CN114545904A - Vehicle door dynamic simulation test system and control method thereof - Google Patents
Vehicle door dynamic simulation test system and control method thereof Download PDFInfo
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- CN114545904A CN114545904A CN202210163616.5A CN202210163616A CN114545904A CN 114545904 A CN114545904 A CN 114545904A CN 202210163616 A CN202210163616 A CN 202210163616A CN 114545904 A CN114545904 A CN 114545904A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0243—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults model based detection method, e.g. first-principles knowledge model
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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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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention relates to the technical field of finished automobile detection, in particular to a dynamic simulation test system of a vehicle door and a control method thereof, wherein the dynamic simulation test system of the vehicle door comprises a PLC (programmable logic controller), a moving rack and a driving mechanism arranged on the moving rack, wherein the output end of the driving mechanism is connected with a door opening joint through a mechanical arm, and the dynamic simulation test system of the vehicle door also comprises a human-computer interaction mechanism for setting parameters in the test process; the driving mechanism comprises a servo motor and an RV reducer; the door opening joint comprises a joint body, the joint body is fixedly connected with the tail end of the mechanical arm, and a tension and pressure sensor, a laser range finder, a displacement sensor and an index plate are further distributed on the joint body; and a man-machine interaction mechanism. The door opening joint can effectively simulate the real action of repeatedly opening and closing the door by a hand, can also adjust the force and the speed of actually closing or opening the door, can greatly reduce the influence of the testing mechanism on the testing result, and effectively improve the accuracy of various performance tests of the door.
Description
Technical Field
The invention relates to the technical field of automobile detection, in particular to a dynamic simulation test system for an automobile door and a control method thereof.
Background
With the rapid development of automobile manufacturing technology, more and more automobiles go into thousands of households, the quality and the service life of the automobiles become important concerns of the majority of users, and the quality of the whole automobile is determined by the quality and the assembly quality of a plurality of parts formed by the whole automobile. Therefore, the mass and service life of the door, which is one of the important parts of the automobile, become an irrecoverable concern. Before a new vehicle model is put into use, various performance parameters of the new vehicle model must be verified in detail and comprehensively.
At present, most automobile manufacturers adopt a passive test and verification for automobile doors, namely, sensors related to automobile door performance test are only arranged on or near each automobile door of an automobile body, a special mechanism is used for driving the automobile doors to be opened and closed continuously and repeatedly, data are collected, and then various performances of the automobile doors are analyzed through the collected data. However, this method has a drawback that there is no real state of manually opening and closing the door, and there is no analysis and consideration of the influence of other factors such as the opening and closing force of the door on the test, which inevitably results in the accuracy of the test verification being affected, so that the result of the performance test of the door is not accurate enough.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a dynamic simulation test system for a vehicle door and a control method thereof, which can effectively solve the problem that the performance test result of the vehicle door is not accurate enough because a single passive test means is adopted in the performance test process of the vehicle door in the prior art, the real action of repeated door closing of a human hand cannot be well simulated, and the door closing size and speed of an adjusting mechanism in a test device are inconvenient to adjust.
In order to achieve the above purpose, the invention provides a vehicle door dynamic simulation test system, which comprises a PLC (programmable logic controller), a mobile rack and a driving mechanism arranged on the mobile rack, wherein the output end of the driving mechanism is connected with a door opening joint through a mechanical arm, the door opening joint acts on a vehicle door to be tested, the action of the door opening joint comprises the opening and closing of the vehicle door, and the vehicle door dynamic simulation test system also comprises a human-computer interaction mechanism used for setting parameters in the test process; the driving mechanism comprises a servo motor and an RV reducer, the servo motor is fixedly arranged on the outer wall of the moving rack, the RV reducer is fixedly arranged on an output shaft of the servo motor, the mechanical arm is fixedly arranged on the output end of the RV reducer, and the RV reducer is further provided with a photoelectric proximity switch and a torque sensor; the door opening joint comprises a joint body, wherein the joint body is fixedly connected with the tail end of the mechanical arm, a tension and pressure sensor, a laser range finder, a displacement sensor and an index plate are further distributed on the joint body and used for measuring the opening or closing force of the car door in the opening and closing process and the distance parameter between the car door and the joint body in the action process, the arranged index plate can adjust the angle between the joint body and the car door, and the joint body is connected with a car door handle through a connecting belt at the end position of the joint body; human-computer interaction mechanism, including the electrical apparatus control box of fixed mounting on the mobile rack to and fix the touch-sensitive screen on its outer wall, be used for the parameter setting to among the test procedure, wherein the parameter includes: the door opening and closing speed, the zero point offset and the door opening and closing angle parameters are set, and meanwhile, the set touch screen can display the parameters.
Further, the photoelectric proximity switch is configured to detect whether the set servo motor is in an origin position, and is connected to an input terminal pin of the PLC controller.
Further, torque sensor and draw pressure sensor to be configured as and be used for collecting the pulling force when opening the door and the thrust data when closing the door to the door that opens and shuts the in-process and open and shut to through the rotational speed of PLC controller control servo motor and RV speed reducer, and then realize controlling the dynamics that acts on the door.
Further, the laser distance measuring instrument is configured to monitor a distance between the joint body and the vehicle door at any time, and the follow-up rotation speed of the servo motor is controlled by the PLC controller.
Further, the displacement sensor is disposed to detect whether the joint body is in contact with the door, and controls the RV reducer via the PLC controller to act on the servo motor to reduce or stop the speed.
Further, the device also comprises a light correlation sensor fixedly arranged on the movable rack, and the light correlation sensor is used for detecting the opening and closing state of the vehicle door and feeding back the opening and closing state to the PLC controller.
The invention also provides a control method of the vehicle door dynamic simulation test system, which comprises the following steps:
s1: starting the system, clicking a zero return button in the touch screen, and selecting an active zero return mode; and simultaneously clicking an 'axis enabling' button in the touch screen to judge the state of an output shaft of the servo motor.
S2: and setting parameters, namely setting the values of the door opening and closing speed, zero point offset and door opening and closing angle in the touch screen.
S3: the door opening and closing action is executed, and a manual mode and an automatic mode are set; in an automatic mode in the touch screen is clicked, a delay program waits for 5s, a servo driver automatically starts an 'absolute positioning' mode, a servo motor drives a mechanical arm to rotate through an RV reducer, so that a connecting band on a door opening and closing joint can pull a vehicle door and open the vehicle door, the servo motor stops rotating after the vehicle door is opened to the maximum position, and the 'manual' mode is selected.
S4: after the door was opened, time delay procedure waits for 15s, servo driver automatic start "absolute positioning" mode, servo motor will be with great initial velocity antiport, drive the arm and give an instantaneous power of door, the realization is to closing of door, at the in-process of closing the door, laser range finder monitors the distance between joint body and the door constantly, and follow the rotation rate through PLC controller control servo motor, and simultaneously, through the displacement sensor who sets up, when it is compressed, can be immediately with signal transmission for PLC controller, decide servo motor deceleration or stop after the PLC controller is handled.
S5: the thrust, torque sensor and pull pressure sensor at the moment the door is closed can carry out the collection of data to show through the touch-sensitive screen.
S6: and repeating S1-S5, resetting parameters and realizing the acquisition of multiple groups of data.
Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:
the door opening joint can effectively simulate the real action of repeatedly opening and closing the door by a human hand, can also adjust the force and the speed actually used for closing or opening the door, and can greatly reduce the influence of a testing mechanism on a testing result and effectively improve the accuracy of various performance tests of the door compared with the traditional passive testing mode.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic diagram of the simulation architecture of the present invention as a whole in use;
FIG. 2 is a schematic view of the overall structure of the mobile platform of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of the door knuckle of the present invention;
FIG. 5 is a schematic view of the electrical wiring diagram main loop connection of the present invention;
FIG. 6 is a schematic wiring diagram of a PLC system of the present invention;
FIG. 7 is a schematic wiring diagram of the torque sensor and pull pressure sensor of the present invention;
FIG. 8 is a schematic diagram of the servo motor wiring of the present invention;
fig. 9 is a flow chart of PLC system control according to the present invention.
The reference numerals in the drawings denote: 1. a mobile stand; 2. a servo motor; 3. an RV reducer; 4. a photoelectric proximity switch; 5. a torque sensor; 6. a touch screen; 7. an electrical appliance control box; 8. a pull pressure sensor; 9. a laser range finder; 10. a displacement sensor; 11. a laser correlation sensor; 12. an index plate; 13. and a connecting belt.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all 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.
The present invention will be further described with reference to the following examples.
Example 1: the dynamic simulation test system for the vehicle door comprises a PLC controller, wherein the PLC controller is arranged and used for receiving and processing input signals of a plurality of sensors arranged in the test system. Specifically, the PLC comprises a photoelectric proximity switch 4, a torque sensor 5, a control action of a touch screen 6, a tension and pressure sensor 8, a laser range finder 9, a displacement sensor 10 and a laser correlation sensor 11, and finally carries out timely processing through received signals and finally carries out timely control on the arranged servo motor 2 and the RV reducer 3; the device also comprises a laser correlation sensor 11 fixedly arranged on the movable rack 1, and the laser correlation sensor is used for detecting the opening and closing state of the vehicle door and feeding back the opening and closing state to the PLC.
The dynamic simulation test system for the vehicle door further comprises a moving rack 1, specifically, the set simulation test devices are fixedly mounted on the moving rack 1, and in the actual test simulation process, the moving rack 1 needs to be pushed to the position of one side of the vehicle door of the vehicle to be detected. It should be noted that, before the test, the connecting band 13 disposed in the door opening joint needs to be connected and fixed to the handle of the vehicle door, and it should be noted that the provided opening and closing joint does not directly contact with the vehicle door during the door closing process, and further, compared with the conventional passive test method, the provided door opening joint only contacts with the door at the door closing instant, so as to better simulate a state of the door closed by the hand, thereby ensuring that a more accurate test data can be obtained.
The dynamic simulation test system for the vehicle door further comprises a driving mechanism arranged on the moving rack 1, the driving mechanism comprises a servo motor 2 and an RV speed reducer 3, the servo motor 2 is fixedly arranged on the outer wall of the moving rack 1, the RV speed reducer 3 is fixedly arranged on an output shaft of the servo motor 2, a mechanical arm is fixedly arranged on an output end of the RV speed reducer 3, and a photoelectric proximity switch 4 and a torque sensor 5 are further arranged on the RV speed reducer 3. This actuating mechanism of setting for the power source that the door and open the door is closed in the provision, and is concrete, servo motor 2 of setting is under servo driver's drive, and the output that the servo motor 2 that combines to set up passes through the relation of the joint that opens the door that the arm is connected, servo motor 2 can drive and open the door the joint and rotate, and realize opening and closing the door, and this photoelectricity proximity switch 4 of setting, can confirm the position of 2 output shafts of this servo motor, and with the data transmission that it was gathered to the PLC controller in. In the actual use process, judge that it need not reset it, photoelectric proximity switch 4 is configured as and is used for detecting whether servo motor 2 that sets up is in the initial position to be connected with the input pin of PLC controller.
The output end of the driving mechanism is connected with a door opening joint through a mechanical arm, the door opening joint acts on the vehicle door to be tested, and the action of the door opening joint comprises opening and closing of the vehicle door. The joint that opens the door includes the joint body, the terminal fixed connection of joint body and arm, the joint body still distributes and draws pressure sensor 8, laser range finder 9, displacement sensor 10, graduated disk 12, be used for opening and the opening of closed in-process or closed dynamics and action process to the door and the distance parameter between the door measure, and the graduated disk 12 that sets up can adjust the angle between joint body and the door, be connected between connecting band 13 and the door handle through its tip position on the joint body, the joint that opens the door of setting, be used for being connected with the door that waits to detect.
Specifically, the end of the joint body is provided with a connecting belt 13, and the connecting belt 13 passes through a handle on the vehicle door and keeps a certain distance with the handle. In the process of opening the door, the connecting belt 13 is always positioned between the joint body and the door handle, keeps a certain distance, rotates along with the door, and does not delay the rotation of the door. In this process, the laser range finder 9 of setting on the joint body can incessant measure the distance between joint body and the door to the distance information that will gather is during signal transmission to PLC controller for, and then adjusts servo motor 2's rotational speed constantly, makes the joint that opens the door can keep a stable following speed. The laser distance meter 9 is arranged to constantly monitor the distance between the joint body and the door, and controls the follow-up rotation speed of the servo motor 2 by a PLC controller.
In particular, during the opening and closing of the door, the displacement sensor 10 is disposed to detect whether or not the joint body is in contact with the door, and controls the RV reducer 3 by the PLC controller. Acting on the servomotor 2, in the form of a reduction or stop. In the actual use process, when the PLC controller handles untimely or the laser range finder 9 measures the distance wrongly, can lead to switch door joint and door to be about to contact, then displacement sensor 10 must at first can be compressed, and this compression signal can be transmitted to the PLC controller, and then carries out the instruction adjustment that slows down or stop to servo motor 2.
The dynamic simulation test system for the vehicle door further comprises a man-machine interaction mechanism used for setting parameters in the test process. The man-machine interaction mechanism comprises an electric appliance control box 7 fixedly arranged on the moving rack 1 and a touch screen 6 fixed on the outer wall of the moving rack, and is used for setting parameters in the test process, wherein the parameters comprise: and setting parameters of door opening and closing speed, zero point offset and door opening and closing angle. The touch screen 6 that sets up simultaneously can show the parameter, and in this man-machine interaction mechanism who sets up, through the mode that the touch screen 6 that sets up on the moving rack 1 on the one hand can be through clicking the button, carries out the input of signal of telecommunication to the PLC controller, mainly contains the adjustment to servo motor 2 initial position, makes it before testing at every turn, all can be in zero point position. On the other hand, before each test, various parameters in the test process, including parameters such as the door opening and closing speed, the zero point offset and the door opening and closing angle, can be manually input through the touch screen 6.
The torque sensor 5 and the pull pressure sensor 8 are configured to be used for collecting pulling force when opening the door and thrust data when closing the door in the opening and closing process of the opening and closing door, and control the rotating speed of the servo motor 2 and the RV reducer 3 through the PLC controller, thereby realizing control of the force acting on the door. It is worth to be noted that the established force is vertically controlled through the touch screen 6 in the human-computer interaction mechanism to specifically close the car door.
At the input end of the PLC controller, as shown in fig. 6 to 7, the photoelectric proximity switch 4 is correspondingly installed on an input pin I0.0 of the PLC controller, and is configured to detect the position of the output end of the servo motor 2, and determine whether the output end of the servo motor 2 is in a "return to zero" state by detecting the position of the output end; the laser correlation sensor 11 is correspondingly arranged on an input pin I0.1 of the PLC and used for detecting the opening and closing state of the vehicle door; the torque sensor 5 is correspondingly arranged on an input pin I0.2 of the PLC and used for detecting the torque of the output end of the servo motor 2; the pull pressure sensor 8 is correspondingly arranged on an input pin I0.3 of the PLC controller and used for detecting the thrust applied to the car door by the door opening joint; the laser range finder 9 is correspondingly arranged on an input pin I0.4 of the PLC and is used for monitoring the distance between the joint body and the vehicle door in real time so as to adjust the following speed of the servo motor 2; and the displacement sensor 10 is correspondingly arranged on an input pin I0.5 of the PLC and used for judging whether the vehicle door is contacted with the joint body.
In addition, the PLC controller also comprises spare pins I0.6-I1.5.
Example 2: the invention also discloses a control method of the vehicle door dynamic simulation test system, which comprises the following steps:
s1: when the system is started, the programmable controller (CPU1215), the servo driver (V90-PN) and other devices enter a working mode, then a zero return button in the touch screen 6 is clicked, and an active zero return mode is selected. And simultaneously clicking an 'axis enabling' button in the touch screen 6 to judge the state of an output shaft of the servo motor 2, wherein the system needs to return to zero before being used every time, clicking the 'return to zero' button in the touch screen to select an 'active return to zero' mode, clicking the 'axis enabling' button in the touch screen to judge whether the shaft is enabled, if the shaft is enabled, executing a servo return to zero action, namely the servo motor rotates according to a set direction and speed to judge whether the servo motor reaches a return to zero position, continuing to rotate to a zero offset position, stopping the motor, returning the mechanical arm to the position of the vehicle door in a closed state, and finishing the preparation work of the rack electric control system.
S2: parameter setting sets up the parameter value of speed, zero offset, the angle of opening and shutting in touch-sensitive screen 6, can adjust a plurality of data of the in-process of opening and shutting through this touch-sensitive screen 6 that sets up, and makes in the operation process of reality, can adopt different dynamics and the angle of closing the door to same door to test. Particularly, by installing an index plate 12 on the mechanical arm, the force application direction during door closing can be adjusted by changing the relative angle between the door opening joint and the door, so that more test data can be obtained.
S3: the door opening and closing action is executed, and a manual mode and an automatic mode are set; in the automatic mode of clicking in the touch-sensitive screen 6, the time delay procedure waits for 5s, and servo driver automatic start "absolute positioning" mode, servo motor 2 drives the arm through RV speed reducer 3 and begins to rotate, and then makes the connecting band 13 on the switch door joint can stimulate the door and realize opening of door, and after the door opened to the maximum position, servo motor 2 stopped rotating. The difference between the selection of the "manual" mode is that the buttons of "open door" and "close door" on the touch screen 6 must be clicked to open the door and close the door, respectively, and the servo motor 2 drives the mechanical arm to rotate to the door closing or opening position and then to stop actively.
S4: after the door is opened, the delay program waits for 15s, the servo driver automatically starts an 'absolute positioning' mode, the servo motor 2 can reversely rotate at a high initial speed to drive the mechanical arm to supply an instantaneous force to the door, and the door is closed. In the door closing process, the laser range finder 9 monitors the distance between the joint body and the vehicle door at all times, and controls the servo motor 2 to follow the rotating speed through the PLC controller. Meanwhile, through the displacement sensor 10, when the compression is performed, a signal is immediately transmitted to the PLC controller, and the servo motor 2 is determined to be decelerated or stopped after the signal is processed by the PLC controller.
S5: the thrust, torque sensor 5 and pull pressure sensor 8 at the moment the door is closed collect data and display it via the touch screen 6.
S6: and repeating S1-S5, resetting parameters and realizing the acquisition of multiple groups of data.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not depart from the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The dynamic simulation test system for the vehicle door is characterized by comprising a PLC (programmable logic controller), a mobile rack (1) and a driving mechanism arranged on the mobile rack (1), wherein the output end of the driving mechanism is connected with a door opening joint through a mechanical arm, the door opening joint acts on the vehicle door to be tested, the action of the door opening joint comprises the opening and closing of the vehicle door, and the dynamic simulation test system for the vehicle door also comprises a human-computer interaction mechanism used for setting parameters in the test process;
the driving mechanism comprises a servo motor (2) and an RV reducer (3), the servo motor (2) is fixedly installed on the outer wall of the moving rack (1), the RV reducer (3) is fixedly installed on an output shaft of the servo motor (2), the mechanical arm is fixedly installed on the output end of the RV reducer (3), and a photoelectric proximity switch (4) and a torque sensor (5) are further arranged on the RV reducer (3);
the door opening joint comprises a joint body, the joint body is fixedly connected with the tail end of a mechanical arm, a tension and pressure sensor (8), a laser range finder (9), a displacement sensor (10) and an index plate (12) are further distributed on the joint body and used for measuring the opening or closing force of a vehicle door in the opening and closing process and the distance parameter between the vehicle door and the vehicle door in the action process, the arranged index plate (12) can adjust the angle between the joint body and the vehicle door, and the joint body is connected with a vehicle door handle through a connecting belt (13) at the end position of the joint body;
human-computer interaction mechanism, including electrical apparatus control box (7) of fixed mounting on mobile rack (1) to and fix touch-sensitive screen (6) on its outer wall, be used for the parameter setting to among the test procedure, wherein the parameter includes: the door opening and closing speed, the zero point offset and the door opening and closing angle parameters are set, and meanwhile, the set touch screen (6) can display the parameters.
2. The vehicle door dynamic simulation test system according to claim 1, wherein the electro-optical proximity switch (4) is configured to detect whether the set servo motor (2) is in an origin position and is connected to an input terminal pin of the PLC controller.
3. The vehicle door dynamic simulation test system according to claim 1, wherein the torque sensor (5) and the tension and pressure sensor (8) are configured to collect data of tension when the open vehicle door is opened and thrust when the closed vehicle door is closed during opening and closing, and the rotation speeds of the servo motor (2) and the RV reducer (3) are controlled through the PLC controller, so as to control the force acting on the vehicle door.
4. The vehicle door dynamic simulation test system according to claim 1, wherein the laser range finder (9) is configured to monitor a distance between the joint body and the vehicle door at every moment and control a follow-up rotation speed of the servo motor (2) through a PLC controller.
5. The vehicle door dynamic simulation test system according to claim 1, wherein the displacement sensor (10) is disposed to detect whether the joint body is in contact with the vehicle door, and controls the RV reducer (3) by the PLC controller to act on the servo motor (2) to decelerate or stop.
6. The vehicle door dynamic simulation test system according to claim 1, further comprising a laser correlation sensor (11) fixedly mounted on the mobile rack (1) for detecting the opening and closing state of the vehicle door and feeding back the opening and closing state to the PLC controller.
7. The control method of the vehicle door dynamic simulation test system according to claims 1 to 6, characterized by comprising:
s1: starting the system, clicking a 'return-to-zero' button in the touch screen (6) and selecting an 'active return-to-zero' mode; simultaneously clicking an 'axis enabling' button in the touch screen (6) to judge the state of an output shaft of the servo motor (2);
s2: setting parameters, namely setting the values of the door opening and closing speed, zero point offset and door opening and closing angle in the touch screen (6);
s3: the door opening and closing action is executed, and a manual mode and an automatic mode are set; in an automatic mode in the touch screen (6) is clicked, a delay program waits for 5s, a servo driver automatically starts an absolute positioning mode, a servo motor (2) drives a mechanical arm to rotate through an RV reducer (3), so that a connecting belt (13) on a door opening and closing joint can pull a vehicle door and open the vehicle door, the servo motor (2) stops rotating after the vehicle door is opened to the maximum position, and the manual mode is selected and has the difference that the buttons of opening the vehicle door and closing the vehicle door on the touch screen (6) are respectively clicked to open the vehicle door and close the vehicle door, and the servo motor (2) drives the mechanical arm to rotate to a door closing position or a door opening position and then stops actively;
s4: after the door is opened, a delay program waits for 15s, a servo driver automatically starts an 'absolute positioning' mode, a servo motor (2) can reversely rotate at a large initial speed to drive a mechanical arm to supply an instantaneous force to the door, so that the door is closed, in the door closing process, a laser range finder (9) constantly monitors the distance between a joint body and the door, the servo motor (2) is controlled to follow the rotation speed through a PLC (programmable logic controller), meanwhile, a signal can be immediately transmitted to the PLC through a displacement sensor (10) when the displacement sensor is compressed, and the servo motor (2) is determined to decelerate or stop after being processed by the PLC;
s5: the thrust at the moment when the car door is closed, the torque sensor (5) and the pull pressure sensor (8) can collect data and display the data through the touch screen (6);
s6: and repeating S1-S5, resetting parameters and realizing the acquisition of multiple groups of data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210163616.5A CN114545904A (en) | 2022-02-22 | 2022-02-22 | Vehicle door dynamic simulation test system and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210163616.5A CN114545904A (en) | 2022-02-22 | 2022-02-22 | Vehicle door dynamic simulation test system and control method thereof |
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| CN114545904A true CN114545904A (en) | 2022-05-27 |
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| CN202210163616.5A Pending CN114545904A (en) | 2022-02-22 | 2022-02-22 | Vehicle door dynamic simulation test system and control method thereof |
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