ABS (Acrylonitrile Butadiene Styrene) test pavement

Abstract

The utility model relates to the technical field of automobile function detection, in particular to an ABS test pavement, which comprises a pavement body, the pavement body is arranged on a vehicle test runway, a nozzle for spraying water is arranged on the test pavement, the nozzle is connected with a water pump through a pipeline, a water collecting ditch is arranged on the periphery of the pavement body, and the water collecting ditch is connected with a drainage ditch. The ABS testing device can visually simulate the working scene of the ABS, is adaptive to the driving habit of a human body, and is simple in structure, low in cost and reliable in testing result.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile function detection, and more specifically, to an ABS test road surface. Background Art

[0002] During vehicle use, emergency braking may be necessary. If the vehicle is driving on a slippery road, the tires may lock, preventing the wheels from turning and causing them to slide directly on the road. This increases the braking distance and makes the vehicle more susceptible to swerving or skidding, compromising driving safety. Therefore, it is necessary to install an ABS system on the vehicle. The ABS system is a complex system that integrates hardware and software, and is crucial for driving safety. It is crucial to ensure that the ABS function does not malfunction due to manufacturing factors during production on the production line. Therefore, the ABS system must be tested after the vehicle is completed. Existing technology generally uses dedicated testing equipment to test the ABS system. During this process, the vehicle is generally stationary and cannot fully adapt to actual vehicle usage and driving habits on real roads. Furthermore, the equipment lacks flexibility and is prone to wear and tear. When multiple vehicle models are produced on the same line, equipment parameters must be adjusted to suit each model, increasing equipment commissioning time and testing costs.

[0003] There is a Chinese invention with the publication number CN111912630B, which discloses an in-the-loop simulation dual-wheel test bench and test method for ABS braking performance testing, in which the drive and inertia simulation system simulates the vehicle's driving inertia and outputs it to the comprehensive performance testing system; the comprehensive performance testing system simulates the vehicle's vertical force by arranging wheels on each side of the vehicle's front and rear axles in front and behind the rotation direction of the roller, and controls the pressure between the wheels and the roller. The wheels are equipped with brakes and sensors for detecting wheel status; a master cylinder pedal actuator, brakes corresponding to the wheels on the other side of the vehicle's front and rear axles, brake wheel cylinder pressure sensors, and a wheel speed simulation mechanism are set on the electronic control system HIL test platform. The master cylinder pedal actuator is connected to the ABS to be tested and then connected to the four brakes respectively to realize simulated braking control of the ABS to be tested; a precise water film control system sprays water between the roller and the wheels to simulate slippery road conditions.

[0004] In the above technical solution, the drive and inertia simulation system simulates the vehicle's driving inertia output, and fails to take into account the ABS system malfunction caused by factors in the vehicle's manufacturing process. At the same time, the wheels are placed on rollers, and the position of the wheels has never changed during the entire process. It cannot fully adapt to the actual use of the car and is different from the actual driving process. Utility Model Content

[0005] In order to solve the problem that the above technical solutions cannot fully adapt to the actual usage of automobiles, the utility model provides an ABS test road surface, which can intuitively simulate the working scene of the ABS system, adapt to human driving habits, and has a simple structure and low cost, ensuring reliable test results.

[0006] In order to solve the above technical problems, the utility model provides an ABS test pavement, including a pavement body, which is arranged on a vehicle test track. A nozzle for spraying water is provided on the test pavement, and the nozzle is connected to a water pump through a pipe. A water collection ditch is provided around the pavement body, and the water collection ditch is connected to a drainage ditch.

[0007] In this technical solution, the pavement itself is placed on a vehicle test track, allowing it to be tested simultaneously with other on-road vehicle tests. To test, the vehicle simply drives toward the pavement itself at a certain speed. Once inside the pavement itself, the vehicle brakes and activates the ABS system. Ultimately, the ABS system is tested based on the vehicle's trajectory on the pavement itself and the ABS system data collected by the vehicle's internal sensors. After the test is completed, the vehicle can directly leave the pavement itself for the next test or move off the test track, allowing the next vehicle to enter the pavement itself for ABS testing. This streamlines ABS system testing and improves testing efficiency. The entire testing process is a completely realistic vehicle driving scenario, with human drivers adapting to human driving habits and ensuring the accuracy of test results. Furthermore, the pavement itself is configured according to road specifications, adapting to all vehicles capable of traveling on ordinary roads. This allows for testing the ABS systems of vehicles of varying specifications without requiring any additional adjustments or debugging, ensuring universal applicability. The pavement itself can simulate the operation of the ABS system when braking on dry roads, as well as simulate slippery road conditions such as rainy days for ABS system testing. The pavement itself is also equipped with nozzles for spraying water. These nozzles spray water onto the pavement's upper surface, creating a film of water that makes the road slippery. This film maintains a certain thickness to reduce friction and test the ABS system's performance in slippery conditions. The nozzles are connected via pipes to a water pump, which powers the water, pumping it into the nozzles and discharging it onto the pavement itself. Ditches surround the pavement itself, collecting excess rainwater and preventing it from spilling onto the pavement itself and impacting other test items on the vehicle test track. These drains are connected to drainage channels, allowing excess water to drain through when the drainage channels become excessive.

[0008] Preferably, the pavement body includes a reinforced concrete layer, an epoxy resin mortar layer is provided above the reinforced concrete layer, and a basalt layer is provided on the epoxy resin mortar layer.

[0009] Preferably, the basalt layer comprises a plurality of closely paved basalt bricks.

[0010] Preferably, gaps are provided between adjacent basalt bricks to form water collection troughs.

[0011] Preferably, a cross-shaped groove is further provided on the upper surface of the basalt brick, and the four ends of the cross-shaped groove are respectively connected to the water collecting trough.

[0012] Preferably, the water spraying end of the nozzle is arranged at the bottom of the water collecting tank.

[0013] Preferably, there are multiple nozzles, and the multiple nozzles are arranged along the length direction of the pavement body.

[0014] Preferably, the pipeline is buried below the pavement body, the pipeline is arranged along the length direction of the pavement body, and a branch pipe connected to the nozzle is provided on the pipeline.

[0015] Preferably, a water level sensor is further provided on the upper surface of the pavement body, and the water level sensor is electrically connected to the water pump.

[0016] Preferably, the wall of the drainage ditch is 3 to 3.5 mm higher than the upper surface of the pavement body.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: in the present invention, by providing a pavement body and allowing the vehicle to brake on the pavement body, the working scene of the ABS system can be intuitively simulated, which is adapted to the driving habits of the human body, and has a simple structure, low cost, and reliable test results. The pavement body is adapted to all vehicles that can travel on ordinary roads, does not require any additional adjustment and debugging, has universality, and can continuously perform ABS system tests without intervals, thereby improving test efficiency. A nozzle for spraying water is also provided on the pavement body, which can simulate scenes of slippery roads such as rainy days. Drainage ditches are provided around the pavement body, which are used to collect excess rain sprayed to prevent excess water from spreading outside the pavement body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a top view of the ABS test road surface of the utility model;

[0019] Figure 2 This is a half-section view of the ABS test road surface of the present invention along the width direction;

[0020] Figure 3 It is a partial cross-sectional view of the pavement body along the length direction in the ABS test pavement of the utility model;

[0021] Figure 4 It is a schematic diagram of the basalt layer in the ABS test road surface of the utility model.

[0022] In the attached figure: 1. pavement body; 2. sprinkler; 3. drainage ditch; 4. pipe; 5. water level sensor; 6. drainage ditch; 11. reinforced concrete layer; 12. epoxy resin mortar layer; 13. basalt layer; 131. basalt brick; 132. drainage trough; 133. cross-shaped groove. DETAILED DESCRIPTION

[0023] The drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate the embodiments, some components in the drawings may be omitted, enlarged, or reduced in size, and do not represent actual product dimensions. Those skilled in the art will understand that some well-known structures and their descriptions may be omitted from the drawings. The positional relationships depicted in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0024] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0026] Example 1

[0027] like Figure 1As shown, an ABS test pavement comprises a pavement body 1, which is installed on a vehicle test track. The test pavement body 1 is equipped with a nozzle 2 for spraying water, which is connected to a water pump via a pipe 4. The pavement body 1 is surrounded by water collection ditches 3, which are connected to drainage ditches 6. The pavement body 1 is installed on the vehicle test track and can be tested simultaneously with other on-road vehicle tests. When testing is required, the vehicle is simply driven toward the pavement body 1 at a certain speed. Once the vehicle enters the pavement body 1, the brakes are applied and the ABS system is activated. Finally, the ABS system is tested based on the vehicle's motion trajectory on the pavement body 1 and the sensors inside the vehicle. After the test is completed, the vehicle can directly leave the pavement body 1 for the next test or move off the test track. The next vehicle can then enter the pavement body 1 for ABS system testing. This allows for streamlined ABS system testing, improving testing efficiency. The entire testing process is a completely realistic vehicle driving scenario, with human drivers adapting to human driving habits, ensuring the accuracy of the test results. Furthermore, the pavement body 1 is configured according to road specifications and is compatible with all vehicles capable of traveling on standard roads. This allows for testing the ABS systems of vehicles of varying specifications without requiring any additional adjustments or debugging, ensuring universal applicability. The pavement body 1 can simulate the operation of the ABS system during braking on dry roads, as well as simulate slippery road conditions such as rainy days for ABS testing. The pavement body 1 is also equipped with a water spray nozzle 2. This nozzle sprays water onto the upper surface of the pavement body 1, creating a film of water that makes the road slippery. This film maintains a certain thickness to reduce friction and test the ABS system's performance in slippery conditions. The nozzle 2 is connected to a water pump via a pipe. The pump powers the water, pumping it into the nozzle 2 and discharging it onto the pavement body 1. Drains 3 are located around the perimeter of the pavement body 1 to collect excess rainwater, preventing it from spilling outside the pavement body 1 and potentially impacting other tests on the vehicle test track. The water collecting ditch 3 is connected to the drainage ditch 4 . When the amount of water in the water collecting ditch 3 is too large, the excess water can be discharged through the drainage ditch 4 .

[0028] like Figure 3As shown, the pavement structure 1 includes a reinforced concrete layer 11, an epoxy resin mortar layer 12 disposed above the reinforced concrete layer 11, and a basalt layer 13 disposed above the epoxy resin mortar layer 12. The basalt layer 13 is made of basalt material and has high hardness and density, making it less susceptible to cracks and potholes, thereby extending the service life of the pavement structure 1. If the pavement structure 1 were entirely made of basalt, manufacturing costs would increase, and cracks and potholes would only occur on the surface of the pavement structure 1. Therefore, only one basalt layer 13 is required on the upper surface of the pavement structure 1. Below this basalt layer 13 is the reinforced concrete layer 11 to withstand the pressure of vehicle traffic. Between the reinforced concrete layer 11 and the basalt layer 13 is an epoxy resin mortar layer 12. The epoxy resin mortar 12 is a high-viscosity slurry made from a mixture of epoxy resin and quartz sand, used to bond the reinforced concrete layer 11 and the basalt layer 13.

[0029] like Figure 4 As shown, the basalt layer 13 is formed by closely paving a plurality of basalt bricks 131. If the basalt layer 13 is paved with a whole piece of basalt, on the one hand, the procurement cost of basalt with an area that is too large is high and it is not easy to install. On the other hand, when cracks and potholes appear on the upper surface of the pavement body 1 during use, the entire basalt layer 13 can only be replaced, and the replacement cost is relatively high. Therefore, the basalt layer 13 is formed by closely paving a plurality of basalt bricks 131. Compared with a whole piece of large-area basalt, the basalt bricks 131 achieve the same use effect at a lower cost and are easier to install and transport. On the other hand, when cracks and potholes appear on the upper surface of the pavement body 1, it is only necessary to replace the basalt bricks 131 at the corresponding position, and there is no need to replace the entire basalt layer 13.

[0030] like Figure 4 As shown, adjacent basalt bricks 131 are separated by gaps to form water collecting troughs 132. The water collecting troughs 132 have the functions of draining and collecting water, so that the water film formed by spraying on the upper surface of the pavement body 1 is more evenly distributed.

[0031] like Figure 4 As shown, the upper surface of the basalt brick 131 is also provided with a cross-shaped groove 133, and the four ends of the cross-shaped groove 133 are respectively connected to the water collection tank 132. The cross-shaped groove 133 has the function of collecting and draining water, ensuring that the water sprayed from the nozzle is not only collected on the basalt brick 131 near the nozzle 2, but can flow to all parts of the basalt layer 13 through the cross-shaped groove 133 and the water collection tank 132 connected to the cross-shaped groove 133, ensuring that the same thickness of water film can be formed everywhere on the basalt layer 13, ensuring the reliability of the test.

[0032] Example 2

[0033] This embodiment is similar to the above embodiment 1, except that Figure 1 As shown, the water spray end of nozzle 2 is located at the bottom of water collection tank 132. During ABS system testing, the vehicle under test will roll over the upper surface of basalt brick 131. The bottom of water collection tank 132 is lower than the upper surface of basalt brick 131. Positioning the water spray end of nozzle 2 at the bottom of water collection tank 132 protects nozzle 2 from being damaged by the vehicle without affecting its normal water spraying.

[0034] like Figure 1 As shown, multiple nozzles 2 are provided, and multiple nozzles 2 are provided along the length direction of the pavement body 1. The multiple nozzles 2 provided along the length direction of the pavement body 1 improve the spraying efficiency on the one hand, and ensure that all parts of the pavement body 1 can be sprayed evenly on the other hand.

[0035] like Figure 2 As shown, pipe 4 is buried beneath the pavement body 1, extending along its length. Branch pipes are provided on pipe 4, connecting to nozzles 2. The pavement body 1 serves to disperse road pressure, and burying pipe 4 beneath the pavement body 1 prevents damage during testing. Pipe 4 extends along the length of the pavement body 1, aligning with the arrangement of nozzles 2. Branch pipes are provided on pipe 4, connecting to nozzles 2 and supplying water to them.

[0036] Example 3

[0037] This embodiment is similar to the above embodiment 1, except that Figure 1 As shown, the upper surface of the pavement body 1 is also provided with a water level sensor 5, which is electrically connected to the water pump. This sensor senses the water level on the pavement body 1 and controls the water pump to ensure the water level remains at an appropriate level. When the water level on the pavement body 1 falls below a set value, the sensor controls the pump to spray water onto the pavement body 1. When the water level reaches the set value, the sensor stops the pump, preventing water waste. This process achieves automated control, eliminating the need for human intervention and reducing the workload.

[0038] like Figure 2 As shown, the walls of the drainage ditch 3 are 2.5 to 3.5 mm higher than the upper surface of the pavement body 1. Based on testing requirements, a water film of approximately 3 mm is required on the upper surface of the pavement body 1. The walls of the drainage ditch 3 are set 3 to 3.5 mm higher than the upper surface of the pavement body 1 to ensure that a 3 mm water film remains on the upper surface of the pavement body 1.

[0039] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An ABS test road surface, characterized in that: The invention comprises a pavement body (1), the pavement body (1) being arranged on a vehicle test track, a nozzle (2) for spraying water being arranged on the pavement body (1), the nozzle (2) being connected to a water pump via a pipe (4), a water collecting ditch (3) being arranged around the pavement body (1), and the water collecting ditch (3) being connected to a drainage ditch (6).

2. The ABS test road surface according to claim 1, characterized in that: The pavement body (1) comprises a reinforced concrete layer (11), an epoxy resin mortar layer (12) is provided above the reinforced concrete layer (11), and a basalt layer (13) is provided on the epoxy resin mortar layer (12).

3. The ABS test road surface according to claim 2, characterized in that: The basalt layer (13) comprises a plurality of basalt bricks (131) that are closely laid.

4. The ABS test road surface according to claim 3, characterized in that: Adjacent basalt bricks (131) are spaced apart with gaps to form water collecting troughs (132) for collecting water.

5. The ABS test road surface according to claim 4, characterized in that: The upper surface of the basalt brick (131) is further provided with a cross-shaped groove (133), and the four ends of the cross-shaped groove (133) are respectively connected to the water collecting trough (132).

6. The ABS test road surface according to claim 4, characterized in that: The water spraying end of the nozzle (2) is arranged at the bottom of the water collecting tank (132).

7. The ABS test road surface according to claim 1, characterized in that: A plurality of the nozzles (2) are provided, and the plurality of nozzles (2) are arranged along the length direction of the pavement body (1).

8. The ABS test road surface according to claim 1, characterized in that: The pipeline (4) is buried below the pavement body (1), the pipeline (4) is arranged along the length direction of the pavement body (1), and a branch pipe connected to the nozzle (2) is provided on the pipeline (4).

9. The ABS test road surface according to claim 1, characterized in that: A water level sensor (5) is also provided on the upper surface of the pavement body (1), and the water level sensor (5) is electrically connected to the water pump.

10. The ABS test road surface according to claim 1, characterized in that: The wall of the water collecting ditch (3) is 3 to 3.5 mm higher than the upper surface of the road surface body (1).

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