CN205066895U - System for be used for car fuel instrument to proofread - Google Patents
System for be used for car fuel instrument to proofread Download PDFInfo
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- CN205066895U CN205066895U CN201520875331.XU CN201520875331U CN205066895U CN 205066895 U CN205066895 U CN 205066895U CN 201520875331 U CN201520875331 U CN 201520875331U CN 205066895 U CN205066895 U CN 205066895U
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- fuel
- oil
- chip microcomputer
- fuel tank
- pressure measurement
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Abstract
The utility model provides a system for be used for car fuel instrument to proofread, including oil tank, panel board, singlechip, the oil tank has the float -type transmitter, still is equipped with oil filler hole, air vent, oil feed joint and oil return on the oil tank respectively and connects, both ends are equipped with the pressure measurement film piece respectively around the bottom in the oil tank, be equipped with pressure measurement film piece signal transmission in the oil tank outside and connect, pressure measurement film piece signal transmission connect through the data signal wire with the monolithic is electromechanical to be connected, singlechip rethread data signal wire with the panel board electricity is connected, the oil feed connects and to be equipped with the flowmeter, the flowmeter pass through the data signal wire with the monolithic is electromechanical to be connected. The applicable oil tank in arbitrary structure of this critique system, commonality are good, install convenient, the measuring speed is fast, it is accurate reliable to guarantee effectively that the oil mass reads, shows when the instrument and can in time remind the driver to notice when incorrect, avoids causing the potential safety hazard, improvement driving safety.
Description
Technical field
The utility model relates to automobile instrument technical field, particularly relates to a kind of system for proofreading vehicle fuel instrument.
Background technology
The fuel oil instrument that current construction engine is conventional has electromagnetic type fuel instrument, double-metal sheet type fuel oil instrument etc.In its electromagnetic type fuel instrument, the solenoid magnetic field due to pointer both sides interferes with each other impact may cause read untrue; In its double-metal sheet type fuel oil instrument, because the impact being subject to environment temperature and starting front and back fuel oil temperature different may cause read untrue.
In addition, the fuel liquid level sensor in existing fuel tank all uses float-type transmitter, i.e. slide rheostat formula sensor, is produced the change of resistance by the change of height of liquid level, then transfers to fuel oil instrument display fuel liquid level by signal wire.This structure also exists certain defect: one is that the precision of float-type transmitter is lower, and when some liquid level situation of change, change in resistance is not obvious; Two is that between float-type transmitter from different fuel oil instrument, cooperate degree is variant, same level condition there will be difference in various degree because of signal transfer problem, even occur that the actual oil mass of fuel tank internal is finished substantially, but fuel oil instrument still shows the phenomenon of oil mass abundance or satisfied traveling demand, bring erroneous judgement to human pilot to the greatest extent, traffic safety is caused to having a strong impact on.
At present, when abnormal problem appears in automotive oil tank float-type transmitter or the display of fuel oil instrument is inaccurate, the difference to display oil mass and true oil mass cannot check in time and correct by relevant device or method.
Summary of the invention
For guaranteeing the display of oil mass value accurately and reliably, improving travel safety, the utility model proposes a kind of system for proofreading vehicle fuel instrument.
For this reason, the technical solution of the utility model is: a kind of system for the check and correction of vehicle fuel instrument, comprise fuel tank, panel board, single-chip microcomputer, fuel tank is with float-type transmitter, fuel tank is also respectively equipped with oil filler, air hole, fuel inlet fitting and back leakage connection, it is characterized in that: be respectively equipped with membrane for pressure measurement in fuel tank inner bottom part rear and front end, membrane for pressure measurement Signal transmissions joint is provided with in fuel tank outside, membrane for pressure measurement Signal transmissions joint is electrically connected with described single-chip microcomputer by digital signal wire, single-chip microcomputer is electrically connected with described panel board by digital signal wire again, during use, membrane for pressure measurement sends induced signal to single-chip microcomputer according to amount of fuel, the signal received amplifies and carries out filtering conversion by single-chip microcomputer, calculate the weight of fuel oil in fuel tank, and be converted to fuel bulk, then the oil mass value that result of calculation and float-type transmitter are measured is analyzed, if Cha Zhi≤5% of the two, then single-chip microcomputer sends safety instruction to panel board, described fuel inlet fitting is provided with flowmeter, flowmeter is electrically connected with described single-chip microcomputer by digital signal wire, if force value Pian Cha≤5% that fuel tank internal rear and front end membrane for pressure measurement detects, then single-chip microcomputer no longer carries out fuel weight conversion, and adopts the mode of reading flow gauge to carry out oil amount determination.
Principle of work:
During use, membrane for pressure measurement in fuel tank sends induced signal to single-chip microcomputer according to amount of fuel, the signal received amplifies and carries out filtering conversion by single-chip microcomputer, calculate the weight of fuel oil in fuel tank, and be converted to fuel bulk, then the oil mass that result of calculation and float-type transmitter are measured is analyzed; When the comparing result difference more than 5% of the two, single-chip microcomputer can send safety instruction by control program to panel board, as printed words such as " comparatively big error have appearred in instrument oil mass, please notes ", reminds driver to care for appearances display mistake, avoids potential safety hazard occurs.When vehicle travels at level road, the numerical approximation of the membrane for pressure measurement induction of fuel tank internal rear and front end, flowmeter does not participate in monitoring; When vehicle climb and fall, car load center of gravity changes, rocking easily appears in the fuel oil in fuel tank, now, if the force value deviation that the membrane for pressure measurement of fuel tank internal rear and front end detects is more than 5%, single-chip microcomputer no longer carries out fuel weight conversion, and adopts the mode of reading flow gauge to carry out oil amount determination.
Beneficial effect:
The utility model is by arranging membrane for pressure measurement at fuel tank internal, for carrying out perception to the oil mass in fuel tank, and send to single-chip microcomputer to process perceptual signal, finally the oil mass value that result of calculation and the original float-type transmitter of fuel tank are measured is analyzed, thus judges whether instrument display is correct; Flowmeter is set on fuel tank simultaneously, for fuel oil in vehicle climb and fall fuel tank occur the perception of sloshing pressure measuring diaphragm occur comparatively big error time, by reading flow gauge, oil mass in fuel tank is judged, thus ensure the vehicle accuracy that oil mass reads under different road conditions.This critique system is applicable to the fuel tank of arbitrary structures, versatility is good, install convenient, measuring speed is fast, effectively can ensure that oil mass reads accurately and reliably, when instrument display is incorrect, can driver be reminded in time to note, avoid causing potential safety hazard, improve travel safety.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Number in the figure is: 1, fuel tank; 2, panel board; 3, single-chip microcomputer; 4, oil filler; 5, air hole; 6, fuel inlet fitting; 7, back leakage connection; 8, membrane for pressure measurement; 9, membrane for pressure measurement Signal transmissions joint; 10, digital signal wire; 11, flowmeter.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of system for the check and correction of vehicle fuel instrument, comprise fuel tank 1, panel board 2, single-chip microcomputer 3, fuel tank 1, with float-type transmitter, is also respectively equipped with oil filler 4, air hole 5, fuel inlet fitting 6 and back leakage connection 7 in the upper end of fuel tank 1; A membrane for pressure measurement 8 is respectively equipped with in the inner bottom part rear and front end of fuel tank 1, membrane for pressure measurement Signal transmissions joint 9 is provided with in the outside of fuel tank 1, membrane for pressure measurement Signal transmissions joint 9 is electrically connected with described single-chip microcomputer 3 by digital signal wire, single-chip microcomputer 3 is electrically connected with described panel board 2 by digital signal wire 10 again; During use, membrane for pressure measurement sends induced signal to single-chip microcomputer according to amount of fuel, the signal received amplifies and carries out filtering conversion by single-chip microcomputer, calculate the weight of fuel oil in fuel tank, and be converted to fuel bulk, then the oil mass value that result of calculation and float-type transmitter are measured is analyzed, if difference=5% of the two, then single-chip microcomputer sends safety instruction to panel board; Described fuel inlet fitting 6 is provided with a flowmeter 11, flowmeter 11 is electrically connected with described single-chip microcomputer 3 by digital signal wire 10; If force value deviation=5% that fuel tank internal rear and front end membrane for pressure measurement detects, then single-chip microcomputer no longer carries out fuel weight conversion, and adopts the mode of reading flow gauge to carry out oil amount determination.
When this vehicle fuel instrument critique system uses, membrane for pressure measurement in fuel tank sends induced signal to single-chip microcomputer according to amount of fuel, the signal received amplifies and carries out filtering conversion by single-chip microcomputer, calculate the weight of fuel oil in fuel tank, and be converted to fuel bulk, then the oil mass that result of calculation and float-type transmitter are measured is analyzed; When the comparing result difference more than 5% of the two, single-chip microcomputer can send safety instruction by control program to panel board, as printed words such as " comparatively big error have appearred in instrument oil mass, please notes ", reminds driver to care for appearances display mistake, avoids potential safety hazard occurs.When vehicle travels at level road, the numerical approximation of the membrane for pressure measurement induction of fuel tank internal rear and front end, flowmeter does not participate in monitoring; When vehicle climb and fall, car load center of gravity changes, rocking easily appears in the fuel oil in fuel tank, now, if the force value deviation that the membrane for pressure measurement of fuel tank internal rear and front end detects is more than 5%, single-chip microcomputer no longer carries out fuel weight conversion, and adopts the mode of reading flow gauge to carry out oil amount determination.
The utility model is by arranging membrane for pressure measurement at fuel tank internal, for carrying out perception to the oil mass in fuel tank, and send to single-chip microcomputer to process perceptual signal, finally the oil mass value that result of calculation and the original float-type transmitter of fuel tank are measured is analyzed, thus judges whether instrument display is correct; Flowmeter is set on fuel tank simultaneously, for fuel oil in vehicle climb and fall fuel tank occur the perception of sloshing pressure measuring diaphragm occur comparatively big error time, by reading flow gauge, oil mass in fuel tank is judged, thus ensure the vehicle accuracy that oil mass reads under different road conditions.This critique system is applicable to the fuel tank of arbitrary structures, versatility is good, install convenient, measuring speed is fast, effectively can ensure that oil mass reads accurately and reliably, when instrument display is incorrect, can driver be reminded in time to note, avoid causing potential safety hazard, improve travel safety.
The foregoing is only better possible embodiments of the present utility model, and be not used to limit to the scope of the claims of the present utility model, therefore the equivalent transformation that all utilization the utility model description are done, be all in like manner included within scope of the present utility model.
Claims (1)
1. the system for the check and correction of vehicle fuel instrument, comprise fuel tank, panel board, single-chip microcomputer, fuel tank is with float-type transmitter, fuel tank is also respectively equipped with oil filler, air hole, fuel inlet fitting and back leakage connection, it is characterized in that: be respectively equipped with membrane for pressure measurement in fuel tank inner bottom part rear and front end, membrane for pressure measurement Signal transmissions joint is provided with in fuel tank outside, membrane for pressure measurement Signal transmissions joint is electrically connected with described single-chip microcomputer by digital signal wire, single-chip microcomputer is electrically connected with described panel board by digital signal wire again, during use, membrane for pressure measurement sends induced signal to single-chip microcomputer according to amount of fuel, the signal received amplifies and carries out filtering conversion by single-chip microcomputer, calculate the weight of fuel oil in fuel tank, and be converted to fuel bulk, then the oil mass value that result of calculation and float-type transmitter are measured is analyzed, if Cha Zhi≤5% of the two, then single-chip microcomputer sends safety instruction to panel board, described fuel inlet fitting is provided with flowmeter, flowmeter is electrically connected with described single-chip microcomputer by digital signal wire, if force value Pian Cha≤5% that fuel tank internal rear and front end membrane for pressure measurement detects, then single-chip microcomputer no longer carries out fuel weight conversion, and adopts the mode of reading flow gauge to carry out oil amount determination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520875331.XU CN205066895U (en) | 2015-11-05 | 2015-11-05 | System for be used for car fuel instrument to proofread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520875331.XU CN205066895U (en) | 2015-11-05 | 2015-11-05 | System for be used for car fuel instrument to proofread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205066895U true CN205066895U (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520875331.XU Active CN205066895U (en) | 2015-11-05 | 2015-11-05 | System for be used for car fuel instrument to proofread |
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| CN (1) | CN205066895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277260A (en) * | 2015-11-05 | 2016-01-27 | 湖北三环专用汽车有限公司 | System for vehicle fuel meter calibration |
-
2015
- 2015-11-05 CN CN201520875331.XU patent/CN205066895U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277260A (en) * | 2015-11-05 | 2016-01-27 | 湖北三环专用汽车有限公司 | System for vehicle fuel meter calibration |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |