CN206002179U - Automobile instrument artifical resistance inputs simulating test device - Google Patents
Automobile instrument artifical resistance inputs simulating test device Download PDFInfo
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- CN206002179U CN206002179U CN201621018558.3U CN201621018558U CN206002179U CN 206002179 U CN206002179 U CN 206002179U CN 201621018558 U CN201621018558 U CN 201621018558U CN 206002179 U CN206002179 U CN 206002179U
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Abstract
The utility model discloses a kind of automobile instrument artifical resistance inputs simulating test device, including tested automobile instrument, resistor control box, computer, resistor control box includes several resistance being sequentially connected in series, several relays corresponding with resistance respectively and being in parallel with corresponding electronics, and the resistance value of several resistance is followed successively by 2n, wherein n is 09, and n is unique, by adhesive and/or the disconnection of the corresponding relay of computer controls resistor control box, is simulated test thus can achieve to the fluctuation of automobile instrument fuel oil resistance signal.
Description
Technical field
This utility model belongs to automobile instrument fuel oil measuring technology, specifically related to a kind of automobile instrument artifical resistance inputs mould
Intend test device and method.
Background technology
The input of automobile instrument fuel oil is resistance simulation signal, and the float in automotive oil tank is connected with slide rheostat.It is subject to
The impact that oil level constantly moves up and down, float moves up and down drive slide rheostat and constantly moves.Obviously it is input to automobile instrument
Resistance signal forever be fluctuation.Existing using rheostatic method of testing manually although method is simple, easy to get started, but
This fluctuation status of real vehicle cannot be simulated, cause the not comprehensive of test.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of automobile instrument artifical resistance input simulation test dress
Put, can on accurate simulation real vehicle fuel oil resistance signal fluctuation status.
In order to solve above-mentioned technical problem, this utility model adopts the following technical scheme that：
A kind of automobile instrument artifical resistance inputs simulating test device, including:
Tested automobile instrument, has fuel oil input；
Resistor control box, is connected with the fuel oil input of tested automobile instrument, the resistance that is sequentially connected in series including several,
Several relays corresponding with resistance respectively and being in parallel with corresponding electronics, the resistance value of several resistance is followed successively by
2n, wherein n is 0-9, and n is unique；
Computer, is connected with resistor control box, the adhesive of corresponding relay of control resistor control box and/or disconnected
Open, so that test is simulated to the fluctuation of automobile instrument fuel oil resistance signal.
Described resistor control box also includes a pair of potentiometer, is connected on the two ends of serial resistor, and connects tested vapour respectively
The fuel oil input of car instrument and ground.
Described computer has control port, is connected with resistor control box by control port.
Described control port is printer LPT parallel port or the multifunctional data acquisition card of computer.
Described resistor control box also includes driving drive circuit, drive circuit and the control port phase of relay work
Even.
Following advantage is had using automobile instrument artifical resistance of the present utility model input simulating test device：
1. the accurate control of vehicle fuel resistance value input；
2. the quick control of vehicle fuel resistance value input is it is contemplated that the high speed of Computing, the suction of relay itself
Sum velocity has become unique restriction, but also can reach the control speed of 50-60ms；
3. the fuel oil resistance data that can collect during being travelled according to real vehicle, applies this scheme to be simulated, makes platform
Frame test also can reach the effect of real vehicle, improves coverage rate and the really degree of test, reduce risk.
4. the attention rate more and more higher to quality with client, by using this utility model technology, automobile instrument fuel oil
The automaticity of table test can improve, even if not having engineering test car, supplier also can simulate in real vehicle in engine bench test
Fuel oil wave motion input, more deep test is done to automobile fuel gauge, improves test coverage, reduce potential customers'
Complaint.
Brief description
This utility model is described in detail with reference to the accompanying drawings and detailed description：
Fig. 1 is the theory diagram of test device of the present utility model.
Fig. 2 is the circuit theory schematic diagram of resistor control box of the present utility model.
Specific embodiment
Automobile instrument artifical resistance input simulating test device of the present utility model is as shown in figure 1, it mainly includes：
Tested automobile instrument, has fuel oil input.
Resistor control box, is connected with the fuel oil input of tested automobile instrument, specifically as shown in Fig. 2 including several
Resistance R1～the R10 being sequentially connected in series, several relays FUEL_ corresponding with resistance respectively and being in parallel with corresponding electronics
1～FUEL_512, the resistance value of several resistance is followed successively by 2n, wherein n is 0-9, and n is unique.Each electricity shown in Fig. 2
The resistance value of resistance is 2 n power and n is unique, thus its resistance value be respectively 1 ohm, 2 ohm, 4 ohm, 8 ohm, 16 ohm, 32
Ohm, 64 ohm, 128 ohm, 256 ohm and 512 ohm (these resistance disclosure satisfy that the needs of automobile instrument test).Due to
Each resistance value corresponds to a relay, and when this relay adhesive, this resistance value is just skipped on whole serial resistor, and
When this relay disconnects, this resistance value will be calculated on serial resistor.The resistance value inputting for any one, can
Obtained by resistance value combination on whole figure for the serial.Described resistor control box also includes a pair of potentiometer VR1, VR2,
It is connected on the two ends of serial resistor, and connect fuel oil input and the ground of tested automobile instrument respectively.
Computer, is connected with resistor control box, the adhesive of corresponding relay of control resistor control box and/or disconnected
Open, so that test is simulated to the fluctuation of automobile instrument fuel oil resistance signal.
Described computer has control port, is connected with resistor control box by control port, in order to accept computer
The order of control program, to control corresponding relay closure or to disconnect, can adopt the special multifunctional data acquisition card of NI,
The printer LPT parallel port of computer may also be employed.
Driving force in view of control port is not enough, and described resistor control box also includes driving the drive of relay work
Galvanic electricity road, drive circuit is connected with control port.
Above-mentioned automobile instrument artifical resistance inputs the method for testing of simulating test device, can adopt following steps：
A. resistor control box is connected with the fuel oil input of tested automobile instrument；
B. it is connected with resistor control box using computer, according to different test expectation resistance values come to resistor control
The adhesive of corresponding relay of box and/or disconnection are controlled, and make serial resistor value and the test expectation electricity of resistor control box
Resistance is identical, to be simulated test to the fluctuation of automobile instrument fuel oil resistance signal.
Wherein, described test expectation resistance value is according to the fuel oil resistance data collecting during real vehicle traveling.And institute
State test expectation resistance value Non-follow control can be adopted defeated or be controlled in the form of script.Under optimum state, can pass through
Script controlling resistance value simulates the wave motion input of fuel oil resistance under whole vehicle state completely.
In addition, computer does not limit in order to the programming language of the adhesive of control relay and/or the control program of disconnection, can adopt
With C, C++, VB or C# etc..
It is below the source code of control program one embodiment：
Wherein, SigVals is [512,256,128,64,32,16,8,4,2,1], to name its correspondence with resistance value here
Relay, facilitate computing；
E1 represents each element in SigVals；
V1 represents desired resistance value；
El.ResOn represents resistance corresponding relay adhesive；
El.ResOff represents the corresponding relay of resistance and disconnects；
System.SetSignal (El.SignalName, CurOn) represents control, adhesive or the shutoff to relay.
This sentences 57 ohm and illustrates for expected value：
V1=57 ohm<512 ohm, 512 ohm of corresponding relay closures, V1=57 ohm；
V1=57 ohm<256 ohm, 256 ohm of corresponding relay closures, V1=57 ohm；
V1=57 ohm<128 ohm, 128 ohm of corresponding relay closures, V1=57 ohm；
V1=57 ohm<64 ohm, 64 ohm of corresponding relay closures, V1=57 ohm；
V1=57 ohm>=32 ohm, 32 ohm of corresponding relays disconnect, V1=25 ohm；
V1=25 ohm>=16 ohm, 16 ohm of corresponding relays disconnect, V1=9 ohm；
V1=9 ohm>=8 ohm, 8 ohm of corresponding relays disconnect, V1=1 ohm；
V1=1 ohm<4 ohm, 4 ohm of corresponding relay closures, V1=1 ohm；
V1=1 ohm<2 ohm, 2 ohm of corresponding relay closures, V1=1 ohm；
V1=1 ohm>=1 ohm, 1 ohm of corresponding relay disconnects, V1=0 ohm；
In sum, simulating test device and method are inputted using automobile instrument artifical resistance of the present utility model, can
The fluctuation status of fuel oil resistance signal on accurate simulation real vehicle, can improve the automaticity of automobile instrument fuel gauge test, that is,
Make there is no engineering test car, supplier also can simulate the fuel oil wave motion input in real vehicle in engine bench test, to automobile fuel gauge
Do more deep test, improve test coverage, reduce the complaint of potential customers.
But, those of ordinary skill in the art is it should be appreciated that above embodiment is intended merely to explanation originally
Utility model, and be not used as being to restriction of the present utility model, as long as in spirit of the present utility model, to
The change of upper described embodiment, modification all will fall in Claims scope of the present utility model.
Claims (5)
1. a kind of automobile instrument artifical resistance input simulating test device is it is characterised in that include:
Tested automobile instrument, has fuel oil input；
Resistor control box, is connected with the fuel oil input of tested automobile instrument, the resistance that is sequentially connected in series including several, respectively
Several relays corresponding with resistance and being in parallel with corresponding electronics, the resistance value of several resistance is followed successively by 2n, its
Middle n is 0-9, and n is unique；
Computer, is connected with resistor control box, the adhesive of corresponding relay of control resistor control box and/or disconnection,
So that test is simulated to the fluctuation of automobile instrument fuel oil resistance signal.
2. automobile instrument artifical resistance according to claim 1 input simulating test device it is characterised in that：Described resistance
Device control box also includes a pair of potentiometer, is connected on the two ends of serial resistor, and connects the fuel oil input of tested automobile instrument respectively
End and ground.
3. automobile instrument artifical resistance according to claim 1 input simulating test device it is characterised in that：Described calculating
Machine has control port, is connected with resistor control box by control port.
4. automobile instrument artifical resistance according to claim 3 input simulating test device it is characterised in that：Described control
Port is printer LPT parallel port or the multifunctional data acquisition card of computer.
5. according to claim 3 or 4 automobile instrument artifical resistance input simulating test device it is characterised in that：Described
Resistor control box also includes driving the drive circuit of relay work, and drive circuit is connected with control port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621018558.3U CN206002179U (en) | 2016-08-31 | 2016-08-31 | Automobile instrument artifical resistance inputs simulating test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621018558.3U CN206002179U (en) | 2016-08-31 | 2016-08-31 | Automobile instrument artifical resistance inputs simulating test device |
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| CN206002179U true CN206002179U (en) | 2017-03-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219399A (en) * | 2017-05-26 | 2017-09-29 | 武汉保华显示科技有限公司 | A kind of vehicle fuel resistance signal imitation devices and methods therefor |
| CN108917889A (en) * | 2018-07-26 | 2018-11-30 | 安徽江淮汽车集团股份有限公司 | A kind of fuel gauge test macro and method |
| CN109738721A (en) * | 2018-12-29 | 2019-05-10 | 南京富士通南大软件技术有限公司 | A kind of resistance signal simulator and method and product test simulation system |
-
2016
- 2016-08-31 CN CN201621018558.3U patent/CN206002179U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219399A (en) * | 2017-05-26 | 2017-09-29 | 武汉保华显示科技有限公司 | A kind of vehicle fuel resistance signal imitation devices and methods therefor |
| CN108917889A (en) * | 2018-07-26 | 2018-11-30 | 安徽江淮汽车集团股份有限公司 | A kind of fuel gauge test macro and method |
| CN109738721A (en) * | 2018-12-29 | 2019-05-10 | 南京富士通南大软件技术有限公司 | A kind of resistance signal simulator and method and product test simulation system |
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