WO2010019527A2 - Systèmes et procédés d'alimentation d'accessoires dans des véhicules entraînés par moteur à l'aide d'unités d'alimentation de moteur auxiliaires - Google Patents

Systèmes et procédés d'alimentation d'accessoires dans des véhicules entraînés par moteur à l'aide d'unités d'alimentation de moteur auxiliaires Download PDF

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Publication number
WO2010019527A2
WO2010019527A2 PCT/US2009/053335 US2009053335W WO2010019527A2 WO 2010019527 A2 WO2010019527 A2 WO 2010019527A2 US 2009053335 W US2009053335 W US 2009053335W WO 2010019527 A2 WO2010019527 A2 WO 2010019527A2
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WO
WIPO (PCT)
Prior art keywords
engine
auxiliary
driven vehicle
systems
recited
Prior art date
Application number
PCT/US2009/053335
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English (en)
Other versions
WO2010019527A3 (fr
Inventor
Leon A. Burch
Original Assignee
Burch Leon A
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 Burch Leon A filed Critical Burch Leon A
Publication of WO2010019527A2 publication Critical patent/WO2010019527A2/fr
Publication of WO2010019527A3 publication Critical patent/WO2010019527A3/fr

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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
    • F02B73/00—Combinations of two or more engines, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
    • B60W10/184—Conjoint control of vehicle sub-units of different type or different function including control of braking systems with wheel brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/20—Conjoint control of vehicle sub-units of different type or different function including control of steering systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/30—Conjoint control of vehicle sub-units of different type or different function including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
    • 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
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
    • F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members

Definitions

  • the present invention relates to motorized or engine driven vehicles, and more particularly, to systems and methods for powering accessories on all types of engines using auxiliary engine power units.
  • Typical engine driven vehicles such as automobiles and trucks, include numerous auxiliary systems in addition to the drive train that require power.
  • auxiliary systems include, for example, cooling fans, coolant pumps, air conditioners, power steering systems, power brakes, air compressors, heaters, hydraulic systems, fans, refrigeration equipment, etc.
  • the auxiliary systems of an engine driven vehicle are usually coupled mechanically through belts, gears, or chains to take power from the main engine.
  • the liquid cooling system in most engines requires a pump to power the flow of cooling fluid through the main engine.
  • the water pump is often driven by a belt connected to the main engine.
  • the main engine As a result of being powered by the main engine, in order to run the heat and air conditioner, hydraulic systems, or other auxiliary systems, the main engine must be running even if the vehicle itself is not in motion. In many engine driven vehicles, such as commercial semi-trailer trucks, even idling the main engine provides power far in excess of the minimum necessary power to run the auxiliary systems.
  • auxiliary systems such as an air conditioner
  • ready-mix concrete trucks include a rotatable mixing drum for holding a quantity of ready-mix concrete.
  • the engine also provides the power to an auxiliary system that rotates the mixing drum, typically by way of a mechanical or hydraulic linkage.
  • transit tracks are operated for approximately ten hours per day, if not more. While much of the time is spent traveling between a concrete mixing plant and a jobsite, a large percentage of the that time is spent waiting at a jobsite to pour the concrete, and in time actually pouring the concrete.
  • auxiliary systems are mechanically coupled to the main engine of an engine driven vehicle to operate and consume power at all times when the main engine is running, even if they are not needed. For example, in the case of cooling fans it may not be necessary to drive a given cooling fan when the vehicle is traveling at freeway speeds since the airflow through the engine is often adequate for cooling purposes without the fan
  • the subject invention is directed to a new and useful auxiliary power system for providing power to auxiliary systems of an engine driven vehicle independent of whether a main engine thereof is running.
  • the system includes an auxiliary engine configured and adapted to be operatively connected an engine driven vehicle.
  • An alternator is operatively connected to the auxiliary engine to convert mechanical power from the auxiliary engine into electrical power.
  • a battery is electrically connected to the alternator for receiving and storing electrical power from the alternator.
  • An electric motor is connected electrically to the battery for powering at least one auxiliary system of the engine driven vehicle independent of whether a main engine of the engine driven vehicle is running.
  • the at least one auxiliary system can include at least one of the following: a power steering system, a power brake system, an air compressor, a cooling fan, a water coolant pump, an air conditioner, a hydraulic system, a Pelletier cooler, an oil pump, a refrigeration unit, and/or any other suitable auxiliary system.
  • the auxiliary engine is configured and adapted to run on fuels including gasoline, diesel, E85, Propane, Butane, and/or Jet A.
  • the auxiliary engine can be a rotary engine, or any other suitable type of engine.
  • the main engine and an auxiliary engine share a common liquid cooling circuit.
  • the common liquid cooling circuit can include a bypass for heating a cabin of the engine driven vehicle.
  • the auxiliary engine can be connected through a heat exchanger to maintain at least a minimum temperature in the main engine with the main engine shut down, provide heat for driver comfort, and/or to preheat fuel for the main engine.
  • one or more auxiliary systems can be configured to run intermittently on demand. Moreover, at least one of the auxiliary systems can be configured to run at a variable speed depending on demand. The auxiliary engine can be configured to run on demand
  • the main engine can include a redundant alternator in addition to the alternator of the auxiliary engine.
  • the main alternator can be connected to the battery as a back up in case the auxiliary engine (or its alternator) fails.
  • the battery can be a lithium type battery, or any other suitable type of high performance battery or other means of storing electrical energy.
  • At least one auxiliary system can include a concentric variable displacement pump.
  • At least one of the auxiliary systems can advantageously be provided in the form of a quick change module configured to be changed out for repair/replacement independent of other systems of the engine driven vehicle.
  • the invention also includes a method of retrofitting an engine driven vehicle to provide for powering its auxiliary systems independent of whether the main engine is running.
  • the method includes disconnecting a belt, gear, chain, or otherwise mechanically driven portion of an auxiliary system from a main engine of an engine driven vehicle.
  • the method further includes installing an auxiliary engine and electrical system for powering auxiliary systems independent of whether the main engine is running.
  • the method also includes connecting at least one electric motor to drive a mechanically driven portion of at least one auxiliary system.
  • the step of disconnecting at least one auxiliary system from the main engine can include removing an auxiliary system from the main engine entirely, and the step of connecting at least one electric motor can include installing a replacement auxiliary system to take the place of the removed auxiliary system, wherein the replacement auxiliary system is connected to be driven by the corresponding electric motor.
  • an existing auxiliary system can be disconnected from the main engine without removing the existing auxiliary system altogether, in which case, an electric motor can be connected to drive the existing auxiliary system.
  • the step of installing an auxiliary engine and electrical system can include augmenting or replacing an existing battery system connected to the main engine.
  • the step of installing an auxiliary engine and electrical system can include installing at least one auxiliary system having a quick change module.
  • the method can also include joining water cooling systems of the main and auxiliary engines into a single common water cooling system.
  • the invention also provides a method of powering an auxiliary system of an engine driven vehicle.
  • the method includes driving an alternator to generate electrical power.
  • a battery is charged with at least a portion of the electrical power.
  • An electric motor is powered with the battery to drive an auxiliary system of an engine driven vehicle.
  • Fig. 1 is a schematic view of a portion of a conventional engine driven vehicle, showing the main engine connected to power the drive train as well as multiple auxiliary systems;
  • Fig. 2 is a schematic view of an exemplary embodiment of a system constructed in accordance with the present invention, showing an auxiliary engine, alternator, battery, and electric motors connected to drive auxiliary systems independent of whether the main engine is running.
  • FIG. 2 a partial view of an exemplary embodiment of a system in accordance with the invention is shown in Fig. 2 and is designated generally by reference character 100.
  • the systems, devices, and methods of the invention can be used to provide power to auxiliary systems of engine driven vehicles independent of whether the main engine is running.
  • a conventional engine driven vehicle system 10 is shown schematically.
  • An engine 12 connects to wheels 16 through a drive train 14.
  • Engine 12 and drive train 14 are generally fixed in place within a chassis. In this manner, Engine 12 can provide power to wheels 16 to drive the vehicle.
  • Engine 12 also includes means such as belts, chains, gears, etc., connecting engine 12 to a plurality of auxiliary systems 18-28. Examples of typical auxiliary systems include water pumps for use in cooling engine 12, power steering and/or brake systems, air compressors, hydraulic systems, air conditioners and/or other climate control systems, refrigeration systems, cooling fans, etc.
  • auxiliary systems 18-28 are exemplary and those skilled in the art will readily appreciate that any number of auxiliary systems can be included, and that a wide variety of different kinds of auxiliary systems can be used beyond to the examples specifically pointed out above. Since engine 12 powers auxiliary systems 18-28, if a driver needs to use even just one of auxiliary systems 18-28 when the vehicle is stopped, the driver must keep engine 12 running. This leads to the disadvantages and inefficiencies described above. Moreover, when the vehicle is moving, some of the auxiliary systems 18-28 may only be needed intermittently, or may only be needed at partial power, but they nonetheless ran continuously at full power because of the
  • Fig. 2 shows a schematic of a portion of a vehicle 100 having an exemplary embodiment of an auxiliary power system 132 constructed in accordance with the present invention for providing power to auxiliary systems 118-128 of vehicle 100 independent of whether main engine 102 of vehicle 100 is running, and independent of how hard main engine 102 is running.
  • Main engine 102 drives wheels 106 through drive drain 104, much as described above, however main engine 102 does not need to drive any auxiliary systems.
  • System 132 includes an auxiliary engine 108 operatively connected to vehicle 100.
  • An alternator 110 is connected to auxiliary engine 108 so as to convert mechanical power from auxiliary engine 108 into electrical power.
  • a battery 112 is electrically connected to alternator 110. Battery 112 receives and stores electrical power from alternator 110.
  • Electric motors 116a- 116f are connected electrically to battery 112 for powering auxiliary systems 118-128, respectively.
  • Auxiliary systems 118-128 can therefore operate independent of main engine 102.
  • System 132 makes it possible to use any or all of auxiliary systems 118-128 even when main engine 102 is shut down. This also means that any one of auxiliary systems 118-128 can be run intermittently as needed independent of the other auxiliary systems. System 132 also allows for running any or all of auxiliary systems 118- 128 at variable power levels, depending on demand, rather than always running at full power when in use.
  • Auxiliary systems 118-128 can include a power steering system, a power brake system, an air compressor, a cooling fan, a water coolant pump (denoted as 128 in Fig. 2, as will be described below in greater detail), an air conditioner, a hydraulic system, a Pelletier cooler, a hydraulic pump, a refrigeration unit, and/or any other suitable auxiliary system. While shown in Fig. 2 as having six auxiliary systems, those skilled in the art will readily appreciate that system 132 can be used in conjunction with as few as one auxiliary system, or with any number greater or less than six auxiliary systems without departing from the spirit and scope of the invention.
  • Auxiliary engine 108 can be advantageously configured to run on fuels including gasoline, diesel, E85, Propane, Butane, and/or Jet A.
  • Auxiliary engine 108 can be a rotary engine, which gives the advantage of light weight given the available power that can be produced. Suitable rotary engines for this purpose include the engines in the RotaMax 650, 1300, and 1300 Turbo line available from RotaMax Inc. of Arlington, Ohio. 60 hp is a reasonable amount of power for typical operation of auxiliary systems, however depending on the specific loads involved for a given system, more or less power may be needed.
  • any suitable type of engine can be used, and that any fuel type can be used without departing from the spirit and scope of the invention.
  • auxiliary engine 108 is used to charge battery 112, it is contemplated that auxiliary engine 108 can advantageously operate under a substantially constant load, allowing for efficiency and low emissions. It is also contemplated that a fuel cell can be used instead of auxiliary engine 108 and alternator 110 to charge battery 112.
  • Main engine 102 and auxiliary engine 108 share a common liquid cooling circuit 130 driven by water pump 128.
  • Water pump 128 can therefore circulate coolant through both engines. This sharing of a cooling circuit is optional but can be advantageous in the winter, for example.
  • main engine 102 shuts down, e.g., while the driver is sleeping, auxiliary engine
  • cooling circuit 130 functions as a heat exchanger to keep main engine 102 warm.
  • System 132 can also be readily adapted to circulate other fluids, including exhaust from auxiliary engine 108, through one or more heat exchangers to warm engine 102 above a minimum temperature and/or preheat fuel for engine 102.
  • Cooling circuit 130 can include a bypass (not shown in Fig. 2 for sake of clarity) for heating a cabin of vehicle 100.
  • Battery 112 can be a lithium type battery, any other suitable type of battery or high performance battery, or other means of storing electrical energy. Moreover, while described in the singular, battery 112 can also include a plurality of batteries.
  • Auxiliary engine 108 need not run continuously, but can run on demand as much as needed to maintain a minimum charge in battery 112.
  • Main engine 102 includes a main alternator 114 in addition to alternator 110 of auxiliary engine 108.
  • Main alternator 114 is connected to battery 112.
  • main alternator 114 is an optional redundancy that can be included advantageously as a back up in case auxiliary engine 108 and/or alternator 110 fails. It is also possible to include a redundant battery connected to alternator 110 and or main alternator 114 for powering auxiliary systems 118-128 in case battery 112 fails.
  • Other means of charging battery 112 are also contemplated. For example, battery 112 could get a full charge from the main engine's alternator, and/or from regenerative braking , etc., during transit.
  • Auxiliary engine 108 would then only be needed if the main engine stops long enough for the battery to drain below a certain level. Also, in cases where auxiliary systems are only needed when the main engine is running, it is contemplated that the auxiliary systems can be run electrically off of a battery charged by the main engine, without the need for an auxiliary engine.
  • auxiliary systems 118-128 can advantageously be provided in the form of a quick change module configured to be changed out for repair/replacement independent of other systems of vehicle 100.
  • This advantage is a result of the fact that auxiliary systems 118- 128 do not need to be connected to be mechanically driven by main engine 102. As a result, it is not even necessary for the auxiliary systems to be located in close proximity to engine 102.
  • any part of system 132 or auxiliary systems 118-128 could be located at the rear of vehicle 100 even if main engine 102 is in the front.
  • Auxiliary systems 118-128 can thus be located virtually anywhere on vehicle 100 for convenient access.
  • auxiliary systems 118-128 can also be provided as quick change modules that can be removed/installed with little or no need to involve or remove others systems(s) or components of vehicle 100.
  • use of system 132 includes driving alternator 110 to generate electrical power.
  • Battery 112 is charged with at least a portion of the electrical power generated by alternator 110.
  • One or more electric motors 116a- 116f are powered by battery 112 to drive their respective auxiliary systems 118-128 of engine driven vehicle 100. It is possible for alternator 110 to directly power one or more electric motors 116a-l 16f, for example, when battery 112 is fully charged. It is also contemplated that a single electric motor (e.g. 116a) can be connected to drive more than one auxiliary system. It is further contemplated that accessories/auxiliary systems previously powered by hydraulics can be powered electrically instead of by hydraulics, eliminating the need for carrying hydraulic fluids.
  • retrofitting includes disconnecting a
  • Retrofitting further includes installing an auxiliary engine (e.g. auxiliary engine 108) and electrical system (e.g. alternator 110, and/or battery 112) for powering auxiliary systems independent of whether the main engine is running.
  • the method also includes connecting at least one electric motor (e.g. electric motors 116a-l 16f) to drive a mechanically driven portion of at least one auxiliary system (e.g. auxiliary systems 118-128 and/or 18-28).
  • one or more auxiliary systems can be completely removed from the main engine. If any auxiliary systems are completely removed, they can be replaced with new systems, in the form of replacement systems, quick change modules, and/or upgrades, for example, which are in turn connected to corresponding electric motors. It is also envisioned that a driver (e.g., belt drive, gear drive, chain drive, etc.) of an existing auxiliary system can be disconnected from the main engine without necessarily removing the existing auxiliary system altogether. In such a case, an electric motor can simply be connected to drive the existing auxiliary system.
  • the existing battery of the main engine (if any) can be augmented with one or more additional batteries or can be replaced entirely with a battery system connected to store energy provided by the alternator of the auxiliary engine.
  • a retrofit can also include joining water cooling systems of the main and auxiliary engines into a single common water cooling system, to provide the benefits described above.
  • engine driven vehicles including semi-trailer trucks, ready- mix trucks, earth movers, excavation, other types of construction and agricultural as well stationary and/or industrial engines driving accessories off of the main engine.

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

Abstract

L'invention porte sur un système d'alimentation auxiliaire qui fournit une alimentation à des systèmes auxiliaires d'un véhicule entraîné par moteur, indépendamment du fait qu'un moteur principal fonctionne ou non. Le système comprend un moteur auxiliaire avec un alternateur connecté de façon opérationnelle à celui-ci pour convertir une puissance mécanique provenant du moteur auxiliaire en une puissance électrique. Une batterie est électriquement connectée à l'alternateur pour recevoir et stocker de l'énergie électrique provenant de l'alternateur. Un moteur électrique est connecté à la batterie pour alimenter au moins un système auxiliaire du véhicule entraîné par un moteur, indépendamment du fait que le moteur principal du véhicule entraîné par un moteur fonctionne. Un véhicule entraîné par un moteur existant peut être équipé en mise à niveau d'un tel système pour bénéficier de ses avantages.
PCT/US2009/053335 2008-08-15 2009-08-11 Systèmes et procédés d'alimentation d'accessoires dans des véhicules entraînés par moteur à l'aide d'unités d'alimentation de moteur auxiliaires WO2010019527A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8924208P 2008-08-15 2008-08-15
US61/089,242 2008-08-15

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WO2010019527A2 true WO2010019527A2 (fr) 2010-02-18
WO2010019527A3 WO2010019527A3 (fr) 2010-05-06

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103723052A (zh) * 2013-12-31 2014-04-16 北京理工大学 一种电动客车电动化辅助系统的能量管理方法
US9627951B2 (en) 2012-06-23 2017-04-18 Kevin Schawitsch Electric power system with regeneration
US9771165B2 (en) 2015-06-25 2017-09-26 Pratt & Whitney Canada Corp. Compound engine assembly with direct drive of generator
US10590842B2 (en) 2015-06-25 2020-03-17 Pratt & Whitney Canada Corp. Compound engine assembly with bleed air
US10696417B2 (en) 2015-06-25 2020-06-30 Pratt & Whitney Canada Corp. Auxiliary power unit with excess air recovery
US10710738B2 (en) 2015-06-25 2020-07-14 Pratt & Whitney Canada Corp. Auxiliary power unit with intercooler

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005344690A (ja) * 2004-06-07 2005-12-15 Toyota Motor Corp 車両用補機駆動装置
JP2006002769A (ja) * 2004-06-17 2006-01-05 Man B & W Diesel Gmbh エンジン設備
WO2007085765A1 (fr) * 2006-01-25 2007-08-02 Renault S.A.S. Groupe motopropulseur a moteur auxiliaire raccorde sur un arbre intermediaire de la boite de vitesses

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005344690A (ja) * 2004-06-07 2005-12-15 Toyota Motor Corp 車両用補機駆動装置
JP2006002769A (ja) * 2004-06-17 2006-01-05 Man B & W Diesel Gmbh エンジン設備
WO2007085765A1 (fr) * 2006-01-25 2007-08-02 Renault S.A.S. Groupe motopropulseur a moteur auxiliaire raccorde sur un arbre intermediaire de la boite de vitesses

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9627951B2 (en) 2012-06-23 2017-04-18 Kevin Schawitsch Electric power system with regeneration
CN103723052A (zh) * 2013-12-31 2014-04-16 北京理工大学 一种电动客车电动化辅助系统的能量管理方法
US9771165B2 (en) 2015-06-25 2017-09-26 Pratt & Whitney Canada Corp. Compound engine assembly with direct drive of generator
US9994332B2 (en) 2015-06-25 2018-06-12 Pratt & Whitney Canada Corp. Engine assembly with direct drive of generator
US10501200B2 (en) 2015-06-25 2019-12-10 Pratt & Whitney Canada Corp. Engine assembly for an auxiliary power unit
US10590842B2 (en) 2015-06-25 2020-03-17 Pratt & Whitney Canada Corp. Compound engine assembly with bleed air
US10696417B2 (en) 2015-06-25 2020-06-30 Pratt & Whitney Canada Corp. Auxiliary power unit with excess air recovery
US10710738B2 (en) 2015-06-25 2020-07-14 Pratt & Whitney Canada Corp. Auxiliary power unit with intercooler
US11584539B2 (en) 2015-06-25 2023-02-21 Pratt & Whitney Canada Corp. Auxiliary power unit with intercooler

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