CN203476493U - Lubricating oil control system for turbocharger - Google Patents
Lubricating oil control system for turbocharger Download PDFInfo
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- CN203476493U CN203476493U CN201320561300.8U CN201320561300U CN203476493U CN 203476493 U CN203476493 U CN 203476493U CN 201320561300 U CN201320561300 U CN 201320561300U CN 203476493 U CN203476493 U CN 203476493U
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- Prior art keywords
- turbosupercharger
- control unit
- electric valve
- chip microcomputer
- lubricating oil
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model discloses a lubricating oil control system for a turbocharger. The lubricating oil control system comprises a control unit, a rotating speed sensor, a pressure sensor and an electrically operated valve, wherein the rotating speed sensor, the pressure sensor and the electrically operated valve are connected with the control unit respectively, the rotating speed sensor is used for collecting rotating speed signals of the turbocharger and transmitting the rotating speed signals to the control unit, the pressure sensor is used for collecting inlet oil pressure signals of a lubricating oil inlet of the turbocharger and transmitting the inlet oil pressure signals to the control unit, and the control unit is used for controlling the opening degree of the electrically operated valve so as to achieve control over inlet oil pressure and inlet oil flow of lubricating oil. The lubricating oil control system has the advantages that the turbocharger is in the most reasonable lubricating oil state under full operation conditions, working performance of the turbocharger can be effectively improved, the lubricating oil leakage risk of the turbocharger reaches the minimum, and reasonable supply of the lubricating oil can prolong service life of the turbocharger greatly.
Description
Technical field
The utility model relates to a kind of oil-feed control technique, especially relates to a kind of lubricant oil control system for turbosupercharger.
Background technique
At present, when turbosupercharger is applied on motor, the supply conditions of the lubricant oil in turbosupercharger (pressure, flow) is only decided by the operating conditions of motor factors such as () rotating speed, loads, turbosupercharger self is the lubricant oil state that passive receive motor provides, and the lubricant oil condition that motor provides is not necessarily all best suited for turbosupercharger self character under all operating modes.Therefore, need to study a kind of can realize by turbosupercharger according to the next lubricant oil control system of reasonably automatically accurately controlling lubricant oil supply conditions of operating mode own for turbosupercharger.
Summary of the invention
Technical problem to be solved in the utility model be to provide a kind of simple in structure, cost is low, and can determine according to the operating mode of turbosupercharger itself the lubricant oil control system of rational lubricant oil input pressure and flow.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of lubricant oil control system for turbosupercharger, it is characterized in that comprising control unit, be installed on the speed probe on the compressor casing of turbosupercharger, be installed on the lube oil inlet pipe of turbosupercharger and near the pressure transducer of lubricant oil filler opening be installed on the electric valve on the lube oil inlet pipe of turbosupercharger, described speed probe, described pressure transducer is connected with described control unit respectively with described electric valve, described speed probe gathers the tach signal of turbosupercharger, and transmit tach signal to described control unit, described pressure transducer gathers the input pressure signal at the lubricating oil filler opening place of turbosupercharger, and transmit input pressure signal to described control unit, the aperture of the electric valve that described control unit control is described realizes the control of lubricant oil input pressure and oil-feed flow.
Described control unit is comprised of A/D modular converter, single-chip microcomputer and D/A modular converter, the output terminal of the output terminal of described speed probe and described pressure transducer is connected with the input end of described A/D modular converter respectively, the output terminal of described A/D modular converter is connected with the input end of described single-chip microcomputer, the output terminal of described single-chip microcomputer is connected with the input end of described D/A modular converter, and the output terminal of described D/A modular converter is connected with described electric valve.
Described single-chip microcomputer adopts Freescale S08SG4 single-chip microcomputer.
Described single-chip microcomputer is connected with power module, and described power module is for being converted to the 12V of motor or 24V voltage signal 5V voltage signal and offering described single-chip microcomputer as power supply voltage.
Compared with prior art, the utility model has the advantage of: by control unit is set, speed probe, pressure transducer and electric valve, utilize speed probe to gather the tach signal of turbosupercharger, and utilize pressure transducer to gather the input pressure signal at the lubricating oil filler opening place of turbosupercharger, then by control unit root pick tach signal and input pressure signal, drawn the most rational lubricant oil oil-feed state of turbosupercharger Instantaneous Phase, and the corresponding aperture of controlling electric valve realizes, this lubricant oil control system make turbosupercharger in full operating conditions always under the most rational lubricant oil state, not only can effectively improve the service behaviour of turbosupercharger, make the oil leakage risk of turbosupercharger reach minimum, and reasonably lubricant oil provides the operating life that can improve widely turbosupercharger.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of lubricant oil control system of the present utility model in turbosupercharger;
Fig. 2 is the composition schematic diagram of the control unit in lubricant oil control system of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
A kind of lubricant oil control system for turbosupercharger that the present embodiment proposes, as shown in Figure 1, it comprises control unit 1, be installed on the speed probe 2 on the compressor casing of turbosupercharger, be installed on the lube oil inlet pipe of turbosupercharger and near the pressure transducer 3 of lubricant oil filler opening be installed on the electric valve 4 on the lube oil inlet pipe of turbosupercharger, pressure transducer 3 is between the lubricant oil filler opening of electric valve 4 and turbosupercharger, speed probe 2, pressure transducer 3 is connected with control unit 1 respectively with electric valve 4, speed probe 2 gathers the tach signal of turbosupercharger, and transmit tach signal to control unit 1, pressure transducer 3 gathers the input pressure signal at the lubricating oil filler opening place of turbosupercharger, and transmit input pressure signal to control unit 1, control unit 1 carries out analytical calculation according to tach signal and input pressure signal, the aperture that draws the aperture of electric valve 4 and control electric valve 4 realizes the control of lubricant oil input pressure and oil-feed flow, can be realized by control unit 1 commander's electric valve 4 variation of input pressure and oil-feed flow.
In the specific implementation, control unit 1 can be installed on the support of compressor casing of turbosupercharger.
In this specific embodiment, as shown in Figure 2, control unit 1 is by A/D modular converter 11, single-chip microcomputer 12, D/A modular converter 13 and power module 14 form, the output terminal of the output terminal of speed probe 2 and pressure transducer 3 is connected with the input end of A/D modular converter 11 respectively, the output terminal of A/D modular converter 11 is connected with the input end of single-chip microcomputer 12, the output terminal of single-chip microcomputer 12 is connected with the input end of D/A modular converter 13, the output terminal of D/A modular converter 13 is connected with electric valve 4, power module 14 connects motor and the single-chip microcomputer 12 of automobile, power module 14 is for being converted to the 12V of motor or 24V voltage signal 5V voltage signal and offering single-chip microcomputer 12 as power supply voltage, single-chip microcomputer 12 can be worked.
At this, single-chip microcomputer 12 adopts Freescale S08SG4 single-chip microcomputer.
The detailed process of utilizing above-mentioned lubricant oil control system to realize lubricant oil control is:
1) single-chip microcomputer in control unit is transferred to the D/A modular converter in control unit by the initial digital signal of the given in advance aperture that represents electric valve; D/A modular converter is converted to analog control signal by the initial digital signal of the aperture that represents electric valve receiving, and then analog control signal is transferred to electric valve, and electric valve is opened according to analog control signal.
At this, the initial digital signal of the given in advance aperture that represents electric valve be electric valve standard-sized sheet aperture 50%, this is because middle opening ratio approaches actual the most frequently used operating mode.
2) tach signal of speed probe Real-time Collection turbosupercharger, using the tach signal of the current turbosupercharger collecting of speed probe as current tach signal, the input pressure signal at the lubricating oil filler opening place of while pressure transducer Real-time Collection turbosupercharger, using the input pressure signal at the lubricating oil filler opening place of the current turbosupercharger collecting of pressure transducer as current input pressure signal.
3) speed probe is transferred to the A/D modular converter in control unit by current tach signal, and pressure transducer is transferred to the A/D modular converter in control unit by current input pressure signal simultaneously.
4) A/D modular converter is converted to the discernible digital signal that represents rotating speed of single-chip microcomputer in control unit by the current tach signal receiving, same A/D modular converter is converted to the discernible digital signal that represents input pressure of single-chip microcomputer in control unit by the current input pressure signal receiving, and by the digital data transmission that represents the digital signal of rotating speed and represent input pressure to the single-chip microcomputer in control unit.
5) single-chip microcomputer is according to the digital signal that represents rotating speed receiving, determine oil-feed target pressure value, then single-chip microcomputer calculates the difference that its digital signal that represents input pressure receiving deducts oil-feed target pressure value, if difference is greater than 0, illustrate that oil-feed actual pressure is higher than its rational oil-feed goal pressure, then perform step 6), if difference is less than 0, illustrate that oil-feed actual pressure is lower than its rational oil-feed goal pressure, then perform step 7), if difference equals 0, keep the aperture of electric valve constant, then perform step 8).
At this, the relation of the digital signal that represents rotating speed that oil-feed target pressure value and single-chip microcomputer receive is to demarcate according to the feature of turbosupercharger itself, the relation that is the digital signal that represents rotating speed that receives with single-chip microcomputer of oil-feed target pressure value is relevant with the model of turbosupercharger, due to the turbosupercharger (vehicle turbocharger) of model from this grade of HP35 to HP65, rev limit can be 180000rpm (rev/min, r/min), therefore such as the turbosupercharger of HP48 model, if the rotating speed of turbosupercharger is 0～40000r/min, oil-feed target pressure value is defined as 200KPa, if the rotating speed of turbosupercharger is 40001～80000r/min, oil-feed target pressure value is defined as 210KPa, if the rotating speed of turbosupercharger is 80001～120000r/min, oil-feed target pressure value is defined as 220KPa, if the rotating speed of turbosupercharger is 120001～160000r/min, oil-feed target pressure value is defined as 230KPa, if the rotating speed of turbosupercharger is greater than 160000r/min, oil-feed target pressure value is defined as 250KPa, but if model is the above large-sized turbo-charging device of HP100 (marine turbosupercharger), its rev limit may just only have 100000rpm, and its oil-feed target pressure value may be just 300Kpa.
6) single-chip microcomputer obtains the current digital signal that represents the aperture of electric valve, then by the digital data transmission of the current aperture that represents electric valve to the D/A modular converter in control unit; D/A modular converter is converted to analog control signal by the digital signal of the aperture that represents electric valve receiving, and then analog control signal is transferred to electric valve, and electric valve is closed according to analog control signal; Perform step again 8); At this, the digital signal that the digital signal of the current aperture that represents electric valve is the last aperture that represents electric valve obtaining reduces the value after 1%, if the digital signal that represents the aperture of electric valve current is the digital signal of the aperture that represents electric valve that obtains for the first time, and the digital signal of the last aperture that represents electric valve obtaining is the initial digital signal that represents the aperture of electric valve.Be that electric valve is closed (after the aperture of electric valve turns down, oil-feed actual pressure can diminish) with the amplitude of 1% aperture.
At this, the situation that the final aperture that cannot occur electric valve is 0%, because after electric valve complete shut-down, oil-feed actual pressure can be 0, certainly be less than target input pressure value, can cause like this not having lubricant oil to be fed to turbosupercharger and damaging turbosupercharger.
7) single-chip microcomputer obtains the current digital signal that represents the aperture of electric valve, then single-chip microcomputer judge the digital signal of the current aperture that represents electric valve whether surpassed electric valve aperture 100%, if surpassed, the aperture that keeps electric valve is 100% constant, then perform step 8), if do not surpassed, single-chip microcomputer by the digital data transmission of the current aperture that represents electric valve to the D/A modular converter in control unit; D/A modular converter is converted to analog control signal by the digital signal of the aperture that represents electric valve receiving, and then analog control signal is transferred to electric valve, and electric valve is opened according to analog control signal; Perform step again 8); At this, the digital signal that the digital signal of the current aperture that represents electric valve is the last aperture that represents electric valve obtaining increases the value after 1%, if the digital signal that represents the aperture of electric valve current is the digital signal of the aperture that represents electric valve that obtains for the first time, and the digital signal of the last aperture that represents electric valve obtaining is the initial digital signal that represents the aperture of electric valve.Be that electric valve is opened (after the aperture of electric valve is opened greatly, it is large that oil-feed actual pressure can become) with the amplitude of 1% aperture.
At this, when occurring that the aperture of electric valve is 100%, and oil-feed actual pressure is while being still less than oil-feed target pressure value, has shown the supply capability deficiency of outer, and now turbocharger lubricating oil control system can only be to keep 100% valve opening.
8) tach signal of turbosupercharger speed probe being collected is next time as current tach signal, the input pressure signal at the lubricating oil filler opening place of the turbosupercharger simultaneously pressure transducer being collected is next time as current input pressure signal, then return to step 3) continue to carry out, according to the tach signal and the input pressure signal that collect next time, realize the control of the aperture of electric valve, until close turbosupercharger.
At this, require when powering on use at first, the aperture of first reset single-chip microcomputer and control electric valve arrives maximum 100% aperture.
Claims (4)
1. the lubricant oil control system for turbosupercharger, it is characterized in that comprising control unit, be installed on the speed probe on the compressor casing of turbosupercharger, be installed on the lube oil inlet pipe of turbosupercharger and near the pressure transducer of lubricant oil filler opening be installed on the electric valve on the lube oil inlet pipe of turbosupercharger, described speed probe, described pressure transducer is connected with described control unit respectively with described electric valve, described speed probe gathers the tach signal of turbosupercharger, and transmit tach signal to described control unit, described pressure transducer gathers the input pressure signal at the lubricating oil filler opening place of turbosupercharger, and transmit input pressure signal to described control unit, the aperture of the electric valve that described control unit control is described realizes the control of lubricant oil input pressure and oil-feed flow.
2. a kind of lubricant oil control system for turbosupercharger according to claim 1, it is characterized in that described control unit is by A/D modular converter, single-chip microcomputer and D/A modular converter form, the output terminal of the output terminal of described speed probe and described pressure transducer is connected with the input end of described A/D modular converter respectively, the output terminal of described A/D modular converter is connected with the input end of described single-chip microcomputer, the output terminal of described single-chip microcomputer is connected with the input end of described D/A modular converter, the output terminal of described D/A modular converter is connected with described electric valve.
3. a kind of lubricant oil control system for turbosupercharger according to claim 2, is characterized in that described single-chip microcomputer adopts Freescale S08SG4 single-chip microcomputer.
4. according to a kind of lubricant oil control system for turbosupercharger described in claim 2 or 3, it is characterized in that described single-chip microcomputer is connected with power module, described power module is for being converted to the 12V of motor or 24V voltage signal 5V voltage signal and offering described single-chip microcomputer as power supply voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320561300.8U CN203476493U (en) | 2013-09-11 | 2013-09-11 | Lubricating oil control system for turbocharger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320561300.8U CN203476493U (en) | 2013-09-11 | 2013-09-11 | Lubricating oil control system for turbocharger |
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| CN203476493U true CN203476493U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320561300.8U Expired - Lifetime CN203476493U (en) | 2013-09-11 | 2013-09-11 | Lubricating oil control system for turbocharger |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437884A (en) * | 2013-09-11 | 2013-12-11 | 宁波威孚天力增压技术有限公司 | Lubricating oil control system and method for turbocharger |
| CN104676229A (en) * | 2015-02-11 | 2015-06-03 | 中钢集团邢台机械轧辊有限公司 | Gas stove trolley |
-
2013
- 2013-09-11 CN CN201320561300.8U patent/CN203476493U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437884A (en) * | 2013-09-11 | 2013-12-11 | 宁波威孚天力增压技术有限公司 | Lubricating oil control system and method for turbocharger |
| CN103437884B (en) * | 2013-09-11 | 2016-03-09 | 宁波威孚天力增压技术有限公司 | A kind of lubricant oil control system for turbosupercharger and method |
| CN104676229A (en) * | 2015-02-11 | 2015-06-03 | 中钢集团邢台机械轧辊有限公司 | Gas stove trolley |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 315034 Zhejiang Province, Ningbo Jiangbei District Cicheng Town Chang Yang Road, No. 268 Patentee after: NINGBO WEIFU TIANLI TURBOCHARGING TECHNOLOGY CO.,LTD. Address before: 315000 Zhejiang Province, Ningbo Jiangbei District Haichuan Road 168 Lane No. 1 Patentee before: NINGBO WEIFU TIANLI TURBOCHARGING TECHNOLOGY Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20140312 |
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| CX01 | Expiry of patent term |