Active pre-tightening seat belt bench calibration system, working method thereof and vehicle

Abstract

The application belongs to the technical field of automobiles, and provides an active pre-tightening safety belt bench calibration system, a working method thereof and a vehicle, which comprises a bench, a safety belt arranged on the bench, an integrated touch screen display, a CAN box and a retractor arranged on the bench and connected in sequence, the retractor comprises a controller and a motor, the safety belt is connected with the motor, the integrated touch screen display is used for responding to a working condition signal, calling and sending a message corresponding to the working condition signal, the CAN box is used for converting the message into an analog signal, and the controller is used for adjusting a trigger current, a voltage and a time curve of the motor after receiving the analog signal, driving the motor to rotate, realizing the tightening and / or shaking of the safety belt, and calibrating a safety belt tightening force value and / or a safety belt shaking frequency. The comfort and safety belt calibration optimization of the function can be completed.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of automobiles, and particularly relates to an active pre-tightening safety belt bench calibration system, a working method thereof, and a vehicle. BACKGROUND

[0002] The statements in this section merely provide background information related to the present application and do not necessarily constitute prior art.

[0003] Active pre-tightening safety belts are gradually increasing in current new vehicle configuration requirements. This function can automatically recover the safety belt after the occupant gets on the vehicle, achieving better restraint protection effect; during vehicle driving, receiving signals such as front collision warning / tired driving, the safety belt will be triggered to vibrate, prompting the driver to drive safely; and in dangerous working conditions such as emergency turning and emergency braking, the safety belt is tightened in advance, which can restrain the driver on the seat back and reduce the risk of injury and death.

[0004] However, there is currently a lack of active pre-tightening safety belt bench calibration systems, which cannot realize active pre-tightening safety belt bench calibration and are difficult to complete the safety and comfort performance optimization of active pre-tightening safety belts. SUMMARY

[0005] To solve the above problems, the present application provides an active pre-tightening safety belt bench calibration system, a working method thereof, and a vehicle, which realizes the calibration of safety belt tightening force value and / or safety belt vibration frequency under different working conditions, and can complete the comfort and safety belt calibration optimization of the function.

[0006] According to some embodiments, the present application adopts the following technical scheme:

[0007] The first aspect of the present application provides an active pre-tightening safety belt bench calibration system, which comprises a bench, a safety belt arranged on the bench, an integrated touch screen display, a CAN box and a retractor arranged on the bench and connected in sequence, and the retractor comprises a controller and a motor, and the safety belt is connected with the motor;

[0008] The integrated touch screen display is used for responding to the working condition signal, retrieving and sending the message corresponding to the working condition signal;

[0009] The CAN box is used for converting the message into an analog signal;

[0010] The controller is used for adjusting the trigger current, voltage and time curve of the motor after receiving the analog signal, driving the motor to rotate, realizing the tightening and / or vibration of the safety belt, and calibrating the safety belt tightening force value and / or safety belt vibration frequency.

[0011] Further, the working condition signals include: webbing gap elimination, webbing warning shaking, webbing auxiliary recovery and emergency posture holding.

[0012] Further, the integrated touch screen display is further configured to preset messages corresponding to different working condition signals.

[0013] Further, the bench includes a pull-up bar support arranged on the footrest surface.

[0014] The top end of the pull-up bar support is provided with a pull-up bar, and the pull-up bar is used for the safety belt to pass through.

[0015] Further, the safety belt is fixedly provided with a lock part at an end away from the motor.

[0016] Further, the seat system is further included.

[0017] The seat system is installed on a seat slide rail, and the seat slide rail is installed on the footrest surface of the bench through a seat slide rail mounting hole.

[0018] Further, the bench includes a steering wheel mounting support arranged on the footrest surface, and the steering wheel is mounted on the side of the steering wheel mounting support.

[0019] Further, the bench further includes an adjustable connecting rod mechanism and a base support.

[0020] The adjustable connecting rod mechanism is installed at the top end of the steering wheel mounting support through the base support, and the integrated touch screen display is installed at the end of the adjustable connecting rod mechanism.

[0021] The second aspect of the present application provides a working method of the active pre-tightening safety belt bench calibration system according to the first aspect of the present application, including:

[0022] The integrated touch screen display responds to the working condition signal, calls and sends the message corresponding to the working condition signal.

[0023] The CAN box converts the message into an analog signal.

[0024] After the controller receives the analog signal, the trigger current, voltage and time curve of the motor are adjusted, the motor is driven to rotate, the tightening and / or shaking of the safety belt is realized, and the safety belt tightening force value and / or the safety belt shaking frequency are calibrated.

[0025] The third aspect of the present application provides a vehicle adopting the active pre-tightening safety belt bench calibration system according to the first aspect.

[0026] Compared with the prior art, the present application has the following beneficial effects:

[0027] The application uses an integrated touch screen display, simulates a car CAN bus system, uses a software graphical coding tool to preset signal inputs of working conditions such as gap elimination, fatigue reminder, and posture keeping, converts the preset code information into analog signals recognizable by a chip through a CAN box as a signal conversion tool, and receives signals by a retractor ECU to control current, voltage, and time curve to drive a motor to rotate to realize corresponding working conditions, realize calibration of seat belt tightening force and / or seat belt shaking frequency under different working conditions, and complete functional comfort and seat belt calibration optimization. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings, which form a part of this specification, are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification. The embodiments of the application, and their

[0029] Figure 1 is a left view of an active pre-tightening seat belt bench calibration system of the embodiment one of the application;

[0030] Figure 2 is a right view of an active pre-tightening seat belt bench calibration system of the embodiment one of the application;

[0031] Figure 3 is a structure diagram of a coordinate bench of the embodiment one of the application;

[0032] Figure 4 is a structure diagram of a touch screen display of the embodiment one of the application;

[0033] Figure 5 is a logic diagram of active pre-tightening seat belt graphical calibration of the embodiment one of the application. DETAILED DESCRIPTION

[0034] The application will be further described below in conjunction with the drawings and embodiments.

[0035] It should be noted that the following detailed description is illustrative only, and is intended to provide further description in order to provide a further understanding of the application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0036] It should be noted that the terms used herein are only intended to describe specific embodiments and are not intended to limit the exemplary embodiments according to the application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of a feature, step, operation, device, component, and / or combination thereof.

[0037] Embodiment one

[0038] The embodiment provides a kind of active pre-tightening safety belt bench calibration system.

[0039] The realization of active pre-tightening safety belt comfort and safety function needs to interact with BCM (vehicle control module), SCU (seat control module), DMS (fatigue driving), AEB (emergency brake), FCW (front collision pre-tightening) controller signal.

[0040] The embodiment provides a kind of active pre-tightening safety belt bench calibration system, simulates simple restraint system, as shown in Figure 1 And Figure 2 As shown, it includes bench 1, steering wheel 2, integrated touch screen display 3, seat system 4, safety belt system 5, CAN box 6, other power harnesses and other parts.

[0041] As shown in Figure 3 Bench 1 includes foot surface, lifting ring (guide ring) support 7 provided on foot surface, retractor, mounting bracket 8, steering wheel mounting bracket 9, adjustable connecting rod mechanism 11 and base bracket 12. The lower end piece of the retractor is fixed to the mounting bracket 8.

[0042] Seat slide rail mounting hole 10 is formed on the foot surface, and the seat slide rail is mounted on the foot surface through the seat slide rail mounting hole 10. The seat system 4 is mounted on the seat slide rail, and the seat system 4 includes a seat and a seat adjustment system. The seat adjustment system is externally connected to a power supply, and the seat can be electrically adjusted to move up and down or move forward and backward along the seat slide rail. The upward stroke is 40 mm, the downward stroke is 20 mm, the forward stroke is 180 mm, and the backward stroke is 60 mm.

[0043] The lifting ring (guide ring) support 7 and the steering wheel mounting bracket 9 can set the use height of the lifting ring and the steering wheel according to the actual project coordinates.

[0044] As shown in Figure 4 The adjustable connecting rod mechanism 11 is mounted at the top end of the steering wheel mounting bracket 9 through the base bracket 12, and the integrated touch screen display 3 is mounted at the end of the adjustable connecting rod mechanism 11. The adjustable connecting rod mechanism 11 is convenient for adjusting and operating use of different body heights.

[0045] The steering wheel 2 is mounted on the side of the steering wheel mounting bracket 9 and below the base bracket 12.

[0046] The safety belt system 5 includes a safety belt, a retractor, a guide ring and a lock catch part.

[0047] The top end of the lifting ring (guide ring) support 7 is provided with a lifting ring, which is used for the safety belt to pass through.

[0048] The safety belt is fixedly provided with a lock catch part at one end, and is connected with the retractor at the other end.

[0049] The retractor is fixedly installed on the footrest surface through the retractor mounting bracket 8, and the retractor and the lifting ring are both located on the side of the lifting ring bracket 7 close to the seat.

[0050] The retractor is provided with an ECU (controller) and a motor. The controller is used to receive the signal instruction of the CAN box 6, and the controller drives the motor to perform the functions of seat belt tightening and shaking.

[0051] The integrated touch screen display 1 can simulate the CAN bus system of the automobile, and use a software graphical coding tool to preset the messages of the working condition signal inputs of the BSR (belt slack removal), the HW (belt warning shaking (fatigue reminder)), the BBA (belt auxiliary recovery), and the PP (posture preservation) and the like. The integrated touch screen display responds to the working condition signal, and calls and sends the message corresponding to the working condition signal.

[0052] The CAN box 6 is used as a signal conversion tool, and can convert the received preset code (message) into an analog signal recognizable by a chip. The CAN box is connected to the pin angle of the retractor through a plug-in wire harness: CAN_H (bus high level), CAN_L (bus low level), KL30 (power supply), and ground wire.

[0053] The ECU of the retractor receives the analog signal to control the current to drive the motor to rotate to realize the corresponding working condition. In different working conditions, the ECU adjusts the trigger current, voltage and time curve of the motor, acquires the seat belt tightening force value and / or the seat belt shaking frequency through the belt shoulder sensor (a shoulder strap force sensor arranged on the belt), returns the trigger current, voltage and time curve of the motor, together with the seat belt tightening force value and / or the seat belt shaking frequency, to the integrated touch screen display, and realizes the calibration of the seat belt tightening force value and / or the seat belt shaking frequency.

[0054] An occupant is simulated to get on the real vehicle, the seat lock buckle is inserted, and the seat stroke is adjusted. As shown in Figure 5 The integrated touch screen display 1 is operated to select the function working condition entrance. During this period, the occupant holds the steering wheel 2 to simulate the driving state and experience the function feeling.

[0055] If the working condition is selected as the BSR of the belt gap elimination, click Send Message, after initialization (Initialize) and waiting (app.wait), the message is sent: Vehicle Speed≥10km / h, Seat Belt Switch=0x0:Fasten (indicating the lock buckle is inserted). The CAN box converts the message into an analog signal, the active pre-tightening safety belt receives the signal, the ECU executes the function, sends BSR St=0x1:Active (BSR function activation), and the function is activated. Moreover, the ECU adjusts the trigger current, voltage, and time curve of the motor, drives the motor to rotate, and calibrates the safety belt tightening force value and / or the safety belt shaking frequency.

[0056] If the working condition is selected as the belt warning shaking, click Send Message, after initialization (Initialize) and waiting (app.wait), the message is sent: FCWMode=0x2:Active mode (front collision active signal), AEBDecCtrlRequest=0x1:Demand (active brake request signal), DMS_1_DrvrFatigLvl=0x4:Asleep (fatigue driving sleep level state). The CAN box converts the message into an analog signal, the active pre-tightening safety belt receives the signal, the ECU executes the function, sends HWSt=0x1:Active (belt warning shaking function activation), and the function is activated. Moreover, the ECU adjusts the trigger current, voltage, and time curve of the motor, drives the motor to rotate, and calibrates the safety belt tightening force value and / or the safety belt shaking frequency.

[0057] If the working condition is selected as the belt auxiliary recovery, click Send Message, after initialization (Initialize) and waiting (app.wait), the message is sent: Seat Belt Switch=0x0:Fasten→0x1:Unfasten (lock buckle opening signal), DriverDoorSts=0x1:Open (door opening signal). The CAN box converts the message into an analog signal, the active pre-tightening safety belt receives the signal, the ECU executes the function, sends BPASt=0x1:Active (BPA belt auxiliary recovery function activation), and the function is activated. Moreover, the ECU adjusts the trigger current, voltage, and time curve of the motor, drives the motor to rotate, and calibrates the safety belt tightening force value and / or the safety belt shaking frequency.

[0058] According to the simulated function experience, the trigger current, voltage, and time curve of the retractor can be adjusted, the voltage control force value can be controlled, and the time monitoring force value can be kept for a certain time, so as to complete the function comfort and safety belt calibration optimization.

[0059] The bench can expand the functions of the seat system, new technologies such as light-emitting lock, lifting lock, etc., and calibrate the safety and comfort of the restraint system.

[0060] The embodiment provides a kind of active pre-tightening safety belt bench calibration system, using integrated touch screen display, simulate automobile CAN bus system, utilize software graphical coding tool to preset the signal input of clearance elimination, fatigue reminder, posture keeping etc. Working condition, the code information preset is converted into chip recognizable analog signal by CAN box as signal conversion tool, and the signal is received by retractor ECU, so as to control current, voltage and time curve and drive motor to rotate to realize corresponding working condition, realize the calibration of safety belt tightening force value and / or safety belt dither frequency under different working conditions.

[0061] Embodiment two

[0062] The embodiment provides a kind of active pre-tightening safety belt bench calibration system as described in embodiment one, and the specific steps include:

[0063] Integrated touch screen display responds to working condition signal, retrieves and sends the message corresponding to working condition signal;

[0064] CAN box converts message into analog signal;

[0065] After receiving analog signal, controller adjusts the trigger current, voltage and time curve of motor, drives motor to rotate, realizes the tightening and / or dithering of safety belt, to calibrate safety belt tightening force value and / or safety belt dither frequency.

[0066] The embodiment provides a kind of active pre-tightening safety belt bench calibration method, using integrated touch screen display, simulate automobile CAN bus system, utilize software graphical coding tool to preset the signal input of clearance elimination, fatigue reminder, posture keeping etc. Working condition, the code information preset is converted into chip recognizable analog signal by CAN box as signal conversion tool, and the signal is received by retractor ECU, so as to control current, voltage and time curve and drive motor to rotate to realize corresponding working condition, realize the calibration of safety belt tightening force value and / or safety belt dither frequency under different working conditions.

[0067] Embodiment three

[0068] A kind of vehicle, using the active pre-tightening safety belt bench calibration system described in embodiment one.

[0069] The above only is the preferred embodiment of the application, and is not used to limit the application, for the person skilled in the art, the application can have various changes and changes. Any modification, equivalent replacement, improvement etc. made by the person skilled in the art within the spirit and principle of the application without creative labor, should be included in the protection scope of the application.

Claims

1. An active pretensioner seat belt bench calibration system, characterized by, The system comprises a rack, a safety belt arranged on the rack, an integrated touch screen display, a CAN box and a retractor arranged on the rack in sequence, and the retractor comprises a controller and a motor, and the safety belt is connected with the motor; The integrated touch screen display is used for calling and sending a message corresponding to the working condition signal in response to the working condition signal; The integrated touch screen display is also used for simulating a CAN bus system of an automobile, and a software graphical coding tool is used to preset the message corresponding to different working condition signals; the working condition signals include elimination of a belt gap, belt warning shaking, belt auxiliary recovery and emergency posture keeping; The CAN box is used for converting the message into an analog signal; The controller is used for adjusting a trigger current, a voltage and a time curve of the motor after receiving the analog signal, driving the motor to rotate, realizing tightening and / or shaking of the safety belt, and calibrating a safety belt tightening force value and / or a safety belt shaking frequency. The rack comprises a steering wheel mounting support arranged on a footbed, and a steering wheel is arranged on a side of the steering wheel mounting support; the rack further comprises an adjustable connecting rod mechanism and a base support; the adjustable connecting rod mechanism is arranged at a top end of the steering wheel mounting support through the base support, and the integrated touch screen display is arranged at an end of the adjustable connecting rod mechanism.

2. The active pretension seat belt bench calibration system of claim 1, wherein, The rack comprises a ring support arranged on the footbed; A top end of the ring support is provided with a ring, and the ring is used for the safety belt to pass through.

3. The active pretension seat belt bench calibration system of claim 1, wherein, An end of the safety belt away from the motor is fixedly provided with a lock part.

4. The active pretension seat belt bench calibration system of claim 1, wherein, The system further comprises a seat system; The seat system is arranged on a seat slide rail, and the seat slide rail is arranged on a footbed of the rack through a seat slide rail mounting hole.

5. The working method of the active pre-tightening seat belt bench calibration system according to any one of claims 1-4, characterized in that, The system comprises: The integrated touch screen display is used for calling and sending a message corresponding to the working condition signal in response to the working condition signal; The CAN box is used for converting the message into an analog signal; The controller is used for adjusting a trigger current, a voltage and a time curve of the motor after receiving the analog signal, driving the motor to rotate, realizing tightening and / or shaking of the safety belt, and calibrating a safety belt tightening force value and / or a safety belt shaking frequency.

6. A vehicle characterized by The system is used for calibrating a safety belt rack system according to any one of claims 1-4.

Images