Rainy day simulation equipment and test vehicle

Abstract

The utility model provides a rainy day simulation device and a test vehicle, and belongs to the technical field of vehicle test. The rainy day simulation equipment is arranged on a vehicle, the rainy day simulation equipment comprises a water storage tank, a water pump, a spraying device and a moving mechanism, the moving mechanism and the spraying device are both installed outside the vehicle, the spraying device is connected with the water storage tank through a water conveying pipeline, the spraying device is rotatably arranged on the moving mechanism, and the water pump is connected with the water storage tank. The water pump is used for conveying water stored in the water storage tank to the spraying device, and the moving mechanism is used for driving the spraying device to move. Compared with the prior art in which a tunnel with a long distance needs to be selected to independently establish a rainfall simulation system, the rainy day simulation equipment provided by the embodiment of the utility model can be directly installed on the vehicle, is not limited by places, is more convenient to use, and reduces the manpower and material resource cost required by construction at a specific place.

Description

Technical Field

[0001] The present application relates to the field of vehicle testing technology, and in particular to a rainy day simulation device and a test vehicle. Background Art

[0002] When testing a vehicle, it is necessary to simulate different environments to ensure the integrity of the performance test. For example, when testing in a rainy environment, the relevant technology generally uses a long tunnel and a large number of rainfall equipment to establish a rainfall simulation system, which is very costly. Utility Model Content

[0003] The embodiments of the present application provide a rainy day simulation device and a test vehicle to solve the problem of high cost of vehicle testing in rainy day environments.

[0004] In the first aspect, an embodiment of the present application provides a rainy day simulation device, which is arranged on a vehicle. The rainy day simulation device includes a water tank, a water pump, a spray device and a moving mechanism. The moving mechanism and the spray device are both installed on the outside of the vehicle. The spray device is connected to the water tank through a water supply pipe. The spray device can be rotatably arranged on the moving mechanism. The water pump is used to transport water stored in the water tank to the spray device. The moving mechanism is used to drive the spray device to move.

[0005] Optionally, the moving mechanism is used to drive the spray device to reciprocate along the width direction of the vehicle.

[0006] Optionally, the moving mechanism includes a slide rail and a slide platform, the slide rail is fixed to the vehicle along the width direction of the vehicle, the slide platform is installed on the slide rail, and the slide platform can slide relative to the slide rail, and the spray device is rotatably connected to the slide platform.

[0007] Optionally, the moving mechanism also includes a buffer spring, two of which are respectively arranged on both sides of the sliding platform, one end of the buffer spring is connected to the end of the sliding rail, and there is a gap between the other end of the buffer spring and the sliding platform, and the extension direction of the buffer spring is consistent with the width direction of the vehicle.

[0008] Optionally, the spray device comprises a first spray unit and a second spray unit, the water spray aperture of the spray head of the first spray unit is not adjustable, and the water spray aperture of the spray head of the second spray unit is adjustable.

[0009] Optionally, the nozzle of the first spray unit includes a splash plate, the splash plate includes a mounting plate and a plurality of splash teeth, a water outlet is opened at the center of the mounting plate, and a plurality of splash teeth are arranged on the mounting plate around the water outlet, and the water spraying direction of the first spray unit is perpendicular to the plate surface of the mounting plate.

[0010] Optionally, the first spray unit further includes a baffle, which is arranged on a side of the splash plate away from the spray head of the first spray unit, and is used to change the direction of water flow passing through the splash plate and splashing onto the baffle.

[0011] Optionally, the rainy day simulation device also includes a control valve and an air compressor, the control valve is connected to the water pipeline and the spraying device, the air compressor is connected to the control valve, and the air compressor is used to pressurize the water flow input into the control valve from the water pipeline.

[0012] In a second aspect, an embodiment of the present application further provides a test vehicle, comprising a vehicle body and a rainy day simulation device as described in the first aspect, wherein the rainy day simulation device is installed on the top of the vehicle body.

[0013] Optionally, the test vehicle further includes a radar, which is installed on the vehicle body and is located within the spray range of the rain simulation equipment.

[0014] In the technical solution provided in the embodiment of the present application, since the spray device can be rotatably arranged on the mobile mechanism, and the mobile mechanism can drive the spray device to move, spray areas of different ranges can be formed on the vehicle according to needs to simulate rainy day conditions. Compared with the prior art that requires selecting a longer tunnel to separately establish a rainfall simulation system, the rainy day simulation equipment in the embodiment of the present application can be directly installed on the vehicle without any location restrictions, is more convenient to use, and reduces the manpower and material costs required for construction at a specific location. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 It is one of the structural schematic diagrams of the rainy day simulation device provided in the embodiment of the present application;

[0017] Figure 2 This is the second structural schematic diagram of the rainy day simulation device provided in the embodiment of the present application;

[0018] Figure 3 It is a structural schematic diagram of a water pipe socket provided in an embodiment of the present application;

[0019] Figure 4 is a structural schematic diagram of a first spray unit provided in an embodiment of the present application;

[0020] Figure 5 It is a schematic diagram of the structure of the power socket provided in an embodiment of the present application.

[0021] Reference numerals:

[0022] 1. Water storage tank; 2. Spraying device; 21. First spraying unit; 211. Splashing plate; 212. Mounting plate; 213. Splashing teeth; 214. Water outlet; 215. Baffle; 22. Second spraying unit; 3. Moving mechanism; 31. Slide rail; 32. Sliding platform; 33. Buffer spring; 4. Shell; 41. Water pipe socket; 42. Spraying port; 43. Power socket; 5. Water pipeline; 6. Water pump; 7. Air compressor; 8. Control valve; 9. Central controller; 10. Power supply. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] An embodiment of the present application provides a rainy day simulation device.

[0025] like Figures 1 to 5 As shown, the rainy day simulation device is arranged on a vehicle, and the rainy day simulation device includes a water tank 1, a water pump 6, a spray device 2 and a moving mechanism 3. The moving mechanism 3 and the spray device 2 are both installed on the outside of the vehicle. The spray device 2 is connected to the water tank 1 through a water pipe 5. The spray device 2 is rotatably arranged on the moving mechanism 3. The water pump 6 is used to transport the water stored in the water tank 1 to the spray device 2. The moving mechanism 3 is used to drive the spray device 2 to move.

[0026] The connection method between the rainy weather simulation device and the vehicle can be a detachable connection method. Before the vehicle leaves the factory, when it is necessary to test the rainy weather driving conditions of certain components on the vehicle, the rainy weather simulation device can be installed on the vehicle. After the test, the rainy weather simulation device can be removed from the vehicle to avoid the rainy weather simulation device affecting the subsequent driving of the vehicle.

[0027] The spray device 2 can be installed on the roof of the vehicle, that is, the highest point of the vehicle, to ensure the spray range. The water tank 1 can be the vehicle itself or an additional one. The water pump 6 is arranged in the water pipeline 5, and the water pipeline 5 is respectively connected to the water tank 1 and the spray device 2. The water pump 6 is used to pump the water in the water tank 1 to the spray device 2 through the water pipeline 5, and the spray device 2 sprays water to simulate the rainy day environment. Since the rainy day simulation equipment also includes a moving mechanism 3, the moving mechanism 3 is installed on the roof of the vehicle, the spray device 2 is rotatably connected to the moving mechanism 3, and the moving mechanism 3 can drive the spray device 2 to move relative to the vehicle to change the spray area of ​​the spray device 2. The spray device 2 can rotate relative to the moving mechanism 3 and can also change the spray area. Therefore, in combination with the spray device 2 and the moving mechanism 3, spray areas of different ranges can be formed to simulate the rainy day conditions for vehicle parts (for example, laser radar) in the spray area.

[0028] In an optional embodiment, the installation position of the spray device 2 is determined based on the position of the vehicle parts to be inspected, so that the inspected parts are located in the spray area of ​​the spray device 2. For example, for a laser radar, assuming that the laser radar is installed just above the middle of the front windshield, the spray device 2 can be installed on the roof, and the direction of water spraying is toward the front of the vehicle; assuming that the laser radar is installed at the license plate frame of the trunk, the spray device 2 can be installed on the trunk, and the direction of water spraying is toward the rear of the vehicle.

[0029] The rainy day simulation device of the embodiment of the present application can be set on a vehicle, and water can be pumped from the water tank 1 to the spray device 2 through the water pipe 5. Through the mobile mechanism 3 and the spray device 2, spray areas of different ranges can be formed on the vehicle according to needs to simulate rainy day conditions. Compared with the prior art that requires selecting a longer tunnel to establish a rainfall simulation system separately, the rainy day simulation device of the embodiment of the present application can be directly installed on the vehicle, without any location restrictions, is more convenient to use, and reduces the manpower and material costs required for construction at a specific location.

[0030] Further, see Figure 1 The rainy day simulation device further comprises a housing 4, in which the spray device 2 and the moving mechanism 3 are arranged, and the housing 4 is detachably connected to the vehicle. The housing 4 is provided with a water pipe socket 41 and a spray port 42, respectively, and a water delivery pipeline 5 passes through the water pipe socket 41 and is connected to the spray device 2, and a nozzle of the spray device 2 extends out of the spray port 42 to spray water.

[0031] Please refer to Figure 3 The water pipe socket 41 is provided with a sealing ring and a locking structure, the locking structure is used to close or open the water pipe socket 41, and the sealing ring is used to form a seal between the water pipe 5 and the water pipe socket 41 to prevent water leakage. Among them, the locking structure can be an electric control structure or a mechanical structure.

[0032] Please refer to Figure 1 , Figure 2 and Figure 5 The rainy day simulation device is also provided with a power supply 10, which is arranged in the housing 4 and is used to supply power to other devices. A power socket 43 is also provided on the housing 4 at a position corresponding to the power supply 10, and the socket adopts a buckle design to ensure the stability of the external cable when connected to the power supply 10 when the vehicle is shaking during operation.

[0033] Optionally, the moving mechanism 3 is used to drive the spray device 2 to reciprocate along the width direction of the vehicle.

[0034] In this embodiment, it can be understood that, generally speaking, the length direction of the vehicle is consistent with the driving direction of the vehicle, and the width direction of the vehicle is a direction perpendicular to the driving direction of the vehicle. The moving mechanism 3 can drive the spray device 2 to reciprocate along the width direction of the vehicle, or stop after moving a certain distance to maintain the position of the spray device 2, so as to meet the needs of forming different spraying areas.

[0035] Optionally, the moving mechanism 3 includes a slide rail 31 and a slide platform 32 , the slide rail 31 is fixed to the vehicle along the width direction of the vehicle, the slide platform 32 is installed on the slide rail 31 , and the slide platform 32 can slide relative to the slide rail 31 , and the spray device 2 is rotatably connected to the slide platform 32 .

[0036] Please refer to Figure 1 and Figure 2 The slide rail 31 is fixed on the vehicle, and the extension direction of the slide rail 31 is consistent with the width direction of the vehicle. The sliding platform 32 is slidably installed on the slide rail 31. It can be understood that the sliding platform 32 slides along the slide rail 31, that is, it moves in the width direction of the vehicle relative to the vehicle. The spray device 2 is rotatably connected to the sliding platform 32. While the sliding platform 32 moves together, the spray device 2 can also rotate, and the water spraying position of the spray device 2 relative to the vehicle can be adjusted according to needs.

[0037] The movement between the slide rail 31 and the slide platform 32 can be achieved by various control methods, such as electromagnetic control, hydraulic control, etc.

[0038] Optionally, the moving mechanism 3 also includes a buffer spring 33, two buffer springs 33 are respectively arranged on both sides of the sliding platform 32, one end of the buffer spring 33 is connected to the end of the sliding rail 31, and there is a gap between the other end of the buffer spring 33 and the sliding platform 32, and the extension direction of the buffer spring 33 is consistent with the width direction of the vehicle.

[0039] like Figure 2As shown, two buffer springs 33 are respectively provided at both ends of the slide rail 31. When the sliding platform 32 reciprocates relative to the slide rail 31 in the width direction of the vehicle, there is a process of first decelerating and then accelerating in the opposite direction when sliding to one end and then sliding to the other end. When the sliding platform 32 contacts the buffer spring 33, the buffer spring 33 can play a role of deceleration and buffering, reduce the speed of the sliding platform 32, reduce the speed change when the sliding platform 32 moves in the opposite direction, and facilitate the reciprocating movement of the sliding platform 32. In addition, compared with the method of providing a baffle at the end of the slide rail 31 to prevent the sliding platform 32 from sliding out in the prior art, the buffer spring 33 can reduce the force received by the sliding platform 32 when it collides with the end of the slide rail 31, so as to reduce the damage to the sliding platform 32.

[0040] Optionally, the spray device 2 includes a first spray unit 21 and a second spray unit 22 , the water spray aperture of the spray head of the first spray unit 21 is not adjustable, and the water spray aperture of the spray head of the second spray unit 22 is adjustable.

[0041] Please refer to Figure 1 and Figure 2 The spray device 2 may include a plurality of water spray structures, and the plurality of water spray structures are all rotatably connected to the sliding platform 32. Different water spray structures may be set at different angles relative to the sliding platform 32 to form different spray modes, thereby simulating different rainfall directions on rainy days. For example, the two water spray structures are rotated to intersect with each other, and the sliding platform 32 drives the two water spray structures to swing along the width direction of the vehicle, so that water droplets fall densely and staggered in two different directions at the same time. When the swing frequency reaches a certain level, the rainfall conditions of heavy rain and strong winds can be simulated.

[0042] It should be noted that the types of water spray structures include a first spray unit 21 and a second spray unit 22. The water spray aperture of the first spray unit 21 is not adjustable, and the water spray aperture of the second spray unit 22 is adjustable. In actual use, different numbers of first spray units 21 and second spray units 22 can be set on the spray device 2 according to needs. The water spray aperture of the first spray unit 21 can be set to a standard aperture, and the second spray unit 22 can simulate different rainwater particle sizes and precipitation by adjusting the water spray aperture.

[0043] Optionally, the nozzle of the first spray unit 21 includes a splash plate 211, the splash plate 211 includes a mounting plate 212 and a plurality of splash teeth 213, a water outlet 214 is opened at the center of the mounting plate 212, and a plurality of splash teeth 213 are arranged on the mounting plate 212 around the water outlet 214, and the water spraying direction of the first spray unit 21 is perpendicular to the plate surface of the mounting plate 212.

[0044] Please refer to Figure 4When the first spray unit 21 sprays water, the water flows toward the mounting plate 212 and the water splashing teeth 213, a part of the water flows continuously outward through the water outlet 214, and a part of the water flows is splashed by the mounting plate 212 and the water splashing teeth 213 to form water mist.

[0045] Furthermore, the first spray unit 21 also includes a spoiler 215, which is arranged on a side of the splash plate 211 away from the nozzle of the first spray unit 21, and is used to change the direction of the water flow passing through the splash plate 211 and splashing onto the spoiler 215.

[0046] See also Figure 4 It can be understood that the water flows toward the mounting plate 212 and the water splashing teeth 213, part of the water flows are splashed by the mounting plate 212 and the water splashing teeth 213, and part of the water flows continue to flow out through the water outlet 214. Among the splashed water flows and the water flows flowing out through the water outlet 214, part of the water flows will move away from the vehicle. The spoiler 215 can block this part of the water flows away from the vehicle, restrict the movement direction of the water flows, and make this part of the water flows be reflected back to the direction of the vehicle. Therefore, the spoiler 215 is provided to reduce the waste of water flows.

[0047] Optionally, the rainy day simulation device also includes a control valve 8 and an air compressor 7. The control valve 8 is connected to the water supply pipeline 5 and the spray device 2. The air compressor 7 is connected to the control valve 8. The air compressor 7 is used to pressurize the water flow input into the control valve 8 from the water supply pipeline 5.

[0048] Please see further Figure 2 The rainy day simulation device also includes a central controller 9, a control valve 8 and an air compressor 7. The central controller 9 is electrically connected to the control valve 8, the air compressor 7 and the moving mechanism 3, and can control the operation mode of these structures.

[0049] The water in the water pump 6 is drawn from the water delivery pipe 5 and delivered to the control valve 8. The air compressor 7 compresses the air into the control valve 8 to mix with the water. Then the valve of the control valve 8 is opened, and the water flows into the spray pipe and is sprayed out.

[0050] Combining the air compressor 7, the spray device 2, and the mobile mechanism 3, various rainy day conditions can be simulated, for example:

[0051] The radar on the vehicle is tested to simulate drizzle conditions. In order to make the raindrops finer, the first spray unit 21 is used to spray water, and the ratio of compressed air and water is mixed. The pressure is adjusted to spray water mist. The water spraying time can be set to adjust the amount of water mist retained on the radar window, so as to obtain the point cloud data of the radar in the drizzle weather.

[0052] To simulate normal light rain or moderate rain, the second spray unit 22 may be used to increase the aperture, increase the ratio of water to air, and increase the pressure to further simulate heavy rain scenes.

[0053] The control valve 8 and the air compressor 7 further improve the diversity of rainy day conditions simulated by the rainy day simulation device of the embodiment of the present application.

[0054] The embodiment of the present application also provides a test vehicle, including a vehicle body and the above rainy weather simulation device, wherein the rainy weather simulation device is installed on the top of the vehicle body. Since the technical solution of this embodiment includes all the technical solutions of the above embodiments, it can at least achieve all the technical effects of the above embodiments, which will not be described one by one here.

[0055] Optionally, the test vehicle further includes a radar, which is mounted on the vehicle body and is located within the spray range of the rain simulation device.

[0056] In this embodiment, the test vehicle is equipped with a radar, which is mainly used to test the performance of the radar in a rainy environment. The rainy day simulation device is used to simulate different rainy days, and the water mist sprayed by the spray device 2 of the rainy day simulation device falls within the range from the radar window to the road in front of the vehicle. The tester records the point cloud data information fed back by the radar during the vehicle driving process, and performs data processing and analysis.

[0057] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A rainy day simulation device, characterized in that: The rainy day simulation device is arranged on a vehicle, and the rainy day simulation device includes a water tank, a water pump, a spray device and a moving mechanism. The moving mechanism and the spray device are both installed on the outside of the vehicle. The spray device is connected to the water tank through a water supply pipe. The spray device can be rotatably arranged on the moving mechanism. The water pump is used to transport water stored in the water tank to the spray device, and the moving mechanism is used to drive the spray device to move.

2. The rainy day simulation device according to claim 1, characterized in that: The moving mechanism is used to drive the spray device to reciprocate along the width direction of the vehicle.

3. The rainy day simulation device according to claim 2, characterized in that: The moving mechanism includes a slide rail and a slide platform, the slide rail is fixed to the vehicle along the width direction of the vehicle, the slide platform is installed on the slide rail, and the slide platform can slide relative to the slide rail, and the spray device is rotatably connected to the slide platform.

4. The rainy day simulation device according to claim 3, characterized in that: The moving mechanism also includes a buffer spring, two of which are respectively arranged on both sides of the sliding platform, one end of the buffer spring is connected to the end of the slide rail, and there is a gap between the other end of the buffer spring and the sliding platform, and the extension direction of the buffer spring is consistent with the width direction of the vehicle.

5. The rainy day simulation device according to claim 1, characterized in that: The spray device comprises a first spray unit and a second spray unit. The water spray aperture of the spray head of the first spray unit is not adjustable, and the water spray aperture of the spray head of the second spray unit is adjustable.

6. The rainy day simulation device according to claim 5, characterized in that: The nozzle of the first spray unit includes a splash plate, which includes a mounting plate and a plurality of splash teeth. A water outlet is opened at the center of the mounting plate, and a plurality of splash teeth are arranged on the mounting plate around the water outlet. The water spraying direction of the first spray unit is perpendicular to the plate surface of the mounting plate.

7. The rainy day simulation device according to claim 6, characterized in that: The first spray unit further includes a baffle, which is disposed on a side of the splash plate away from the spray head of the first spray unit, and is used to change the direction of water flow passing through the splash plate and splashing onto the baffle.

8. The rainy weather simulation device according to any one of claims 1 to 7, characterized in that: The rainy day simulation device also includes a control valve and an air compressor. The control valve is connected to the water pipeline and the spray device. The air compressor is connected to the control valve and is used to pressurize the water flow input into the control valve from the water pipeline.

9. A test vehicle, characterized in that: The test vehicle comprises a vehicle body and a rainy weather simulation device as claimed in any one of claims 1 to 8, wherein the rainy weather simulation device is installed on the top of the vehicle body.

10. The test vehicle according to claim 9, characterized in that: The test vehicle further includes a radar, which is installed on the vehicle body and is located within the spray range of the rain simulation device.

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