CN201173859Y

CN201173859Y - Car clutch combination property real vehicle dynamic telemetering device

Info

Publication number: CN201173859Y
Application number: CNU2008200715409U
Authority: CN
Inventors: 王群; 王丽荣; 张超; 邹稷; 衣文索; 李�杰; 张猛
Original assignee: Changchun Gold Mark Testing Equipment Co Ltd; Changchun University
Current assignee: Changchun Gold Mark Testing Equipment Co Ltd; Changchun University
Priority date: 2008-03-19
Filing date: 2008-03-19
Publication date: 2008-12-31
Anticipated expiration: 2018-03-19

Abstract

The utility model relates to an automobile clutch combination property real automobile dynamic state telemetering device which belongs to the electromechanical category and has the structure that a temperature gathering sensor is arranged between an outer cylinder sleeve and a transmission shaft, and an infra-red laser temperature measuring sensor forms a temperature measuring circuit; a revolution speed sensor is a revolution speed measuring circuit composed of a permanent-magnet and a Hall sensor; a torque force measuring circuit is provided with a strain foil and a resistor which are stuck on the transmission shaft to form a induction force measuring bridge circuit and a power supply circuit; a signal gathering and emitting system is connected with the temperature gathering sensor, the revolution speed sensor and the torque force measuring circuit; the signal gathering and emitting system is connected with an RFID receiver; the RFID receiver is connected with the devices such as a computer core, a portable type processor, a printer, etc. The automobile clutch combination property real automobile dynamic state telemetering device has the advantages of simple structure, convenient use, high speed and nimbleness, and scientifically realizes automobile clutch combination property real automobile dynamic state telemetering.

Description

Automobile clutch comprehensive performance real vehicle dynamic telemetry device

Technical field

The utility model relates to electrical category, particularly a kind of automobile clutch comprehensive performance real vehicle dynamic telemetry device.

Background technology

As everyone knows, along with social development, automobile industry development is very rapid, as the clutch coupling in the car transmissions is an important components, automobile relies on the friction between the driving and driven part of clutch coupling and separates the power that transmits and cut off between engine and the drive axle, guarantee the reliability and the comfortableness of automobile operation with this, so require very high to its clutch characteristics check and certificate authenticity; And at present domestic and international most of clutch coupling factory adopts static detection method to the clutch coupling performance, can test respectively the various performances of cap assembly and clutch drived disk assy.Producer's exploitation clutch coupling performance experiment table is also arranged in recent years, be that the simulated automotive actual working state is measured performance of clutch, comprise clutch coupling thermal load mensuration, static friction torque is measured, sliding friction torque mensuration and clutch lining abrasion resistance properties mensuration etc., but the bench run situation of automobile clutch and the dynamic operation condition of real vehicle live telecast have bigger difference, especially start at engine and Clutches Transmission Systems, the torque peak that stops etc. producing in the working condition transfer process may be much larger than operation torque at ordinary times, this will cause the destructiveness damage of clutch coupling, even makes its disablement; And the bench test measurement is average torque or Steady Torque under the duty, it can not react the actual magnitude and the response speed of dynamic torque, can not carry out objectively the combination property of clutch coupling under in working order, the assessment and the mensuration of science, therefore press for and improved.

The utility model content

The purpose of this utility model is to provide a kind of automobile clutch comprehensive performance real vehicle dynamic telemetry device, solved the mensuration that clutch coupling commonly used moment of torsion under frictional behaviour and the temperature rising state under practical working situation transmits performance, each separate with cohesive process in characteristic mensuration such as synchronous time of moment of torsion, rotating speed, the arrival of driving and driven part, temperature rise, thereby ability evaluation performance of clutch correct, science guarantees that the safe, comfortable of automobile travels; And can reach convenient test, fast, requirement accurately.

The technical solution of the utility model is: according to the purpose of this utility model, a kind of automobile clutch comprehensive performance real vehicle dynamic telemetry device is provided, this device is because actual vehicle condition difference, can not be designed to one-piece construction, must be with the blocking Design Pattern, in automobile high-speed running, guarantee that supply module, signal processing module, signal acquisition module, signal transmission module not only being fastened under the situation of not damaging body construction between transmission shaft and the overcoat, also want coordinating and unifying work; Concrete scheme is as follows:

(1) adopt the minimum power design proposal, guarantee that power supply is supplied with when real vehicle is tested:

In circuit design in the past, power unit must have the design of voltage stabilizing, current stabilization, and the chip that uses in this device all is the low power consume military products, so adopt button cell and voltage stabilizing chip can satisfy the needs of device;

(2) the zero-clearance coating technique of foil gauge:

The bridge circuit that constitutes with two foil gauges and resistance is measured the miniature deformation of transmission shaft, and this circuit adopts independently power supply to supply with; Through a large amount of experiment and measuring and calculating, having obtained the pasting method of two foil gauges, is the most tangible position of transmission shaft stress deformation at axial miter angle, and two foil gauges are fitted with axial direction, and be angle 90 degree between them, can accurately obtain the signal of transmission shaft stress deformation; Because the distortion of steel body is extremely small, thus very high for the applying requirement of foil gauge, guarantee fitting tightly of foil gauge and transmission shaft as much as possible, be reduced to the loss of the deformation signal of steel body minimum;

(3) the portable design of transmission shaft overcoat:

Overcoat adopts the jacket type designs fix on transmission shaft, is convenient to real vehicle and measures, and the electronic control circuit plate is fixed on the outer of transmission shaft puts, with the requirement of the portable and quick nondestructive installation that reaches overcoat;

(4) clutch coupling temperature pick-up transducers adopts the infrared laser sensor for measuring temperature, transient temperature that not only can the gaging clutch surface, and do not damage car body, temperature is between 200 ℃～800 ℃, error range can satisfy the temperature survey of existing all clutch couplinges fully in ± 0.5 ℃;

(5) the mature technology RFID of present main flow is adopted in the modular design of signal wireless transmission, wireless transmission by data, this technology is to utilize the transport property of radiofrequency signal and space coupling or radar reflection, realization is to being identified the automatic identification of object, identification work need not manual intervention, can work in various rugged surroundings, can discern high-speed moving object and can discern a plurality of signals simultaneously, thus swift and convenient to operate;

(6) the NFORCE module of the present main flow of employing:

This device is to carry out the gaging clutch performance under the real vehicle work condition state, so very important to the denoising of data, the treatment effect of noise will directly influence measurement result;

(7) adopting metal strain plate is to clutch coupling Real-time and Dynamic torque measurement gordian technique;

It is narrow and small that this device torque measurement is subjected to the space, the restriction of abominable electromagnetic environment factor, so adopt and on transmission shaft, paste foil gauge composition measuring bridge, after transmission shaft is subjected to torsional interaction to produce microdeformation, cause that bridge resistance changes, the strain bridge changes in resistance changes the variation of electric signal into and realizes the measurement of moment of torsion;

(8) signal processing unit, A/D converting unit, Single Chip Microcomputer (SCM) system and RFID transmitter have constituted the signal acquisition process and the radiating circuit of system together.

Concrete structure of the present utility model is: be made of parts such as temperature acquisition sensor, speed probe, torsion metering circuit, outside cylinder sleeve, truck drive shaft, signals collecting emission coefficient, RFID receiver, computing machine, portable processor, printers, wherein, externally be provided with the temperature acquisition sensor between cylinder sleeve and the transmission shaft, it is to constitute temperature measuring circuit by the infrared laser sensor for measuring temperature; The tachometric survey circuit that speed probe is made up of permanent magnet and Hall element; The torsion metering circuit is to paste foil gauge and resistance composition torsion measurement bridge circuit and power circuit on transmission shaft; The signals collecting emission coefficient is connected with temperature acquisition sensor, speed probe and torsion metering circuit; And the signals collecting emission coefficient links to each other with the RFID receiver; The RFID receiver is connected with main frame, portable processor and printer again;

When the gaging clutch performance, the vehicle-mounted part of real vehicle dynamic detection system is contained on the transmission shaft between clutch coupling and the rear axle differential, by temperature acquisition sensor, speed probe, three unit of torsion metering circuit data are delivered to signal processing unit, after the A/D conversion, signal is delivered to the single-chip microcomputer processing unit, pass through the signal projector of RFID again, signal is sent to the RFID signal receiver, final data is presented at respectively on computing machine, portable processor and the printer.

Advantage of the present utility model is: simple in structure, easy to use, quick, quick, the realization automobile clutch comprehensive performance real vehicle dynamic telemetry of science guarantees ride safety of automobile, comfortableness.

Description of drawings:

Fig. 1 is a structure perspective diagram of the present utility model;

Fig. 2 is temperature measuring circuit of the present utility model, tachometric survey circuit and induction force metering circuit distribution schematic diagram on transmission shaft;

Fig. 3 is an embodiment synoptic diagram of the present utility model;

Fig. 4 is a signal flow graph of the present utility model;

Fig. 5 is a software block scheme of the present utility model.

Embodiment:

As accompanying drawing 1 to shown in the accompanying drawing 5, the utility model is made of temperature acquisition sensor 1, speed probe 3, torsion metering circuit 5, outside cylinder sleeve 4, truck drive shaft 6, signals collecting emission coefficient 2, RFID receiver, computing machine, portable processor, printer, wherein, externally be provided with temperature acquisition sensor 1 between cylinder sleeve 4 and the transmission shaft 6, it is to constitute temperature measuring circuit 10 by the infrared laser sensor for measuring temperature; The tachometric survey circuit 11 that speed probe is made up of permanent magnet 62 and Hall element 63; Torsion metering circuit 5 is to paste foil gauge 65 and resistance 64 composition torsion measurement bridge circuit 12 and power circuits 9 on transmission shaft 6; Signals collecting emission coefficient 2 is connected with temperature acquisition sensor 1, speed probe 3 and torsion metering circuit 5; The RFID receiver is connected with main frame, portable processor and printer again and signals collecting emission coefficient 2 links to each other with the RFID receiver;

When measuring, the vehicle-mounted part of real vehicle dynamic detection system is contained on the transmission shaft 6 between clutch coupling 8 and the rear axle differential 7, by temperature acquisition sensor 1,

speed probe

3,5 three unit of torsion metering circuit are delivered to signal processing unit to data, after the A/D conversion, signal is delivered to the single-chip microcomputer processing unit, pass through the signal transmitting system of RFID again, signal is sent to the RFID signal receiver with Wireless transmission mode, through handling, data finally can be presented at computing machine respectively, portable processor or use printer prints are come out, and are convenient to the characteristic of system is made analysis and comparison.

Claims

1, a kind of automobile clutch comprehensive performance real vehicle dynamic telemetry device, it is characterized in that: it is made of temperature acquisition sensor, speed probe, torsion metering circuit, outside cylinder sleeve, truck drive shaft, signals collecting emission coefficient, RFID receiver, computing machine, portable processor, printer, wherein, externally be provided with the temperature acquisition sensor between cylinder sleeve and the transmission shaft, it is to constitute temperature measuring circuit by the infrared laser sensor for measuring temperature; The tachometric survey circuit that speed probe is made up of permanent magnet and Hall element; The torsion metering circuit is to paste foil gauge and resistance composition torsion measurement bridge circuit and power circuit on transmission shaft; The signals collecting emission coefficient is connected with temperature acquisition sensor, speed probe and torsion metering circuit; And the signals collecting emission coefficient links to each other with the RFID receiver; The RFID receiver is connected with main frame, portable processor and printer again.