JP2017219524A - Posture control device for test stand - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control a test stand for use in a running test of a vehicle or the like to a required three-dimensional inclined posture by setting and inputting three variables including the yawing angle, pitch angle and rolling angle of the vehicle or the like.SOLUTION: A posture control device for test stand is equipped with: a test stand 12 that can be mounted with and support a vehicle or the like and keep it in a three-dimensional inclined posture; four universal joints 25 as supporting means for supporting the stand in a suspended state; four supporting columns 21 each having a screw shaft 22 and an elevating table 24 as elevating means to liftably support the test stand via the joints; a servo motor 23 with a numerical positioning function as driving means for controlling the up-and-down driving of these elevating means; and control means for controlling the driving of each of the driving means. The control means calculates the up-and-down driven extent of each elevating means by inputting such setting of the test stand as to take a desired three-dimensional inclined posture, and controls the driving of each of the driving means to perform required inclined posture control of the test stand.SELECTED DRAWING: Figure 1

Description

  The present invention is a test table suitable for use in, for example, a traveling test apparatus that performs measurement and inspection of various characteristics corresponding to various vehicle postures on various inclined road surfaces, and particularly in a three-dimensional manner with a simple and robust structure. The present invention relates to a posture control device that can perform posture control so as to obtain a tilt angle posture.

  Conventionally, as this type of running test apparatus, for example, the one shown in Patent Document 1 is known. Briefly explaining this, this conventional apparatus supports one side of the base plate so as to be freely tiltable via a hinge, provides a hydraulic piston on the other side, and drives the base plate so that the base plate has a predetermined angle. Can be tilted.

  In addition, a turntable is rotatably provided at the center of the base plate. A vehicle body is placed on the turntable, and the turntable is turned to an appropriate angle on the base plate. By moving it, the direction of the vehicle body is changed to a direction different from the inclination direction of the base plate so that a running test can be performed at a predetermined inclination angle based on the gradient angle in the front-rear direction of the vehicle body and the turning angle in the left-right direction. Was composed.

  Japanese Patent No. 3419843

  However, in the conventional apparatus having the above-described structure, in order to obtain a three-dimensional tilt posture, a vehicle or the like is mounted and a turntable for rotating is provided on the base plate, and the base plate is tilted by a hydraulic cylinder. In addition to the complexity of the structure of the entire apparatus and high cost, there are many movable parts and lack of operational reliability.

  Further, in the vehicle running test apparatus as described above, the slope on the road surface during the running test is not limited to having a predetermined inclination angle in each of the vehicle front-rear direction and the left-right direction. In other words, there is actually an inclined road surface with an inclination angle obtained by combining them in three dimensions. Such a three-dimensional tilting operation can be performed in the two directions described above. Such conventional devices are difficult to cope with, and it is desired to take any countermeasure against these problems.

  The present invention has been made in view of such circumstances, and a test stand for performing a vehicle running test or the like is used in three variables of a yawing angle, a pitch angle, and a rolling angle of a vehicle (or in the case of a vehicle slope simulation). An object of the present invention is to obtain a posture control device capable of controlling a desired three-dimensional tilt posture by setting input of two variables (slope gradient angle and turning angle).

  In addition, the present invention is capable of obtaining a tilt posture with the tilt angle in the three-dimensional arbitrary direction described above, and to obtain a test table that can be tilted with a simple and robust structure as much as possible. It is an object of the present invention to obtain an attitude control device for a test bench that can be used and has no problem in terms of operational reliability and safety.

  In order to meet such an object, the posture control device for a test stand according to the present invention includes a test stand that mounts and supports an object to be mounted and can be tilted in a three-dimensional inclined posture, and at least three that supports the test stand by hanging. A supporting means for the book, at least three lifting means for supporting the test table so as to be movable up and down via the supporting means, at least three supporting columns for supporting the lifting means so as to be movable up and down, At least three drive means for driving each of them up and down, and a control means for driving and controlling each of these drive means, the control means set an inclination angle so as to give a desired inclination posture to the test table. By doing so, it is configured to calculate a driving amount for raising and lowering each of the raising and lowering means, to drive and control each of the driving means, and to perform a required posture control of the test table.

  The test bench attitude control apparatus according to the present invention is the test bench attitude control apparatus according to claim 1, wherein the tilt angle is set by the control means as a yaw angle, a pitching angle, and a rolling angle of the test bench. It is configured to set three variables.

  Further, in the test bench attitude control apparatus according to claim 1, in the test bench attitude control device according to the first aspect, when the slope simulation is performed, the slope angle setting by the control means is the slope angle of the slope. And a turning angle are set.

  In addition, the test bench attitude control device according to the present invention is the test bench attitude control device according to any one of claims 1 to 3, wherein the support means suspends and supports the test bench. It is characterized by comprising a hanging tool such as a universal joint, wire rope, or chain.

  The test bench attitude control device according to the present invention is the test bench attitude control device according to any one of claims 1 to 4, wherein the elevating means is erected along the support column. It is composed of a supported screw shaft and a lifting platform that moves up and down along the screw shaft by the rotation of the screw shaft, and the test table is suspended and supported by the lifting platform via the support means. Features.

  According to another aspect of the present invention, there is provided a test bench attitude control apparatus according to any one of claims 1 to 5, wherein the driving means is a servo motor with a numerical positioning function. It is characterized by that.

  In addition, the test bench attitude control device according to the present invention is the test bench attitude control device according to any one of claims 1 to 6, wherein the sensor means for detecting a lift position by the lift means; And braking means for positioning and holding at a predetermined lift position.

  The test bench attitude control apparatus according to the present invention is the test bench attitude control device according to any one of claims 1 to 7, wherein the test bench attitude control device is positioned and held at a predetermined elevation position by the elevation means. Locking means for locking and fixing the test table in a state is provided.

  As described above, according to the posture control apparatus for a test stand according to the present invention, the test stand is suspended and supported via a support means such as a universal joint, a wire rope, etc., and these are lifted and lowered by a lift base and a screw shaft. It is configured so that it can be moved up and down to a required lift position (height position) by means, and the drive means for driving them is configured to be driven and controlled in a required state by the control means. Regardless, there are various excellent effects listed below.

  That is, the control unit inputs and inputs three variables, that is, the yawing angle (yaw angle), the pitching angle (pitch angle), and the rolling angle (roll angle) of the test table as an inclination posture to be given to the mounted object such as a vehicle. Thus, the vertical drive amount of each lift means is calculated and the drive means is controlled to drive up and down, and the test table is configured to change the respective inclination angles to the required posture in three dimensions. Therefore, it is possible to change the test stand to the required tilting posture by a very simple operation, and the screw shaft and the lifting stand are screwed together by the feed screw, and a numerical control positioning function is provided. This servo motor has advantages such as having a robust structure and being able to stably maintain its inclined posture.

  In addition, since the four corners of the test bench are suspended and supported by a lifting means for lifting and lowering the same, the whole has a robust structure, for example, from 1 t to several t. Even a traveling test machine equipped with such vehicles can be constructed safely and reliably. Here, although the weight of the entire device reaches 30t or more, since it is configured to be supported by four support columns, the entire device is robust and can stably obtain a three-dimensional inclined posture in terms of operation. It has been confirmed in actual equipment that a test bench device can be obtained.

  Furthermore, in the above-described configuration, only the four corners of the test bench are suspended and supported, so that an inclined road having an inclination angle ranging from 30 to 45 degrees can be easily configured. The effect is great.

  Instead of the above-described setting input with the three variables of the yaw angle, the pitch angle, and the roll angle, two variables of the vehicle slope angle and the turning angle may be set and input. In particular, when performing a vehicle running test in a hill simulation, etc., by setting and inputting two variables, the slope angle and the turning angle of the vehicle, the three-dimensional slope condition of the slope can be It can be reproduced with an inclined posture.

  1 shows an embodiment of a posture control device for a test bench according to the present invention, and is a schematic side view of the entire device.   It is a schematic plan view of the attitude | position control apparatus of the test stand of FIG.   It is a schematic front view of the attitude | position control apparatus of the test stand of FIG.   It is a schematic perspective view which shows the test stand in FIG.   It is explanatory drawing for demonstrating slope gradient angle (theta) and turning angle (psi) in slope simulation in the attitude | position control apparatus of the test stand which concerns on this invention.

  1 to 4 show an embodiment of an attitude control device for a test bench according to the present invention. In this embodiment, a case will be described in which a running test or the like on an inclined road surface is performed on a vehicle C such as a four-wheeled vehicle as a load.

  In these drawings, an attitude control device for a test table, indicated as a whole by reference numeral 10, includes a test table 12 that can mount and support a vehicle C as a mounted object and can be tilted in a three-dimensional inclined attitude, and four corners of the test table 12. Four support joints 21 having four universal joints 25 as support means for supporting the suspension of the test piece, and lift means for supporting the four corners of the test table 12 through the universal joints 25 so as to be lifted and lowered. Servo motors 23 having a numerical positioning function as driving means for driving the elevating means to move up and down, and control means (not shown) for driving and controlling these servo motors 23 are provided.

  The elevating means comprises a screw shaft 22 erected and supported along four support pillars, and an elevating table 24 that moves up and down along the screw shaft 22 by the rotation of the screw shaft 22 and is a support means. It is connected to the four corners of the test table 12 via the universal joint 25, and is configured to support the test table 12 in a suspended state.

  As the above-described lifting means or driving means, sensor means for detecting the lifting position of each lifting platform 24, braking means for positioning and holding the lifting position of the lifting platform 24 at a predetermined position, and locking means for locking at the positioning position Etc. may be provided at appropriate positions.

  Further, the control means sets the inclination angle setting by using three variables of the yawing angle, the pitching angle, and the rolling angle of the test bench 12, or two variables of the slope gradient angle θ and the turning angle ψ as shown in FIG. Configured to enter settings. Here, in this embodiment, a case where the yawing angle, the pitching angle, and the rolling angle are input and set will be described.

  Then, the control means performs the angle setting such as the yawing angle, the pitching angle, the rolling angle, etc. so that the desired tilting posture is given to the test bench 12, as described above. Ascending / descending drive amounts in the elevating means 22 and 24 are calculated so as to be in the posture, and the respective servo motors 23 are driven and controlled, thereby changing the height positions of the four corners of the test table 12, It is configured to perform attitude control.

  In the figure, reference numeral 13 denotes a pair of rollers on which the wheels of the vehicle C are mounted for a running test, and reference numeral 14 denotes a dynamo motor, which is configured so that the running state of the vehicle C can be tested. Of course, the roller 13 and the dynamo motor 14 are merely examples, and it is needless to say that the roller 13 and the dynamo motor 14 can be appropriately changed and modified according to the use of this type of the test bench apparatus 10.

  According to the posture control apparatus 10 for the test table having the above-described configuration, the four corners of the test table 12 are supported by being suspended through the support means such as the universal joint 25 and the like, and the lifting means using the lifting table 24 and the screw shaft 23 are supported. Because the servo motor that drives them can be driven and controlled by simple control means, it has a very simple structure compared to the conventional complicated structure. Regardless of this, the three-dimensional attitude control of the test table 12 can be performed appropriately and reliably.

  That is, the control unit is inputted with angle settings such as a yawing angle, a pitching angle, and a rolling angle to a desired tilting posture, and calculates a lift driving amount on the screw shaft 22 of each lifting platform 24. Then, by driving and controlling the servo motors 23 based on the calculation results, the tilt angle of the test table 12 can be changed to a required posture in three dimensions.

  Further, in the test table apparatus 10 described above, the test table 12 can be changed to a required inclined posture by a very simple operation, and the screw shaft 22 and the lifting table 24 are screwed by the feed screw. The tilted posture can be stably maintained by the servo motor 23 with the coupling and numerical system positioning function.

  In addition, the detection of the raising / lowering position at the time of the raising / lowering operation | movement mentioned above should just be acquired by attaching sensor means, such as an encoder, in an appropriate position. Most simply, the servo motor 23 may be provided with sensor means.

  Further, as the servo motor 23 described above, it is preferable to use a type that can brake the operation at a predetermined lift position and can be positioned and fixed at a required positioning position. Of course, the present invention is not limited to this, and a braking means that can be locked at a required positioning position by applying a braking force to the lifting operation may be provided separately.

  In addition, the posture control device 10 having the above-described configuration supports the four corners of the test table 12 in a suspended manner, and allows them to be easily moved up and down by lifting means using the lifting table 24 and the screw shaft 22. Can be constructed in a robust manner, and for example, even a traveling test machine equipped with a vehicle ranging from 1 t to several t can be constructed safely and reliably.

  Here, although the total weight of the apparatus 10 is 30 t or more depending on the size, the entire apparatus is robust and operational because it is configured to be easily supported by the four support columns 21. A three-dimensional inclined posture can be obtained stably. In particular, in this type of apparatus 10, for example, an inclined road having an inclination angle ranging from 30 degrees to 45 degrees at the maximum can be easily configured, and the advantage is great.

FIG. 5 illustrates a case where the angle is set in the slope simulation.
That is, this figure shows the case where the test table 12 is at a predetermined angle θ with respect to the horizontal plane. A vehicle C drawn at a predetermined interval in the circumferential direction on the test table 12 shows the relationship between the inclination posture on the test table 12 and the vehicle, and the inclination of each road surface when the turning angle is ψ. Represents a state.

  That is, FIG. 5 shows, for example, a three-dimensional combined inclination in which the turning angle ψ of the vehicle C is turning from 0 ° to 360 ° with respect to an arbitrary inclination angle θ of the test table 12 as the inclination posture of the test table 12. It shows that the posture can be obtained. Then, by setting and inputting the two variables of the gradient angle θ and the turning angle ψ in place of the above-described three variables, the support position for supporting the test table 12 by hanging up and down is increased in the same manner as in the above-described embodiment. By moving up and down, a required three-dimensional tilt posture can be easily obtained.

  Needless to say, the present invention is not limited to the structure described in the above-described embodiment, and the shape, structure, and the like of each part constituting the attitude control device 10 of the test bench can be appropriately modified and changed. For example, in the above-described embodiment, the four corners of the test table 12 are used to support the suspension by the support means (25). However, the present invention is not limited to this, and at least three points on the test table 12 are supported by suspension. It is good also as a structure to do. In short, what is necessary is just to comprise so that the test stand 12 may be raised / lowered by suspending and supporting three or more places of the test stand 12.

  Moreover, although universal joint 25 was illustrated as a support means in embodiment mentioned above, not only this but hanging tools, such as a wire rope and a chain, may be sufficient, and various modifications can be considered.

In the above-described embodiment, the servo motor 23 with a numerical positioning function is exemplified as the driving means. However, the present invention is not limited to this, and appropriate modifications can be considered.
Furthermore, in the above-described embodiment, the test apparatus that mounts the vehicle C and performs a running test or the like is exemplified, but it goes without saying that the present invention is not limited to this.

DESCRIPTION OF SYMBOLS 10 Test stand attitude control device 12 Test stand 13 Roller 14 Chassis dynamo motor 21 Support column 22 Screw shaft (lifting means)
23 Servo motor (drive means)
24 Lifting platform (lifting means)
25 Universal joint (support means)
C Load (vehicle)

Claims (8)

A test stand that supports and supports the object to be mounted and can be tilted in a three-dimensional tilt posture;
At least three support means for hanging and supporting the test table;
At least three elevating means for supporting the test table so as to be movable up and down via the support means;
At least three support columns for supporting the lifting means so as to be movable up and down;
At least three driving means for raising and lowering each of the raising and lowering means;
Control means for driving and controlling each of these driving means,
This control means calculates the driving amount of the lift by each of the lifting means by performing the tilt angle setting so as to give the desired tilting posture to the test table, and controls the driving of each driving means, An attitude control device for a test table, which is configured to perform required attitude control of the test table. In the posture control apparatus of the test bench according to claim 1,
As the tilt angle setting by the control means, the test table attitude control device is configured to set three variables of a yaw angle, a pitching angle, and a rolling angle of the test table. In the posture control apparatus of the test bench according to claim 1,
In the case of slope simulation, the tilt angle setting by the control means is configured to set two variables, the slope angle of the slope and the turning angle. The attitude control device for a test bench according to any one of claims 1 to 3,
The posture control device for a test table, wherein the support means is constituted by a suspension tool such as a universal joint, a wire rope, or a chain that supports the test table in a suspended manner. The attitude control device for a test stand according to any one of claims 1 to 4,
The elevating means includes a screw shaft that is erected and supported along the support column, and a lifting platform that moves up and down along the screw shaft by the rotation of the screw shaft.
An attitude control device for a test table, wherein the test table is suspended and supported by the lifting table via the support means. The attitude control device for a test stand according to any one of claims 1 to 5,
The driving means is a servo motor with a numerical positioning function. The attitude control device for a test bench according to any one of claims 1 to 6,
An attitude control device for a test bench, comprising: sensor means for detecting a raising / lowering position by the raising / lowering means; and braking means for positioning and holding at a predetermined raising / lowering position. The attitude control device for a test stand according to any one of claims 1 to 7,
An apparatus for controlling the attitude of a test table, comprising: lock means for locking and fixing the test table in a state of being positioned and held at a predetermined lift position by the lifting device.

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