WO2009121134A1 - Engine electrical pulse and voltage probe - Google Patents
Engine electrical pulse and voltage probe Download PDFInfo
- Publication number
- WO2009121134A1 WO2009121134A1 PCT/AU2009/000397 AU2009000397W WO2009121134A1 WO 2009121134 A1 WO2009121134 A1 WO 2009121134A1 AU 2009000397 W AU2009000397 W AU 2009000397W WO 2009121134 A1 WO2009121134 A1 WO 2009121134A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- probe
- diagnostic apparatus
- positive
- engine
- negative
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/042—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12
Definitions
- This invention relates a diagnostic apparatus for the simultaneous analysis of both positive/negative voltages and/or positive or negative electrical pulses within an engine and related engine management system of a vehicle.
- this invention relates to a portable and convenient diagnostic apparatus which can be used to check for voltages and electrical pulses around an engine or vehicle at large, without any disruption to the running of the engine during the diagnostic analysis.
- a traditional engine diagnostic apparatus is the use of a "noid light".
- the conventional noid light detection system includes a voltage detector, such as a light bulb or the like, which is connected to the electrical fuel injection control unit.
- one of the fuel injectors needs to be disconnected from the engine so that its electrical voltage supply and/or electrical pulses are connected to the noid light.
- the noid light as a diagnostic apparatus to locate or isolate an electrical pulse within the engine management system, means that one has had to disconnect an injector plug so that its electrical contact can supply a signal to a light bulb so that analysis can take place, once the engine becomes operable, hence the engine undergoing testing will in fact not be operating under driving conditions.
- the noid light detection system includes a voltage detector such as a light bulb or the like, which connects itself to the electronic fuel injection control unit by disengaging at least one injector plug, when voltage is supplied to the noid light the noid light will flash intermittently or glow enabling the user to conclude that the system is operating properly.
- this invention provides for not a diagnostic apparatus for the detection of a fault but in fact a means in which to overcome or control fuel and mixture ratios for ignition.
- This kind of automotive diagnostic apparatus not only completes an analysis of the engine control in a management system but also in fact becomes a part of the engine arrangement.
- the unit physically becomes a part of the engine operating condition, and as it is inline and operates with the engine it provides a means to manually control the fuel injector opening times for the increase and/or decrease of fuel levels or . in an automatic manner by allowing the automotive diagnostic fuel controlling machine to make the adjustments in accordance with particular sensor readings which are provided for in the circuitry of the main control unit of the apparatus for the fuel and air mixture.
- the ability of the diagnostic apparatus to function by having to disengage part of the fuel injection system or other parts of the engine management.system, as introduced several times above, has a down side in that once you disengage part of the engine the engine no longer functions or drives as it would under normal driving conditions.
- United Kingdom patent GB2328714 is an advanced piece of automotive diagnostic instrumentation which as described is designed to change the injector pulse times or increase or decrease the amount of fuel to the engine, and to bypass the need for an oxygen sensor while one is testing engine operation or trying to isolate a fault or the like inside the engine.
- an oxygen sensor is required to send a signal to the engine control unit or management system to make sure that the ratio of air and fuel remains at set levels so the correct mixture of air and fuel during the intake and combustion stages during the relevant strokes of the engine are maintained.
- diagnostic apparatus for the simultaneous analysis of both positive and negative voltages as well as electrical pulses within an engine management system, said diagnostic apparatus including;
- a main housing box to which therein is an enclosed electronic circuitry which two or more individual indicator lights communicate from and are externally viewable by a user from said housing box,
- circuitry connected to positive and negative terminals of a power supply
- said electronic circuitry also connect to a first probe and a second probe
- the first probe is placed upon one of the exposed wires of the injector plug thereby illuminating one of the indicator lights from the circuitry of the main housing box
- the circuitry of the main housing provides that one indicator light intermittently illuminates indicating a pulsating pulse whereas a continuous illumination representation of the other light confirms a constant voltage from the engine under analysis.
- the first probe is a positive probe of which is in communication with the indicator light to be illuminated continuously and the second probe is a negative probe in communication with the indicator light to be illuminated intermittently.
- the presence of a continuously illuminated indicator light provides an analysis showing that a positive voltage is present.
- the continuously illuminated indicator light is red.
- the presence of the intermittent or pulsating indicator light represents the presence of a negative electrical pulse.
- the first probe is a positive proba of which is in communication with the indicator light to be illuminated intermittently and the second probe is a negative probe in -communication with the indicator light to be illuminated continuously.
- the presence of the intermittently illuminated light provides an analysis showing that a positive pulse is present.
- the presence of a continuous illuminated indicator light represents the presence of a negative voltage.
- An advantage of such an arrangement is that the first time a simple portable diagnostic apparatus has been provided for but need not interrupt the operating driving conditions of the engine.
- the portable diagnostic apparatus described in the invention is not required to be "inline or in series" with the engine management system as is the case with both the ⁇ oid light and the diagnostic apparatus provided for under UK patent application ⁇ B2328714.
- the portable diagnostic apparatus of this invention is not an engine management system per se, it is a simple and easy to use instrument which can advantageously simultaneously analyse both positive and negative voltages as well as electrical pulses.
- the pulsating light can correspond to the electrical pulses absent, present or interrupted whereas the other light of the apparatus can then provide information as to whether or not the engine management system has in place a continuous positive as required.
- the portable diagnostjc apparatus instrumentation does not interrupt the engine but most importantly it can now conveniently form multiple functions not just simply, as in the case of the noid light, flash when all voltages are present, but use both the continuous illumination of one light as well as the pulsating light of the other to provide multifunctional characteristics.
- the portable diagnostic apparatus can now provide improved fault finding analysis in automotive fuel injection testing.
- Such an apparatus can now replace the existing noid light system as it has superior efficiency, function, usability and features as introduced above not least that it does not in fact itself disengage part of the engine, but at the same time it can also simultaneously test and identify the presence of both positive/negative pulses as well as electrical pulses simultaneously.
- the apparatus will not require a user to unplug anything or disengage any parts of the engine in order for analysis to take place.
- all that will need to be done will be the simple removal of the rubber boot from the back of the injector plug in order to expose the two wires to which the negative and positive probes will conveniently be touched up against.
- the housing unit includes two independent cases with their own electronic circuitry each having wiring at one end connecting to a probe as well as a separate lead of wiring adapted to engage a negative or positive pole of a power supply respectively.
- a light will flash for the presence of a negative pulse and the light on the adjacent housing unit will turn on and operate or glow continuously representing the presence of a constant positive.
- the user of the apparatus can conveniently see the negative poles and the constant positive. If the negative is not pulsing the user will then be aware that there is a break in particular wiring in the engine or as part of the engine management system has some type of fault. If there is no constant positive, then it would be expected that there might be some type of break in the wiring harness.
- the diagnostic apparatus has two probes, a red positive probe of which is in communication with a red light to be illuminated and a black negative probe in communication with a green light to be illuminated in the relevant housing unit.
- the presence of an intermittent or pulsating green light represents the presence of a negative voltage and/or an electrical pulse.
- the user when there is a fault inside the engine or engine management system the user will notice that only one of the lights will illuminate, the light which is not illuminating indicates that such an expected operating condition is faulty.
- the power supply for the negative and positive poles is provided by a twelve volt motor vehicle battery.
- each housing unit includes an electrical control circuitry which also includes its own power supply source, preferably a battery such that the unit can act as a voltage probe and/or continuity tester.
- the housing unit includes an additional light and circuitry in order to illuminate when tested to determine the presence or absence of reference voltages within a specific range for that part of the engine, engine management system or vehicle under test.
- the positive and negative leads to the power supply are in fact incorporated into the housing of a twelve volt cigarette light adapter of which can then be used inside the vehicle to which an engine is currently being tested,
- the electrical circuitry has the power positive and negative connections to the power supply being respective clamps adapted to connect to the negative and positive poles in an automobile battery.
- Figure 1 is perspective view of one preferred embodiment of this invention showing a single housing with the respective positive and negative probes as well as the positive and negative clamps to the power supply being presented.
- Figure 2 is a further preferred embodiment of the invention where in fact the main housing of Figure 1 is simply divided Into two independent sections with one section including the positive probe as well as the negative clamp to the power supply wherein the other independent housing arrangement includes the negative probe and the positive clamp to the positive terminal of the power supply. '
- Figure 3 shows a systematic representation of the use of the portable diagnostic apparatus on the engine and supporting engine, management system for the simultaneous analysis of both the positive and negative voltages as well as the presence of any electrical pulses within the engine and the related engine management system.
- Figure 4 simply shows a representation of the application of the portable diagnostic apparatus which can show that faults can even be detected by the user when driving in their vehicle with the engine operating under normal driving conditions.
- Figure 5 shows a further preferred embodiment of the invention wherein additional circuitry is provided for which will allow the portable diagnostic apparatus to also act as a continuity and voltage probe as well as additional advantageous preferred features added to the portable diagnostic apparatus discussed in detail below.
- Figure 6 shows schematically the electronic circuitry in the main housing in one preferred embodfment.
- FIG. 10 the portable diagnostic apparatus shown generally at 10 which includes a main housing box 12 which includes electronic circuitry that connects positive probe 16 to a LED (light emitting diode) 22 and a negative clamp 20 which is adapted to engage the negative terminal 43 from a motor vehicle car battery 45 shown best in Figure 3.
- a main housing box 12 which includes electronic circuitry that connects positive probe 16 to a LED (light emitting diode) 22 and a negative clamp 20 which is adapted to engage the negative terminal 43 from a motor vehicle car battery 45 shown best in Figure 3.
- LED light emitting diode
- a negative probe 14 in electrical communication with a light LED 24 which is also in electrical communication with a positive clamp 18 which is adapted to be electrically connected to the positive terminal 47 of a motor vehicle car battery 45 shown in Figure 3.
- the positive and negative clamps 20 and 18 are connected to the respective positive and negative terminals 47, 43 of the motor vehicle battery 45.
- a rubber boot for the back of an injector plug of Hie engine will expose two wires to which the respective probes 14 and 16 can then be conveniently plugged into as shown in Figure 3.
- the testing environment of the circuitry in the main housing 10 will be such that when one of the indicator LED 24 intermittently flashes, that being the negative probe 14 connected to one of the w ⁇ res exposed from the injector plug, this will indicate the presence of a negative pulse whereas the continuous illumination on LED 22 represents a continuous positive voltage.
- box 25 will have electric circuitry that will connect the positive clamp 34 with the LED 26 with the negative probe 30 so that when this probe 30 is connected to an exposed wire at the back of the injector plug illumination will take place intermittently on LED 26 if there is a negative pulse present.
- box 23 wherein the electric circuitry connects the negative clamp 36 with the LED 28 and the positive probe 32 so that when the probe 32 engages with the exposed wiring of the injector plug and the engine is running continuous illumination of LED 28 will be reflective of a presence of a positive voltage.
- Figure 4 simply shows that the portable ⁇ dfagnostic apparatus does not interrupt the operating conditions of the engine and could in fact be powered through the twelve volt cigarette battery connection 48 so effectively when the vehicle 51 is running it is possible for the occupant to carry out diagnostic testing with the device 10 on the engine simultaneously in relation to determining various positive and negative voltages as well as the presence or absence of electrical pulses.
- Figure 5 simply shows a further preferred embodiment of the invention where the respective positive and negative clamps to the power supply 52 and 54 along with a connection to a power supply or a 12 volt cigarette adapter 56 along with the positive and negative probes 58 and 60 can be joined together in the one single adapter 62 which can then be received into a corresponding slot 64 of the main housing unit 50.
- the housing unit 50 also includes its own separate power supply, battery 66 which means that while LED's 68 and 70 can function in relation to the simultaneous analysis of both positive and negative voltages and/or electrical pulses inside the engine and the engine management system *
- the additional LED 72 can be used as a reference for separate voltage detection.
- a buzzer (not shown) is also included as a continuity detector for the engine as well as the vehicle per se.
- Figure 6 shows schematically the electronic circuitry, shown generally as 80, in the main housing 90.
- the positive probe (not shown) can connect at 82 to an LED 86 that connects to resistor 87 and then diode 92 to which the Negative clamp (not shown) to the power supply can be connected at 96.
- the negative probe (not shown) connects to the LED 88 at point 84 and the LED 88 connects to diode 94 via resistor 89.
- Diode 94 connects to the positive damp (not shown) of the power supply that can be connected at point 98.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ588944A NZ588944A (en) | 2008-04-02 | 2009-04-01 | Injector plug electrical pulse and voltage diagnostic tester detecting positive and negative voltages |
CN2009801203617A CN102047093B (en) | 2008-04-02 | 2009-04-01 | Engine electric pulse and voltage probe |
AU2009230878A AU2009230878B2 (en) | 2008-04-02 | 2009-04-01 | Engine electrical pulse and voltage probe |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2008901573A AU2008901573A0 (en) | 2008-04-02 | EC-Jector | |
AU2008901573 | 2008-04-02 | ||
AU2008903667A AU2008903667A0 (en) | 2008-07-17 | Ec-jector pulse probe 2 | |
AU2008903667 | 2008-07-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009121134A1 true WO2009121134A1 (en) | 2009-10-08 |
Family
ID=41134745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2009/000397 WO2009121134A1 (en) | 2008-04-02 | 2009-04-01 | Engine electrical pulse and voltage probe |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN102047093B (en) |
AU (1) | AU2009230878B2 (en) |
NZ (1) | NZ588944A (en) |
WO (1) | WO2009121134A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1338420A (en) * | 1970-12-24 | 1973-11-21 | Ledger Co Ltd Rupert | Electrical indicator |
US4740745A (en) * | 1986-07-14 | 1988-04-26 | Sainz Michael A | Polarity and continuity tester for primary and secondary automotive circuits |
US5572143A (en) * | 1993-10-19 | 1996-11-05 | Mac Tools, Inc. | Circuit testing device |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2114156U (en) * | 1992-03-16 | 1992-08-26 | 傅玉源 | Engine failure stethoscope |
-
2009
- 2009-04-01 AU AU2009230878A patent/AU2009230878B2/en not_active Ceased
- 2009-04-01 NZ NZ588944A patent/NZ588944A/en not_active IP Right Cessation
- 2009-04-01 CN CN2009801203617A patent/CN102047093B/en not_active Expired - Fee Related
- 2009-04-01 WO PCT/AU2009/000397 patent/WO2009121134A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1338420A (en) * | 1970-12-24 | 1973-11-21 | Ledger Co Ltd Rupert | Electrical indicator |
US4740745A (en) * | 1986-07-14 | 1988-04-26 | Sainz Michael A | Polarity and continuity tester for primary and secondary automotive circuits |
US5572143A (en) * | 1993-10-19 | 1996-11-05 | Mac Tools, Inc. | Circuit testing device |
Also Published As
Publication number | Publication date |
---|---|
NZ588944A (en) | 2012-04-27 |
CN102047093A (en) | 2011-05-04 |
AU2009230878A1 (en) | 2009-10-08 |
CN102047093B (en) | 2012-04-04 |
AU2009230878B2 (en) | 2013-06-13 |
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