometers with whole power outputs of the algorithm measurement vehicle that calculates whole dynamometer power absorption.
Roller in above-mentioned arbitrary apparatus and method is excellent to have the shape that is generally hourglass, be used for by this way described wheel of vehicle from centering, promptly wheel of vehicle general respectively in the lumbar region of roller by centering.
Roller in above-mentioned arbitrary apparatus and method has the shape that is generally hourglass, be used for described wheel of vehicle from centering.
By the detailed description and the explanation of preferred embodiment, below with present invention is described.
The drawing explanation
Fig. 1 is the planimetric map of one embodiment of the invention;
Fig. 2 is the side view of the part of the device among Fig. 1;
Fig. 2 a is the end-view of Fig. 1;
Fig. 3 is the planimetric map of the single roller means used of the present invention;
Fig. 4 is the planimetric map of the embodiment of roller bracket;
Fig. 5 is the side view of Fig. 4;
Fig. 6 is the skeleton view of device in use;
Fig. 7 is the block diagram that shows the present invention's operation;
The similar in the accompanying drawings similar parts of mark representative.
Detailed description of preferred embodiment
With reference to figure 1 and Fig. 2, device 10 comprises the first and second identical supports 24, has shown one of them here.In use, when vehicle and means for engaging are tested, support separately be positioned at a left side and right wheel below.Support supports single roller respectively, and is as described below, be used for engaging with wheel, and dynamometer matches with roller.Support is usually located on the crust 15 level and smooth, level.By with the roller means of each support associated, for example arrange bearing and arranged for 30 (in Fig. 2, showing) at the low lip-deep linear bearing of support, each support can be moved by laterally (with respect to vehicle).Roller means further also allows support laterally to roll in support vehicle, so as can to carry out the support roller from centering.
With reference now to Fig. 3-5,, each support 24 comprises the stand frame 32 that is generally rectangle, this stand frame 32 comprises side frame element 34 and end frame element 36, and stand frame integral body is divided equally open to form first and second rectangle support part 32a and the 32b by paired horizontal frame element 40 and 42.The first holder part 32a support rollers, as described below, the second holder part 32b supports dynamometer, and is as described below.The end of the first holder part 32a and horizontal frame element 36 and 40 support a pair of neck bush 50 respectively to be used for support rollers 54 rotationally.Roller Shaft 56 quilts related with each roller axle journal rotationally are supported among the neck bush.The end of the second holder part 32b and lateral direction element 36 and 42 support dynamometer fabricated section 60, so that rotationally dynamometer 46 is installed on the support.Below with detailed dynamometer and fabricated section.The first holder part 32A supports and is used to support and the rotatable a pair of roller separately 54 in parallel orientation that engages with the driving wheel of vehicle.
On the one hand, in a pair of roller 54 engages with dynamometer.Another roller freely rotates.So independent dynamometer of each stent support, this dynamometer comprise the power absorption device (" PCU ") that links to each other with the single unit vehicle driving wheel.As can be seen, by improving, the size of roller can be contained in truck and the commercial car to find the paired driving wheel of type.
Each dynamometer fabricated section 60 comprises the dish 62 that is installed on the holder part 32b, is used for engaging with the respective end portions surface 64 of dynamometer 46.The ring shooting of bearing bridge 66 is fixed to the corresponding end surface 64 of dynamometer, and engages with shaft collar rotationally, and this shaft collar has the concave edges 68 that comprises bearing race.
The strainmeter retainer comprises respectively first and second arms 70,72 that stretch out from dynamometer and support element 32b.Strainmeter 74 joins with separately arm and limits rotation with respect to the dynamometer of support.Strainmeter comprises a transducer that is used for the torque axis between dynamometer and support is changed into current signal.
In another embodiment, as shown in Figure 3 and Figure 4, support 24 comprises that respectively the frame element 80 of rectangular shape is to be used for support rollers.Dynamometer support component 82 comprises that one outwards is generally tabular element away from what stretched out at the device center from horizontal frame element.Each dynamometer supports has a upwardly extending axle sleeve 84, to be used for connecting rotationally and supporting dynamometer 86.Each roller 54 removably engages with corresponding dynamometer by dismountable shaft coupling 90.One unshowned is connected to strainmeter that dynamometer supports with dynamometer and limits the rotation of each dynamometer and allow acting on the accurate measurement of the rotating force on the dynamometer.
With reference to the concrete roller 54 that shows in Fig. 5, each roller comprises a step part that makes progress 67 on each end separately, and it is used as flywheel and takes turns stopper to reduce the danger that wheel separates with roller.
Each roller 54 has the shape that is generally hourglass, and comprises a medial axis, have with respect to the longitudinal axis of roller with about 170 ° to about 179 ° a 59 ' rolling body that angle is told from the mid point of medial axis usually.
Found this be furnished be beneficial to accurate location and strengthen wheel on roller from centering, and avoid the tire inordinate wear.Corresponding to regulating from laterally moving by rolling of the support on pedestal is mobile of centering motion.
Fig. 6 has shown the setting of the device 10 under preceding (driving) wheel of vehicle 100 (dotting).Shown in layout in, the vehicle in test is the vehicle of front-wheel drive.By change or reorientate this device and/or be provided for cooperating with driving wheel of vehicle accordingly attachment device, this device can be applicable to motorcycle and other single wheel vehicle, rear wheel drive vehicle or four-wheel drive vehicle easily, or other drive form.
Each dynamometer comprises a rotation-speed measuring device, and for example internal optics reader (with reference to hereinafter) is used for the measurement of the turned position of dynamometer axle.The optical pickup data are sent in the central processing unit described below, and it calculates the velocity of rotation and the corresponding roller of dynamometer.
Each dynamometer is connected to a central control unit 200, and is described by Fig. 7 now.The load that control device allows a single left side and right dynamometer to apply and equates is basically given corresponding wheel, with simulation straight-line travelling state.In addition, can also apply an in check unequal load with simulation travelling around the vehicle of curve.
The signal that can comprise amplitude and changeable frequency from the electric signal of the sensor 202 that links to each other with strainmeter 74.These signals are sent to controller with the signal from optical position reader 204.Controller receives respectively from the speed of each corresponding roller means and torque information.In the simulation of straight-line travelling, all rollers should be with identical speed rotation.Because do not have mechanical connection with conveying rotary motion between the roller means corresponding to vehicle side separately, the logic that produces by controller connects makes controller control sensor keep identical speed.Therefore controller comprises that a comparator circuit 206 is to estimate any velocity contrast between dynamometer separately.If detect velocity contrast, this information is transmitted to logical circuit 207, and this circuit 207 is controlled a left side and the right electromotor control circuit 208 that links to each other with each dynamometer again, and it increases or reduce the load by dynamometer applied separately again as required.
A) quality of vehicle;
B) real-time rotation acceleration;
C) simulated velocity of rotation and rotating load, the latter is based on known vehicle aerodynamic force and friction loss factor;
D) friction loss within the quilt dynamometer that compensates; With
E) power of vehicle output.
The speed of a motor vehicle of display 212 display simulations, radius of turn and power output.
The embodiment that more than provides has illustrated the dynamometer of a motor types; Can use any suitable PAU as can be seen.
Further as can be seen, described the apparatus and method of the vehicle that is suitable for having at least two drive wheels, the present invention can also be suitable for having single drive wheels, for example use of the vehicle of motorcycle.
Although described the present invention by embodiment above, as can be seen under the situation that does not break away from spirit of the present invention and protection domain, can make amendment and change the present invention.
Claims (15)
1. roller dynamometer vehicle testing assembly, be used for having the vehicle simulation road conditions of two driving wheels at least, the vehicle of described type is on the ground supported, with comprise: first and second roller assemblies (24), be used for the right side and left driving wheel of vehicle are supported on roller tube (54) rotationally, each roller assembly is connected with independent dynamometer and has roller speed and wheel torque induction installation, and each described roller assembly along axially moving independently, is characterized in that on described ground:
The first and second roller bracket frames (32) are used for corresponding first and second roller assemblies directly are supported on described ground independently;
The roller means that is connected with at least one described stand frame, with allow described at least one stand frame be independent of other described stand frame in the described substrate, along rolling with respect to the axial direction of roller tube, when supporting described vehicle; Described railroad allows described support moving in described substrate along single axis under the situation that lacks the guide piece that links to each other with described stand frame;
Support each support of dynamometer (46), each dynamometer joins on the corresponding roller tube to be used to the applying corresponding roller of loading, can simulate whereby with vehicle that described device contacts on road conditions; And
The wheel centralising device, it links to each other with each roller assembly, during the described roller bracket frame that is used for placing on by described substrate is tested described vehicle, the described vehicle of automatic centering on described roller.
2. assembly according to claim 1 is characterized in that: described roller means comprises when a linear bearing that is installed on each described support is arranged (30) and can be allowed described support with respect to the axis of described vehicle, on being supported on firm crust is rolled.
3. assembly according to claim 1 is characterized in that: further provide the roller means that is connected with each described stand frame be used for respect to described vehicle axis, laterally roll on being supported on firm crust.
4. assembly according to claim 1, it is characterized in that: the described centralising device of taking turns comprises a plurality of roller tubes (54), each roller tube comprises a right cylinder of elongation usually, this right cylinder has opposed end and zone line, described body has the thick middle thin shape in two ends, zone line has the narrow waist with respect to the opposed end of described body whereby, is used at the lumbar support wheel of vehicle.
5. assembly according to claim 1, it is characterized in that: described each roller tube comprises a common right cylinder, this body has relative end and has a step part that makes progress (67) at each described opposed end, and the diameter of described step part is greater than the diameter of the described roller of described part and then whereby.
6. assembly according to claim 5 is characterized in that: described step part comprises a flywheel.
7. assembly according to claim 1 is characterized in that: also comprise a rotation fabricated section (60) that is used at least one dynamometer is installed to corresponding described support, be used to limit rotatablely moving with respect to described support.
8. assembly according to claim 7 is characterized in that: described rotation fabricated section comprises first concentric elements (62) and second concentric elements (64), and they are connected with support relative to each other to rotate with described dynamometer respectively.
9. assembly according to claim 8 is characterized in that: described first element (62) comprises that a dish and described second concentric elements (64) comprise the dish engagement device.
10. assembly according to claim 9 is characterized in that: described dish engagement device comprises a journal bearing arrangement.
11. assembly according to claim 1, it is characterized in that: described dynamometer is connected with a controller (200), described controller receives the information of wheel velocity and moment of torsion from each described dynamometer, and has the treating apparatus (206) that is used for the speed discrepancy of comparison between described first and second dynamometers and be used to control the torque control device (208) of the moment of torsion that is applied by at least one described dynamometer equal with the rotational speed separately that makes described roller basically.
12. assembly according to claim 11, it is characterized in that: described controller (200) comprises whole power absorption calculation elements (207), whole absorbed powers that wherein will be in the middle of all dynamometers as the speed of vehicle mass, each roller and acceleration and with the function calculation of the correlation of the aerodynamic force of vehicle and friction loss and the loss within dynamometer.
13. assembly according to claim 11 is characterized in that: the control that described torque control device also allows described dynamometer with selectively use one separately in check on the roller tube equate or unequal rotational speed is selectively simulated straight line or crooked vehicle route.
14. assembly according to claim 13 is characterized in that: described each dynamometer assembly (24) comprises rotating speed and moment of torsion sniffer (204,74,202) and device for power absorption,
Be used for having a logical circuit (207) to be used for comparison and to measure any velocity contrast between described dynamometer and control at least one described dynamometer to respond described velocity contrast from the described control device (200) of described dynamometer reception rotating speed and torque information, described logical circuit controller is provided with device controlling the device for power absorption of described at least one dynamometer, thereby selectively realizes the simulation of straight line or crooked vehicle route.
15. one kind is used for the travel method of road conditions of simulating vehicle, comprises the following steps:
A) provide the first and second roller dynamometer assemblies (10), each assembly has moment of torsion and speed probe (74,202,204) and one and is used for from the controller (200) of each dynamometer assembly inbound pacing and torque information and the resistance that applied of control independently;
B) vehicle with at least two driving wheels is tested;
C) described at least two driving wheels are supported on the corresponding first and second roller dynamometer assemblies;
D) drive described at least two driving wheels with described thermometrically;
E) measure the speed and the moment of torsion of described at least two driving wheels independently; And
F) control at least one described first and second roller dynamometer assembly independently to control its rotating speed with described controller, it is characterized in that:
The first and second dynamometer assemblies are controlled to simulate selectively or straight line or crooked vehicle route.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2238624 CA2238624C (en) | 1997-05-21 | 1998-05-20 | Portable roller dynamometer and vehicle testing method |
| CA2,238,624 | 1998-05-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1301340A CN1301340A (en) | 2001-06-27 |
| CN1188685C true CN1188685C (en) | 2005-02-09 |
Family
ID=4162468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB998063029A Expired - Fee Related CN1188685C (en) | 1998-05-20 | 1999-05-19 | Portable roller dynamometer and vehicle testing method |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1080354A1 (en) |
| JP (1) | JP2003513227A (en) |
| CN (1) | CN1188685C (en) |
| AU (1) | AU3922599A (en) |
| BR (1) | BR9911030A (en) |
| HK (1) | HK1038258A1 (en) |
| MX (1) | MXPA00011230A (en) |
| WO (1) | WO1999060363A1 (en) |
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| CN100489480C (en) * | 2003-03-03 | 2009-05-20 | 西门子公司 | Method for operating rolling experiment table and rolling experiment table |
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| US6257054B1 (en) * | 1997-05-21 | 2001-07-10 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Natural Resources | Portable roller dynamometer and vehicle testing method |
| JP3457287B2 (en) * | 2001-03-15 | 2003-10-14 | 本田技研工業株式会社 | How to measure one-sided flow of a vehicle |
| US7409877B2 (en) | 2006-08-22 | 2008-08-12 | Red Rackhams Treasure Co., Ltd. | Dynamometer adapter for motorcycles |
| JP5482248B2 (en) * | 2010-02-01 | 2014-05-07 | シンフォニアテクノロジー株式会社 | Chassis dynamo device |
| WO2014006240A1 (en) * | 2012-07-05 | 2014-01-09 | Antonio Rodriguez Ledesma | Mobile load simulator |
| CN103217305B (en) * | 2013-03-26 | 2016-08-24 | 广州市耐动信息科技有限公司 | The test device of durability of tyre |
| CN104833527B (en) * | 2015-05-13 | 2019-01-22 | 纳恩博（天津）科技有限公司 | Single wheel dynamic balancing vehicle burn-in test limiting device and the test equipment for having it |
| CN106053096B (en) * | 2016-07-15 | 2018-07-24 | 天津铭志成科技有限责任公司 | Electric bicycle performance test platform |
| CN113049270B (en) * | 2021-03-24 | 2023-05-02 | 林武 | Chassis dynamometer module additionally mounted on inertial roller brake inspection bench |
| CN115294852A (en) * | 2022-08-19 | 2022-11-04 | 中国汽车技术研究中心有限公司 | Demonstration device for intelligent internet automobile technology propagation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4635472A (en) * | 1984-09-13 | 1987-01-13 | The Allen Group Inc. | Chassis dynamometer construction |
| US5193386A (en) * | 1990-09-24 | 1993-03-16 | Hamilton Test Systems, Inc. | Tapered roller dynamometer |
| US5375461A (en) * | 1991-06-24 | 1994-12-27 | Kabushiki Kaisha Meidensha | Control system for chassis dynamometer for simulating road test of automotive vehicle |
| US5445013A (en) * | 1993-08-30 | 1995-08-29 | Clayton Industries | Dynamometer for simulating the inertial and road load forces encountered by motor vehicles and method |
| US5844145A (en) * | 1996-03-01 | 1998-12-01 | Snap-On Technologies, Inc. | Chassis dynamometer employing laterally moving roller assemblies during alignment of vehicle |
-
1999
- 1999-05-19 BR BR9911030-0A patent/BR9911030A/en not_active Application Discontinuation
- 1999-05-19 AU AU39225/99A patent/AU3922599A/en not_active Abandoned
- 1999-05-19 CN CNB998063029A patent/CN1188685C/en not_active Expired - Fee Related
- 1999-05-19 MX MXPA00011230A patent/MXPA00011230A/en unknown
- 1999-05-19 EP EP99922000A patent/EP1080354A1/en not_active Withdrawn
- 1999-05-19 WO PCT/CA1999/000457 patent/WO1999060363A1/en not_active Application Discontinuation
- 1999-05-19 JP JP2000549928A patent/JP2003513227A/en active Pending
-
2001
- 2001-12-12 HK HK01108702A patent/HK1038258A1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100489480C (en) * | 2003-03-03 | 2009-05-20 | 西门子公司 | Method for operating rolling experiment table and rolling experiment table |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1301340A (en) | 2001-06-27 |
| EP1080354A1 (en) | 2001-03-07 |
| HK1038258A1 (en) | 2002-03-08 |
| MXPA00011230A (en) | 2003-04-22 |
| BR9911030A (en) | 2001-10-02 |
| WO1999060363A1 (en) | 1999-11-25 |
| AU3922599A (en) | 1999-12-06 |
| JP2003513227A (en) | 2003-04-08 |
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