CN113607437A - Test bench for double-front-axle steering power-assisted system of vehicle - Google Patents
Test bench for double-front-axle steering power-assisted system of vehicle Download PDFInfo
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- CN113607437A CN113607437A CN202111020467.9A CN202111020467A CN113607437A CN 113607437 A CN113607437 A CN 113607437A CN 202111020467 A CN202111020467 A CN 202111020467A CN 113607437 A CN113607437 A CN 113607437A
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The application relates to a test bed for a dual front axle steering assist system of a vehicle. The steering system comprises a base plate, a steering system fixing support, an oil pump driving motor and four resisting moment simulation devices. The double-front-shaft steering power-assisted system of the vehicle is supported and fixed on the bottom plate by using the steering system fixing support, and the oil pump driving motor is arranged on the steering system to provide required power for outputting steering torque by four steering torque output ends of the double-front-shaft steering power-assisted system of the vehicle so as to replace an actual engine. The four resistance torque simulation devices are respectively and correspondingly connected with the four steering torque output ends so as to simulate the resistance torque of the steering of the vehicle wheels. The matching verification of the double-front-shaft steering power-assisted system of the vehicle is realized, and the problem that a mature test bench for the steering system of the double-front-shaft steering power-assisted system of the vehicle is not available in the market due to the complex power-assisted system and load requirements of the common double-front-shaft steering power-assisted system of the commercial vehicle is solved.
Description
Technical Field
The application relates to the technical field of vehicle steering power-assisted systems, in particular to a test bed for a vehicle double-front-axle steering power-assisted system.
Background
The vehicle steering power-assisted system determines the handling performance of the whole vehicle, so that the matching verification test of the vehicle steering power-assisted system before the whole vehicle stage is very important for the performance guarantee of the whole vehicle design. In the related art, a double-front-shaft steering power-assisted system commonly used for a commercial vehicle has no mature test bed for the steering system of the double-front-shaft steering power-assisted system of the vehicle in the market due to a complex power-assisted system and load requirements.
Disclosure of Invention
Based on the above, it is necessary to provide a test bench for a dual front axle steering resistance system of a vehicle, aiming at the problem that the dual front axle steering resistance system of a commercial vehicle has no mature test bench for the dual front axle steering resistance system of the vehicle due to the complex power assisting system and the load requirement in the related art.
According to one aspect of the present application, a test rig for a dual front axle steer assist system for a vehicle is provided.
A test rig for a dual front axle power steering system for a vehicle, the dual front axle power steering system including four steering torque outputs, comprising:
a base plate;
the steering system fixing support is arranged on the bottom plate and used for supporting and fixing the double front axle steering power-assisted systems of the vehicle;
the oil pump driving motor is arranged on the steering system fixing support and is configured to provide required power for the vehicle double-front-axle power steering system to output steering torque;
the four resisting torque simulation devices are arranged on the bottom plate, and each resisting torque simulation device is in transmission connection with a steering torque output end corresponding to the double-front-axle steering power-assisted system respectively so as to provide resistance torque simulating the steering process of the vehicle for the double-front-axle steering power-assisted system of the vehicle;
and the four resisting moment simulation devices are arranged around the steering system fixing support.
In one embodiment, the resistive torque simulator comprises:
the mounting bracket is fixed on the bottom plate and is provided with an upper surface opposite to the bottom plate and a first side surface adjacent to the upper surface;
the magnetic powder brake is horizontally arranged on the upper surface of the mounting bracket;
the speed reducer is mounted on the first side face of the mounting support and is respectively connected with the magnetic powder brake and the steering torque output end so as to provide resistance torque simulating the steering process of the vehicle for the double-front-shaft steering power-assisted system of the vehicle.
In one embodiment, the resistive torque simulator further comprises:
the transition plate is fixed on the first side surface of the mounting bracket and is positioned far away from the bottom plate;
and the speed reducer is fixed on the transition plate through the speed reducer support.
In one embodiment, the resistive torque simulator further comprises a first coupling;
the output shaft of the magnetic powder brake and the input shaft of the speed reducer are coaxially connected through the first coupler.
In one embodiment, the resistive torque simulator further comprises:
the wheel adapter is rotationally fixed on the position, close to the bottom plate, of the first side surface of the mounting bracket, and the wheel adapter is connected to the corresponding steering torque output end of the wheel adapter;
and the middle transmission structure is in transmission connection with the output shaft of the speed reducer and the wheel adapter.
In one embodiment, the wheel adapter comprises:
the first adapter plate is arranged on the first side surface of the mounting bracket and is positioned close to the bottom plate;
the second adaptive plate (372) is fixedly connected with the first adaptive plate and is in transmission connection with the intermediate transmission structure;
and one side of the first adapter plate, which deviates from the mounting bracket, is rotatably connected with the steering torque output end.
In one embodiment, the intermediate transmission structure further comprises:
the output shaft of the speed reducer is connected with the second coupling so as to output the resistance moment of the speed reducer;
and the telescopic transmission shaft is connected with one end of the second coupler, which deviates from the output shaft of the speed reducer, and one end of the telescopic transmission shaft, which is far away from the second coupler, is in transmission connection with the second adapter plate.
In one embodiment, the intermediate transmission structure further comprises a guide seat;
the guide seat is sleeved on the second coupler and fixed on the transition plate.
In one embodiment, the resisting moment simulation device further comprises a plurality of limiting springs and a transition flange, and one end of the second coupling, which is far away from the output shaft of the speed reducer, and one end of the telescopic transmission shaft, which is far away from the second adapter plate, are connected through the transition flange;
one end of each limiting spring is connected to the transition flange, and the other end of each limiting spring is connected to the second adapter plate.
In one embodiment, the first adapter plate has a rotational axis about which the first adapter plate is configured to be rotatable.
The test bench for the double-front-axle steering power-assisted system of the vehicle comprises a bottom plate, a steering system fixing support, an oil pump driving motor and four resistance torque simulation devices. The double-front-shaft steering power-assisted system of the vehicle is supported and fixed on the bottom plate by using the steering system fixing support, the oil circuit change in the double-front-shaft steering power-assisted system of the vehicle is reproduced by using a real vehicle pipeline, and the action of the input end of a hydraulic steering gear of the double-front-shaft steering power-assisted system is driven to drive the action of a transmission rod system. The oil pump driving motor is arranged on a steering system, provides required power for outputting steering torque by four steering torque output ends of a double-front-shaft steering power-assisted system of a vehicle, and replaces an engine of a real vehicle. So that the four steering torque output ends output the steering torque. The four resistance torque simulation devices are respectively and correspondingly connected with the four steering torque output ends so as to simulate the resistance torque of the steering of the vehicle wheels. The matching verification of the double-front-shaft steering power-assisted system of the vehicle is realized, and the problem that a mature test bench for the steering system of the double-front-shaft steering power-assisted system of the vehicle is not available in the market due to the complex power-assisted system and load requirements of the common double-front-shaft steering power-assisted system of the commercial vehicle is solved.
Drawings
FIG. 1 is a block diagram of a test rig for a dual front axle steer assist system for a vehicle according to an embodiment of the present application;
FIG. 2 is a block diagram of a resistive torque simulator for a test stand of a dual front axle steer assist system for a vehicle according to an embodiment of the present disclosure.
The steering system comprises a base plate 1, a steering system fixing support 2, an oil pump driving motor 21, a resistance moment simulator 3, a mounting support 31, a magnetic powder brake 32, a speed reducer 33, a transition plate 34, a speed reducer support 35, a first coupler 36, a wheel adapter seat 37, a first adapter plate 371, a second adapter plate 372, an intermediate transmission structure 38, a second coupler 381, a telescopic transmission shaft 382, a guide seat 383, a limiting spring 39 and a transition flange 40.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
As described in the background art, the steering assist system of the vehicle determines the handling performance of the entire vehicle, and the steering system of the commercial vehicle needs a large torque to achieve the steering action due to the complex structure of the steering assist system. Therefore, the double-front-axle steering power-assisted system test bed needs to have larger wheel-end resistance torque simulation capacity, and the steering action can be simulated only by providing power by the real-vehicle hydraulic power-assisted system, so that no mature vehicle double-front-axle steering power-assisted system test bed exists in the market.
Therefore, it is necessary to provide a test bench for a dual front axle steering resistance system of a vehicle, aiming at the problem that the dual front axle steering resistance system of a commercial vehicle has no mature test bench for the dual front axle steering resistance system of the vehicle due to the complex power assisting system and the load requirement in the related art.
Referring to fig. 1, fig. 1 is a block diagram illustrating a test stand for a dual front axle power steering system of a vehicle according to an embodiment of the present application, which provides a test stand for a dual front axle power steering system of a vehicle including four steering torque outputs to output an output torque for providing wheel steering.
The double-front-axle steering power-assisted system of the vehicle further comprises a power-assisted oil circuit, a transmission rod system and other structures, the input end of a hydraulic steering gear in the double-front-axle steering power-assisted system is driven to act under the assistance of the hydraulic power-assisted system, and when the output torque of the four steering torque output ends of the steering power-assisted system exceeds the resistance torque of the resistance torque simulation device, the transmission rod system starts to move so as to drive double-axle front wheels of the vehicle to realize synchronous steering.
Referring to fig. 1, a test bench for a dual front axle steering assist system of a vehicle according to an embodiment of the present application includes: the steering system comprises a base plate 1, a steering system fixing support 2, an oil pump driving motor 21 and four resisting moment simulation devices 3.
Specifically, a steering system fixing bracket 2 is mounted on the base plate 1, and the steering system fixing bracket 2 is used for supporting and fixing a double front axle steering power assisting system of the vehicle. The oil pump driving motor 21 is mounted on the steering system fixing bracket 2, and the oil pump driving motor 21 is configured to provide required power for the vehicle double front axle power steering system to output the steering torque. The four resisting torque simulation devices 3 are arranged on the bottom plate 1, and each resisting torque simulation device 3 is in transmission connection with a steering torque output end corresponding to the double-front-axle steering power-assisted system respectively so as to provide resistance torque simulating the steering process of the vehicle for the double-front-axle steering power-assisted system of the vehicle. Four of the resisting moment simulation devices 3 are disposed around the steering system fixing bracket 2.
It can be understood that the double front axle steering power assisting system of the vehicle is supported and fixed on the bottom plate 1 by using the steering system fixing bracket 2, and the oil pump driving motor 21 is arranged on the steering system to provide required power for outputting steering torque by four steering torque output ends of the double front axle steering resistance system of the vehicle to replace a real engine. The oil circuit change in the double-front-axle steering power-assisted system of the vehicle is reproduced by using an actual vehicle pipeline, and the action of the input end of a hydraulic steering gear in the double-front-axle steering power-assisted system is driven to drive the action of a transmission rod system. The four resistance torque simulation devices 3 are respectively and correspondingly connected with the four steering torque output ends so as to simulate the resistance torque of the steering of the vehicle wheels.
In some embodiments of the present application, the base plate 1 is an iron plate to facilitate fixing of the steering system fixing bracket 2, the oil pump driving motor 21, the resistance torque simulation device 3 and the base plate 1, and the fixing manner is bolt fixing to facilitate mounting and dismounting of the dual front axle steering assistance system.
Referring to fig. 2, fig. 2 is a block diagram of a resistive torque simulator 3 of a test bed for a dual front axle steering assist system of a vehicle according to an embodiment of the present invention.
Further, as shown in fig. 2, the resistance moment simulator 3 includes a mounting bracket 31, a magnetic particle brake 32, and a speed reducer 33.
Specifically, the mounting bracket 31 is fixed to the base plate 1, and the mounting bracket 31 has an upper surface opposite to the base plate 1 and a first side surface adjacent to the upper surface. The magnetic powder brake 32 is horizontally mounted on the upper surface of the mounting bracket 31, and the speed reducer 33 is mounted on the first side surface of the mounting bracket 31. The axis of an output shaft of the magnetic powder brake 32 is parallel to the upper surface of the mounting bracket, and the speed reducer 33 is respectively connected with the magnetic powder brake 32 and the steering torque output end so as to provide resistance torque simulating the steering process of the vehicle for the double-front-shaft steering power-assisted system of the vehicle.
As an embodiment, in order to facilitate the installation between the magnetic particle brake 32 and the reduction gear 33 and the mounting bracket 31, the upper surface and the first side surface of the mounting bracket 31 are flat surfaces, and the magnetic particle brake 32 and the reduction gear 33 are fixed to the mounting bracket 31 by bolts.
It can be understood that the magnetic powder brake 32 generates different output torques according to different input currents, thereby realizing the simulation of different resisting torques. The input end of the speed reducer 33 is connected with the output end of the magnetic powder brake 32 to amplify the output resisting moment of the magnetic powder brake 32, so that the output resisting moment of the resisting moment simulation device 3 can meet the test requirement of a vehicle double-front-axle steering power-assisted system test bench.
In an embodiment of the present application, the resisting moment simulating device 3 further includes a transition plate 34 and a speed reducer bracket 35, wherein the transition plate 34 is fixed to the first side surface of the mounting bracket 31 and is located at a position far away from the bottom plate 1. The speed reducer 33 is fixed to the transition plate 34 by a speed reducer bracket 35. So as to realize the fixed connection between the speed reducer 33 and the mounting bracket 31.
Preferably, the transition plate 34 is fixedly connected to the end portion of the mounting bracket 31 far away from the bottom plate 1 through bolts, and the speed reducer bracket 35 is connected with the transition plate 34 through bolts, and the speed reducer 33 is connected with the speed reducer bracket 35 through bolts.
Further, the resisting moment simulation device 3 further comprises a first coupler 36, and an output shaft of the magnetic powder brake 32 and an input shaft of the speed reducer 33 are coaxially connected through the first coupler 36. To achieve amplification of the drag torque of the magnetic particle brake 32.
Preferably, the first coupling 36 is located above the upper surface of the mounting bracket 31, and the first coupling 36 is parallel to the axis of the output shaft of the magnetic powder brake 32.
In one embodiment of the present application, the resistive torque simulator 3 further includes a wheel adapter 37 and an intermediate transmission structure 38. The wheel adapter 37 is fixed on the first side of the mounting bracket 31 near the bottom plate 1, and the wheel adapter 37 is connected to the corresponding steering torque output end. The intermediate transmission structure 38 is connected to the output shaft of the speed reducer 33 and the wheel adapter 37.
Specifically, the amplified resistance torque of the output shaft of the speed reducer 33 is transmitted to the wheel adapter 37 through the intermediate transmission structure 38, and the wheel adapter 37 transmits the resistance torque to the steering torque output end to simulate the steering torque of the dual front axle steering power-assisted system.
Preferably, the wheel adapter 37 is rotatably fixed on the first side of the mounting bracket 31 near the bottom plate 1, and the intermediate transmission structure 38 is in transmission connection between the output shaft of the speed reducer 33 and the wheel adapter 37. The wheel adapter 37 has two end faces perpendicular to each other, one of the end faces is parallel or approximately parallel to the first side face of the mounting bracket 31, and the other end face is perpendicular or approximately perpendicular to the first side face of the mounting bracket 31. One section of the parallel or approximately parallel surface of the wheel adapting seat 37 and the mounting bracket 31 is fixedly connected to the bottom of the first side surface of the mounting bracket 31 through a bolt in a rotating manner, and one end surface of the wheel adapting seat 37, which is at an included angle or vertical or approximately vertical to the mounting bracket 31, is connected to the intermediate transmission structure 38 through a bolt in a transmission manner so as to bear the resistance moment transmitted to the intermediate transmission structure 38 by the speed reducer 33.
That is, the wheel adapter 37 can bear the resistance torque from the speed reducer 33 on one hand, and can bear the steering torque output by the corresponding steering torque output end of the vehicle dual front axle power steering system on the other hand, and when the steering torque output by the steering torque output end of the vehicle dual front axle power steering system is larger than the resistance torque transmitted to the wheel adapter by the corresponding speed reducer 33, the wheel adapter 37 rotates relative to the mounting bracket 31. According to the action condition of the wheel adapting seat 37, the performance matching test of the steering torque output end of the vehicle double-front-axle steering power-assisted system can be realized, and further the matching test of the vehicle double-front-axle steering power-assisted system can be realized.
In an embodiment of the present application, the wheel adapter 37 includes a first adapter plate 371 and a second adapter plate 372. The first adapting board 371 is disposed on the first side surface of the mounting bracket 31 and connected to the steering torque output end, and the second adapting board 372 is fixedly connected to the first adapting board 371 and connected to the intermediate transmission structure 38.
Specifically, the first adapting board 371 is disposed on a first side surface of the mounting bracket 31 and located near the bottom plate 1, and the second adapting board 372 is fixedly connected to the first adapting board 371 and connected to one end of the intermediate transmission structure 38. Wherein, the side of the first adapting board 371 departing from the mounting bracket 31 is connected with the steering torque output end.
Preferably, the first adapter plate 371 has two opposite surfaces, one surface of which is rotatably connected to the mounting bracket 31 and the other surface of which is fixedly connected to the steering torque output terminal, and the second adapter plate 372 is fixed to the first adapter plate 371, so that when the first adapter plate 371 rotates, the second adapter plate 372 can rotate accordingly. And one end of the second adapter plate 372 is connected with one end of the intermediate drive structure 38 to carry the drag torque from the intermediate drive structure 38.
In an embodiment of the present application, the intermediate transmission structure further includes a second coupling 381 and a retractable transmission shaft 382. The output shaft of the speed reducer 33 is connected with the second coupling 381 to output the resisting moment of the speed reducer 33, the telescopic transmission shaft 382 is connected to one end of the second coupling 381 away from the output shaft of the speed reducer 33, and one end of the telescopic transmission shaft 382 away from the second coupling 381 is in transmission connection with the second adapter plate 372.
It can be understood that, according to the transmission direction of the output resisting torque of the magnetic powder brake 32, the connection mode of the several transmission components is that the speed reducer 33, the second coupling 381, the telescopic transmission shaft 382 and the second adapter plate 372 are connected in sequence. The second coupler 381 is connected with an output shaft of the speed reducer 33 and the telescopic transmission shaft 382 to output a resisting torque, and the telescopic transmission shaft 382 is connected with the second coupler 381 and the second adaptive plate 372 to balance displacement which may occur when the second adaptive plate 372 receives the output torque of the output end of the vehicle dual-front-shaft steering power-assisted system, so as to ensure that the magnetic powder brake 32, the speed reducer 33 and the second coupler 381 in the whole resisting torque simulation device 3 are kept static relative to the mounting bracket 31.
Preferably, the output shaft of the speed reducer 33, the second coupling 381, and the retractable transmission shaft 382 are coaxially connected in sequence, and the retractable transmission shaft 382 is connected to the second adapting plate 372 by bolts.
In an embodiment of the present application, the intermediate transmission structure 38 further includes a guide seat 383, the guide seat 383 is disposed on the second coupling 381, and the guide seat 383 is fixed to the transition plate 34. Such that the second coupler 381 remains stationary relative to the mounting bracket 31.
Specifically, the guide seat 383 is located directly below the reducer 33 mounting bracket 31 to match the drive path of the resisting torque of the reducer 33.
In an embodiment of the present application, the resisting torque simulator 3 is further provided with a limiting structure, which is used to ensure that the wheel adapter plate can be ensured to be in a preset position when the wheel adapter plate is not subjected to the output torque from the output torque output end of the dual front axle steering assistance system.
Specifically, the limiting structure may be a plurality of limiting springs 39 or a plurality of limiting plates or a plurality of limiting elastic bands.
Preferably, the limiting structure comprises a plurality of limiting springs 39 and a transition flange 40, wherein one end of the second coupler 381 facing away from the output shaft of the speed reducer 33 and one end of the telescopic transmission shaft 382 facing away from the second adapting plate 372 are connected through the transition flange 40, one end of each limiting spring 39 is connected to the transition flange 40, and the other end of each limiting spring 39 is connected to the second adapting plate 372. To ensure that the second adapter plate 372 can return to the position right below the second coupling 381, i.e., right below the retractable transmission shaft 382, when displaced.
In another embodiment of the present application, the first adapter plate 371 has a rotation axis, and the first adapter plate 371 is capable of rotating around its rotation axis. So as to ensure that the first adapter plate 371 can drive the second adapter plate 372 to rotate simultaneously when the first adapter plate 371 receives the output torque from the steering torque output end of the vehicle double-front-axle steering power-assisted system and is larger than the resistance torque from the speed reducer 33, thereby realizing the matching verification of the vehicle double-front-axle steering power-assisted system.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A test rig for a dual front axle steer assist system for a vehicle, the dual front axle steer assist system including four steering torque outputs, the test rig comprising:
a base plate;
the steering system fixing support is arranged on the bottom plate and used for supporting and fixing the double front axle steering power-assisted systems of the vehicle;
the oil pump driving motor is arranged on the steering system fixing support and is configured to provide required power for the output steering torque of the vehicle double-front-axle steering power-assisted system;
the four resisting torque simulation devices are arranged on the bottom plate, and each resisting torque simulation device is in transmission connection with a steering torque output end corresponding to the double-front-axle steering power-assisted system respectively so as to provide resistance torque simulating the steering process of the vehicle for the double-front-axle steering power-assisted system of the vehicle;
and the four resisting moment simulation devices are arranged around the steering system fixing support.
2. The test rig for a dual front axle steering assist system for a vehicle of claim 1, wherein the resistive torque simulating means comprises:
the mounting bracket is fixed on the bottom plate and is provided with an upper surface opposite to the bottom plate and a first side surface adjacent to the upper surface;
the magnetic powder brake is horizontally arranged on the upper surface of the mounting bracket;
the speed reducer is mounted on the first side face of the mounting support and is respectively connected with the magnetic powder brake and the steering torque output end so as to provide resistance torque simulating the steering process of the vehicle for the double-front-shaft steering power-assisted system of the vehicle.
3. The test rig for a dual front axle steering assist system for a vehicle of claim 2, wherein the resistive torque simulating assembly further comprises:
the transition plate is fixed on the first side surface of the mounting bracket and is positioned far away from the bottom plate;
and the speed reducer is fixed on the transition plate through the speed reducer support.
4. The test rig for a dual front axle steering assist system for a vehicle of claim 3, wherein the resistive torque simulator further comprises a first coupling;
the output shaft of the magnetic powder brake and the input shaft of the speed reducer are coaxially connected through the first coupler.
5. The test rig for a dual front axle steering assist system for a vehicle of claim 4, wherein the resistive torque simulating assembly further comprises:
the wheel adapter is rotationally fixed on the position, close to the bottom plate, of the first side surface of the mounting bracket, and the wheel adapter is connected to the corresponding steering torque output end of the wheel adapter;
and the middle transmission structure is in transmission connection with the output shaft of the speed reducer and the wheel adapter.
6. The test rig for a dual front axle steering assist system for a vehicle of claim 5, wherein the wheel adapter includes:
the first adapter plate is arranged on the first side surface of the mounting bracket and is positioned close to the bottom plate;
the second adapter plate is fixedly connected with the first adapter plate and is in transmission connection with the intermediate transmission structure;
and one side of the first adapter plate, which deviates from the mounting bracket, is rotatably connected with the steering torque output end.
7. The test rig for a dual front axle steer assist system of a vehicle of claim 6, wherein the intermediate drive configuration further comprises:
the output shaft of the speed reducer is connected with the second coupling so as to output the resistance moment of the speed reducer;
and the telescopic transmission shaft is connected with one end of the second coupler, which deviates from the output shaft of the speed reducer, and one end of the telescopic transmission shaft, which is far away from the second coupler, is in transmission connection with the second adapter plate.
8. The test rig for a dual front axle steering assist system for a vehicle of claim 7, wherein the intermediate drive configuration further includes a shoe;
the guide seat is sleeved on the second coupler and fixed on the transition plate.
9. The test bench for a dual front axle steering assist system of a vehicle of claim 8, wherein the resistive torque simulation apparatus further comprises a plurality of limit springs and a transition flange;
one end of the second coupling, which is far away from the output shaft of the speed reducer, is connected with one end of the telescopic transmission shaft, which is far away from the second adapter plate, through the transition flange;
one end of each limiting spring is connected to the transition flange, and the other end of each limiting spring is connected to the second adapter plate.
10. The test rig for a dual front axle steering assist system for a vehicle of claim 6, wherein the first adapter plate has an axis of rotation about which the first adapter plate is configured to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111020467.9A CN113607437B (en) | 2021-09-01 | 2021-09-01 | Test bed for vehicle double front axle steering power-assisted system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111020467.9A CN113607437B (en) | 2021-09-01 | 2021-09-01 | Test bed for vehicle double front axle steering power-assisted system |
Publications (2)
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118372882A (en) * | 2024-06-24 | 2024-07-23 | 质子汽车科技有限公司 | Vehicle multi-axis steering control method and device with double front axles cooperatively controlled |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005172528A (en) * | 2003-12-09 | 2005-06-30 | Koyo Seiko Co Ltd | Test system for electric power steering device |
| KR20060058998A (en) * | 2004-11-26 | 2006-06-01 | 현대자동차주식회사 | Endurance tester of steering system for vehicle |
| CN101762350A (en) * | 2010-01-19 | 2010-06-30 | 中国汽车技术研究中心 | Centrally-mounted motorcar chassis electricity dynamometer |
| EP2259041A1 (en) * | 2009-06-05 | 2010-12-08 | Emmetec S.r.l. | Universal test device for electric power steering units |
| CN103217306A (en) * | 2013-03-22 | 2013-07-24 | 西安理工大学 | Experiment table for six-linkage multi-axial steering system |
| CN203745211U (en) * | 2014-02-12 | 2014-07-30 | 成都孔辉汽车科技有限公司 | Steering system test bench |
| CN106248406A (en) * | 2016-09-06 | 2016-12-21 | 吉林大学 | Commercial car novel electric hydraulic steering system simulator stand |
| CN108020433A (en) * | 2017-12-19 | 2018-05-11 | 浙江工业大学 | Utilize the method for electric boosting steering system test platform simulation test performance |
| CN113029599A (en) * | 2021-04-12 | 2021-06-25 | 长春速建新技术开发有限公司 | Test bed for detecting and adjusting double front axle vehicle |
| CN213985720U (en) * | 2020-12-29 | 2021-08-17 | 一汽解放汽车有限公司 | Steering system test bench output end loading device and steering system test bench |
-
2021
- 2021-09-01 CN CN202111020467.9A patent/CN113607437B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005172528A (en) * | 2003-12-09 | 2005-06-30 | Koyo Seiko Co Ltd | Test system for electric power steering device |
| KR20060058998A (en) * | 2004-11-26 | 2006-06-01 | 현대자동차주식회사 | Endurance tester of steering system for vehicle |
| EP2259041A1 (en) * | 2009-06-05 | 2010-12-08 | Emmetec S.r.l. | Universal test device for electric power steering units |
| CN101762350A (en) * | 2010-01-19 | 2010-06-30 | 中国汽车技术研究中心 | Centrally-mounted motorcar chassis electricity dynamometer |
| CN103217306A (en) * | 2013-03-22 | 2013-07-24 | 西安理工大学 | Experiment table for six-linkage multi-axial steering system |
| CN203745211U (en) * | 2014-02-12 | 2014-07-30 | 成都孔辉汽车科技有限公司 | Steering system test bench |
| CN106248406A (en) * | 2016-09-06 | 2016-12-21 | 吉林大学 | Commercial car novel electric hydraulic steering system simulator stand |
| CN108020433A (en) * | 2017-12-19 | 2018-05-11 | 浙江工业大学 | Utilize the method for electric boosting steering system test platform simulation test performance |
| CN213985720U (en) * | 2020-12-29 | 2021-08-17 | 一汽解放汽车有限公司 | Steering system test bench output end loading device and steering system test bench |
| CN113029599A (en) * | 2021-04-12 | 2021-06-25 | 长春速建新技术开发有限公司 | Test bed for detecting and adjusting double front axle vehicle |
Non-Patent Citations (1)
| Title |
|---|
| 郭艳玲等: "电动助力转向器试验台硬件系统研究", 节能技术, no. 01, 26 January 2014 (2014-01-26), pages 67 - 70 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118372882A (en) * | 2024-06-24 | 2024-07-23 | 质子汽车科技有限公司 | Vehicle multi-axis steering control method and device with double front axles cooperatively controlled |
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| CN113607437B (en) | 2024-04-12 |
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