JP3500782B2 - Control device for turbocharger with motor / generator - Google Patents
Control device for turbocharger with motor / generatorInfo
- Publication number
- JP3500782B2 JP3500782B2 JP17122495A JP17122495A JP3500782B2 JP 3500782 B2 JP3500782 B2 JP 3500782B2 JP 17122495 A JP17122495 A JP 17122495A JP 17122495 A JP17122495 A JP 17122495A JP 3500782 B2 JP3500782 B2 JP 3500782B2
- Authority
- JP
- Japan
- Prior art keywords
- engine
- generator
- turbocharger
- compressor
- motor
- 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.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
- F02B37/10—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump at least one pump being alternatively or simultaneously driven by exhaust and other drive, e.g. by pressurised fluid from a reservoir or an engine-driven pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/02—Drives of pumps; Varying pump drive gear ratio
- F02B39/08—Non-mechanical drives, e.g. fluid drives having variable gear ratio
- F02B39/10—Non-mechanical drives, e.g. fluid drives having variable gear ratio electric
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は自動車のエンジンに
装着されるターボチャージャに関し、特に該ターボチャ
ージャに電動・発電機を備えた電動・発電機付ターボチ
ャージャの制御装置及びその制御方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turbocharger mounted on an engine of an automobile, and more particularly to a control device and a control method for a turbocharger with an electric / generator equipped with an electric motor / generator in the turbocharger. is there.
【０００２】[0002]
【従来の技術】自動車のエンジンの排気管に電動・発電
機付ターボチャージャが設けられ、エンジンの排気ガス
の有するエネルギを有効に回収するシステムが提案され
ている。上記システムにおいてエンジン低負荷運転領域
ではエンジンの空気過剰率が大きいためターボチャージ
ャのコンプレッサによる過給は必要でないにもかかわら
ず、実際には相当の過給、すなわちコンプレッサ仕事が
行われており、エネルギを無駄に消費している。このエ
ネルギの無駄な消費を少なくするような発明が特開平２
−１８１０２４号公報（以下、先行例という。）に開示
されている。この公報によれば、エンジンがアイドリン
グ回転等の際にコンプレッサ圧縮仕事量を少なくするよ
うに、コンプレッサのバイパス通路からエンジンに吸気
させるようにしたものが記載されている。2. Description of the Related Art A system has been proposed in which a turbocharger with a motor / generator is provided in an exhaust pipe of an engine of an automobile to effectively recover energy of exhaust gas of the engine. In the above system, although the engine excess air ratio is large in the engine low load operation range, supercharging by the compressor of the turbocharger is not necessary, but in reality, a considerable amount of supercharging, that is, compressor work is performed, and Is wasted. An invention that reduces the wasteful consumption of this energy is disclosed in Japanese Patent Laid-Open No. Hei 2
No. 181024 (hereinafter referred to as a prior art). According to this publication, an intake air is introduced into the engine from a bypass passage of the compressor so that the compression work of the compressor is reduced when the engine is idling.
【０００３】[0003]
【発明が解決しようとする課題】上記先行例に開示され
た技術においては、コンプレッサの圧縮仕事量を減少さ
せるという効果は発揮されるが、コンプレッサ圧縮仕事
量を完全に零にしていないので、このエネルギが無駄に
消費されている。さらに、電動・発電機は電動機運転が
なされておりエネルギの回収に供されていない。In the technique disclosed in the above-mentioned prior art, although the effect of reducing the compression work of the compressor is exhibited, the compression work of the compressor is not completely reduced to zero. Energy is wasted. Further, the electric motor / generator is operated as an electric motor and is not used for energy recovery.
【０００４】[0004]
【課題を解決するための手段】上記問題を解決するため
本発明によれば、電動・発電機付ターボチャージャと、
エンジンのクランク軸から直接又はベルト等の動力伝達
手段を経由して駆動され発電機として作動するととも
に、電力の供給により電動機運転を行う交流機とを有す
るエンジンの電動・発電機付ターボチャージャの制御装
置において、エンジンが部分負荷運転であることを検出
するエンジン負荷検出手段と、ターボチャージャのコン
プレッサへの空気流路を完全に遮断し、コンプレッサを
バイパスする吸気流路切換手段と、前記負荷検出手段の
信号を受けて前記吸気流路切換手段を作動させると共
に、前記交流機に電力を供給する制御手段とを有するこ
とを特徴とする電動・発電機付ターボチャージャの制御
装置が提供される。In order to solve the above problems, according to the present invention, a turbocharger with an electric / generator,
Control of a turbocharger with a motor / generator for an engine that has an AC generator that is driven directly from the crankshaft of the engine or via power transmission means such as a belt and that operates as a generator, and that also operates an electric motor by supplying electric power. In the apparatus, engine load detection means for detecting that the engine is in partial load operation, intake flow passage switching means for completely blocking the air flow passage to the compressor of the turbocharger and bypassing the compressor, and the load detection means. The control device for a turbocharger with a motor / generator is provided, which has a control means for actuating the intake flow path switching means in response to the signal of (1) and supplying electric power to the AC machine.
【０００５】さらに、電動・発電機付ターボチャージャ
と、エンジンのクランク軸から直接又はベルト等の動力
伝達手段を経由して駆動され発電機として作動するとと
もに、電力の供給により電動機運転を行う交流機とを有
するエンジンの電動・発電機付ターボチャージャの制御
方法において、エンジンが部分負荷運転であることを検
出し、ターボチャージャのコンプレッサへの空気流路を
完全に遮断し、コンプレッサをバイパスする吸気流路切
換手段を作動させると共に、前記交流機に電力を供給す
ることを特徴とする電動・発電機付ターボチャージャの
制御方法が提供される。Further, a turbocharger with a motor / generator and an alternating current machine which is driven from the crankshaft of the engine directly or via a power transmission means such as a belt to operate as a generator, and which operates a motor by supplying electric power. In a method of controlling a turbocharger with a motor / generator for an engine having an intake airflow that detects that the engine is in partial load operation, completely shuts off the air flow path to the compressor of the turbocharger, and bypasses the compressor. There is provided a method for controlling a turbocharger with an electric / generator, which is characterized in that the electric power is supplied to the AC machine while operating the path switching means.
【０００６】[0006]
【発明の実施の形態】本発明は、上記のように、エンジ
ン低回転等の部分負荷時のように吸入空気の空気過剰率
が高いエンジン運転状態において、ターボチャージャの
コンプレッサ仕事量を零とし、さらにターボチャージャ
の電動・発電機を発電運転してエンジンのエネルギを回
収し、且つ得られた電力により、エンジンの軸を駆動す
るように装着された、交流機を電動機運転することでエ
ンジンを助勢するので燃料消費量を少なくすることがで
きる。BEST MODE FOR CARRYING OUT THE INVENTION As described above, the present invention sets the compressor work amount of a turbocharger to zero in an engine operating state in which the excess air ratio of intake air is high, such as when the engine is at a low engine speed or a partial load. In addition, the turbocharger's motor / generator is operated to generate power, the energy of the engine is recovered, and the obtained electric power assists the engine by operating the AC machine that is mounted to drive the engine shaft. As a result, fuel consumption can be reduced.
【０００７】[0007]
【実施例】以下本発明の実施例を図面に基づいて詳細に
説明する。図１は、本発明の一実施例の構成図である。
まず、本図においてエンジン１にはエンジン１の駆動力
を伝達するベルトを介して駆動されるオルタネータ２
（三相交流機）が設けられている。エンジン１の排気マ
ニホールドにはタービン８が接続され、タービン８とコ
ンプレッサ７の中間に電動・発電機４が設けられてい
る。３はコンプレッサ７に接続され、吸気を冷却するイ
ンタークーラである。オルタネータ２で発電された電力
はインバータ５を経由して電動・発電機４に電力を供給
するように接続されている。インバータ５はコントロー
ラ６により制御され、コントローラ６にはエンジン負荷
センサの信号が入力されている。エンジンの吸気流路に
は、コンプレッサ７への空気を遮断するバルブ９と、エ
アクリーナ１２からコンプレッサ７をバイパスする空気
流路１１とその流路を開閉するバルブ１０が設けられて
いる。Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a block diagram of an embodiment of the present invention.
First, in the figure, an alternator 2 driven by a belt for transmitting the driving force of the engine 1 to the engine 1 is shown.
(Three-phase AC machine) is provided. A turbine 8 is connected to the exhaust manifold of the engine 1, and a motor / generator 4 is provided between the turbine 8 and the compressor 7. An intercooler 3 is connected to the compressor 7 and cools the intake air. The electric power generated by the alternator 2 is connected to the electric motor / generator 4 via the inverter 5 so as to supply the electric power. The inverter 5 is controlled by the controller 6, and the signal of the engine load sensor is input to the controller 6. The intake passage of the engine is provided with a valve 9 that shuts off air to the compressor 7, an air passage 11 that bypasses the compressor 7 from the air cleaner 12, and a valve 10 that opens and closes the passage.
【０００８】まず、本実施例のエンジン部分負荷時以外
の動作について説明をする。排気マニホールドから排気
された排気ガスはタービン８に供給されてタービン８が
回転する。これによりコンプレッサ７及び電動・発電機
４が回転し、電動・発電機４で発電された電力は、イン
バータ５により、直流電力に変換され、バッテリ（図示
せず）を充電する電力となる。また、バルブ９は開、バ
ルブ１０は閉となっておりエアクリーナから吸入された
空気はコンプレッサ７で過給されてインタークーラ３を
経由してエンジン１に供給される。排気マニホールドか
ら排気される排気ガスの量、圧力が低下して、タービン
５の回転が充分でなくなったときには、バッテリからイ
ンバータ５を介して三相交流電力が電動・発電機６に供
給されて電動・発電機６は電動機運転されコンプレッサ
７を回転せしめ吸入空気を過給する。First, the operation of this embodiment other than when the engine is partially loaded will be described. The exhaust gas exhausted from the exhaust manifold is supplied to the turbine 8 and the turbine 8 rotates. As a result, the compressor 7 and the electric motor / generator 4 rotate, and the electric power generated by the electric motor / generator 4 is converted into DC electric power by the inverter 5 and becomes electric power for charging a battery (not shown). Further, the valve 9 is open and the valve 10 is closed, and the air taken in from the air cleaner is supercharged by the compressor 7 and supplied to the engine 1 via the intercooler 3. When the amount and pressure of the exhaust gas exhausted from the exhaust manifold decrease and the rotation of the turbine 5 becomes insufficient, three-phase AC power is supplied from the battery to the electric motor / generator 6 through the inverter 5. The generator 6 is operated by an electric motor to rotate the compressor 7 and supercharge the intake air.
【０００９】次に、エンジン部分負荷時の本実施例の動
作を説明する。図２は、本実施例のエンジン部分負荷時
の作動の一例を示す処理フロー図である。Ｓ１で電動・
発電機が発電し、且つオルタネータが電動機運転中であ
るか否かが判断される。ＹＥＳの場合、次のＳ２でエン
ジンの運転状態が部分負荷であるか否かが判断される。
この判断は図１に示したエンジン負荷センサの信号によ
りなされる。ここでＳ１又はＳ２でＮＯの場合、Ｓ５で
バルブ９を開放し、Ｓ６でバルブ１０を閉じ通常の制御
が行われる。すなわち、コンプレッサのバイパス流路を
閉鎖し、コンプレッサによる過給を有効にする。Ｓ１及
びＳ２共にＹＥＳの場合、Ｓ３でバルブ１０を開放し、
Ｓ４でバルブ９を閉じ、本フローのスタートに戻る。。
すなわち、コンプレッサのバイパス流路を有効にし、コ
ンプレッサによる過給を停止する。Next, the operation of this embodiment when the engine is partially loaded will be described. FIG. 2 is a process flow chart showing an example of the operation of the present embodiment when the engine is partially loaded. Electric in S1
It is determined whether the generator is generating power and the alternator is operating the motor. In the case of YES, it is determined in next S2 whether or not the operating state of the engine is the partial load.
This determination is made based on the signal from the engine load sensor shown in FIG. If NO in S1 or S2, the valve 9 is opened in S5, the valve 10 is closed in S6, and normal control is performed. That is, the bypass passage of the compressor is closed to enable supercharging by the compressor. If both S1 and S2 are YES, open the valve 10 in S3,
The valve 9 is closed in S4, and the process returns to the start of this flow. .
That is, the bypass passage of the compressor is made effective, and supercharging by the compressor is stopped.
【００１０】以上、本発明を上述の実施例によって説明
したが、本発明の主旨の範囲内で種々の変形や応用が可
能であり、これらの変形や応用を本発明の範囲から排除
するものではない。Although the present invention has been described with reference to the above-described embodiments, various modifications and applications are possible within the scope of the gist of the present invention, and these modifications and applications are not excluded from the scope of the present invention. Absent.
【００１１】[0011]
【発明の効果】上述の実施例のように本発明によれば、
エンジン低回転等の部分負荷時のように吸入空気の空気
過剰率が高いエンジン運転状態において、ターボチャー
ジャのコンプレッサ仕事量を零とし、さらにターボチャ
ージャの電動・発電機を発電運転して、得られた電力に
よりエンジンの軸を駆動するように装着された交流機を
電動機運転することでエンジンのエネルギを回収し、且
つエンジンを助勢するので燃料消費量を少なくすること
ができる。According to the present invention as in the above embodiments,
It is obtained by setting the compressor work of the turbocharger to zero and operating the turbocharger's motor / generator to generate power when the engine is operating with a high excess air ratio of the intake air, such as when the engine is running at a low load. By driving the AC machine mounted so as to drive the shaft of the engine with the electric power, the energy of the engine is recovered and the engine is assisted, so that the fuel consumption can be reduced.
【図１】本発明の実施例を示すブロック線図である。FIG. 1 is a block diagram showing an embodiment of the present invention.
【図２】本発明の実施例の処理フロー図である。FIG. 2 is a processing flow chart of the embodiment of the present invention.
１…エンジン、２…オルタネータ、３…インタークー
ラ、４…電動・発電機、５…インバータ、６…コントロ
ーラ、７…コンプレッサ、８…タービン、９…バルブ、
１０…バルブ1 ... Engine, 2 ... Alternator, 3 ... Intercooler, 4 ... Motor / generator, 5 ... Inverter, 6 ... Controller, 7 ... Compressor, 8 ... Turbine, 9 ... Valve,
10 ... Valve
Claims (2)
ジンのクランク軸から直接又はベルト等の動力伝達手段
を経由して駆動され発電機として作動するとともに、電
力の供給により電動機運転を行う交流機とを有するエン
ジンの電動・発電機付ターボチャージャの制御装置にお
いて、 エンジンが部分負荷運転であることを検出するエンジン
負荷検出手段と、ターボチャージャのコンプレッサへの
空気流路を完全に遮断し、コンプレッサをバイパスする
吸気流路切換手段と、前記負荷検出手段の信号を受けて
前記吸気流路切換手段を作動させると共に、前記交流機
に電力を供給する制御手段とを有することを特徴とする
電動・発電機付ターボチャージャの制御装置。1. A turbocharger with an electric / generator and an AC machine which is driven as a generator directly from a crankshaft of an engine or via a power transmission means such as a belt, and which operates a motor by supplying electric power. In a control device for a turbocharger with an electric / generator of an engine having an engine load detecting means for detecting that the engine is in a partial load operation and an air flow path to the compressor of the turbocharger are completely cut off, And an intake air flow path switching means for bypassing the load, and a control means for operating the intake air flow path switching means in response to a signal from the load detection means and for supplying electric power to the AC machine. Control device for turbocharger with generator.
ジンのクランク軸から直接又はベルト等の動力伝達手段
を経由して駆動され発電機として作動するとともに、電
力の供給により電動機運転を行う交流機とを有するエン
ジンの電動・発電機付ターボチャージャの制御方法にお
いて、 エンジンが部分負荷運転であることを検出し、ターボチ
ャージャのコンプレッサへの空気流路を完全に遮断し、
コンプレッサをバイパスする吸気流路切換手段を作動さ
せると共に、前記交流機に電力を供給することを特徴と
する電動・発電機付ターボチャージャの制御方法。2. A turbocharger with an electric / generator and an alternating current machine which is driven by a crankshaft of an engine directly or via a power transmission means such as a belt to operate as a generator, and which operates a motor by supplying electric power. In a method for controlling a turbocharger with an electric motor / generator for an engine having, detecting that the engine is in partial load operation, completely shutting off the air flow path to the compressor of the turbocharger,
A method for controlling a turbocharger with an electric / generator, which comprises operating an intake passage switching means that bypasses a compressor and supplying electric power to the AC machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17122495A JP3500782B2 (en) | 1995-07-06 | 1995-07-06 | Control device for turbocharger with motor / generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17122495A JP3500782B2 (en) | 1995-07-06 | 1995-07-06 | Control device for turbocharger with motor / generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0921323A JPH0921323A (en) | 1997-01-21 |
| JP3500782B2 true JP3500782B2 (en) | 2004-02-23 |
Family
ID=15919353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17122495A Expired - Fee Related JP3500782B2 (en) | 1995-07-06 | 1995-07-06 | Control device for turbocharger with motor / generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3500782B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2804178B1 (en) * | 2000-01-25 | 2002-10-04 | Renault | IMPROVED EFFICIENCY SUPERCHARGE SYSTEM AND METHOD |
| US8143732B2 (en) * | 2008-12-15 | 2012-03-27 | Caterpillar Inc. | Stationary genset power system having turbo-compounding |
| US10508590B2 (en) * | 2017-02-07 | 2019-12-17 | Kohler Co. | Forced induction engine with electric motor for compressor |
-
1995
- 1995-07-06 JP JP17122495A patent/JP3500782B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0921323A (en) | 1997-01-21 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |