CN1177198C - Vehicle pedal surface fixed detection device - Google Patents

Abstract

The present invention relates to a vehicle pedal surface fixed detection device, which belongs to the field of vehicle detection in mechanical engineering. The present invention mainly comprises a pedal, a pedal surface holder, a pedal force sensor, a screw (1), a screw (2), a screw (3) and an inclination angle displacement sensor, the pedal force sensor is fixed on the pedal surface holder by the screw (1); the inclination angle displacement sensor is fixed in the position on the side of the pedal surface holder by the screw (2); the pedal surface holder, and the pedal force sensor and the inclination angle displacement sensor which are fixed on the pedal surface holder are held on the pedal surface of an operation pedal to be detected and tightly fixed by the screw (3). The present invention realizes the direct synchronous dynamic detection of the stress and the corresponding rotation angle of the pedal and has the characteristics of few parts, light weight, simple and reliable data obtained by the detection, convenient installation, adjustment and fixing, and furthermore, the present invention is suitable for braking, engaging and disengaging of vehicles and engineering machinery, operation force acceleration of the pedal and synchronous dynamic detection corresponding to the displacement operation performance.

Description

The fixed pick-up unit of pedal of vehicles plate face

Technical field

What the present invention relates to is a kind of vehicle detection apparatus, and the fixed pick-up unit of particularly a kind of pedal of vehicles plate face belongs to the vehicle detection field in the mechanical engineering.

Background technology

The angular displacement of the pedal force of vehicle or some engineering machinery controlled pedal and this controlled pedal correspondence is the key character parameter of catanator Performance Detection such as clutch coupling or detent, by synchronously continuously the foot pedal power of detection of dynamic driver controlled pedal in the vehicle ' process and the corner displacement corresponding relation of this controlled pedal, contrast situations such as the design correctness of passing judgment on catanator, assembly quality, system wear looseness fault.Be to adopt a pedal force sensor and a linear displacement transducer and corresponding pedal control power and the corresponding pedal travel that detects controlled pedal with the detector of installing mechanism composition that be connected at present, find by literature search, China Patent No. is: 98209542.2, notification number is: CN2329944Y, name is called: the utility model patent of automobile pedal travel and pedal force detector, this patent readme is: " automobile pedal travel and pedal force detector are grouped into by mechanical part and signal processing part; it is characterized in that said mechanical part is by the fixed cover bucket; quill; sensor; instrument is formed; quill is sleeved in the fixed muffle, and can relatively move, but the hook of up-down adjustment is housed on the fixed cover barrel, fix by wing nut, one end of quill is equipped with snap ring, pedaling force sensor is contained in the snap ring place, instrument is contained in an end of fixed muffle, instrument is provided with zeroing knob and microcomputer interface, Return spring and displacement transducer are installed between fixed muffle and the quill, its this moment signal after signal Processing, on panel board, show proving installation." though this utility model can testing vehicle pedal force and pedal travel; the test value of pedal travel is straight-line displacement; and the controlled pedal of actual vehicle is the hinged rotational structure of an end, and its pedal travel displacement is a corner displacement, so test value is not actual changing value; Retracing spring between this utility model fixed muffle and the quill has added an elastic force, and the foot pedal power of the value that records like this when not having the installation and measuring instrument is different, has error; The mode that this utility model adopts fixture block to clamp the tested vehicle bearing circle installs and fixes, and this brings inconvenience for the real-time testing of automobile under the road driving condition; This utility model adopts on fixed muffle, quill and retracing spring and the bearing circle and installs and fixes the formula structure, make whole detector part more heavier, longitudinal size is bigger, because the terrain clearance of the different vehicle bearing circle of same model bottom is also not necessarily identical, it is also convenient inadequately to adjust when causing installing, so this The Application of Technology scope is very limited.

Summary of the invention

The present invention is directed to the deficiencies in the prior art and defective, provide a kind of pedal of vehicles plate face fixed pick-up unit, eliminate one type of prior art syringe and can only test the defective of pedal travel straight-line displacement value, enable directly to be fixed on the shaft of controlled pedal connecting link and the directly suffered power of test pedal and the proving installation of pedal corner displacement value, and bearing circle is rotatable when making it overcome under real vehicle road driving condition test, value that records and actual vehicle are handled the different technical limitation of situation, thereby satisfy the synchronous dynamic test request of the corresponding corner of the stressed and pedal of pedal, further satisfy making whole detection device lightweight purpose simple in structure.

The present invention is achieved by the following technical solutions, the present invention mainly comprises: pedal, pedal plate face holder, pedal force sensor, screw (), screw (two), screw (three), inclination angle displacement transducer, the pedal force sensor by screw () be fixed on pedal plate face holder above, the inclination angle displacement transducer is fixed on position on the side of pedal plate face holder by screw (two), pedal plate face holder is clamped on the pedal tread of tested controlled pedal together with pedal force sensor and inclination angle displacement transducer fixing on it, and fastening by screw (three).

When reality was used, pedal force sensor of the present invention adopted flat side S shape resistance-strain type load sensor or the special-purpose pedal force sensor of resistance-strain type, and the pin that can test on the controlled pedal is stepped on power, that is the human body pedal force; A cylindrical servo obliquity sensor or a vertically arranged oblate condenser type single shaft obliquity sensor of vertically installing is adopted in the corner displacement test of pedal correspondence, such sensor has reliability height, characteristic of high test precision, the inclination angle displacement of synchronism detection pedal simultaneously, because the pedal tread of obliquity sensor by pedal plate face holder and controlled pedal rigidly fixes, so the inclination angle shift value equals this pedal and fixes the corner displacement value of hinged point around self.The cable of the angular displacement test signal of pedal force and pedal correspondence by proving installation upper footboard force transducer and obliquity sensor is connected to the portable signal conditioning module with car, directly import portable computer then, the inclination angle displacement of foot pedal power and this pedal correspondence of each instantaneous pilot control pedal is tested, shown, writes down to dynamic real-time in the driving procedure of vehicle ', and can do displacement stroke scope and the peaked analysis of pedal force.

The present invention has substantive distinguishing features and marked improvement, because adopted obliquity sensor, so directly test out the corner variable quantity of pedal, needn't convert by how much again and try to achieve, therefore just can not produce indirect measuring error yet, and avoid adopting separate mode to install and fix the difficulty of corner displacement sensor at the hinged place of controlled pedal connecting link; Owing to do not had retracing spring on the structure, the also elastic force that does not just add in addition, the pedal force that records is actual foot pedal power value; So just realized the direct synchronous dynamic test of the corresponding corner of the stressed and pedal of pedal.Because proving installation no longer adopts the mode that installs and fixes of fixture block clamping tested vehicle bearing circle, not only avoided the test error of pedal force and pedal displacement, also provide great convenience for the dynamic test of vehicle under real vehicle road driving condition; Proving installation is directly installed on the plate face of tested controlled pedal among the present invention, its pedal plate face holder is the fixture type structure that there is groove at the middle part, the quick location of height and fore-and-aft direction when being suitable for the proving installation installation, the device of structure of the present invention has the advantages that part is few, in light weight, profile is little, the data that test obtains are simple and reliable, and the installation adjustment is fixing very convenient, is applicable to the synchronous dynamic test of the steering force and the corresponding displacement maneuvering performance of vehicle, engineering machinery braking, clutch, accelerator pedal.

Description of drawings

Fig. 1 structure front elevation of the present invention

Fig. 2 structure right view of the present invention

Fig. 3 structure vertical view of the present invention

Embodiment

As Fig. 1, Fig. 2 and shown in Figure 3, the present invention mainly comprises: mainly comprise: pedal 1, pedal plate face holder 2, pedal force sensor 3, screw 4, screw 5, screw 6, inclination angle displacement transducer 7, pedal force sensor 3 by screw 4 be fixed on pedal plate face holder 2 above, inclination angle displacement transducer 7 is fixed on position on the side of pedal plate face holder 2 by screw 5, pedal plate face holder 2 is clamped on the pedal tread of tested controlled pedal 1 together with pedal force sensor 3 and inclination angle displacement transducer 7 fixing on it, and fastening by screw 6.

Pedal plate face holder 2 has the fixture type structure of groove for the middle part, and the groove width of this groove is slightly larger than the thickness of the flat side's shape of pedal plate face.The length of groove runs through anchor clamps, and the reverse side of anchor clamps has threaded hole, and the front of anchor clamps is as the basal plane that installs and fixes of pedal force sensor (3).

Pedal force sensor 3 is the special-purpose pedal force sensor of flat side S shape resistance-strain type load sensor or resistance-strain type.Inclination angle displacement transducer 7 is the cylindrical servo obliquity sensor or the vertically arranged oblate condenser type single shaft obliquity sensor that vertically are provided with.

Claims (4)

1. A vehicle pedal surface fixed detection device, comprising: a pedal (1), a pedal force sensor (3), characterized in that it also includes: a pedal surface clamp (2), a screw (4), a screw (5 ), screw (6), inclination displacement sensor (7), its connection mode is, the pedal force sensor (3) is fixed on the top of the pedal plate surface holder (2) by screw (4), and the inclination displacement sensor (7) is formed by The screw (5) is fixed on the upper side of the pedal surface clamp (2), and the pedal surface clamp (2) together with the pedal force sensor (3) and the inclination displacement sensor (7) fixed on it are clamped on the measured The pedal surface of the manipulation pedal (1) is fastened by screws (6). 2. The vehicle pedal surface fixed detection device according to claim 1, characterized in that the pedal surface clamp seat (2) is a clamp structure with a groove in the middle, and the groove width of the groove is slightly larger than that of the pedal flat square plate The thickness of the surface and the length of the groove run through the clamp, the reverse side of the clamp has threaded holes, and the front of the clamp is used as the installation and fixing base surface of the pedal force sensor (3). 3. The vehicle pedal surface fixed detection device according to claim 1, characterized in that the pedal force sensor (3) is a flat S-shaped resistance strain type load sensor or a resistance strain type special pedal force sensor. 4. The vehicle pedal surface fixed detection device according to claim 1, characterized in that the inclination displacement sensor (7) is a vertically arranged cylindrical servo inclination sensor or a vertically installed oblate capacitive single-axis inclination sensor. sensor.

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