WO2004092563A1 - エンジンの始動制御装置及び始動制御方法 - Google Patents
エンジンの始動制御装置及び始動制御方法 Download PDFInfo
- Publication number
- WO2004092563A1 WO2004092563A1 PCT/JP2004/004924 JP2004004924W WO2004092563A1 WO 2004092563 A1 WO2004092563 A1 WO 2004092563A1 JP 2004004924 W JP2004004924 W JP 2004004924W WO 2004092563 A1 WO2004092563 A1 WO 2004092563A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- engine
- fuel
- generator
- pulse signal
- crank pulse
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 15
- 239000000446 fuel Substances 0.000 claims abstract description 47
- 239000007858 starting material Substances 0.000 claims abstract description 28
- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- 238000010248 power generation Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
- F02D41/064—Introducing corrections for particular operating conditions for engine starting or warming up for starting at cold start
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
- F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
Definitions
- the present invention relates to an engine start control device and a start control method.
- the present invention relates to an engine start control device and a start control method.
- This application is based on Japanese Patent Application No. 2003-107707, and incorporates its contents. Background technical book
- a battery-less fuel injection device for a multi-cylinder internal combustion engine in which an excessive load is not applied to a generator when the engine is started has been known (for example, Japanese Patent Application Laid-Open No. 2002-106703)
- this batteryless fuel injection device which cylinder the crank pulse signal output from the signal generator after the start operation of the internal combustion engine is started by the recoil starter device and the kick starter device. If it is not known, fuel is injected into each cylinder in a predetermined order each time a reference pulse signal is generated.
- the start operation is performed manually by a recoil starter device or a kick starter device.
- the output voltage of the generator fluctuates, the power supply voltage of the injector becomes unstable, and there is a problem that sufficient fuel is not supplied and the startability is deteriorated.
- the conventional technology in which the fuel is injected in a tentative order may be somewhat limited. During this time, there is a problem that a start operation only to drive the generator is required, and a load is imposed on the start.
- an object of the present invention is to provide an engine start control device and a start control method that can improve startability. Disclosure of the invention In order to solve the above problems, the present invention employs the following solutions.
- the engine start control device of the present invention is an engine start control device that can start by receiving generated power from a generator driven by a starter device, and includes a power generation waveform and a crank pulse signal of the generator. After the start operation of the starter device, a fuel injection signal is output to an injector that injects fuel into the engine in accordance with the crank pulse signal when the voltage value of the generated power reaches a peak value.
- a fuel injection timing setting means is provided.
- An engine start control device is an engine start control device capable of starting by receiving generated electric power from a generator driven by a starter device, comprising: a crank pulse signal immediately after the start operation of the starter device.
- An offset time measuring means for measuring an offset time of a peak timing of a generation voltage of the generator with respect to the fuel cell;
- Fuel injection timing setting means for outputting an injection signal.
- the offset measuring unit measures the offset time, which is the difference between the crank pulse signal and the peak timing of the generated voltage.
- An engine start control method is a start control method for an engine that can be started by receiving generated power from a generator driven by a starter device, the method being adapted to a peak timing of a generated voltage of the generator.
- the fuel is injected from an injector that injects fuel into the engine. According to this method, a sufficient amount of fuel can be injected, so that the engine can be reliably started.
- FIG. 1 is a system configuration diagram of an outboard motor using an embodiment of an engine start control device and a start control method of the present invention.
- FIG. 2 is a flowchart showing the operation of the start control device.
- FIG. 3 is a time chart showing the crank pulse signal, the generated voltage, and the injection timing of the injector.
- FIG. 1 is a system configuration diagram of an outboard motor according to the present embodiment.
- the engine (not shown) of the outboard motor 1 includes a fuel pump (P) 3 driven via the ECU 2, and supplies fuel supplied by the fuel pump 3 to injectors (INJ # 1 to 4).
- the fuel is injected by 4 and energized to the ignition (IG) coil 5 to be ignited by the ignition device and burned in the cylinder.
- the ignition device ignites at an optimum crank angle position for each cylinder based on the crank pulse signal.
- power is supplied from the battery 8 to the injector 4 in accordance with the ignition timing, and fuel is injected by the injector 4.
- the ECU 2 controls the fuel supply amount of the injector 4, the injection timing, the ignition timing by the ignition coil 5, the control of the PTC heater 18 for idle control, and the accessor for accessories (ACC) 19 such as lamps. Open / close control of the relay 7 provided in the re-circuit 6.
- the ECU 2 is a central processing unit that performs various types of arithmetic processing, a CPU, a RAM (Random Access Memory) used to store data in the middle of arithmetic operations by the CPU, a program table and maps executed by the CPU.
- ROM Read Only Memory
- EEPROM Electrically Erasable and Programmable Read Only Memory
- ECU 2 includes a crank angle (CRK) sensor, a throttle opening (TH) sensor, a MAP sensor that detects negative engine intake pressure, a water temperature sensor that detects engine cooling water temperature, an intake air temperature sensor, an overheat sensor, and an engine cooling system. Signals from the oil pressure switch, stop switch for sudden stop, and engine speed (NE) sensor are input. Further, information on the output voltage of the generator is input from a regulator 15 described later. Further, a warning is given by a warning buzzer 10 and a warning light 11 if necessary, and data is transmitted to and received from the failure diagnosis machine 12.
- Reference numeral 13 indicates a generator (ACG).
- the generator 13 generates electricity when the engine is driven, and charges the battery (BAT) 8 of the power supply circuit 9 via a rectifier (REC) 14 as a rectifier and a regulator (REG) 15 for adjusting the voltage. It is.
- the generator 13 also generates electric power in the case of a start operation by the manual recoil starter device 16, and generates starting power for the ECU 2, driving power for the fuel pump (P) 3, and the like when the battery has a low capacity described later.
- the recoil starter device 16 is a starter device that starts the engine by pulling a starter rope.
- Reference numeral 17 denotes a main switch of the power supply circuit 9.
- step S1 offset time measuring means
- the crank pulse signal and the power generation voltage of the generator are referenced based on the crank pulse signal.
- the deviation of the peak timing is measured as the offset time To.
- a three-phase, 18-pole charging coil is used for the generator 13, and a flywheel is provided with a detection unit every 20 degrees in response to this.
- the generator 13 is driven by the start operation of the recoil starter device 16 in a state where power from the battery 8 cannot be obtained, the output voltage of the generator 13 becomes large as shown in FIG. It occurs while fluctuating.
- the cycle of the crank pulse signal with the cycle of the generated voltage of the generator 13 (power generation waveform)
- the cycle of the generated voltage of the generator 13 based on the cycle of the crank pulse signal, Specifically, it is possible to know when the peak of the generated voltage comes.
- the peak VPm of the next generation voltage (specifically, the fifth peak) from the rising point CPn (specifically, the fourth rising point CP4 (60-degree position)) of each crank pulse signal
- step S2 it is determined whether or not the next crank pulse signal rising point CP5 (position at 80 degrees) has been reached. If the determination result is "NO”, the process proceeds to step S2 again. If the determination is "YES”, the flow proceeds to step S3.
- step S3 fuel injection timing setting means
- TO is set in the subtraction timer, and the process proceeds to step S4.
- step S4 fuel injection timing setting means
- step S4 fuel injection timing setting means
- the power generation voltage of the generator 13 reaches a peak at the timing of injecting the fuel from the injector 4, so that the fuel can be injected with a sufficient amount of fuel injection, so that there is no misfire due to low fuel. .
- the difference between the crank pulse signal and the peak of the generated voltage is measured, and after the crank pulse signal is output, when the generated voltage of the generator 13 reaches the peak, the fuel is injected by the injector 4. Therefore, the engine can be started in a short time from the start operation and at a time when the power supply voltage of the injector 4 can be sufficiently obtained.
- the present invention is not limited to the above embodiment.
- the outboard motor 1 including the recoil starter device 16 has been described as an example, but the present invention is also applicable to a start control device for a three- or four-wheel buggy equipped with a kick starter device.
- the case where the battery 8 and the recoil starter device 16 are used in combination has been described as an example, but the present invention can also be applied to a case without a battery.
- the procedure executed by the engine start control device is recorded on a computer-readable recording medium, and the program recorded on this recording medium is read into a computer system and executed to execute the present invention. It is assumed that the engine start control device of the invention is realized.
- the computer system includes hardware such as an QS (Operating System) and peripheral devices.
- the “computer system” shall include a homepage providing environment (or display environment) if a WWW (World Wide Web) system is used.
- a WWW World Wide Web
- computer-readable recording medium refers to a storage device such as a flexible disk, a magneto-optical disk, a ROM, a CD-ROM, or any other hard disk, or a hard disk or the like built into a computer system.
- the “computer-readable recording medium” includes a volatile memory (eg, a volatile memory inside a computer system that is a system or a client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line).
- RAM random access memory
- transmission medium refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line.
- the above program may be for realizing a part of the functions described above.
- the functions described above can be performed by a program already recorded in the computer system.
- a program that can be realized in combination with a program, a so-called difference file (difference program) may be used.
- the present invention it is possible to inject fuel into the injector at the peak of the generator voltage that fluctuates in a cycle corresponding to the crank pulse signal.
- the engine can be started at the timing when the engine is fully obtained.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/552,614 US7231908B2 (en) | 2003-04-11 | 2004-04-05 | Engine start control device and start control method |
EP04725835A EP1614883A1 (en) | 2003-04-11 | 2004-04-05 | Start controller and start control method of engine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003107795A JP2004316451A (ja) | 2003-04-11 | 2003-04-11 | エンジンの始動制御装置及び始動制御方法 |
JP2003-107795 | 2003-04-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004092563A1 true WO2004092563A1 (ja) | 2004-10-28 |
Family
ID=33295868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/004924 WO2004092563A1 (ja) | 2003-04-11 | 2004-04-05 | エンジンの始動制御装置及び始動制御方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7231908B2 (ja) |
EP (1) | EP1614883A1 (ja) |
JP (1) | JP2004316451A (ja) |
WO (1) | WO2004092563A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4173502B2 (ja) * | 2005-08-05 | 2008-10-29 | 株式会社ケーヒン | 電子燃料噴射制御装置 |
JP4925976B2 (ja) * | 2007-08-29 | 2012-05-09 | 株式会社ケーヒン | 内燃機関制御装置 |
JP2009185717A (ja) * | 2008-02-06 | 2009-08-20 | Yamaha Motor Co Ltd | 燃料噴射制御装置および車両 |
US8347862B2 (en) * | 2009-12-23 | 2013-01-08 | Ford Global Technologies, Llc | System and method for injecting fuel to a gaseous fueled engine |
JP2015081540A (ja) | 2013-10-22 | 2015-04-27 | 富士重工業株式会社 | エンジン |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6453058A (en) * | 1987-08-20 | 1989-03-01 | Yanmar Diesel Engine Co | Starter of engine |
JPH05126020A (ja) * | 1991-11-05 | 1993-05-21 | Honda Motor Co Ltd | エンジンのバツテリレス電子燃料噴射制御装置 |
JP2002206466A (ja) * | 2001-01-10 | 2002-07-26 | Honda Motor Co Ltd | 電磁式燃料ポンプの制御方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3310920A1 (de) * | 1983-03-25 | 1984-09-27 | Robert Bosch Gmbh, 7000 Stuttgart | Verfahren und vorrichtung zur bestimmung des einspritzzeitpunktes bei brennkraftmaschinen waehrend des startvorgangs |
US4683859A (en) * | 1984-11-09 | 1987-08-04 | Nippondenso Co., Ltd. | Apparatus for injecting fuel into internal combustion engine |
JPS6453058U (ja) | 1987-09-25 | 1989-03-31 | ||
SE459822B (sv) * | 1987-11-24 | 1989-08-07 | Saab Scania Ab | Foerfarande foer att erhaalla foerhoejd uppladdning av en taendkondensator i ett kapacitivt taendsystem foer foerbraenningsmotorer under start |
JP3858582B2 (ja) | 2000-09-29 | 2006-12-13 | 国産電機株式会社 | 多気筒内燃機関用バッテリレス燃料噴射装置 |
JP2004162691A (ja) * | 2002-09-17 | 2004-06-10 | Kokusan Denki Co Ltd | 電子式エンジン制御装置 |
-
2003
- 2003-04-11 JP JP2003107795A patent/JP2004316451A/ja active Pending
-
2004
- 2004-04-05 US US10/552,614 patent/US7231908B2/en not_active Expired - Fee Related
- 2004-04-05 EP EP04725835A patent/EP1614883A1/en not_active Withdrawn
- 2004-04-05 WO PCT/JP2004/004924 patent/WO2004092563A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6453058A (en) * | 1987-08-20 | 1989-03-01 | Yanmar Diesel Engine Co | Starter of engine |
JPH05126020A (ja) * | 1991-11-05 | 1993-05-21 | Honda Motor Co Ltd | エンジンのバツテリレス電子燃料噴射制御装置 |
JP2002206466A (ja) * | 2001-01-10 | 2002-07-26 | Honda Motor Co Ltd | 電磁式燃料ポンプの制御方法 |
Also Published As
Publication number | Publication date |
---|---|
US7231908B2 (en) | 2007-06-19 |
US20060278200A1 (en) | 2006-12-14 |
EP1614883A1 (en) | 2006-01-11 |
JP2004316451A (ja) | 2004-11-11 |
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