JP5203143B2 - Vehicle test system - Google Patents

Description

  The present invention relates to a vehicle test system.

Vehicles such as automobiles are subjected to performance tests under various environments in an environmental test room equipped with an air conditioner and / or an atmospheric pressure regulator. This is necessary in order to check the performance and operation of the vehicle in various usage situations such as low-temperature environments and high-altitude environments, and to comply with the regulations of each country, with the goal of exporting vehicles overseas. . Also, in a vehicle having an internal combustion engine, evaporative gas is generated from other than the exhaust stack, for example, by blow-by gas leaking from the combustion chamber of the internal combustion engine to the crankcase, or by evaporating fuel from the fuel supply system to the internal combustion engine, for example. And there are laws that regulate it. Therefore, a vaporized gas measurement test in which a vehicle is accommodated in a sealed measurement chamber (Sealed Housing for Evaporative Determination: hereinafter referred to as SHED) for collecting the vaporized gas evaporated from the vehicle, and the vaporized gas such as hydrocarbon is measured. (For example, refer to Patent Document 1).
JP 2000-292315 A

  By the way, as a part of the performance test in the environmental test room, there is a case where a transpiration gas measurement test in the SHED is performed after driving the vehicle under a predetermined test condition. The performance test in the environmental test room and the transpiration gas measurement test in the SHED There is also a need to move the vehicle without taking time. Thus, it is conceivable to install the SHED in the environmental test chamber in order to efficiently perform the performance test in the environmental test chamber and the transpiration gas measurement test in the SHED. However, the transpiration gas measuring device provided in the SHED may break down when placed in a low temperature environment. For this reason, when the SHED is installed in the environmental test chamber, there is a possibility that the vehicle test in a low temperature environment cannot be performed in the environmental test chamber.

  On the other hand, it is also conceivable that the SHED is placed on a carriage so that the SHED can be taken in and out of the environmental test room. However, if the carriage rattles when moving the SHED, the SHED may be distorted due to vibration, and there is a concern that the airtightness of the SHED may be reduced.

  The present invention has been made in order to solve the above-described problems, and the object thereof is a vehicle test system capable of efficiently performing each vehicle test in an environmental test chamber and a sealed measurement chamber without causing problems. Is to provide.

  In the following, each means suitable for solving the above-described object will be described in terms of items. In addition, the effect etc. peculiar to the means to respond | correspond as needed are added.

Means 1. At least an environmental test room that can set an environment for performing a performance test of a vehicle in an environment in which atmospheric pressure is adjusted other than atmospheric pressure, and a sealed measurement room in which a transpiration gas measurement test for measuring transpiration gas transpiration from the vehicle is provided. In the vehicle test system,
The environmental test chamber includes a first region where a vehicle subject to the performance test is operated under predetermined test conditions, and a second region adjacent to the first region and capable of accommodating the sealed measurement chamber. And a first air conditioner capable of air-conditioning the first area, a second air conditioner capable of air-conditioning the sealed measurement chamber, and adjusting the atmospheric pressure in the first area and the second area. An atmospheric pressure adjusting device, and configured such that a vehicle can travel between the sealed measurement chamber installed in the second region and the first region,
The sealed measurement chamber includes a transpiration gas measurement device that measures transpiration gas transpiration from a vehicle housed in the sealed measurement chamber, and an air conditioning opening that communicates with the second air conditioning device via a detachable duct. And is placed on a cargo bed having a spout from which compressed air is blown out, and is configured to be able to enter and exit the environmental test chamber,
A vehicle test system, wherein compressed air is blown out from the jet port, whereby the compressed air acts on the floor surface, and the loading platform on which the sealed measurement chamber is placed is separated from the floor surface.

  According to the means 1, since the sealed measurement chamber can be installed in the environmental test chamber, the vehicle entrance of the environmental test chamber is opened when the vehicle is moved from one of the environmental test chamber and the sealed measurement chamber to the other. Do not need to take the vehicle out of the room. For example, when performing a transpiration gas measurement test for a vehicle that supplies and discharges engine intake and exhaust gas, you can create test conditions such as recreating the operating conditions of the vehicle in a closed measurement chamber that collects the transpiration gas evacuated from the vehicle. There are some cases (such as intense mode operation). In this case, after preparing the test conditions on the environmental test room side, the vehicle is moved to the sealed measurement room, but when performing a transpiration gas measurement test at the same temperature and pressure as the environmental test room in the sealed measurement room, in particular, When conducting a transpiration gas measurement test under conditions of atmospheric pressure other than normal pressure, introducing the vehicle into the sealed measurement chamber in the environmental test chamber is very efficient in maintaining the pressure and the like. Therefore, each vehicle test in the environmental test chamber and the sealed measurement chamber can be performed accurately and efficiently. Further, when a performance test is performed in a low temperature environment in the environmental test room, the sealed measurement room can be left outside the environmental test room. Therefore, it is possible to prevent a situation in which the transpiration gas measuring device breaks down due to being placed in a low temperature environment.

  Further, the sealed measurement chamber is placed on a cargo bed provided with a jet port through which compressed air is blown out. For this reason, buoyancy is obtained by blowing compressed air from the jet outlet during the movement of the sealed measurement chamber, the friction coefficient of the bottom surface of the sealed measurement chamber (loading platform) in the horizontal direction is reduced to the limit, It can be easily moved (in and out). Furthermore, since the loading platform is separated from the floor surface, rattling (vibration) during movement of the sealed measurement chamber can be suppressed. Therefore, it is possible to prevent a situation in which the hermetic measurement chamber is distorted due to vibration and the airtightness is lowered.

  In addition, since it is necessary to ensure airtightness also as an environmental test room, it is desirable that the number of carry-in ports into which vehicles can be carried is one. In the first region, various facilities used for vehicle tests performed in the first region are installed. For this reason, it is desirable that the second region in which the sealed measurement chamber is accommodated is disposed between the first region and the carry-in port so that the various facilities do not hinder the movement of the sealed measurement chamber. Furthermore, when the second area is disposed between the first area and the carry-in entrance, a route for entering the vehicle into the first area when the sealed measurement room is permanently installed in the environmental test room. Is obstructed by the sealed measurement chamber. For this reason, in order to get the vehicle into the first region, it is necessary to enlarge the environmental test chamber or to provide two openings for carrying in the vehicle to the sealed measurement chamber. However, in this case, the air conditioning efficiency deteriorates, the air pressure setting in a large space becomes difficult due to the ability of leaking air and suction blower, the air pressure setting takes a long time, and the airtightness of the sealed measurement room is There is a risk of deteriorating sex. On the other hand, such a problem can be eliminated by configuring the sealed measurement chamber so that it can be taken into and out of the environmental test chamber as in the above-described means 1.

Mean 2. The environmental test room includes a carry-in port capable of carrying a vehicle and the sealed measurement chamber, and a door body that opens and closes the carry-in port and can seal the carry-in port when closed.
Among the recesses formed for sliding the door body on the floor surface of the carry-in entrance, there is provided a lid member that closes at least a portion that can face the ejection port when the sealed measurement chamber is moved. The vehicle test system according to claim 1.

  Since the floor surface is divided by the recess at the carry-in port (there is no floor surface), buoyancy cannot be obtained even if compressed air is blown from the jet port, and the sealed measurement chamber can be moved smoothly. You might not be able to do it. On the other hand, according to the present means 2, a lid member is provided that closes at least a portion of the recess that can face the ejection port when the sealed measurement chamber is moved. For this reason, even if a jet nozzle is located above the recessed part (carry-in port), compressed air blown out from a jet nozzle is made to act on a lid member (an air layer is formed between a jet outlet peripheral part and a lid member) Buoyancy can be obtained. Therefore, the above-described problems can be eliminated, and the effect of being able to smoothly move the sealed measurement chamber without rattling can be achieved more reliably.

Means 3. The loading platform includes a guide roller disposed inside a groove-shaped portion formed along the loading / unloading direction of the sealed measurement chamber,
The guide roller is attached to the cargo bed via a coupling member that can be vertically expanded and contracted, and when the cargo bed is raised by blowing compressed air from the jet outlet, the coupling member follows and extends. The vehicle test system according to claim 1 or 2, wherein the contact state between the guide roller and the groove-like portion is maintained.

  According to the means 3, the guide roller disposed inside the groove-shaped portion with respect to the loading platform is provided. For this reason, the movement of the sealed measurement chamber is guided, and the movement of the sealed measurement chamber can be performed more smoothly. In addition, since the guide roller is attached to the loading platform via a connecting member that can be expanded and contracted vertically, when the loading platform is raised by blowing compressed air from the ejection port, the guide roller comes out of the groove-shaped portion. It is possible to reliably prevent such a situation. Furthermore, even if a slight step is formed in the groove-shaped portion (or a foreign object enters), when the guide roller rides on the step, the connecting member can expand and contract to absorb the step. Therefore, the effect of suppressing rattling (vibration) during the movement of the sealed measurement chamber is reliably achieved.

Means 4. The environmental test room includes a carry-in port capable of carrying a vehicle and the sealed measurement chamber, and a door body that opens and closes the carry-in port and can seal the carry-in port when closed.
A recess for sliding the door body is formed on the floor surface of the carry-in entrance,
The groove-shaped portion is configured to extend from the floor surface in the environmental test chamber to the floor surface outside the environmental test chamber across the recess.
The means 3 according to claim 3, further comprising a bridge that connects the groove-shaped portion formed on the floor surface in the environmental test chamber and the groove-shaped portion formed on the floor surface outside the environmental test chamber. Vehicle test system.

  At the carry-in entrance, since the groove-shaped portion is divided by the concave portion, the guide roller cannot be guided, and the hermetic measurement chamber may not be smoothly moved. On the other hand, according to the present means 4, a bridge for connecting the groove-shaped portion formed on the floor surface in the environmental test chamber and the groove-shaped portion formed on the floor surface outside the environmental test chamber to the concave portion. Is provided. For this reason, even if a guide roller is located in the recessed part (carry-in port) which this requires, a guide roller can be guided with a bridge. Therefore, the effect of smoothly moving the sealed measurement chamber is more reliably achieved.

Means 5. The floor surface of the second region where the sealed measurement chamber placed on the cargo bed is installed is configured to be vertically displaceable, and includes a lifting device that lifts and lowers the floor surface of the second region,
When carrying in and out of the sealed measurement chamber, the floor surface of the second region and the floor surface of the environmental test chamber are flush with each other,
When moving the vehicle between the sealed measurement chamber installed in the second region and the first region, the floor surface of the sealed measurement chamber installed in the second region and the environment 5. The vehicle test system according to any one of means 1 to 4, wherein the test room is flush with the floor of the test room.

  According to the means 5, when the sealed measurement chamber is carried into the second region, the floor surface of the second region and the floor surface of the environmental test chamber are flush with each other. For this reason, the sealed measurement chamber can be smoothly carried into the second region as described above. In addition, when the vehicle moves between the sealed measurement room installed in the second area and the first area, the floor surface of the sealed measurement room installed in the second area and the floor of the environmental test room. The surface is flush. For this reason, the vehicle can be smoothly taken in and out of the sealed measurement chamber. Furthermore, for example, when a vehicle is taken in and out of the sealed measurement chamber, a separate slope is installed to eliminate the step, and the slope is removed when the vehicle is taken in and out of the environmental test chamber. There is no need to perform this, and workability can be improved. In addition, even if the slope is eliminated using the slope, if the slope of the slope is steep, the sealed measurement chamber will vibrate when the vehicle is moved in and out of the sealed measurement chamber, resulting in sealed measurement. The chamber may be distorted. In this respect, according to the present means, the floor surface of the environmental test chamber and the floor surface of the sealed measurement chamber can be flush with each other, and thus such inconvenience can be avoided.

  Hereinafter, an embodiment of a vehicle test system will be described with reference to the drawings. FIG. 1 is a schematic cross-sectional view showing a schematic configuration of a vehicle test system. FIG. 2 is a schematic plan view showing a schematic configuration of the vehicle test system.

  As shown in FIG. 1, the vehicle test system 1 includes an environment test chamber 2 that performs a performance test of the vehicle M under a predetermined environment, and a measurement test of a transpiration gas such as hydrocarbon (HC) transpiration from the vehicle M. And a closed measurement chamber (SHED3).

  The environmental test chamber 2 includes a first area (first area 4) where the chassis dynamometer 7 is installed, a second area (second area 5) that can accommodate the SHED 3, and an environmental test room 2 (first area). A first air conditioner 8 capable of air-conditioning the area 4) and a second air conditioner 9 capable of air-conditioning the SHED 3 installed in the second area 5 are provided. The environmental test chamber 2 has a structure that can be hermetically sealed in a capsule shape by an outer casing and a door body 12 to be described later, and is also provided with an air pressure adjusting device using a supply / exhaust system (not shown).

  As shown in FIGS. 1 and 2, the environmental test chamber 2 includes a carry-in port 11 into which the vehicle M and the SHED 3 can be loaded, a door body 12 that opens and closes the carry-in port 11, and a door that can accommodate the door body 12. And an accommodating portion 13. The door body 12 is configured to be movable up and down, and is housed in a door housing portion 13 formed on the floor of the environmental test chamber 2 when the carry-in port 11 is open. When the door body 12 rises and closes the environmental test chamber 2, the door body 12 can be sealed on the four sides by the upper three-side frame and the lower frame on the side surface of the door accommodating portion 13. As shown in FIG. 2, the vehicle test system 1 is provided with a front chamber 10 adjacent to the environmental test chamber 2, so that an operator can open the environmental test chamber 2 without opening the door body 12. It is possible to enter the environmental test chamber 2 from the outside through the front chamber 10.

  The first area 4 is provided with a wind tunnel device 15 capable of supplying an air flow or the like corresponding to an aerodynamic load (running wind) that should be received during running to the vehicle M that is running on the chassis dynamometer 7 in a simulated manner. It has been. The wind tunnel device 15 includes air blowing means for generating an air flow, air conditioning means for adjusting the temperature and humidity of air blown to the vehicle M, and the like. Further, in the first area 4, various measuring instruments for measuring various performances of the vehicle M are installed.

  The second area 5 is provided between the first area 4 and the carry-in port 11, and the vehicle M temporarily retracts the SHED 3 from the environmental test chamber 2 and then passes through the second area 5 from the carry-in port 11. It will be carried into the first area 4. In addition, as shown in FIG. 2, two groove-like portions 17 extending in parallel with each other are formed on the floor surface of the second area 5, and the groove-like portions 17 extend beyond the carry-in entrance 11. It extends to the outside of the environmental test chamber 2. The groove portion 17 of the present embodiment has a V-shaped bottom surface and side surfaces extending upward from both side portions of the bottom surface (see FIG. 3B). Further, as shown in FIG. 1, the floor surface of the second area 5 (the portion where the SHED 3 is installed) is configured to be vertically movable, and the environmental test chamber 2 has a floor surface of the second area 5. An elevating device 19 for elevating is provided. In the first area 4 and the second area 5 (the frontage of the environmental test chamber 2), there is no space for changing the direction of the vehicle M or installing two vehicles M side by side. For this reason, the vehicle M carried into the environmental test chamber 2 moves in the environmental test chamber 2 basically going straight or retreating straight.

  As shown in FIG. 1, the SHED 3 communicates with the second air conditioner 9 via a housing 21 that can accommodate the vehicle M, a transpiration gas measurement device (not shown) that measures transpiration gas, and a detachable duct 22. The air conditioning opening 23 and the SHED internal pressure adjusting device (not shown) capable of adjusting the atmospheric pressure in the housing 21 are provided. The housing 21 includes a loading opening 25 into which the vehicle M can be loaded on the first area 4 side, and a sealing door 26 that opens and closes the loading opening 25. If the loading opening 25 of the SHED 3 carried into the environmental test chamber 2 is opened, the atmospheric pressure in the housing 21 can be adjusted by the atmospheric pressure adjustment device in the environmental test chamber 2. It is not necessary to use a SHED internal pressure adjusting device (it can be omitted).

  Now, the SHED 3 is placed on a loading platform 31 including an air caster 32 shown in FIG. 2 and a guide member 33 installed inside the groove-shaped portion 17, and can be taken in and out of the environmental test chamber 2. It is configured. 2, illustration of SHED3 mounted in the loading platform 31 is abbreviate | omitted for convenience. In the present embodiment, the air casters 32 are provided at the four corners and the intermediate position in the longitudinal direction with respect to the peripheral surface of the lower surface of the cargo bed 31 (total of six locations). In addition, the guide members 33 are provided in the vicinity of the air casters 32 provided at the four corners of the loading platform 31 (four places in total). In the present embodiment, the air caster 32 is located outside the pair of groove portions 17 (on the side of the side walls of the environmental test chamber 2 from the groove portions 17). Note that the air caster 32 may be positioned between the pair of groove portions 17 (depending on the load resistance).

  As shown in FIG. 3A, the air caster 32 is attached to a main body 41 having a jet outlet 42 through which compressed air is blown, and a lower surface of the main body 41, and the compressed air blown out from the jet outlet 42 is An annular torus bag 43 to be guided and a grounding pad 44 provided on the lower surface of the main body 41 on the inner peripheral side of the torus bag 43 are provided. The torus bag 43 is formed with an outlet 47 through which the compressed air guided into the torus bag 43 flows out on the inner peripheral side.

  The air caster 32 is connected to a compressed air supply device (not shown) via an air controller and a hose when the SHED 3 moves. Then, the compressed air is supplied from the compressed air supply device to the air caster 32, whereby the compressed air is blown out from the ejection port 42. As a result, the torus bag 43 expands and comes into contact with the floor surface, and the pressure in the space surrounded by the torus bag 43 increases by the compressed air flowing out from the outlet 47. After that, when the pressure in the space surrounded by the torus bag 43 becomes larger than the load such as SHED3, air leaks between the torus bag 43 and the floor surface (the air layer is formed between the torus bag 43 and the floor surface). Once formed, the loading platform 31 is separated (floated) from the floor surface. When the compressed air is not supplied to the air casters 32, the torus bag 43 is deflated and the ground pads 44 of the air casters 32 come into contact with the floor surface, and the loading platform 31 is supported by the ground pads 44.

  As shown in FIG. 3B, the guide member 33 includes a fixed portion 51 fixed to the loading platform 31, a movable portion 52 provided so as to be relatively displaceable with respect to the fixed portion 51, and a movable portion 52. A spring 53 that biases downward and a guide roller 54 provided at the lower end of the movable portion 52 are provided. And the movement of SHED3 is guided by installing the loading platform 31 so that each guide roller 54 is located inside the groove-shaped portion 17. Further, when the compressed air is blown out from the outlet 42 of the air caster 32 and the loading platform 31 is lifted, the movable portion 52 protrudes downward from the fixed portion 51 by the urging force of the spring 53 by the amount of floating. Thereby, the state in which the guide roller 54 is in contact with the bottom surface of the groove-like portion 17 is maintained. The spring 53 may be omitted and the movable part 52 may be displaced downward by its own weight. In the present embodiment, the fixed portion 51 and the movable portion 52 constitute a connecting member.

  As shown in FIG. 4, in this embodiment, when the carry-in port 11 is opened, the upper end portion of the door body 12 accommodated in the door accommodating portion 13 is below the bottom surface of the groove-shaped portion 17. It is the composition which is located. Further, in the present embodiment, when the carry-in port 11 is opened and the SHED 3 is taken in and out, the lid member 61 is formed with respect to the door housing part 13 (upper opening formed inside the upper edge of the door housing part 13). And the bridge 71 shown in FIG.5 (b) is installed. In FIG. 4, the bridge 71 is not shown for convenience. Moreover, in this embodiment, the door accommodating part 13 is equivalent to a recessed part.

  As shown in FIG. 5A, the lid member 61 includes a pair of side wall parts 63 facing each other, a connection part 64 that connects the upper edge parts of the side wall part 63, and an extension of the connection part 64. Each of the side wall portions 63 includes an extending portion 65 that extends laterally from an upper edge portion, and a support piece portion 66 that protrudes toward the side approaching each other from the middle position in the vertical direction of the side wall portions 63.

  The distance between the side wall portions 63 is substantially the same as the thickness of the door body 12, and the support piece portion 66 is supported on the upper surface of the door body 12 by inserting the upper end portion of the door body 12 between the side wall portions 63. Is done. Further, in the vertical direction, the distance between the lower surface of the support piece 66 and the upper surface of the connecting portion 64 is substantially the same as the distance between the upper end portion of the door body 12 housed in the door housing portion 13 and the floor surface. The upper surface of the lid member 61 installed on the upper portion of the door body 12 is flush with the floor surface. Furthermore, the distance from the front end edge of one extension part 65 to the front end edge of the other extension part 65 is substantially the same as the width of the door accommodating part 13, and a lid installed on the upper part of the door body 12. There is almost no gap between the upper surface of the member 61 and the floor surface. In the present embodiment, the lid member 61 is installed at a position (a position outside the pair of groove portions 17) that can face the air caster 32 during the movement of the SHED 3 in the upper opening of the door accommodating portion 13. The site is occluded.

  As shown in FIG. 5B, the bridge 71 includes a V-shaped bottom plate portion 73, side plate portions 74 extending upward from both side portions of the bottom plate portion 73, and the front side portion and the rear side portion of each side plate portion 74. And a locking piece 75 extending forward and rearward. Then, the respective locking piece portions 75 are inserted into the groove portions 17 formed on the floor surface of the second area 5 and the groove portions 17 formed on the floor surface outside the environmental test chamber 2, respectively. The bridge 71 is installed in the upper opening portion of the door accommodating portion 13 by bringing the stopper portion 75 into contact with the side surface and the bottom surface of the groove-like portion 17. In the present embodiment, the lower end portion of the locking piece portion 75 is located slightly above the boundary portion between the bottom plate portion 73 and the side plate portion 74, and the locking piece portion 75 is locked to the groove-shaped portion 17. Thus, the bottom surface of the bridge 71 (the upper surface of the bottom plate portion 73) is flush with the bottom surface of the groove-shaped portion 17.

  Note that a step is formed at the boundary between the locking piece portion 75 of the bridge 71 and the side surface of the groove portion 17, but the bottom surface of the groove portion 17 and the bridge 71 is V-shaped, and the guide roller 54 is Since the groove 17 and the bridge 71 are moved toward the center, it is possible to prevent the guide roller 54 from being caught by such a step. Further, even if the bridge 71 is displaced along the extending direction of the groove-shaped portion 17, the front side portion and the rear side portion of the bottom plate portion 73 come into contact with the wall portion of the door accommodating portion 13, so that the bridge 71 is It is possible to prevent a situation where the door housing part 13 is detached.

  Next, a flow in a case where a running test of the vehicle M is performed by the chassis dynamometer 7 installed in the first area 4 and then a transpiration gas measurement test is performed in the SHED 3 will be described.

1) When performing a low temperature test in the first area 4 and then performing a transpiration gas measurement test:
First, the vehicle M is carried into the first area 4 through the second area 5 from the carry-in entrance 11 to the environmental test chamber 2 in which the SHED 3 is not accommodated, and the vehicle M is set in the chassis dynamometer 7. Then, after closing the carry-in port 11 and air-conditioning the environmental test chamber 2, the vehicle M is simulated running (mode running) and a running test is performed.

  Next, after changing the set temperature of the air conditioning in the environmental test chamber 2 to raise the temperature from a low temperature state to a temperature close to normal temperature, the carry-in entrance 11 is opened and the SHED 3 is carried into the environmental test chamber 2. In the present embodiment, the lid member 61 and the bridge 71 are installed in the upper opening of the door accommodating portion 13 prior to the loading of the SHED 3. Specifically, the lid member 61 is installed at a position (a side wall side of the environmental test chamber 2 with respect to the groove-shaped portion 17) that can contact the air caster 32 during the movement of the SHED 3 in the upper opening of the door accommodating portion 13. At the same time, the bridge 71 is installed so as to connect the groove portion 17 formed on the floor surface of the second area 5 and the groove portion 17 formed on the floor surface outside the environmental test chamber 2.

  Then, the air caster 32 of the loading platform 31 and the compressed air supply device are connected via an air controller and a hose so that the compressed air is ejected from the ejection port 42 of the air caster 32 and the loading platform 31 on which the SHED 3 is placed is floated. In this state, the SHED 3 is carried into the environmental test chamber 2.

  After the SHED 3 is carried into the second area 5, the supply of compressed air to the air caster 32 is stopped, and the ground pad 44 is grounded to the floor surface. Subsequently, the air conditioning opening 23 of the SHED 3 and the second air conditioner 9 are communicated with each other through the duct 22, and the lifting device 19 is driven to lower the floor surface of the second area 5, and the floor surface of the SHED 3 and the environmental test are performed. The floor of the chamber 2 (first area 4) is flush with the floor. Then, the vehicle M is carried into the SHED 3, the sealing door 26 (the carry-in opening 25) is closed, the SHED 3 is air-conditioned, and a transpiration gas measurement test is performed.

2) When a normal pressure or low pressure test at room temperature or higher is performed in the first area 4, and then a transpiration gas measurement test is performed:
First, the vehicle M is carried into the environmental test chamber 2 in which the SHED 3 is not accommodated, and is set in the chassis dynamometer 7 in the first area 4. Then, the SHED 3 evacuated to the outside of the environmental test chamber 2 is carried into the environmental test chamber 2 by the following procedure.

  In the present embodiment, the lid member 61 and the bridge 71 are installed in the upper opening of the door accommodating portion 13 prior to the loading of the SHED 3. Specifically, it is the same as the case where the low temperature test is performed in the first area 4. Then, compressed air is ejected from the air caster 32 (spout port 42) of the loading platform 31 to float the loading platform 31 on which the SHED 3 located at the retreat position (outside of the environmental testing chamber 2) is placed. In this state, the SHED 3 is moved to the environmental testing chamber. 2 (second area 5). Note that the SHED 3 is transported into the environmental test chamber 2 by human-powered horizontal propulsion or the like, as in the case where the low temperature test is performed in the first area 4.

  Subsequently, after the SHED 3 is carried into the second area 5, the supply of compressed air to the air caster 32 is stopped, the ground pad 44 is grounded to the floor surface, and the air conditioning opening 23 of the SHED 3 and the second air conditioner 9 Are communicated through a duct 22. Here, it is convenient to drive the lifting device 19 to lower the floor surface of the second area 5 so that the floor surface of the SHED 3 is flush with the floor surface of the environmental test chamber 2 (first area 4).

  In this state, the carry-in port 11 is closed and sealed. Thereafter, air conditioning of the environmental test chamber 2 is performed, the atmospheric pressure of the environmental test chamber 2 is adjusted, and the vehicle M is simulated to perform a running test.

  After the running test, the vehicle M is prepared to be introduced into the transpiration gas measurement test by a predetermined procedure, and the vehicle M is moved into the SHED 3 immediately after the hermetic door 26 (loading opening 25) of the SHED 3 is opened. Then, after the vehicle M is carried into the SHED 3, the sealed door 26 (the carry-in opening 25) is closed, and the transpiration gas measurement test is performed while the SHED 3 is air-conditioned or stopped.

  The vehicle test system 1 can perform various vehicle tests in addition to the above test. However, when performing a performance test of the vehicle M in a low temperature environment in the environmental test chamber 2, the SHED 3 is used. Such a performance test is performed in a state of being out of the environmental test chamber 2.

  As described above in detail, in the present embodiment, since the SHED 3 can be installed in the environmental test chamber 2, when moving the vehicle M from one of the environmental test chamber 2 and the SHED 3 to the other, the environmental test chamber. It is not necessary to open the two carry-in ports 11 or to take the vehicle M out of the room. Therefore, each vehicle test in the environmental test chamber 2 and the SHED 3 can be efficiently performed. Furthermore, when a performance test in a low temperature environment is performed in the environmental test chamber 2, the SHED 3 can be taken out of the environmental test chamber 2. Therefore, it is possible to prevent a situation in which the transpiration gas measuring device of the SHED 3 breaks down due to being placed in a low temperature environment.

  In addition, for example, when the SHED 3 is permanently installed in the environmental test chamber 2, one opening portion (loading opening portion 25) for carrying the vehicle M into the SHED 3 is provided at the front and rear, or the side of the SHED 3 is disposed on the side of the SHED 3. It is necessary to widen the environmental test chamber 2 so that M can pass through. In this regard, as in this embodiment, by configuring the SHED 3 to be able to be taken in and out of the environmental test chamber 2, the vehicle M can be placed in the first area 4, the second area 5, and the like without taking the above measures. And can be moved between the outside of the environmental test chamber 2. Accordingly, various problems caused by increasing the number of the SHED 3 carry-in openings 25 or enlarging the environmental test chamber 2 (decrease in airtightness of the SHED 3, deterioration of air-conditioning efficiency of the environmental test chamber 2, pressure setting) Malfunctions) can be prevented.

  Moreover, SHED3 is mounted in the loading platform 31 provided with the air caster 32 from which compressed air is blown off. For this reason, buoyancy is obtained by supplying compressed air to the air caster 32 during movement of the SHED 3, and the SHED 3 can be moved (taken in and out) relatively easily. Furthermore, since the loading platform 31 is separated from the floor surface, rattling (vibration) during movement of the SHED 3 can be suppressed. Accordingly, it is possible to prevent a situation in which the SHED 3 is distorted due to vibration and the airtightness is lowered.

  Furthermore, in the present embodiment, when the SHED 3 is carried in and out, a lid member 61 that closes a portion that can face the air caster 32 in the upper opening of the door accommodating portion 13 is installed. For this reason, even if the air caster 32 is located above the door accommodating portion 13 (the carry-in port 11), the compressed air blown from the air caster 32 is applied to the lid member 61 (the torus bag 43 and the lid member 61). Buoyancy can be obtained). Therefore, the effect of being able to move the SHED 3 smoothly without rattling is achieved more reliably.

  In addition, the loading platform 31 is provided with a guide member 33 including a guide roller 54 disposed inside the groove portion 17. For this reason, the movement of the SHED 3 is guided, and the movement of the SHED 3 can be performed more smoothly. In addition, the guide roller 54 is configured to be vertically movable. For this reason, it is possible to reliably prevent the guide roller 54 from coming out of the groove-shaped portion 17 when the cargo bed 31 is lifted by blowing compressed air from the air caster 32. Further, even if a slight step is formed in the groove portion 17 (or foreign matter has entered), when the guide roller 54 rides on the step, the guide roller 54 follows and is displaced up and down. Can be absorbed. Therefore, it is possible to reliably achieve the effect of suppressing the rattling (vibration) when the SHED 3 moves.

  Furthermore, in the present embodiment, when the SHED 3 is carried in and out, the groove-like portion 17 formed on the floor surface of the second area 5 with respect to the upper opening of the door accommodating portion 13 and the floor surface outside the environmental test chamber 2 A bridge 71 is installed to connect the groove-shaped portion 17 formed in the. Therefore, the guide roller 54 can be guided by the bridge 71 even if the guide roller 54 is located above the door accommodating portion 13 (the carry-in port 11). Therefore, the effect of moving the SHED 3 smoothly can be achieved more reliably.

  In addition, the floor surface of the second area 5 where the SHED 3 is installed is configured to be vertically displaceable, and an elevating device 19 that raises and lowers the floor surface of the second area 5 is provided. When the SHED 3 is carried into the second area 5, the floor surface of the second area 5 and the floor surface in the environmental test chamber 2 are flush with each other. For this reason, the SHED 3 can be smoothly carried into the second area 5 as described above. In addition, when the vehicle M moves between the SHED 3 installed in the second area 5 and the first area 4, the floor surface of the SHED 3 installed in the second area 5 and the floor surface in the environmental test chamber 2. And will be the same. For this reason, the vehicle M can be smoothly taken in and out of the SHED 3. Furthermore, for example, when a vehicle M is taken in and out of the SHED 3, a separate slope is installed to eliminate the step, and the slope is removed when the vehicle M is moved in and out of the environmental test chamber 2. It is not necessary to perform the operation, and workability can be improved. In addition, even if the step is eliminated using the slope, if the slope of the slope is steep, the SHED 3 vibrates when the vehicle M is moved in and out of the SHED 3, and the SHED 3 is distorted due to this. There is a fear. In this respect, according to the present embodiment, the floor surface of the environmental test chamber 2 and the floor surface of the SHED 3 can be flush with each other, so that such a problem can be avoided.

  In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other application examples and modification examples not illustrated below are also possible.

  (A) In the above embodiment, the lid member 61 is configured as a separate body from the door body 12, but the lid member 61 may be configured integrally with the door body 12. Further, the bridge 71 may be formed integrally with the door body 12. In this case, when the SHED 3 is moved, it is not necessary to install and remove the lid member 61 and the bridge 71, and workability can be improved.

  Moreover, in the said embodiment, although the cover member 61 was the structure supported by the upper part of the door body 12, it is good also as a structure latched by the upper edge part of the door accommodating part 13, for example. In this case, it is desirable to form a recess that accommodates the locking portion of the lid member 61 in the upper edge portion of the door accommodating portion 13 so that the upper surface of the lid member 61 and the floor surface are flush with each other.

  (B) In the above embodiment, the guide roller 54 is in contact with the bottom surface of the groove portion 17. For example, the guide roller 54 is provided so that the rotation axis is in the vertical direction, and the groove portion 17 is provided. Alternatively, the guide roller 54 may be in contact with the side surface.

  Moreover, in the said embodiment, although the bottom face of the groove-shaped part 17 and the bridge | bridging 71 is V-shaped, it is good also as a flat surface (cross-sectional U-shape). However, by forming the bottom surface of the groove portion 17 and the bridge 71 in a V shape, the guide roller 54 can be brought close to the center portion of the groove portion 17, and the guide roller 54 is placed on the side wall portion of the groove portion 17. It is possible to prevent a situation such as contact. Further, the locking piece portion 75 of the bridge 71 may be omitted, and the bottom plate portion 73 of the bridge 71 may be supported on the bottom surface of the groove portion 17. When this configuration is adopted, a step is formed between the bottom surface of the groove portion 17 and the bottom surface of the bridge 71. However, since the guide roller 54 moves up and down, the guide roller 54 rides on the step. Can be absorbed, and the load carrier 31, and thus the SHED 3 can be prevented from vibrating. The bridge 71 may be supported on the upper portion of the door body 12.

  (C) In the above embodiment, the first air conditioner 8 that air-conditions the environmental test chamber 2 and the second air conditioner 9 that air-conditions the SHED 3 are provided separately, but the environmental test chamber 2 is provided by one air conditioner. And SHED 3 may be configured to be air conditioned. For example, one air conditioner, a first duct that communicates the air conditioner and the environmental test chamber 2, a second duct that communicates the air conditioner and the SHED 3, and a first on-off valve that opens and closes the first duct It is good also as providing the 2nd on-off valve which opens and closes the 2nd duct. In the above embodiment, even if the first air conditioner 8 is simply omitted, the first area 4 can be air-conditioned by the second air conditioner 9. It is also possible to air-condition the first area 4 with the air conditioner of the wind tunnel device 15.

  (D) It is good also as a structure which moves (self-propelled) SHED3 by providing a drive device with respect to the loading platform 31 of the said embodiment, and driving a drive device. Moreover, in the said embodiment, it is good also as mounting a compressed air supply apparatus and an air controller in the loading platform 31. FIG.

  (E) In the above embodiment, the door body 12 is configured to be movable up and down, but may be configured to be slidable in the left-right direction. In this case, the lid member 61 is installed in a portion of the frame portion (concave portion) that guides the movement of the door body 12 that can face the air caster 32 when the SHED 3 moves. However, the environmental test chamber 2 is installed when the door 12 is opened by displacing the door 12 in a state where the carry-in 11 is closed or when the door 12 is slid left and right. It becomes necessary to make the ceiling of the room high or wide. For this reason, as in the above-described embodiment, it is desirable to employ a configuration in which the door body 12 is accommodated under the floor when the carry-in entrance 11 is opened.

1 is a schematic cross-sectional view showing a schematic configuration of a vehicle test system in an embodiment. 1 is a schematic plan view showing a schematic configuration of a vehicle test system. (A) is a side view which shows an air caster, (b) is a side view which shows a guide member. It is a fragmentary perspective view which shows the lower corner part of a carrying-in port. (A) is sectional drawing which shows a cover member, (b) is a perspective view which shows a bridge | bridging.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Vehicle test system, 2 ... Environmental test room, 3 ... SHED (sealed measurement room), 4 ... 1st area (1st area | region), 5 ... 2nd area (2nd area | region), 8 ... 1st air conditioning Device: 9 ... 2nd air conditioner, 11 ... Carrying in, 12 ... Door body, 13 ... Door accommodating part, 17 ... Groove part, 22 ... Duct, 23 ... Air conditioning opening, 25 ... Carrying in opening, 26 ... Sealing Door, 31 ... loading platform, 32 ... air caster, 33 ... guide member, 42 ... spout, 51 ... fixed part, 52 ... movable part, 54 ... guide roller, 61 ... lid member, 71 ... bridge, M ... vehicle.

Claims (5)

At least an environmental test room that can set an environment for performing a performance test of a vehicle in an environment in which atmospheric pressure is adjusted other than atmospheric pressure, and a sealed measurement room in which a transpiration gas measurement test for measuring transpiration gas transpiration from the vehicle is provided. In the vehicle test system,
The environmental test chamber includes a first region where a vehicle subject to the performance test is operated under predetermined test conditions, and a second region adjacent to the first region and capable of accommodating the sealed measurement chamber. And a first air conditioner capable of air-conditioning the first area, a second air conditioner capable of air-conditioning the sealed measurement chamber, and adjusting the atmospheric pressure in the first area and the second area. An atmospheric pressure adjusting device, and configured such that a vehicle can travel between the sealed measurement chamber installed in the second region and the first region,
The sealed measurement chamber includes a transpiration gas measurement device that measures transpiration gas transpiration from a vehicle housed in the sealed measurement chamber, and an air conditioning opening that communicates with the second air conditioning device via a detachable duct. And is placed on a cargo bed having a spout from which compressed air is blown out, and is configured to be able to enter and exit the environmental test chamber,
A vehicle test system, wherein compressed air is blown out from the jet port, whereby the compressed air acts on the floor surface, and the loading platform on which the sealed measurement chamber is placed is separated from the floor surface. The environmental test room includes a carry-in port capable of carrying a vehicle and the sealed measurement chamber, and a door body that opens and closes the carry-in port and can seal the carry-in port when closed.
Among the recesses formed for sliding the door body on the floor surface of the carry-in entrance, there is provided a lid member that closes at least a portion that can face the ejection port when the sealed measurement chamber is moved. The vehicle test system according to claim 1. The loading platform includes a guide roller disposed inside a groove-shaped portion formed along the loading / unloading direction of the sealed measurement chamber,
The guide roller is attached to the cargo bed via a coupling member that can be vertically expanded and contracted, and when the cargo bed is raised by blowing compressed air from the jet outlet, the coupling member follows and extends. The vehicle test system according to claim 1, wherein a contact state between the guide roller and the groove-like portion is maintained. The environmental test room includes a carry-in port capable of carrying a vehicle and the sealed measurement chamber, and a door body that opens and closes the carry-in port and can seal the carry-in port when closed.
A recess for sliding the door body is formed on the floor surface of the carry-in entrance,
The groove-shaped portion is configured to extend from the floor surface in the environmental test chamber to the floor surface outside the environmental test chamber across the recess.
4. The bridge according to claim 3, further comprising a bridge connecting the groove-shaped portion formed on the floor surface in the environmental test chamber and the groove-shaped portion formed on the floor surface outside the environmental test chamber. Vehicle testing system. The floor surface of the second region where the sealed measurement chamber placed on the cargo bed is installed is configured to be vertically displaceable, and includes a lifting device that lifts and lowers the floor surface of the second region,
When carrying in and out of the sealed measurement chamber, the floor surface of the second region and the floor surface of the environmental test chamber are flush with each other,
When moving the vehicle between the sealed measurement chamber installed in the second region and the first region, the floor surface of the sealed measurement chamber installed in the second region and the environment The vehicle test system according to claim 1, wherein a floor surface of the test chamber is flush with the test room.

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