JP2001041133A - Method of diagnosing fuel feed system of internal combustion engine for automobile in particular - Google Patents
Method of diagnosing fuel feed system of internal combustion engine for automobile in particularInfo
- Publication number
- JP2001041133A JP2001041133A JP2000212795A JP2000212795A JP2001041133A JP 2001041133 A JP2001041133 A JP 2001041133A JP 2000212795 A JP2000212795 A JP 2000212795A JP 2000212795 A JP2000212795 A JP 2000212795A JP 2001041133 A JP2001041133 A JP 2001041133A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- fuel
- supply system
- internal combustion
- combustion engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 88
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims description 14
- 238000002347 injection Methods 0.000 claims abstract description 30
- 239000007924 injection Substances 0.000 claims abstract description 30
- 238000003745 diagnosis Methods 0.000 claims abstract description 11
- 238000012546 transfer Methods 0.000 claims description 20
- 238000005086 pumping Methods 0.000 claims 1
- 239000002828 fuel tank Substances 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000004092 self-diagnosis Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- -1 that is Substances 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
- F02D41/22—Safety or indicating devices for abnormal conditions
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
- F02D41/3836—Controlling the fuel pressure
-
- 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
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D2041/224—Diagnosis of the fuel system
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
- F02D41/3836—Controlling the fuel pressure
- F02D41/3845—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped
- F02D41/3854—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped with elements in the low pressure part, e.g. low pressure pump
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Fuel-Injection Apparatus (AREA)
- Testing Of Engines (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、燃料が噴射弁を介
して直接燃焼室に噴射可能である、特に自動車の内燃機
関の燃料供給系を診断する方法に関する。また、本発明
は、この方法を実施するために構成された自己診断装置
および外部診断装置にも関する。The present invention relates to a method for diagnosing a fuel supply system of an internal combustion engine of a motor vehicle, in which fuel can be directly injected into a combustion chamber via an injection valve. The invention also relates to a self-diagnostic device and an external diagnostic device configured to perform the method.
【０００２】[0002]
【従来の技術】電子式の噴射装置を備えたオットーエン
ジンでは、約３バールから約１０バールの燃料圧が必要
である。この燃料圧は電動燃料ポンプによって形成さ
れ、機械式の圧力制御装置によって制御して使用され
る。燃料直接噴射装置を備えたオットーエンジンでも、
この燃料圧は高圧ポンプのための前搬送圧として必要で
ある。2. Description of the Prior Art Otto engines with electronic injection devices require a fuel pressure of about 3 bar to about 10 bar. This fuel pressure is generated by an electric fuel pump, and is controlled and used by a mechanical pressure control device. Otto engines with direct fuel injection,
This fuel pressure is required as the pre-transfer pressure for the high-pressure pump.
【０００３】公知の、電子式の噴射装置を備えたオット
ーエンジンでは、前搬送圧の電子式の監視または電子式
の制御が行われないので、制御装置または工場試験器に
よる前搬送圧の診断は不可能である。[0003] In known Otto engines equipped with an electronic injection device, the electronic monitoring or electronic control of the pre-transport pressure is not performed, so that the diagnosis of the pre-transport pressure by the control device or the factory tester is not possible. Impossible.
【０００４】直接噴射型のオットーエンジンでは、前搬
送圧は、実質的に高圧ポンプへ供給するためにだけに必
要である。この場合前搬送圧には高い要求が課せられな
い。なぜならば、この前搬送圧は、高圧を発生可能にす
るためにだけ存在すればよいからである。しかしながら
直接噴射型のオットーエンジンでも、たとえばエンジン
始動時のような、前搬送圧で運転する必要のある運転領
域が存在する。このような理由に基づいて、直接噴射型
のオットーエンジンでも、前搬送圧はエラーのない駆動
のための重要なパラメータである。[0004] In Otto engines of the direct injection type, the pre-transport pressure is required substantially only to supply the high pressure pump. In this case, no high demands are placed on the pre-transport pressure. This is because the pre-transfer pressure only needs to be present in order to be able to generate a high pressure. However, even in the direct injection type Otto engine, there is an operating region in which it is necessary to operate at the previous conveying pressure, for example, when starting the engine. For this reason, the pre-transport pressure is an important parameter for error-free operation even in a direct injection Otto engine.
【０００５】[0005]
【発明が解決しようとする課題】本発明の課題は、燃料
直接噴射装置を備えた内燃機関の燃料供給系を診断する
方法を改良して、前搬送圧を監視もしくは診断すること
ができるような方法を提供することである。SUMMARY OF THE INVENTION It is an object of the present invention to provide an improved method for diagnosing a fuel supply system of an internal combustion engine having a direct fuel injection device, so that the pre-transfer pressure can be monitored or diagnosed. Is to provide a way.
【０００６】[0006]
【課題を解決するための手段】この課題を解決するため
の本発明の方法によれば、内燃機関を、高圧への圧力上
昇が非活性化されている運転形式で運転し、燃料供給系
の燃料分配管内の前搬送圧を、該燃料分配管に取り付け
られた圧力センサを用いて検出するようにした。According to the method of the present invention, an internal combustion engine is operated in an operating mode in which the pressure rise to high pressure is deactivated, and the fuel supply system is operated. The pre-transfer pressure in the fuel distribution pipe is detected by using a pressure sensor attached to the fuel distribution pipe.
【０００７】[0007]
【発明の効果】本発明によれば、直接噴射型のオットー
エンジンの各燃料供給系に必ず設けられている圧力セン
サが、前搬送圧を診断するために使用される。前搬送圧
を診断するためにエンジンは、圧力上昇が非活性化（de
aktiviert）されている運転形式で運転しなければなら
ない。According to the present invention, a pressure sensor always provided in each fuel supply system of the direct injection Otto engine is used for diagnosing the pre-transfer pressure. In order to diagnose the pre-transfer pressure, the engine must deactivate the pressure rise (de
aktiviert) must be driven in the manner of driving.
【０００８】前搬送圧の診断に関して、直接噴射装置を
備えたオットーエンジンにおける高圧制御装置のための
２つの異なるコンセプトがある。しかしながらこれら両
方のために、圧力上昇が非活性化されている運転形式が
存在するので、前搬送圧は、燃料分配管に取り付けられ
た圧力センサによって検出することができる。このよう
にして、燃料供給系内の前搬送圧は、エンジンに付加的
な部材を取り付けて燃料供給系に係合させる（Montagee
ingriff）必要なしに診断することができる。With regard to the diagnosis of the pre-transfer pressure, there are two different concepts for the high-pressure control in Otto engines with direct injection. However, for both of these, there are operating modes in which the pressure rise is deactivated, so that the pre-transfer pressure can be detected by a pressure sensor mounted on the fuel distribution pipe. In this way, the pre-transfer pressure in the fuel supply system is used to attach additional components to the engine to engage the fuel supply system (Montagee
ingriff) can be diagnosed without the need.
【０００９】上記の、内燃機関の運転形式は、たとえば
制御装置内で、この制御装置に接続される工場試験装置
によって強制することができる。The mode of operation of the internal combustion engine described above can be enforced, for example, in a control unit by a factory test device connected to the control unit.
【００１０】その他の特徴、使用例および利点は、以下
の、図面にて説明した発明の実施の形態によって明らか
である。[0010] Other features, examples of use and advantages will be apparent from the following embodiments of the invention described in the drawings.
【００１１】[0011]
【発明の実施の形態】以下に本発明の実施の形態を図面
を用いて具体的に説明する。Embodiments of the present invention will be specifically described below with reference to the drawings.
【００１２】図１および図２は基本配置構成を示してい
る。この基本配置構成は、付加的な弁および／または接
続部材によって、たとえば冷却または排気のための特別
な処置を実現するために様々な形式で拡張することがで
きる。FIGS. 1 and 2 show the basic arrangement. This basic arrangement can be extended in various ways by means of additional valves and / or connecting elements, for example to realize special measures for cooling or exhaust.
【００１３】図１に示した、圧力制御装置を備えた燃料
供給系では、燃料つまりガソリンは、燃料タンク１か
ら、機械式の圧力制御装置を有する電動燃料ポンプ２に
よって、前搬送圧で高圧ポンプ３に圧送される。この高
圧ポンプ３から、燃料は、圧力センサ５を備えた燃料分
配管（レール）４内に達し、この燃料分配管４から個々
の燃料噴射弁７に達する。図１に示した圧力制御される
燃料系では、圧力制御弁６を有する制御回路８によっ
て、連続する燃料流が存在するように配慮される。この
場合、噴射弁７を介して内燃機関の燃焼室に噴射される
燃料量は、制御回路８の妨害要素（Stoergroesse）であ
る。燃料分配管４内の圧力は、制御回路８を使用するこ
とで、燃料分配管４を通る燃料流の変化によって制御さ
れる。In the fuel supply system having a pressure control device shown in FIG. 1, fuel, that is, gasoline, is supplied from a fuel tank 1 by an electric fuel pump 2 having a mechanical pressure control device to a high pressure pump at a pre-transport pressure. 3 to be pumped. From the high-pressure pump 3, the fuel reaches a fuel distribution pipe (rail) 4 provided with a pressure sensor 5, and from the fuel distribution pipe 4 reaches individual fuel injection valves 7. In the pressure-controlled fuel system shown in FIG. 1, a control circuit 8 having a pressure control valve 6 ensures that a continuous fuel flow exists. In this case, the amount of fuel injected into the combustion chamber of the internal combustion engine via the injection valve 7 is a disturbing element (Stoergroesse) of the control circuit 8. By using the control circuit 8, the pressure in the fuel distribution pipe 4 is controlled by a change in the fuel flow passing through the fuel distribution pipe 4.
【００１４】本発明による、前搬送燃料系の診断方法を
実施するために、図１に示した、圧力制御装置を備えた
燃料供給系では、圧力制御弁６が完全に開放されてい
る。In order to carry out the method for diagnosing the pre-transported fuel system according to the present invention, the pressure control valve 6 is completely opened in the fuel supply system having the pressure control device shown in FIG.
【００１５】燃料供給系が負荷されていない場合、前搬
送圧は始動装置の作動によって噴射弁の閉鎖状態におい
て検出され診断される。When the fuel supply system is not loaded, the pre-transfer pressure is detected and diagnosed by the operation of the starting device in the closed state of the injection valve.
【００１６】燃料供給系が負荷されている場合には、前
搬送圧を診断するために、制御装置によって、噴射弁７
の様々な噴射時間が設定される。When the fuel supply system is loaded, the control device controls the injection valve 7 to diagnose the pre-transfer pressure.
Various injection times are set.
【００１７】図２に示した、必要量制御装置（Bedarfss
teuerung）を備えた燃料供給系では、燃料は、燃料タン
ク１から、機械式の圧力制御装置を備えた電動燃料ポン
プ２によって、前搬送圧で、流量制御弁１３を備えた高
圧ポンプ３に圧送される。流量制御弁１３によって、燃
料分配管４には、噴射弁７による噴射のために必要であ
る燃料量だけが圧送される。精密な調整を行う高圧制御
装置（図示せず）が付加的に設けられていてもよい。高
圧ポンプ３に流量制御弁１３を組み合わせることによっ
て、噴射のために必要な燃料量を正確に配量して後搬送
することができる。さらに、流量制御弁１３と燃料分配
管４との間の燃料管路には逆止弁１０が設けられてい
る。燃料分配管４には、図１に示した、圧力制御装置を
備えた燃料供給系のように、圧力センサ５が設けられて
いる。The required amount control device (Bedarfss) shown in FIG.
In a fuel supply system equipped with a teuerung, fuel is pumped from the fuel tank 1 by means of an electric fuel pump 2 equipped with a mechanical pressure control device to a high pressure pump 3 equipped with a flow control valve 13 at a pre-transport pressure. Is done. By the flow control valve 13, only the fuel amount necessary for injection by the injection valve 7 is pumped into the fuel distribution pipe 4. A high-pressure control device (not shown) for precise adjustment may additionally be provided. By combining the high-pressure pump 3 with the flow control valve 13, the amount of fuel required for injection can be accurately measured and post-conveyed. Further, a check valve 10 is provided in a fuel pipe between the flow control valve 13 and the fuel distribution pipe 4. The fuel distribution pipe 4 is provided with a pressure sensor 5 like the fuel supply system having the pressure control device shown in FIG.
【００１８】前搬送圧を診断するために、図２に示し
た、必要量制御される燃料系では、先ず、燃料分配管４
内に高圧が存在しないことを保証するために数回の噴射
が噴射弁を介して行われる。高圧ポンプ３および流量制
御弁１３の設計に応じて、流量制御弁１３は、診断する
ために、高圧搬送が行われないように制御しなければな
らない。この状態では、燃料分配管４は前搬送系を介し
てのみ電動燃料ポンプ２から燃料供給される。燃料供給
系が負荷されていない場合、前搬送圧の診断は、始動装
置によって噴射弁７の閉鎖状態において行われる。燃料
供給系が負荷されている場合、前搬送圧の診断は、様々
な噴射時間の設定によって行われる。In order to diagnose the pre-transfer pressure, in the fuel system whose required amount is controlled as shown in FIG.
Several injections take place via the injection valve in order to ensure that no high pressure is present therein. Depending on the design of the high-pressure pump 3 and the flow control valve 13, the flow control valve 13 must be controlled so that high-pressure transport is not performed for diagnosis. In this state, the fuel is supplied from the electric fuel pump 2 to the fuel distribution pipe 4 only via the front conveyance system. When the fuel supply system is not loaded, the diagnosis of the pre-transfer pressure is performed by the starter in the closed state of the injection valve 7. When the fuel supply system is loaded, the diagnosis of the pre-transfer pressure is performed by setting various injection times.
【００１９】前搬送圧を自己診断するために、図１にも
図２にも示していない制御装置が圧力センサ５に接続さ
れており、この制御装置は圧力センサ５によって検出さ
れた、燃料分配管４内の圧力信号を受信する。制御装置
は方法ステップを実行し、圧力センサ５から得られた圧
力信号に基づいて前搬送圧を診断する。For self-diagnosis of the pre-transfer pressure, a control device not shown in FIGS. 1 and 2 is connected to the pressure sensor 5, which controls the fuel distribution detected by the pressure sensor 5. The pressure signal in the pipe 4 is received. The control device performs the method steps and diagnoses the pre-transfer pressure based on the pressure signal obtained from the pressure sensor 5.
【００２０】外部診断、たとえば工場診断の場合には、
図示していない制御装置に接続された工場診断装置（同
様に図示せず）は、制御装置を強制的に、前搬送圧が圧
力センサ５によって検出されるような運転状態にさせ
る。In the case of an external diagnosis, for example, a factory diagnosis,
A factory diagnostic device (also not shown) connected to a control device, not shown, forces the control device into an operating state in which the pre-transfer pressure is detected by the pressure sensor 5.
【図１】特に自動車の内燃機関の、圧力制御装置を備え
た燃料供給系を概略的に示すブロック回路図である。FIG. 1 is a block circuit diagram schematically illustrating a fuel supply system with a pressure control device, particularly for an internal combustion engine of a motor vehicle.
【図２】特に自動車の内燃機関の、必要量制御装置を備
えた燃料供給系を概略的に示すブロック回路図である。FIG. 2 is a block circuit diagram schematically illustrating a fuel supply system including a required amount control device, particularly for an internal combustion engine of a motor vehicle.
１ 燃料タンク、 ２ 電動燃料ポンプ、 ３ 高圧ポ
ンプ、 ４ 燃料分配管、 ５ 圧力センサ、 ６ 圧
力制御弁、 ７ 燃料噴射弁、 ８ 制御回路、 １０
逆止弁、 １３ 流量制御弁Reference Signs List 1 fuel tank, 2 electric fuel pump, 3 high pressure pump, 4 fuel distribution pipe, 5 pressure sensor, 6 pressure control valve, 7 fuel injection valve, 8 control circuit, 10
Check valve, 13 Flow control valve
Claims (7)
に噴射可能である、内燃機関の燃料供給系を診断する方
法において、 内燃機関を、高圧への圧力上昇が非活性化されている運
転形式で運転し、燃料供給系の燃料分配管（４）内の前
搬送圧を、該燃料分配管（４）に取り付けられた圧力セ
ンサ（５）を用いて検出することを特徴とする、内燃機
関の燃料供給系を診断する方法。1. A method for diagnosing a fuel supply system of an internal combustion engine, wherein fuel can be injected directly into a combustion chamber via an injection valve (7), wherein the internal combustion engine is deactivated to a high pressure. The fuel cell system is operated in the following operation mode, and detects the pre-transfer pressure in the fuel distribution pipe (4) of the fuel supply system using a pressure sensor (5) attached to the fuel distribution pipe (4). Diagnosing a fuel supply system of an internal combustion engine.
される燃料供給系を診断するために、前記圧力制御弁
（６）を完全に開放する、請求項１記載の方法。2. The method according to claim 1, wherein the pressure control valve is completely opened for diagnosing a pressure-controlled fuel supply system having the pressure control valve.
制御される燃料供給系を診断するために、診断前に数回
の噴射によって、燃料分配管（４）内に高圧が存在しな
いことを保証し、流量制御弁（１３）を高圧圧送が行わ
れないように調節する、請求項１記載の方法。3. In order to diagnose a fuel supply system which has a flow control valve (13) and is controlled in a required amount, a high pressure exists in the fuel distribution pipe (4) by several injections before the diagnosis. 2. The method according to claim 1, further comprising adjusting the flow control valve so that high-pressure pumping is not performed.
系が負荷されていない場合に、前搬送圧を、始動モータ
の作動中に検出する、請求項２または３記載の方法。4. The method according to claim 2, wherein the pre-transfer pressure is detected during operation of the starting motor when the injection valve is closed and the fuel supply system is not loaded.
搬送圧を、噴射弁（７）の様々な噴射時間を設定しなが
ら検出する、請求項２または３記載の方法。5. The method according to claim 2, wherein when the fuel supply system is loaded, the pre-transfer pressure is detected while setting various injection times of the injection valve.
燃機関の燃料供給系を自己診断する装置において、 燃料分配管（４）内の圧力を検出する圧力センサ（５）
の出口が、中央制御装置の入口に接続されており、該中
央制御装置は請求項１から５記載の方法を実施するため
に適していることを特徴とする、内燃機関の燃料供給系
を自己診断する装置。6. An apparatus for self-diagnosing a fuel supply system of an internal combustion engine, wherein fuel can be directly injected into a combustion chamber, wherein a pressure sensor (5) for detecting a pressure in a fuel distribution pipe (4).
Is connected to the inlet of a central control unit, which is suitable for carrying out the method according to claim 1, wherein the fuel supply system of the internal combustion engine is self-contained. Device to diagnose.
動車の燃料供給系を、外部診断、特に工場診断する装置
において、 燃料分配管（４）内の圧力を検出する圧力センサ（５）
の出口が、中央制御装置の入口に接続されており、該中
央制御装置は請求項１から５記載の方法を実施するため
に適しており、外部診断装置、特に工場試験器が、高圧
への圧力上昇が非活性化されている内燃機関の運転形式
を、特に中央制御装置を介して強制することを特徴とす
る、自動車の燃料供給系を、外部診断、特に工場診断す
るための装置。7. A pressure sensor (5) for detecting a pressure in a fuel distribution pipe (4) in an apparatus for externally diagnosing a fuel supply system of an automobile, particularly a factory, in which fuel can be directly injected into a combustion chamber.
Is connected to the inlet of the central control unit, which is suitable for carrying out the method according to claims 1 to 5, wherein the external diagnostic device, in particular the factory tester, Device for external diagnosis, in particular for plant diagnosis, of the fuel supply system of a motor vehicle, characterized in that the operating mode of the internal combustion engine, in which the pressure rise is deactivated, is forced, in particular via a central control unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19933253A DE19933253B4 (en) | 1999-07-15 | 1999-07-15 | Method for diagnosing a fuel supply system of an internal combustion engine, in particular for a motor vehicle |
| DE19933253.3 | 1999-07-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001041133A true JP2001041133A (en) | 2001-02-13 |
| JP4700172B2 JP4700172B2 (en) | 2011-06-15 |
Family
ID=7914931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000212795A Expired - Fee Related JP4700172B2 (en) | 1999-07-15 | 2000-07-13 | In particular, a method for diagnosing a fuel supply system of an internal combustion engine of an automobile |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4700172B2 (en) |
| DE (1) | DE19933253B4 (en) |
| FR (1) | FR2796419B1 (en) |
| IT (1) | IT1318075B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103328796A (en) * | 2011-01-31 | 2013-09-25 | 罗伯特·博世有限公司 | Method for determining a control volume of an injector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08121281A (en) * | 1994-10-21 | 1996-05-14 | Nippondenso Co Ltd | Fuel injection device |
| JPH09209813A (en) * | 1996-02-08 | 1997-08-12 | Robert Bosch Gmbh | Control method of internal combustion engine and device thereof |
| JPH109073A (en) * | 1996-06-26 | 1998-01-13 | Unisia Jecs Corp | Property learning device for fuel pressure sensor |
| JPH1162748A (en) * | 1997-08-11 | 1999-03-05 | Sanshin Ind Co Ltd | Fuel supply system for fuel-injection type engine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5411007A (en) * | 1993-05-31 | 1995-05-02 | Suzuki Motor Corporation | Air-fuel ratio control apparatus of internal combustion engine |
| US5598817A (en) * | 1993-09-10 | 1997-02-04 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Fuel feeding system for internal combustion engine |
| DE19539883B4 (en) * | 1995-05-26 | 2011-06-01 | Robert Bosch Gmbh | Fuel supply system and method for operating an internal combustion engine |
| DE19614884A1 (en) * | 1996-04-16 | 1997-10-23 | Bosch Gmbh Robert | Control method and device for fuel-injected IC engine |
| DE19618932C2 (en) * | 1996-05-10 | 2001-02-01 | Siemens Ag | Device and method for regulating the fuel pressure in a high pressure accumulator |
-
1999
- 1999-07-15 DE DE19933253A patent/DE19933253B4/en not_active Expired - Fee Related
-
2000
- 2000-07-11 IT IT2000MI001552A patent/IT1318075B1/en active
- 2000-07-13 FR FR0009206A patent/FR2796419B1/en not_active Expired - Fee Related
- 2000-07-13 JP JP2000212795A patent/JP4700172B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08121281A (en) * | 1994-10-21 | 1996-05-14 | Nippondenso Co Ltd | Fuel injection device |
| JPH09209813A (en) * | 1996-02-08 | 1997-08-12 | Robert Bosch Gmbh | Control method of internal combustion engine and device thereof |
| JPH109073A (en) * | 1996-06-26 | 1998-01-13 | Unisia Jecs Corp | Property learning device for fuel pressure sensor |
| JPH1162748A (en) * | 1997-08-11 | 1999-03-05 | Sanshin Ind Co Ltd | Fuel supply system for fuel-injection type engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103328796A (en) * | 2011-01-31 | 2013-09-25 | 罗伯特·博世有限公司 | Method for determining a control volume of an injector |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1318075B1 (en) | 2003-07-21 |
| ITMI20001552A1 (en) | 2002-01-11 |
| FR2796419B1 (en) | 2005-11-11 |
| FR2796419A1 (en) | 2001-01-19 |
| DE19933253B4 (en) | 2006-01-19 |
| ITMI20001552A0 (en) | 2000-07-11 |
| DE19933253A1 (en) | 2001-01-25 |
| JP4700172B2 (en) | 2011-06-15 |
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