CN112345271A - Vehicle dynamic rolling test equipment and method thereof - Google Patents
Vehicle dynamic rolling test equipment and method thereof Download PDFInfo
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- CN112345271A CN112345271A CN202011250377.4A CN202011250377A CN112345271A CN 112345271 A CN112345271 A CN 112345271A CN 202011250377 A CN202011250377 A CN 202011250377A CN 112345271 A CN112345271 A CN 112345271A
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- 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
Abstract
The invention discloses a vehicle dynamic rolling test device and a method thereof. The equipment comprises a rolling test device, wherein the rolling test device comprises a test surface, the test surface is one or more of a sediment surface, an upper slope surface and a lower slope surface, and the test surface is used for providing different rolling speeds and rolling angles for the vehicle to be tested so as to enable the lateral acceleration of the vehicle to be tested to reach the critical acceleration; the critical acceleration is the lateral acceleration of the vehicle to be tested subjected to rollover according to the vehicle rollover model. After the traction system accelerates the vehicle to be tested to a preset test speed, the vehicle to be tested passes through the test surface, so that the data acquisition device acquires working condition test data of the vehicle to be tested in the running and rolling processes in real time, and the working condition test data is used for calibrating vehicle design. According to the invention, through different working condition simulation, relevant working condition test data can be accumulated and used for calibration of vehicle design, the development capability of the safety performance of the whole vehicle is improved, and the hidden danger to personnel after the vehicle rollover accident is reduced.
Description
Technical Field
The invention relates to the technical field of vehicle-mounted entertainment, in particular to a vehicle dynamic rolling test device and a vehicle dynamic rolling test method.
Background
Air bags are a very important part of passive safety systems for automobiles, and the reliability of the air bags is a very critical index in the design process of the air bags. If the explosion is missed, delayed or error, the passenger will be hurt. The main detection methods in the opinion levy draft of the existing mandatory standard laws and regulations, namely the method and the requirement for the misoperation test of the automobile safety air bag system, are three types: static tests, roadblock tests and rough road tests. The tests aiming at the side air bag of the automobile mainly comprise a basketball impact test, a bicycle simulation impact test and a side shoulder impact test, wherein the side surface of the automobile is impacted by an impacting object, and the maloperation safety of the side air bag is checked. The remaining dynamic tests are all crash tests with the vehicle in its normal attitude.
However, various rollover conditions can occur in the normal running process of the vehicle, for example, rollover conditions are common in mountain roads, sand, rainy days or north, and due to the fact that the rollover conditions exist in states of different degrees, the side air bags achieve different functions according to different conditions. However, the current airbag ECU verification test cannot realize functional verification of the vehicle under a dynamic rolling condition, and the vehicle designed according to the existing vehicle design calibration standard still has great hidden danger to personnel after a rollover accident of the vehicle.
Disclosure of Invention
The invention aims to provide a vehicle dynamic rolling test device and a vehicle dynamic rolling test method, which can solve the problems that the function verification of a vehicle under a dynamic rolling condition cannot be realized by the conventional airbag ECU verification test, and the vehicle designed according to the conventional vehicle design calibration standard still has great hidden danger to personnel after a vehicle rollover accident.
The embodiment of the invention provides a vehicle dynamic rolling test device which comprises a rolling test device, wherein the rolling test device comprises a test surface, the test surface is one or more of a sediment surface, an upper slope surface and a lower slope surface, and the test surface is used for providing different rolling speeds and rolling angles for a vehicle to be tested so as to enable the lateral acceleration of the vehicle to be tested to reach the critical acceleration; the critical acceleration is the lateral acceleration on which the vehicle to be detected rolls over according to a vehicle roll-over model;
after a traction system accelerates a vehicle to be tested to a preset test speed, the vehicle to be tested passes through the test surface, so that a data acquisition device acquires working condition test data of the vehicle to be tested in the running and rolling processes in real time; and the working condition test data is used for calibrating vehicle design.
The embodiment of the invention also provides a vehicle dynamic rolling test method, which is applied to the vehicle dynamic rolling test equipment in the embodiment, and the method comprises the following steps:
establishing a vehicle rollover model, and calculating the critical acceleration of the vehicle to be detected during rollover according to the vehicle rollover model; the critical acceleration is a lateral acceleration suffered by the rollover of the vehicle to be tested;
accelerating the vehicle to be tested to a preset test speed through a traction system, and enabling the vehicle to be tested to pass through the test surface; the test surface is used for providing different rolling speeds and rolling angles for the vehicle to be tested so that the lateral acceleration of the vehicle to be tested reaches the critical acceleration;
acquiring working condition test data of the vehicle to be tested in the driving and rolling processes in real time through a data acquisition device; and the working condition test data is used for calibrating vehicle design.
Compared with the prior art, the vehicle dynamic rolling test equipment in the embodiment of the invention can simulate various rolling working conditions in real road conditions, and newly adds a test verification method of the vehicle in the development process of the airbag ECU, and can accumulate relevant dynamic rolling working condition test data through simulation of different working conditions, so that the dynamic rolling working condition test data can be used for calibration of vehicle design, the development capacity of the safety performance of the whole vehicle is improved, the hidden danger of personnel after a vehicle rolling accident is reduced, and the independent capacity of new technology research and development is improved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a vehicle rollover testing apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a method for dynamic rollover testing of a vehicle in accordance with an embodiment of the present invention;
FIG. 3 is a schematic diagram of a rollover model of a vehicle according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a sediment rollover testing device in a vehicle dynamic rollover testing apparatus according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a hill-roll testing device in a dynamic roll testing apparatus for a vehicle according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a trench rollover testing apparatus in a dynamic rollover testing device of a vehicle according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be understood that the step numbers used herein are for convenience of description only and are not intended as limitations on the order in which the steps are performed.
It is to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The terms "comprises" and "comprising" indicate the presence of the described features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
The term "and/or" refers to and includes any and all possible combinations of one or more of the associated listed items.
Referring to fig. 1, an embodiment of the present invention provides a vehicle dynamic roll testing apparatus 100, including a roll testing device 10, where the roll testing device 10 includes a testing surface 101, the testing surface 101 is one or more of a sediment surface, an upper slope surface and a lower slope surface, and the testing surface 101 is used to provide different roll speeds and roll angles for a vehicle 300 to be tested, so that the vehicle 300 to be tested reaches a critical acceleration; the critical acceleration is a lateral acceleration to which the vehicle 300 to be tested is subjected to rollover calculation according to the vehicle rollover model. After the traction system 200 accelerates the vehicle 300 to be tested to a preset test speed, the vehicle 300 to be tested passes through the test surface 101, so that the data acquisition device acquires working condition test data of the vehicle 300 to be tested in the running and rolling processes in real time; and the working condition test data is used for calibrating the vehicle design.
Correspondingly, referring to fig. 2, an embodiment of the present invention further provides a vehicle dynamic rollover testing method, which is applied to the vehicle dynamic rollover testing apparatus 100, and the method includes the following steps:
s10, establishing a vehicle rollover model, and calculating the critical acceleration of the vehicle 300 to be detected during rollover according to the vehicle rollover model; wherein the critical acceleration is a lateral acceleration to which the vehicle 300 to be tested is subjected to rollover;
s20, accelerating the vehicle 300 to be tested to a preset test speed through the traction system 200 so as to enable the vehicle 300 to be tested to pass through the test surface 101; the test surface 101 is used for providing different rolling speeds and rolling angles for the vehicle 300 to be tested so as to enable the vehicle 300 to be tested to reach critical acceleration;
s30, collecting working condition test data of the vehicle 300 to be tested in the driving and rolling processes in real time through a data collecting device; and the working condition test data is used for calibrating the vehicle design.
It should be noted that the data acquisition device includes an on-vehicle data acquisition instrument, a high-speed camera and a speed tester. The vehicle dynamic roll test device 100 in the embodiment of the present invention may include a data acquisition device itself, or may be externally provided with a data acquisition device in other devices, so as to acquire working condition test data of the vehicle 300 to be tested in real time during the driving and rolling processes, where the working condition test data includes, but is not limited to, vehicle speed during rollover, rollover acceleration, action time of a side air curtain and a side air bag, and the like, and is not limited specifically herein.
In the embodiment of the present invention, the dynamic roll test device 100 for a vehicle and the whole test are designed on the premise that the working condition of the roll test of the whole vehicle is determined and the real traffic accident data needs to be analyzed. Three types of rollover reasons obtained after analysis according to NHTSA statistical data: the method comprises the steps that when an automobile runs at a high speed, the side turning is caused by rapid change of an inclination angle of an automobile body after wheels are affected by ground obstacles; secondly, when the automobile is on a road surface with poor road conditions, the automobile sideslips due to the change of the gradient of the road surface, and when the lateral acceleration of the automobile body exceeds a limit value, the vertical counter force of wheels inside the automobile is zero, so that the automobile turns on one side; and thirdly, the automobile sideslips on the road surface with poor adhesion condition or is not impacted by side obstacles, so that the automobile is caused to turn over. After the three rollover conditions are selected, the actual test speed of the rollover conditions of the vehicle can be obtained by calculating the design parameters of the vehicle and the actual rollover conditions.
For this purpose, the invention first establishes a vehicle rollover model. It can be found from theoretical knowledge that when the vertical force on one side of the vehicle is zero, the vehicle is caused to roll over. Ignoring the variability of the vehicle, the vehicle is cured and under normal stress conditions, the vehicle is subjected primarily to gravity, centrifugal forces, road support forces, and lateral forces, resulting in the following schematic diagram shown in fig. 3.
According to the stable state of the vehicle, the sum of the moments of the contact points of the wheels on one side of the automobile and the ground is zero, and the following formula can be obtained:
obtained after transformation by formula (1):
wherein A is the wheel base of the automobile, m is the mass of the automobile, hgAs height of mass of the vehicle, ayAs lateral acceleration, alpha as road inclination gradient, FyiSupporting the opposing force for the inner tyre, FyoSupporting the opposing force for the outboard tire.
From equation (2), the following lateral acceleration ayIncreasing the reverse force F of the inner side tyre support of the automobileyiWith a consequent reduction in the force F acting in the opposite direction of the inner tyreyiWhen the vehicle reaches zero, the vehicle cannot keep balance in the rolling plane and starts to roll over. The lateral acceleration a suffered by the vehicle rollover at the momentyIs the critical acceleration
Wherein the critical acceleration ayThe automobile wheel base A and the automobile mass height h from the vehicle 300 to be detectedgAnd a critical acceleration a corresponding to parameters of different vehicles 300 to be tested when the road inclination alpha is constantyInstead, it can be calculated in actual testing.
Then, simulating a critical acceleration value of the vehicle rollover through the model, calculating a speed range of the test vehicle under the corresponding working condition through a simulation means, and reproducing the speed range in the vehicle dynamic rollover test device 100 to verify the performance of the air bag ECU under the dynamic rollover working condition, thereby verifying whether the test data of the vehicle meets the design requirement of the whole vehicle safety or not, and using the obtained working condition test data for the calibration of the vehicle design to further develop the safety performance of the whole vehicle. Through the calibration of enriching the vehicle design, the ECU can more accurately control the actions of the side air curtain and the side air bag, thereby protecting the passengers and reducing the maintenance cost.
For a better understanding of the inventive concept, the vehicle dynamic rollover testing apparatus 100 and the vehicle dynamic rollover testing method according to the embodiments of the present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 4, in one embodiment, the rolling test device 10 includes a silt rolling test device 11, and the test surface 101 is a silt surface; the silt rolling test device 11 comprises a first vehicle running platform, a vehicle rolling silt area, a damping device and a first control console. The first vehicle running platform is arranged opposite to a vehicle rolling sediment area and is used for bearing a vehicle 300 to be tested and is fixedly connected with the traction system 200, and the first control console is electrically connected with the traction system 200. The damping device comprises a first damper and a second damper, wherein the first damper and the second damper are respectively fixed on the horizontal ground and are respectively used for decelerating the vehicle 300 to be tested; the buffer degree of the first damper is larger than that of the second damper.
Referring to fig. 4, in one embodiment, the first damper includes a spring damper (r) and the second damper includes a springless damper (c). The length of the spring-free damper is adjustable, and the length of the spring-free damper is not adjustable, so that the damping degrees of the spring-free damper and the spring damper are different.
The silt tumbling test device 11 in the embodiment of the invention is also called a Soil test device. The Soil test device comprises two test structures: one is including vehicle tire baffle (C), another is not including vehicle tire baffle (C), and vehicle tire baffle (C) can be used to adjust the rolling gesture of vehicle 300 under test in the motion process, the rolling gesture includes roll speed and roll angle. The two test structures provide different rolling speeds and rolling angles for the vehicle 300 to be tested, so that the vehicle 300 to be tested respectively reaches critical acceleration, and working condition test data of the vehicle 300 to be tested in the running and rolling processes are respectively obtained, and the two test structures are used for calibrating vehicle design.
Specifically, the device without the vehicle tire baffle plate in the Soil test simulates the working condition that the vehicle enters a beach or a Soil pile after sideslipping. Two different dampers were used: the length-adjustable spring-free damper (c) and the length-unadjustable spring damper (c) achieve the speed reduction curve required by the test to realize the working condition that the vehicle turns over into the beach under different postures.
The device with the tire baffle of the vehicle in the Soil test simulates the working condition that the vehicle rolls over to the beach or Soil pile after colliding with the shoulder after sideslipping. The vehicle 300 to be tested is carried on the first vehicle running platform, after the traction mechanism of the traction system 200 is controlled by the first control console to accelerate the vehicle 300 to be tested to a preset test speed, two different dampers are also adopted: the spring-free damper and the spring damper reach the speed reduction curve required by the test to realize the working condition that the vehicle turns over into the beach under different postures. The vehicle 200 to be tested is placed on the first vehicle running platform, the vehicle tire baffle is fixed on the running platform mounting seat by bolts, and the vehicle posture is controlled by the vehicle tire baffle. The spring-free damper and the spring damper are fixed on the ground anchor through bolts, and the test requirements of different speed reduction curves can be met by using the damping change after the length of the damper is changed.
The concrete structure is as follows: the Soil test device comprises a first vehicle running platform, a vehicle mud and sand rolling area, a spring-free damper, a spring-provided damper, a vehicle tire baffle, a running platform mounting seat, a running platform deceleration baffle and a first control console. The first vehicle running platform is fixed through the traction system 200, the vehicle rolling sand area is fixed through the coaming, the spring-free damper and the spring damper are fixed on the ground anchor of the running track through the bolt, and the vehicle tire baffle is fixed on the running platform mounting seat of the first vehicle running platform through the bolt.
Referring to fig. 4, in one embodiment, the silt rollover test apparatus 11 further includes a vehicle tire baffle (c) and a driving platform mounting seat (c), the driving platform mounting seat (c) is fixed to a side edge area of the first vehicle driving platform (c) and is used for adjusting the posture of the vehicle 300 to be tested in the movement process, and the vehicle tire baffle (c) is fixed to the driving platform mounting seat (c).
In the embodiment of the invention, the vehicle tire baffle is fixed on the driving platform mounting seat of the first vehicle driving platform through bolts.
Referring to fig. 4, in one embodiment, the silt tumbling testing apparatus 11 further includes a driving platform deceleration baffle plate (c) fixed on both sides of the first vehicle driving platform (c) for decelerating the vehicle 300 to be tested.
In the embodiment of the invention, the driving platform deceleration baffle plate is fixed on the first vehicle driving platform through a bolt.
Therefore, when the rolling test device 10 is the silt rolling test device 11 and the test surface 101 is a silt surface, the corresponding vehicle dynamic rolling test method is as follows:
in one embodiment, step S20 is to accelerate the vehicle 300 to be tested to a predetermined test speed through the traction system 200 and to pass the vehicle 300 to be tested over the test surface 101, and includes the following steps:
s21, accelerating a first vehicle running platform (I) on which the vehicle 300 to be tested is placed on the sediment rolling test device 11 to a preset test speed through the traction system 200;
and S22, decelerating the vehicle 300 to be tested according to a preset deceleration curve through the first damper and the second damper of the sediment rolling test device 11 respectively, so that the vehicle 300 to be tested passes through a vehicle sediment rolling area II from the first vehicle running platform, and the lateral acceleration of the vehicle 300 to be tested reaches critical acceleration.
In one embodiment, after the first vehicle traveling platform (i) on which the vehicle 300 to be tested is placed on the sediment rolling test device 11 is accelerated to the predetermined test speed by the traction system 200, the method further comprises the following steps:
and S23, controlling the vehicle 300 to be tested to pass through a vehicle tire baffle plate (V) on the first vehicle running platform (I) so that the vehicle tire baffle plate (V) of the silt rolling test device 11 adjusts the rolling posture of the vehicle 300 to be tested in the moving process, wherein the rolling posture comprises rolling speed and rolling angle.
Before the start of the above-mentioned Soil test, the following preparation steps are also included:
vehicle preparation
a) The method comprises the steps of vehicle mass, compensating mass to be full-automatic mass after fuel and other liquid of a vehicle are removed, determining tire pressure of a tire to be a design value (first weighing), installing vehicle-mounted test equipment, placing H3-50 dummy in a main driving seat (different dummy can be placed in other seats according to research and development requirements), and enabling the mass to be a test mass (second weighing).
b) The vehicle is prepared, and the steering wheel of the vehicle is subjected to rotation stopping treatment, so that the linear type of the vehicle in the running process is prevented, and the consistency of the test is kept.
c) The seat is adjusted, the upper position and the lower position of the main driving seat are the lowest in the middle of the front position and the rear position, the backrest is at the normal driving position, and the height of the safety belt is the highest.
d) And (4) equipment installation, namely installing a vehicle-mounted brake, a battery, a data acquisition instrument, a high-speed camera and various sensors of vehicle body acceleration, angular speed, vehicle door pressure and the like according to test requirements.
e) And (3) setting a test traction speed according to the test speed calculated by simulation, enabling the test vehicle to reach a preset test speed through the traction system 200, and recording the actual rolling speed by using a speedometer.
(II) preparation of Soil test apparatus
a) The Soil test is a device without a vehicle tire baffle plate, and simulates the working condition that the vehicle enters a beach or a Soil pile after sideslipping. The two different dampers are adopted to achieve the speed reduction curve required by the test, namely the spring-free damper and the spring damper, so that the working condition that the vehicle turns over into the beach or the soil heap under different postures is realized.
b) The device with the tire baffle of the vehicle in the Soil test simulates the working condition that the vehicle rolls over to the beach or Soil pile after colliding with the shoulder after sideslipping. The vehicle 300 to be tested is carried on the first vehicle running platform, after the traction mechanism of the traction system 200 is controlled by the first control console to accelerate the vehicle 300 to be tested to a preset test speed, two different dampers are also adopted: the spring-free damper and the spring damper reach the speed reduction curve required by the test to realize the working condition that the vehicle turns over into the beach or the soil heap under different postures. The vehicle 200 to be tested is placed on the first vehicle running platform, the vehicle tire baffle is fixed on the running platform mounting seat by bolts, and the vehicle posture is controlled by the vehicle tire baffle. The spring-free damper and the spring damper are fixed on the ground anchor through bolts, and the test requirements of different speed reduction curves can be met by using the damping change after the length of the damper is changed.
(III) preparation of the test
a) The test vehicle and the tool are positioned, the test vehicle is longitudinally placed on the first vehicle running platform in the middle, the working condition of the baffle is adopted, the main driving side tire of the vehicle is tightly attached to the baffle of the vehicle tire, the working condition of the baffle is not adopted, and the distance between the main driving side tire of the vehicle and the edge of the running platform is 200 +/-10 (mm).
b) The sand in the sand pit needs to be processed to be smooth before the test, and the test consistency is kept.
c) The test vehicle is dispatched for confirmation, the vehicle-mounted data acquisition instrument is normally arranged, the high-speed camera is normally arranged, the speed tester is normally arranged, and the traction system 200 and the damper are confirmed to be normal.
d) The test matrix is based on the following table 1 and is adjusted according to the conditions to meet the requirements of the special conditions of the reappearance of real traffic accidents.
TABLE 1
| Test number | Test speed (km/h) | Damper type | With or without |
| 1 | 30 | With spring | Is free of |
| 2 | 30 | With spring | Is provided with |
| 3 | 30 | Without spring | Is free of |
| 4 | 30 | Without spring | Is provided with |
In conclusion, the silt rollover test device 11 and the test method thereof in the embodiment of the invention realize the verification of the rollover condition of the vehicle caused by the fact that the vehicle sideslips or is not impacted by a side obstacle on a road surface (such as a beach or a soil pile) with poor adhesion condition, the test device has simple design, and the expected test effect and consistency are good; meanwhile, the dynamic rolling condition test data are accumulated, so that the dynamic rolling condition test data are used for calibrating vehicle design, the development capacity of the safety performance of the whole vehicle is improved, the hidden danger of personnel after a vehicle rollover accident is reduced, and the independent capacity of new technology research and development is improved.
Referring to fig. 5, in one embodiment, the rolling test device 10 further includes a ramp rolling test device 12, the test surface 101 is an upper slope surface, and the ramp rolling test device 12 includes a first-stage guide table fixing seat, a first-stage guide table top, a first-stage guide table hydraulic lifting frame, a first-stage guide table telescopic support, a second-stage rolling table fixing seat, a second-stage rolling table hydraulic lifting frame, a second-stage rolling table telescopic support, a second-stage rolling table top telescopic support and a second console.
The first-level guide table fixing seat is connected with the first-level guide table top through a first-level guide table hydraulic lifting frame and a first-level guide table telescopic support, and the end face of the first-level guide table fixing seat is movably connected with the end face of the first-level guide table top. The second-stage rolling table fixing seat is movably connected with the first-stage guide table top, and the second-stage rolling table hydraulic lifting frame and the second-stage rolling table telescopic support are respectively fixed on the second-stage rolling table fixing seat. The secondary rolling table top telescopic table is connected with the secondary rolling table fixing seat and is fixed on a secondary rolling table telescopic support through an inclined strut structure. The second control console is respectively and electrically connected with the hydraulic lifting frame of the first-level guide platform and the hydraulic lifting frame of the second-level rolling platform.
The Ramp roll testing device 12 in the embodiment of the invention is also called a Ramp testing device. The Ramp test device simulates the working condition that a vehicle rolls over on the side surface after the single side of the vehicle rushes up a slope and is out of control. The relative angle between the first-stage guide table top II and the second-stage rolling table top expansion table II is adjusted through the second control table to provide different rolling speeds and rolling angles for the vehicle 300 to be tested, so that the vehicle 300 to be tested can reach the critical acceleration, the working condition test data of the vehicle 300 to be tested in the running and rolling processes can be obtained, and the requirements of the test on different postures of the vehicle can be met.
The concrete structure is as follows: the Ramp test device comprises a first-stage guide table fixing seat, a first-stage guide table top, a first-stage guide table hydraulic lifting frame, a first-stage guide table telescopic support, a second-stage rolling table fixing seat, a second-stage rolling table hydraulic lifting frame, a second-stage rolling table telescopic support, a second-stage rolling table top telescopic table and a second control table.
The first-level guide table fixing seat is connected with a first-level guide table top through a first-level guide table hydraulic lifting frame and a first-level guide table telescopic support. The angle of the table top is electrically controlled by the second control console to adjust the height of the hydraulic lifting frame of the primary guide table, so that the angle between the table top of the primary guide table and the test ground is realized, and after the angle meeting the test requirement is reached, the table top of the primary guide table is fixed on the fixed seat of the primary guide table through the movable hole position by the telescopic support of the primary guide table. The second-stage rolling table fixing seat is connected with the first-stage guide table top through a rotating hinge, and the second-stage rolling table hydraulic lifting frame is fixed with the second-stage rolling table telescopic support through a bolt. The second control console electrically controls and adjusts the height of the hydraulic lifting rack of the second-level rolling platform to realize the angle adjustment of the second-level rolling platform fixing seat and the first-level guide platform surface, and after the test required angle is reached, the second-level rolling platform is fixed through the telescopic support of the second-level rolling platform. The second-stage rolling table top telescopic table is connected with the second-stage rolling table fixing seat through a telescopic frame, and the length of the second-stage rolling table top telescopic table top is changed through stretching so as to meet the requirements of vehicles 200 to be tested with different wheel bases.
Therefore, when the rollover test device 10 is the ramp rollover test device 12 and the test surface 101 is an upper slope surface, the corresponding dynamic vehicle rollover test method specifically includes the following steps:
s40, setting an included angle between a first-stage guide table top and the horizontal ground of the ramp rolling test device 12, setting an included angle between the first-stage guide table top and a second-stage rolling table fixing seat and setting the length of a second-stage rolling table top telescopic table according to a preset ramp working condition table.
In one embodiment, the predetermined ramp conditions are shown in Table 2.
Step S20 is to accelerate the vehicle 300 under test to a predetermined test speed through the traction system 200 and to pass the vehicle 300 under test over the test surface 101, further comprising the steps of:
s24, accelerating the vehicle 300 to be tested to a preset test speed through the traction system 200, so that the vehicle 300 to be tested sequentially passes through the table top of the primary guide table, the table top of the second-stage rolling table fixing seat and the telescopic table top of the second-stage rolling table, and the lateral acceleration of the vehicle 300 to be tested reaches a critical acceleration.
Before the Ramp test is started, the method also comprises the following preparation steps:
vehicle preparation
The entire vehicle is prepared and tested by referring to Soil.
(II) preparation of Ramp test apparatus
The Ramp test device simulates the working condition that a vehicle rolls over on the side surface after the single side of the vehicle rushes up a slope and is out of control. The relative angle between the first-stage guide table surface and the second-stage rolling table surface is adjusted through the console to meet the requirements of the test on different postures of the vehicle. The first-level guide table fixing seat is connected with a first-level guide table top through a first-level guide table hydraulic lifting frame and a first-level guide table telescopic support. The angle of the table top is electrically controlled by the second control console to adjust the height of the hydraulic lifting frame of the primary guide table, so that the angle between the table top of the primary guide table and the test ground is realized, and after the angle meeting the test requirement is reached, the table top of the primary guide table is fixed on the fixed seat of the primary guide table through the movable hole position by the telescopic support of the primary guide table. The second-stage rolling table fixing seat is connected with the first-stage guide table top through a rotating hinge, and the second-stage rolling table hydraulic lifting frame is fixed with the second-stage rolling table telescopic support through a bolt. The second control console electrically controls and adjusts the height of the hydraulic lifting rack of the second-level rolling platform to realize the angle adjustment of the second-level rolling platform fixing seat and the first-level guide platform surface, and after the test required angle is reached, the second-level rolling platform is fixed through the telescopic support of the second-level rolling platform. The second-stage rolling table top telescopic table is connected with the second-stage rolling table fixing seat through a telescopic frame, and the length of the second-stage rolling table top telescopic table top is changed through stretching so as to meet the requirements of vehicles 200 to be tested with different wheel bases.
(III) preparation of the test
a) When the Ramp test device is fixed through the wheel track A of the vehicle, the distance between the center line of the device and the center of the track is required to be 1/2A +/-10 (mm).
b) The test vehicle is dispatched for confirmation, the vehicle-mounted data acquisition instrument is normally arranged, the high-speed camera is normally arranged, the speed tester is normally arranged, and the traction system 200 confirms that the vehicle-mounted data acquisition instrument is normal.
c) The test matrix is adjusted according to the conditions to meet the requirements of the special conditions reproduced by the real traffic accidents based on the following table 2.
TABLE 2
| Test number | Test speed (km/h) | Angle of guide platform | Relative angle of rolling table |
| 1 | 50 | 15° | 0° |
| 2 | 50 | 30° | 0° |
| 3 | 50 | 45° | 0° |
| 4 | 50 | 15° | 15° |
| 5 | 50 | 15° | 30° |
| 6 | 50 | 15° | 45° |
In conclusion, the ramp roll testing device 12 and the testing method thereof in the embodiment of the invention realize the verification of the vehicle rollover condition caused by the rapid change of the vehicle body inclination angle after the wheels are influenced by the ground obstacle (such as single side rushing up the slope) when the vehicle runs at a high speed, the testing device is simple in design, and the expected testing effect and consistency are good; meanwhile, the dynamic rolling condition test data are accumulated, so that the dynamic rolling condition test data are used for calibrating vehicle design, the development capacity of the safety performance of the whole vehicle is improved, the hidden danger of personnel after the rollover accident of the vehicle is reduced, and the independent capacity of new technology research and development is improved.
Referring to fig. 6, in one embodiment, the rolling test device 10 further includes a trench rolling test device 13, the test surface 101 is a lower slope surface, and the trench rolling test device 13 includes a second vehicle traveling platform (i), a first side-sliding platform (ii), a first side-sliding platform lifting frame (iii), a second rolling platform lifting frame (iv), a second rolling platform (v), a vehicle traveling traction track and a third control platform; wherein, the average horizontal height of the second vehicle running platform I, the average horizontal height of the first-level side sliding platform II and the average horizontal height of the second-level rolling platform II are sequentially decreased.
The second vehicle running platform is movably connected with the first-level side-sliding table top, the first-level side-sliding table top is supported and fixed through the first-level side-sliding table top lifting frame, the second-level rolling table top is movably connected with the first-level side-sliding table top and is supported and fixed through the second-level rolling table top lifting frame. The third control platform is respectively and electrically connected with the first-stage side-sliding table-board lifting frame and the second-stage rolling table-board lifting frame.
The trench rollover test apparatus 13 of the present embodiment is also referred to as a Ditch test apparatus. The Ditch test device simulates the working condition that a vehicle rolls over on the side surface after the single side of the vehicle rushes down the slope and is out of control. The angle between the first-stage side-sliding table top II and the second-stage rolling table top III is adjusted through the console to meet the requirements of the test on different postures of the vehicle. The vehicle running platform can utilize the existing independent heightening platform to increase the utilization rate of the test site.
The concrete structure is as follows: the Ditch test device comprises a second vehicle running platform, a first-level side-sliding table top lifting frame, a second-level rolling table top and a third control table.
The first-level side-sliding platform is connected with the second vehicle running platform through a hinge, and the angle between the first-level side-sliding platform and the second vehicle running platform is changed by using electric control and height adjustment of the first-level side-turning platform lifting frame. The second-stage rolling table top is connected with the first-stage side-sliding table top through a hinge, and the angle change between the second-stage rolling table top and the first-stage side-sliding table top is realized by utilizing the height adjustment of the electric control second-stage rolling table top lifting frame, so that different rolling speeds and rolling angles are provided for the vehicle 300 to be tested, the vehicle 300 to be tested reaches critical acceleration, working condition test data of the vehicle 300 to be tested in the running and rolling processes are obtained, and the requirements of tests on different postures of the vehicle are met.
Therefore, when the rollover test device 10 is the trench rollover test device 13 and the test surface 101 is a downward slope surface, the corresponding dynamic rollover test method for the vehicle is as follows, and the method further includes the following steps:
s50, according to the preset ditch working condition table, setting the included angle between the second vehicle running platform and the first-level side sliding platform of the silt rolling test device 11, and setting the included angle between the first-level side sliding platform and the second-level rolling platform.
In one embodiment, the predetermined trench conditions are shown in Table 2.
Step S20, accelerating the vehicle 300 to be tested to the predetermined test speed through the traction system 200 so that the vehicle 300 to be tested passes through the test surface 101, further comprising the following steps:
s25, accelerating the vehicle 300 to be tested on the vehicle running traction track (C) of the ditch rolling test device 13 to a preset test speed through the traction system 200, so that the vehicle 300 to be tested sequentially passes through a first-level side-sliding table top and a second-level rolling table top along the vehicle running traction track (C), and the lateral acceleration of the vehicle 300 to be tested reaches critical acceleration.
Before the beginning of the Ditch test, the method further comprises the following preparation steps:
vehicle preparation
The entire vehicle is prepared and tested by referring to Soil.
(II) Ditch test device preparation
The Ditch test device simulates the working condition that a vehicle rolls over on the side surface after the single side of the vehicle rushes down the slope and is out of control. The angle between the first-stage side-sliding table top II and the second-stage rolling table top III is adjusted through the console to meet the requirements of the test on different postures of the vehicle. The second vehicle running platform can utilize the existing independent heightening platform to increase the utilization rate of the test site. The first-level side-sliding platform is connected with the first vehicle running platform through a hinge, and the angle between the first-level side-sliding platform and the second vehicle running platform is changed by electrically controlling the third control platform and adjusting the height of the first-level side-turning platform lifting frame. The second-stage rolling table top is connected with the first-stage side-sliding table top through a hinge, and the third control table is used for electrically controlling the second-stage rolling table top lifting frame to adjust the height of the second-stage rolling table top, so that the angle between the second-stage rolling table top and the first-stage side-sliding table top is changed.
(III) preparation of the test
a) The test vehicle and the tool are positioned, the device is embedded into a test field, a runway in a test area is elevated, and the included angle between the vehicle running traction track and a side sliding table top of the device is 15 degrees (the vehicle is prevented from directly rushing down the test device).
b) The test vehicle is dispatched for confirmation, the vehicle-mounted data acquisition instrument is normally arranged, the high-speed camera is normally arranged, the speed tester is normally arranged, and the traction system 200 confirms that the vehicle-mounted data acquisition instrument is normal.
c) The test matrix is adjusted according to the conditions to meet the requirements of the special conditions reproduced by the real traffic accidents based on the following table 3.
TABLE 3
| Test number | Test speed (km/h) | Side-slip platform angle | Relative angle of rolling table |
| 1 | 30 | 15° | 35° |
| 2 | 30 | 15° | 40° |
| 3 | 30 | 15° | 45° |
| 4 | 30 | 15° | 50° |
| 5 | 30 | 15° | 55° |
| 6 | 30 | 30° | 35° |
| 7 | 30 | 30° | 40° |
| 8 | 30 | 30° | 45° |
| 9 | 30 | 30° | 50° |
| 10 | 30 | 30° | 55° |
In conclusion, the ditch rolling test device 13 and the test method thereof in the embodiment of the invention realize that the vehicle sideslips due to the gradient change of the road surface (such as single side rushing down the slope) on the road surface with poor road conditions, when the lateral acceleration of the vehicle body exceeds the limit value, the vertical counter force of the wheels at the inner side of the vehicle is zero, and the verification of the rollover working condition of the vehicle is generated, the test device is simple in design, and the expected test effect and the consistency are good; meanwhile, the dynamic rolling condition test data are accumulated, so that the dynamic rolling condition test data are used for calibrating vehicle design, the development capacity of the safety performance of the whole vehicle is improved, the hidden danger of personnel after the rollover accident of the vehicle is reduced, and the independent capacity of new technology research and development is improved.
Compared with the prior art, the vehicle dynamic rolling test equipment 100 in the embodiment of the invention can simulate various rolling working conditions in real road conditions, a test verification method of a vehicle in an airbag ECU (electronic control Unit) development process is newly added, and test data of relevant dynamic rolling working conditions can be accumulated through simulation of different working conditions, so that the test data can be used for calibration of vehicle design, the development capacity of the safety performance of the whole vehicle is improved, hidden dangers of personnel after a vehicle rolling accident are reduced, and the independent capacity of new technology research and development is improved.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (12)
1. The dynamic rolling test equipment for the vehicle is characterized by comprising a rolling test device, wherein the rolling test device comprises a test surface, the test surface is one or more of a sediment surface, an upper slope surface and a lower slope surface, and the test surface is used for providing different rolling speeds and rolling angles for the vehicle to be tested so as to enable the lateral acceleration of the vehicle to be tested to reach the critical acceleration; the critical acceleration is the lateral acceleration on which the vehicle to be detected rolls over according to a vehicle roll-over model;
after a traction system accelerates a vehicle to be tested to a preset test speed, the vehicle to be tested passes through the test surface, so that a data acquisition device acquires working condition test data of the vehicle to be tested in the running and rolling processes in real time; and the working condition test data is used for calibrating vehicle design.
2. The vehicle dynamic roll test apparatus of claim 1, wherein the roll test device comprises a silt roll test device, and the test surface is a silt surface; the silt rolling test device comprises a first vehicle running platform, a vehicle rolling silt area, a damping device and a first control console;
the first vehicle running platform is arranged opposite to the vehicle rolling sediment area, is used for bearing a vehicle to be tested and is fixedly connected with the traction system, and the first control console is electrically connected with the traction system;
the damping device comprises a first damper and a second damper, and the first damper and the second damper are respectively fixed on the horizontal ground and are respectively used for decelerating the vehicle to be tested; wherein the cushioning degree of the first damper is greater than the cushioning degree of the second damper.
3. The vehicle rollover test apparatus according to claim 2, wherein the first damper includes a sprung damper and the second damper includes an unsprung damper.
4. The vehicle dynamic roll test device of claim 2, wherein the silt roll test device further comprises a vehicle tire baffle and a traveling platform mounting seat, the traveling platform mounting seat is fixed on the side area of the first vehicle traveling platform and used for adjusting the posture of the vehicle to be tested in the moving process, and the vehicle tire baffle is fixed on the traveling platform mounting seat.
5. The vehicle dynamic roll testing apparatus of claim 2, wherein the silt roll testing apparatus further comprises a traveling platform deceleration baffle fixed to both sides of the first vehicle traveling platform, and configured to decelerate the vehicle to be tested.
6. The vehicle dynamic roll test apparatus according to any one of claims 1 to 5, wherein the roll test device further comprises a ramp roll test device, the test surface being an upper ramp surface; the ramp rolling test device comprises a primary guide table fixing seat, a primary guide table top, a primary guide table hydraulic lifting frame, a primary guide table telescopic support, a secondary rolling table fixing seat, a secondary rolling table hydraulic lifting frame, a secondary rolling table telescopic support, a secondary rolling table top telescopic table and a second control table;
the primary guide table fixing seat is connected with the primary guide table top through the primary guide table hydraulic lifting frame and the primary guide table telescopic support, and the end face of the primary guide table fixing seat is movably connected with the end face of the primary guide table top;
the secondary rolling platform fixing seat is movably connected with the table surface of the primary guide platform, and the secondary rolling platform hydraulic lifting frame and the secondary rolling platform telescopic support are respectively fixed on the secondary rolling platform fixing seat;
the secondary rolling table top telescopic table is connected with the secondary rolling table fixing seat and is fixed on the secondary rolling table telescopic support through an inclined strut structure;
and the second control console is electrically connected with the primary guide platform hydraulic lifting frame and the secondary rolling platform hydraulic lifting frame respectively.
7. The vehicle dynamic roll test apparatus according to any one of claims 1 to 5, wherein the roll test device further comprises a trench roll test device, the test surface being a down slope surface; the ditch rolling test device comprises a second vehicle running platform, a first-stage side sliding table top lifting frame, a second-stage rolling table top, a vehicle running traction track and a third control table; the average horizontal height of the second vehicle running platform, the average horizontal height of the primary side sliding table board and the average horizontal height of the secondary rolling table board are sequentially decreased;
the second vehicle running platform is movably connected with the first-stage side-sliding table top, the first-stage side-sliding table top is supported and fixed through the first-stage side-sliding table top lifting frame, and the second-stage rolling table top is movably connected with the first-stage side-sliding table top and supported and fixed through the second-stage rolling table top lifting frame;
and the third control platform is respectively electrically connected with the first-stage side-sliding table top lifting frame and the second-stage rolling table top lifting frame.
8. A vehicle dynamic rollover test method applied to the vehicle dynamic rollover test apparatus of any one of claims 1 to 7, the method comprising:
establishing a vehicle rollover model, and calculating the critical acceleration of the vehicle to be detected during rollover according to the vehicle rollover model; the critical acceleration is a lateral acceleration suffered by the rollover of the vehicle to be tested;
accelerating the vehicle to be tested to a preset test speed through a traction system, and enabling the vehicle to be tested to pass through the test surface; the test surface is used for providing different rolling speeds and rolling angles for the vehicle to be tested so that the lateral acceleration of the vehicle to be tested reaches the critical acceleration;
acquiring working condition test data of the vehicle to be tested in the driving and rolling processes in real time through a data acquisition device; and the working condition test data is used for calibrating vehicle design.
9. The vehicle dynamic roll testing method of claim 8, wherein the roll testing device comprises a silt roll testing device, and the testing surface is a silt surface; the accelerating the vehicle to be tested to a preset test speed through a traction system and enabling the vehicle to be tested to pass through the test surface comprises the following steps:
accelerating a first vehicle running platform, on which a vehicle to be tested is placed, on the silt rolling test device to a preset test speed through a traction system;
pass through respectively silt rolls testing arrangement's first attenuator and second attenuator is right the vehicle that awaits measuring decelerates according to predetermined deceleration curve, so that the vehicle that awaits measuring follows first vehicle platform that traveles passes through the vehicle rolls silt district, and makes the lateral acceleration of the vehicle that awaits measuring reaches critical acceleration.
10. The vehicle dynamic roll testing method of claim 9, wherein after the first vehicle traveling platform on which the vehicle to be tested is placed on the sediment roll testing device is accelerated to a predetermined test speed by the traction system, the method further comprises:
control the vehicle that awaits measuring passes through vehicle tire baffle on the first vehicle platform of traveling to make silt roll testing arrangement's vehicle tire baffle adjustment the vehicle that awaits measuring is at the rolling gesture of motion in-process, the gesture of rolling includes roll speed and roll angle.
11. The vehicle dynamic roll test method according to claim 8, wherein the roll test device further comprises a ramp roll test device, the test surface being an upper ramp surface; the method further comprises the following steps:
setting an included angle between a primary guide table top and a horizontal ground of the ramp rolling test device, an included angle between the primary guide table top and a secondary rolling table fixing seat and the length of a secondary rolling table top telescopic table according to a preset ramp working condition table;
the accelerating the vehicle to be tested to a predetermined test speed by the traction system and passing the vehicle to be tested over the test surface further comprises:
will through traction system the vehicle that awaits measuring accelerates to predetermined test speed, so that the vehicle that awaits measuring passes through in proper order the one-level direction platform mesa the mesa of second grade platform fixing base that rolls with the flexible platform of second grade platform that rolls, and make the lateral acceleration of the vehicle that awaits measuring reaches critical acceleration.
12. The vehicle dynamic roll testing method of claim 8, wherein the roll testing device further comprises a trench roll testing device, the testing surface being a downhill slope; the method further comprises the following steps:
setting an included angle between a second vehicle running platform and a first-stage side sliding platform surface of the silt rolling test device and an included angle between the first-stage side sliding platform surface and a second-stage rolling platform surface according to a preset ditch working condition table;
the accelerating the vehicle to be tested to a predetermined test speed by the traction system and passing the vehicle to be tested over the test surface further comprises:
will set up through traction system ditch roll testing arrangement's vehicle travel and pull the vehicle that awaits measuring on the track and accelerate to predetermined test speed, so that the vehicle that awaits measuring along the vehicle travel and pull the track and pass through in proper order one-level sideslip mesa with the mesa is rolled to the second grade, and makes the lateral acceleration of the vehicle that awaits measuring reaches critical acceleration.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114132283A (en) * | 2021-11-12 | 2022-03-04 | 合肥正浩机械科技有限公司 | Automatic righting system for vehicle rollover |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201277913Y (en) * | 2008-09-23 | 2009-07-22 | 中国汽车工程研究院有限公司 | Side tuning experiment platform with slope |
| CN101706373A (en) * | 2009-11-23 | 2010-05-12 | 吉林大学 | Method and system of dynamic rollover test of engineering vehicle |
| CN103247185A (en) * | 2012-02-14 | 2013-08-14 | 厦门金龙联合汽车工业有限公司 | Anti-rollover reminding system and method for vehicle entering turn |
| CN203705169U (en) * | 2014-02-25 | 2014-07-09 | 中国汽车技术研究中心 | Tumbling stand for automobile spiral tumbling test |
| CN203798576U (en) * | 2014-02-25 | 2014-08-27 | 中国汽车技术研究中心 | Whole-vehicle tumble test platform |
| CN104266845A (en) * | 2014-10-15 | 2015-01-07 | 中国汽车技术研究中心 | Automobile slope rollover testing device and method |
| CN104697802A (en) * | 2015-03-26 | 2015-06-10 | 奇瑞汽车股份有限公司 | Vehicle trip-over test bench and testing method |
| CN107091749A (en) * | 2017-05-10 | 2017-08-25 | 中国汽车技术研究中心 | Test platform, the device and method of moment demarcation are acted on for vehicular sideview curtain airbag |
| CN107153007A (en) * | 2017-06-20 | 2017-09-12 | 江苏科技大学 | A kind of sitting type hay mover tumbling test platform and test method |
| CN108099919A (en) * | 2017-11-09 | 2018-06-01 | 珠海格力电器股份有限公司 | Preventing vehicle rollover method for early warning, device, storage medium and vehicle |
| CN108765942A (en) * | 2018-05-29 | 2018-11-06 | 武汉理工大学 | A kind of intelligent network connection automobile cornering danger early warning system and method |
| CN109489990A (en) * | 2018-11-08 | 2019-03-19 | 东南大学 | Truck side turns over imitative experimental appliance |
| CN110626353A (en) * | 2019-09-09 | 2019-12-31 | 武汉理工大学 | Vehicle dangerous state early warning method based on roll risk index |
| CN111645698A (en) * | 2020-05-23 | 2020-09-11 | 东南大学 | Self-adaptive estimation method for rollover threshold value of heavy-duty vehicle |
-
2020
- 2020-11-10 CN CN202011250377.4A patent/CN112345271A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201277913Y (en) * | 2008-09-23 | 2009-07-22 | 中国汽车工程研究院有限公司 | Side tuning experiment platform with slope |
| CN101706373A (en) * | 2009-11-23 | 2010-05-12 | 吉林大学 | Method and system of dynamic rollover test of engineering vehicle |
| CN103247185A (en) * | 2012-02-14 | 2013-08-14 | 厦门金龙联合汽车工业有限公司 | Anti-rollover reminding system and method for vehicle entering turn |
| CN203705169U (en) * | 2014-02-25 | 2014-07-09 | 中国汽车技术研究中心 | Tumbling stand for automobile spiral tumbling test |
| CN203798576U (en) * | 2014-02-25 | 2014-08-27 | 中国汽车技术研究中心 | Whole-vehicle tumble test platform |
| CN104266845A (en) * | 2014-10-15 | 2015-01-07 | 中国汽车技术研究中心 | Automobile slope rollover testing device and method |
| CN104697802A (en) * | 2015-03-26 | 2015-06-10 | 奇瑞汽车股份有限公司 | Vehicle trip-over test bench and testing method |
| CN107091749A (en) * | 2017-05-10 | 2017-08-25 | 中国汽车技术研究中心 | Test platform, the device and method of moment demarcation are acted on for vehicular sideview curtain airbag |
| CN107153007A (en) * | 2017-06-20 | 2017-09-12 | 江苏科技大学 | A kind of sitting type hay mover tumbling test platform and test method |
| CN108099919A (en) * | 2017-11-09 | 2018-06-01 | 珠海格力电器股份有限公司 | Preventing vehicle rollover method for early warning, device, storage medium and vehicle |
| CN108765942A (en) * | 2018-05-29 | 2018-11-06 | 武汉理工大学 | A kind of intelligent network connection automobile cornering danger early warning system and method |
| CN109489990A (en) * | 2018-11-08 | 2019-03-19 | 东南大学 | Truck side turns over imitative experimental appliance |
| CN110626353A (en) * | 2019-09-09 | 2019-12-31 | 武汉理工大学 | Vehicle dangerous state early warning method based on roll risk index |
| CN111645698A (en) * | 2020-05-23 | 2020-09-11 | 东南大学 | Self-adaptive estimation method for rollover threshold value of heavy-duty vehicle |
Non-Patent Citations (4)
| Title |
|---|
| RYUUJI OOTANI 等: "Effective Numerical Simulation Tool for Real-World Rollover Accidents by Combining PC-Crash and FEA", 《SAE TECHNICAL PAPER SERIES 2007-01-1773》 * |
| RYUUJI OOTANI 等: "Effective Numerical Simulation Tool for Real-World Rollover Accidents by Combining PC-Crash and FEA", 《SAE TECHNICAL PAPER SERIES 2007-01-1773》, 30 July 2018 (2018-07-30), pages 1 - 9 * |
| 曹立波 等: "汽车翻滚安全性研究及试验概览", 《汽车工程学报》 * |
| 曹立波 等: "汽车翻滚安全性研究及试验概览", 《汽车工程学报》, vol. 2, no. 4, 20 July 2012 (2012-07-20), pages 235 - 248 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114132283A (en) * | 2021-11-12 | 2022-03-04 | 合肥正浩机械科技有限公司 | Automatic righting system for vehicle rollover |
| CN114132283B (en) * | 2021-11-12 | 2022-11-01 | 合肥正浩机械科技有限公司 | Automatic righting system for vehicle rollover |
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