EP1885574A2 - Groupe moteur pour vehicules hybrides - Google Patents

Groupe moteur pour vehicules hybrides

Info

Publication number
EP1885574A2
EP1885574A2 EP06765653A EP06765653A EP1885574A2 EP 1885574 A2 EP1885574 A2 EP 1885574A2 EP 06765653 A EP06765653 A EP 06765653A EP 06765653 A EP06765653 A EP 06765653A EP 1885574 A2 EP1885574 A2 EP 1885574A2
Authority
EP
European Patent Office
Prior art keywords
engine unit
unit according
engine
electrical energy
turbine
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Withdrawn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
EP06765653A
Other languages
German (de)
English (en)
Inventor
Pietro Spanò
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
Priority claimed from ITTP20050001 external-priority patent/ITTP20050001A1/it
Priority claimed from ITTP20050003 external-priority patent/ITTP20050003A1/it
Application filed by Individual filed Critical Individual
Publication of EP1885574A2 publication Critical patent/EP1885574A2/fr
Withdrawn legal-status Critical Current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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/44—Series-parallel type
    • 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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—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 ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/52—Driving a plurality of drive axles, e.g. four-wheel drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/43—Engines
    • B60Y2400/435—Supercharger or turbochargers
    • 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 present invention refers to an engine unit for hybrid vehicles .
  • Hybrid vehicles are designed with the object of consuming less fuel emitting less noxious substances and polluting gases, exploiting more rationally the energy of traditional fuels along with the advantages deriving from the use of electrical energy-supplied engines.
  • a first category comprises the vehicles in which a conventional endothermic engine drives a generator that in turn feeds an electric motor connected to the driving wheels.
  • a generator that in turn feeds an electric motor connected to the driving wheels.
  • such vehicles are not characterized by appreciable energy savings.
  • the efficiency of the generator and of the electric motor is anyhow lower than that of one with an entailed less-than-optimal transmission of power to the wheels.
  • a second category of hybrid vehicles comprises those vehicles in which the engine drives a generator that stores power in storage batteries, from which it is taken to drive an electric motor connected to the driveline.
  • a third category of hybrid vehicles comprises those vehicles in which the engine transmits power to the driving wheels and drives a generator recharging the storage batteries and feeding an electric motor, it also connected to the driving wheels.
  • the latter solution though certainly advantageous with respect to the others, still entails the drawback of being greatly affected by the higher or lower efficiency of the engine, the latter being the crucial element to the ends of overall efficiency (consumptions, emission of pollutants, etc.)
  • object of the present invention is to solve said problems of the known art, by providing an engine unit for hybrid vehicles as defined in independent claim 1.
  • the present invention further refers to a hybrid vehicle as defined in claim 11.
  • the present invention by overcoming the abovementioned problems of the known art, entails several and evident advantages .
  • figure 1 is an exemplary diagram of the engine unit according to the present invention.
  • an engine unit 1 comprises an endothermic engine 2, whose exhaust gases are utilized to drive a gas turbine 5.
  • the engine unit comprises a generator 6, driven by the turbine, producing electrical energy. This energy is then used to recharge battery backs 7 that in turn are used to feed the electric onboard apparatuses and/or one or more electric motors 8 aiding the drive .
  • the endothermic volumetric engine 2 Otto-cycle, diesel or rotative, transmits motion directly to the driving wheels of the vehicle.
  • the exhaust gases of the engine 2 set in motion a gas turbine 5, centrifugal, centripetal or axial, with one or more stages.
  • the turbine will drive the generator of electrical energy, energy that could be stored in the batteries or directly used for the drive.
  • the production of electrical energy is made independent from the endothermic engine.
  • it is provided an electronic control of the speed rate of the turbine by means of a suitable control unit allowing, above a certain predetermined threshold, to run the turbine itself at its optimum speed rate, for any ratio of the rotation speed rate of the turbine to that of the volumetric engine.
  • the electric motors 8 aiding the drive are usually fed directly by the generator; however, during the running, there may be provided phases in which the electric motors 8 are supplied via the batteries. This is possible, e.g., to improve vehicle performances in particularly critical phases such as ascents or times at which a higher pickup is required. Moreover, according to conventional schemes, the electric motors 8 could advantageously be exploited in deceleration stages, working as electrical energy generators .
  • one or more electronic control units 9 could be provided for managing the energy flows and the different operation modes that will be described hereinafter.
  • Such control units may reasonably be assumed - A - to lay within the reach of a person skilled in the art, therefore no description thereof will be provided, also because their implementation will depend each time on the specific applications desired.
  • the electrical energy supplied by the turbine-driven generator will suffice to do away with the traditional alternator for recharging the battery.
  • the electric motor by being connectable to the driving shaft of the endothermic engine, may also be used as a starter.
  • a vehicle fitted with an engine unit according to the present invention could advantageously start running driven by the sole electric motor, or by the sole endothermic engine, or by both.
  • the endothermic engine When driven by the sole electric motor, the latter will draw energy from the batteries and the vehicle speed will suffice for circulating in traffic restricted areas, in towns and in parking maneuvers . Upon reaching a certain speed, the endothermic engine can start running.
  • the power of the electric motor adds to the power of the endothermic engine, it will be possible to use smaller endothermic engines, and not oversized ones as is usually the case. Moreover, since the electric motor exhibits a remarkable torque right from low speed rates, advantageously there could be used an engine designed so as to exhibit an improved efficiency at higher speed rates, with an entailed sensible fuel saving in out-of- town running .
  • a vehicle fitted with an electric-turbo- compound engine unit according to the present invention may easily be turned into a 4x4 drive one, merely by connecting the endothermic engine to one of the shafts and the electric motor to the other shaft.
  • the electrical energy produced by the batteries could advantageously be used to feed an air compressor, to boost the endothermic engine.
  • An electrically driven compressor entails the advantage of keeping the boosting at optimal values with respect to the rotation speed rate and to the load of the endothermic engine, as well as of adjusting the same boosting in the acceleration and deceleration stages, to get round the known problem of the response delay of the traditionally boosted engines.
  • An electric-turbo-compound engine unit according to the present invention behaves almost like a two-shaft turbine with piston compressor. Hence, if exhaust valves are opened in advance and engine firing is delayed, gas at a higher temperature will reach the turbine developing a higher power, whereas the engine will decrease in power.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Supercharger (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

La présente invention concerne un groupe moteur pour véhicules hybrides et un véhicule hybride correspondant. De par sa conception, l'invention garantit un rendement élevé, une diminution notable de consommation, et une importante réduction des émissions polluantes.
EP06765653A 2005-04-07 2006-02-17 Groupe moteur pour vehicules hybrides Withdrawn EP1885574A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITTP20050001 ITTP20050001A1 (it) 2005-04-07 2005-04-07 Veicolo ibrido dotato di motore elettrico ed endotermico con turbina a gas e batterie elettriche.
ITTP20050003 ITTP20050003A1 (it) 2005-08-26 2005-08-26 Motore elettro turbo composito tendente a turbina a due assi
PCT/IB2006/050533 WO2006117701A2 (fr) 2005-04-07 2006-02-17 Groupe moteur pour vehicules hybrides

Publications (1)

Publication Number Publication Date
EP1885574A2 true EP1885574A2 (fr) 2008-02-13

Family

ID=37081607

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06765653A Withdrawn EP1885574A2 (fr) 2005-04-07 2006-02-17 Groupe moteur pour vehicules hybrides

Country Status (2)

Country Link
EP (1) EP1885574A2 (fr)
WO (1) WO2006117701A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20120075A1 (it) * 2012-03-09 2013-09-10 Antonio Beltrame Turbogeneratore a gas di scarico
GB2503713B (en) 2012-07-05 2018-08-01 Ford Global Tech Llc Engine assembly with an Exhaust Driven Turbine
EP2999865A4 (fr) 2013-02-15 2017-04-19 Alexander Wong Turbochargeur

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0211822A (ja) * 1988-06-29 1990-01-16 Isuzu Motors Ltd 回転電機付ターボチャージャの駆動装置
DE4439573A1 (de) * 1994-11-05 1996-05-09 Mtu Friedrichshafen Gmbh Verfahren zum Betrieb einer Brennkraftmaschine mit einem Abgasturbolader
DE10022113A1 (de) * 2000-05-06 2001-11-15 Daimler Chrysler Ag Hybridantrieb für Kraftfahrzeuge
DE10061796A1 (de) * 2000-12-12 2002-07-04 Man Nutzfahrzeuge Ag Verfahren zur Verbesserung des Ansprechverhaltens von Turboladern
DE10140120A1 (de) * 2001-08-16 2003-03-06 Bosch Gmbh Robert Verfahren und Vorrichtung zum Betreiben eines Verbrennungsmotors
US6931850B2 (en) * 2003-09-10 2005-08-23 The Regents Of The Univesity Of California Exhaust gas driven generation of electric power and altitude compensation in vehicles including hybrid electric vehicles

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006117701A2 *

Also Published As

Publication number Publication date
WO2006117701A2 (fr) 2006-11-09
WO2006117701A3 (fr) 2007-03-01

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