CN201532310U

CN201532310U - Complete automobile road-test testing device

Info

Publication number: CN201532310U
Application number: CN200920227635XU
Authority: CN
Inventors: 查佳韵; 程金华; 董蓉
Original assignee: Xiangyang Daan Automobile Test Center Co Ltd
Current assignee: Xiangyang Daan Automobile Test Center Co Ltd
Priority date: 2009-08-22
Filing date: 2009-08-22
Publication date: 2010-07-21
Anticipated expiration: 2019-08-22

Abstract

A complete automobile road-test testing device comprises a speed testing module, a fuel consumption testing module, a data acquisition module, a control module, a key control box and an external display. The speed testing module acquires signals of a speed sensor; the fuel consumption testing module acquires signals of a fuel flow sensor; the data acquisition module acquires and processes data of speed and fuel consumption respectively from the speed testing module and the fuel consumption testing module; the control module receives and processes signals of the speed testing module and the fuel consumption testing module and provides information to the data acquisition module and the external display; the key control box is connected to the data acquisition module and completes man-machine interaction to realize all functions of the testing device via response from the control data; and the external display can display data of speed, fuel consumption, distance, time and the like. The testing device overcomes shortages of long time consumption, low efficiency, and relatively poor data reliability and accuracy of a conventional automobile fuel consumption road-test under multiple working conditions, and has the advantages of capability of accurately testing fuel consumption in automobile road-tests under multiple working conditions, high efficiency, fuel saving and the like.

Description

Vehicle complete vehicle actual road test testing tool

Technical field

The utility model relates to a kind of vehicle complete vehicle actual road test testing tool, especially a kind of vehicle complete vehicle road multi-state fuel consumption test apparatus.

Background technology

For a long time, carrying out trap for automobile " multi-state circulating fuel consumption test " (GB/T12545.2-2001) time, mostly be to adopt in the test roads both sides to adopt stake to make range mark, quantity is several at least, one, 20 at most, carrying and putting of stake is all inconvenient, also puts wrong stake sometimes easily, and only putting stake will be consuming time many.After setting stake, test drive person just controls the speed of a motor vehicle according to the regulation of test method, gear is tested, because the instrument of motor road test in the past is based on single-chip microcomputer more, the velocity information of providing for test drive person is pointed out with digital form, the driver can only see the speed of current vehicle reality, and speed and the speed trend that current test standard requires is difficult to hold, so what cause testing is repeated poor, for obtaining the better repeatability test findings, a multi-state test needs to repeat repeatedly sometimes, length consuming time, efficient is low, and the reliability of data, accuracy is relatively poor.

Summary of the invention

, the reliability of data low, the relatively poor shortcoming of accuracy for the length consuming time, the efficient that overcome trap for automobile fuel consume multi-state test, the utility model provides a kind of fuel consume of the road of testing automobile accurately multi-state, and efficient height, fuel-efficient vehicle complete vehicle actual road test testing tool.

The technical scheme that its technical matters that solves the utility model adopts: comprise the velocity test module of a picking rate sensor signal, the fuel consume test module of a collection fuel flow transducer signal; Collection is from the data acquisition module of the speed and the fuel consume data of velocity test module and fuel consume test module, one receives and processing speed test module and fuel consume test module signal and for data acquisition module and outer display provide the control module of information, one by cable be connected to outward data acquisition module and by control module respond with finish man-machine conversation realize whole instrumental functions press key control box; The outer display of data such as be connected with control module a Chinese display menu and a speed, oil consumption, distance and time.

The beneficial effects of the utility model are that this instrument is the fuel consume of testing automobile road multi-state accurately, and the efficient height, saves fuel oil.

Description of drawings

The embodiment that provides below in conjunction with accompanying drawing further specifies the utility model.

Fig. 1 is the utility model external form synoptic diagram.

Fig. 2 is the utility model theory diagram.

Fig. 3 is a press key control box external form synoptic diagram.

Figure 4 shows that six operating mode part curves.

Embodiment

Among Fig. 1, described control module 5 and velocity test module 2, fuel consume test module 3, data acquisition module 8, power module 1 are plugged on the bus backplane respectively and concentrate and be installed in the cabinet, form a portable instrument.

Among Fig. 2, speed pickup 9 of the present utility model is installed in outside vehicle, and the travel speed of sense vehicle is connected to velocity test module 2 by cable; Fuel flow transducer 10 is connected in series in the oil supply loop of vehicle, is connected to fuel consume test module 3 by cable; Power module 1 provides power supply by bus backplane 4 for each module; Speed and fuel consume data that data acquisition module 8 is gathered from velocity test module 2 and fuel consume test module 3; Control module 5 realizes the control of data acquisition module 8, outer display 6 and the response request from press key control box 7; Outer display 6 is connected to control module 5 by cable, and various data are shown to operating personnel by outer display 6; Press key control box 7 is connected to data acquisition module 8 by cable, and operating personnel realize with the man-machine conversation of instrument by press key control box 7 and finish whole instrumental functions.Control module 5 can be connected with a printer and communication setting.The various signal wires of distribution on the bus backplane 4, each module connects the signal wire that needs separately by the connector that is connected with bus backplane.

Control module 5 is a kind of built-in industrial level computers based on the PC/104 bus, utilizes electric board as storage medium.Outer display 6 is a kind of active illuminating formula flat-panel monitors that can show Chinese character, numeral or curve as required, and resolution is 320 * 256.Press key control box 7 is the hand-held control enclosurees with four buttons, by the operation of four buttons realizations to the instrument all functions.

Described speed pickup 9 is a kind of photoelectric sensors, and sensor projects light receives the reflected light on road surface simultaneously to the road surface during work, output pulse string signal after opto-electronic conversion and tracking filter processing, and the frequency of signal is directly proportional with vehicle pace size.Fuel flow transducer 10 is a kind of turbine type sensors, can experience the following current and the adverse current of fuel oil, and the fuel flow signal of output is that the two-way phase differential is 90 ° a square-wave signal, and signal frequency is directly proportional with the fuel flow size.

Among Fig. 3, press key control box 7 has four buttons, and each button has multi-functional, and each function customizes in different menu interfaces respectively, by control module man-machine conversation is finished in the response of four keypress functions and is realized whole instrumental functions.

Principle of work of the present utility model:

The principle of work of velocity test module 2: in the process of moving, the a series of irregular sine wave signals of speed pickup 9 outputs, the centre frequency f of signal is directly proportional with the speed of a motor vehicle, these irregular sine wave signals are by the tracking filter processing of circuit of speed measurement module 2, and through further shaping, obtain square-wave signal, the corresponding fixing distance D of each square-wave signal.During test, the counter of data acquisition module 8 is counted square-wave signal, and control module 5 constantly reads count value, and the count value C that makes control module 5 add up in per 0.1 second then has speed: V=C * D/0.1.

The principle of work of fuel consume test module 3: fuel flow transducer 10 output two-way (being made as signal one and signal two) phase differential are 90 ° square-wave signal.During following current, signal one is than signal two leading 90 °; Signal one lags behind 90 ° than signal two during adverse current, and signal frequency is directly proportional with flow.Signal one inserts data acquisition module 8 as exterior interrupt, and the rising edge of signal one is as down trigger, and signal two inserts a way word input channel of data acquisition module 8, in case down trigger, read signal two,, then be following current if signal two is a low level, flowmeter numerical value C increases by 1, if signal two is a high level, then be adverse current, flowmeter numerical value C reduces 1, suppose that the fuel oil pulse equivalency is f (sensor is intrinsic), control module 5 just can calculate oil consumption Q:Q=C * f.

Driver's speed Tracking principle: according among the GB GB/T12545.2-2001 to the regulation of trap for automobile multi-state consumption trial method, can draw out a desirable rate curve from mathematics to every kind of road multi-state test, can obtain the effective coverage curve of speed again according to the velocity error of GB defined.Be six operating mode part curves as shown in Figure 4.

During test, ideal speed curve and effective velocity zone segment of curve are presented on the display screen of outer display 6 in advance, for test is prepared as good; Then, to handle from the signal that speed pickup 9 obtains, and the form of result with curve be presented on outer display 6 display screens in real time, like this, the driver just can be according to the real-time speed curve and the effective velocity zone curve that shows in advance be adjusted, control rate, when quicken, when at the uniform velocity, when slow down, come into plain view, not only improved test efficiency, and the accuracy of test figure is guaranteed also.

Claims

1. a vehicle complete vehicle actual road test testing tool is characterized in that: the velocity test module (2) that comprises a picking rate sensor (9) signal; The fuel consume test module (3) of a collection fuel flow transducer (10) signal; Collection is from the data acquisition module (8) of the speed and the fuel consume data of velocity test module (2) and fuel consume test module (3); One receives and processing speed test module (2) and fuel consume test module (3) signal and be the control module (5) that data acquisition module (8) and outer display (6) provide information; One be connected to data acquisition module (8) and by control module (5) response with finish man-machine conversation realize whole instrumental functions press key control box (7); The outer display (6) of display speed that is connected with control module (5), oil consumption, distance and time data.

2. vehicle complete vehicle actual road test testing tool according to claim 1 is characterized in that: described control module (5) and velocity test module (2), fuel consume test module (3), data acquisition module (8) are plugged on respectively on the bus backplane (4).

3. vehicle complete vehicle actual road test testing tool according to claim 1 is characterized in that: described control module (5) is connected with a printer and communication setting.

4. vehicle complete vehicle actual road test testing tool according to claim 1 is characterized in that: described control module (5) is a kind of built-in industrial level computer based on the PC/104 bus.

5. vehicle complete vehicle actual road test testing tool according to claim 1 is characterized in that: described outer display (6) is a kind of active illuminating formula flat-panel monitor that can show Chinese character, numeral, curve.

6. vehicle complete vehicle actual road test testing tool according to claim 1 is characterized in that: described press key control box (7) is a hand-held control enclosure with four buttons.

7. vehicle complete vehicle actual road test testing tool according to claim 1, it is characterized in that: sensor projects light was to the road surface when described speed pickup (9) was a kind of work, receive the reflected light on road surface simultaneously, the photoelectric sensor of the burst signal that output frequency is directly proportional with vehicle pace size after opto-electronic conversion and tracking filter processing.

8. vehicle complete vehicle actual road test testing tool according to claim 1, it is characterized in that: described fuel flow transducer (10) is a kind of following current and the adverse current that can experience fuel oil, the fuel flow signal of output is that the two-way phase differential is 90 ° a square-wave signal, the turbine type sensor that signal frequency is directly proportional with the fuel flow size.