CN102758767A - Oil circuit control system of saddle-shaped diesel oil tank - Google Patents
Oil circuit control system of saddle-shaped diesel oil tank Download PDFInfo
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- CN102758767A CN102758767A CN2012102538109A CN201210253810A CN102758767A CN 102758767 A CN102758767 A CN 102758767A CN 2012102538109 A CN2012102538109 A CN 2012102538109A CN 201210253810 A CN201210253810 A CN 201210253810A CN 102758767 A CN102758767 A CN 102758767A
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Abstract
The invention discloses an oil circuit control system of a saddle-shaped diesel oil tank, which includes an oil quantity detecting module, a voltage module and a control module, wherein the oil quantity detecting module is used for outputting a resistance signal according to the oil quantity, and the resistance signal varies as the oil quantity varies; the voltage module is used for outputting a voltage signal according to the resistance signal; and the control module is used for controlling the oil pump to work or stop according to the voltage signal. The oil circuit control system can ensure that the oil pump works only when the oil quantity is between the preset upper oil level line and lower oil level line, so as not only to reduce the oil consumption and save the energy, but also prolong the service life of the oil pump.
Description
Technical field
The present invention relates to the control technique field, particularly a kind of oil path control system of diesel oil saddle type fuel tank.
Background technique
At present, domestic 4 wheel driven type Motor Vehicle adopts the saddle type fuel tank mostly.Shown in Figure 1 is the structural representation of diesel oil saddle type fuel tank.The saddle type fuel tank has the interconnecting part 33 of a main fuel tank 11, drop tank 22 and major-minor fuel tank usually.When oil mass in the fuel tank was higher than the bottom 44 of major-minor fuel tank interconnecting part 33, diesel oil was connected as a single entity main fuel tank 11, drop tank 22 in the fuel tank; When oil mass in the fuel tank was lower than the bottom 44 of major-minor fuel tank interconnecting part 33, diesel oil was divided into two-part in the fuel tank, laid respectively in main fuel tank 11 and the drop tank 22.In order to guarantee that the oil in the drop tank 22 can get into main fuel tank 11 participation fuel feeding, can fully use to guarantee the oil in the fuel tank.At present, in main fuel tank 11, be provided with usually between 4, two fuel tanks of an oil pump through pipeline realization connection.Behind the vehicle launch, oil pump 4 is started working, and makes the oil of main fuel tank 11 get into drop tank 22 earlier; Produce a Driving force; And then the pipeline 55 through the hydrocone type structural design, the oil in the drop tank 22 are sucked main fuel tank 11, thereby realize continuing, circulating of oil masses in main fuel tank 11 and the drop tank 22.The direction of arrow among the figure is represented the diesel oil flow direction.
Yet the problem that this diesel oil saddle type fuel tank exists is:
Oil pump is worked behind vehicle launch always, not only can increase oil consumption, cause energy waste, also can reduce the working life of oil pump.
Summary of the invention
The invention provides a kind of oil path control system of diesel oil saddle type fuel tank, technological scheme is following:
Comprise oil mass testing module, voltage module and control module; Wherein, the oil mass testing module is used for according to oil mass output resistance signal, and said resistance signal changes with the variation of oil mass; Voltage module is used for according to said resistance signal output voltage signal; Control module is used for according to said voltage signal, control oil pump work or quit work.
Preferably, said oil mass testing module comprises the main fuel-quantity transducer and the secondary fuel-quantity transducer that are connected in series; Wherein, said main fuel-quantity transducer and secondary fuel-quantity transducer all adopt resistive transducer.
Preferably, voltage module comprises voltage source, first resistance, second resistance, the 3rd resistance, first electric capacity, second electric capacity; Wherein, Voltage source is connected with an end of the 3rd resistance, an end of first electric capacity and the output of oil mass testing module with second resistance through first resistance that is connected in parallel; The other end ground connection of first electric capacity; The other end of the 3rd resistance is connected with an end of second electric capacity, the other end ground connection of second electric capacity.
Preferably, control module comprises control voltage source, ECU (Electronic Control Unit, electronic control unit) and relay; Wherein, the contact of relay is serially connected with between control voltage source and the oil pump, oil pump the other end ground connection, and the voltage module output is connected with the coil of said relay through ECU.
Preferably, said oil mass is in preset oiling between bit line and the following oil level line, and said resistance signal is positioned at the predetermined threshold value interval; Said oil mass is higher than the preset bit line or be lower than preset following oil level line of oiling, and said resistance signal is positioned at outside the predetermined threshold value interval.
Preferably, said resistance signal is positioned at the predetermined threshold value interval, said ECU output high level; Said resistance signal is positioned at outside the predetermined threshold value interval, said ECU output low level.
The beneficial effect that technological scheme provided by the invention is brought is:
In an embodiment of the present invention; Control oil pump work or quit work through the cooperation of adopting oil mass testing module, voltage module and control module; Can guarantee that oil pump only works when oiling between bit line and the following oil level line preset in oil mass; Not only oil consumption, energy saving can be reduced, the working life of oil pump can also be improved.
Description of drawings
In order to be illustrated more clearly in the technological scheme in the embodiment of the invention; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other embodiment and accompanying drawing thereof according to these accompanying drawing illustrated embodiments.
Fig. 1 is the cut-away view of diesel oil saddle type fuel tank;
Fig. 2 is the oil path control system circuit diagram that the embodiment of the invention provides;
Fig. 3 is the interval schematic representation of oil pump work oil level that the embodiment of the invention provides;
Fig. 4 is ECU input signal and the output signal diagram that the embodiment of the invention provides;
Fig. 5 is the oil pump "on" position figure that the embodiment of the invention provides.
Embodiment
For making the object of the invention, technological scheme and advantage clearer, will combine the accompanying drawing specific embodiments of the invention to do to describe in detail further below.Obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills resulting all embodiments under the prerequisite of not paying creative work belong to protection scope of the present invention.
Shown in Figure 2, the circuit diagram of the oil path control system that provides for the embodiment of the invention.In order to control the working state of oil pump, the present invention proposes a kind of oil path control system of diesel oil saddle type fuel tank, comprising: oil mass testing module 1, voltage module 2 and control module 3; Wherein, oil mass testing module 1 is used for according to oil mass output resistance signal, and said resistance signal changes with the variation of oil mass; Voltage module 2 is used for according to said resistance signal output voltage signal; Control module 3 is used for according to said voltage signal, control oil pump work or quit work.
Particularly, oil mass testing module 1 at first carries out the detection of fuel tank fuel quantity, and according to the volume information output resistance signal of detected oil mass, when oil mass changed, the resistance signal of output is also corresponding to be changed.
In the present embodiment, oil mass testing module 1 comprises main fuel-quantity transducer R1 and the secondary fuel-quantity transducer R2 that is connected in series; Wherein, main fuel-quantity transducer R1 and secondary fuel-quantity transducer R2 adopt resistive transducer.Wherein, main fuel-quantity transducer R1 is arranged in the main fuel tank, is used to detect the oil mass of main fuel tank, and the corresponding resistance value of output; Secondary fuel-quantity transducer R2 is arranged in the drop tank, is used to detect the oil mass of drop tank, and the corresponding resistance value of output.
In the present embodiment, voltage module 2 comprises voltage source Vcc, first resistance R 3, second resistance R 4, the 3rd resistance R 5, the first capacitor C 1, second capacitor C 2; Wherein, Voltage source Vcc is connected with an end of the 3rd resistance R 5, an end of first capacitor C 1 and the output O1 of oil mass testing module 1 with second resistance R 4 through first resistance R 3 that is connected in parallel; The other end ground connection of first capacitor C 1; The other end of the 3rd resistance R 5 is connected with an end of second capacitor C 2, the other end ground connection of second capacitor C 2.Voltage source Vcc adopts+the 5V voltage source usually; First resistance R 3 and second resistance R 4 of parallel connection also can be substituted by the resistance that a resistance value equates with the shunt resistor value of R3 and R4.First capacitor C 1 and second capacitor C 2 are used for voltage stabilizing, filtering.
In the present embodiment, control module 3 comprises control voltage source V dd, ECU and relay K C; Wherein, the contact of relay K C is serially connected with between control voltage source V dd and the oil pump 4, oil pump 4 the other end ground connection, and the output O2 of voltage module 2 is connected with the coil of relay K C through ECU.Control voltage source V dd adopts 12V voltage usually.
Shown in Figure 3, the interval schematic representation of the oil pump work oil level that provides for the embodiment of the invention.Concrete size according to fuel tank can be provided with oil a bit line A and a following oil level line B in advance, makes oil mass when oiling between bit line A and the following oil level line B, oil pump 4 work; And be higher than when oiling bit line A or being lower than down oil level line B when oil mass, oil pump 4 quits work.Wherein, the bit line A that oils makes that oil mass is concordant with the bottom 44 of major-minor fuel tank interconnecting part 33 behind the vehicle launch, thereby makes the unlikely inflow drop tank 22 of diesel oil of main fuel tank 11 a little more than the bottom 44 of saddle type fuel tank major-minor fuel tank interconnecting part 33.Following oil level line B then is provided with according to the size of oil bit line A and drop tank 22; The feasible oil mass volume that oils between bit line A and the following oil level line B equals the volume of drop tank 22 just; To guarantee that when oil mass was reduced to down oil level line B, the diesel oil in the drop tank 22 was evacuated just.
In the present embodiment, the corresponding relation that is provided with between oil mass and the output resistance is following: when oil mass in preset oiling between bit line A and the following oil level line B, said resistance signal is positioned at the predetermined threshold value interval; When oil mass is higher than the preset bit line A or be lower than preset following oil level line B of oiling, said resistance signal is positioned at outside the predetermined threshold value interval.Wherein, resistance signal is a resistance value, and the predetermined threshold value interval is predefined resistance value scope; Resistance signal is positioned at the predetermined threshold value interval and refers to resistance value in predefined resistance value scope, also promptly more than or equal to the predetermined threshold value lower limit and be less than or equal to the predetermined threshold value upper limit; Resistance signal is positioned at outside the predetermined threshold value interval, refers to that resistance value is greater than the predetermined threshold value upper limit or less than the predetermined threshold value lower limit.In the present embodiment; Through the cooperation of R1 and R2, make oil mass when oiling between bit line A and the following oil level line B, output resistance R1+R2 is positioned at the predetermined threshold value interval; And when oil mass was higher than when oiling bit line A or be lower than down oil level line B, output resistance R1+R2 was positioned at outside the predetermined threshold value interval.
Concrete working procedure is following: R1 is in the process of main fuel tank oil mass by full extremely sky, and the output resistance increases gradually; R2 is in the process of drop tank oil mass by full extremely sky, and the output resistance also increases gradually.
When the saddle type fuel tank was filled diesel oil, R1+R2 output resistance was minimum; Along with the decline of oil mass, R1+R2 increases gradually, but still less than the predetermined threshold value lower limit, oil pump is not worked; When oil mass reaches when oiling bit line A, R1+R2 equals the predetermined threshold value lower limit, and oil pump is started working; Along with oil mass continues to descend, R1+R2 continues to increase, and R1+R2 still is positioned at the predetermined threshold value interval, and oil pump works on; Until reaching oil level line B down, R1+R2 reaches the predetermined threshold value upper limit; Oil mass continues to descend, and R1+R2 continues to increase, and oil mass is lower than oil level line B down, and R1+R2 is greater than the predetermined threshold value upper limit, and oil pump quits work.
Certainly, in other embodiment, also can realize through following concrete working procedure: R1 is in the process of main fuel tank oil mass by full extremely sky, and the output resistance reduces gradually; R2 is in the process of drop tank oil mass by full extremely sky, and the output resistance also reduces gradually.
When the saddle type fuel tank was filled diesel oil, R1+R2 output resistance was maximum; Along with the decline of oil mass, R1+R2 reduces gradually, but still greater than the predetermined threshold value upper limit, oil pump is not worked; When oil mass reaches when oiling bit line A, R1+R2 equals the predetermined threshold value upper limit, and oil pump is started working; Along with oil mass continues to descend, R1+R2 continues to reduce, and R1+R2 still is positioned at the predetermined threshold value interval, and oil pump works on; Until reaching oil level line B down, R1+R2 reaches the predetermined threshold value lower limit; Oil mass continues to descend, and R1+R2 continues to reduce, and oil mass is lower than oil level line B down, and R1+R2 is less than the interval lower limit of predetermined threshold value, and oil pump quits work.
Shown in Figure 4, the ECU input signal and the output signal diagram that provide for the embodiment of the invention.When oil mass was oiling between bit line A and the following oil level line B, ECU exported high level; When oil mass is higher than when oiling bit line A or being lower than down oil level line B the ECU output low level.Wherein, ECU has judging unit and predeterminated voltage interval.Judging unit, it is interval whether the voltage that is used to judge the output O2 position of voltage module 2 is positioned at this predeterminated voltage, if, ECU output high level then; If deny, then the ECU output low level.
Oil pump "on" position figure shown in Figure 5, as to provide for the embodiment of the invention.When oil mass is oiling between bit line A and the following oil level line B, oil pump energising work; When oil mass is higher than when oiling bit line A or being lower than down oil level line B, the oil pump outage quits work.Particularly, when oil mass was oiling between bit line A and the following oil level line B, the resistance signal of output was positioned at the predetermined threshold value interval; The voltage of the output O2 position of voltage module 2 is positioned at ECU predeterminated voltage interval; ECU exports high level, and the coil of relay K C gets electric, the make contact of relay K C; Oil pump 4 is connected with control voltage source V dd, oil pump 4 work; When oil mass is higher than when oiling bit line A or being lower than down oil level line B; The resistance signal of output is positioned at outside the predetermined threshold value interval, and the voltage of the output O2 position of voltage module 2 is positioned at outside the ECU predeterminated voltage interval, the ECU output low level; The coil blackout of relay K C; The contact of relay K C is broken off, and oil pump 4 breaks off with control voltage source V dd, and oil pump 4 quits work.
The all or part of step that one of ordinary skill in the art will appreciate that realization the foregoing description can be accomplished through hardware; Also can instruct relevant hardware to accomplish through program; Program can be stored in a kind of computer-readable recording medium; Program comprises one of step or its combination of method embodiment when carrying out.
In addition, each functional unit in embodiments of the present invention can be integrated in the puocessing module, also can be that the independent physics in each unit exists, and also can be integrated in the module two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, also can adopt the form of software function module to realize.If said integrated module realizes with the form of software function module and during as independently production marketing or use, also can be stored in the computer read/write memory medium.
The above-mentioned storage medium of mentioning can be a ROM (read-only memory), disk or CD etc.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the oil path control system of a diesel oil saddle type fuel tank is characterized in that, comprising:
Oil mass testing module, voltage module and control module;
Wherein, the oil mass testing module is used for according to oil mass output resistance signal, and said resistance signal changes with the variation of oil mass;
Voltage module is used for according to said resistance signal output voltage signal;
Control module is used for according to said voltage signal, control oil pump work or quit work.
2. the oil path control system of diesel oil saddle type fuel tank according to claim 1 is characterized in that:
Said oil mass testing module comprises the main fuel-quantity transducer and the secondary fuel-quantity transducer that are connected in series; Wherein, said main fuel-quantity transducer and secondary fuel-quantity transducer all adopt resistive transducer.
3. the oil path control system of diesel oil saddle type fuel tank according to claim 1 is characterized in that:
Said voltage module comprises voltage source, first resistance, second resistance, the 3rd resistance, first electric capacity, second electric capacity;
Wherein, Voltage source is connected with an end of the 3rd resistance, an end of first electric capacity and the output of oil mass testing module with second resistance through first resistance that is connected in parallel; The other end ground connection of first electric capacity; The other end of the 3rd resistance is connected with an end of second electric capacity, the other end ground connection of second electric capacity.
4. according to the oil path control system of each described diesel oil saddle type fuel tank of claim 1-3, it is characterized in that:
Said control module comprises control voltage source, electronic control unit and relay;
Wherein, the contact of relay is serially connected with between control voltage source and the oil pump, oil pump the other end ground connection, and the voltage module output is connected with the coil of said relay through electronic control unit.
5. the oil path control system of diesel oil saddle type fuel tank according to claim 4 is characterized in that:
Said oil mass is in preset oiling between bit line and the following oil level line, and said resistance signal is positioned at the predetermined threshold value interval;
Said oil mass is higher than the preset bit line or be lower than preset following oil level line of oiling, and said resistance signal is positioned at outside the predetermined threshold value interval.
6. the oil path control system of diesel oil saddle type fuel tank according to claim 5 is characterized in that:
Said resistance signal is positioned at the predetermined threshold value interval, said electronic control unit output high level;
Said resistance signal is positioned at outside the predetermined threshold value interval, said electronic control unit output low level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012102538109A CN102758767A (en) | 2012-07-20 | 2012-07-20 | Oil circuit control system of saddle-shaped diesel oil tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102538109A CN102758767A (en) | 2012-07-20 | 2012-07-20 | Oil circuit control system of saddle-shaped diesel oil tank |
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| CN102758767A true CN102758767A (en) | 2012-10-31 |
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| CN2012102538109A Pending CN102758767A (en) | 2012-07-20 | 2012-07-20 | Oil circuit control system of saddle-shaped diesel oil tank |
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| CN102338655A (en) * | 2010-07-22 | 2012-02-01 | 联合汽车电子有限公司 | Vehicle oil level sensor and implementation method thereof |
| CN102357836A (en) * | 2011-09-30 | 2012-02-22 | 崔伶玲 | Single chip controlled automatic oiling device for machine tool |
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2012
- 2012-07-20 CN CN2012102538109A patent/CN102758767A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101128666A (en) * | 2005-02-23 | 2008-02-20 | 西门子威迪欧汽车电子股份公司 | Fuel-supply unit for a motor vehicle |
| DE102005022160A1 (en) * | 2005-05-13 | 2006-11-16 | Daimlerchrysler Ag | Oil pump for oil circuit of engine has pressure in pressure channel fed to flow control unit upstream of consumer as control variable, and oil cooler is installed in pressure channel |
| FR2927358A1 (en) * | 2008-02-13 | 2009-08-14 | Peugeot Citroen Automobiles Sa | LUBRICATION CIRCUIT. |
| CN101255835A (en) * | 2008-04-08 | 2008-09-03 | 胡全中 | Intelligent controller for gasoline engine fuel injection pump |
| CN201407156Y (en) * | 2009-04-29 | 2010-02-17 | 扬州柳工建设机械有限公司 | Hydraulic system oil starvation protecting mechanism of concrete delivery pump |
| CN102338655A (en) * | 2010-07-22 | 2012-02-01 | 联合汽车电子有限公司 | Vehicle oil level sensor and implementation method thereof |
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Application publication date: 20121031 |