CN104806410A - Handheld VP37-VP44-common rail pump detector - Google Patents
Handheld VP37-VP44-common rail pump detector Download PDFInfo
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- CN104806410A CN104806410A CN201510260596.3A CN201510260596A CN104806410A CN 104806410 A CN104806410 A CN 104806410A CN 201510260596 A CN201510260596 A CN 201510260596A CN 104806410 A CN104806410 A CN 104806410A
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Abstract
The invention provides a handheld VP37-VP44-common rail pump detector. The handheld VP37-VP44-common rail pump detector is characterized by comprising a VP37 angle acquisition circuit, a VP44 timing signal acquisition circuit, a common rail pump pressure acquisition circuit, a PWM-VP37 pump opening driving circuit, a metering valve driving circuit, a VP44 pump driving circuit, an MCU controller and a power supply circuit, wherein the VP37 angle acquisition circuit, the VP44 timing signal acquisition circuit, the common rail pump pressure acquisition circuit, the PWM-VP37 pump opening driving circuit, the metering valve driving circuit, the VP44 pump driving circuit and the power supply circuit are all connected with the MCU controller; the power supply circuit is further connected with a built-in lithium battery. The handheld VP37-VP44-common rail pump detector provided by the invention is low in cost and easy to maintain, and can test more types of pumps; a VP37 pump, a VP44 pump and a common rail pump can be detected and controlled using the same detector; the detector is intuitive in result and low in cost, works reliably, and has convenience in test and a great influence on a low-cost maintenance market.
Description
Technical field
The present invention relates to detection facility field, be specifically related to a kind of hand-held VP37-VP44-common rail pump detector.
Background technique
Diesel engine after invention over 100 years, the power character superior because of it and Economy and reliable durable, be widely used as power source in communications and transportation and engineering machinery.By the impact of energy crisis and environmental pollution, the fuel consumption and emission of diesel engine is had higher requirement.
Diesel engine oil supply system working condition directly affects exhaust index, because oil supply system working environment is disliked slightly, be in high pressure-temperature situation for a long time, likely cause the damage of the equipment such as oil pump, oil sprayer, common rail pipe, and the situation such as electronic control system (ECU) fault, high-pressure fuel supply system performance state directly affects performance and the safety of motor.
The domestic equipment for detecting oil pump, oil sprayer or common rail pipe is large-scale single test bench at present, can only realize single pump or oil sprayer test, and can only fixedly mount and ABAP Adapter use, and involve great expense, maintenance expenses is high, difficult in maintenance.
If application number is the Chinese utility model patent of 201120566043.8, disclose a kind of two 3D automotive test equipment, image acquisition device and 3-D photography measuring system when it comprises reflecting target, at least two photographic cameras, high-precision reals, described reflecting target comprises the chassis reflecting target of four vehicle body reflecting targets contacted with vehicle body and four and hub contacts, described chassis reflecting target is fixed on described wheel hub, described photographic camera is arranged on the both sides of described 3-D photography measuring system, during described high-precision real, image acquisition device connects described photographic camera and 3-D photography measuring system respectively, two-way interactive data, two 3D automotive test equipments of this model utility are by two high pixel industrial camera camera lenses, under the control of comprehensive detection system, to totally eight continuous snapshots of target on punctuate under automobile chassis and vehicle body, and by clap the real data and vehicle release data analysis that obtain, thus draw vehicle whether safety.This covering device is huge and complicated, is only suitable for being fixedly installed in Auto repair shop using.
As can be seen here, market also there is no a hand-held tester that truly can realize portable inspectiont and control, have to be developed and improve.
Summary of the invention
The object of the invention is to, for defect of the prior art, a kind of hand-held VP37-VP44-common rail pump detector is provided, the portable detector of small handheld is modified into from large-scale monitor station to make the common rail pump detection facility of Diesel high compression engine, contribute to reducing the maintenance difficulty of maintenance man, cost is low and be easy to carry.
For achieving the above object, the present invention is by the following technical solutions:
A kind of hand-held VP37-VP44-common rail pump detector, comprises VP37 angle acquisition circuit, VP44 timing signal Acquisition Circuit, common rail pump pressure acquisition circuit, PWM-VP37 pump aperture drive circuit, metering valve drive circuit, VP44 pump drive circuit, MCU controller and power supply circuits; Described VP37 angle acquisition circuit, VP44 timing signal Acquisition Circuit, common rail pump pressure acquisition circuit, PWM-VP37 pump aperture drive circuit, metering valve drive circuit, VP44 pump drive circuit are connected with MCU controller respectively with power supply circuits, and described power supply circuits also connect a built-in lithium cell.
Further, described power supply circuits are connected to MCU controller by mode of operation input circlult, and power supply circuits are also connected with an external power interface.
Further, the display screen be connected with MCU controller is also comprised.
Further, described display screen is 12864 dot matrix liquid crystal displays.
A kind of hand-held VP37-VP44-common rail pump detector provided by the invention, integrates Detection & Controling, its compact, can hand-heldly use, also can carry with.Compared with similar products, relatively cheap, easy to maintenance, the testable pump kind of cost of the present invention is more, the Detection & Controling of VP37 pump, VP44 pump and common rail pump can be realized on same portion testing instrument, convenient test, visual result, reliable operation, cheap, for low cost market in repair service, there is extreme influence power.
The diesel engine of current high capacity waggon field state three standard estimates that recoverable amount is more than 2,000,000, and corresponding duration of service expires gradually, and traditional detection facility is with high costs, detection means is single, faults frequent, causes maintenance difficulty greatly, costly.The present invention has the features such as with low cost, support model is many, easy to use, testing precision is high, speed is fast, human-computer interaction interface is outstanding, has the extremely wide market space.
The present invention is the Multifunctional hand-held detector integrating detection and control VP37 pump, VP44 pump, common rail pump, achieve the transformation of automotive check instrument to portable equipment of conventional cumbersome, have also been changed people and in the present situation of garage's maintenance, the advance of this invention can only have been fully demonstrated.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, technological scheme of the present invention is described in detail.
As shown in Figure 1, a kind of hand-held VP37-VP44-common rail pump detector that the embodiment of the present invention provides comprises:
VP37 angle acquisition circuit, for the deflection angle signal utilizing LVDT signal emitter to gather VP37 pump;
VP44 timing signal Acquisition Circuit, for the pump position signal utilizing Hall transducer to gather VP44 pump, provides timing benchmark, i.e. the timing stability of VP44 pump;
Common rail pump pressure acquisition circuit, for gathering high voltage common rail pump pressure signal;
PWM-VP37 pump aperture drive circuit, for exporting the pwm signal driving VP37 aperture;
Metering valve drive circuit, for exporting the pwm signal driving metering valve;
VP44 pump drive circuit, for exporting the pwm signal driving VP44 pump;
MCU controller, for the PWM drive singal dutycycle that control PWM-VP37 pump aperture drive circuit, metering valve drive circuit and VP44 pump drive circuit export, and collect the deflection angle of VP37 pump, the timing stability of VP44 pump and common rail pump pressure by VP37 angle acquisition circuit, VP44 timing signal Acquisition Circuit and common rail pump pressure acquisition circuit; In the present embodiment, adopt STC single-chip microcomputer as MCU controller;
Power supply circuits, for battery charging and discharging management and protection, provide the various power supplys needed for testing apparatus; Described power supply circuits connect a built-in lithium cell, also connect an external power interface;
Mode of operation input circlult, for changing the mode of operation of power supply circuits, is switched to built-in lithium battery to power or ABAP Adapter is powered;
Display screen, for carrying out working state display and test result output, in the present embodiment, adopts 12864 dot matrix liquid crystal displays.
Wherein, VP37 angle acquisition circuit, VP44 timing signal Acquisition Circuit, common rail pump pressure acquisition circuit, PWM-VP37 pump aperture drive circuit, metering valve drive circuit, VP44 pump drive circuit are connected with MCU controller respectively with display screen.Described power supply circuits are connected with MCU controller by mode of operation input circlult.
Working procedure of the present invention is as follows, first, VP37 angle acquisition circuit, VP44 timing signal Acquisition Circuit and common rail pump pressure acquisition circuit gather automobile from VP37 angle signal, VP44 pulse signal, the common rail pump pressure signal of belt sensor, send to MCU controller; Through the process of MCU controller, the dutycycle of the PWM pulse-width modulation control signal that control PWM-VP37 pump aperture drive circuit, metering valve drive circuit and VP44 pump drive circuit send, and then the PID Angle ambiguity output signal of control VP37 pump, VP44 pump drive signal and metering valve drive singal; Then by judging timing stability and rotating stability, the metering valve feedback signal quality that confirm common rail pump whether consistent with input signal of VP37 angular deflection, VP44.And pwm signal is directly controlled by MCU, more accurately, more safe and reliable.In use, directly can also control deflection angle, fuel injection quantity, pressure size etc. by the option in display screen, then be controlled to output signal by the process of MCU controller; Whole process operation is simple and clear.
A kind of hand-held VP37-VP44-common rail pump detector provided by the invention, integrates Detection & Controling, its compact, can hand-heldly use, also can carry with.Compared with similar products, relatively cheap, easy to maintenance, the testable pump kind of cost of the present invention is more, the Detection & Controling of VP37 pump, VP44 pump and common rail pump can be realized on same portion testing instrument, convenient test, visual result, reliable operation, cheap, for low cost market in repair service, there is extreme influence power.
The diesel engine of current high capacity waggon field state three standard estimates that recoverable amount is more than 2,000,000, and corresponding duration of service expires gradually, and traditional detection facility is with high costs, detection means is single, faults frequent, causes maintenance difficulty greatly, costly.The present invention has the features such as with low cost, support model is many, easy to use, testing precision is high, speed is fast, human-computer interaction interface is outstanding, has the extremely wide market space.
The present invention is the Multifunctional hand-held detector integrating detection and control VP37 pump, VP44 pump, common rail pump, achieve the transformation of automotive check instrument to portable equipment of conventional cumbersome, have also been changed people and in the present situation of garage's maintenance, the advance of this invention can only have been fully demonstrated.
The above embodiment only have expressed several mode of execution of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (4)
1. a hand-held VP37-VP44-common rail pump detector, it is characterized in that, comprise VP37 angle acquisition circuit, VP44 timing signal Acquisition Circuit, common rail pump pressure acquisition circuit, PWM-VP37 pump aperture drive circuit, metering valve drive circuit, VP44 pump drive circuit, MCU controller and power supply circuits; Described VP37 angle acquisition circuit, VP44 timing signal Acquisition Circuit, common rail pump pressure acquisition circuit, PWM-VP37 pump aperture drive circuit, metering valve drive circuit, VP44 pump drive circuit are connected with MCU controller respectively with power supply circuits, and described power supply circuits also connect a built-in lithium cell.
2. hand-held VP37-VP44-common rail pump detector according to claim 1, it is characterized in that, described power supply circuits are connected to MCU controller by mode of operation input circlult, and power supply circuits are also connected with an external power interface.
3. hand-held VP37-VP44-common rail pump detector according to claim 1, is characterized in that, also comprise the display screen be connected with MCU controller.
4. hand-held VP37-VP44-common rail pump detector according to claim 3, it is characterized in that, described display screen is 12864 dot matrix liquid crystal displays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510260596.3A CN104806410A (en) | 2015-05-19 | 2015-05-19 | Handheld VP37-VP44-common rail pump detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510260596.3A CN104806410A (en) | 2015-05-19 | 2015-05-19 | Handheld VP37-VP44-common rail pump detector |
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| Publication Number | Publication Date |
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| CN104806410A true CN104806410A (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510260596.3A Pending CN104806410A (en) | 2015-05-19 | 2015-05-19 | Handheld VP37-VP44-common rail pump detector |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4418671A (en) * | 1980-12-17 | 1983-12-06 | The Bendix Corporation | Dual solenoid distributor pump |
| CN101050734A (en) * | 2007-01-19 | 2007-10-10 | 清华大学 | High pressure co-rail electric control fuel injection system |
| CN101429913A (en) * | 2008-12-04 | 2009-05-13 | 中国人民解放军沈阳军区大连汽车维修中心 | High pressure co-rail intelligent diagnosis device |
| CN201318236Y (en) * | 2008-12-03 | 2009-09-30 | 中国人民解放军沈阳军区大连汽车维修中心 | Automatic checking diagnostic system of high-pressure common-rail key components |
| CN202851227U (en) * | 2012-09-27 | 2013-04-03 | 北京工业大学 | High-pressure common rail pressure regulating valve characteristic testing device |
| CN103375395A (en) * | 2012-04-19 | 2013-10-30 | 石馀 | Online detecting system for electric fuel pump |
| CN204610116U (en) * | 2015-05-19 | 2015-09-02 | 广州城市职业学院 | A kind of hand-held VP37-VP44-common rail pump detector |
-
2015
- 2015-05-19 CN CN201510260596.3A patent/CN104806410A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4418671A (en) * | 1980-12-17 | 1983-12-06 | The Bendix Corporation | Dual solenoid distributor pump |
| CN101050734A (en) * | 2007-01-19 | 2007-10-10 | 清华大学 | High pressure co-rail electric control fuel injection system |
| CN201318236Y (en) * | 2008-12-03 | 2009-09-30 | 中国人民解放军沈阳军区大连汽车维修中心 | Automatic checking diagnostic system of high-pressure common-rail key components |
| CN101429913A (en) * | 2008-12-04 | 2009-05-13 | 中国人民解放军沈阳军区大连汽车维修中心 | High pressure co-rail intelligent diagnosis device |
| CN103375395A (en) * | 2012-04-19 | 2013-10-30 | 石馀 | Online detecting system for electric fuel pump |
| CN202851227U (en) * | 2012-09-27 | 2013-04-03 | 北京工业大学 | High-pressure common rail pressure regulating valve characteristic testing device |
| CN204610116U (en) * | 2015-05-19 | 2015-09-02 | 广州城市职业学院 | A kind of hand-held VP37-VP44-common rail pump detector |
Non-Patent Citations (1)
| Title |
|---|
| 张建锐: "VP37电控燃油分配泵与CA498ZL柴油机的匹配标定研究", 《中国优秀博硕士学位论文全文数据库（硕士） 工程科技Ⅱ辑》 * |
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