Passenger vehicle power assembly part testing device

Abstract

The invention relates to a passenger car power assembly part testing device, which comprises a base, a prototype installation assembly and a dynamometer assembly, and is characterized in that the prototype installation assembly comprises a supporting seat and a prototype installation platform, and the supporting seat and the prototype installation platform are alternatively installed on the base; the dynamometer assembly comprises a driving system and a loading system, and the driving system and the loading system are detachably connected to the base; wherein when the driving system and the loading system are axially and vertically arranged, the driving system, the loading system and the prototype mounting platform form a first test structure, and when the driving system and the loading system are axially and parallelly arranged, the driving system, the loading system and the supporting seat form a second test structure. According to the invention, the driving system and the loading system can be selectively combined with the supporting seat and the prototype mounting platform for use according to different test prototypes, and are adjusted, arranged and fixed on the base, so that the test mounting requirements of different types of products can be met, and the product development cost is reduced to a certain extent.

Description

Technical Field

[0001] This application relates to the field of vehicle testing, and in particular to a testing device for passenger vehicle powertrain components. Background Technology

[0002] With the development of the new energy industry, various product structures have emerged on the market, including pure electric and hybrid products. Hybrid products further categorize themselves into transverse and longitudinal engine configurations, while pure electric products feature left-hand and right-hand motor configurations, or single-motor and dual-motor drive systems. Validating these different products often requires numerous diverse testing devices, resulting in relatively high investment for both testing manufacturers and OEMs. Furthermore, the validation of dual-motor drive gearboxes and hybrid power gearboxes presents a significant technical challenge. This is because the testing device needs two high-speed drive motors and two loading motors, and its flexible layout must accommodate different product dimensions while ensuring reliability during high-speed testing. Existing testing devices are relatively limited in function, only capable of testing specific product types and unable to meet the needs of developing diverse product platforms. Summary of the Invention

[0003] This application provides a testing device for passenger vehicle powertrain components, which can solve the problem that existing testing devices in the related technology have relatively limited functions, can only perform testing on a specific type of product, and cannot meet the needs of different product platform development.

[0004] In a first aspect, embodiments of this application provide a testing device for a passenger vehicle powertrain component, comprising: a base, a prototype mounting assembly, and a dynamometer assembly. The prototype mounting assembly includes a support base and a prototype mounting platform, wherein the support base and the prototype mounting platform are selectively mounted on the base. The dynamometer assembly includes a drive system and a loading system, wherein the drive system and the loading system are detachably connected to the base. When the drive system and the loading system are axially perpendicular, the drive system, the loading system, and the prototype mounting platform form a first test structure; when the drive system and the loading system are axially parallel, the drive system, the loading system, and the support base form a second test structure.

[0005] In one embodiment, the driving system includes a first driving component and a second driving component, and the loading system includes a first loading component and a second loading component; When the drive system and the loading system are arranged axially perpendicularly, the first drive component and the second drive component are respectively located on the two sides corresponding to the prototype mounting platform, and the first loading component and the second loading component are respectively located on the other two sides corresponding to the prototype mounting platform. When the drive system and the loading system are arranged axially parallel, the first drive member and the first loading member are disposed on one side of the support base, and the second drive member and the first loading member are disposed on the other side of the support base.

[0006] In one embodiment, both the base of the first driving member and the base of the second driving member are provided with clearance grooves, and clearance ribs are provided at the openings of the clearance grooves.

[0007] In one embodiment, both the drive system and the loading system are equipped with protective components; Both the drive system and the loading system are equipped with support and adjustment mechanisms at their bottom ends; Both the drive system and the loading system are connected to the test specimen via a bearing housing. The bearing housing is equipped with a torque and speed sensor, which is positioned close to the sample side.

[0008] In one embodiment, the support adjustment mechanism includes: a top plate, a base, a Z-axis adjustment mechanism, a Y-axis adjustment mechanism, and an X-axis adjustment mechanism. The top of the top plate is a connection end for the dynamometer assembly. The base is filled with counterweights. The Z-axis adjustment mechanism is disposed between the top plate and the base. The Y-axis adjustment mechanism is connected to the base. The X-axis adjustment mechanism is connected to the base.

[0009] In one embodiment, the Z-axis adjustment mechanism includes: a servo motor, a reducer, a worm gear mechanism, and a motor support. The reducer is connected to the servo motor; the worm gear mechanism is connected to the reducer; the motor support is threadedly connected to the worm gear mechanism; and the motor support is connected to the top plate.

[0010] In one embodiment, a guide mechanism, a locking mechanism, and an adjustment scale are also provided between the top plate and the base.

[0011] In one embodiment, the protective component includes a protective cover and a position sensor, wherein the outer surfaces of both the drive system and the loading system are covered with the protective cover; The position sensor is mounted on the protective cover.

[0012] In one embodiment, the support base is provided with a positioning stop and a guide pin; The prototype mounting platform includes an adjustable support and a mounting frame, wherein the mounting frame is connected to the top of the adjustable support; The base has a guide groove at its top and an oil drain hole inside the base, and the guide groove is connected to the oil drain hole.

[0013] In one embodiment, the test apparatus further includes a measurement and control component, which includes a host computer, a fault diagnostic instrument, and a data acquisition system, all of which are connected to the dynamometer component.

[0014] The beneficial effects of the technical solutions provided in this application include: This application provides a test device for passenger vehicle powertrain components. The drive system and loading system can be selected and combined with the support base and prototype mounting platform according to different test prototypes. They can be adjusted, arranged and fixed on the base, which can meet the test and installation needs of different types of products and reduce product development costs to a certain extent. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of this application; Figure 2 A schematic diagram of the first experimental structure provided in this application embodiment; Figure 3 This is a schematic diagram of the second experimental structure provided in an embodiment of this application; Figure 4 This is a schematic diagram of the prototype installation platform provided in the embodiments of this application; Figure 5 A schematic diagram of the support adjustment mechanism provided in the embodiments of this application; Figure 6 A schematic diagram of the protective components provided in the embodiments of this application; Figure 7 A schematic diagram of the support base provided in the embodiments of this application; Figure 8 This is a schematic diagram of the avoidance stiffener provided in an embodiment of this application; Figure 9 This is a schematic diagram of the base provided in an embodiment of this application.

[0017] In the diagram: 1. Prototype mounting components; 10. Support base; 100. Positioning stop; 101. Guide pin; 11. Prototype mounting platform; 110. Adjustable support; 111. Mounting bracket; 2. Dynamometer assembly; 20. First drive component; 21. Second drive component; 22. First loading component; 23. Second loading component; 24. Alignment rib; 3. Support and adjustment mechanism; 30. Motor support; 31. Reducer; 32. Servo motor; 33. Worm gear mechanism; 34. Top plate; 35. Guide mechanism; 36. Locking mechanism; 37. Adjustment scale; 4. Base; 40. Oil guide groove; 41. Oil drain hole; 5. Measurement and control components; 50. Host computer; 51. UPS; 52. Real-time control system; 53. Variable frequency drive system; 54. Data acquisition system; 55. High and low temperature environment chamber; 56. Cooling system; 57. Fault diagnostic instrument; 58. Power analyzer; 6. Battery simulator; 7. Current sensor; 8. Prototype; 80. Controller; 9. Protective components; 90. Protective cover; 91. Position sensor. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0019] This application provides a testing device for passenger vehicle powertrain components, which can solve the problem that existing testing devices in the related technology have relatively limited functions, can only test a specific type of product, and cannot meet the needs of different product platform development.

[0020] See Figures 1 to 8 As shown in the figure, this application provides a test device for passenger vehicle powertrain components, which includes: a base 4, a prototype mounting assembly 1, and a dynamometer assembly 2. The prototype mounting assembly 1 includes a support base 10 and a prototype mounting platform 11, and the support base 10 and the prototype mounting platform 11 are selectively mounted on the base 4. The dynamometer assembly 2 includes a drive system and a loading system, which are detachably connected to the base 4. When the drive system and the loading system are arranged axially perpendicularly, the drive system, the loading system, and the prototype mounting platform 11 form a first test structure. When the drive system and the loading system are arranged axially parallel, the drive system, the loading system, and the support base 10 form a second test structure.

[0021] In this application, the drive system and the loading system can be selectively combined with the support base 10 and the prototype installation platform 11 according to the differences of the test prototype 8, and adjusted, arranged and fixed on the base 4, which can meet the test installation requirements of different types of products and reduce the product development cost to a certain extent.

[0022] Among them, the prototype installation component 1 and the dynamometer component 2 are both installed and fixed on the base 4. The base 4 is designed with several "convex" - shaped grooves on its upper part for fixing related equipment. An oil guide groove 40 is opened at the top of the base 4, and an oil drain hole 41 is opened inside the base 4. The oil guide groove 40 is connected to the oil drain hole 41, which is convenient for collecting and cleaning the lubricating fluid, water, etc. leaked from the prototype or other equipment. Several air springs are scattered at the bottom of the base 4 for automatically leveling the base 4 and isolating vibration of the entire bench system.

[0023] When the drive system and the loading system are arranged axially perpendicular, refer to Figure 2 shown. When the drive system and the loading system are arranged axially parallel, refer to Figure 3 shown. Among them, the drive system includes a first drive member 20 and a second drive member 21, and the loading system includes a first loading member 22 and a second loading member 23. Both the first drive member 20 and the second drive member 21 include a high - speed drive motor and a torque - speed sensor, which are mainly used to connect to the high - speed input interface of the test prototype 8, and the maximum speed can reach 20000 r / min.

[0024] Both the first loading member 22 and the second loading member 23 include a low - speed high - torque loading motor and a torque - speed sensor, which are mainly used to connect to the output interface of the test prototype 8 for controlling the speed, torque, etc. of the input and output interfaces of the test prototype 8. The drive system and the loading system can both be set to the speed mode or the torque mode according to user requirements. The drive system and the loading system are both directly connected to the test prototype 8 through a bearing seat or a transmission shaft, and a torque - speed sensor is arranged on the bearing seat to ensure the accuracy of the test device measurement and a high dynamic response. And to improve the test accuracy, the torque - speed sensors of this test device are all arranged between the bearing seat and the prototype, close to the sample side, to reduce the efficiency loss brought by the transmission mechanism of the test device.

[0025] The drive system and the loading system can be randomly selected and combined according to the differences of the test prototype 8, and adjusted, arranged and fixed on the base 4.

[0026] Taking the most complex hybrid transmission test as an example, four interfaces need to be used simultaneously during the test. The drive system and the loading system are arranged axially vertically. The first drive component 20 and the second drive component 21 are respectively set on the two sides of the prototype mounting platform 11. The first loading component 22 and the second loading component 23 are respectively set on the other two sides of the prototype mounting platform 11, so that the test device is arranged in a "+" shape: that is, the prototype mounting platform 11 is set in the middle of the base 4, and the first drive component 20 and the second drive component 21, the first loading component 22 and the second loading component 23 are respectively set around the prototype mounting platform 11.

[0027] Furthermore, if the prototype 8 is an electrically driven assembly, it can be fixed using the designed prototype mounting platform 11. The prototype mounting platform 11 includes an adjustable support 110 and a mounting bracket 111. The mounting bracket 111 is connected to the top of the adjustable support 110. The mounting bracket 111 has a U-shaped groove machined in it and is equipped with a matching U-shaped iron block. The U-shaped iron block is designed with threaded holes for mounting and fixing the prototype 8. Several mounting brackets 111 are combined and supported by the adjustable support 110 to form the prototype mounting platform 11. The prototype 8 can be mounted and fixed on the prototype mounting platform 11 using a corresponding real vehicle mounting bracket. By adjusting the center of the adjustable support 110, the center height of the output shaft of the prototype 8 can be made close to the center height of the bench loading system.

[0028] When the drive system and loading system are arranged axially parallel, the first drive member 20 and the first loading member 22 are located on one side of the support base 10, and the second drive member 21 and the first loading member 22 are located on the corresponding side of the support base 10, so that the test device is arranged in a straight line. Furthermore, for the test prototype 8 with parallel input and output shafts, since the distance between the center of the drive motor / generator output shaft, engine output shaft, and differential shaft is generally in the range of 170mm to 220mm, this application provides an output drive shaft clearance mechanism. Clearance grooves are provided on the base 4 of the first drive member 20 and the base 4 of the second drive member 21, so that the base 4 is C-shaped. Clearance ribs 24 are provided at the openings of the clearance grooves. The clearance ribs 24 can be disassembled during drive shaft installation and then restored after installation, which also ensures stability during high-speed drive. If the clearance ribs 24 still cannot achieve clearance due to drive shaft limitations, the drive shaft can be modified and extended to meet the test requirements.

[0029] Furthermore, if the test prototype 8 is a single motor or gearbox sample, the sample can be fixed by the support base 10 in the drive system, that is, the mounting end face of the test prototype 8 is connected and fixed to the mounting end face of the support base 10. The support base 10 is provided with a positioning stop 100, a guide pin 101, and a positioning guide hole. The positioning pin and tooling stop design ensure the alignment between the test prototype 8 and the input center of the bench drive system. The support base 10 has a symmetrical design, with process holes on both the left and right sides, which can perfectly accommodate both left-hand and right-hand motor configurations in new energy products.

[0030] Based on the above embodiments, in this embodiment, both the drive system and the loading system are equipped with protective components 9.

[0031] The protective component 9 includes a protective cover 90 and a position sensor 91. The outer surfaces of both the drive system and the loading system are covered by the protective cover 90. The position sensor 91 is mounted on the protective cover 90. Specifically, the position sensor 91 is located at the switch of the protective cover 90, which can be rotated open. When not closed, an alarm or action can be set to avoid the risk of mechanical injury during high-speed testing.

[0032] Based on the above embodiments, in this embodiment, both the drive system and the loading system are provided with a support adjustment mechanism 3 at their bottom ends.

[0033] Specifically, the support adjustment mechanism 3 includes: a top plate 34, a base, a Z-axis adjustment mechanism, a Y-axis adjustment mechanism, and an X-axis adjustment mechanism. The top of the top plate 34 is the connection end of the dynamometer assembly 2. The Z-axis adjustment mechanism is located between the top plate 34 and the base. The Y-axis adjustment mechanism is connected to the base. The X-axis adjustment mechanism is connected to the base.

[0034] The Y-axis adjustment mechanism and the X-axis adjustment mechanism adjust the top plate 34 in the Y and X directions by using a single worm gear and a servo motor 32. The Y-axis adjustment mechanism and the X-axis adjustment mechanism are connected to the base body and adjust the top plate 34 by driving the base body to move.

[0035] A Z-axis adjustment mechanism is located between the top plate 34 and the base, enabling adjustment of the height of the top plate 34 relative to the base. This Z-axis adjustment mechanism includes: a servo motor 32, a reducer 31, a worm gear mechanism 33, and a motor support 30. The reducer 31 is connected to the servo motor 32; the worm gear mechanism 33 is connected to the reducer 31; the motor support 30 is threadedly connected to the worm gear mechanism 33, and the motor support 30 is connected to the top plate 34. For details, see [link to details]. Figure 5As shown, four sets of motor supports 30, worm gear mechanisms 33, and three sets of reducers 31 are provided. The working process involves the servo motor 32 driving the central reducer 31 to rotate, which then transmits power to the reducers 31 on the left and right sides. The reducers 31 on the left and right sides then transmit power to the four sets of worm gear mechanisms 33 through two outputs, thereby driving the four sets of motor supports 30 to adjust synchronously up and down. In addition, a guide mechanism 35, a locking mechanism 36, and an adjustment scale 37 are provided between the top plate 34 and the base. Specifically, an adjustment scale 37, an observation level, and related adjustment guides and locking mechanisms 36 are provided on the side of the dynamometer base 4, ensuring the reliability of the support adjustment mechanism 3 in the Z-direction adjustment and the stability of the system operation.

[0036] In addition, to avoid abnormal phenomena such as resonance in the system during high-speed drive, a large-sized cast base is used at the high-speed drive end. The base is filled with a counterweight, which is an iron sand counterweight poured into the base to ensure that the system has sufficient rigidity and stability. During installation and adjustment, the high-speed drive end is kept fixed, while the other motors can be adjusted in three directions. The prototype input shaft tooling structure adopts a double spline structure at both ends to reduce abnormal vibration caused by the misalignment between the prototype input end and the high-speed input end of the test bench.

[0037] Based on the above embodiments, in this embodiment, the test device further includes a measurement and control component 5, which includes a host computer 50, a UPS 51, a real-time control system 52, a frequency conversion drive system 53, a data acquisition system 54, a high and low temperature environment chamber 55, a cooling system 56, a fault diagnostic instrument 57, a power analyzer 58, a battery simulator 6, and a current sensor 7. The test prototype 8 is connected to a controller 80, and the host computer 50, the controller 80, and the data acquisition system 54 are all connected to the dynamometer component 2.

[0038] The host computer 50 is used for command transmission and reception, data display, etc.; the UPS 51 (uninterruptible power supply) is used for AC voltage stabilization and to protect the equipment from damage during temporary power outages; the data acquisition system 54 collects signals including, but not limited to, those contained in the prototype's CAN bus, as well as signals from some external sensors, such as the temperature, flow rate, and pressure of the water entering and leaving the controller 80, the temperature, flow rate, and pressure of the oil pump motor's oil inlet and outlet, and vibration measurement signals at a specified point on the surface of the test prototype 8, etc., which need to be measured when performing assembly heat dissipation analysis and verification. At the same time, the power analyzer 58 and current sensor 7 included in the data acquisition system 54 can be integrated into an electrical signal test cart, which facilitates quick wiring during the testing process and ensures the advantages of bench testing safety and aesthetics. The power analyzer 58 transmits data to the host computer 50 on the bench via Ethernet. The data acquisition system 54 also includes a fault diagnostic instrument 57, which can perform alarm monitoring and order analysis on the test piece.

[0039] Furthermore, the experimental setup also includes a real-time control system 52. The real-time control system 52 possesses high dynamic response characteristics and fast signal command transmission and calculation speeds. It is primarily used for real-time control of equipment such as the bench motor, variable frequency drive system 53, and battery simulator 6, ensuring the bench can complete certain dynamic response tests. Simultaneously, the real-time control system 52 can also quickly receive feedback signals from relevant sensors and transmit them along with data from the bench data acquisition system 54 to the user interface of the bench host computer 50, facilitating user control and analysis.

[0040] Furthermore, the test setup also includes auxiliary facilities, such as a high and low temperature environment chamber 55, a battery simulator 6, and a cooling system 56. The high and low temperature environment chamber 55 is mainly used for controlling environmental parameters of the test prototype 8, such as temperature and humidity. The battery simulator 6 includes a high-voltage system and a low-voltage system, mainly used for simulating high and low voltage power supply to the test prototype 8. The high-voltage system has dual-channel control and can be expanded for use in dual-motor electric drive assemblies or for simultaneously verifying two single-motor test prototypes 8. The cooling system 56 includes three types of equipment: a water-cooling system, an oil-cooling system, and an air-cooling system, each with multi-channel control. The water-cooling system is mainly used for cooling the motor controller 80 and the bench motor of the test prototype 8, while the oil-cooling system is mainly used for cooling the test prototype 8. All auxiliary facilities can be integrated and controlled via the bench computer 50. The software system of the host computer 50 has high openness, reserving communication signal interfaces such as CAN and Ethernet for future expansion of equipment functions. It should be noted that the battery simulator 6 and the current sensor 7... If the test prototype 8 is a motor or gearbox sample, the support base 10 is designed with a positioning stop 100 and a positioning guide hole. The positioning pin and tooling stop design ensure the alignment between the test prototype 8 and the input center of the bench drive system. The test prototype 8 can be quickly connected and fixed to the second drive component 21 through the mounting end face and the double spline shaft. Through the bench alignment guarantee measures and the clearance of the double spline tooling, the adverse effects such as vibration caused by misalignment between the prototype input interface and the bench input interface can be greatly reduced. After the prototype is installed and fixed, the output drive shaft can be connected. During the installation process, the shaft center is adjusted in conjunction with the Z-axis adjustment mechanism, Y-axis adjustment mechanism and X-axis adjustment mechanism of the test bench. Taking Z-axis adjustment as an example, the Z-axis fixing mechanism of the platform needs to be loosened first, and the servo motor 32 is started. The power is transmitted synchronously to the reducers 31 on the left and right sides through the reducer 31 located in the center. The reducers 31 on the left and right sides then transmit the power synchronously to each motor support 10, thereby driving the top plate 34 to rise synchronously. During the rising process, the displacement can also be observed by adjusting the scale 37.

[0041] If the test prototype 8 is an electric drive assembly prototype, it can be fixed to the prototype mounting platform 11 using the designed suspension support fixture. By adjusting the positions of the adjusting support 110 and mounting bracket 111 of the prototype mounting platform 11, the center height of the output shaft of the test prototype 8 is brought close to the center height of the bench loading system, and then connected to the first loading component 22 and the second loading component 23 via the actual vehicle drive shaft. Afterwards, the water, electricity, gas, and other inputs and outputs of the prototype are connected sequentially, and the relevant configurations are performed using the test device software.

[0042] If the test prototype 8 is a hybrid gearbox test prototype 8, and it is arranged in a single line, first prepare a modified test prototype 8 with a modified housing. Modify and extend the drive motor shaft and generator shaft of the prototype to allow input and output of the sample via the bench motor, facilitating a more comprehensive verification of the purely mechanical parts of the product. Mount and fix the test prototype 8 on the support base 10 through the engine mounting mating surface and tooling transition plate, and connect the motor input shaft of the second drive component 21. Then, through the Z-axis adjustment mechanism, Y-axis adjustment mechanism, and X-axis adjustment mechanism, connect the drive motor interface or generator interface of the test prototype 8 to the input shaft of the first drive component 20. The connection and alignment process can be performed using a laser alignment instrument to ensure that the error between the prototype input shaft and the bench input shaft is within 0.03mm. Then connect the prototype output drive shaft. Determine whether it is necessary to remove the drive shaft clearance rib 24 or to modify the output drive shaft to achieve clearance between the output drive shaft and the first drive component 20, depending on the actual situation. Determine whether additional support devices are needed based on the weight and volume of the prototype. After the mechanical structure is installed, the remaining auxiliary equipment and sensors can be installed. If the test prototype 8 is arranged in a cross pattern, only the positions of the first drive component 20 and the second drive component 21 need to be adjusted and fixed on the base 4. The installation and alignment of the remaining parts are the same as those for a straight-line arrangement.

[0043] After the test prototype 8 is installed, the operating modes of the first drive component 20, the second drive component 21, the first loading component 22, and the second loading component 23 can be selected and set according to the type of the test prototype 8 to achieve control of the prototype. Simultaneously, it can be determined whether to use auxiliary facilities such as the early fault diagnostic instrument 57, the power analyzer 58, the battery simulator 6, the cooling system 56, and the high and low temperature environment chamber 55, as needed. After the relevant facilities are correctly connected, they can all be configured on the test bench software. In addition, the equipment is equipped with a real-time control system 52 with fast signal command transmission and calculation speed, which can promptly receive commands from various dynamometers and control systems, enabling interaction between relevant commands and the host computer 50 on the test bench, ensuring that the test bench has high dynamic response characteristics.

[0044] In summary, this device has a wide range of applications and high reliability. Its adaptable bench structure can meet the testing and installation needs of various product types, reducing product development costs to some extent. Furthermore, the direct-drive structure employed in this device exhibits high dynamic response characteristics, overcoming the shortcomings of existing technologies and improving testing accuracy.

[0045] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0046] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0047] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A testing device for powertrain components of a passenger vehicle, characterized in that, It includes: Base (4); The prototype mounting assembly (1) includes a support base (10) and a prototype mounting platform (11), wherein the support base (10) and the prototype mounting platform (11) are optionally mounted on the base (4); Dynamometer assembly (2), the dynamometer assembly (2) includes a drive system and a loading system, the drive system and the loading system being detachably connected to the base (4); When the drive system and the loading system are arranged axially perpendicularly, the drive system, the loading system and the prototype mounting platform (11) form the first test structure; when the drive system and the loading system are arranged axially parallel, the drive system, the loading system and the support base (10) form the second test structure.

2. The passenger vehicle powertrain component testing apparatus as described in claim 1, characterized in that: The drive system includes a first drive component (20) and a second drive component (21), and the loading system includes a first loading component (22) and a second loading component (23). When the drive system and the loading system are arranged axially perpendicularly, the first drive component (20) and the second drive component (21) are respectively set on the corresponding two sides of the prototype mounting platform (11), and the first loading component (22) and the second loading component (23) are respectively set on the other two sides of the prototype mounting platform (11); When the drive system and the loading system are arranged axially parallel, the first drive member (20) and the first loading member (22) are located on one side of the support base (10), and the second drive member (21) and the first loading member (22) are located on the other side of the support base (10).

3. The passenger vehicle powertrain component testing apparatus as described in claim 2, characterized in that: Both the base (4) of the first driving member (20) and the base (4) of the second driving member (21) are provided with clearance grooves, and clearance ribs (24) are provided at the opening of the clearance grooves.

4. The passenger vehicle powertrain component testing apparatus as described in claim 1, characterized in that: Both the drive system and the loading system are equipped with protective components (9); Both the drive system and the loading system are equipped with a support adjustment mechanism (3) at their bottom ends. Both the drive system and the loading system are connected to the test specimen (8) via a bearing housing. The bearing housing is equipped with a torque and speed sensor, which is located close to the sample side.

5. The passenger vehicle powertrain component testing apparatus as described in claim 4, characterized in that, The support adjustment mechanism (3) includes: Top plate (34), the top of which is the connection end of the dynamometer assembly (2); The seat body, the interior of which is filled with counterweights; Z-axis adjustment mechanism, wherein the Z-axis adjustment mechanism is disposed between the top plate (34) and the base; A Y-axis adjustment mechanism is connected to the base body; An X-axis adjustment mechanism is connected to the base.

6. The passenger vehicle powertrain component testing apparatus as described in claim 5, characterized in that, The Z-axis adjustment mechanism includes: Servo motor (32); A speed reducer (31) is connected to a servo motor (32); A worm gear mechanism (33) is connected to a reducer (31); Motor support (30), which is threadedly connected to worm gear mechanism (33), and is connected to top plate (34).

7. The passenger vehicle powertrain component testing apparatus as described in claim 5, characterized in that: A guide mechanism (35), a locking mechanism (36), and an adjustment scale (37) are also provided between the top plate (34) and the base.

8. The passenger vehicle powertrain component testing apparatus as described in claim 4, characterized in that, The protective component (9) includes: Protective cover (90): The outer surfaces of the drive system and the loading system are both covered with a protective cover (90). A position sensor (91) is mounted on a protective cover (90).

9. The passenger vehicle powertrain component testing apparatus as described in claim 1, characterized in that: The support base (10) is provided with a positioning stop (100) and a guide pin (101). The prototype installation platform (11) includes an adjustable support (110) and a mounting frame (111), wherein the mounting frame (111) is connected to the top of the adjustable support (110); The base (4) has a guide groove at its top and an oil drain hole (41) inside the base (4). The guide groove is connected to the oil drain hole (41).

10. The passenger vehicle powertrain component testing apparatus as described in claim 1, characterized in that: The test device also includes a measurement and control component (5), which includes a host computer (50), a fault diagnostic instrument (57), and a data acquisition system (54). The host computer (50), the controller (57), and the data acquisition system (54) are all connected to the dynamometer component (2).

Images