JPH0616051A - Electric vehicle - Google Patents

Electric vehicle

Info

Publication number
JPH0616051A
JPH0616051A JP19920392A JP19920392A JPH0616051A JP H0616051 A JPH0616051 A JP H0616051A JP 19920392 A JP19920392 A JP 19920392A JP 19920392 A JP19920392 A JP 19920392A JP H0616051 A JPH0616051 A JP H0616051A
Authority
JP
Japan
Prior art keywords
hydraulic
battery
generator
motor
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.)
Withdrawn
Application number
JP19920392A
Other languages
Japanese (ja)
Inventor
Kiyonori Sekiguchi
清則 関口
Toshihiko Ito
猪頭  敏彦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Soken Inc
Original Assignee
Nippon Soken Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Soken Inc filed Critical Nippon Soken Inc
Priority to JP19920392A priority Critical patent/JPH0616051A/en
Publication of JPH0616051A publication Critical patent/JPH0616051A/en
Withdrawn legal-status Critical Current

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  • Hybrid Electric Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

PURPOSE:To provide an electric vehicle which can effectively use a low polution engine, has a long travel distance, and saves time in charging a battery. CONSTITUTION:An electric vehicle has provided therein an engine 1, a generator driven by the engine 1 via a haydraulic pump 9 and a hydraulic motor 2, a battery 3 charged by the generator 2, an electric motor which rotates when powered by the battery 3, a hydraulic pump 5 rotatably driven by the electric motor 4, a hydraulic motor provided at each driving wheel W, and a hydraulic controller for controlling the supply of pressure oil by the hydraulic pump 5 to each hydraulic motor 6. Since the engine drives the generator 2, a substantially regular operation is required, and a low polution non-gasoline fuel can be used. The battery constantly charged by the generator 2 allows a long travel distance and saves time in charging the battery.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は電気自動車に関し、特に
長時間走行が可能な電気自動車に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vehicle, and more particularly to an electric vehicle capable of running for a long time.

【0002】[0002]

【従来の技術】低公害車両として電気自動車が注目され
ており、また、排気エミッションの少ない低公害エンジ
ンとしてメタノールエンジンや水素エンジンが注目され
ている。
2. Description of the Related Art Electric vehicles are attracting attention as low-pollution vehicles, and methanol engines and hydrogen engines are attracting attention as low-pollution engines with low exhaust emissions.

【0003】[0003]

【発明が解決しようとする課題】しかし、電気自動車
は、小型で充分な容量のバッテリがないため、走行可能
距離が短く、バッテリの充電に長時間を要する等の問題
点があるためガソリン車に代わるには至っていない。ま
た、低公害エンジンも過渡性能に難点がある等のため
に、ガソリンエンジンに代わるものとはなっていない。
However, since electric vehicles are small and do not have a battery with a sufficient capacity, they have short travel distances, and it takes a long time to charge the batteries. It has not been replaced. Also, the low-pollution engine is not a substitute for the gasoline engine because of its difficulty in transient performance.

【0004】本発明はかかる背景に鑑みてなされたもの
で、過渡特性に難点のある低公害エンジン等をも有効に
利用でき、走行可能距離が長く、バッテリ充電の手間も
少ない電気自動車を提供することを目的とする。
The present invention has been made in view of the above background, and provides an electric vehicle that can effectively use a low-pollution engine or the like having a difficulty in transient characteristics, has a long mileage, and requires less battery charging. The purpose is to

【0005】[0005]

【課題を解決するための手段】本発明の構成を説明する
と、内燃機関1と、該内燃機関1に駆動される発電機2
と、発電機2により充電されるバッテリ3と、バッテリ
3より電力供給を受けて回転する電気モータ4と、電気
モータ4により回転駆動される油圧ポンプ5と、各駆動
輪Wに設けた油圧モータ6と、上記油圧ポンプ5より各
油圧モータ6への圧油供給を制御する圧油供給制御手段
7とを具備している。
To explain the structure of the present invention, an internal combustion engine 1 and a generator 2 driven by the internal combustion engine 1 will be described.
A battery 3 charged by the generator 2, an electric motor 4 that rotates by receiving electric power from the battery 3, a hydraulic pump 5 rotationally driven by the electric motor 4, and a hydraulic motor provided on each drive wheel W. 6 and a pressure oil supply control means 7 for controlling the pressure oil supply from the hydraulic pump 5 to each hydraulic motor 6.

【0006】油圧モータ6に代えて各駆動輪Wに電気モ
ータ41を設けても良く、この場合は、上記バッテリ3
より各電気モータ41への電力供給を制御する電力供給
制御手段8を具備している。
Instead of the hydraulic motor 6, an electric motor 41 may be provided on each drive wheel W. In this case, the battery 3 is used.
The electric power supply control means 8 for controlling the electric power supply to each electric motor 41 is provided.

【0007】[0007]

【作用】上記構成において、内燃機関1は発電機2を駆
動するものであるから、ほぼ定常的な運転をすれば良
く、過渡特性に難点がある低公害の非ガソリン系のもの
が使用できる。また、ガソリン系のものを使用した場合
でも、排気エミッションの良好な領域で定常運転が可能
であるから、低公害が実現される。加えて、バッテリ3
は常時発電機2により充電されているから、走行可能距
離は長く、バッテリ充電の手間も大きく軽減される。
In the above structure, since the internal combustion engine 1 drives the generator 2, it suffices to perform almost steady operation, and a low-pollution non-gasoline system having a difficulty in transient characteristics can be used. Even when a gasoline type is used, low pollution can be realized because the steady operation can be performed in a region where the exhaust emission is good. In addition, the battery 3
Since the vehicle is always charged by the generator 2, the travelable distance is long, and the labor for battery charging is greatly reduced.

【0008】駆動輪Wに直接電気モータ41を設けた場
合には、油圧系を介しないから、構成の簡素化が図られ
る。
When the electric motor 41 is provided directly on the drive wheels W, no hydraulic system is provided, so that the structure can be simplified.

【0009】[0009]

【実施例1】図1において、エンジン1はメタノールあ
るいは水素等を使用した低公害エンジンである。エンジ
ン1には油圧ポンプ9が連結され、圧油が油圧コントロ
ーラ7に供給されている。油圧コントローラ7は油圧配
管と、これに設けた切換弁、流量調整弁等を有してお
り、車両の運転状態に応じて入力する外部信号により上
記各弁を開閉作動せしめる。
[Embodiment 1] In FIG. 1, an engine 1 is a low-pollution engine using methanol or hydrogen. A hydraulic pump 9 is connected to the engine 1 and pressure oil is supplied to the hydraulic controller 7. The hydraulic controller 7 has a hydraulic pipe, a switching valve provided in the hydraulic pipe, a flow rate adjusting valve, and the like, and opens and closes each of the above valves by an external signal input according to the operating state of the vehicle.

【0010】油圧コントローラ7の出力配管の一つ71
には油圧モータ21が設けてあり、該油圧モータ21に
連結された発電機2により車載のバッテリ3が充電され
ている。バッテリ電源はインバータ81に供給され、該
インバータ81は直流電源を交流に変換して、コントロ
ールユニット8からの信号に応じ交流モータ4を回転駆
動する。この回転駆動は、例えば車両の運転状態に応じ
て異なる回転数で定回転制御する等による。
One of the output pipes 71 of the hydraulic controller 7
Is provided with a hydraulic motor 21, and a vehicle-mounted battery 3 is charged by a generator 2 connected to the hydraulic motor 21. The battery power is supplied to the inverter 81, which converts the DC power into AC and drives the AC motor 4 to rotate in response to the signal from the control unit 8. This rotational drive is performed by, for example, performing constant rotation control at different rotational speeds depending on the operating state of the vehicle.

【0011】上記交流モータ4には油圧ポンプ5が連結
され、その吐出油が上記油圧コントローラ7に供給され
ている。油圧ポンプ5としては例えば約200Kg/c
m2、100l/min程度のものが使用できる。油圧
コントローラ7より延びる4系統の出力配管72A,7
2B,72C,72Dは車両前後の4つの駆動輪Wにそ
れぞれ設けた油圧モータ6に至っている。油圧コントロ
ーラ7には脈動低減と蓄圧のためのアキュムレータ73
が設けられ、油供給配管74がオイルタンク75より接
続されている。また、補機類に至る出力配管76が延出
している。
A hydraulic pump 5 is connected to the AC motor 4, and its discharge oil is supplied to the hydraulic controller 7. As the hydraulic pump 5, for example, about 200 kg / c
A m2 of about 100 l / min can be used. Four system output pipes 72A, 7 extending from the hydraulic controller 7
Reference numerals 2B, 72C and 72D lead to hydraulic motors 6 provided on the four drive wheels W in front of and behind the vehicle, respectively. The hydraulic controller 7 includes an accumulator 73 for reducing pulsation and accumulating pressure.
Is provided, and the oil supply pipe 74 is connected from the oil tank 75. In addition, an output pipe 76 extending to the accessories is extended.

【0012】上記構成において、上記エンジン1はバッ
テリ3の充電状態を適正に保つように、ほぼ定回転で適
宜運転される。したがって過渡応答性は要求されないか
ら、メタノールエンジン等の低公害エンジンを好適に使
用できる。また、ガソリンエンジンを使用した場合で
も、排気エミッションの良好な領域でのみ運転できるか
ら、環境悪化を最小限に防止することができる。
In the above structure, the engine 1 is appropriately operated at a substantially constant speed so as to maintain the charged state of the battery 3 appropriately. Therefore, transient response is not required, so that a low-pollution engine such as a methanol engine can be preferably used. Further, even when a gasoline engine is used, the engine can be operated only in a region where the exhaust emission is good, so that environmental deterioration can be prevented to a minimum.

【0013】油圧コントローラ7の出力油により油圧モ
ータ21が回転せしめられて発電機2を駆動し、バッテ
リ3が充電される。バッテリ電源はインバータ81を介
して交流モータ4に供給され、油圧ポンプ5が回転せし
められて、その圧油が油圧コントローラ7の出力配管を
経て適宜各駆動輪Wの油圧モータ6へ供給される。各油
圧モータへの圧油の切換え、油量の増減はピエゾ素子等
を用いたアクチュエータデバイスにより高速で行われ、
駆動輪Wの正逆転および回転速度が制御される。
The output oil of the hydraulic controller 7 rotates the hydraulic motor 21 to drive the generator 2 and the battery 3 is charged. Battery power is supplied to the AC motor 4 via the inverter 81, the hydraulic pump 5 is rotated, and the pressure oil is appropriately supplied to the hydraulic motor 6 of each drive wheel W via the output pipe of the hydraulic controller 7. Switching of pressure oil to each hydraulic motor and increase / decrease of oil amount are performed at high speed by an actuator device using a piezo element,
The forward / reverse rotation and the rotation speed of the drive wheel W are controlled.

【0014】かくして、バッテリ3は常に発電機2によ
り充電されているから、車両の走行可能距離は長くな
り、また、バッテリ充電の手間も大きく削減できる。
Thus, since the battery 3 is constantly charged by the generator 2, the travelable distance of the vehicle becomes long, and the battery charging time can be greatly reduced.

【0015】なお、各出力配管72A〜72Dには、油
圧ポンプ9からの吐出油も適宜供給できるようになって
おり、車両の急加速時等には、油圧ポンプ5の圧油に上
記油圧ポンプ9の圧油を加えて、高トルクを得ることが
できる。もちろん、油圧ポンプ5のみで充分なトルクを
得ることができれば、これは不要である。
It should be noted that the output oil from the hydraulic pump 9 can be appropriately supplied to each of the output pipes 72A to 72D, and when the vehicle is suddenly accelerated, the hydraulic pump 5 is used as the hydraulic oil. High pressure can be obtained by adding 9 pressure oils. Of course, if sufficient torque can be obtained only by the hydraulic pump 5, this is unnecessary.

【0016】油圧ポンプ9は発生油圧が油圧ポンプ5と
同程度、発生油量が1.5倍程度で良いから、同程度の
大きさの車両の従来エンジンに比して、約半分の大きさ
にすることができ、これによっても、燃費や排気エミッ
ションが改善される。なお、エンジン1の始動は従来と
同様のスタータモータにより行う以外に、アキュムレー
タ73の蓄圧により作動する油圧モータによっても良
い。
Since the hydraulic pump 9 has a hydraulic pressure that is approximately the same as the hydraulic pump 5 and the amount of oil that is generated is approximately 1.5 times that of the hydraulic pump 5, it is approximately half the size of a conventional engine of a vehicle of approximately the same size. Which also improves fuel economy and exhaust emissions. The engine 1 may be started by a starter motor similar to the conventional one, or by a hydraulic motor operated by accumulator 73 pressure accumulation.

【0017】[0017]

【実施例2】図2に示す如く、各駆動輪Wに交流モータ
41を内蔵し、コントロールユニット8よりインバータ
81を介して直接各駆動輪Wの交流モータ41を回転制
御する構成としても良い。これによれば、実施例1にお
ける大型の交流モータ4、油圧ポンプ5、およびこれに
付属する配管系が不要となり、設置スペースの低減が図
られる。
Second Embodiment As shown in FIG. 2, each drive wheel W may have a built-in AC motor 41, and the control unit 8 may directly control the rotation of the AC motor 41 of each drive wheel W via an inverter 81. According to this, the large-sized AC motor 4, the hydraulic pump 5, and the piping system attached to the same in the first embodiment are unnecessary, and the installation space can be reduced.

【0018】なお、各交流モータ41の発生トルクが充
分であれば、各駆動輪Wの油圧モータ6は省略すること
ができ、配管の手間やスペースが更に大幅に低減され
る。
If the torque generated by each AC motor 41 is sufficient, the hydraulic motor 6 for each drive wheel W can be omitted, and the labor and space for piping can be further reduced.

【0019】上記各実施例において、駆動輪Wの各油圧
モータ6への補助的な圧油供給が不要な場合は、油圧ポ
ンプ9および油圧モータ21を省略して、発電機2とエ
ンジン1を直結しても良い。
In each of the above embodiments, when it is not necessary to supply auxiliary hydraulic oil to the hydraulic motors 6 of the drive wheels W, the hydraulic pump 9 and the hydraulic motor 21 are omitted, and the generator 2 and the engine 1 are connected. You may connect directly.

【0020】また、車両減速時に、各駆動輪Wの油圧モ
ータ6に発生する油圧エネルギーをアキュムレータ73
に回生し、あるいは油圧モータ21および発電機2を介
してバッテリ3に回生するような構成とすることもでき
る。
Further, the hydraulic energy generated in the hydraulic motor 6 of each drive wheel W during deceleration of the vehicle is transferred to the accumulator 73.
Alternatively, the battery 3 may be regenerated into the battery 3 via the hydraulic motor 21 and the generator 2.

【0021】[0021]

【発明の効果】以上の如く、本発明の電気自動車によれ
ば、バッテリ充電を行うことなく長距離を走行すること
ができ、低公害車として実用価値の高いものである。
As described above, according to the electric vehicle of the present invention, it is possible to travel a long distance without charging the battery, and it is highly practical as a low-pollution vehicle.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例を示す電気自動車の駆動系統
図である。
FIG. 1 is a drive system diagram of an electric vehicle showing an embodiment of the present invention.

【図2】本発明の他の実施例を示す電気自動車の駆動系
統図である。
FIG. 2 is a drive system diagram of an electric vehicle showing another embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1 エンジン(内燃機関) 2 発電機 3 バッテリ 4,41 交流モータ(電気モータ) 5 油圧ポンプ 6 油圧モータ 7 油圧コントローラ(圧油供給制御手段) 8 コントロ−ルユニット(電力供給制御手段) 1 Engine (Internal Combustion Engine) 2 Generator 3 Battery 4, 41 AC Motor (Electric Motor) 5 Hydraulic Pump 6 Hydraulic Motor 7 Hydraulic Controller (Pressure Oil Supply Control Means) 8 Control Unit (Power Supply Control Means)

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 内燃機関と、該内燃機関に駆動される発
電機と、発電機により充電されるバッテリと、バッテリ
より電力供給を受けて回転する電気モータと、電気モー
タにより駆動される油圧ポンプと、各駆動輪に設けた油
圧モータと、上記油圧ポンプより各油圧モータへの圧油
供給を制御する圧油供給制御手段とを具備する電気自動
車。
1. An internal combustion engine, a generator driven by the internal combustion engine, a battery charged by the generator, an electric motor that rotates by receiving electric power supplied from the battery, and a hydraulic pump driven by the electric motor. An electric vehicle comprising: a hydraulic motor provided on each drive wheel; and a pressure oil supply control means for controlling pressure oil supply from the hydraulic pump to each hydraulic motor.
【請求項2】 内燃機関と、該内燃機関に駆動される発
電機と、発電機により充電されるバッテリと、各駆動輪
に設けた電気モータと、上記バッテリより各電気モータ
への電力供給を制御する電力供給制御手段とを具備する
電気自動車。
2. An internal combustion engine, a generator driven by the internal combustion engine, a battery charged by the generator, an electric motor provided on each drive wheel, and a power supply from the battery to each electric motor. An electric vehicle having a power supply control means for controlling.
JP19920392A 1992-07-02 1992-07-02 Electric vehicle Withdrawn JPH0616051A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19920392A JPH0616051A (en) 1992-07-02 1992-07-02 Electric vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19920392A JPH0616051A (en) 1992-07-02 1992-07-02 Electric vehicle

Publications (1)

Publication Number Publication Date
JPH0616051A true JPH0616051A (en) 1994-01-25

Family

ID=16403859

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19920392A Withdrawn JPH0616051A (en) 1992-07-02 1992-07-02 Electric vehicle

Country Status (1)

Country Link
JP (1) JPH0616051A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0714029A2 (en) 1994-11-25 1996-05-29 Nsk Ltd Rolling bearing unit with a rotational speed sensor
FR2732652A1 (en) * 1995-04-05 1996-10-11 Techno Expres Energy recuperating electro-hydraulic vehicle
JP2012254743A (en) * 2011-06-09 2012-12-27 Toyota Motor Corp Lubricating device
DE102022210771A1 (en) 2022-10-12 2024-04-18 Scheuerle Fahrzeugfabrik Gmbh Drive and transport vehicle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0714029A2 (en) 1994-11-25 1996-05-29 Nsk Ltd Rolling bearing unit with a rotational speed sensor
FR2732652A1 (en) * 1995-04-05 1996-10-11 Techno Expres Energy recuperating electro-hydraulic vehicle
WO1998014344A1 (en) * 1995-04-05 1998-04-09 Technical Maintenance Corporation Electro-hydraulic vehicle with energy regeneration
US6454033B1 (en) 1995-04-05 2002-09-24 Touchtunes Music Corporation Electro-hydraulic vehicle with energy regeneration
JP2012254743A (en) * 2011-06-09 2012-12-27 Toyota Motor Corp Lubricating device
DE102022210771A1 (en) 2022-10-12 2024-04-18 Scheuerle Fahrzeugfabrik Gmbh Drive and transport vehicle

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Effective date: 19991005