CN110779734A - Test bench for evaluating intelligent driving auxiliary function of whole vehicle - Google Patents
Test bench for evaluating intelligent driving auxiliary function of whole vehicle Download PDFInfo
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- CN110779734A CN110779734A CN201911187516.0A CN201911187516A CN110779734A CN 110779734 A CN110779734 A CN 110779734A CN 201911187516 A CN201911187516 A CN 201911187516A CN 110779734 A CN110779734 A CN 110779734A
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- 238000012360 testing method Methods 0.000 title claims abstract description 26
- 239000006096 absorbing agent Substances 0.000 claims abstract description 17
- 230000035939 shock Effects 0.000 claims abstract description 17
- 230000000087 stabilizing effect Effects 0.000 claims description 11
- 238000011156 evaluation Methods 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 4
- 238000011161 development Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007849 functional defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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Abstract
The invention provides a test bench for evaluating the intelligent driving auxiliary function of a whole vehicle, which comprises a fixed frame, a rotating frame, a sliding frame, drivers, shock absorbers and a torque sensor, wherein the fixed frame is fixed on the ground, the rotating frame is rotatably connected to one end of the fixed frame, the sliding frame is slidably connected to the rotating frame, four groups of drivers are pairwise arranged on the fixed frame and the sliding frame, the shock absorbers are arranged on the drivers, and the torque sensor is slidably connected to the ground on one side of the rotating frame.
Description
Technical Field
The invention relates to the field of automobile test equipment, in particular to a test bench for evaluating intelligent driving auxiliary functions of a whole automobile.
Background
The intelligent auxiliary driving automobile is characterized in that advanced vehicle-mounted sensors, controllers, actuators and other devices are carried, modern communication and network technologies are combined, intelligent information exchange and sharing between automobiles and people, automobiles, roads, clouds and the like are realized, the intelligent auxiliary driving automobile has the functions of complex environment sensing, intelligent decision, cooperative control and the like, safe, efficient, comfortable and energy-saving driving can be realized, a new generation of automobile which is operated by replacing people can be finally realized, and the optimal driving and automatic driving of the automobile can be realized.
Intelligent assisted driving of automobiles involves more complex functions and applications, and also makes development and testing challenging. The working condition scene is infinite, the harsh and complex working conditions can not be required or reproduced, and repeated verification cannot be performed, so that the validity and the reliability of the automatic driving function under any condition can be verified only after long-term drive test, meanwhile, besides the test of public roads, special test verification sites are built at home and abroad, but the development and verification requirements of the complex function of the intelligent auxiliary driving automobile cannot be met in the aspects of development time, cost and flexibility; the test evaluation of the intelligent assistant driving automobile is to mine hidden functional defects, so that the traditional automobile test method cannot meet the test certification requirement of the intelligent assistant driving automobile.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a test bench for evaluating the intelligent driving auxiliary function of a whole vehicle, so as to overcome the defects in the prior art.
In order to achieve the purpose, the invention provides a test bench for evaluating the intelligent driving auxiliary function of a whole vehicle, which comprises a fixed frame, a rotating frame, a sliding frame, drivers, shock absorbers and a torque sensor, wherein the fixed frame is fixed on the ground, the rotating frame is rotatably connected to one end of the fixed frame, the sliding frame is slidably connected to the rotating frame, four groups of drivers are pairwise arranged on the fixed frame and the sliding frame, the shock absorbers are arranged on the drivers, the torque sensor is slidably connected to the ground on one side of the rotating frame, sliding grooves are formed in the fixed frame and the sliding frame, the length direction of each sliding groove is the width direction of the fixed frame, and the bottoms of the shock absorbers are slidably connected in the sliding grooves, so.
As a further explanation of the present invention, it is preferable that the carriage sliding direction is a longitudinal direction of the mount.
As a further description of the present invention, preferably, a stable disc is fixedly connected to one end of the rotating frame away from the fixed frame, and the stable disc is rotatably connected to the torque sensor.
As a further illustration of the present invention, preferably, the stabilizing disk is a metal disk in the shape of a sector having a sector angle of 50 ° to 60 °.
As a further description of the present invention, preferably, the joint of the fixed frame and the rotating frame is an arc surface, and the center of the arc surface and the middle of the connecting line of the driver on the rotating frame are located on the same vertical line.
As a further description of the present invention, it is preferable that the shock absorber includes a frame slidably coupled to the slide groove, and a spring inclined in a length direction and having both ends hinged to the frame at both sides of the actuator.
As a further description of the present invention, it is preferable that the output end of the driver is fixedly connected with a connecting disc, and annular through holes are arranged on the connecting disc at intervals.
As a further illustration of the invention, it is preferred that the driver outside the connection disc is externally sheathed with a sheath, which sheath covers the connection disc.
As a further explanation of the present invention, preferably, an inclined upper slideway is fixedly connected to a side of the fixing frame away from the rotating frame, a bottom end face of the upper slideway abuts against the ground, and a top end face of the upper slideway coincides with a top end face of the fixing frame.
The invention has the following beneficial effects:
the four groups of drivers are respectively connected with the four hubs of the automobile, the drivers apply various force feedbacks to the rotating hubs to simulate the running states of the automobile on different roads, and the detection and debugging of the intelligent driving auxiliary system in the automobile improve the accuracy of the intelligent driving auxiliary system and solve the problem that a dynamic model in HIL simulation is not fine enough.
Drawings
FIG. 1 is a diagram of the overall assembly effect of the present invention;
FIG. 2 is an enlarged view of A as in FIG. 1;
FIG. 3 is a bottom view of the present invention;
fig. 4 is a front view of the present invention.
Description of reference numerals:
1. a fixed mount; 11. an upper slideway; 12. a lower slideway; 2. rotating the frame; 3. a carriage; 31. a front slideway; 32. a rear chute; 33. a chute; 4. a driver; 41. a connecting disc; 42. a sheath; 5. a shock absorber; 51. a rack; 52. a spring; 6. a torque sensor; 61. the disc is stabilized.
Detailed Description
To further understand the structure, characteristics and other objects of the present invention, the following detailed description is given with reference to the accompanying preferred embodiments, which are only used to illustrate the technical solutions of the present invention and are not to limit the present invention.
The utility model provides a test bench for putting in order car intelligence driving auxiliary function evaluation, combine figure 1, fig. 4, including mount 1, revolving rack 2, balladeur train 3, driver 4, bumper shock absorber 5 and torque sensor 6, mount 1 is fixed subaerial, revolving rack 2 rotates to be connected in 1 one end of mount, 3 sliding connection of balladeur train are on revolving rack 2, 4 two liang erections of four group's drivers are on mount 1 and balladeur train 3, bumper shock absorber 5 erects on driver 4, 6 sliding connection of torque sensor are subaerial in 2 one sides of revolving rack.
Referring to fig. 1 and 4, the fixed frame 1 and the rotating frame 2 are both square metal frames, the fixed frame 1 abuts against one end of the rotating frame 2, the abutting surface is an arc surface, and the center of the arc surface coincides with the rotation center of the rotating frame 2, so that the rotating frame 2 can rotate relative to the fixed frame 1; two sides of one end of the fixing frame 1, which is far away from the expert 2, are fixedly connected with an inclined upper slideway 11, the bottom end surface of the upper slideway 11 is abutted against the ground, and the top end surface of the upper slideway 11 is superposed with the top end surface of the fixing frame 1; the wheel to be tested can be smoothly driven onto the fixed frame 1 along the upper slideway 11 to avoid bumping and vibration, and the fixed frame 1 at the other side of the upper slideway 11 is fixedly connected with the lower slideway 12 to drive the wheel to be tested off the fixed frame 1.
With reference to fig. 1 and 4, the sliding direction of the carriage 3 is the length direction of the fixed frame 1, the carriage 3 slides on the rotating frame 2, and the distance between the driver 4 on the carriage 3 and the driver 4 on the fixed frame 1 can be adjusted, so that the test bench can detect automobiles with different wheelbases and has high universality; the balladeur train 3 is located 2 length direction both ends of revolving rack and has linked firmly preceding slide 31 and the back slide 32 of slope respectively, and preceding slide 31 and back slide 32 bottom all with revolving rack 2 butt, preceding slide 31 and back slide 32 top end face all with 3 top end faces coincidence of balladeur train to the car that makes the examination of awaiting measuring can go up smoothly or go down the revolving rack 3.
With reference to fig. 1 and 2, the fixed frame 1 and the carriage 3 are both provided with sliding grooves 33, the length direction of the sliding grooves 33 is the width direction of the fixed frame 1, the bottoms of the shock absorbers 5 are slidably connected in the sliding grooves 33, and the effect of adjusting the distance between the drivers 4 with coincident axes can be realized by adjusting the positions of the shock absorbers 5 in the sliding grooves 33; the driver 4 is a torque loader, wherein a torque sensor is further arranged in the driver 4, the output end of the driver 4 is fixedly connected with a connecting disc 41, and annular through holes are formed in the connecting disc 41 at intervals so as to be fixedly connected with a hub of an automobile through bolts; the protective sleeve 42 is sleeved outside the driver 4 outside the connecting disc 41, the protective sleeve 42 covers the connecting disc 41, the outer diameter of the protective sleeve 42 is about 10mm smaller than the outer diameter of a wheel, and when a simulation experiment is carried out, the protective sleeve 42 can be in contact with the fixed frame 1 and the sliding frame 3 to simulate the height of a vehicle during normal running.
With reference to fig. 1 and 3, the shock absorber 5 includes a frame 51 and a spring 52, the frame 51 is slidably connected to the sliding slot 33, the spring 52 is inclined in the length direction, and both ends of the spring are hinged to the frame 51 on both sides of the driver 4, so that the vibration of the driver 4 during the simulated driving of the vehicle can be reduced, and the damage probability of the driver 4 can be reduced; the one end of revolving rack 2 keeping away from mount 1 has linked firmly stabilizing disc 61, and stabilizing disc 61 rotates with torque sensor 6 to be connected, and stabilizing disc 61 is fan-shaped metal disc, and stabilizing disc 61 fan-shaped angle is 50 ~ 60, sets up the weight that stabilizing disc 61 increases revolving rack 2, and stabilizing disc 61 rotates with torque sensor 6 to be connected simultaneously, reducible torque sensor 6's displacement volume to make torque sensor 6 can be better receive the moment response.
Referring to fig. 1 and 2, when an automobile needs to be detected, the automobile is firstly driven onto a fixed frame 1 and a sliding frame 3 from each slide way, wherein front wheels of the automobile are located on the sliding frame 3, rear wheels of the automobile are located on the fixed frame 1, after the automobile is stopped stably, the automobile is jacked up by using a jack, the wheels are not in contact with the fixed frame 1 and the sliding frame 3, the four wheels of the automobile are disassembled, then a shock absorber 5 is moved along a sliding groove 33, a driver 4 is close to the wheels, the jack is slowly lowered, a through hole of a connecting disc 41 is coincided with an axis of a mounting hole on an automobile hub, then the hub and the connecting disc are fixed by using bolts, and the jack releases force, so that the driver 4 supports the automobile.
With reference to fig. 1 and 4, after the automobile is fixed, scene signals simulated by simulation software, such as vision, millimeter waves, ultrasonic radar, laser radar and other signals, are injected into the automobile, the intelligent driving auxiliary system controls the hub of the automobile to rotate through the injected signals, the driver 4 collects data of the rotating speed and torque of the hub and gives force feedback to the hub according to the scene signals so as to simulate different road conditions, namely road conditions such as a flat road, a rugged mountain road and a depressed rural area road, the intelligent driving auxiliary system is subjected to communication debugging by using a CAN signal, corresponding trafficability indexes are set for each test case, data calculation is performed through the collected information, test conditions are judged and adjusted, and the problem that a dynamic model in HIL simulation is not fine enough is solved.
It should be noted that the above summary and the detailed description are intended to demonstrate the practical application of the technical solutions provided by the present invention, and should not be construed as limiting the scope of the present invention. Various modifications, equivalent substitutions, or improvements may be made by those skilled in the art within the spirit and principles of the invention. The scope of the invention is to be determined by the appended claims.
Claims (9)
1. A test bench for evaluating the intelligent driving auxiliary function of a whole vehicle is characterized by comprising a fixed frame (1), a rotating frame (2), a sliding frame (3), drivers (4), shock absorbers (5) and a torque sensor (6), wherein the fixed frame (1) is fixed on the ground, the rotating frame (2) is rotatably connected to one end of the fixed frame (1), the sliding frame (3) is slidably connected to the rotating frame (2), every two of four groups of drivers (4) are erected on the fixed frame (1) and the sliding frame (3), the shock absorbers (5) are erected on the drivers (4), the torque sensor (6) is slidably connected to the ground on one side of the rotating frame (2), wherein,
all seted up spout (33) on mount (1) and balladeur train (3), spout (33) length direction is the width direction of mount (1), and bumper shock absorber (5) bottom sliding connection is in spout (33) to make the interval diminish between driver (4).
2. The test bench for the intelligent driving auxiliary function evaluation of the whole vehicle according to the claim 1 is characterized in that the sliding direction of the sliding frame (3) is the length direction of the fixing frame (1).
3. The test bench for the intelligent driving auxiliary function evaluation of the whole vehicle as claimed in claim 1, wherein a stabilizing disc (61) is fixedly connected to one end of the rotating frame (2) far away from the fixed frame (1), and the stabilizing disc (61) is rotatably connected with the torque sensor (6).
4. The test bench for intelligent driving auxiliary function evaluation of the whole vehicle as claimed in claim 3, wherein the stabilizing disc (61) is a fan-shaped metal disc, and the fan-shaped angle of the stabilizing disc (61) is 50-60 °.
5. The test bench for the intelligent driving auxiliary function evaluation of the whole vehicle as claimed in claim 4, wherein the joint of the fixed frame (1) and the rotating frame (2) is an arc-shaped surface, and the circle center of the arc-shaped surface and the middle of the connecting line of the driver (4) on the rotating frame (2) are positioned on the same vertical line.
6. The test bench for the intelligent driving auxiliary function evaluation of the whole vehicle as claimed in claim 1, wherein the shock absorber (5) comprises a frame (51) and a spring (52), the frame (51) is slidably connected to the sliding groove (33), the spring (52) is inclined in the length direction, and two ends of the spring are hinged to the frame (51) on two sides of the driver (4).
7. The test bench for the intelligent driving auxiliary function evaluation of the whole vehicle as claimed in claim 1, wherein the output end of the driver (4) is fixedly connected with a connecting disc (41), and annular through holes are arranged on the connecting disc (41) at intervals.
8. The test bench for the intelligent driving auxiliary function evaluation of the whole vehicle as claimed in claim 7, wherein a protective sleeve (42) is sleeved outside the driver (4) outside the connecting disc (41), and the protective sleeve (42) covers the connecting disc (41).
9. The test bench for evaluating the intelligent driving auxiliary function of the whole vehicle as claimed in claim 1, wherein an inclined upper slideway (11) is fixedly connected to one side of the fixed frame (1) far away from the rotating frame (2), the bottom end surface of the upper slideway (11) is abutted against the ground, and the top end surface of the upper slideway (11) is overlapped with the top end surface of the fixed frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911187516.0A CN110779734A (en) | 2019-11-28 | 2019-11-28 | Test bench for evaluating intelligent driving auxiliary function of whole vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911187516.0A CN110779734A (en) | 2019-11-28 | 2019-11-28 | Test bench for evaluating intelligent driving auxiliary function of whole vehicle |
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| CN110779734A true CN110779734A (en) | 2020-02-11 |
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| CN201911187516.0A Pending CN110779734A (en) | 2019-11-28 | 2019-11-28 | Test bench for evaluating intelligent driving auxiliary function of whole vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112033694A (en) * | 2020-08-31 | 2020-12-04 | 安徽江淮汽车集团股份有限公司 | Natural driving working condition rack test method, device, equipment and storage medium |
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| CN209542115U (en) * | 2019-04-12 | 2019-10-25 | 江苏盛海智能科技有限公司 | Unmanned intelligent driving turns to rack |
| CN211178983U (en) * | 2019-11-28 | 2020-08-04 | 中汽数据(天津)有限公司 | Test bench for evaluating intelligent driving auxiliary function of whole vehicle |
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2019
- 2019-11-28 CN CN201911187516.0A patent/CN110779734A/en active Pending
Patent Citations (8)
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| CN102944431A (en) * | 2012-11-30 | 2013-02-27 | 北京汽车股份有限公司 | Body-in-white torsional fatigue testing system and method thereof |
| WO2015062772A1 (en) * | 2013-10-29 | 2015-05-07 | Roman Schlicker | Mobile vehicle test rig |
| CN107702927A (en) * | 2017-09-30 | 2018-02-16 | 安徽理工大学 | Turn to and brake actuator forfends experimental rig in the deviation of ring |
| CN108961913A (en) * | 2018-09-07 | 2018-12-07 | 天津卡达克数据有限公司 | It is man-machine to drive altogether and unmanned technology and test commercial vehicle intelligent driving simulator |
| CN209102390U (en) * | 2018-12-05 | 2019-07-12 | 安徽安凯汽车股份有限公司 | A kind of tire rack tooling in the test of automobile rotating hub |
| CN109949651A (en) * | 2019-03-29 | 2019-06-28 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | It is a kind of to drive assistant experiment and the rack of practice-training teaching this vehicle system for intelligent network connection automobile intelligent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112033694A (en) * | 2020-08-31 | 2020-12-04 | 安徽江淮汽车集团股份有限公司 | Natural driving working condition rack test method, device, equipment and storage medium |
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