JPH03202632A - Control device for turbo-charger with rotary electric machine - Google Patents
Control device for turbo-charger with rotary electric machineInfo
- Publication number
- JPH03202632A JPH03202632A JP1341011A JP34101189A JPH03202632A JP H03202632 A JPH03202632 A JP H03202632A JP 1341011 A JP1341011 A JP 1341011A JP 34101189 A JP34101189 A JP 34101189A JP H03202632 A JPH03202632 A JP H03202632A
- Authority
- JP
- Japan
- Prior art keywords
- engine
- exhaust
- electric machine
- exhaust gas
- turbocharger
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 2
- 239000000446 fuel Substances 0.000 abstract description 3
- 230000006866 deterioration Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000881 depressing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000015654 memory Effects 0.000 description 1
Landscapes
- Supercharger (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は回転電機付ターボチャージャを備えたエンジン
のフライングブーストアップ時にエンジン排圧を低減し
ようとする回転電機付ターボチャージャの制御装置に関
する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a control device for a turbocharger with a rotating electrical machine that attempts to reduce engine exhaust pressure during flying boost-up of an engine equipped with a turbocharger with a rotating electrical machine.
（従来の技術）
近年、エンジンからの排気エネルギーによってタービン
を駆動し、このタービントルクによりコンプレッサを作
動させてエンジンに過給気を圧送し、エンジン出力を増
大させるターボチャージャが実用化されている。(Prior Art) In recent years, turbochargers have been put into practical use that drive a turbine using exhaust energy from an engine, and use the turbine torque to operate a compressor to forcefully feed supercharged air to the engine to increase engine output.
そして、この種のターボチャージャに電動−発電機とな
る回転電機を取付け、エンジンの運転状態に応じてこの
回転電機を電動機または発電機として作動させようとす
る提案が、特開昭６０−１９５３２９号公報に内燃機関
のターボチャージャとして開示されている。Japanese Patent Laid-Open No. 60-195329 proposed attaching a rotating electrical machine that serves as an electric generator to this type of turbocharger, and operating this rotating electrical machine as a motor or a generator depending on the operating state of the engine. It is disclosed in the official gazette as a turbocharger for an internal combustion engine.
（発明が解決しようとする課題）
ターボチャージャを備えたエンジンを搭載した車両では
、その発進に際してアクセルペダルの踏込み直後はエン
ジン回転数がすぐには上昇しないため、排気ガス量が少
なくターボチャージャによる過給圧も低いので、エンジ
ン回転数の急上昇が望めない。(Problem to be solved by the invention) In a vehicle equipped with an engine equipped with a turbocharger, the engine speed does not rise immediately after pressing the accelerator pedal when starting the vehicle, so the amount of exhaust gas is small and the overload caused by the turbocharger is reduced. Since the supply pressure is also low, it is not possible to expect a sudden increase in engine speed.
このため、上述の公開公報における提案では、回転電機
を車両の発進前に予め電動機作動させ、コンプレッサの
圧気作動を付勢してブースト圧を高める、いわゆるフラ
イングブーストアップを行ってエンジンへの過給圧を高
めているが、排気ａ］ｔが一定でタービン回転数を上昇
させるので、第２図のタービン特性より明らかなように
、エンジン排圧（タービン人口圧力）の上昇が生じるこ
とになる。したがって、このような状態ではフライング
ブーストアップ時には燃費が悪化したり、最悪の場合に
はエンジンストールを生じる虞がある。For this reason, in the proposal in the above-mentioned publication, the rotating electric machine is operated in advance before the vehicle starts, and the boost pressure is increased by energizing the compressor's pneumatic operation, which is a so-called flying boost-up, which increases the supercharging pressure to the engine. However, since the turbine rotational speed is increased while the exhaust gas a]t is constant, the engine exhaust pressure (turbine population pressure) increases, as is clear from the turbine characteristics shown in FIG. Therefore, in such a state, there is a risk that the fuel efficiency will deteriorate when boosting the engine during flying boost, or in the worst case, engine stalling may occur.
本発明はこのような問題に鑑みてなされたものであり、
その目的はフライングブーストアップ時にエンジン排圧
の上昇を抑えて従来の欠点を解消しようとする回転電機
付ターボチャージャの制御装置をｔ足了共することにあ
る。The present invention was made in view of such problems,
The purpose is to develop a control system for a turbocharger with a rotating electric machine that suppresses the increase in engine exhaust pressure during flying boost and eliminates the drawbacks of the conventional technology.
（課題を解決するための手段）
本発明によれば、ターボチャージャに配置した回転電機
を電！ｌ］駆動し、車両の発進前に過給気を増圧せしめ
る回転電機付ターボチャージャの制御装置において、ア
クセルペダルの踏込みを検出する検出手段と、エンジン
からの排気を直接に外気へ放出する排気バイパス管と、
該排気バイパス管とターボチャージャへの排気流路とを
切換える切換手段と、前記検出手段からの信号に応じ該
切換手段を制御する制御手段とを有する回転電機付ター
ボチャージャの制御装置が提供される。(Means for Solving the Problems) According to the present invention, the rotating electric machine disposed in the turbocharger can be powered up! l] In a control device for a turbocharger with a rotating electrical machine that drives the vehicle and increases the pressure of supercharged air before starting the vehicle, there is a detection means that detects depression of the accelerator pedal, and an exhaust that discharges exhaust gas from the engine directly to the outside air. bypass pipe,
A control device for a turbocharger with a rotating electric machine is provided, which includes a switching means for switching between the exhaust bypass pipe and an exhaust flow path to the turbocharger, and a control means for controlling the switching means in response to a signal from the detection means. .
（作用）
本発明では、アクセルペダルの踏込状態によって、エン
ジンのフライングブーストアップを検出すると、排気流
路に設けた切換手段により切換バルブを排気バイパス管
側に切換えて、排気ガスを直接に外気に放出させるので
、回転電機の電動駆動によってタービン回転数が上昇し
ても、エンジン排圧が抑制されることになる。(Function) In the present invention, when a flying boost up of the engine is detected based on the depression state of the accelerator pedal, the switching means provided in the exhaust flow path switches the switching valve to the exhaust bypass pipe side, and exhaust gas is directly released to the outside air. Therefore, even if the turbine rotational speed increases due to the electric drive of the rotating electrical machine, the engine exhaust pressure is suppressed.
（実施例）
つぎに本発明の実施例について図面を用いて詳細に説明
する。(Example) Next, an example of the present invention will be described in detail using the drawings.
第１図は本発明の一実施例を示す構成ブロック図である
。FIG. 1 is a block diagram showing an embodiment of the present invention.
同図において、１はエンジンで、その排気管１１と吸気
管１２とにはターボチャージャ２が接続されており、該
ターボチャージャ２はエンジン１の排気ガスエネルギー
により駆動されるタービン２１と、該タービントルクに
より駆動されるコンプレッサ２２とを備え、コンプレッ
サ２２の作動による圧気は吸気管１２を介して過給気と
してエンジン１に供給されるように構成されている。In the figure, 1 is an engine, and a turbocharger 2 is connected to an exhaust pipe 11 and an intake pipe 12 of the engine. The compressor 22 is driven by torque, and the compressor air generated by the operation of the compressor 22 is supplied to the engine 1 through the intake pipe 12 as supercharging air.
１４は排気バイパス管で、ターボチャージャ２への排気
管１１の途中に分岐して設けられ、排気ガスを直接に外
気へ導くバイブであり、その分岐部には切換バルブ１５
が配置されている。Reference numeral 14 denotes an exhaust bypass pipe, which is provided by branching in the middle of the exhaust pipe 11 to the turbocharger 2, and is a vibrator that directly guides the exhaust gas to the outside air.
is located.
１６はバルブアクチュエータで切換バルブ１５を切換作
動させるものであり、該バルブアクチュエータ１６には
後述するコントローラからの指令ラインが接続されてい
る。Reference numeral 16 denotes a valve actuator for switching the switching valve 15, and a command line from a controller to be described later is connected to the valve actuator 16.
３は電動−発電機となる回転電機であり、その回転子は
夕〜ビン２１の回転軸に直結されている。そしてエンジ
ン１からの排気ガスエネルギーが大きいときは、タービ
ントルクによりコンプレッサ２２を駆動してブースト圧
力を高めるとともに、回転子も駆動して回転電機３を発
電機として作動させ、排気エネルギーを電気エネルギー
として回収させるものである。また、エンジン１の急発
進時や、エンジン１が低速高負荷時には回転電機３に電
力を供給することにより電動機として作動させ、そのト
ルクによりコンプレッサ２２を駆動して、圧気をエンジ
ン１に供給する。なお、１３はブースト圧センサで、エ
ンジン１への過給気の圧力を検出してコントローラ４に
送信するものである。3 is a rotating electrical machine serving as an electric generator, and its rotor is directly connected to the rotating shaft of the spindle 21. When the exhaust gas energy from the engine 1 is large, the compressor 22 is driven by the turbine torque to increase the boost pressure, and the rotor is also driven to operate the rotating electric machine 3 as a generator, converting the exhaust energy into electrical energy. It is to be collected. Further, when the engine 1 suddenly starts or when the engine 1 is running at a low speed and under a high load, the rotary electric machine 3 is operated as an electric motor by supplying electric power, and its torque drives the compressor 22 to supply pressurized air to the engine 1. Note that 13 is a boost pressure sensor that detects the pressure of supercharging air to the engine 1 and transmits it to the controller 4.
５はアクセルペダルで、該ペダルの踏込量を検出する検
出手段となる踏込量センサ５１が設けられ、該踏込量セ
ンサ５１からの信号はコントローラ４に入力されるよう
に結線されている。Reference numeral 5 denotes an accelerator pedal, which is provided with a depression amount sensor 51 serving as a detection means for detecting the amount of depression of the pedal, and is wired so that a signal from the depression amount sensor 51 is inputted to the controller 4.
６はバッテリであり、発電作動時の回転電機３からの発
電電力を電力変換器６１を介して蓄電したり、また、エ
ンジン１の急発進時や低速高負荷にはバッテリ６からの
電力により回転篭ｌａ３を電動駆動してコンプレッサ２
２Ｃよる圧気をエンジン１に過給するものである。なお
、回転電機３からはその固定子の逆起電力に対応する周
波数信号がコントローラ４に人力され、この信号によっ
てターボチャージャ２の回転数が検知できるものである
。Reference numeral 6 denotes a battery, which stores the generated power from the rotating electric machine 3 during power generation operation via the power converter 61, and also uses the power from the battery 6 to rotate when the engine 1 suddenly starts or when a low speed and high load occurs. Compressor 2 is driven by electric drive of basket la3.
The engine 1 is supercharged with 2C pressurized air. Note that a frequency signal corresponding to the back electromotive force of the stator of the rotating electrical machine 3 is manually inputted to the controller 4, and the rotation speed of the turbocharger 2 can be detected based on this signal.
電力変換器６１はインバータとコンバータとを有する交
直両方向変換器からなり、発電作動時の回転電機３の交
流出力を人力してバッテリ６を充電する直流電力に変換
したり、バッテリ６の電力を回転電機３に供給するとき
はその直流電力をコントローラ４からの信号による所定
の交流電力に変換するように構成されている。The power converter 61 is composed of an AC/DC bidirectional converter having an inverter and a converter, and converts the AC output of the rotating electric machine 3 during power generation into DC power for charging the battery 6 manually, or converts the power of the battery 6 into rotating power. When supplied to the electric machine 3, the DC power is converted into predetermined AC power according to a signal from the controller 4.
コントローラ４はマイクロコンピュータからなり、演算
処理を行う中央制御装置、演算処理手順や制御手順など
を格納する各種メモリ、入／出力回路などを備えており
、入力回路には前記の各種センサなどの信号ラインが接
続され、出力回路には電力変換器６１への指令ラインが
結線されている。そして、踏込量センサ５１、ブースト
圧センサ１３などからの信号が人力されると、電力変換
器６１やバルブアクチュエータ１６に指令信号が発せさ
れ、回転電機３に電力を供給したり、切換バルブ１５の
切換制御を行うように構成されている。The controller 4 is composed of a microcomputer, and is equipped with a central control unit that performs arithmetic processing, various memories that store arithmetic processing procedures and control procedures, input/output circuits, etc., and the input circuit receives signals from the various sensors mentioned above. A command line to the power converter 61 is connected to the output circuit. When signals from the pedal depression sensor 51, boost pressure sensor 13, etc. are input manually, command signals are issued to the power converter 61 and valve actuator 16, which supply power to the rotating electric machine 3 and control the switching valve 15. It is configured to perform switching control.
つぎに、このように構成された本実施例の作動を説明す
る。Next, the operation of this embodiment configured as described above will be explained.
車両の発進時に運転者によりアクセルペダル５が踏込ま
れると、踏込量センサ５１からの信号がコントローラ４
に人力される。When the driver depresses the accelerator pedal 5 when starting the vehicle, a signal from the depressing amount sensor 51 is sent to the controller 4.
is man-powered.
ここでコントローラ４は踏込量センサ５１の信号によっ
てフライングブーストアップを実行する状態と判断する
と、電力変換器６１に指令しバッテリ６からの電力を所
定の交流電力に変換して回転電機に供給するように発令
するとともに、バルブアクチュエータ１６にも発令して
、切換バルブ１５を作動させてエンジン１からの排気ガ
スを排気バイパス管１４に通じるように指令する。Here, when the controller 4 determines that the flying boost-up is to be executed based on the signal from the pedal depression amount sensor 51, it instructs the power converter 61 to convert the power from the battery 6 into predetermined AC power and supply it to the rotating electric machine. At the same time, it also issues a command to the valve actuator 16 to operate the switching valve 15 and direct the exhaust gas from the engine 1 to the exhaust bypass pipe 14.
このため、バッテリ６からの電力により電動作動する回
転電機３はコンプレッサ２２を高速に駆動じて、回転数
が上昇する前のエンジン１に吸気を圧送してブースト圧
を高め、発進時のエンジントルクを増大させることにな
り、一方、タービン２１側においてはエンジン１からの
排気ガスエネルギーは排気バイパス管１４によって外気
に放出され、回転電機３の電動駆動によりタービン２１
の回転数が上昇しても、エンジン排圧の増加が抑制され
ることになる。For this reason, the rotating electric machine 3, which is electrically operated by electric power from the battery 6, drives the compressor 22 at high speed to forcefully send intake air to the engine 1 before the rotation speed increases, thereby increasing the boost pressure and increasing the engine torque at the time of starting. On the other hand, on the turbine 21 side, the exhaust gas energy from the engine 1 is released to the outside air through the exhaust bypass pipe 14, and the electric drive of the rotating electric machine 3 causes the turbine 21 to increase.
Even if the engine speed increases, the increase in engine exhaust pressure is suppressed.
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が可能であり、これらの
変形は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 above with reference to the above embodiments, various modifications can be made within the scope of the gist of the present invention, and these modifications are not excluded from the scope of the present invention.
（発明の効果）
本発明によれば、エンジンとターボチャージャとを連結
する排気管の途中に、排気ガスを直接に外気へ導く排気
バイパス管を分岐して設け、該分岐部分に切換バルブを
配置してエンジンのフライングブーストアップ時には排
気ガスを外気に導くので、回転電機の電動駆動によって
タービンの回転数が上昇しても、エンジンの排圧の増加
が抑えられて、エンジンの燃費の悪化やエンジンストー
ルが防止されるという効果が得られる。(Effects of the Invention) According to the present invention, an exhaust bypass pipe that directly guides exhaust gas to the outside air is branched in the middle of the exhaust pipe that connects the engine and the turbocharger, and a switching valve is disposed at the branched part. When the engine's flying boost is increased, the exhaust gas is guided to the outside air, so even if the rotation speed of the turbine increases due to the electric drive of the rotating electric machine, the increase in engine exhaust pressure is suppressed, preventing deterioration of engine fuel efficiency and engine stall. The effect is that this is prevented.
第１図は本発明の一実施例を示す構成ブロック図、第２
図はタービンにおける圧力比と修正流量との関連特性を
示す曲線図である。
１・・・エンジン、２・・・ターボチャージャ、３・・
・回転電機、４・・・コントローラ、５・・・アクセル
ペダル、１１・・・排気管、１４・・・排気バイパス管
、１５・・・切換バルブ、５１・・・踏込量センサ。FIG. 1 is a configuration block diagram showing one embodiment of the present invention, and FIG.
The figure is a curve diagram showing the related characteristics between the pressure ratio and the corrected flow rate in the turbine. 1...Engine, 2...Turbocharger, 3...
- Rotating electric machine, 4... Controller, 5... Accelerator pedal, 11... Exhaust pipe, 14... Exhaust bypass pipe, 15... Switching valve, 51... Depressing amount sensor.
Claims (1)
両の発進前に過給気を増圧せしめる回転電機付ターボチ
ャージャの制御装置において、アクセルペダルの踏込み
を検出する検出手段と、エンジンからの排気を直接に外
気へ放出する排気バイパス管と、該排気バイパス管とタ
ーボチャージャへの排気流路とを切換える切換手段と、
前記検出手段からの信号に応じ該切換手段を制御する制
御手段とを有することを特徴とする回転電機付ターボチ
ャージャの制御装置。A control device for a turbocharger with a rotating electrical machine that electrically drives the rotating electrical machine located in the turbocharger and increases the pressure of supercharging air before starting the vehicle, includes a detection means for detecting depression of the accelerator pedal and a detection means for detecting the depression of the accelerator pedal. an exhaust bypass pipe that discharges directly to the outside air; a switching means that switches between the exhaust bypass pipe and the exhaust flow path to the turbocharger;
A control device for a turbocharger with a rotating electric machine, comprising: a control means for controlling the switching means in response to a signal from the detection means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1341011A JP2987859B2 (en) | 1989-12-28 | 1989-12-28 | Control device for turbocharger with rotating electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1341011A JP2987859B2 (en) | 1989-12-28 | 1989-12-28 | Control device for turbocharger with rotating electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03202632A true JPH03202632A (en) | 1991-09-04 |
| JP2987859B2 JP2987859B2 (en) | 1999-12-06 |
Family
ID=18342387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1341011A Expired - Lifetime JP2987859B2 (en) | 1989-12-28 | 1989-12-28 | Control device for turbocharger with rotating electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2987859B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998016728A1 (en) * | 1996-10-15 | 1998-04-23 | Turbodyne Systems, Inc. | Motor-generator assisted turbocharging systems for use with internal combustion engines and control systems therefor |
| US6233935B1 (en) * | 1999-12-07 | 2001-05-22 | Ford Global Technologies, Inc. | Method and apparatus for starting an engine having a turbocharger |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60195329A (en) * | 1984-03-17 | 1985-10-03 | Isuzu Motors Ltd | Turbocharger for internal-combustion engine |
| JPS62197728U (en) * | 1986-06-05 | 1987-12-16 | ||
| JPS6371524A (en) * | 1986-09-11 | 1988-03-31 | Kubota Ltd | Supercharging device for vehicle engine with exhaust turbine supercharger |
-
1989
- 1989-12-28 JP JP1341011A patent/JP2987859B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60195329A (en) * | 1984-03-17 | 1985-10-03 | Isuzu Motors Ltd | Turbocharger for internal-combustion engine |
| JPS62197728U (en) * | 1986-06-05 | 1987-12-16 | ||
| JPS6371524A (en) * | 1986-09-11 | 1988-03-31 | Kubota Ltd | Supercharging device for vehicle engine with exhaust turbine supercharger |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5906098A (en) * | 1996-07-16 | 1999-05-25 | Turbodyne Systems, Inc. | Motor-generator assisted turbocharging systems for use with internal combustion engines and control method therefor |
| WO1998016728A1 (en) * | 1996-10-15 | 1998-04-23 | Turbodyne Systems, Inc. | Motor-generator assisted turbocharging systems for use with internal combustion engines and control systems therefor |
| US6233935B1 (en) * | 1999-12-07 | 2001-05-22 | Ford Global Technologies, Inc. | Method and apparatus for starting an engine having a turbocharger |
| USRE38671E1 (en) * | 1999-12-07 | 2004-12-21 | Visteon Global Technologies, Inc. | Method and apparatus for starting an engine having a turbocharger |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2987859B2 (en) | 1999-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5406797A (en) | Drive system for turbocharger with rotary electric machine | |
| JP2526100B2 (en) | Supercharger control device | |
| US4958708A (en) | Drive system for turbocharger with rotary electric machine | |
| JPH03117628A (en) | Control device for turbocharger with rotary electric machine | |
| JPH0584810B2 (en) | ||
| JPH0230953A (en) | Control device for supercharger | |
| JPS63302131A (en) | Control device for turbocharger provided with rotary electric machine | |
| JPH0932569A (en) | Engine having exhaust gas turbine for vehicle | |
| JPH03202633A (en) | Control device for turbo-charger with rotary electric machine | |
| JP2884725B2 (en) | Control device for twin turbocharger | |
| JP2987859B2 (en) | Control device for turbocharger with rotating electric machine | |
| JPH10159576A (en) | Control device for turbocharger with dynamo-electric machine | |
| JPH04342828A (en) | Control device for turbocharger provided with rotary electric equipment | |
| JPH0347439A (en) | Gasoline engine with supercharger | |
| JPH05141254A (en) | Braking force control device | |
| JP3092260B2 (en) | Control device for turbocharger with rotating electric machine | |
| JPH0337328A (en) | Controller for turbocharger | |
| JPS6226334A (en) | Controller for turbocharger | |
| JP3055143B2 (en) | Control device for turbocharger with rotating electric machine | |
| JPH0711965A (en) | Control device for turbocharger with rotating electric machine | |
| JP3208872B2 (en) | Control device for rotating electric machine for turbocharger | |
| JPH0412130A (en) | Turbocharger with electric rotary machine | |
| JPH03197240A (en) | Automatic speed change control device | |
| JPS6293423A (en) | Energy recovery equipment for turbo-compound engine | |
| JP2775882B2 (en) | Control device for turbocharger with rotating electric machine |