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WO1992001584A1 - Hybrid hydraulic drive for motor vehicles - Google Patents

Hybrid hydraulic drive for motor vehicles Download PDF

Info

Publication number
WO1992001584A1
WO1992001584A1 PCT/EP1991/001387 EP9101387W WO9201584A1 WO 1992001584 A1 WO1992001584 A1 WO 1992001584A1 EP 9101387 W EP9101387 W EP 9101387W WO 9201584 A1 WO9201584 A1 WO 9201584A1
Authority
WO
WIPO (PCT)
Prior art keywords
hydraulic
motor
pressure oil
drive
motor vehicles
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.)
Ceased
Application number
PCT/EP1991/001387
Other languages
German (de)
French (fr)
Inventor
Gerhard Brandl
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1992001584A1 publication Critical patent/WO1992001584A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/08—Prime-movers comprising combustion engines and mechanical or fluid energy storing means
    • B60K6/12—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable fluidic accumulator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/4078—Fluid exchange between hydrostatic circuits and external sources or consumers
    • F16H61/4096—Fluid exchange between hydrostatic circuits and external sources or consumers with pressure accumulators
    • 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
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

Definitions

  • the invention relates to a hydraulic hybrid drive or a drive system for motor vehicles.
  • EP 0 044 252 AI shows a drive system with a hydraulic pump.
  • the present invention has set itself the goal of providing a hydraulic hybrid drive for motor vehicles, which provides the electric drive in a city, with very good acceleration and low fuel costs.
  • a pressure oil generator with an internal combustion engine here for example in the form of a free-piston engine 1, one or more pressure oil reservoirs 2 for absorbing the braking energy and an adjustable hydraulic motor 3 for driving the wheels 10, 11.
  • a free piston engine is, for. B. described in DE 26 48 958 C2.
  • a unit 1 it combines an internal combustion engine with a hydraulic pump.
  • a conventional internal combustion engine 1 a instead of the free-piston engine 1 shown in the figure, it is also possible to use a conventional internal combustion engine 1 a with an attached first hydraulic oil pump 1 b.
  • the motor vehicle is electrically driven by means of a second oil pump 5, which is electrically driven by an electric motor 16 and pumps pressure oil into the hydraulic system 15.
  • the drive is primarily intended for city traffic. Since the vehicle is accelerated with the energy stored in the pressure oil stores 2, a smaller electric motor 16 and a smaller battery 4 are sufficient for driving in the city than is the case with direct drive of the vehicle would be the case by a battery-powered electric motor.
  • the loss of energy due to the hydraulic power transmission is compensated for in city traffic by regenerative braking with storage of the braking energy in the pressure oil reservoirs 2 and their reuse.
  • the electrically driven oil pump 5 can be used to recharge the battery, in which case the oil pump 5 acts as a hydraulic motor and the electric motor 16 as a generator.
  • a differential 20 for connecting the hydraulic motor 3 to the pressure oil reservoirs 2, and an oil tank 22 connected to the hydraulic system 15 and front wheels 26 and 27.
  • a currently preferred internal combustion engine gasoline or diesel engine
  • another heat engine can be used.
  • a gas turbine, steam engine, steam turbine, or a Stirling engine can be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)

Abstract

A hydraulic drive for motor vehicles has a pressure oil generator (1) driven by the internal combustion engine, a pressure oil reservoir (2), an adjustable hydromotor (3) and an electric oil pump (5) as travelling mechanism in the city traffic.

Description

Hydraulischer Hybridantrieb für Kraftfahrzeuge Hydraulic hybrid drive for motor vehicles

Die Erfindung bezieht sich auf einen hydraulischen Hybrid¬ antrieb bzw. ein Antriebssystem für Kraftfahrzeuge. Beispiels¬ weise die EP 0 044 252 AI zeigt ein Antriebssystem mit einer Hydraulikpumpe. Die vorliegende Erfindung hat sich zum Ziel gesetzt einen hydraulischen Hybridantrieb für Kraftfahrzeuge vorzusehen, der in einer Stadt den elektrischen Antrieb vorsieht und zwar bei sehr guter Beschleunigung und geringen Treibstoffkosten.The invention relates to a hydraulic hybrid drive or a drive system for motor vehicles. For example, EP 0 044 252 AI shows a drive system with a hydraulic pump. The present invention has set itself the goal of providing a hydraulic hybrid drive for motor vehicles, which provides the electric drive in a city, with very good acceleration and low fuel costs.

Anhand der Zeichnungen wird im folgenden die Erfindung erläutert.The invention is explained below with reference to the drawings.

Allgemein wird ausgegangen von dem an sich bekannten Antrieb für Kraftf hrzeuge, wobei hier folgendes vorgesehen ist: ein Druckölerzeuger mit Verbrennungsmotor, hier beispielsweise in Form eines Freikolbenmotors 1, ein oder mehrere Drucköl¬ speicher 2 zur Aufnahme der Bremsenergie und ein verstellbarer Hydromotor 3 zum Antrieb der Räder 10, 11. Ein Freikolbenmotor ist z. B. in DE 26 48 958 C2 beschrieben. Er kombiniert in einer Einheit 1 einen Verbrennungsmotor mit einer Hydraulik¬ pumpe. Anstelle des in der Figur gezeigten Freikolbenmotors 1 kann auch ein konventioneller Verbrennungsmotor la mit ange¬ bauter erster Hydraulikölpumpe lb verwendet werden.It is generally assumed that the drive for motor vehicles is known per se, the following being provided here: a pressure oil generator with an internal combustion engine, here for example in the form of a free-piston engine 1, one or more pressure oil reservoirs 2 for absorbing the braking energy and an adjustable hydraulic motor 3 for driving the wheels 10, 11. A free piston engine is, for. B. described in DE 26 48 958 C2. In a unit 1 it combines an internal combustion engine with a hydraulic pump. Instead of the free-piston engine 1 shown in the figure, it is also possible to use a conventional internal combustion engine 1 a with an attached first hydraulic oil pump 1 b.

Erfindungsgemäß erfolgt der elektrische Antrieb des Kraftfahr¬ zeuges mittels einer zweiten elektrisch durch einen Elektro¬ motor 16 angetriebenen Ölpumpe 5, die Drucköl in das Hydrau¬ liksystem 15 pumpt. Der Antrieb ist vorwiegend für den Stadt¬ verkehr gedacht. Da die Beschleunigung des Fahrzeuges mit der in den Druckölspeichern 2 gespeicherten Energie erfolgt, genügen ein kleinerer Elektromotor 16 und eine kleinere Bat¬ terie 4 zum Fahren in der Stadt als dies beim direkten Antrieb des Fahrzeugs durch einen batteriegespeisten Elektromotor der Fall wäre. Der Energieverlust durch die hydraulische Kraft¬ übertragung wird im Stadtverkehr durch die Nutzbremsung mit Speicherung der Bremsenergie in den Druckölspeichern 2 und deren Wiederverwendung ausgeglichen. Die elektrisch ange¬ triebene Ölpumpe 5 kann zur Wiederaufladung der Batterie verwendet werden, wobei dann die Ölpumpe 5 als Hydromotor und der Elektromotor 16 als Generator wirken.According to the invention, the motor vehicle is electrically driven by means of a second oil pump 5, which is electrically driven by an electric motor 16 and pumps pressure oil into the hydraulic system 15. The drive is primarily intended for city traffic. Since the vehicle is accelerated with the energy stored in the pressure oil stores 2, a smaller electric motor 16 and a smaller battery 4 are sufficient for driving in the city than is the case with direct drive of the vehicle would be the case by a battery-powered electric motor. The loss of energy due to the hydraulic power transmission is compensated for in city traffic by regenerative braking with storage of the braking energy in the pressure oil reservoirs 2 and their reuse. The electrically driven oil pump 5 can be used to recharge the battery, in which case the oil pump 5 acts as a hydraulic motor and the electric motor 16 as a generator.

Ferner ist noch folgendes vorgesehen: ein Differential 20, Ölleitungen 21 zur Verbindung des Hydromotors 3 mit den Druckölspeichern 2, und ein Ölbehälter 22 verbunden mit dem Hydrauliksystem 15 und Vorderräder 26 und 27.The following is also provided: a differential 20, oil lines 21 for connecting the hydraulic motor 3 to the pressure oil reservoirs 2, and an oil tank 22 connected to the hydraulic system 15 and front wheels 26 and 27.

An Stelle eines derzeit bevorzugten Verbrennungsmotors nit innerer Verbrennung (Benzin- oder Dieselmotor) kann auch eine andere Wärmekraftmaschine verwendet werden. Zum Beispiel kann eine Gasturbine, Dampfmaschine, Dampfturbine oder ein Stirlingmotor verwendet werden. Instead of a currently preferred internal combustion engine (gasoline or diesel engine), another heat engine can be used. For example, a gas turbine, steam engine, steam turbine, or a Stirling engine can be used.

Claims

Patentansprüche Claims 1. Antriebssystem für Kraftfahrzeuge, bestehend aus einem Verbrennungsmotor, der eine Hydraulikpumpe antreibt, einem oder mehreren Druckölspeicher(n) (2) und einem verstellbaren Hydromotor (3), dadurch gekennzeichnet, daß der elektrische Antrieb des Kraftfahrzeuges mittels einer elektrisch ange¬ triebenen Ölpumpe (5) erfolgt, die Drucköl in den bzw. die Druckölspeicher (2) des Hydrauliksystems pumpt.1. Drive system for motor vehicles, consisting of an internal combustion engine which drives a hydraulic pump, one or more pressure oil reservoir (s) (2) and an adjustable hydraulic motor (3), characterized in that the electric drive of the motor vehicle by means of an electrically driven oil pump (5) takes place, which pumps the pressure oil into the pressure oil reservoir (2) of the hydraulic system. 2. Antriebssystem nach Anspruch 1, dadurch gekennzeichnet, daß' die elektrisch angetriebene Ölpumpe (5) zum Wiederaufladen einer Batterie (4) verwendet werden kann, wobei die Ölpumpe (5) als Hydromotor und der elektrische Antriebsmotor als Generator wirken.2. Drive system according to claim 1, characterized in that ' the electrically driven oil pump (5) for recharging a battery (4) can be used, the oil pump (5) acting as a hydraulic motor and the electric drive motor as a generator. 3. Antriebssystem nach Anspruch 1, dadurch gekennzeichnet, daß der Hydromotor (3) zum Antrieb und Bremsen der Räder dient.3. Drive system according to claim 1, characterized in that the hydraulic motor (3) serves to drive and brake the wheels. 4. Antriebssystem nach Anspruch 1, dadurch gekennzeichnet, daß ein Freikolbenmotor als Verbrennungsmotor (la) und erste Öl¬ pumpe (lb) dient. 4. Drive system according to claim 1, characterized in that a free piston engine serves as an internal combustion engine (la) and first Öl¬ pump (lb).
PCT/EP1991/001387 1990-07-24 1991-07-24 Hybrid hydraulic drive for motor vehicles Ceased WO1992001584A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4023506A DE4023506A1 (en) 1990-07-24 1990-07-24 HYDRAULIC HYBRID DRIVE FOR MOTOR VEHICLES
DEP4023506.8 1990-07-24

Publications (1)

Publication Number Publication Date
WO1992001584A1 true WO1992001584A1 (en) 1992-02-06

Family

ID=6410918

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1991/001387 Ceased WO1992001584A1 (en) 1990-07-24 1991-07-24 Hybrid hydraulic drive for motor vehicles

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DE (1) DE4023506A1 (en)
WO (1) WO1992001584A1 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002028675A1 (en) * 2000-10-02 2002-04-11 Bloxham Steven R Hybrid vehicle and energy storage system and method
DE102007042155A1 (en) 2007-09-05 2009-03-12 Daimler Ag Energy conversion device, particularly motor vehicle energy conversion device, for driving system, has energy conversion units, where energy storing units are attached to energy conversion units
WO2009149998A1 (en) * 2008-06-12 2009-12-17 Zf Friedrichshafen Ag Drive train for a motor vehicle and method for operating the drive train
EP2200850A4 (en) * 2007-10-12 2011-10-05 Odyne Systems Llc DRIVING SYSTEM AND METHOD FOR A HYBRID VEHICLE AND METHOD AND METHOD FOR EMPTYING THE MINIMIZATION
FR2971741A1 (en) * 2011-02-17 2012-08-24 Peugeot Citroen Automobiles Sa Traction system for hybrid vehicle, has electrical machine that is connected to battery, where electric machine is rotatably connected to hydraulic machine load that is connected to pressure accumulators
EP2365915A4 (en) * 2008-12-01 2014-03-12 Odyne Systems Llc HYBRID DRIVE FOR HEAVY-WEIGHT TYPE TRUCKS AND AVERAGE WEIGHT
US8905166B2 (en) 2007-07-12 2014-12-09 Odyne Systems, Llc Hybrid vehicle drive system and method and idle reduction system and method
US9061680B2 (en) 2007-07-12 2015-06-23 Odyne Systems, Llc Hybrid vehicle drive system and method for fuel reduction during idle
US9283954B2 (en) 2007-07-12 2016-03-15 Odyne Systems, Llc System for and method of fuel optimization in a hybrid vehicle
US9878616B2 (en) 2007-07-12 2018-01-30 Power Technology Holdings Llc Hybrid vehicle drive system and method using split shaft power take off
US10427520B2 (en) 2013-11-18 2019-10-01 Power Technology Holdings Llc Hybrid vehicle drive system and method using split shaft power take off
US11225240B2 (en) 2011-12-02 2022-01-18 Power Technology Holdings, Llc Hybrid vehicle drive system and method for fuel reduction during idle
US11584242B2 (en) 2007-07-12 2023-02-21 Power Technology Holdings Llc Hybrid vehicle drive system and method and idle reduction system and method
US12330657B2 (en) 2011-12-02 2025-06-17 Power Technology Holdings Llc Hybrid vehicle drive system and method for fuel reduction during idle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10045999A1 (en) * 2000-09-18 2002-03-28 Still Gmbh Hydrostatic drive
DE102008012619A1 (en) * 2008-02-27 2009-09-10 Crop-Oil Ltd. Drive system operating method for combustion engine-free motor vehicle, involves converting electric energy stored in battery into kinetic operating power by electric vehicle drive during driving of motor vehicle with constant speed

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3205965A (en) * 1961-08-04 1965-09-14 Linde Eismasch Ag Motor vehicle
DE2648958A1 (en) * 1976-10-28 1978-05-03 Fengler Karl Heinz Opposed floating piston engine-driven pump - has gas-oil accumulators and electronic control for pump valves and fuel injection
DE2938404A1 (en) * 1979-09-22 1981-04-02 Stadt Esslingen am Neckar, 7300 Esslingen Trolley-bus with energy feedback via hydrostatic system - supplies braking pressure energy to hydraulic store with converter and pump with motor
EP0044252A1 (en) * 1980-07-10 1982-01-20 Jean Paul Jardinier Method and system for the propulsion of a wheeled vehicle, comprising a hydraulic transmission
DE3501608A1 (en) * 1985-01-18 1986-07-24 Jenbacher Werke Vertriebsgesel Vehicle, especially commercial vehicle with diesel-hydraulic drive train
EP0253975A1 (en) * 1986-07-25 1988-01-27 MAN Nutzfahrzeuge Aktiengesellschaft Propulsion device for a vehicle with emergency drive installation
AU581182B2 (en) * 1983-08-15 1989-02-16 David George Beale Power transmission assembly

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2510623A1 (en) * 1975-03-12 1976-09-23 Helmut Koerner Drive mechanism for vehicles with two motors - has differential gearing with two planet sets, three sun wheels and control system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3205965A (en) * 1961-08-04 1965-09-14 Linde Eismasch Ag Motor vehicle
DE2648958A1 (en) * 1976-10-28 1978-05-03 Fengler Karl Heinz Opposed floating piston engine-driven pump - has gas-oil accumulators and electronic control for pump valves and fuel injection
DE2938404A1 (en) * 1979-09-22 1981-04-02 Stadt Esslingen am Neckar, 7300 Esslingen Trolley-bus with energy feedback via hydrostatic system - supplies braking pressure energy to hydraulic store with converter and pump with motor
EP0044252A1 (en) * 1980-07-10 1982-01-20 Jean Paul Jardinier Method and system for the propulsion of a wheeled vehicle, comprising a hydraulic transmission
AU581182B2 (en) * 1983-08-15 1989-02-16 David George Beale Power transmission assembly
DE3501608A1 (en) * 1985-01-18 1986-07-24 Jenbacher Werke Vertriebsgesel Vehicle, especially commercial vehicle with diesel-hydraulic drive train
EP0253975A1 (en) * 1986-07-25 1988-01-27 MAN Nutzfahrzeuge Aktiengesellschaft Propulsion device for a vehicle with emergency drive installation

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002028675A1 (en) * 2000-10-02 2002-04-11 Bloxham Steven R Hybrid vehicle and energy storage system and method
US6834737B2 (en) 2000-10-02 2004-12-28 Steven R. Bloxham Hybrid vehicle and energy storage system and method
US10214199B2 (en) 2007-07-12 2019-02-26 Power Technology Holdings Llc Hybrid vehicle drive system and method and idle reduction system and method
US11077842B2 (en) 2007-07-12 2021-08-03 Power Technology Holdings Llc Hybrid vehicle drive system and method and idle reduction system and method
US11801824B2 (en) 2007-07-12 2023-10-31 Power Technology Holdings, Llc Hybrid vehicle drive system and method and idle reduction system and method
US11584242B2 (en) 2007-07-12 2023-02-21 Power Technology Holdings Llc Hybrid vehicle drive system and method and idle reduction system and method
US10792993B2 (en) 2007-07-12 2020-10-06 Power Technology Holdings Llc Vehicle drive system and method and idle reduction system and method
US8905166B2 (en) 2007-07-12 2014-12-09 Odyne Systems, Llc Hybrid vehicle drive system and method and idle reduction system and method
US10071647B2 (en) 2007-07-12 2018-09-11 Power Technology Holdings Llc System for and method of fuel optimization in a hybrid vehicle
US9061680B2 (en) 2007-07-12 2015-06-23 Odyne Systems, Llc Hybrid vehicle drive system and method for fuel reduction during idle
US9283954B2 (en) 2007-07-12 2016-03-15 Odyne Systems, Llc System for and method of fuel optimization in a hybrid vehicle
US9643593B2 (en) 2007-07-12 2017-05-09 Power Technology Holdings Llc Hybrid vehicle drive system and method for fuel reduction during idle
US9751518B2 (en) 2007-07-12 2017-09-05 Power Technology Holdings, Llc Hybrid vehicle drive system and method and idle reduction system and method
US9878616B2 (en) 2007-07-12 2018-01-30 Power Technology Holdings Llc Hybrid vehicle drive system and method using split shaft power take off
DE102007042155A1 (en) 2007-09-05 2009-03-12 Daimler Ag Energy conversion device, particularly motor vehicle energy conversion device, for driving system, has energy conversion units, where energy storing units are attached to energy conversion units
US8978798B2 (en) 2007-10-12 2015-03-17 Odyne Systems, Llc Hybrid vehicle drive system and method and idle reduction system and method
EP2200850A4 (en) * 2007-10-12 2011-10-05 Odyne Systems Llc DRIVING SYSTEM AND METHOD FOR A HYBRID VEHICLE AND METHOD AND METHOD FOR EMPTYING THE MINIMIZATION
WO2009149998A1 (en) * 2008-06-12 2009-12-17 Zf Friedrichshafen Ag Drive train for a motor vehicle and method for operating the drive train
EP2365915A4 (en) * 2008-12-01 2014-03-12 Odyne Systems Llc HYBRID DRIVE FOR HEAVY-WEIGHT TYPE TRUCKS AND AVERAGE WEIGHT
FR2971741A1 (en) * 2011-02-17 2012-08-24 Peugeot Citroen Automobiles Sa Traction system for hybrid vehicle, has electrical machine that is connected to battery, where electric machine is rotatably connected to hydraulic machine load that is connected to pressure accumulators
US11225240B2 (en) 2011-12-02 2022-01-18 Power Technology Holdings, Llc Hybrid vehicle drive system and method for fuel reduction during idle
US12330657B2 (en) 2011-12-02 2025-06-17 Power Technology Holdings Llc Hybrid vehicle drive system and method for fuel reduction during idle
US10427520B2 (en) 2013-11-18 2019-10-01 Power Technology Holdings Llc Hybrid vehicle drive system and method using split shaft power take off

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