Device and method for detecting heat balance performance of water-cooling heat dissipation system of motorcycle

Abstract

The invention discloses a device and a method for detecting the heat balance performance of a water-cooling heat dissipation system of a motorcycle. The method comprises the following steps: S1, fixing the motorcycle; s2, adjusting the temperature in the test bin; s3, enabling the motorcycle to run at different speeds by stages and then stop; s4, judging whether all the to-be-simulated environment temperatures are tested or not, if so, entering the step S5, otherwise, selecting any one of the residual to-be-simulated environment temperatures, and returning to the step S2; s5, if the temperature of the engine does not exceed the set value in all the testing processes, the performance of the water-cooling heat dissipation system is considered to be qualified, otherwise, the performance is considered to be unqualified; according to the invention, various motorcycle actual driving environments can be rapidly and comprehensively simulated, so that whether the heat balance performance of the water-cooling heat dissipation system is qualified or not can be efficiently and accurately detected.

Description

Technical Field

[0001] The present invention relates to a motorcycle cooling system, and in particular to a thermal balance performance detection device and method for a motorcycle water cooling system. Background Art

[0002] Whether the motorcycle water cooling system can stably maintain the thermal balance of the engine, that is, whether the maximum temperature of the engine always does not exceed the set value, is related to whether the motorcycle can operate normally. After the motorcycle is assembled, the thermal balance performance of the water cooling system should be tested during actual driving to further determine whether it is qualified. However, it is not convenient to measure during the actual driving of the motorcycle, so corresponding equipment is needed to simulate the actual driving environment for easy testing.

[0003] The Chinese invention application with publication number CN118670744A discloses a high-performance motorcycle detection system and method thereof, which has a test platform, a front wheel adjustment device is arranged on the test platform, a fan rack is arranged on both sides of the front wheel adjustment device, a fan is arranged on the fan rack, and a dynamometer is arranged at one end of the test platform, and the dynamometer includes a dynamometer wheel. The invention is beneficial in that a dynamometer is arranged, and a front wheel adjustment device is arranged at one end of the dynamometer, the front wheel adjustment device can clamp the front wheel of the motorcycle during the motorcycle test, and can adjust the front and rear position of the motorcycle so that the rear wheel of the motorcycle just falls on the dynamometer wheel, fan racks are arranged on both sides of the front wheel adjustment device, the fan racks are connected to the fan, and the fan racks can be used to adjust different angles of the fan, and the fan blows air to the motorcycle during the motorcycle test to simulate the real use environment of the motorcycle, so that the detection data of the motorcycle is closer to reality.

[0004] The above-mentioned device can only simulate the wind during driving, but cannot simulate different ambient temperatures. It is necessary to wait for the natural ambient temperature to change to conduct testing. It is impossible to simulate multiple scenarios in a short time to test whether the thermal balance performance of the water cooling system of the motorcycle in different driving environments can meet the standards; secondly, although the above-mentioned device can simulate the wind during the actual driving of the motorcycle, and the fan can rotate to blow at the motorcycle from different angles, it can only blow at the motorcycle from the front, and cannot blow at the motorcycle from the rear to simulate wind in different wind directions; if the above-mentioned device is not used but the driving test is conducted in the actual environment, it will be affected by various factors such as traffic conditions or weather conditions and it will be impossible to complete multiple environmental tests in a short time. The overall test cycle is long and the efficiency is low. Summary of the invention

[0005] Purpose of the invention: The purpose of the present invention is to provide a motorcycle water cooling and heat dissipation system thermal balance performance detection device and method which can quickly and comprehensively simulate a variety of actual motorcycle driving environments so as to efficiently and accurately detect whether the thermal balance performance of the water cooling and heat dissipation system is qualified.

[0006] Technical solution: The thermal balance performance detection device of the motorcycle water cooling system described in the present invention includes a front wheel adjustment device and a fan, which are arranged in a test chamber. The test chamber is also provided with a follower device that fits the rear wheel of the motorcycle and rotates therewith, a temperature control device for controlling the temperature of the test chamber, and a temperature measuring device for detecting the temperature of the motorcycle engine; the fan can rotate around the motorcycle.

[0007] Based on the above technical solution, the front wheel of the motorcycle is fixed by the front wheel adjustment device, and the follow-up device is set to enable the rear wheel of the motorcycle to operate normally to simulate the normal driving state of the motorcycle. The above devices are all arranged in the test chamber, and a temperature control device is also provided in the test chamber, which can adjust the temperature of the entire chamber to better simulate different temperature environments, and can quickly simulate various different ambient temperatures without waiting for the natural ambient temperature to change. During the driving of the motorcycle, in addition to the wind formed in front due to the relative movement of the motorcycle and the air, there is also natural wind in a specific direction in nature. This wind does not necessarily blow towards the motorcycle from the front, but may blow towards the motorcycle from the side or rear, especially from the rear or When the wind blows towards the motorcycle from the side and rear, it may not only be detrimental to the heat dissipation, but will to a certain extent offset the wind blowing from the front of the motorcycle, reducing the heat dissipation effect of the water cooling system. If the fan can rotate around the motorcycle, it can simulate the wind blowing from the front and the natural wind blowing from other directions at the same time. Under the premise of quickly and more comprehensively simulating the actual driving state of the motorcycle, the temperature of the engine is detected by the temperature measuring device. According to the temperature, it can be judged whether the water cooling system has achieved thermal balance so that the upper limit of the engine temperature is maintained at a stable value and does not exceed the set value, so as to judge whether its thermal balance performance is qualified. Comprehensive evaluation can be made based on data from different environments to obtain more accurate test results.

[0008] The method for detecting the thermal balance performance of a motorcycle water cooling and heat dissipation system of the present invention comprises the following steps: S1. Fix the front wheel of the motorcycle on the front wheel adjustment device and fit the rear wheel to the follow-up device; S2. The temperature in the test chamber is adjusted by the temperature control device according to the ambient temperature to be simulated; S3, subjecting the motorcycle to two consecutive tests, each test being divided into multiple stages of driving, and the fan located in front of the motorcycle adjusting the wind speed according to the driving speed of the motorcycle; and detecting whether the engine temperature exceeds the set value through a temperature measuring device throughout the whole process; S4, determining whether all the ambient temperatures to be simulated have been tested, if so, proceeding to step S5, otherwise selecting any one of the remaining ambient temperatures to be simulated and waiting for the engine to cool to the newly selected ambient temperature before returning to step S2; S5. If the engine temperature never exceeds the set value during all tests, the water cooling system is considered to be qualified, otherwise it is considered to be unqualified.

[0009] Based on the above method, a variety of different ambient temperatures can be simulated through the temperature control device, and different driving environments can be quickly simulated in a short time without waiting too long to test different ambient temperatures and prolonging the test cycle; and the motorcycle is tested twice in succession at different speeds in stages under each ambient temperature. This is an effective method that can accurately test whether the thermal balance performance of the water cooling system is qualified in a short time after multiple tests and verification; all ambient temperatures to be simulated must be tested in order to expand the test sample and improve the accuracy of the test results.

[0010] Preferably, in step S3, the motorcycle travels from front to back in four stages, including a first idling stage, a first driving stage, a second idling stage and a second driving stage, and the driving speed of the second driving stage is not less than the driving speed of the first driving stage.

[0011] Driving is divided into four stages. The first idling stage is equivalent to the state when the motorcycle is just started during actual driving. Then it drives at a relatively low speed for a period of time and then drives at idle speed. Finally, it drives at high speed. This is not only in line with the actual driving situation, but also can make the engine run at high power for a period of time. It can detect whether the performance of the water cooling system is qualified under conditions that are more in line with the actual driving situation, and the result is more practical. If the test is always carried out at the extreme maximum driving speed, the failure rate of the thermal balance performance test of the water cooling system may increase, but it is out of touch with reality. Optimizing the water cooling system under a high failure rate will unnecessarily increase manufacturing R&D costs, because when driving a motorcycle normally, it will not drive at the maximum speed from the beginning to the end. Testing under extreme conditions will not be accurate enough from the perspective of actual use.

[0012] Preferably, the total driving time of the four stages is 80 minutes.

[0013] This time is chosen to obtain accurate test results while being brief enough.

[0014] Preferably, in step S3, the position and wind speed of the wind fan other than in front of the motorcycle are adjusted according to different natural wind simulation scenarios.

[0015] Adjusting the position and wind speed of the fan other than in front of the motorcycle in conjunction with the fan in front of the motorcycle can better simulate the airflow conditions during motorcycle driving in the presence of natural wind.

[0016] Beneficial effects: Compared with the prior art, the present invention has the following significant beneficial effects: by placing the motorcycle and related tests in a test chamber, and arranging a temperature control device in the test chamber to simulate different ambient temperatures, there is no need to wait for changes in natural weather, and tests in various environments can be completed in a short time, thereby improving test efficiency; and testing in stages at different driving speeds can better fit the actual driving state and obtain more accurate test results, and the test samples are sufficiently rich to further ensure the accuracy of the results. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the overall structural diagram of the device; Figure 2 It is a structural schematic diagram of the front wheel adjustment device; Figure 3 is a schematic diagram of the structure of the fan; Figure 4 Schematic diagram of the structure of the collection device. DETAILED DESCRIPTION

[0018] As shown in the figure, in order to clearly show the structure in the test chamber 3, the side walls and the top cover of the test chamber 3 are removed from the figure, and the actual test chamber 3 is a closed chamber.

[0019] The motorcycle water cooling system thermal balance performance detection device described in the present invention comprises a front wheel adjustment device 1 and a plurality of fans 2, wherein the front wheel adjustment device 1 and the fans 2 are arranged in a test chamber 3, and the test chamber 3 is also provided with a follower device 4 that fits the rear wheel of the motorcycle and rotates therewith, a temperature control device 5 for controlling the temperature of the test chamber 3 and a temperature measuring device for detecting the temperature of the motorcycle engine; the fans 2 can rotate around the motorcycle.

[0020] The front wheel adjustment device 1 can adopt the same structure as in CN118670744A, or other structures that can clamp the front wheel of the motorcycle and move it forward and backward, such as a driving device 1-1, two clamping plates 1-2 and a support plate 1-3, the driving device 1-1 and the clamping plates 1-2 are both arranged on the support plate 1-3, one of the clamping plates 1-2 is fixed on the support plate 1-3, and the other clamping plate 1-2 is connected to the driving device 1-1 and can slide left and right on the support plate 1-3; the support plate 1-3 is slidably connected to the bottom of the test chamber 3, and can be specifically A slide rail is set at the bottom of the test chamber 3, and a slide groove matching the slide rail is provided at the bottom of the support plate 1-3, and a locking mechanism is provided to lock it on the slide rail. There are a large number of locking mechanisms in the existing slide rail connection method, and its structure is not repeated; the driving device 1-1 can adopt a cylinder or an electric telescopic rod, etc. When in use, the driving device 1-1 and the independent clamping plate 1-2 are slid forward and backward to the position of the front wheel of the motorcycle, and then the driving device 1-1 drives the connected clamping plate 1-2 and the independent clamping plate 1-2 to approach each other to clamp the front wheel. After the test is completed, the two can be separated.

[0021] The fan 2 is installed on a movable vehicle, and a circle of circular track is provided at the bottom of the test chamber 3. The front wheel adjustment device 1 and the follower device 4 are located in the circular track, and the motorcycle to be tested is also located in the circular track; the movable vehicle is arranged on the circular track and can move along the circular track, thereby driving the fan 2 to rotate around the motorcycle. The movable vehicle and the circular track can adopt the track vehicle structure commonly used in the prior art; when in use, a movable vehicle can be fixed in front of the motorcycle, and the fan on the movable vehicle can blow air from the front direction of the motorcycle, and another movable vehicle can take another fan to a suitable position to simulate natural wind in different directions; an exhaust device is provided in the test chamber 3 to prevent the fan 2 from forming turbulence in the chamber and affecting the test results; in addition to adopting the above structure to make the fan rotate around the motorcycle, four self-locking universal wheels can be provided at the bottom of the fan 2 to realize the above functions, Figure 1 and Figure 3 This structure is shown, and the structure of the circular track is not shown in the accompanying drawings.

[0022] The end of the fan 2 facing the motorcycle can also be provided with a wind collecting hood 2-1 for concentrating the airflow. The wind collecting hood 2-1 is equivalent to a pipe, and can be arranged so that the pipe diameter is larger at one end close to the fan 2 and smaller at the other end.

[0023] The following device 4 includes a roller wheel detachably connected to the bottom of the test chamber 3 .

[0024] The temperature control device 5 may be an air conditioner, or a temperature regulating plate may be provided inside the test chamber 3. These are also conventional prior arts, and their structures will not be described in detail.

[0025] The temperature measuring device is connected to a water temperature sensor at the position of the engine cylinder head to detect the temperature of the engine. A motorcycle engine equipped with a water cooling system will be equipped with an externally connectable water temperature sensor at the cylinder head position.

[0026] The test chamber 3 is provided with a collecting device 6 for collecting motorcycle exhaust gas, and the collecting device 6 includes a gas collecting pipe 6-1 and a gas storage chamber 6-2. The gas collecting pipe 6-1 is connected to the motorcycle exhaust pipe and the gas storage chamber 6-2.

[0027] The test chamber 3 is provided with a speed control device for controlling the speed of the rear wheel of the motorcycle. The speed control device can adopt a support, a connecting ring is fixed on the top of the support, a swivel is rotatably connected inside the connecting ring, and the swivel can be mounted on the throttle control handle of the motorcycle. The swivel is controlled to rotate by a stepper motor. The stepper motor can accurately control the rotation angle of the swivel, and then control the power of the motorcycle engine, thereby realizing the control of the speed of the rear wheel of the motorcycle; the actual rotation speed of the rear wheel of the motorcycle can be directly obtained from the instrument panel.

[0028] The test chamber 3 is provided with a pressure device for pressing the motorcycle to the ground, and the pressure device includes a pneumatic or electric telescopic rod, which is fixed to the top of the test chamber 3. The bottom of the telescopic rod is provided with an abutment plate that matches the motorcycle seat cushion. When the telescopic rod is extended, the abutment plate squeezes the motorcycle to simulate the state of the driver pressing on the motorcycle.

[0029] The method for detecting the thermal balance performance of a motorcycle water cooling and heat dissipation system of the present invention comprises the following steps: S1. Fix the front wheel of the motorcycle on the front wheel adjusting device 1, and fit the rear wheel to the follow-up device 4.

[0030] S2. The temperature control device 5 adjusts the temperature in the test chamber 3 according to the ambient temperature to be simulated.

[0031] S3, the motorcycle is driven in stages at different speeds and then stops, and the fan 2 located in front of the motorcycle adjusts the wind speed according to the driving speed of the motorcycle; the temperature measuring device is used to detect whether the engine temperature exceeds the set value throughout the process; The motorcycle travels in four stages, which are, from front to back, the first idling stage, the first driving stage, the second idling stage and the second driving stage. The four stages can be carried out in 10 minutes, 30 minutes, 10 minutes and 30 minutes respectively, and the total driving time of the four stages is 80 minutes; the first idling stage and the second idling stage are driven at idle speed; if the maximum driving speed of the motorcycle is not less than 80km / h, then the first driving stage is driven at 80km / h, and the second driving stage is driven at the maximum speed of the motorcycle, otherwise, the first driving stage and the second driving stage are both driven at the maximum speed; 80km / h is selected because this speed is the normal driving speed of the motorcycle in the city, and testing at this speed has wider applicability; in addition to the fan in front of the motorcycle, the position and wind speed of the fan 2 outside the front of the motorcycle can also be adjusted according to different natural wind simulation scenarios; the set value of the engine temperature is empirically set as a constant.

[0032] S4, determine whether all the ambient temperatures to be simulated have been tested, if so, proceed to step S5, otherwise select any one from the remaining ambient temperatures to be simulated and wait for the engine to cool to the newly selected ambient temperature before returning to step S2.

[0033] S5. If the engine temperature never exceeds the set value during all the tests, the water cooling system is considered to have qualified thermal balance performance, that is, it can stably maintain the thermal balance state of the engine, otherwise it is considered to be unqualified; the present invention is used to detect the thermal balance performance of the water cooling system. Even if visible problems such as leakage occur during the test, it only reflects that the water cooling system has other quality problems. However, no matter what problems occur, as long as it can maintain a stable thermal balance, its thermal balance performance is considered to be qualified.

Claims

1. A thermal balance performance detection device for a motorcycle water cooling system, comprising a front wheel adjustment device (1) and a plurality of fans (2), characterized in that: The front wheel adjustment device (1) and the fan (2) are arranged in a test chamber (3). The test chamber (3) is also provided with a follower device (4) that fits the rear wheel of the motorcycle and rotates therewith, a temperature control device (5) for controlling the temperature of the test chamber (3), and a temperature measuring device for detecting the temperature of the motorcycle engine; the fan (2) can rotate around the motorcycle.

2. A method for detecting the thermal balance performance of a motorcycle water cooling system, characterized in that: The following steps are involved: S1, fixing the front wheel of the motorcycle on the front wheel adjustment device (1), and fitting the rear wheel to the follower device (4); S2, adjusting the temperature in the test chamber (3) by the temperature control device (5) according to the ambient temperature to be simulated; S3, subjecting the motorcycle to two consecutive tests, each test being divided into multiple stages of driving, and the fan (2) located in front of the motorcycle adjusts the wind speed according to the driving speed of the motorcycle; and a temperature measuring device is used to detect whether the engine temperature exceeds a set value during the whole process; S4, determining whether all the ambient temperatures to be simulated have been tested, if so, proceeding to step S5, otherwise selecting any one of the remaining ambient temperatures to be simulated and waiting for the engine to cool to the newly selected ambient temperature before returning to step S2; S5. If the engine temperature never exceeds the set value during all tests, the thermal balance performance of the water cooling system is considered qualified, otherwise it is considered unqualified.

3. A method for detecting thermal balance performance of a motorcycle water cooling system according to claim 2, characterized in that: In step S3, each test of the motorcycle is divided into four stages from front to back, including a first idling stage, a first driving stage, a second idling stage and a second driving stage, and the driving speed of the second driving stage is not less than the driving speed of the first driving stage.

4. A method for detecting thermal balance performance of a motorcycle water cooling system according to claim 3, characterized in that: The total driving time of the four stages is 80 minutes.

5. A method for detecting thermal balance performance of a motorcycle water cooling system according to claim 4, characterized in that: If the maximum speed of the motorcycle is not less than 80 km / h, the motorcycle shall travel at a constant speed of 80 km / h in the first driving stage, and at the maximum speed of the motorcycle in the second driving stage; otherwise, the motorcycle shall travel at a constant speed at the maximum speed of the motorcycle in both the first driving stage and the second driving stage.

6. A method for detecting thermal balance performance of a motorcycle water cooling system according to claim 2, characterized in that: In step S3, the position and wind speed of the fan (2) other than in front of the motorcycle are adjusted according to different natural wind simulation scenarios.

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