JP2805921B2 - Vehicle power generation system - Google Patents
Vehicle power generation systemInfo
- Publication number
- JP2805921B2 JP2805921B2 JP1317615A JP31761589A JP2805921B2 JP 2805921 B2 JP2805921 B2 JP 2805921B2 JP 1317615 A JP1317615 A JP 1317615A JP 31761589 A JP31761589 A JP 31761589A JP 2805921 B2 JP2805921 B2 JP 2805921B2
- Authority
- JP
- Japan
- Prior art keywords
- generator
- hydraulic
- hydraulic motor
- load
- power generation
- 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
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
- F01P7/044—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using hydraulic drives
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Eletrric Generators (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、定格外の電圧で駆動される車載の電気負荷
に給電するための車両用発電システムに関する。Description: TECHNICAL FIELD The present invention relates to a vehicular power generation system for supplying electric power to a vehicle-mounted electric load that is driven by an unrated voltage.
〔従来の技術〕 車載の電気負荷はバッテリヘッドライト等の様に定格
としては一般に12V（一定）であるため、この種の負荷
に給電する交流発電機も該電圧で設定されている。近
年、車両の安全性、操作性等の向上を図るべくヒーティ
ッドウィンドシールド等の電気負荷が備えられており、
この種の定格以外の電圧で作動する電気負荷へ給電する
発電システムの需要が高まってきた。[Prior Art] Since an electric load mounted on a vehicle is generally rated at 12 V (constant) like a battery headlight or the like, an AC generator that supplies power to this type of load is also set at the voltage. In recent years, electric loads such as a heated windshield have been provided to improve vehicle safety and operability.
There is a growing demand for power generation systems that supply electrical loads operating at voltages of this type other than rated.
このような発電システムとしては、定格電圧で給電す
る第１の発電機以外に第２の発電機を設けこの発電機を
プーリで駆動し電気負荷に給電を行うものや、第１の発
電機の出力を変圧器で変圧して電気負荷に給電するもの
が提案されている。As such a power generation system, a second generator is provided in addition to the first generator that supplies power at a rated voltage, and this generator is driven by a pulley to supply power to an electric load. There has been proposed a device in which an output is transformed by a transformer to supply power to an electric load.
また油圧装置を利用して高電圧電源を提供するものと
しては特開昭59−176421号公報に提案された装置があ
る。この装置は自動車エンジンの出力により油圧ポンプ
を介して油圧モータを駆動させる。油圧モータの出力が
プーリ及びベルトを介して交流発電機を作動させること
により交流電源を供給している。Japanese Patent Application Laid-Open No. 59-176421 discloses an apparatus that provides a high-voltage power supply using a hydraulic device. This device drives a hydraulic motor via a hydraulic pump by the output of an automobile engine. The output of the hydraulic motor supplies AC power by operating an AC generator via a pulley and a belt.
しかしながら、定格電圧以外の負荷の為に第２の発電
機を搭載して不要時に無負荷駆動することはエネルギー
効率上好しいことではなく、一方変圧器を使用すること
はシステムの大型化、重量増加を招くことになる。However, mounting a second generator for a load other than the rated voltage and driving it without load when it is not necessary is not favorable in terms of energy efficiency. On the other hand, using a transformer increases the size and weight of the system. This will lead to an increase.
本発明は上記課題に鑑みてなされたもので、その目的
としては発電システムの大型化及び重量増加を招くこと
なく効率的に油圧負荷及び油圧モータを駆動することが
可能な車両用発電システムを提供することにある。The present invention has been made in view of the above problems, and has as its object to provide a vehicle power generation system capable of efficiently driving a hydraulic load and a hydraulic motor without increasing the size and weight of the power generation system. Is to do.
上記課題を解決するために、本発明の車両用発電シス
テムは、エンジンにより駆動され定格の電気負荷に給電
する第１の発電機と、車載の油圧ポンプにより駆動され
る油圧モータと、前記油圧モータにより作動される第２
の発電機と、前記第２の発電機により給電され前記電気
負荷よりも高い電圧で駆動される加熱装置と、前記油圧
ポンプにより駆動される油圧負荷と、前記油圧ポンプか
ら前記油圧モータ及び前記油圧負荷への給油制御を行う
制御手段と、を備える。In order to solve the above problems, a power generation system for a vehicle according to the present invention includes: a first generator driven by an engine to supply power to a rated electric load; a hydraulic motor driven by an on-board hydraulic pump; Actuated by the second
A heating device powered by the second generator and driven at a voltage higher than the electric load; a hydraulic load driven by the hydraulic pump; and the hydraulic motor and the hydraulic pressure from the hydraulic pump. Control means for controlling refueling of the load.
上記構成において、前記油圧モータ及び前記油圧負荷
の所要油量に応じて制御手段が油圧ポンプからの送油を
制御する。In the above configuration, the control means controls oil supply from a hydraulic pump according to a required oil amount of the hydraulic motor and the hydraulic load.
以下、本発明の実施例を添付図面に基づき説明する。
第１図は本発明が適用される車両用発電システム１の概
要図である。図中、２は油圧ポンプ、３は油圧モータ、
４は発電機、５は発電機４により給電されるヒーティッ
ドウィンドシールド等の高電圧負荷、６はパワステギヤ
ボックス、７は冷却ファン用油圧モータ、８は優先弁、
９は切替弁、10は電気制御ユニット、11はオイルタンク
である。Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a vehicle power generation system 1 to which the present invention is applied. In the figure, 2 is a hydraulic pump, 3 is a hydraulic motor,
4 is a generator, 5 is a high voltage load such as a heated windshield fed by the generator 4, 6 is a power steering gear box, 7 is a hydraulic motor for a cooling fan, 8 is a priority valve,
9 is a switching valve, 10 is an electric control unit, and 11 is an oil tank.
車両用エンジンの出力により作動させられ油圧回路を
構成する油圧ポンプ２の下流側には、優先弁８及び切替
弁９により各々給油制御されるパワステボックス６及び
冷却ファン用油圧モータ７と油圧モータ３が並列に接続
されている。電気制御ユニット10は、パワステギヤボッ
クス６、冷却ファン用油圧モータ７及び油圧モータ３の
作動状態を検出して優先弁８及び切替弁９に対し適宜開
弁制御を行うものである。油圧モータ３は発電機４と一
体的に構成されている。その構造の一例としては、発電
機４の前面側（駆動力入力側）に油圧モータ３が取り付
けられ、油圧モータ３の回転軸と発電機４の回転軸とを
図示しないスプライン等のカップリングを使用して連結
している。このように油圧モータ３及び発電機４を構成
することにより、発電機４を駆動するためのプーリが不
要になり搭載性の向上を図ることができる。すなわち、
第２図に示すように非常に簡単な構成でクランクプーリ
12からアイドラ16〜18を介して油圧ポンプ２、発電機13
（通常の電圧負荷に給電）、A/Cコンプレッサ14、スー
パーチャージャー15の駆動が可能になり、エンジンルー
ム内における搭載性が向上する。また、高電圧負荷５に
給電が必要な時のみ（例えば始動時のヒーティッドウィ
ンドシールド）油圧モータ３にオイルを供給すればよ
く、不要時の駆動力がない為効率を向上させることが可
能になる。Downstream of the hydraulic pump 2 that is operated by the output of the vehicle engine and constitutes a hydraulic circuit, a power steering box 6, a cooling fan hydraulic motor 7, and a hydraulic motor 3, each of which is controlled by a priority valve 8 and a switching valve 9 for refueling. Are connected in parallel. The electric control unit 10 detects the operating states of the power steering gear box 6, the cooling fan hydraulic motor 7, and the hydraulic motor 3, and performs appropriate valve opening control on the priority valve 8 and the switching valve 9. The hydraulic motor 3 is formed integrally with the generator 4. As an example of the structure, the hydraulic motor 3 is attached to the front side (the driving force input side) of the generator 4, and the rotation axis of the hydraulic motor 3 and the rotation axis of the generator 4 are connected by a coupling such as a spline (not shown). Use and concatenate. By configuring the hydraulic motor 3 and the generator 4 in this manner, a pulley for driving the generator 4 is not required, and the mountability can be improved. That is,
As shown in FIG. 2, the crank pulley has a very simple configuration.
Hydraulic pump 2, generator 13 from 12 through idlers 16-18
(Power supply to normal voltage load), A / C compressor 14 and supercharger 15 can be driven, and the mountability in the engine room is improved. Also, it is sufficient to supply oil to the hydraulic motor 3 only when power is required to be supplied to the high-voltage load 5 (for example, a heated windshield at the time of starting), and it is possible to improve efficiency because there is no driving force when unnecessary. Become.
上記の如く構成された油圧回路においてパワーステア
リングハンドルを操作する場合には、電気制御ユニット
10が優先弁８を作動させてギヤボックス６に所要のオイ
ル（流量、圧力）を供給し、その余剰のオイルにて冷却
ファン用モータ７あるいは油圧モータ３を駆動する。こ
の動作（操舵）は短時間の為、他の補機の機能が発生す
る恐れはない。また、ヒーティッドウィンドシールドの
様に始動時のみに給電する発電機４は、エンジン・冷却
水が加熱され冷却ファン用モータ７の駆動が必要な時に
は殆んど不要となるので、例えば走行時には切替弁９に
て必要な流量を冷却ファン用油圧モータ７に供給すれば
よい。従ってオイルは上記補機全てに同時に供給する必
要がない為、個々の油圧モータ6,7,3の必要とする定格
油量の合計よりも小さな容量の油圧ポンプ２を装備する
ことで該油圧システムを充分に駆動することが可能とな
る。すなわち油圧ポンプ２の容量は一番大きな油圧モー
タの定格油量以上あればよい。When the power steering handle is operated in the hydraulic circuit configured as described above, the electric control unit is used.
10 operates the priority valve 8 to supply the required oil (flow rate and pressure) to the gear box 6, and drives the cooling fan motor 7 or the hydraulic motor 3 with the excess oil. Since this operation (steering) is performed in a short time, there is no possibility that the functions of other auxiliary machines will occur. In addition, the generator 4 that supplies power only at the time of starting, such as a heated windshield, is almost unnecessary when the engine / cooling water is heated and the driving of the cooling fan motor 7 is required. The required flow rate may be supplied to the hydraulic motor 7 for the cooling fan by the valve 9. Therefore, since it is not necessary to supply oil to all of the above-mentioned auxiliary machines at the same time, the hydraulic system can be provided by installing the hydraulic pump 2 having a capacity smaller than the sum of the rated oil amounts required by the individual hydraulic motors 6, 7, and 3. Can be sufficiently driven. That is, the capacity of the hydraulic pump 2 only needs to be equal to or larger than the rated oil amount of the largest hydraulic motor.
次にラジエタ水温による発電機４の出力制御について
説明する。第３図は、本発明が適用される車両用発電シ
ステム１に於て定格外の電気負荷（例えばヒーティッド
ウィンドシールド）に対して給電制御を行うための電気
回路である。第１図と同一の構成部材には同一符号を符
す。図中、20〜27は抵抗、30はラジエタ水温が高くなる
と抵抗値が増大する水温検出用ポジスタ、31〜33はトラ
ンジスタ、34はツェナーダイオード、35はダイオード、
40は発電機４の励磁コイル、50は比較器、60はバッテリ
である。コイル40、コイル40の逆起電力を吸収するダイ
オード35、トランジスタ32〜33、抵抗25〜27、及びツェ
ナーオード34により発電機４のレギュレータを構成して
いる。すなわち、発電機４の出力電圧が低い場合には、
ツェナーダイオード34は導通しないため、トランジスタ
32がオンになりコイル40にフィールド電流が供給され発
電機４の出力電圧を上昇させ、一方、発電機４の出力電
圧が高い場合には、ツェナーダイオード34が導通するた
め、トランジスタ32がオフになりコイル40にフィールド
電流が流れなくなり発電機４の出力電圧を低下させるも
のである。Next, output control of the generator 4 based on the radiator water temperature will be described. FIG. 3 shows an electric circuit for controlling power supply to an unrated electric load (for example, a heated windshield) in the vehicle power generation system 1 to which the present invention is applied. The same components as those in FIG. 1 are denoted by the same reference numerals. In the figure, 20 to 27 are resistors, 30 is a radiator water temperature detection posistor whose resistance value increases when the water temperature increases, 31 to 33 are transistors, 34 is a Zener diode, 35 is a diode,
40 is an exciting coil of the generator 4, 50 is a comparator, and 60 is a battery. The coil 40, the diode 35 absorbing the back electromotive force of the coil 40, the transistors 32 to 33, the resistors 25 to 27, and the zener diode 34 constitute a regulator of the generator 4. That is, when the output voltage of the generator 4 is low,
Since the Zener diode 34 does not conduct, the transistor
32 is turned on, a field current is supplied to the coil 40 and the output voltage of the generator 4 is increased. On the other hand, when the output voltage of the generator 4 is high, the Zener diode 34 conducts, and the transistor 32 is turned off. That is, the field current stops flowing through the coil 40 and the output voltage of the generator 4 is reduced.
比較器50の２つの入力端子には、ポジスタ30及び抵抗
20により分圧された電圧と、抵抗21及び抵抗22により分
圧された電圧とが供給される。ラジエタの水温が高くな
ると、（すなわちポジスタ30の抵抗値が増大すると）比
較器50の出力がハイレベルになりトランジスタ31がオン
してトランジスタ32がオフになる。この結果コイル40に
フィールド電流が流れなくなり、発電機４の発電が停止
する。すなわちラジエタの水温が設定値を越えた場合に
は発電機４の出力を抑制することが可能になる。The two input terminals of the comparator 50 are connected to the posistor 30 and the resistor.
The voltage divided by 20 and the voltage divided by the resistors 21 and 22 are supplied. When the water temperature of the radiator increases (that is, when the resistance value of the posistor 30 increases), the output of the comparator 50 goes high, turning on the transistor 31 and turning off the transistor 32. As a result, no field current flows through the coil 40, and the power generation of the generator 4 stops. That is, when the water temperature of the radiator exceeds the set value, the output of the generator 4 can be suppressed.
以上説明した実施例においては、短時間定格のパワー
ステアリングは、アクティブサスペンション、アンチロ
ックブレーキ、スキッドコントロール等でもよい。また
連続定格の冷却ファンは、エアコンプレッサー等でもよ
く、更に発電機４は低電圧用のものでも使用できる。In the above-described embodiment, the short-time rated power steering may be an active suspension, an anti-lock brake, a skid control, or the like. The cooling fan having a continuous rating may be an air compressor or the like, and the generator 4 may be a low-voltage generator.
以上説明したように本発明の車両用発電システムによ
れば該システムの大型化及び重量増加を招くことなく効
率的に油圧負荷及び油圧モータを駆動することが可能に
なる。As described above, according to the vehicle power generation system of the present invention, the hydraulic load and the hydraulic motor can be efficiently driven without increasing the size and weight of the system.
第１図は本発明が適用される車両用発電システムの概要
図、第２図はクランクプーリと各種部材との間の動力伝
達状態を示す図、第３図は定格外の電気負荷への給電を
制御する電気回路図である。 ２……油圧ポンプ ３……油圧モータ ４……発電機FIG. 1 is a schematic diagram of a vehicular power generation system to which the present invention is applied, FIG. 2 is a diagram showing a power transmission state between a crank pulley and various members, and FIG. 3 is a power supply to an unrated electric load. It is an electric circuit diagram which controls. 2 ... Hydraulic pump 3 ... Hydraulic motor 4 ... Generator
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) F02B 61/00 F02B 63/04 H02P 9/04──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 6 , DB name) F02B 61/00 F02B 63/04 H02P 9/04
Claims (1)
給電する第１の発電機と、車載の油圧ポンプにより駆動
される油圧モータと、前記油圧モータにより作動される
第２の発電機と、前記第２の発電機により給電され前記
電気負荷よりも高い電圧で駆動される加熱装置と、前記
油圧ポンプにより駆動される油圧負荷と、前記油圧ポン
プから前記油圧モータ及び前記油圧負荷への給油制御を
行う制御手段と、 を備えたことを特徴とする車両用発電システム。A first generator driven by an engine to supply power to a rated electric load; a hydraulic motor driven by a hydraulic pump mounted on a vehicle; a second generator operated by the hydraulic motor; A heating device powered by a second generator and driven at a voltage higher than the electric load; a hydraulic load driven by the hydraulic pump; and a refueling control from the hydraulic pump to the hydraulic motor and the hydraulic load. A power generation system for a vehicle, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1317615A JP2805921B2 (en) | 1989-12-08 | 1989-12-08 | Vehicle power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1317615A JP2805921B2 (en) | 1989-12-08 | 1989-12-08 | Vehicle power generation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03179133A JPH03179133A (en) | 1991-08-05 |
| JP2805921B2 true JP2805921B2 (en) | 1998-09-30 |
Family
ID=18090165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1317615A Expired - Fee Related JP2805921B2 (en) | 1989-12-08 | 1989-12-08 | Vehicle power generation system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2805921B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6021641A (en) * | 1995-03-09 | 2000-02-08 | Buschur; Jeffrey J. | Hydraulically powered fan system for vehicles |
| US5535845A (en) * | 1995-03-09 | 1996-07-16 | Itt Automotive Electrical Systems, Inc. | Automotive hydraulic system and method |
| US5960628A (en) * | 1995-03-09 | 1999-10-05 | Valeo Electrical Systems, Inc. | Hydraulically powered fan and power steering in vehicle |
| EP0946384A1 (en) * | 1996-12-24 | 1999-10-06 | Itt Automotive Electrical Systems, Inc. | Hydraulically powered fan and power steering in a vehicle |
| US5946911A (en) * | 1997-01-07 | 1999-09-07 | Valeo Electrical Systems, Inc. | Fluid control system for powering vehicle accessories |
| US6629411B2 (en) | 2001-05-09 | 2003-10-07 | Valeo Electrical Systems, Inc. | Dual displacement motor control |
-
1989
- 1989-12-08 JP JP1317615A patent/JP2805921B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03179133A (en) | 1991-08-05 |
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