CN101126656A - Oil level sensor anti-corrosion additional device - Google Patents
Oil level sensor anti-corrosion additional device Download PDFInfo
- Publication number
- CN101126656A CN101126656A CNA2007101806689A CN200710180668A CN101126656A CN 101126656 A CN101126656 A CN 101126656A CN A2007101806689 A CNA2007101806689 A CN A2007101806689A CN 200710180668 A CN200710180668 A CN 200710180668A CN 101126656 A CN101126656 A CN 101126656A
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- China
- Prior art keywords
- level sensor
- oil level
- logic switch
- switch module
- detection module
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Level Indicators Using A Float (AREA)
Abstract
The utility model provides an additional corrosion resistant device for oil level sensor, which is an electric control for preventing a slide resistor of an oil level sensor from generating electrochemical erosion. The utility model is connected between an oil level indicator and the oil level sensor, wherein, through the resistance value change of the slip resistance, the oil level sensor transmits the signal of oil level to the electric control unit in the form of voltage or current. The corrosion resistant additional device of the oil level sensor ensures tiny power loss of the slide resistor and outputs variable potential signal to the oil level indicator to indicate the fuel quantity in the oil tank.
Description
Technical field
The present invention relates to the vehicular electrical appliance product, is a kind of fuel level sensor attachment device, and particularly a kind of automobile-used fuel level sensor electrochemically resistant is learned the attachment device of corrosion.
Background technology
Existing automobile-used fuel level sensor is all designed at gasoline, diesel oil non-polar molecule fuel.Aalcohols fuel such as coal-based methanol and bio-ethanol is a kind of liquid engine fuel that can substitute gasoline, but since the characteristic of itself strong molecular polarity be easy to the swept resistance of fuel level sensor is produced electrochemical etching.Theory and practice proves, is immersed in the conductor in the Aalcohols fuel liquid, and its electric work consumption is more little, and the electrochemical etching that is suffered is also more little.So, the mission life and the reliability of fuel level sensor when just needing a kind of oil level sensor anti-corrosion additional device to guarantee to use Aalcohols fuel.
Summary of the invention
The objective of the invention is to design a kind of oil level sensor anti-corrosion additional device that can use liquid alternative fuel such as alcohols safely.
The present invention is achieved in that the electric work loss by reducing on the fuel level sensor swept resistance reaches the purpose that reduces corrosion.Oil level sensor anti-corrosion additional device is connected between oil level indicating gauge and the fuel level sensor, connect to form by power module, detection module, logic switch module and resistor group, power module outlet connects the fuel level sensor positive pole through resistance R, for fuel level sensor provides a voltage signal that can reduce electric work loss on the fuel level sensor swept resistance significantly; Two test sides of detection module connect the fuel level sensor positive and negative electrode respectively, the detection module output terminal connects logic switch module controls end, detection module detects owing to swept resistance changes the change in voltage that causes in real time to fuel level sensor, and testing result is input to the logic switch module; The switch input terminal of logic switch module links to each other with oil level indicating gauge input end, corresponding with the resistor group respectively end of a plurality of output switching terminals of logic switch module connects, the resistor group other end also connects back connection negative pole, the logic switch module is according to the variation of the input signal of detection module, each resistance in the resistor group is connected in the oil level indicating gauge circuit successively, generates variable potential signal and drive the work of oil level indicating gauge.Described detection module and logic switch module can be by forming for the control core circuit with the single-chip microcomputer, also can be by forming for the control core circuit with the programmable logic array.
In oil level sensor anti-corrosion additional device of the present invention, the some individual resistors R in the resistor group
1～R
xSwept resistance value with the different oil levels of representative equates respectively.
According to the present invention,, prolonged its serviceable life greatly even if in liquid level indication mechanisms such as gasoline, diesel oil, liquefied petroleum gas (LPG), can adopt this scheme.
The invention has the beneficial effects as follows: the fuel level sensor that can be set to the fuel level sensor that can only be suitable for Fuel Petroleum can use other liquid alternative fuel such as gasoline, alcohols easily, relatively simple for structure, can be by revising the parameter setting, and then satisfy the fuel level sensor transformation of all vehicles, debug use, maintenance is all more convenient.
Description of drawings
Fig. 1 is the connection diagram of the present invention in the oil level display system.
Fig. 2 is the schematic block circuit diagram of oil level sensor anti-corrosion additional device.
Embodiment
The present invention is further described to engage accompanying drawing below.
Between fuel level sensor 1 that vehicle has originally, oil level indicating gauge 3, install oil level sensor anti-corrosion additional device 2 additional.
Oil level sensor anti-corrosion additional device is connected to form by power module 4, detection module 7, logic switch module 5 and resistor group 6, and described detection module 7 and logic switch module 5 are by forming for the control core circuit with the single-chip microcomputer.Power module 4 output terminal h connect fuel level sensor 1 positive pole through resistance R, for fuel level sensor 1 provides a voltage signal that can reduce electric work loss on fuel level sensor 1 swept resistance significantly; Detection module 7 two test side a, c connect fuel level sensor 1 positive and negative electrode respectively, detection module 7 output terminal b connect logic switch module 5 control end d, 7 pairs of fuel level sensors of detection module 1 detect in real time owing to swept resistance changes the change in voltage that causes, and testing result is input to logic switch module 5; The switch input terminal e of logic switch module 5 links to each other with oil level indicating gauge 3 input end g, and a plurality of output switching terminal f of logic switch module 5 connect with resistor group 6 corresponding ends respectively, and resistor group 6 adopts 13 resistance R
1～R
13, resistance is respectively the increment value of dividing equally between fuel level sensor swept resistance minimum value and the maximal value.Resistor group 6 other ends also connect back connection negative pole, and logic switch module 5 is connected to each resistance in the resistor group 6 in oil level indicating gauge 3 circuit successively according to the variation of the input signal of detection module 7, generate variable potential signal and drive 3 work of oil level indicating gauge.
Claims (2)
1. oil level sensor anti-corrosion additional device, it is characterized in that: oil level sensor anti-corrosion additional device is connected between oil level indicating gauge and the fuel level sensor, connect to form by power module, detection module, logic switch module and resistor group, power module outlet connects the fuel level sensor positive pole through resistance R, for fuel level sensor provides a voltage signal that can reduce electric work loss on the fuel level sensor swept resistance significantly; Two test sides of detection module connect the fuel level sensor positive and negative electrode respectively, the detection module output terminal connects logic switch module controls end, detection module detects owing to swept resistance changes the change in voltage that causes in real time to fuel level sensor, and testing result is input to the logic switch module; The switch input terminal of logic switch module links to each other with oil level indicating gauge input end, corresponding with the resistor group respectively end of a plurality of output switching terminals of logic switch module connects, the resistor group other end also connects back connection negative pole, the logic switch module is according to the variation of the input signal of detection module, each resistance in the resistor group is connected in the oil level indicating gauge circuit successively, generates variable potential signal and drive the work of oil level indicating gauge.
2. oil level sensor anti-corrosion additional device according to claim 1, it is characterized in that: described detection module and logic switch module can be by forming for the control core circuit with the single-chip microcomputer, also can be by forming for the control core circuit with the programmable logic array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101806689A CN100419393C (en) | 2007-10-05 | 2007-10-05 | Oil level sensor anti-corrosion additional device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101806689A CN100419393C (en) | 2007-10-05 | 2007-10-05 | Oil level sensor anti-corrosion additional device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101126656A true CN101126656A (en) | 2008-02-20 |
| CN100419393C CN100419393C (en) | 2008-09-17 |
Family
ID=39094737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101806689A Expired - Fee Related CN100419393C (en) | 2007-10-05 | 2007-10-05 | Oil level sensor anti-corrosion additional device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100419393C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833705A (en) * | 2014-10-27 | 2015-08-12 | 北汽福田汽车股份有限公司 | Automobile, and fuel oil monitoring device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86206336U (en) * | 1986-08-30 | 1987-11-11 | 吴继康 | Electronic fuel gauge |
| CN2197631Y (en) * | 1994-04-02 | 1995-05-17 | 陈志� | Romote controller of water boiler |
-
2007
- 2007-10-05 CN CNB2007101806689A patent/CN100419393C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833705A (en) * | 2014-10-27 | 2015-08-12 | 北汽福田汽车股份有限公司 | Automobile, and fuel oil monitoring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100419393C (en) | 2008-09-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080917 Termination date: 20141005 |
|
| EXPY | Termination of patent right or utility model |