Vehicle driving simulation test device

Abstract

To develop a vehicle simulation traveling inspection device that is suitable for introduction into the existing maintenance space of a small-scale dealership-level service shop.SOLUTION: A vehicle simulation traveling inspection device M of the present invention includes: an inspection cabin 1 having been subjected to sound absorption treatment; and an inspection deck 2 on which a vehicle V is mounted. The inspection deck 2 includes: rotating rollers 22 that rotate receiving rotation of a driving wheel of the vehicle V; an air supply duct device 3 that brings outside air into an inspection room; an exhaust duct device 4 that exhausts indoor air including engine exhaust to the outside. In both of these duct devices, all or part of a supply air duct main body 31 and an exhaust duct main body 40 are arranged along a ceiling panel 13, and an exhaust duct body 40 is arranged such that at least a path along the ceiling panel 13 is bent so that volume of the exhaust duct body 40 is increased to attenuate exhaust sound pressure of exhaust gas discharged from the vehicle V.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a vehicle simulation running test device suitable for installation in, for example, a motorcycle maintenance factory or the like.

Background Art

[0002] For example, in shops and maintenance factories handling vehicles such as motorcycles, in maintenance sites where relatively strict engine setting and tuning are performed, instead of actual running tests, inspection decks such as chassis dynamometers that can simulate actual running conditions are introduced. Looking at the actual usage situation of such inspection decks, in many cases, a vehicle simulation running test device (inspection cabin) is provided at a corner of the floor of a maintenance factory, and the inspection deck is housed inside. A vehicle is placed on the inspection deck, and measurements such as engine output are taken. Of course, in such a device, in order to prevent the adverse effects of exhaust gas discharged from the motorcycle during inspection from affecting the maintenance room, an exhaust gas suction duct (suction port) is faced at the exhaust pipe end of the vehicle, and a device is also devised to discharge the exhaust gas components to the outside (outside the maintenance room). However, in such a usage state, although the exhaust noise associated with engine startup is somewhat muffled, it is not sufficient. The exhaust noise reverberates throughout the entire maintenance site as noise (explosion noise), and it tends to damage a good working environment.

[0003] Of course, in the case of vehicle manufacturers, etc., when performing high-level engine power measurement for development and test prototypes, a larger-scale and highly sealed test room is provided, and facilities are provided to more reliably prevent external leakage of noise. However, it is almost unrealistic to introduce such a large-scale and high-level test room (facility) into individual sales store-level service factories (so-called bike shops) due to factors such as introduction cost and introduction space.

Prior Art Documents

Patent Documents

[0004] [Patent Document 1] Japanese Patent Publication No. 2008-175564 [Patent Document 2] Japanese Patent Publication No. 2000-111452 [Patent Document 3] Japanese Patent Application Publication No. 2-269927 [Overview of the Initiative] [Problems that the invention aims to solve]

[0005] This invention was made in consideration of these circumstances, and the technical challenge was to develop a vehicle simulation driving inspection device of an appropriate size for introduction into existing maintenance spaces available at motorcycle shops. [Means for solving the problem]

[0006] First, the vehicle simulation driving inspection device described in claim 1 is: An inspection cabin equipped with sound-absorbing treatment that can isolate it from the outside, This vehicle simulation driving inspection device is installed inside the inspection cabin and includes an inspection deck on which a vehicle is placed, The inspection deck supports the vehicle's driving wheels and includes rotating rollers that rotate in response to the rotation of the driving wheels. Furthermore, the inspection cabin, The inspection deck installation area where the inspection deck will be installed, A wall panel erected around the periphery of the inspection deck installation area, The ceiling panel that covers the top of this wall panel and It is composed of such elements and has an interior that serves as an examination room. Furthermore, in addition to the aforementioned inspection deck, the inspection room also includes: An air supply duct system that communicates with the outside and brings outside air into the inspection room, It also includes an exhaust duct device that communicates with the outside and discharges indoor air, including engine exhaust, to the outside. These air supply duct systems and exhaust duct systems are both arranged so that all or part of their air supply duct bodies and exhaust duct bodies are aligned along the ceiling panel, Furthermore, the exhaust duct body is characterized in that at least the path along the ceiling panel is arranged in a bent manner, increasing the volume of the exhaust duct body and reducing the exhaust sound pressure of the exhaust gas discharged from the vehicle.

[0007] Furthermore, the vehicle driving test device according to claim 2, in addition to the requirements of claim 1, The exhaust duct body is characterized in that its path along the ceiling panel is bent at least three times.

[0008] Furthermore, the vehicle driving test device according to claim 3, in addition to the requirements of claim 1 or 2, The operating states of the supply fan in the supply air duct system and the exhaust fan in the exhaust air duct system are configured to be freely configurable.

[0009] Furthermore, the vehicle driving test device according to claim 4, in addition to the requirements of claim 3, The pressure conditions inside the aforementioned examination room are characterized by being set to a negative pressure state that is equivalent to or lower than the outside air pressure.

[0010] Furthermore, the vehicle simulation driving inspection device according to claim 5, in addition to the requirements of claim 1 or 2, The aforementioned vehicle is characterized by being a motorcycle.

[0011] Furthermore, the vehicle driving test device according to claim 6, in addition to the requirements of claim 5, The inspection deck is characterized in that the wheel stoppers that hold the non-driven wheels of the vehicle slide back and forth on the inspection deck.

[0012] Furthermore, the vehicle simulation driving inspection device according to claim 7, in addition to the requirements of claim 1 or 2, The wall panel and the ceiling panel are each configured as prefabricated unit structures with sound-absorbing pads previously attached to one surface of the outer shell material, and are supplied to the construction site of the inspection cabin. And, by using the configurations described in each of these claims as means, the above problems are solved.

Effects of the Invention

[0013] First, according to the invention described in claim 1, since the exhaust duct body of the exhaust duct device is arranged such that the path along the ceiling panel is in a bent state, the exhaust gas guided here has the sound pressure of the exhaust sound attenuated, and is discharged to the outside of the inspection cabin in a state of extremely low noise. Therefore, even when the inspection cabin is provided in a corner of the maintenance work area, the noise to the maintenance work area separated from the inspection cabin by a wall can be extremely reduced. Also, meetings, conversations, etc. conducted in such a place can be naturally exchanged at a normal volume, and other maintenance work, etc. conducted here can be carried out without stress. Furthermore, since a part of the air supply duct body of the air supply duct device is also arranged along the ceiling, as the overall duct configuration and duct arrangement, the duct piping provided along the floor surface is reduced, and an inspection cabin (inspection room) that is easy to work in can be realized.

[0014] Also, according to the invention described in claim 2, since the exhaust duct body is configured such that the path along the ceiling panel bends three or more times, the sound pressure of the exhaust sound in the exhaust gas can be efficiently attenuated, and the noise (explosion sound) of the exhaust gas can be made to hardly leak to the outside.

[0015] Also, according to the invention described in claim 3, since the operating states of the air supply fan and the exhaust fan can each be freely set, the air pressure state in the inspection room can be freely set. That is, an air pressure environment matching the actual use environment of the vehicle can be reproduced, and tuning, setting, etc. matching the above use environment can be faithfully carried out.

[0016] According to the invention described in claim 4, since the pressure state in the inspection chamber is set to be approximately atmospheric pressure or a negative pressure state, it is possible to prevent the adverse effects of the exhaust gas discharged from the vehicle's engine and maintain a clean state in the inspection chamber. Therefore, it is possible to prevent an increase in carbon monoxide in the inspection chamber, and even when working for a relatively long time, it is possible to prevent the operator from suffering from carbon monoxide poisoning. Furthermore, an operator performing tuning, setting, etc. in the inspection chamber can concentrate on the work without problems for a long time even without a dust mask.

[0017] According to the invention described in claim 5, since the vehicle is a motorcycle, it is possible to realistically introduce a simple vehicle simulation running inspection device for motorcycles according to the business scale, even in a so-called motorcycle shop that is often operated on a small scale.

[0018] According to the invention described in claim 6, since the inspection deck is configured such that the wheel stopper for holding the non-driven wheels of the vehicle can slide back and forth, the vehicle can be moved back and forth by the sliding of this wheel stopper, and the driving wheels can be surely placed on the rotating roller that does not move back and forth.

[0019] According to the invention described in claim 7, since the wall panel and the ceiling panel are supplied as a prefabricated unit configuration, a panel member (a panel member in which a sound-absorbing pad and a surface material are integrated) formed in advance as a flat member is transported to the construction site and assembled locally, whereby the wall surface and the ceiling surface of the inspection cabin can be installed, and it is possible to achieve shortening of the construction period and reduction of manufacturing costs in the construction of the inspection cabin.

Brief Description of the Drawings

[0020] [Figure 1] It is a perspective view showing the vehicle simulation running inspection device of the present invention. [Figure 2] It is a perspective view mainly showing the air supply duct device and the exhaust duct device parts in the vehicle simulation running inspection device of the present invention. [Figure 3]The above is a plan view mainly showing the air supply duct system and the exhaust duct system. [Figure 4] This is a side view (a) and a top view (b) showing an example of an inspection deck. [Modes for carrying out the invention]

[0021] The embodiments for carrying out the present invention are described below as preferred examples, and also include various forms that are modified based on this technical concept. [Examples]

[0022] The vehicle simulation driving inspection device M of the present invention will be described in detail below based on the illustrated embodiment. As an example, the vehicle simulation driving inspection device M of the present invention, as shown in Figure 1, comprises an inspection cabin 1, an inspection deck 2 provided inside the inspection cabin 1, and an air supply duct device 3 and an exhaust duct device 4 for ventilating the inspection cabin 1 during inspection. Specifically, the inspection cabin 1 is a sound-absorbing space that can be isolated from the outside, and the inspection deck 2 provided inside the inspection cabin 1 is for placing a vehicle V, such as a motorcycle, on it. The inspection deck 2 is equipped with rotating rollers 22 that support at least the driving wheels of the vehicle V and rotate in response to the rotation of the driving wheels. A typical example of the inspection deck 2 is a chassis dynamometer that measures the output of the driving wheels of the vehicle V while taking into account the rotation speed and speed of the rotating rollers 22, and measures the performance including the fuel supply state and output state of the engine. However, the inspection deck 2 is not necessarily limited to a chassis dynamometer for measuring the performance of the vehicle V. For example, it may be a device equipped with rotating rollers 22 that only receive the rotation of the driving wheels, and simply provide a simulated driving condition. In this case, the vehicle simulated driving inspection device M can be used, for example, to confirm that after replacing a part of the vehicle V, the part does not adversely affect the simulated driving condition.

[0023] The inspection cabin 1 and its components will be explained further below. First, as shown in Figure 1 above as an example, the inspection cabin 1 is configured as a certain partitioned indoor space by an inspection deck installation area 10 such as a floor pit, wall panels 11 that are provided in a rising manner from the periphery of the inspection deck installation area 10, and a ceiling panel 13 that closes the area above the wall panels 11. Furthermore, the inspection deck installation section 10 is preferably a floor pit created by excavating the floor surface somewhat to accommodate the inspection deck 2, and a concrete floor structure with reinforced concrete bars is desirable. This configuration is preferable because, even when the inspection deck 2 is stored in the inspection room 14, the position of the vehicle V during inspection does not become excessively high. However, if the land and building of a motorcycle shop or similar are leased properties, it is relatively difficult to excavate the concrete floor surface to form a pit. In such cases, it is preferable to use a flat concrete floor surface as the inspection deck installation section 10, as shown in Figure 4(a), and install and fix a low-height inspection deck 2 on it, thereby keeping the height of the inspection deck 2 on which the vehicle V is placed during measurement low. Furthermore, the inspection deck installation section 10, particularly the pit-shaped inspection deck installation section 10, is preferably roughly rectangular in plan view, and the vehicle side (and front) of the inspection deck 2 is preferably formed as a flat surface that is almost the same as the top surface of the inspection deck 2 to facilitate measurement and adjustment work by the operator (see Figure 1).

[0024] Furthermore, the wall panels 11 erected around the periphery of the inspection deck installation section 10 are, for example, as shown in Figures 1 to 3, the front panel 11A located on the front side of the vehicle V to be measured, the rear panel 11B on the opposite side, and the side panels connected to these are designated as a closed side panel 11C and an open side panel 11D. Here, the closed side panel 11C and the front panel 11A are configured to have virtually no openings, while the rear panel 11B and the open side panel 11D are provided with openings (openable parts) such as doors and windows. Specifically, the rear panel 11B is provided with, for example, a double-hinged entrance / exit door 15. The open side panel 11D is provided with an observation window 16, which is made of double transparent glass or acrylic to prevent engine noise and other sounds from leaking to the outside of the inspection room 14.

[0025] Furthermore, for these wall panels 11, ceiling panels 13, entrance / exit doors 15, etc., sound-absorbing pads 17 are provided on the inspection room 14 side, as shown in Figure 3 as an example. The sound-absorbing pad 17 consists of a bag-shaped cover body 17A made of, for example, a flexible sheet-like material, and a core material 17B housed inside the cover body 17A. For the core material 17B, for example, a sound-absorbing material such as glass wool with excellent sound absorption performance can be used. In short, the cover body 17A and core material 17B only need to exhibit sufficient sound absorption performance, and therefore the cover body 17A does not necessarily need to be made of a sheet-like material. For example, it can be made of perforated metal with many through holes, and a core material 17B such as foamed urethane with protruding irregularities inside can be provided. Furthermore, appropriate surface material 18 is provided on the exterior (outdoor) side of the wall panel 11 and ceiling panel 13. Specifically, the wall panel 11 and ceiling panel 13 are configured such that the surface material 18 is in close contact with the outdoor side of the sound-absorbing pad 17, or the sound-absorbing pad 17 is attached to the indoor side of the surface material 18. This configuration maintains a high level of rigidity on the outer perimeter of the inspection room 14. Furthermore, it is preferable to provide a rubber strip or the like around the periphery of the door body between the rear panel 11B and the entrance / exit door 15, which can seal off the inspection room 14, in order to further enhance the soundproofing effect inside the room.

[0026] Next, I will describe the inspection deck 2 located inside the inspection room 14 of the inspection cabin 1. The inspection deck 2 is designed to accommodate the vehicle V and reproduce its actual running conditions; a typical example of this is a chassis dynamometer, as mentioned above. If the inspection deck installation area 10 is formed as a pit-like excavation, the inspection deck 2 will be housed in this floor pit. Furthermore, in the inspection deck 2, the upper surface on which the vehicle V is placed is the deck surface 21. For example, when the vehicle V is a motorcycle, a rotating roller 22 is provided on this deck surface 21 in the area on which the rear wheels (drive wheels) of the vehicle V are placed. In this embodiment, as an example, as shown in Figures 1 and 4, the rotating rollers 22 are installed in parallel, and are positioned to stably support the rear wheels of the vehicle V between the two rotating rollers 22. This makes it possible to minimize the diameter of the rotating rollers 22, and also keeps the height of the vehicle V placed on the deck surface 21 low. In particular, when the inspection deck installation area 10 is formed as a flat concrete floor, the height dimension of the inspection deck 2 (deck surface 21) itself can be kept low.

[0027] Furthermore, on the opposite side of the rotating roller 22, i.e., the front side of the vehicle, a wheel stopper 23 is provided to hold the front wheels (non-driven wheels) of the vehicle V placed on the deck surface 21. As shown in Figure 4 as an example, this wheel stopper 23 is configured to move freely back and forth by rotating the handle 23h, because the distance from the front wheels to the rear wheels of the vehicle V varies depending on the engine displacement and the structure of the vehicle V. This makes it possible to inspect various motorcycles (vehicles V) with different distances. While a steering wheel is typically operated manually, it can also be moved back and forth using an electric cylinder or similar mechanism. Furthermore, a slope 24 is formed at the tip of the rotating roller 22, which serves as a guide to make it easier to load the vehicle V onto the deck surface 21. Of course, the slope 24 also makes it easier to lower the vehicle V from the deck surface 21.

[0028] Furthermore, as shown in Figure 4(b) as an example, the inspection deck 2 is provided with arm-shaped fixing rods 25 extending to the left and right from the front and rear ends of the deck surface 21, in order to firmly and securely fix the vehicle V placed on the deck surface 21. In other words, since it is necessary to firmly fix the vehicle V to the inspection deck 2 during inspection, in this embodiment, the hooks 25f provided at the ends of the fixing rods 25 and the frame portion of the vehicle V are fixed to each other by connecting members such as four tie-down belts (lashing belts) B. It is preferable that the four tie-down belts B be arranged so as to be substantially radial from the vehicle V to the hooks 25f. Furthermore, a display 26 and a setting board 27 are arranged on the side of the inspection deck 2, as shown in Figure 1 as an example. The setting board 27 is equipped with a keyboard or the like for performing appropriate setting operations. Note that a commercially available, well-known chassis dynamometer can be used for the inspection deck 2.

[0029] Next, we will describe the air supply duct system 3 and the exhaust duct system 4 installed in the inspection cabin 1 (inspection room 14). First, let's explain the air supply duct system 3. The air supply duct device 3 is a device that takes outside air into the inspection room 14, and the actual duct portion of this device is designated as the air supply duct body 31. The air supply duct body 31 comprises an external duct 32 installed outside the inspection room 14 and an internal duct 33 installed inside the inspection room 14. The air supply duct body 31 may be constructed as a single integrated unit, but in practice it is formed by combining multiple air supply duct elements 34, which are duct members with a box cross-section. Furthermore, the air supply duct body 31 is divided into a ceiling mounting zone 35 and a vertical mounting zone 36. In this embodiment, the external duct 32, which is the route for introducing air from the outside into the inspection room 14, is formed as the vertical mounting zone 36. The internal duct 33, which is configured within the inspection room 14, is formed as the ceiling mounting zone 35, and its route is configured to follow the ceiling panel 13 inside the inspection room 14.

[0030] The ceiling installation zone 35 has a path that bends multiple times along the ceiling panel 13. For example, as shown in Figures 1 to 3 (especially Figure 3), the path is configured to bend four times within the inspection room 14 (a so-called zigzag pattern). Incidentally, if we include the bend from upward to horizontal, that is, the return trip from the vertical installation zone 36 to the ceiling installation zone 35, there are a total of five bends. In this embodiment, as an example, a supply air fan box 37 is provided in the middle of the ceiling installation zone 35 located within the inspection room 14. Inside this supply air fan box 37, a supply air fan 38, for example, using a sirocco fan, and a supply air fan motor 38M are provided, and the supply air fan 38 draws outside air into the inspection room 14.

[0031] Next, the exhaust duct device 4 will be described. The exhaust duct device 4 is a device that discharges exhaust gas emitted from the vehicle V and air from inside the inspection chamber 14 to the outside of the inspection chamber 14, and will be described starting from the upstream side in the direction of airflow. First, reference numeral 40 denotes the exhaust duct body, which constitutes the actual duct portion of the exhaust duct device 4. This exhaust duct body 40 forms the exhaust path from inside the inspection room 14 to the outside. Furthermore, an exhaust suction duct hose 41 is provided on the upstream side of the exhaust, and this is mainly for drawing in exhaust gases discharged from the vehicle V under inspection, and a heat-resistant flexible hose or the like is used.

[0032] Furthermore, the exhaust duct body 40 also comprises an external duct 42 installed outside the inspection room 14 and an internal duct 43 installed inside the inspection room 14. In addition, the exhaust duct body 40 is actually formed by combining multiple exhaust duct elements 44, which are duct members with a box cross-section. The exhaust duct body 40 is also divided into a vertical installation zone 45 and a ceiling installation zone 46. In this embodiment, the vertical installation zone 45 is installed from the discharge end (outlet end) of the exhaust suction duct hose 41, and the exhaust gas discharged from the vehicle V is configured to rise through this vertical installation zone 45. Subsequently, the exhaust gas flows from the upper end of this vertical installation zone 45 along a path along the ceiling panel 13 in the inspection room 14, that is, a path leading to the ceiling installation zone 46.

[0033] Furthermore, the path of the ceiling-mounted zone 46 is configured to bend multiple times, and as an example shown in Figures 1 to 3 (especially Figure 3), it is configured to bend four times within the inspection room 14 (a so-called zigzag pattern). Incidentally, if we include the bend from upward to horizontal on the upstream side, i.e., the return from the vertical-mounted zone 45 to the ceiling-mounted zone 46, and the bend from horizontal to downward on the downstream side, i.e., the return from the ceiling-mounted zone 46 to the vertical-mounted zone 45 (external duct 42), there are a total of six bends. The reason for bending the exhaust path (exhaust duct device 4) multiple times in this way is to increase the volume of the exhaust duct body 40 and effectively attenuate the sound pressure of the exhaust gas, and the applicant has confirmed that bending at least three times can effectively attenuate the sound pressure. Furthermore, it is preferable to further enhance the sound pressure attenuation effect of the exhaust duct body 40 by lining the inside of the duct member with an appropriate sound-absorbing material.

[0034] In this embodiment, as an example, an exhaust fan box 47 is provided in the middle of the ceiling mounting zone 46 located within the inspection room 14. Inside this exhaust fan box 47, an exhaust fan 48, for example, using a sirocco fan, and an exhaust fan motor 48M are provided, and the exhaust fan 48 discharges the exhaust gas discharged from the vehicle V to the outside of the inspection room 14 along with the air inside the inspection room 14. Furthermore, the exhaust gas emitted from the vehicle V and the air inside the inspection room 14 are discharged outside the inspection room 14 through an external duct 42 located outside the inspection room 14. Incidentally, for example, a filter unit can be installed in the external duct 42, which will effectively capture exhaust gas and fine particles associated with the exhaust gas.

[0035] Furthermore, in order to prevent exhaust gases from filling the inspection room 14, it is essential to operate the exhaust duct device 4. However, simply operating the exhaust duct device 4 at full power would result in an extremely low pressure state in the inspection room 14, causing problems such as the entrance / exit door 15 opening to the inside of the room. Therefore, in practice, the supply air duct device 3 is also operated in conjunction with the exhaust duct device 4 to adjust the pressure to be approximately the same as atmospheric pressure or slightly lower than atmospheric pressure (negative pressure state). The control box 5, described below, is responsible for performing this pressure control. As an example, the control box 5 is installed inside the inspection chamber 14 of the inspection cabin 1, for example, inside the closed side panel 11C, as shown in Figures 1 and 2. This control box 5 includes an air supply fan dial 51 for controlling the rotation state of the air supply fan motor 38M that drives the air supply fan 38, and an exhaust fan dial 52 for controlling the rotation state of the exhaust fan motor 48M that drives the exhaust fan 48. Furthermore, it is preferable to install an air conditioner or the like in the inspection room 14 of the inspection cabin 1 to maintain an appropriate indoor temperature.

[0036] The present invention has the specific configuration described above and is used as follows. For the purposes of this explanation, we will describe the case where a motorcycle is the vehicle V being inspected. (1) Place (mount) the vehicle on the inspection deck. First, the vehicle V to be inspected, i.e., the motorcycle, is moved into the inspection room 14 of the inspection cabin 1 and placed on the deck surface 21 of the inspection deck 2. In this case, since a ramp 24 is formed on the access end side of the inspection deck 2, it is easy to move the vehicle V onto the deck surface 21. Furthermore, if the inspection deck installation area 10 is formed as a pit-like excavation, the height from the floor surface to the deck surface 21 is further reduced, making it even easier to move the vehicle V onto the deck surface 21. Note that if the inspection deck installation area 10 is formed on a flat concrete floor surface, the height dimension to the deck surface 21 tends to be large, but even in such cases, the overall height dimension of the inspection deck 2 can be reduced by, for example, providing two pairs of rotating rollers 22 in parallel, one at the front and one at the back.

[0037] (2) Fixing the front wheels (non-drive wheels) Once the vehicle V is placed on the deck surface 21 in this manner, the front wheels (non-driven wheels) of the vehicle V are held and fixed to the wheel stoppers 23, as shown in Figure 4(a) as an example. In practice, the vehicle V placed on the deck surface 21 is moved forward so that the front wheels are held in place by the wheel stoppers 23, and then the front wheels are fixed to the wheel stoppers 23.

[0038] (3) Vehicle alignment Subsequently, the vehicle V is aligned in the longitudinal direction so that its rear wheels (drive wheels) face the rotating roller 22, because the distance from the front wheels to the rear wheels differs depending on the type of vehicle V. Specifically, the operation for positioning (forward and backward movement) involves, for example, manually rotating the handle 23h of the wheel stopper 23 by an operator to move the wheel stopper 23 forward and backward, thereby aligning the vehicle V, i.e., moving it forward and backward. Generally speaking, the larger the motorcycle, the longer the distance from the front wheel to the rear wheel. Therefore, the front wheel (wheel stopper 23) is positioned further forward on larger motorcycles. Once the vehicle V is aligned in this manner, the rear wheels come into contact with the pair of rotating rollers 22, providing a stable support state.

[0039] (4) Securing the vehicle with belts Subsequently, as shown in Figure 4(b) as an example, the vehicle V is securely and firmly fixed to the inspection deck 2 using tie-down belts (lashing belts) B or other connecting devices. Specifically, the frame of the vehicle V and the hook 25f provided at the tip of the fixing rod 25 are connected by tie-down belts B, and the connected tie-down belts B are tightened while tension is applied. For example, four tie-down belts B are provided, and a fixing configuration in which they are arranged radially in a plan view is preferred.

[0040] (5) Exhaust and intake settings Subsequently, the intake fan dial 51 and the exhaust fan dial 52 are adjusted to appropriately set the intake and exhaust conditions of the inspection chamber 14, that is, the atmospheric pressure inside the inspection chamber 14. In general, the pressure is often set to be approximately the same as atmospheric pressure, but it is preferable to increase the exhaust capacity somewhat to prevent adverse effects from exhaust gases emitted from the engine of the vehicle V and to purify the inside of the inspection chamber 14. In such cases, the inside of the inspection chamber 14 is set to a negative pressure state that is substantially somewhat lower than the outside air pressure. Of course, depending on the settings of the intake fan dial 51 and the exhaust fan dial 52, it is also possible to set the system to an even lower low-pressure state. This is intended to simulate the use of vehicle V in high-altitude locations (highlands), for example, to reproduce the same environmental conditions. Specifically, this is intended for situations such as using vehicle V in high-altitude locations, or in high-altitude vehicle competition facilities such as circuits, or in so-called hill climb races, and it is an intake and exhaust setting designed to improve engine output in such high-altitude conditions.

[0041] (6) Examination When performing the inspection, it is desirable for the worker to wear earmuffs or similar protection to mitigate the loud exhaust noise, as the engine of vehicle V will be started. Starting the engine will also reproduce the actual driving conditions of vehicle V, causing the rear wheels of vehicle V to rotate. This driving force from the rear wheels is transmitted to the rotating roller 22, and vehicle performance, including the engine condition, can be measured from the rotation of this rotating roller 22, for example. Of course, at this time, it is also possible to display the engine speed on a separate display 26 or the like, using, for example, the ignition pulse from the spark plug in vehicle V as an input source. On the other hand, the rotating roller 22 measures, for example, its rotational speed, which determines the travel speed, etc. Regarding the setting board 27, for example, if the fuel supply system of vehicle V can have its settings changed by a fuel injection system or the like, it can be changed as appropriate to obtain a suitable setting state depending on the output state, etc. Incidentally, if it is sufficient to obtain the actual driving conditions of vehicle V, or more specifically, if it is sufficient to rotate the rear wheels of vehicle V on the rotating roller 22 at an appropriate speed, then there is no need to measure the rotation of the rotating roller 22, nor is there any need to install equipment for that purpose.

[0042] Furthermore, regarding the exhaust suction duct hose 41 in the exhaust duct device 4, it is possible to connect the hose (suction port) to the exhaust pipe of the vehicle V in a completely tight seal. However, in practice, if this is done, the engine exhaust pressure due to the active exhaust from the exhaust suction duct hose 41 will be measured inaccurately. Therefore, in this case, the exhaust suction duct hose 41 is positioned at a distance from the exhaust pipe of the vehicle V. In this state, the performance of the vehicle V installed in the inspection room 14 is measured. In particular, in the exhaust duct device 4, the exhaust duct body 40, especially in the ceiling installation zone 46, is formed to bend multiple times (a so-called zigzag pattern), which increases the volume of the exhaust duct body 40. As a result, the sound pressure of the exhaust sound guided through it is attenuated, and it is discharged to the outside as an extremely quiet sound.

[0043] [Other examples] While the present invention is based on the embodiments described above as one basic technical concept, the following further modifications are conceivable. First, the inspection cabin 1 may be supplied in a box-like configuration, except for the inspection deck installation section 10. Furthermore, the wall panel 11 and ceiling panel 13 are each prefabricated units in which a sound-absorbing pad 17 is pre-attached to one side of the outer shell material 18. These prefabricated unit panels can be transported to the construction site of the inspection cabin 1 and assembled on-site to construct the walls of the inspection cabin 1. When the wall panel 11 and ceiling panel 13 are constructed as prefabricated units in this way, the sound-absorbing pad 17 and the outer shell material 18 are pre-formed as a single unit, which allows for shorter construction periods and reduced manufacturing costs during the construction of the inspection cabin 1. Furthermore, during measurement, the user of the vehicle V, such as a motorcycle, can observe the inspection status through the observation window 16 of the opening side panel 11D, thereby increasing the psychological reassurance for the user who requested the service inspection of the vehicle V.

[0044] Furthermore, while the basic embodiment described above primarily uses motorcycles as examples of vehicle V, the technical concept of providing an inspection cabin 1 with a structure appropriate to the size of the repair shop is applicable even when vehicle V is a four-wheeled vehicle, a three-wheeled motorcycle, or other vehicle V. Furthermore, in the basic embodiment described above, the ceiling mounting zone 46 of the exhaust duct device 4 was formed in a bent state. However, like the muffler (silencer) of a motorcycle, it is also possible to form it as a single housing externally, but with the flow path (path) inside through which the exhaust gas flows bent or curved, thereby attenuating the sound pressure of the exhaust gas through reflection, resonance, or sound-absorbing materials as the exhaust gas passes through this internal path. [Explanation of symbols]

[0045] M Vehicle Driving Simulation Test Device 1. Inspection cabin 10. Inspection deck installation section 11 Wall Panels 11A Front Panel 11B Rear Panel 11C Closed side panel 11D Opening Side Panel 13 Ceiling Panel 14. Laboratory 15 Entrance / Exit Doors 16 Observation window 17 Sound-absorbing pads 17A Cover 17B Core material 18 Shell material 2 Inspection deck 21 Deck side 22 Rotating Rollers 23 Wheel stopper 23h handle 24 slopes 25 Fixed rod 25ft hook 26 displays 27 Setting Board 3. Air supply duct system 31 Air supply duct body 32 External duct 33 Internal duct 34 Air supply duct elements 35 Ceiling Installation Zone 36 Vertical Installation Zone 37. Intake fan box 38. Intake fan 38M Intake Fan Motor 4. Exhaust duct system 40 Exhaust duct body 41 Exhaust and suction duct hose 42 External duct 43 Internal duct 44 Exhaust duct elements 45 Vertical Installation Zone 46 Ceiling Installation Zone 47 Exhaust fan box 48 Exhaust fan 48M Exhaust Fan Motor 5. Control Box 51 Intake fan dial 52 Exhaust fan dial B Tie-down belt V Vehicle

Claims

1. An inspection cabin equipped with sound-absorbing treatment that can isolate it from the outside, This vehicle simulation driving inspection device is installed inside the inspection cabin and includes an inspection deck on which a vehicle is placed, The inspection deck supports the vehicle's driving wheels and includes rotating rollers that rotate in response to the rotation of the driving wheels. Furthermore, the inspection cabin, The inspection deck installation area where the inspection deck will be installed, A wall panel erected around the periphery of the inspection deck installation area, The ceiling panel that covers the top of this wall panel and It is composed of such elements and has an interior that serves as an examination room. Furthermore, in addition to the aforementioned inspection deck, the inspection room also includes: An air supply duct system that communicates with the outside and brings outside air into the inspection room, It also includes an exhaust duct device that communicates with the outside and discharges indoor air, including engine exhaust, to the outside. These air supply duct systems and exhaust duct systems are both arranged so that all or part of their air supply duct bodies and exhaust duct bodies are aligned along the ceiling panel, Furthermore, the vehicle simulation driving inspection device is characterized in that the exhaust duct body is configured such that at least the path along the ceiling panel is arranged in a bent state, increasing the volume of the exhaust duct body and attenuating the exhaust sound pressure of the exhaust gas discharged from the vehicle.

2. The vehicle simulation driving inspection device according to claim 1, characterized in that the exhaust duct body is configured such that its path along the ceiling panel is bent at least three times.

3. The vehicle simulation driving inspection device according to claim 1 or 2, characterized in that the operating states of the intake fan in the intake duct device and the exhaust fan in the exhaust duct device are configured to be freely configurable.

4. The vehicle simulated driving inspection device according to claim 3, characterized in that the pressure state inside the inspection chamber is set to a negative pressure state equivalent to or lower than the outside air pressure.

5. The vehicle simulation driving inspection device according to claim 1 or 2, characterized in that the vehicle is a motorcycle.

6. The vehicle simulated driving inspection device according to claim 5, characterized in that the inspection deck has a configuration in which wheel stoppers that hold the non-driven wheels of the vehicle slide back and forth on the inspection deck.

7. The vehicle simulated driving inspection device according to claim 1 or 2, characterized in that the wall panel and ceiling panel are each prefabricated units with sound-absorbing pads pre-attached to one side of the surface material, and are supplied to the construction site of the inspection cabin.

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