CN102692304A

CN102692304A - Automotive seat test system and method thereof

Info

Publication number: CN102692304A
Application number: CN201210183845XA
Authority: CN
Inventors: 赵玲
Original assignee: SAIC Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2012-06-05
Filing date: 2012-06-05
Publication date: 2012-09-26

Abstract

The invention discloses a seat test system. The system comprises an action input unit, a control unit, a first action unit and a second action unit, wherein the action input unit is provided with a man-machine display interface and inputs a control command to the control unit; the control unit inputs control commands into the first action unit and the second action unit respectively; the first action unit comprises a fixture which is used for fixing a tested seat and a servo valve in the first action unit; and the second action unit comprises a simulation hip which is fixed above the tested seat and a servo motor in the second action unit. The test system has a simple structure, can test conveniently and quickly, and can perform circulation test on seats under two actions, namely jolting and creepage by using the method to test the durability and service life of the seats.

Description

A kind of automotive seat pilot system and method

Technical field

The present invention relates to auto parts and components Performance Detection field, be specifically related to a kind of seat jolt wriggling experiment control system and method.

Background technology

As everyone knows; Automotive seat is one of requisite parts of automobile; Also be that automobile contacts parts the most closely with driver and crew, people are when driving and riding in an automobile, and automotive seat is carrying the weight of our health; We are felt comfortably cool and safety, so the level of comfort of seat directly have influence on the whole comfort property of automobile.

Automotive seat is before design and installation is to the automobile; Need test and detect its performance; Mainly comprise aspects such as durability degree and serviceable life; Existing checkout equipment is complex structure mostly, can not effectively simulate user mode, can not detect accurately aspects such as durability degree and serviceable lifes.

Summary of the invention

Technical matters to be solved by this invention is that the buttocks of realizing a kind of pitch action and anthropomorphic dummy of simulated automotive seat is sitting in the detection of two aspects of peristaltic action on the seat, thereby tests out the permanance of automotive seat and the system and the method thereof of security.

To achieve these goals; The technical scheme that the present invention adopts is: a kind of seat pilot system; System comprises action input block, control module, first motor unit and second motor unit; Described action input block is provided with the man-machine display interface and to the control module input of control commands; Described control module is respectively to first and second motor unit input of control commands, described first control module comprise fixing by the anchor clamps of test seat with and inner servo-valve, described second control module comprise be fixed in by the simulation stern of test seat top with and inner servomotor.

Described control module is the XC888 of an Infineon single-chip microcomputer.

The control command of the reception control module of described first motor unit is via change-over circuit output respective electrical current control servo-valve stretching frequency.

The control command of the reception control module of described second motor unit is via the stall and the rotating of optocoupler and diode capacitance buffer circuit output corresponding motor pulse signal and direction signal control realization servomotor.

Utilize the test method of seat pilot system:

Step 1, power on action input block and control module system initialization;

Step 2, according to the man-machine display interface relevant position input suitable test parameters of experiment purpose at the action input block;

Step 3, action input block confirm whether parameter is imported correctly, if incorrect re-entering, if would correctly get into next step;

Step 4, control module acceptance test parameter, and open interruption, allow serial communication to interrupt opening, set corresponding baud rate;

Step 5, control module receive data and have opened interruption, and program gets into interrupts;

Step 6, control module are analyzed and are handled data;

Step 7, control module are exported control command and are carried out by first motor unit and second motor unit.

Described step 6 is all to deposit data in buffer area, if not continuing reception; If entering next step; Metadata cache SBUFF is full, judge earlier header file whether be with communications protocol in predetermined head conform to, if do not conform to, this organizes data and abandons, and just begins if conform to, and reads the data among the SBUFF in order; The data that read are handled, and whether the value after the data addition conforms to last position, is exactly that the data transmission is wrong if not that, and these group data are abandoned, and negate to reply; If this group data are correct transmission, positive response, and get into next step; Get into principal function, convert corresponding data processing into the control relevant numerical, bring in the algorithm, carry out drive controlling.

The invention has the advantages that this test system architecture is simple, it is convenient to test, and utilize its method can to seat jolt and two actions of wriggling under cyclic test, the test seat durability and serviceable life.

Description of drawings

Face the content of every width of cloth accompanying drawing expression in the instructions of the present invention and the mark among the figure down and make brief description:

Fig. 1 is the system chart of experiment control system;

Fig. 2 is the control flow chart of experiment control system.

Mark among the above-mentioned figure is: 1, action input block; 2, control module; 3, first motor unit; 4 second motor units.

Embodiment

Can know referring to Fig. 1; The seat pilot system comprises action input block 1, control module 2, first motor unit 3 and second motor unit 4; The input block 1 that wherein moves comprises man-machine display interface and communications protocol port; The man-machine display interface can be by the testing crew input test parameter, also can the display system situation, and its test parameters that man-machine display interface is received through serial ports is converted into the language that single-chip microcomputer can discern and passes to control module 2; Control module 2 adopts the XC888 of Infineon single-chip microcomputer; First motor unit 3 comprises fixing by the anchor clamps of test seat, be exactly in fact one from the seat bottom surface fixed seat, the anchor clamps of simulation chair mounted in automobile can be the installing plates that is provided with the seat trapped orbit; The anchor clamps of first motor unit 3 are arranged on the worktable, and its inner electron servo controller is connected with the servo-valve of its Control work, and the moving component that anchor clamps are driven by servo-valve drives and on worktable, moves; Be example with " being provided with the installing plate of seat trapped orbit " specifically, installing plate is located at worktable top, installing plate upper fixed seat; Both sides, bottom surface connecting rod one end is hinged; Be provided with push rod in the worktable, the extended rod hinge connection in push rod two ends and installing plate bottom surface, push rod is connected with the moving component that the clothes valve drives; Thereby promote the push rod tangential movement, realize the jolt function of installing plate on worktable.Be provided with the electric current conversion circuit between the control module 2 and first motor unit 3, make the servo valve seat stretching motion of the control module corresponding Current Control of 2 outputs realize bump test;

Second motor unit 4 comprises the simulation stern that is fixed in by test seat top; With and the inner servo controller and the servomotor of its control; Be provided with optocoupler and diode capacitance buffer circuit between the control module 2 and second motor unit 4; Thereby control motor pulses signal and direction signal are realized the stall and the rotating of servomotor, thereby realize the wriggling test of false stern.Specifically, servomotor is hinged on the fixed bar that worktable extends upward out, fixed bar fixedly the position of servomotor be positioned at anchor clamps install seat directly over; Promptly after chair mounted was good, servomotor was positioned at the seat top, and servomotor is connected with transmission case; Drive the plate left-right rotation of bottom surface simulation buttocks, the anglec of rotation is adjustable arbitrarily, adjusts at computer interface; 1 ° or 10 ° of each adjustment amount, the shell of servomotor is provided with the counterweight peg that stretches out simultaneously, is used to hang counterweight; Under the pressure of counterweight, be pressed in seat and do the left rotation and right rotation motion, thereby the anthropomorphic dummy is sitting in the function of seat.

By test parameters frequency, amplitude, angle, the cycle index of action input block 1 artificial input, thereby accurately control the moving and anchor clamps vibration frequency of false stern peristaltic velocity, the durability and the serviceable life of accurately testing seat.

Can know referring to Fig. 2, utilize its control method of above-mentioned pilot system specifically to may further comprise the steps:

System initialization is carried out to man-machine display unit and control module 2 in step 1, the back that powers on;

Step 2, according to the experiment purpose testing crew in the suitable test parameters of relevant position, man-machine display interface input;

Step 3, man-machine display interface confirm whether parameter is imported correctly, if incorrect re-entering, if would correctly get into next step;

After serial ports port selection connection is carried out at step 4, man-machine display interface, send data for control module 2;

Step 5, control module 2 acceptance test parameters are opened interruption simultaneously, allow serial communication to interrupt opening, and set corresponding baud rate etc.;

Step 6, control module 2 receive data and have opened interruption, and program gets into interrupts;

Step 7,2 pairs of data of control module are analyzed and are handled.Specifically be exactly to judge whether that buffer memory goes internal memory full; Be that data all deposit buffer area in, if not continuing reception; If entering next step; Metadata cache SBUFF is full, judge earlier header file whether be with communications protocol in predetermined head conform to, if do not conform to, this organizes data and abandons, and just begins to read in order the data among the SBUFF if conform to; The data that read are handled, and whether the value after the data addition conforms to last position, is exactly that the data transmission is wrong if not that, and these group data are abandoned, and negate to reply; If this group data are correct transmission, positive response, and get into next step; Get into principal function, convert corresponding data processing into the control relevant numerical, bring in the algorithm, carry out drive controlling;

Step 8, first motor unit 3 and second motor unit 4 receive the test parameters order of control module 2 respectively, and according to the command execution corresponding action.

Specifically be advanced line crawl test or the bump test personnel Lai Ding according to the equipment of use, why Here it is needs the reason of man-machine interface; As long as input parameter in the test that in following man-machine interface, needs, that test is just started working, if two kinds are tested all input parameters, two kinds of tests are carried out simultaneously so; Second moving cell, the 4 simulation buttocks rotating ranges of the simulation buttocks of this angle are the 0-90 degree in addition, and the vibration frequency that jolts is 0-4hz, and the vibrations number of times is 0-65000 time, vibrations amplitude 0-127 millimeter.

Combine accompanying drawing that the present invention has been carried out exemplary description above; Obviously the concrete realization of the present invention does not receive the restriction of aforesaid way; As long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; Or design of the present invention and technical scheme are directly applied to other occasion without improving, all within protection scope of the present invention.

Claims

1. seat pilot system; It is characterized in that: system comprises action input block (1), control module (2), first motor unit (3) and second motor unit (4); Described action input block (1) is provided with the man-machine display interface and to control module (2) input of control commands; Described control module (2) is respectively to first and second motor unit (3,4) input of control commands; Described first control module (3) comprise fixing by the anchor clamps of test seat with and inner servo-valve, described second control module (4) comprise be fixed in by the simulation stern of test seat top with and inner servomotor.

2. seat pilot system according to claim 1 is characterized in that: described control module (2) is the XC888 of an Infineon single-chip microcomputer.

3. seat pilot system according to claim 1 is characterized in that: the control command of the reception control module (2) of described first motor unit (3) is via change-over circuit output respective electrical current control servo-valve stretching frequency.

4. seat pilot system according to claim 1 is characterized in that: the control command of the reception control module (2) of described second motor unit (4) is via the stall and the rotating of optocoupler and diode capacitance buffer circuit output corresponding motor pulse signal and direction signal control realization servomotor.

5. utilize the test method of the described seat pilot system of claim 1-4, it is characterized in that:

Step 1, power on action input block (1) and control module (2) system initialization;

Step 2, according to experiment purpose in the suitable test parameters of relevant position, the man-machine display interface input of action input block (1);

Step 3, action input block (1) confirm whether parameter is imported correctly, if incorrect re-entering, if would correctly get into next step;

Step 4, control module (2) acceptance test parameter, and open interruption, allow serial communication to interrupt opening, set corresponding baud rate;

Step 5, control module (2) receive data and have opened interruption, and program gets into interrupts;

Step 6, control module (2) are analyzed and are handled data;

Step 7, control module (2) are exported control command and are carried out by first motor unit (3) and second motor unit (4).

6. test method according to claim 5 is characterized in that: described step 6 is all to deposit data in buffer area, if not continuing reception; If entering next step; Metadata cache SBUFF is full, judge earlier header file whether be with communications protocol in predetermined head conform to, if do not conform to, this organizes data and abandons, and just begins if conform to, and reads the data among the SBUFF in order; The data that read are handled, and whether the value after the data addition conforms to last position, is exactly that the data transmission is wrong if not that, and these group data are abandoned, and negate to reply; If this group data are correct transmission, positive response, and get into next step; Get into principal function, convert corresponding data processing into the control relevant numerical, bring in the algorithm, carry out drive controlling.