CN102011726B - Durability test system for oil pump and test method of test system - Google Patents
Durability test system for oil pump and test method of test system Download PDFInfo
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- CN102011726B CN102011726B CN2010105795331A CN201010579533A CN102011726B CN 102011726 B CN102011726 B CN 102011726B CN 2010105795331 A CN2010105795331 A CN 2010105795331A CN 201010579533 A CN201010579533 A CN 201010579533A CN 102011726 B CN102011726 B CN 102011726B
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Abstract
The invention discloses a durability test system for an oil pump and a test method of the test system. The durability test system is characterized in that the control end of a master control chip of the durability test system for the oil pump is connected with the grid electrode of a field-effect transistor; the current detection end of the master control chip is connected with the source electrode of the field-effect transistor; the source electrode is connected with a current detection resistor in series and then is earthed, and the drain electrode of the field-effect transistor is connected with an oil pump socket; and the master control chip is provided with a voltage detection end which is earthed via a lower divider resistance and is connected with an oil pump power supply via an upper divider resistance. The system disclosed by the invention has the following effects: the working voltage and working current of the oil pump can be detected within 24hours ceaselessly, the accuracy and reliability are better as compared with artificial detection, and the revolving speed of the oil pump can be controlled as required to adapt to detection requirements under different working states.
Description
Technical field
The invention belongs to a kind of oil pump detection technique, oil pump durable test system and test method thereof that especially a kind of motorcycle is used.
Background technique
The effect of oil pump is that the fuel oil in the fuel tank is sent in the motor, and in whole driving process, oil pump is all in load operation, and thus, be very crucial the working life of oil pump.
Therefore, need before each oil pump installation, all to carry out durable test to it.
But the shortcoming of existing technology is: also do not have a kind of equipment that is exclusively used in the oil pump durable test, the data logging of the durability experiment of traditional oil pump all is to need the tester regularly regularly the operating voltage and the operating current of oil pump to be detected through hand-written record.
Summary of the invention
Problem to be solved by this invention is to provide with a kind of oil pump durable test system and test method thereof, can detect the operating voltage and the operating current of oil pump in 24 hours incessantly, compares its accuracy and better reliability with manual detection.
For achieving the above object; The present invention provides a kind of oil pump durable test system, comprises main control chip, and this main control chip is provided with the display end group; This display end group is connected with LCD display, it is characterized in that said main control chip also is provided with control end, voltage detecting end and current detecting end;
Said control end is connected the grid of field effect transistor;
Said current detecting end is connected the source electrode of field effect transistor, ground connection behind this source electrode serial connection current sense resistor, and the drain electrode of this field effect transistor is connected with the oil pump socket;
Divider resistance ground connection under the said voltage detecting end string, divider resistance connects the oil pump power supply on the voltage detecting end string.
The voltage detecting point of system is arranged between divider resistance and the following divider resistance.
First stitch of said oil pump socket connects said field effect transistor, and second stitch connects said oil pump power supply.
Be provided with first timer, second timer and time regulator in the said main control chip;
Said first timer: be used to control oil pump at a high speed with low speed dutycycle working time;
Said second timer: be used to control oil pump operation and stop time;
Said time regulator: be used to add up oil pump work week issue.
The test method of a kind of oil pump durable test system: so its key is realizing according to the following steps:
The oil pump socket of oil pump durable test system is linked to each other with oil pump, and making the oil pump power supply is the oil pump power supply;
The counter t=0 of main control chip in the initialization oil pump durable test system; The time of first timer and second timer is set; Time for reading record T, main control chip opening timing device interrupts flow process, empties oil pump low speed flag bit, oil pump operation and oil pump and stops flag bit;
Main control chip is pressed the low speed dutycycle and is opened oil pump, and opens said first timer and second timer;
Main control chip judges whether oil pump running mark position equals 1;
If oil pump running mark position is not equal to 1, then returns said main control chip and judge whether oil pump running mark position equals 1 step;
If oil pump running mark position equals 1;
Then main control chip reads current oil pump working current value I and oil pump operational voltage value V, interocclusal record T=T+1 when said, and store current oil pump working current value I, oil pump operational voltage value V and the time interocclusal record T;
Main control chip is closed oil pump;
Main control chip judges that oil pump stops flag bit and whether equals 1;
Be not equal to 1 if oil pump stops flag bit, then return said main control chip and judge that oil pump stops flag bit and whether equals 1 step;
If stopping flag bit, oil pump equals 1;
Main control chip empties oil pump operation and stops flag bit with oil pump, the current oil pump working current value I of control LCD display demonstration, oil pump operational voltage value V and the time interocclusal record T.
Timer interruption flow process is in the said main control chip:
Low level interrupts begins;
Judge whether first timer interrupts,
If first timer interrupts, then get into first timer and interrupt flow process;
Do not interrupt if first timer, then get into second timer and interrupt flow process;
Said first timer interrupts flow process:
Judge whether being provided with in the time in the oil pump operation;
If at being provided with outside the time of oil pump operation, then EOI;
If, judge then whether oil pump low speed flag bit equals 1 being provided with in the time of oil pump operation;
If oil pump low speed flag bit equals 1, then control oil pump and be transformed under the low speed dutycycle and work, and get into counting step;
If oil pump low speed flag bit equals 0, then control oil pump and be transformed under the high speed dutycycle and work, and get into counting step;
Said counting step is t=t+1;
Judge whether the counts of t satisfies the requirement of high low speed conversion times;
If do not satisfy the requirement of number of run, then EOI;
If satisfied the requirement of high low speed number of run, then send the conversion instruction of oil pump low speed flag bit, t=0, EOI;
Said second timer interrupts flow process:
Judge whether the time that is provided with of oil pump operation accomplish;
If the time that is provided with of oil pump operation accomplishes, then make oil pump running mark position equal 1, judge again whether the time that is provided with that oil pump stops to accomplish;
If the time that is provided with of oil pump operation does not accomplish, judge directly then whether the time that is provided with that oil pump stops to accomplish;
If the time that is provided with that oil pump stops not to accomplish, then EOI;
If the time that is provided with that oil pump stops to accomplish, then make oil pump stop flag bit and equal 1, EOI.
Effect of the present invention is: a kind of oil pump durable test system and test method thereof; Can detect the operating voltage and the operating current of oil pump in 24 hours incessantly; Compare with manual detection, its accuracy and better reliability can also be as required; Rotating speed to oil pump is controlled, and adapts to the detection needs of oil pump under the different operating state.
Description of drawings
Fig. 1 is the circuit diagram of oil pump durable test detection system;
Fig. 2 is the testing process figure of oil pump durable test system;
Fig. 3 is that timer interrupts flow chart in the main control chip.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
As shown in Figure 1; A kind of oil pump durable test system comprises main control chip U1, and this main control chip U1 is provided with the display end group; This display end group is connected with LCD display, and said main control chip U1 also is provided with control end RB5, voltage detecting end AN0 and current detecting end AN1;
Said control end RB5 is connected the grid of field effect transistor U2;
The display end group is made up of the first display end LCD1, the second display end LCD2, the 3rd display end LCD3, the 4th display end LCD4, and the said first display end LCD1, the second display end LCD2, the 3rd display end LCD3, the 4th display end LCD4 are connected on the same LCD display.
Said current detecting end AN1 is connected the source electrode of field effect transistor U2, ground connection behind this source electrode serial connection current sense resistor R4, and the drain electrode of this field effect transistor U2 is connected with oil pump socket J1;
Said voltage detecting end AN0 string is divider resistance R3 ground connection down, and divider resistance R2 connects the oil pump power supply on the voltage detecting end AN0 string.
First stitch of said oil pump socket J1 meets said field effect transistor U2, and second stitch connects said oil pump power supply.
Be provided with first timer, second timer and time regulator among the said main control chip U1;
Said first timer: be used to control oil pump at a high speed with low speed dutycycle working time;
Said second timer: be used to control oil pump operation and stop time;
Said time regulator: be used to add up oil pump work week issue.
As shown in Figure 2, the test method of a kind of said oil pump durable test system, realize according to the following steps:
The oil pump socket J1 of oil pump durable test system is linked to each other with oil pump, and making the oil pump power supply is the oil pump power supply; The counter t=0 of main control chip U1 is provided with first timer and second in the initialization oil pump durable test system
The time of timer, time for reading record T, main control chip U1 opening timing device interrupts flow process, empties oil pump low speed flag bit, oil pump operation and oil pump and stops flag bit;
Main control chip U1 presses the low speed dutycycle and opens oil pump, and opens said first timer and second timer;
Main control chip U1 judges whether oil pump running mark position equals 1;
If oil pump running mark position is not equal to 1, then returns said main control chip U1 and judge whether oil pump running mark position equals 1 step;
The time that oil pump operation is provided with is 40 minutes, different time such as also can be provided with 50,60 or 70 minutes as required arbitrarily.
During the oil pump operation 40 minutes, oil pump running mark position equals 0, move end in 40 minutes after, oil pump running mark position equals 1.
If oil pump running mark position is not equal to 1, then returns said main control chip U1 and judge whether oil pump running mark position equals 1 step;
If oil pump running mark position equals 1;
Then main control chip U1 reads current oil pump working current value I and oil pump operational voltage value V, interocclusal record T=T+1 when said, and store current oil pump working current value I, oil pump operational voltage value V and the time interocclusal record T;
T is exactly oil pump operation and record number of times out of service.
Main control chip U1 closes oil pump;
Main control chip U1 judges that oil pump stops flag bit and whether equals 1; Whether the time that is provided with that oil pump stops to accomplish;
The time that is provided with that oil pump stops is 15 seconds, i.e. oil pump burnout time, different time such as also can be provided with 14,16 or 20 seconds as required arbitrarily.
Be not equal to 1 if oil pump stops flag bit, then return said main control chip U1 and judge that oil pump stops flag bit and whether equals 1 step;
Oil pump is flame-out to be that oil pump stops flag bit and equals 0 during 15 seconds, and after flame-out 15 seconds finished, oil pump stopped flag bit and equals 1.
If the second timer flag bit equals 1;
Main control chip U1 empties oil pump operation and stops flag bit with oil pump, the current oil pump working current value I of control LCD display demonstration, oil pump operational voltage value V and the time interocclusal record T.
As shown in Figure 3, timer interruption flow process is among the said main control chip U1:
Low level interrupts begins;
Judge whether first timer interrupts,
If first timer interrupts, then get into first timer and interrupt flow process;
Do not interrupt if first timer, then get into second timer and interrupt flow process;
Said first timer interrupts flow process:
Judge whether being provided with in the time in the oil pump operation;
If at being provided with outside the time of oil pump operation, then EOI;
If being provided with in the time of oil pump operation, judge then whether oil pump low speed flag bit equals 1, judge just whether oil pump also works under the low speed dutycycle;
Main control chip U1 is through the dutycycle of field effect transistor U2 control oil pump work, and it is the oil pump low-speed running that 30% dutycycle can be set, and 80% dutycycle is that oil pump runs up.
During for the oil pump low-speed running, oil pump low speed flag bit equals 1.
When running up for oil pump, oil pump low speed flag bit equals 0.
Can also be as required, the high low speed dutycycle of adjustment oil pump work is as 15%, 20%, 70%, 90% etc.
If oil pump low speed flag bit equals 1, then control oil pump and be transformed under the low speed dutycycle and work, and get into counting step;
If oil pump low speed flag bit equals 0, then control oil pump and be transformed under the high speed dutycycle and work, and get into counting step;
Said counting step is t=t+1;
Judge whether the counts of t satisfies the requirement of high low speed number of run;
If do not satisfy the requirement of high low speed number of run, then EOI;
If satisfied the requirement of high low speed number of run, then send the conversion instruction of oil pump low speed flag bit, t=0, EOI;
Said second timer interrupts flow process:
Judge whether the time that is provided with of oil pump operation accomplish;
If the time that is provided with of oil pump operation accomplishes, then make oil pump running mark position equal 1, judge again whether the time that is provided with that oil pump stops to accomplish;
If the time that is provided with of oil pump operation does not accomplish, judge directly then whether the time that is provided with that oil pump stops to accomplish;
If the time that is provided with that oil pump stops not to accomplish, then EOI;
If the time that is provided with that oil pump stops to accomplish, then make oil pump stop flag bit and equal 1, EOI.
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
As shown in Figure 1; A kind of oil pump durable test system comprises main control chip U1, and this main control chip U1 is provided with the display end group; This display end group is connected with LCD display, and said main control chip U1 also is provided with control end RB5, voltage detecting end AN0 and current detecting end AN1;
Said control end RB5 is connected the grid of field effect transistor U2;
The display end group is made up of the first display end LCD1, the second display end LCD2, the 3rd display end LCD3, the 4th display end LCD4, and the said first display end LCD1, the second display end LCD2, the 3rd display end LCD3, the 4th display end LCD4 are connected on the same LCD display.
Said current detecting end AN1 is connected the source electrode of field effect transistor U2, ground connection behind this source electrode serial connection current sense resistor R4, and the drain electrode of this field effect transistor U2 is connected with oil pump socket J1;
Said voltage detecting end AN0 string is divider resistance R3 ground connection down, and divider resistance R2 connects the oil pump power supply on the voltage detecting end AN0 string.
First stitch of said oil pump socket J1 meets said field effect transistor U2, and second stitch connects said oil pump power supply.
Be provided with first timer, second timer and time regulator among the said main control chip U1;
Said first timer: be used to control oil pump at a high speed with low speed dutycycle working time;
Said second timer: be used to control oil pump operation and stop time;
Said time regulator: be used to add up oil pump work week issue.
As shown in Figure 2, the test method of a kind of said oil pump durable test system, realize according to the following steps:
The oil pump socket J1 of oil pump durable test system is linked to each other with oil pump, and making the oil pump power supply is the oil pump power supply; The counter t=0 of main control chip U1 is provided with first timer and second in the initialization oil pump durable test system
The time of timer, time for reading record T, main control chip U1 opening timing device interrupts flow process, empties oil pump low speed flag bit, oil pump operation and oil pump and stops flag bit;
Main control chip U1 presses the low speed dutycycle and opens oil pump, and opens said first timer and second timer;
Main control chip U1 judges whether oil pump running mark position equals 1;
If oil pump running mark position is not equal to 1, then returns said main control chip U1 and judge whether oil pump running mark position equals 1 step;
The time that oil pump operation is provided with is 40 minutes, different time such as also can be provided with 50,60 or 70 minutes as required arbitrarily.
During the oil pump operation 40 minutes, oil pump running mark position equals 0, move end in 40 minutes after, oil pump running mark position equals 1.
If oil pump running mark position is not equal to 1, then returns said main control chip U1 and judge whether oil pump running mark position equals 1 step;
If oil pump running mark position equals 1;
Then main control chip U1 reads current oil pump working current value I and oil pump operational voltage value V, interocclusal record T=T+1 when said, and store current oil pump working current value I, oil pump operational voltage value V and the time interocclusal record T:
T is exactly oil pump operation and record number of times out of service.
Main control chip U1 closes oil pump;
Main control chip U1 judges that oil pump stops flag bit and whether equals 1; Whether the time that is provided with that oil pump stops to accomplish;
The time that is provided with that oil pump stops is 15 seconds, i.e. oil pump burnout time, different time such as also can be provided with 14,16 or 20 seconds as required arbitrarily.
Be not equal to 1 if oil pump stops flag bit, then return said main control chip U1 and judge that oil pump stops flag bit and whether equals 1 step;
Oil pump is flame-out to be that oil pump stops flag bit and equals 0 during 15 seconds, and after flame-out 15 seconds finished, oil pump stopped flag bit and equals 1.
If the second timer flag bit equals 1;
Main control chip U1 empties oil pump operation and stops flag bit with oil pump, the current oil pump working current value I of control LCD display demonstration, oil pump operational voltage value V and the time interocclusal record T.
As shown in Figure 3, timer interruption flow process is among the said main control chip U1:
Low level interrupts begins;
Judge whether first timer interrupts,
If first timer interrupts, then get into first timer and interrupt flow process;
Do not interrupt if first timer, then get into second timer and interrupt flow process;
Said first timer interrupts flow process:
Judge whether being provided with in the time in the oil pump operation;
If at being provided with outside the time of oil pump operation, then EOI;
If being provided with in the time of oil pump operation, judge then whether oil pump low speed flag bit equals 1, judge just whether oil pump also works under the low speed dutycycle;
Main control chip U1 is through the dutycycle of field effect transistor U2 control oil pump work, and it is the oil pump low-speed running that 30% dutycycle can be set, and 80% dutycycle is that oil pump runs up.
During for the oil pump low-speed running, oil pump low speed flag bit equals 1.
When running up for oil pump, oil pump low speed flag bit equals 0.
Can also be as required, the high low speed dutycycle of adjustment oil pump work is as 15%, 20%, 70%, 90% etc.
If oil pump low speed flag bit equals 1, then control oil pump and be transformed under the low speed dutycycle and work, and get into counting step;
If oil pump low speed flag bit equals 0, then control oil pump and be transformed under the high speed dutycycle and work, and get into counting step;
Said counting step is t=t+1;
Judge whether the counts of t satisfies the requirement of high low speed number of run;
If do not satisfy the requirement of high low speed number of run, then EOI;
If satisfied the requirement of high low speed number of run, then send the conversion instruction of oil pump low speed flag bit, t=0, EOI;
Said second timer interrupts flow process:
Judge whether the time that is provided with of oil pump operation accomplish;
If the time that is provided with of oil pump operation accomplishes, then make oil pump running mark position equal 1, judge again whether the time that is provided with that oil pump stops to accomplish;
If the time that is provided with of oil pump operation does not accomplish, judge directly then whether the time that is provided with that oil pump stops to accomplish;
If the time that is provided with that oil pump stops not to accomplish, then EOI;
If the time that is provided with that oil pump stops to accomplish, then make oil pump stop flag bit and equal 1, EOI.
Claims (4)
1. oil pump durable test system; Comprise main control chip (U1); This main control chip (U1) is provided with the display end group, and this display end group is connected with LCD display, it is characterized in that said main control chip (U1) also is provided with control end (RB5), voltage detecting end (AN0) and current detecting end (AN1);
Said control end (RB5) is connected the grid of field effect transistor (U2);
Said current detecting end (AN1) is connected the source electrode of field effect transistor (U2), this source electrode serial connection current sense resistor (R4) back ground connection, and the drain electrode of this field effect transistor (U2) is connected with oil pump socket (J1);
Said voltage detecting end (AN0) passes through divider resistance (R3) ground connection down, and divider resistance (R2) connects the oil pump power supply on this voltage detecting end (AN0) string.
2. according to the said oil pump durable test of claim 1 system: first stitch of said oil pump socket (J1) connects said field effect transistor (U2), and second stitch connects said oil pump power supply.
3. the test method of the said oil pump durable test of claim 1 system: it is characterized in that realizing according to the following steps:
The oil pump socket (J1) of oil pump durable test system is linked to each other with oil pump, and making the oil pump power supply is the oil pump power supply;
The counter t=0 of main control chip (U1) in the initialization oil pump durable test system; The time of first timer and second timer is set; Time for reading record T, main control chip (U1) opening timing device interrupts flow process, empties oil pump low speed flag bit, oil pump operation and oil pump and stops flag bit;
Main control chip (U1) is pressed the low speed dutycycle and is opened oil pump, and opens first timer and second timer;
Main control chip (U1) judges whether oil pump running mark position equals 1;
If oil pump running mark position is not equal to 1, then returns said main control chip (U1) and judge whether oil pump running mark position equals 1 step;
If oil pump running mark position equals 1;
Then main control chip (U1) reads current oil pump working current value I and oil pump operational voltage value V, interocclusal record T=T+1 when said, and store current oil pump working current value I, oil pump operational voltage value V and the time interocclusal record T;
Main control chip (U1) is closed oil pump;
Main control chip (U1) judges that oil pump stops flag bit and whether equals 1;
Be not equal to 1 if oil pump stops flag bit, then return said main control chip (U1) and judge that oil pump stops flag bit and whether equals 1 step;
If stopping flag bit, oil pump equals 1;
Main control chip (U1) empties oil pump operation and stops flag bit with oil pump, the current oil pump working current value I of control LCD display demonstration, oil pump operational voltage value V and the time interocclusal record T.
4. according to the detecting method of the said oil pump durable test of claim 3 system: timer interrupts flow process and is in the said main control chip (U1):
Low level interrupts begins;
Judge whether first timer interrupts,
If first timer interrupts, then get into first timer and interrupt flow process;
Do not interrupt if first timer, then get into second timer and interrupt flow process;
Said first timer interrupts flow process:
Judge whether being provided with in the time in the oil pump operation;
If at being provided with outside the time of oil pump operation, then EOI;
If, judge then whether oil pump low speed flag bit equals 1 being provided with in the time of oil pump operation;
If oil pump low speed flag bit equals 1, then control oil pump and be transformed under the low speed dutycycle and work, and get into counting step;
If oil pump low speed flag bit equals 0, then control oil pump and be transformed under the high speed dutycycle and work, and get into counting step;
Said counting step is t=t+1;
Judge whether the counts of t satisfies the requirement of high low speed conversion times;
If do not satisfy the requirement of number of run, then EOI;
If satisfied the requirement of high low speed number of run, then send the conversion instruction of oil pump low speed flag bit, t=0, EOI;
Said second timer interrupts flow process:
Judge whether the time that is provided with of oil pump operation accomplish;
If the time that is provided with of oil pump operation accomplishes, then make oil pump running mark position equal 1, judge again whether the time that is provided with that oil pump stops to accomplish;
If the time that is provided with of oil pump operation does not accomplish, judge directly then whether the time that is provided with that oil pump stops to accomplish;
If the time that is provided with that oil pump stops not to accomplish, then EOI;
If the time that is provided with that oil pump stops to accomplish, then make oil pump stop flag bit and equal 1, EOI.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105795331A CN102011726B (en) | 2010-12-08 | 2010-12-08 | Durability test system for oil pump and test method of test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105795331A CN102011726B (en) | 2010-12-08 | 2010-12-08 | Durability test system for oil pump and test method of test system |
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| Publication Number | Publication Date |
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| CN102011726A CN102011726A (en) | 2011-04-13 |
| CN102011726B true CN102011726B (en) | 2012-06-13 |
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| CN2010105795331A Expired - Fee Related CN102011726B (en) | 2010-12-08 | 2010-12-08 | Durability test system for oil pump and test method of test system |
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| CN110374859B (en) * | 2019-07-29 | 2020-09-11 | 山东泰展机电科技股份有限公司 | Device and method for detecting service life of internal circulation air pump |
| CN111692088B (en) * | 2020-05-21 | 2022-03-01 | 钦州绿传科技有限公司 | Diagnosis and control method for preventing electronic oil pump from failing |
| CN112360733A (en) * | 2020-11-17 | 2021-02-12 | 浙江华派发动机有限公司 | Intelligent control system for testing durability of garden machinery running at high and low speeds |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338715A (en) * | 2008-08-05 | 2009-01-07 | 力帆实业(集团)股份有限公司 | Oil pump controller |
| CN101581295A (en) * | 2009-06-22 | 2009-11-18 | 北京航空航天大学 | Airborne hydraulic pump source fault diagnosis system based on DSP |
| CN201884262U (en) * | 2010-12-08 | 2011-06-29 | 力帆实业(集团)股份有限公司 | Oil pump durability test system |
-
2010
- 2010-12-08 CN CN2010105795331A patent/CN102011726B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338715A (en) * | 2008-08-05 | 2009-01-07 | 力帆实业(集团)股份有限公司 | Oil pump controller |
| CN101581295A (en) * | 2009-06-22 | 2009-11-18 | 北京航空航天大学 | Airborne hydraulic pump source fault diagnosis system based on DSP |
| CN201884262U (en) * | 2010-12-08 | 2011-06-29 | 力帆实业(集团)股份有限公司 | Oil pump durability test system |
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| CN102011726A (en) | 2011-04-13 |
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