Automobile motor simulation complex working condition based assembly performance test system and method

Abstract

This invention relates to the field of motor simulation technology, specifically disclosing a system for simulating complex operating conditions of an automotive motor assembly performance test system. The system includes a frame, a bottom clamp fixed to the bottom left side of the frame, a top clamp positioned above the bottom clamp, a hysteresis dynamometer mounted on the top right side of the frame, and a frame mounted on the upper left side of the frame. The performance test system also includes a temperature control component housed within the frame. The temperature control component includes a protective enclosure housed within the frame, with the automotive motor located inside the protective enclosure. Through the coordination of these structures, cold or hot air can be uniformly introduced into the cavities inside multiple bottom and top covers via an air supply component. This allows the introduced cold or hot air to be evenly sprayed onto various areas of the automotive motor surface through uniformly spaced air jets within the cavities, thereby improving the temperature uniformity of various areas of the automotive motor and thus enhancing the accuracy of simulating the operation of the automotive motor under different temperature conditions.

Description

Technical Field

[0001] This invention relates to the field of motor simulation technology, and in particular to a system and method for testing the performance of automotive motors under complex operating conditions. Background Technology

[0002] Simulated testing of electric motors for new energy vehicles is a core step in ensuring their performance, safety, reliability, and durability, which directly affects the competitiveness of the entire vehicle and user trust. Therefore, it is necessary to conduct simulated complex working condition tests on electric motors during the research and production stages.

[0003] my country has a vast territory and a wide range of temperatures. In winter, the extreme low temperature in Mohe can reach -50℃, while in the hot summer, the extreme high temperature in Turpan can reach above 49℃. In order to test the operation of the car motor under different temperature conditions, it is necessary to simulate the operation of the motor under different temperature conditions.

[0004] For example, the "Test Device for a New Energy Vehicle Motor" with publication number "CN118731688A" uses a lifting control cylinder to move a temperature control cover, placing it over the outside of the motor under test. Furthermore, a low-temperature controller regulates the temperature, and a high-temperature controller controls the heating element to regulate the temperature, allowing the internal temperature of the cover to be adjusted between high and low temperatures for performance testing of the motor under test at different temperatures. While this solution allows for temperature adjustment via a low-temperature controller and heating element, in actual testing, the fixed installation positions of the cooling and heating components result in uneven temperatures between the areas of the motor far from and near these components. This affects the accuracy of simulating the motor's operation under different temperatures. Summary of the Invention

[0005] The purpose of this invention is to provide an assembly performance testing system based on simulating complex operating conditions of an automotive motor. This system can uniformly input cold or hot air into the cavities inside multiple bottom and top covers via an air supply assembly. The incoming cold or hot air is then evenly sprayed onto various areas of the automotive motor surface through uniformly opened jet holes within the cavities. This improves the temperature uniformity of various areas of the automotive motor, thereby enhancing the accuracy of simulating the operation of the automotive motor under different temperature conditions and solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a vehicle motor-based assembly performance testing system simulating complex operating conditions, comprising a frame, a bottom clamp fixed to the bottom left side of the frame, a top clamp disposed above the bottom clamp, the top clamp and the bottom clamp cooperating to clamp the vehicle motor, a hysteresis dynamometer mounted on the top right side of the frame, and a frame mounted on the upper left side of the frame. The performance testing system further includes:

[0007] The temperature control component is configured inside the frame. The temperature control component is used to simulate high and low temperature environments to test the car motor. The temperature control component includes a cover part configured inside the frame. The car motor is located inside the cover part. The cover part has air jet holes on the side near the car motor. The air jet holes are evenly distributed.

[0008] An air supply assembly is disposed on the left side of the cover. The air supply assembly includes a fixed cover disposed on the left side of the cover. A straight pipe is fixedly inserted into the left side of the fixed cover. A rotary joint is fixedly inserted into the left side of the straight pipe. An air inlet pipe is fixedly inserted into the outside of the rotary joint. The air inlet pipe is used to introduce cold and hot air into the interior of the fixed cover.

[0009] Preferably, there are two sets of top clamps and bottom clamps. The covering part includes a bottom cover and a top cover. The bottom cover is divided into three sections, and the three sections are fixed between the two bottom clamps and on the side away from the two bottom clamps, respectively. The top cover is divided into three sections, and the three sections are fixed between the two top clamps and on the side away from the two top clamps, respectively. The bottom cover and the top cover cooperate to cover the car motor. The air jet holes are evenly opened on the side of the bottom cover and the top cover close to the car motor.

[0010] Preferably, the temperature control component further includes:

[0011] Dividers, arranged in a ring array, are disposed inside the bottom and top partitions to divide the interiors of the three bottom and three top partitions into multiple chambers.

[0012] Preferably, the performance testing system further includes:

[0013] The gas distribution assembly is used to uniformly inject high and low temperature gases into the interior of multiple chambers. The gas distribution assembly includes a gas guide pipe disposed between adjacent partition plates, a sliding rod slidably connected inside the gas guide pipe, an inlet hole in the gas guide pipe, and a baffle fixedly connected to the outer wall of the sliding rod at the position corresponding to the inlet hole.

[0014] Preferably, the gas distribution assembly further includes a turntable rotatably connected inside the fixed cover, a straight pipe fixedly inserted into the middle position of the turntable, an inclined block fixedly connected to the right side of the turntable, a fixed ring fixedly connected to the outer wall of the sliding rod, a spring fixedly connected between the fixed ring and the air guide pipe, and the inclined block is inclined on the right side.

[0015] Preferably, a distance sensor is fixedly connected to the right side of the sliding rod, and three exhaust pipes are configured at the rear end of each air duct. The rear end of the exhaust pipes is located inside the chamber, and a solenoid valve is installed inside each of the multiple exhaust pipes. A ball is rotatably connected to the end of the sliding rod near the inclined block to reduce friction.

[0016] Preferably, the performance testing system further includes:

[0017] The drive assembly is located on the left side of the frame. The drive assembly is used to drive the turntable to rotate with the tilting block. The drive assembly includes a motor fixedly connected to the left side of the frame. The output shaft of the motor and the outer wall of the straight tube are both fixedly connected to gears, and the two gears mesh with each other.

[0018] Preferably, the bottom clamp and top clamp are provided with grooves near the car motor, and the left side wall of the rotary joint is fixedly connected to the frame.

[0019] A powertrain performance testing method based on automotive motors simulating complex operating conditions includes the following steps:

[0020] S1. Clamping motor: The car motor is clamped and installed by the cooperation of the bottom clamp and the top clamp to ensure the stability of the car motor during testing.

[0021] S2. Testing: Simulating the test conditions of a car under different operating conditions using a hysteresis dynamometer.

[0022] Preferably, during testing, cold or hot air is introduced into the enclosure through the air supply component, which facilitates the entry of cold or hot air into the outside of the car motor, thereby facilitating the simulation of the car motor's operation under different temperatures.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. Cold or hot air is uniformly introduced into the cavities inside multiple bottom and top hoods through the air supply assembly. The introduced cold or hot air is evenly sprayed onto various areas of the car motor surface through uniformly opened air jet holes inside the cavity, thereby improving the temperature uniformity of various areas of the car motor and thus improving the accuracy of simulating the operation of the car motor under different temperature conditions.

[0025] 2. The turntable rotates continuously with the tilting block, which facilitates the entry of gas into the interior of the fixed cover. The gas located on the right side of the turntable enters the position between the adjacent partitions, thereby facilitating the uniform distribution of cold or hot air and the uniform blowing of gas to all parts around the motor. This helps to further improve the accuracy of simulating the operation of the car motor under different temperature conditions.

[0026] 3. The distance between the sensor and the right end of the air duct is measured, and the signal is transmitted to the peripheral controller. The total length of the detected distance change is divided into three intervals, each corresponding to a solenoid valve in a certain chamber. When the detected distance is in a certain interval, the corresponding solenoid valve is opened to allow cold or hot air to enter the corresponding chamber through the exhaust pipe. The distance that the sliding rod moves can be used to control the flow of air into different chambers, thereby further facilitating the even distribution of air around the motor and improving the accuracy of simulating the operation of the car motor under different temperature conditions. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is an overall structural view of the present invention;

[0029] Figure 2 This is a half-sectional structural diagram of the frame of the present invention;

[0030] Figure 3 This is a schematic diagram of a half-section of the cover portion of the present invention;

[0031] Figure 4 This is a partial structural diagram of the bottom cover of the present invention;

[0032] Figure 5 This is a half-sectional view of the fixing cover of the present invention;

[0033] Figure 6 This is a side sectional view of the top cover of the present invention;

[0034] Figure 7 This is a schematic diagram of a half-section of the air duct of the present invention;

[0035] Figure 8 For the present invention Figure 7 Enlarged view of prescription A;

[0036] Figure 9 For the present invention Figure 7 A schematic diagram of the sectional structure;

[0037] Figure 10 This is a partial cross-sectional view of the cover portion of the present invention;

[0038] Figure 11 This is a partial structural diagram of the bottom clamp of the present invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Frame; 2. Bottom clamp; 3. Top clamp; 4. Hysteresis dynamometer; 5. Frame; 6. Temperature control assembly; 61. Enclosure; 611. Bottom hood; 612. Top hood; 62. Air jet; 63. Divider plate; 64. Chamber; 7. Gas delivery assembly; 71. Fixed cover; 72. Straight pipe; 73. Rotary joint; 74. Inlet pipe; 8. Gas distribution assembly; 81. Air guide pipe; 82. Sliding rod; 83. Distance sensor; 84. Exhaust pipe; 85. Turntable; 86. Inclined block; 87. Fixed ring; 88. Spring; 89. Inlet hole; 810. Baffle; 811. Solenoid valve; 812. Ball bearing; 9. Drive assembly; 91. Motor; 92. Gear; 10. Groove. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Example 1: Please refer to Figures 1 to 10 The present invention provides a technical solution: an assembly performance testing system based on automotive motor simulating complex working conditions, including a frame 1, a bottom clamp 2 fixed on the left bottom of the frame 1, a top clamp 3 configured above the bottom clamp 2, the top clamp 3 and the bottom clamp 2 cooperate to clamp the automotive motor, a hysteresis dynamometer 4 is installed on the right top of the frame 1, and a frame 5 is installed on the left upper part of the frame 1.

[0043] By adopting the above technical solution, when it is necessary to test the car motor, the car motor is clamped and installed by the cooperation of the bottom clamp 2 and the top clamp 3 to ensure the stability of the car motor during testing, thereby improving the stability of the car motor during testing. The output shaft of the car motor is inserted into the interior of the hysteresis dynamometer 4 through the fixed installation connecting rod. The hysteresis dynamometer 4 is used to test the working condition of the car motor. The hysteresis dynamometer 4 can be used to test the dynamic characteristic curve of the car motor. By measuring parameters such as speed and torque, the performance of the motor under different working conditions can be evaluated, which is beneficial to simulating the situation of the car motor under complex working conditions.

[0044] The performance testing system also includes an internal temperature control component 6 configured in the frame 5. The temperature control component 6 is used to simulate high and low temperature environments to test the automotive motor. The temperature control component 6 includes a cover 61 configured inside the frame 5. The automotive motor is located inside the cover 61. The cover 61 has air jet holes 62 on the side near the automotive motor. The air jet holes 62 are evenly distributed. The performance testing system also includes an air supply component 7 configured on the left side of the cover 61. The top clamp 3 and the bottom clamp 2 are each provided with two sets. The cover 61 includes a bottom cover 611 and a top cover 612. The bottom cover 611 is divided into three sections. The three sections of the bottom cover 611 are respectively fixed between the two bottom clamps 2 and the two bottom clamps. On the side of the seat 2 that is far away from each other, the top cover 612 is divided into three sections. The three sections of the top cover 612 are fixed between the two top clamp seats 3 and on the side of the two top clamp seats 3 that is far away from each other. The bottom cover 611 and the top cover 612 cooperate to wrap the car motor. The air jet vents 62 are evenly opened on the side of the bottom cover 611 and the top cover 612 that are close to the car motor. The top temperature control assembly 6 also includes partition plates 63 arranged in a ring array inside the bottom cover 611 and the top cover 612, which are used to divide the interior of the three bottom covers 611 and the three top covers 612 into multiple chambers 64. The partition plates 63 are fixed to the bottom cover 611 or the top cover 612. The top clamp seats 3 or the bottom clamp seats 2 can be installed with bolts.

[0045] By adopting the above technical solution, during testing, the bottom clamp 2 and top clamp 3 cooperate to clamp the car motor, and the bottom cover 611 is fixed to the bottom clamp 2, and the top cover 612 is fixed to the top clamp 3. At this time, the bottom cover 611 and top cover 612 cooperate to wrap the outside of the car motor. Cold or hot air is uniformly introduced into the chambers 64 inside the multiple bottom covers 611 and multiple top covers 612 through the air supply assembly 7. The introduced cold or hot air is uniformly sprayed into various areas of the car motor surface through uniformly opened air jet holes 62 inside the chambers 64, thereby improving the temperature uniformity of various areas of the car motor and thus improving the accuracy of simulating the operation of the car motor under different temperature conditions.

[0046] It should be noted that the multiple bottom covers 611 and multiple top covers 612 are located close to the car motor, so that when the ambient temperature around the car motor reaches the target temperature, only a small amount of cold or hot air is needed, which helps to improve the energy-saving performance of the test.

[0047] It should be noted that when the multiple bottom covers 611 and the multiple top covers 612 enclose the car motor, gaps are left to facilitate the discharge of excess air and to facilitate the access of the wiring used to power the car motor.

[0048] The performance testing system also includes a gas distribution assembly 8 located on the right side of the rotary joint 73, used to uniformly inject high and low temperature gases into the interior of multiple chambers 64. The gas distribution assembly 8 includes a gas guide pipe 81 disposed between adjacent partition plates 63. A sliding rod 82 is slidably connected inside the gas guide pipe 81. The gas guide pipe 81 has an inlet hole 89. A baffle 810 is fixedly connected to the outer wall of the sliding rod 82 at the position corresponding to the inlet hole 89. Multiple gas guide pipes 81 are provided. A single gas guide pipe 81 passes through the top clamp 3 or the bottom clamp 2, and a single gas guide pipe 81 is fixed to the top clamp 3 or the bottom clamp 2. The gas delivery assembly 7 includes a fixed cover 71 disposed on the left side of the enclosure 61. A straight pipe 72 is fixedly inserted into the left side of the fixed cover 71. A rotary joint 73 is fixedly inserted into the left side of the straight pipe 72. The rotary joint 73 is a mature existing technology and will not be described in detail. It does not affect the rotation of the straight pipe 72. An air inlet pipe 74 is fixedly inserted into the outside of the rotary joint 73. 4 is used to introduce cold and hot air into the interior of the fixed cover 71. The right side of the fixed cover 71 is fixed to the bottom distribution cover 611 located on the far left. The air distribution assembly 8 also includes a turntable 85 rotatably connected inside the fixed cover 71. A straight pipe 72 is fixedly inserted into the middle position of the turntable 85. An inclined block 86 is fixedly connected to the right side of the turntable 85. A fixed ring 87 is fixedly connected to the outer wall of the sliding rod 82. A spring 88 is fixedly connected between the fixed ring 87 and the air guide pipe 81. The right side of the inclined block 86 is inclined. A ball 812 for reducing friction is rotatably connected to the end of the sliding rod 82 near the inclined block 86. The performance testing system also includes a drive assembly 9 configured on the left side of the frame 5. The drive assembly 9 is used to drive the turntable 85 to rotate with the inclined block 86. The drive assembly 9 includes a motor 91 fixedly connected to the left side inside the frame 5. Gears 92 are fixedly connected to the output shaft of the motor 91 and the outer wall of the straight pipe 72. The two gears 92 mesh with each other.

[0049] By adopting the above technical solution, cold or hot air is introduced through the air inlet pipe 74 in the air supply assembly 7. The air enters the interior of the straight pipe 72 through the rotary joint 73, and then enters the interior of the fixed cover 71 located on the right side of the turntable 85. In the initial state, under the elastic force of the spring 88, the baffle 810 can block the inlet hole 89, so that the air cannot enter the interior of the air guide pipe 81.

[0050] The output shaft of the motor 91 drives the gear 92 fixedly connected to it to rotate. Under the action of the two gears 92 meshing with each other, the straight pipe 72 can rotate with the turntable 85, thus rotating the tilting block 86. When the tilting block 86 rotates to the position of one of the sliding rods 82, due to the right-side tilting of the tilting block 86, the sliding rod 82 gradually rotates through the tilted surface. At this time, under the limiting action of the tilting block 86, the sliding rod 82 can overcome the elastic force of the spring 88 and move to the right. At this time, one of the baffles 810 moves to the right with the corresponding sliding rod 82. At this time, the baffle 810 does not block its corresponding inlet hole 89, while the baffles 810 at other air guide pipes 81 remain in their initial state, and their corresponding inlet holes 89 are blocked.

[0051] When the tilting block 86 rotates to the sliding rod 82 at other air guide pipes 81, the corresponding inlet hole 89 is not blocked. As the turntable 85 rotates continuously with the tilting block 86, it is easy for the gas to enter the interior of the fixed cover 71. The gas located on the right side of the turntable 85 enters the position between the adjacent partitions, which is conducive to the uniform distribution of cold or hot air and the uniform blowing of gas to all parts around the motor. This is conducive to further improving the accuracy of simulating the operation of the car motor under different temperature conditions.

[0052] It should be noted that the right side of the fixed cover 71 is fixed to the leftmost bottom cover 611. When the top clamp 3 or the bottom clamp 2 are installed by bolts, the top right side of the fixed cover 71 is in contact with the rightmost top cover 612.

[0053] Example 2: The technical solution of this example differs from that of Example 1 in that: Figures 2 to 11 A distance sensor 83 is fixedly connected to the right side of the sliding rod 82. Each air duct 81 is equipped with three exhaust pipes 84 at its rear end. The rear end of the exhaust pipes 84 is located inside the chamber 64. Solenoid valves 811 are installed inside the multiple exhaust pipes 84.

[0054] By adopting the above technical solution, as the tilting block 86 rotates, when the sliding rod 82 is limited at different positions, the sliding rod 82 moves a different distance, which makes the distance between the distance sensor 83 and the right end of the air duct 81 different. The distance sensor 83 measures the distance between itself and the right end of the air duct 81, transmits the signal to the peripheral controller, and divides the total length of the detected distance change into three intervals. Each interval corresponds to the solenoid valve 811 in the corresponding chamber 64. When the detected distance is in a certain interval, the corresponding solenoid valve 811 is opened to allow cold or hot air to enter the corresponding chamber 64 through the exhaust pipe 84.

[0055] This design allows for control of airflow into different chambers 64 by adjusting the distance the sliding rod 82 moves, thereby facilitating the even distribution of air around the motor and further improving the accuracy of simulating the operation of a car motor under different temperature conditions.

[0056] The bottom clamp 2 and the top clamp 3 have grooves 10 near the car motor, and the left side wall of the rotary joint 73 is fixedly connected to the frame 5.

[0057] By adopting the above technical solution, the design of the groove 10 reduces the clamping surface between the bottom clamp 2 and the top clamp 3 and the car motor, thereby reducing the blind zone of the simulated temperature environment. In addition, the design of the groove 10 facilitates the connection between the car motor and the various spaces formed by the bottom cover 611 and the multiple top covers 612.

[0058] A powertrain performance testing method based on automotive motors simulating complex operating conditions includes the following steps:

[0059] S1. The car motor is clamped and installed by the cooperation of the bottom clamp 2 and the top clamp 3 to ensure the stability of the car motor during testing, thereby improving the stability of the car motor during testing. The output shaft of the car motor is inserted into the inside of the hysteresis dynamometer 4 through the fixed installation connecting rod.

[0060] S2. Testing: The hysteresis dynamometer 4 is used to test the operating conditions of the automotive motor. The hysteresis dynamometer 4 can be used to test the dynamic characteristic curve of the automotive motor. By measuring parameters such as speed and torque, the performance of the motor under different operating conditions can be evaluated, which is helpful in simulating the situation of the automotive motor under complex operating conditions.

[0061] Preferably, during testing, the bottom clamp 2 and top clamp 3 clamp the car motor together, and the bottom cover 611 is fixed to the bottom clamp 2, while the top cover 612 is fixed to the top clamp 3. At this time, the bottom cover 611 and top cover 612 together wrap the outside of the car motor. Cold or hot air is uniformly introduced into the chambers 64 inside the multiple bottom covers 611 and multiple top covers 612 through the air supply assembly 7. The introduced cold or hot air is uniformly sprayed onto various areas of the car motor surface through uniformly opened air jet holes 62 inside the chambers 64, thereby improving the temperature uniformity of various areas of the car motor and thus improving the accuracy of simulating the operation of the car motor under different temperature conditions.

[0062] Working principle: Cold or hot air is introduced into the air intake pipe 74 of the air supply assembly 7. The air enters the interior of the straight pipe 72 through the rotary joint 73, and then enters the interior of the fixed cover 71 located to the right of the turntable 85. In the initial state, under the elastic force of the spring 88, the baffle 810 can block the inlet hole 89, so the air cannot enter the interior of the air guide pipe 81. The output shaft of the motor 91 drives the gear 92 fixedly connected to its output shaft to rotate. Under the action of the two gears 92 meshing with each other, the straight pipe 72 can rotate with the turntable 85, thus rotating the tilting block 86. When the tilting block 86 rotates to the position of one of the sliding rods 82, due to the tilting setting on the right side of the tilting block 86, the sliding rod 82 gradually rotates through the tilted surface. At this time, under the limiting action of the tilting block 86, the sliding rod 82 can overcome the elastic force of the spring 88 and move to the right. At this time, one of the baffles 810 moves to the right along with the corresponding sliding rod 82. At this time, the baffle 810 does not block its corresponding inlet hole 89, while the baffles 810 at other air guide pipes 81 remain in their initial state and their corresponding inlet holes 89 are blocked. When the tilting block 86 rotates to the sliding rod 82 at other air guide pipes 81, the corresponding inlet hole 89 is not blocked. As the turntable 85 carries the tilting block 86 to rotate continuously, it is convenient for the gas located on the right side of the turntable 85 to enter the position between the adjacent partitions, thereby facilitating the uniform distribution of cold or hot air and the uniform blowing of gas to all parts around the motor.

[0063] As the tilting block 86 rotates, the sliding rod 82 moves a different distance when it is limited at different positions. This results in a different distance between the distance sensor 83 and the right end of the air duct 81. The distance sensor 83 measures the distance between itself and the right end of the air duct 81, transmits the signal to the peripheral controller, and divides the total length of the detected distance change into three intervals. Each interval corresponds to the solenoid valve 811 in the corresponding chamber 64. When the detected distance is in a certain interval, the corresponding solenoid valve 811 is opened to allow cold or hot air to enter the corresponding chamber 64 through the exhaust pipe 84.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A system for testing the performance of an automotive motor under simulated complex operating conditions, comprising a frame (1), a bottom clamp (2) fixed to the bottom left side of the frame (1), a top clamp (3) disposed above the bottom clamp (2), the top clamp (3) and the bottom clamp (2) cooperating to clamp the automotive motor, a hysteresis dynamometer (4) mounted on the top right side of the frame (1), and a frame (5) mounted on the upper left side of the frame (1), characterized in that, The performance testing system also includes: Temperature control component (6) is disposed inside frame (5). Temperature control component (6) is used to simulate high and low temperature environments to test the car motor. Temperature control component (6) includes a cover part (61) disposed inside frame (5). The car motor is located inside the cover part (61). The cover part (61) has air jet holes (62) on the side near the car motor. The air jet holes (62) are evenly distributed. There are two sets of top clamp (3) and bottom clamp (2). Cover part (61) includes bottom cover (611) and top cover (612). Bottom cover (611) is divided into three sections. The three sections of bottom cover (611) are fixed between the two bottom clamps (2). On the side away from the two bottom clamps (2), the top cover (612) is divided into three sections. The three sections of the top cover (612) are fixed between the two top clamps (3) and on the side away from the two top clamps (3). The bottom cover (611) and the top cover (612) cooperate to wrap the car motor. The jet holes (62) are evenly opened on the side of the bottom cover (611) and the top cover (612) close to the car motor. The temperature control assembly (6) also includes partition plates (63) arranged in a ring array inside the bottom cover (611) and the top cover (612) for dividing the interior of the three bottom covers (611) and the three top covers (612) into multiple chambers (64). The gas delivery assembly (7) is located on the left side of the cover (61). The gas delivery assembly (7) includes a fixed cover (71) located on the left side of the cover (61). A straight pipe (72) is fixedly inserted into the left side of the fixed cover (71). A rotary joint (73) is fixedly inserted into the left side of the straight pipe (72). An air inlet pipe (74) is fixedly inserted into the outside of the rotary joint (73). The air inlet pipe (74) is used to introduce cold and hot air into the interior of the fixed cover (71). Gas distribution assembly (8) is used to uniformly inject high and low temperature gases into the interior of multiple chambers (64). Gas distribution assembly (8) includes a gas guide pipe (81) disposed between adjacent partition plates (63). A sliding rod (82) is slidably connected inside the gas guide pipe (81). The gas guide pipe (81) has an inlet hole (89). A baffle (810) is fixedly connected to the outer wall of the sliding rod (82) at the position corresponding to the inlet hole (89). Gas distribution assembly (8) also includes a turntable (85) rotatably connected inside a fixed cover (71). A straight pipe (72) is fixedly inserted into the middle position of the turntable (85). An inclined plate is fixedly connected to the right side of the turntable (85). The inclined block (86) and the sliding rod (82) are fixedly connected to a fixing ring (87). A spring (88) is fixedly connected between the fixing ring (87) and the air guide tube (81). The right side of the inclined block (86) is inclined. A distance sensor (83) is fixedly connected to the right side of the sliding rod (82). Each air guide tube (81) is equipped with three exhaust pipes (84) at its rear end. The rear end of the exhaust pipes (84) is placed inside the chamber (64). Solenoid valves (811) are installed inside the multiple exhaust pipes (84). A ball (812) for reducing friction is rotatably connected to the end of the sliding rod (82) near the inclined block (86). The drive assembly (9) is located on the left side of the frame (5). The drive assembly (9) is used to drive the turntable (85) to rotate with the tilting block (86). The drive assembly (9) includes a motor (91) fixedly connected to the left side inside the frame (5). The output shaft of the motor (91) and the outer wall of the straight tube (72) are both fixedly connected with gears, and the two gears mesh with each other.

2. The assembly performance testing system based on automotive motor simulation of complex working conditions according to claim 1, characterized in that: The bottom clamp (2) and the top clamp (3) have grooves (10) near the car motor, and the left side wall of the rotary joint (73) is fixedly connected to the frame (5).

3. A method for testing the performance of an automotive motor under simulated complex operating conditions, characterized in that: This method employs the automotive motor assembly performance testing system for simulating complex operating conditions as described in claim 2, and includes the following steps: S1. Clamping the motor: The car motor is clamped and installed by the cooperation of the bottom clamp (2) and the top clamp (3) to ensure the stability of the car motor during testing. S2, Test, using a hysteresis dynamometer (4) to test the simulated car under different working conditions.

4. The assembly performance testing method based on automotive motor simulating complex working conditions according to claim 3, characterized in that: During testing, cold or hot air is introduced into the enclosure (61) through the air supply assembly (7) to facilitate the entry of cold or hot air into the outside of the car motor, thereby facilitating the simulation of the car motor's operation under different temperatures.

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