EP2237984A2 - Hybrid vehicle for transportation of a refrigerated commercial load - Google Patents

Hybrid vehicle for transportation of a refrigerated commercial load

Info

Publication number
EP2237984A2
EP2237984A2 EP08869585A EP08869585A EP2237984A2 EP 2237984 A2 EP2237984 A2 EP 2237984A2 EP 08869585 A EP08869585 A EP 08869585A EP 08869585 A EP08869585 A EP 08869585A EP 2237984 A2 EP2237984 A2 EP 2237984A2
Authority
EP
European Patent Office
Prior art keywords
equipment
refrigerating
hybrid vehicle
battery set
battery
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Withdrawn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
EP08869585A
Other languages
German (de)
French (fr)
Inventor
Richard Valayer
Michel Lou Mottier
Michael Millet
Philippe Le Brusq
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.)
Renault Trucks SAS
Original Assignee
Renault Trucks SAS
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 PCT/IB2007/004476 external-priority patent/WO2009083751A1/en
Priority claimed from PCT/IB2007/004471 external-priority patent/WO2009083750A1/en
Application filed by Renault Trucks SAS filed Critical Renault Trucks SAS
Publication of EP2237984A2 publication Critical patent/EP2237984A2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
    • B60W30/18—Propelling the vehicle
    • B60W30/188—Controlling power parameters of the driveline, e.g. determining the required power
    • B60W30/1886—Controlling power supply to auxiliary devices
    • 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
    • B60K25/00—Auxiliary drives
    • 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
    • B60K6/22—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 apparatus, components or means specially adapted for HEVs
    • B60K6/28—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 apparatus, components or means specially adapted for HEVs characterised by the electric energy storing means, e.g. batteries or capacitors
    • 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
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B60L1/003—Supplying electric power to auxiliary equipment of vehicles to auxiliary motors, e.g. for pumps, compressors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B60L1/006—Supplying electric power to auxiliary equipment of vehicles to power outlets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/20—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, 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
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • 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
    • B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
    • B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F3/00—Vehicles particularly adapted for collecting refuse
    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
    • B60K2001/005—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric storage means
    • 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
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • 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
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/24—Energy storage means
    • B60W2510/242—Energy storage means for electrical energy
    • B60W2510/244—Charge state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/14—Trucks; Load vehicles, Busses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/14—Trucks; Load vehicles, Busses
    • B60Y2200/144—Garbage trucks, e.g. refuse trucks
    • 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
    • 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
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/84—Data processing systems or methods, management, administration
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/10—Waste collection, transportation, transfer or storage, e.g. segregated refuse collecting, electric or hybrid propulsion

Definitions

  • the invention is directed to hybrid vehicles comprising an internal combustion engine as well as an electric drive motor, the electric drive motor and the combustion engine being used alternatively or in conjunction for driving the vehicle. While running, the internal combustion engine drives an electric generator providing electricity which can be used for charging a driving battery set. This kind of vehicle is used for many applications such as personal cars or commercial vehicles or trucks.
  • the invention is more particularly directed to hybrid vehicle for transportation of a refrigerated commercial load BACKGROUND OF THE INVENTION
  • body builder equipment includes thermally insulated compartment or body which may be of various types and forms.
  • the body builder equipment includes also a refrigerating unit adapted to refrigerate and keep the insulated compartment at a preset temperature.
  • the refrigerating unit generally comprises a compressor working in a closed loop of refrigerant. The energy needed to power such compressor is quite high, so that in conventional vehicles, it cannot be provided by the conventional on-board electric circuit and is necessarily provided through a mechanical power take-off powered by the internal combustion engine.
  • this energy is generally provided using a mechanical power take-off set on the driveline or directly driven by the internal combustion engine, the mechanical take-off driving the compressor.
  • the main drawback of such mechanical power take-off is that power available depends directly of the load of the engine or the drive system. Furthermore when the vehicle is parked and, if the vehicle engine is stopped, there is no power available for the refrigerating unit so it is necessary either to forbid the shut down of the main engine when a commercial load is carried or to provide the refrigerating unit with a secondary internal combustion engine driving the compressor. Neither of these two solutions is fully satisfactory because, when the main engine is used for driving the compressor while the vehicle is not moving, this induces extra fuel consumption as the main engine is not designed to drive efficiently such a small load.
  • the invention concerns a hybrid vehicle for transportation of a refrigerated commercial load comprising:
  • a drive system comprising at least :
  • a driving battery set which comprises at least a driving battery and which is connected to the driving circuit
  • an electrical refrigerating equipment which is adapted to refrigerate the insulated compartment and which comprises a refrigerating control unit and an equipment electric motor driving a refrigerating compressor, the equipment electric motor and the refrigerating compressor being both mechanically decoupled from the drive system;
  • an equipment battery set which is distinct from the driving battery set and which comprises at least an equipment battery
  • - an equipment converter which interconnects the equipment circuit, the equipment battery set and the equipment electric motor and which is adapted to provide electrical power to the equipment electric motor and to charge the equipment battery set
  • - equipment control means which are adapted to control at least the equipment converter and the refrigerating equipment.
  • the mechanical energy or the power for the refrigerating system is clearly independent from the engine or the drive system load as the converter is adapted to adjust the torque and/or the speed output of the equipment electric motor.
  • the implementation of the battery equipment set allows the compressor to be always driven by the same equipment motor even when the engine is stopped, such equipment motor being less noisy than any internal combustion engine.
  • an equipment circuit with an equipment battery dedicated to the power supply of the refrigerating equipment allows to fine tune the use of the energy available in order to reduce the fuel consumption.
  • the implementation of the equipment battery set allows also a fine tuning of the recuperation of energy as it possible to adjust the state of charge of both the driving battery set and the equipment battery set so that, for example, any of those is always available for accumulating the electric power recovered during slowing down phases of the movement of the hybrid vehicle.
  • the hybrid vehicle may comprise any kind energy providing unit consuming fuel such as an internal combustion engine or a fuel cell.
  • the hybrid vehicle further comprises a refrigerating structure which contains or supports at least:
  • the refrigerating structure may also support the equipment converter.
  • the refrigerating structure may further support at least a part of the equipment control means.
  • the refrigerating structure may be situated on various locations of the hybrid vehicle.
  • the refrigerating structure is adjacent to the thermally insulated compartment.
  • the refrigerating structure may be situated in front of the insulated compartment with respect to the forward direction of the hybrid vehicle.
  • the refrigerating structure is fixed to the insulated body.
  • the refrigerating structure may comprise one or several chassis or compartments joined together.
  • the equipment control means may implement any appropriate design.
  • the equipment control means may, for example, comprise a body builder interface and controller controlling at least the equipment converter and receiving information or instructions from a refrigerating control unit controlling the refrigerating equipment in order to maintain a given temperature within the insulated compartment.
  • the equipment control means may also comprise a physical interface for interconnecting the control means to a communication network of the hybrid vehicle enabling communication between the control means and a control unit of the hybrid vehicle.
  • the body builder interface and controller and the refrigeration control unit may be two separate units but can also be embedded in a same control unit implementing their functions. Such control unit can also be embedded in the equipment converter.
  • the invention concerns also a refrigerating unit for a hybrid vehicle according to the invention, said refrigerating comprising a structure carrying:
  • the refrigerating unit further comprises:
  • an equipment converter adapted to charge the equipment battery set and to provide electrical energy to the equipment electric motor
  • - equipment control means adapted to control the equipment converter and the refrigerating unit and to communicate with a control unit of the hybrid vehicle
  • Such refrigerating unit can be provided as a kit to the body builder who will only have to adapt it on the vehicle in relation with the insulated compartment.
  • the equipment converter is provided with an off-board plug for deriving electrical energy from an external network.
  • the implementation of such electrical converter with an off-board plug is more particularly useful for refrigerated hybrid vehicles having short driving periods of use compared to parking periods during which the refrigerated hybrid vehicles stay still as it is the case for refrigerated vehicles used for dispatching refrigerated goods in day time and being loaded during night time.
  • the control of the equipment converter achieved by the equipment control means may be done in several ways depending on several parameters.
  • the body builder interface and controller and the drive system control unit might be adapted to give priority to providing energy to the driving system when the vehicle is moving.
  • the equipment control means may also be adapted to give priority to providing power to the equipment circuit when the temperature in the thermally insulated compartment is bellow a threshold value or security value.
  • the drive system comprises a drive system control unit which is adapted to: - determine a level of power available from the engine unit and/or the motor system;
  • the equipment control unit is adapted to :
  • the cost of energy can comprise at least two levels corresponding to energy being free or of very low cost and to energy very expensive.
  • the energy free level will correspond for example to braking phases or slowing down phases of the vehicle with the driving battery set highly charged. In such conditions there is plenty of electricity to be used, which cannot be stored in the driving battery set.
  • the energy very expensive level will correspond for example to phases during which the vehicle is electrically driven, or during which the electric drive system provides torque-assist to the engine system, or during which the state of charge of the driving battery is too low.
  • the cost of energy information provided by the drive system control unit may comprises more levels of energy cost allowing to take into consideration more accurately the functioning phases of the drive system.
  • the equipment control means may be adapted to set the output level of the equipment converter according to a power required by refrigerating unit as determined by the equipment control means.
  • the output level of the equipment converter will take at least two values corresponding respectively to: full power and low power.
  • the body builder interface and controller may also be adapted to set the output level of the equipment converter according to information of faulty component either in the drive system or in the body builder equipment.
  • the hybrid vehicle further comprises equipment battery set sensing means adapted to provide at least a state of charge of the equipment battery set; and equipment converter is adapted to charge the equipment battery set whereas the equipment control means are adapted to control the equipment converter according also to the state of charge of the equipment battery set.
  • the hybrid vehicle comprises a service circuit providing electricity at least to the engine unit.
  • the service circuit may also provide energy to some vehicle accessories.
  • these vehicle accessories powered by the service circuit encompass electrical accessories dedicated to the moving or traveling functions of the vehicle including security functions essential to the vehicle displacements as well as comfort functions for the drivers and eventually the passengers.
  • the service circuit does not provide electricity to heavy duty equipments installed by the body builder such as the refrigerating unit. Nevertheless the service circuit may provide energy to low consumers of the body builder equipment such as control units.
  • the heavy duty equipment other than the refrigerating compressor or unit may include powered elevating tailgates or tippable platforms facilitating the loading and unloading of the insulated compartment. According to the invention, these other heavy duty equipments, if implemented, would be powered by either the equipment converter or directly the equipment battery set.
  • the service circuit may also comprise a service battery set which comprises at least one service battery.
  • the various battery sets of the hybrid vehicle may be of various types provided they are perfectly adapted to their specific use. According to a preferred form of implementation of the invention:
  • the equipment battery set is of a medium nominal voltage, preferably being in the range of 84 V to 810 V
  • the driving battery set is of a high nominal voltage or of a medium nominal voltage, preferably being in the range of 120 V to 1000 V, According to an aspect of the invention:
  • each driving battery is a battery with a low internal resistance optimized for efficient low duration high current output
  • each equipment battery is a battery optimized for deep cyclic uses and for total energy capacity or a battery with a low or medium internal resistance optimized for efficient low or medium duration high current output.
  • the service battery set is of a low nominal voltage, preferably being in the range of 12 V to 72 V.
  • each service battery is a battery optimized for deep cyclic uses and for total energy capacity or a battery of a dual type being a compromise between an energy battery and a power battery.
  • FIG. 1 is a schematic external view of a hybrid vehicle for transportation of a refrigerated commercial load according to the invention.
  • FIG. 1 is schematic functional view of the hybrid vehicle shown on figure 1.
  • a hybrid vehicle As illustrated on figure 1 , a hybrid vehicle according to the invention, designated as a whole by reference 1 , comprises a wheeled chassis W equipped with a driving cab C and a thermally insulated compartment or body B.
  • the insulated compartment B may be of any type and is designed according to the type of refrigerated commercial load it should transport.
  • the hybrid vehicle 1 further comprises a drive system D which includes an internal combustion engine unit 2 powering a mechanical driveline 3.
  • the internal combustion engine unit 2 is associated with an engine electronic control unit 4 providing at least a state of the engine unit 2 to a drive system control unit 16.
  • the drive system D comprises also an electric drive motor system 5 which is as well operatively connected to the driveline 3.
  • the electric drive motor system is associated with a motor electronic control unit 6 connected to the drive system control unit 16.
  • the drive system D can be of different types such as a parallel or series type or implement a planetary gear.
  • the electric drive motor system 5 may comprise a single electric motor or a plurality of electric motors combined with a single electric generator or a plurality of electric generators in order to recover energy during slowing phases of the hybrid vehicle.
  • the electric motor and the electric generator may be mutually separate, they also can be combined as a single motor/generator which selectively functions as an electric motor or an electric generator.
  • the hybrid vehicle 1 comprises a driving circuit 7 which provides electricity at least to the electric drive motor system 5 and which comprises a driving battery set 8 comprising at least one driving battery not shown.
  • the driving battery set 8 may of course comprise a plurality of driving batteries either connected in series or in parallel depending on capacity or the nominal voltage of the driving battery set.
  • the driving battery set is preferably of a medium or a high nominal voltage, for example being in the range of 120 V to 1000 V. Furthermore, each driving battery is preferably a battery with a low internal resistance optimized for efficient low duration high current output.
  • the hybrid vehicle 1 comprises driving battery set sensing means 9 adapted to provide at least the state of charge of the driving battery set 8 to the drive system control unit 16.
  • the hybrid vehicle 1 also comprises a service circuit 10 as well as an equipment circuit 11.
  • the service circuit 10 provides electricity at least to the engine unit 2 but also to other electrical consumers 12 schematically depicted as a light bulb on the figures.
  • the service circuit 10 comprises a service battery set 13 which comprises at least one service battery not individually shown on the figures.
  • the service battery set 13 is of a low nominal voltage, for example being in the range of 12 V to 72 V.
  • Each service battery is preferably a battery optimized for deep cyclic uses and for total energy capacity but can also be of a dual type being a compromise between an energy battery and a power battery.
  • the service circuit 10 further comprises an electric generator operatively connected to the engine unit 2 and therefore driven by internal combustion engine unit 2.
  • the service circuit 10 is also connected to the driving circuit 7 through a driving converter 15.
  • the driving converter 15 mainly works as a step- down converter lowering voltage of the driving circuit 10 in order to provide electricity to the service circuit 7 and more particularly in order to charge the service battery set 8.
  • the driving converter 15 can also be of a step-up/step- down type in order to reciprocally derive power from the service circuit 10 for providing electricity to the driving circuit 7.
  • the vehicle further comprises an electrical equipment E which comprises, according to the illustrated example, an electrical refrigerating equipment RE which cools or refrigerates the insulated compartment B.
  • the refrigerating equipment RE implements the very well knows principle of compression and expansion of a refrigerant fluid in a close loop circuit not shown. Therefore, the electrical refrigerating equipment RE comprises a refrigerating compressor 17 and an equipment electric motor 18 adapted to drive the refrigerating compressor 17.
  • the equipment system E further comprises an equipment battery set 21 in order to provide electricity at least to the equipment electric motor 18 in an autonomous manner.
  • the equipment battery set 21 comprises at least one equipment battery and generally more than one equipment battery depending on the nominal voltage of the equipment battery set 21.
  • the equipment battery set is of a medium nominal voltage being for example in the range of 84 V to 810 V.
  • Each equipment battery is either a battery with a low or medium internal resistance optimized for efficient low or medium duration high current output or a battery optimized for deep cyclic uses and total energy capacity depending on the type of equipment implemented by the bodybuilder. All the batteries of the equipment battery set are preferably of the same type.
  • the hybrid vehicle 1 comprises equipment battery set sensing means 22 adapted for providing a state of charge of the equipment battery set 21.
  • the body builder equipment system E comprises an equipment converter 23 which interconnects the equipment circuit 11 , the equipment battery set 21 and the equipment motor 18.
  • the equipment converter 23 is adapted to step- down or step-up the voltage of the driving circuit 7 in order to provide electricity to the equipment motor 18 so as to control its power and thus the working conditions of the refrigerating compressor 17.
  • the equipment converter 23 is also adapted to charge the equipment battery set 21.
  • the hybrid vehicle 1 comprises equipment control means ECM.
  • the equipment control means ECM comprise a body builder interface and controller 25 which comprises electronic communication and control means.
  • the body builder interface and controller 25 is associated with a physical interface 26 enabling an easy connection to the drive system 16.
  • the body builder interface and controller 25 is also connected to a refrigerating control unit 28 which controls all the refrigerating functions such as the temperature regulation inside the insulated compartment B.
  • the refrigerating control unit 27 provides also to the body builder interface 25 information or instruction concerning the power required for the refrigerating compressor 17.
  • the body builder interface and controller 25 controls the equipment converter 23 so as to regulate the mechanical power available from the motor 18 to drive the compressor.
  • the body builder interface and controller 25 is connected to the converter 23 and preferably, but not necessarily, also to the equipment motor 18 and to the bodybuilder equipment refrigerating control unit 27.
  • the connection between the body builder interface and controller 25 and these various elements including the drive system 16 can be direct wire connection as shown, or implement a Controller Area Network (CAN) well-known by the man skilled in the art.
  • CAN Controller Area Network
  • the hybrid vehicle 1 comprises a dedicated structure RC being here a compartment containing the main elements of the electrical refrigerating equipment RE.
  • This refrigerating compartment RC is on the shown example adjacent to the insulated compartment B and situated in front of it respective to the forward travel direction of the vehicle 1. This situation above the drive cab C allows good ventilation and cooling of the refrigerating equipment RE.
  • the refrigerating structure RC is preferably fixed to the insulated compartment B, by any suitable fastening means.
  • the refrigerating structure RC supports more particularly the following components of the electrical equipment E: the refrigerating compressor 17; the motor 18, the equipment battery set 21 , the equipment converter 23 and at least a part of the equipment control means ECM being here the body builder interface and controller 25 and the refrigerating control unit 27.
  • the refrigerating compartment RC may also support some other components, not shown, of the refrigeration equipment such as a condenser and an evaporator associated with an electrical air circulator for cooling the inside of the insulated compartment B.
  • the refrigerating compartment RC will be, at least in part, in air communication with the insulated compartment B and might also extent is said insulated compartment B.
  • the refrigerating compartment RC is provided with the physical interface 26 for connecting the equipment control means ECM to the control unit 16 or to a communication network of the hybrid vehicle 1.
  • the refrigerating compartment RC is also provided with a physical interface 30 adapted to connect the refrigerating unit or equipment E to the equipment circuit 11 of the hybrid vehicle 1.
  • the physical interface 30 connects two parts of the equipment circuit 11 between the driving circuit 7 and the equipment converter 23.
  • the physical interfaces 26 and 30 may comprise any suitable kind of connectors.
  • refrigerating structure or compartment RC as described above may be provide as a whole to the body builder for installation on the hybrid vehicle 1.
  • the equipment control means ECM and here the body builder interface and controller 25 may control the equipment converter 23 according to the state of the drive system D.
  • the equipment control means ECM may also be adapted to optimize the repartition of the energy during slowing phases of the hybrid vehicle as well as the repartition of the electric power provided by the electric generator 14 when the internal combustion engine 2 is running.
  • the equipment control unit ECM may also be adapted so as to give priority to providing energy to the driving battery set when the vehicle is moving, meaning shutting down the equipment converter 23 when there is no need of power for the equipment system, such situation corresponding to an information of low power available given by the drive system control unit 16.
  • Such low power available information can correspond either to the vehicle moving or to a low state of charge of the driving batteries.
  • the body builder interface and controller 25 will set the output of the equipment converter 23 at a medium power when the level of power available given by the drive system control unit 16 is at medium value. This medium level can correspond for example to a state of charge of the driving battery set 8 being at an intermediate level.
  • the body builder interface and controller 25 will set the output of the equipment converter 23 at a full power when the level of power available is high and the needs of the refrigerating equipment RE is also high.
  • the body builder interface and controller 25 can also be adapted to give priority to provide power to the equipment circuit when the temperature inside the insulated compartment B is under a threshold value. This means that, even with a low level of power available, the equipment converter 23 might work its full power according to the refrigerating equipment needs.
  • the equipment control means ECM or the body builder interface and controller 25 may be implemented by the equipment control means ECM or the body builder interface and controller 25. More preferably, the body builder interface and controller 25 will also take into consideration the state of charge of the equipment battery set 21. This control can be conducted in various ways. According to a preferred embodiment, the body builder interface and controller 25 and/or the drive system control unit 16 are adapted to: - determine a level of power available from the drive system D;
  • the body builder interface and controller 25 will set the equipment converter 23 at its full power if the equipment battery set 21 is at a low state of charge.
  • the drive system control unit 17 will provide a medium energy cost level to the body builder interface and controller 25. If the state of charge of the equipment battery 21 is at an intermediate level or low level, the body builder interface and controller 25 will thus determine the power available for the equipment circuit as being intermediate and will set the output power of the equipment converter 23 at an intermediate level.
  • the drive system control unit 17 will provide a high energy cost level. If the state of charge of the equipment battery set 21 is not too low, the body builder interface and controller 25 will therefore determine the level of the output power of the equipment converter 23 to be zero. The equipment converter 23 will be stopped so that all the electrical energy available will be used for charging the driving battery set 8 and the equipment 20 will run on the equipment battery set 21.
  • the body builder interface and controller 25 may, in order to keep a continuity of service, set the output of the equipment converter 23 at the level adapted for the refrigerating equipment to run correctly.
  • the converter 23 further comprises an off- board plug 40 and is adapted for deriving electrical energy from an external network.
  • the engine electronic control unit 4 and the motor electronic control unit 6 are two independent units, but these can be embedded in a same electronic control unit or being parts of the drive system control unit 16 controlling the drive functions and units of the vehicle.
  • electricity is provided to the electric motor 18 by the equipment converter 23 which derives its power either from the equipment circuit 11 or the equipment battery set 21
  • the electric motor can be either a DC or an AC motor.
  • the electric motor 18 may also be directly connected to the equipment battery set 21 without interposition of the equipment converter 23.

Abstract

Hybrid vehicle for transportation of a refrigerated commercial load comprising: - a body builder thermally insulated compartment (B) for the commercial load; - an equipment circuit (11 ) connected to the driving circuit (7); - an electrical refrigerating equipment (RE) which is adapted to refrigerate the insulated compartment (B) and which comprises an equipment electric motor (18) driving a refrigerating compressor (19), the equipment electric motor (18) and the refrigerating compressor (19) being both mechanically decoupled from the drive system (D); - an equipment battery set (21 ) which is distinct from the driving battery set and which comprises at least an equipment battery; - an equipment converter (23) which interconnects the equipment circuit (11 ), the equipment battery set (21 ) and the equipment electric motor (18) and which is adapted to provide electrical power to the equipment electric motor and to charge the equipment battery set; and - equipment control means (ECM) which are adapted to control at least the equipment converter (23) and the electrical refrigerating equipment (RE).

Description

HYBRID VEHICLE FOR TRANSPORTATION OF A REFRIGERATED
COMMERCIAL LOAD TECHNICAL FIELD OF THE INVENTION
The invention is directed to hybrid vehicles comprising an internal combustion engine as well as an electric drive motor, the electric drive motor and the combustion engine being used alternatively or in conjunction for driving the vehicle. While running, the internal combustion engine drives an electric generator providing electricity which can be used for charging a driving battery set. This kind of vehicle is used for many applications such as personal cars or commercial vehicles or trucks. The invention is more particularly directed to hybrid vehicle for transportation of a refrigerated commercial load BACKGROUND OF THE INVENTION
On commercial vehicles and trucks, it is often needed to provide power to bodybuilder equipments. Indeed, such vehicles are often provided by the vehicle manufacturers as only a chassis equipped with a driver's cabin and with the dhveline and powertrain. Such chassis is to be equipped by so-called body builders with various bodies or more generally with various equipments specifically suited for a defined application. For vehicle designed for transportation of a refrigerated commercial load, body builder equipment includes thermally insulated compartment or body which may be of various types and forms. The body builder equipment includes also a refrigerating unit adapted to refrigerate and keep the insulated compartment at a preset temperature. The refrigerating unit generally comprises a compressor working in a closed loop of refrigerant. The energy needed to power such compressor is quite high, so that in conventional vehicles, it cannot be provided by the conventional on-board electric circuit and is necessarily provided through a mechanical power take-off powered by the internal combustion engine.
In conventional vehicles, this energy is generally provided using a mechanical power take-off set on the driveline or directly driven by the internal combustion engine, the mechanical take-off driving the compressor. The main drawback of such mechanical power take-off is that power available depends directly of the load of the engine or the drive system. Furthermore when the vehicle is parked and, if the vehicle engine is stopped, there is no power available for the refrigerating unit so it is necessary either to forbid the shut down of the main engine when a commercial load is carried or to provide the refrigerating unit with a secondary internal combustion engine driving the compressor. Neither of these two solutions is fully satisfactory because, when the main engine is used for driving the compressor while the vehicle is not moving, this induces extra fuel consumption as the main engine is not designed to drive efficiently such a small load. When a secondary engine is implemented, it induces an extra-weight and an extra cost of maintenance. Furthermore these two solutions produce noise which is a drawback when the vehicle is parked on highway resting areas or in residential areas. Therefore, the need appears for a new kind of vehicle able to provide power to a refrigerating equipment in a very efficient way in terms of fuel consumption as well as of atmospheric and noise pollution in order to overcome the drawbacks of prior art solutions. SUMMARY OF THE INVENTION In order to achieve this, the invention concerns a hybrid vehicle for transportation of a refrigerated commercial load comprising:
- a drive system comprising at least :
- an electric motor system which is connected to a driving circuit;
- a driving battery set which comprises at least a driving battery and which is connected to the driving circuit;
- a body builder thermally insulated compartment for the commercial load;
- a body builder equipment circuit connected to the driving circuit;
- an electrical refrigerating equipment which is adapted to refrigerate the insulated compartment and which comprises a refrigerating control unit and an equipment electric motor driving a refrigerating compressor, the equipment electric motor and the refrigerating compressor being both mechanically decoupled from the drive system;
- an equipment battery set which is distinct from the driving battery set and which comprises at least an equipment battery; - an equipment converter which interconnects the equipment circuit, the equipment battery set and the equipment electric motor and which is adapted to provide electrical power to the equipment electric motor and to charge the equipment battery set; - equipment control means which are adapted to control at least the equipment converter and the refrigerating equipment.
By the implementation of such equipment converter and electric motor the mechanical energy or the power for the refrigerating system is clearly independent from the engine or the drive system load as the converter is adapted to adjust the torque and/or the speed output of the equipment electric motor. Furthermore the implementation of the battery equipment set allows the compressor to be always driven by the same equipment motor even when the engine is stopped, such equipment motor being less noisy than any internal combustion engine. The implementation of an equipment circuit with an equipment battery dedicated to the power supply of the refrigerating equipment allows to fine tune the use of the energy available in order to reduce the fuel consumption.The implementation of the equipment battery set allows also a fine tuning of the recuperation of energy as it possible to adjust the state of charge of both the driving battery set and the equipment battery set so that, for example, any of those is always available for accumulating the electric power recovered during slowing down phases of the movement of the hybrid vehicle.
In the context of the invention, the hybrid vehicle may comprise any kind energy providing unit consuming fuel such as an internal combustion engine or a fuel cell.
According to an aspect of the invention the hybrid vehicle further comprises a refrigerating structure which contains or supports at least:
- the electric equipment motor;
- the refrigerating compressor; - the equipment battery set.
According to the invention, the refrigerating structure may also support the equipment converter.
By regrouping all these components of the refrigerating equipment or system, the invention simplifies the work of the body builder for positioning the above components. In order to further enhance an easy implementation, the refrigerating structure may further support at least a part of the equipment control means. According to the invention the refrigerating structure may be situated on various locations of the hybrid vehicle. According to an embodiment of the invention, the refrigerating structure is adjacent to the thermally insulated compartment. In such embodiment, the refrigerating structure may be situated in front of the insulated compartment with respect to the forward direction of the hybrid vehicle. According to an aspect of the invention, the refrigerating structure is fixed to the insulated body.
According to the invention, the refrigerating structure may comprise one or several chassis or compartments joined together. According to the invention, the equipment control means may implement any appropriate design. The equipment control means may, for example, comprise a body builder interface and controller controlling at least the equipment converter and receiving information or instructions from a refrigerating control unit controlling the refrigerating equipment in order to maintain a given temperature within the insulated compartment. The equipment control means may also comprise a physical interface for interconnecting the control means to a communication network of the hybrid vehicle enabling communication between the control means and a control unit of the hybrid vehicle. The body builder interface and controller and the refrigeration control unit may be two separate units but can also be embedded in a same control unit implementing their functions. Such control unit can also be embedded in the equipment converter.
The invention concerns also a refrigerating unit for a hybrid vehicle according to the invention, said refrigerating comprising a structure carrying:
- a refrigerating compressor; - an equipment electric motor driving the refrigerating compressor;
- an equipment battery set; and
- a physical interface adapted to connect the refrigerating unit to an equipment circuit of the hybrid vehicle.
According to an embodiment of the invention, the refrigerating unit further comprises:
- an equipment converter adapted to charge the equipment battery set and to provide electrical energy to the equipment electric motor; - equipment control means adapted to control the equipment converter and the refrigerating unit and to communicate with a control unit of the hybrid vehicle; and
- a physical interface adapted to connect the equipment control means to a communication network provided by the hybrid vehicle;
Such refrigerating unit can be provided as a kit to the body builder who will only have to adapt it on the vehicle in relation with the insulated compartment.
According to a further aspect of the invention, the equipment converter is provided with an off-board plug for deriving electrical energy from an external network. The implementation of such electrical converter with an off-board plug is more particularly useful for refrigerated hybrid vehicles having short driving periods of use compared to parking periods during which the refrigerated hybrid vehicles stay still as it is the case for refrigerated vehicles used for dispatching refrigerated goods in day time and being loaded during night time. According to the invention, the control of the equipment converter achieved by the equipment control means may be done in several ways depending on several parameters. For example, the body builder interface and controller and the drive system control unit might be adapted to give priority to providing energy to the driving system when the vehicle is moving. The equipment control means may also be adapted to give priority to providing power to the equipment circuit when the temperature in the thermally insulated compartment is bellow a threshold value or security value.
According to an aspect of the invention, the drive system comprises a drive system control unit which is adapted to: - determine a level of power available from the engine unit and/or the motor system;
- and/or determine a level of energy cost; and the equipment control unit is adapted to :
- determine a level of output power for the equipment converter, according to the level of cost of energy and/or to the level of power available; and
- set the output power of the equipment converter at the determined level of output power. According to the invention, the above determination can be conducted in several ways. For example, the cost of energy can comprise at least two levels corresponding to energy being free or of very low cost and to energy very expensive. The energy free level will correspond for example to braking phases or slowing down phases of the vehicle with the driving battery set highly charged. In such conditions there is plenty of electricity to be used, which cannot be stored in the driving battery set. The energy very expensive level will correspond for example to phases during which the vehicle is electrically driven, or during which the electric drive system provides torque-assist to the engine system, or during which the state of charge of the driving battery is too low. Of course, the cost of energy information provided by the drive system control unit may comprises more levels of energy cost allowing to take into consideration more accurately the functioning phases of the drive system.
Furthermore the equipment control means may be adapted to set the output level of the equipment converter according to a power required by refrigerating unit as determined by the equipment control means. Preferably, the output level of the equipment converter will take at least two values corresponding respectively to: full power and low power. The body builder interface and controller may also be adapted to set the output level of the equipment converter according to information of faulty component either in the drive system or in the body builder equipment.
According to another aspect of the invention the hybrid vehicle further comprises equipment battery set sensing means adapted to provide at least a state of charge of the equipment battery set; and equipment converter is adapted to charge the equipment battery set whereas the equipment control means are adapted to control the equipment converter according also to the state of charge of the equipment battery set.
According to an aspect of the invention, the hybrid vehicle comprises a service circuit providing electricity at least to the engine unit. The service circuit may also provide energy to some vehicle accessories. In the context of the invention, these vehicle accessories powered by the service circuit encompass electrical accessories dedicated to the moving or traveling functions of the vehicle including security functions essential to the vehicle displacements as well as comfort functions for the drivers and eventually the passengers. In the context of the invention, the service circuit does not provide electricity to heavy duty equipments installed by the body builder such as the refrigerating unit. Nevertheless the service circuit may provide energy to low consumers of the body builder equipment such as control units. The heavy duty equipment other than the refrigerating compressor or unit may include powered elevating tailgates or tippable platforms facilitating the loading and unloading of the insulated compartment. According to the invention, these other heavy duty equipments, if implemented, would be powered by either the equipment converter or directly the equipment battery set.
The service circuit may also comprise a service battery set which comprises at least one service battery.
According to the invention, the various battery sets of the hybrid vehicle may be of various types provided they are perfectly adapted to their specific use. According to a preferred form of implementation of the invention:
- the equipment battery set is of a medium nominal voltage, preferably being in the range of 84 V to 810 V
- the driving battery set is of a high nominal voltage or of a medium nominal voltage, preferably being in the range of 120 V to 1000 V, According to an aspect of the invention:
- each driving battery is a battery with a low internal resistance optimized for efficient low duration high current output; and
- each equipment battery is a battery optimized for deep cyclic uses and for total energy capacity or a battery with a low or medium internal resistance optimized for efficient low or medium duration high current output.
According to an aspect of the invention, the service battery set is of a low nominal voltage, preferably being in the range of 12 V to 72 V.
According to a further aspect of the invention, each service battery is a battery optimized for deep cyclic uses and for total energy capacity or a battery of a dual type being a compromise between an energy battery and a power battery. The various above aspects, embodiments or objects of the invention may be combined in various ways with each others, provided the combined aspects, embodiments or objects are not incompatible or mutually exclusive.
Other aspects and advantages of the present invention will be apparent from the following detailed description made in conjunction with the accompanying drawing illustrating schematically a non-limitative embodiment of the invention. BRIEF DESCRIPTION OF THE DRAWINGS
- Figure 1 is a schematic external view of a hybrid vehicle for transportation of a refrigerated commercial load according to the invention.
- Figure 2 is schematic functional view of the hybrid vehicle shown on figure 1. DETAILED DESCRIPTION OF AN EMBODIMENT
As illustrated on figure 1 , a hybrid vehicle according to the invention, designated as a whole by reference 1 , comprises a wheeled chassis W equipped with a driving cab C and a thermally insulated compartment or body B. The insulated compartment B may be of any type and is designed according to the type of refrigerated commercial load it should transport.
As shown more particularly by figure 2, the hybrid vehicle 1 further comprises a drive system D which includes an internal combustion engine unit 2 powering a mechanical driveline 3. The internal combustion engine unit 2 is associated with an engine electronic control unit 4 providing at least a state of the engine unit 2 to a drive system control unit 16. The drive system D comprises also an electric drive motor system 5 which is as well operatively connected to the driveline 3. The electric drive motor system is associated with a motor electronic control unit 6 connected to the drive system control unit 16. The drive system D can be of different types such as a parallel or series type or implement a planetary gear. In the same manner the electric drive motor system 5 may comprise a single electric motor or a plurality of electric motors combined with a single electric generator or a plurality of electric generators in order to recover energy during slowing phases of the hybrid vehicle. As the electric motor and the electric generator may be mutually separate, they also can be combined as a single motor/generator which selectively functions as an electric motor or an electric generator. The hybrid vehicle 1 comprises a driving circuit 7 which provides electricity at least to the electric drive motor system 5 and which comprises a driving battery set 8 comprising at least one driving battery not shown. The driving battery set 8 may of course comprise a plurality of driving batteries either connected in series or in parallel depending on capacity or the nominal voltage of the driving battery set. The driving battery set is preferably of a medium or a high nominal voltage, for example being in the range of 120 V to 1000 V. Furthermore, each driving battery is preferably a battery with a low internal resistance optimized for efficient low duration high current output. In order to monitor the functioning of the driving battery set 8, the hybrid vehicle 1 comprises driving battery set sensing means 9 adapted to provide at least the state of charge of the driving battery set 8 to the drive system control unit 16. The hybrid vehicle 1 also comprises a service circuit 10 as well as an equipment circuit 11. The service circuit 10 provides electricity at least to the engine unit 2 but also to other electrical consumers 12 schematically depicted as a light bulb on the figures. These electrical consumers or accessories are dedicated either to the safety functions of the vehicle (such as road, braking, direction and warning lights; power steering; ABS calculation; engine control unit...) or to the comfort functions for the driver in the cab C (such as radio, GPS, air conditioning, cab lighting....). All these functions may be designated, as a whole, as traveling electrical accessories of the vehicle. The service circuit 10 comprises a service battery set 13 which comprises at least one service battery not individually shown on the figures. The service battery set 13 is of a low nominal voltage, for example being in the range of 12 V to 72 V. Each service battery is preferably a battery optimized for deep cyclic uses and for total energy capacity but can also be of a dual type being a compromise between an energy battery and a power battery. The service circuit 10 further comprises an electric generator operatively connected to the engine unit 2 and therefore driven by internal combustion engine unit 2. The service circuit 10 is also connected to the driving circuit 7 through a driving converter 15. The driving converter 15 mainly works as a step- down converter lowering voltage of the driving circuit 10 in order to provide electricity to the service circuit 7 and more particularly in order to charge the service battery set 8. The driving converter 15 can also be of a step-up/step- down type in order to reciprocally derive power from the service circuit 10 for providing electricity to the driving circuit 7.
The vehicle further comprises an electrical equipment E which comprises, according to the illustrated example, an electrical refrigerating equipment RE which cools or refrigerates the insulated compartment B. The refrigerating equipment RE implements the very well knows principle of compression and expansion of a refrigerant fluid in a close loop circuit not shown. Therefore, the electrical refrigerating equipment RE comprises a refrigerating compressor 17 and an equipment electric motor 18 adapted to drive the refrigerating compressor 17.
The equipment system E further comprises an equipment battery set 21 in order to provide electricity at least to the equipment electric motor 18 in an autonomous manner. The equipment battery set 21 comprises at least one equipment battery and generally more than one equipment battery depending on the nominal voltage of the equipment battery set 21. Preferably, the equipment battery set is of a medium nominal voltage being for example in the range of 84 V to 810 V. Each equipment battery is either a battery with a low or medium internal resistance optimized for efficient low or medium duration high current output or a battery optimized for deep cyclic uses and total energy capacity depending on the type of equipment implemented by the bodybuilder. All the batteries of the equipment battery set are preferably of the same type. The hybrid vehicle 1 comprises equipment battery set sensing means 22 adapted for providing a state of charge of the equipment battery set 21.
The body builder equipment system E comprises an equipment converter 23 which interconnects the equipment circuit 11 , the equipment battery set 21 and the equipment motor 18. The equipment converter 23 is adapted to step- down or step-up the voltage of the driving circuit 7 in order to provide electricity to the equipment motor 18 so as to control its power and thus the working conditions of the refrigerating compressor 17. The equipment converter 23 is also adapted to charge the equipment battery set 21.
In order to control the body builder equipment E and more particularly the electrical refrigerating equipment RE, the hybrid vehicle 1 comprises equipment control means ECM. According to the shown example, the equipment control means ECM comprise a body builder interface and controller 25 which comprises electronic communication and control means. The body builder interface and controller 25 is associated with a physical interface 26 enabling an easy connection to the drive system 16. The body builder interface and controller 25 is also connected to a refrigerating control unit 28 which controls all the refrigerating functions such as the temperature regulation inside the insulated compartment B. The refrigerating control unit 27 provides also to the body builder interface 25 information or instruction concerning the power required for the refrigerating compressor 17. The body builder interface and controller 25 controls the equipment converter 23 so as to regulate the mechanical power available from the motor 18 to drive the compressor. In order to achieve this, the body builder interface and controller 25 is connected to the converter 23 and preferably, but not necessarily, also to the equipment motor 18 and to the bodybuilder equipment refrigerating control unit 27. The connection between the body builder interface and controller 25 and these various elements including the drive system 16 can be direct wire connection as shown, or implement a Controller Area Network (CAN) well-known by the man skilled in the art.
In order to facilitate the implantation of the electrical refrigerating equipment RE, the hybrid vehicle 1 comprises a dedicated structure RC being here a compartment containing the main elements of the electrical refrigerating equipment RE. This refrigerating compartment RC is on the shown example adjacent to the insulated compartment B and situated in front of it respective to the forward travel direction of the vehicle 1. This situation above the drive cab C allows good ventilation and cooling of the refrigerating equipment RE. The refrigerating structure RC is preferably fixed to the insulated compartment B, by any suitable fastening means. According to the shown embodiment, the refrigerating structure RC supports more particularly the following components of the electrical equipment E: the refrigerating compressor 17; the motor 18, the equipment battery set 21 , the equipment converter 23 and at least a part of the equipment control means ECM being here the body builder interface and controller 25 and the refrigerating control unit 27. The refrigerating compartment RC may also support some other components, not shown, of the refrigeration equipment such as a condenser and an evaporator associated with an electrical air circulator for cooling the inside of the insulated compartment B. In the later case, the refrigerating compartment RC will be, at least in part, in air communication with the insulated compartment B and might also extent is said insulated compartment B. The air circulator will be powered directly by the equipment battery set 21 or by the equipment converter 23. In order to further facilitate its implementation by the body builder, the refrigerating compartment RC is provided with the physical interface 26 for connecting the equipment control means ECM to the control unit 16 or to a communication network of the hybrid vehicle 1. For the same purpose, the refrigerating compartment RC is also provided with a physical interface 30 adapted to connect the refrigerating unit or equipment E to the equipment circuit 11 of the hybrid vehicle 1. On fig. 2, the physical interface 30 connects two parts of the equipment circuit 11 between the driving circuit 7 and the equipment converter 23. The physical interfaces 26 and 30 may comprise any suitable kind of connectors.
It should be note that the refrigerating structure or compartment RC as described above may be provide as a whole to the body builder for installation on the hybrid vehicle 1.
In order to optimize the repartition of the electric power available, the equipment control means ECM and here the body builder interface and controller 25 may control the equipment converter 23 according to the state of the drive system D. The equipment control means ECM may also be adapted to optimize the repartition of the energy during slowing phases of the hybrid vehicle as well as the repartition of the electric power provided by the electric generator 14 when the internal combustion engine 2 is running.
The equipment control unit ECM may also be adapted so as to give priority to providing energy to the driving battery set when the vehicle is moving, meaning shutting down the equipment converter 23 when there is no need of power for the equipment system, such situation corresponding to an information of low power available given by the drive system control unit 16. Such low power available information can correspond either to the vehicle moving or to a low state of charge of the driving batteries. The body builder interface and controller 25 will set the output of the equipment converter 23 at a medium power when the level of power available given by the drive system control unit 16 is at medium value. This medium level can correspond for example to a state of charge of the driving battery set 8 being at an intermediate level. The body builder interface and controller 25 will set the output of the equipment converter 23 at a full power when the level of power available is high and the needs of the refrigerating equipment RE is also high. On the other hand, the body builder interface and controller 25 can also be adapted to give priority to provide power to the equipment circuit when the temperature inside the insulated compartment B is under a threshold value. This means that, even with a low level of power available, the equipment converter 23 might work its full power according to the refrigerating equipment needs.
Of course, many other types of suitable settings or priorities may be implemented by the equipment control means ECM or the body builder interface and controller 25. More preferably, the body builder interface and controller 25 will also take into consideration the state of charge of the equipment battery set 21. This control can be conducted in various ways. According to a preferred embodiment, the body builder interface and controller 25 and/or the drive system control unit 16 are adapted to: - determine a level of power available from the drive system D;
- determine a level of energy cost;
- determine a level of output power for the equipment converter 23, according to the level of cost of energy and the level of power available; and - set the output power of the equipment converter at the determined level of output power.
For example, when the hybrid vehicle is in a slowing down movement and the driving battery set 8 is completely or sufficiently charged, the energy available is determined as totally free. Therefore, the body builder interface and controller 25 will set the equipment converter 23 at its full power if the equipment battery set 21 is at a low state of charge. When the state of charge of the driving battery set 8 is on an intermediate level and the vehicle is slowing down, the drive system control unit 17 will provide a medium energy cost level to the body builder interface and controller 25. If the state of charge of the equipment battery 21 is at an intermediate level or low level, the body builder interface and controller 25 will thus determine the power available for the equipment circuit as being intermediate and will set the output power of the equipment converter 23 at an intermediate level. Therefore, only a part of the electrical energy available will be derived to the equipment circuit 11 , the other part being used for charging the driving battery set 8. In the same manner, if the state of charge of the driving battery set 8 is at a very low level, the drive system control unit 17 will provide a high energy cost level. If the state of charge of the equipment battery set 21 is not too low, the body builder interface and controller 25 will therefore determine the level of the output power of the equipment converter 23 to be zero. The equipment converter 23 will be stopped so that all the electrical energy available will be used for charging the driving battery set 8 and the equipment 20 will run on the equipment battery set 21. Nevertheless if the energy cost level is high but the state of charge of the equipment battery set 21 is low while there is a need of power at the electrical refrigerating equipment end, the body builder interface and controller 25 may, in order to keep a continuity of service, set the output of the equipment converter 23 at the level adapted for the refrigerating equipment to run correctly. On the embodiment shown, the converter 23 further comprises an off- board plug 40 and is adapted for deriving electrical energy from an external network.
In the shown embodiment the engine electronic control unit 4 and the motor electronic control unit 6 are two independent units, but these can be embedded in a same electronic control unit or being parts of the drive system control unit 16 controlling the drive functions and units of the vehicle. Furthermore on the shown embodiment, electricity is provided to the electric motor 18 by the equipment converter 23 which derives its power either from the equipment circuit 11 or the equipment battery set 21 In such a case, the electric motor can be either a DC or an AC motor. But according to the invention, the electric motor 18 may also be directly connected to the equipment battery set 21 without interposition of the equipment converter 23. While the invention has been shown and described with reference to certain embodiments thereof, it would be understood by those skilled in the art that changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims

Claims

1. Hybrid vehicle for transportation of a refrigerated commercial load comprising :
- a drive system (D) comprising at least : - an electric motor system (5) which is connected to a driving circuit (7);
- a driving battery set (8) which comprises at least a driving battery and which is connected to the driving circuit;
- a thermally insulated compartment (B) for the commercial load;
- an equipment circuit (11 ) connected to the driving circuit (7); - an electrical refrigerating equipment (RE) which is adapted to refrigerate the insulated compartment (B) and which comprises an equipment electric motor (18) driving a refrigerating compressor (19), the equipment electric motor (18) and the refrigerating compressor (19) being both mechanically decoupled from the drive system (D); - an equipment battery set (21 ) which is distinct from the driving battery set and which comprises at least an equipment battery;
- an equipment converter (23) which interconnects the equipment circuit (11 ), the equipment battery set (21 ) and the equipment electric motor (18) and which is adapted to provide electrical power to the equipment electric motor and to charge the equipment battery set; and
- equipment control means (ECM) which are adapted to control at least the equipment converter (23) and the electrical refrigerating equipment (RE).
2. Hybrid vehicle according to claim 1 , further comprising a refrigerating structure which contains or supports at least: - the electric equipment motor (18);
- the refrigerating compressor (17); and
- the equipment battery set (21 ).
3. Hybrid according to claim 2, wherein the refrigerating structure (RC) contains or supports the equipment converter (23).
4. Hybrid according to claim 2 or 3, wherein the refrigerating structure (RC) contains or supports at least a part of the equipment control means (ECM).
5. Hybrid vehicle according to any of claims 2 to 4, wherein the refrigerating structure (RC) is adjacent to the thermally insulated compartment (B).
6. Hybrid vehicle according to any of claims 2 to 5, wherein the refrigerating structure (RC) is fixed to the insulated compartment (B)
7. Hybrid vehicle according to any of claims 2 to 6, wherein the refrigerating compartment (RC) is situated in front of the insulated compartment (B) with respect to the move forward direction of the hybrid vehicle.
8. Hybrid vehicle according to any of claims 1 to 7, wherein :
- it further comprises equipment battery set sensing means (22) adapted to provide at least a state of charge of the equipment battery set (21 );
- the equipment control means (ECM) are adapted to control the equipment converter (23) according also to the state of charge of the equipment battery set (21 ).
9. Hybrid vehicle according to any of claims 1 to 8, wherein the equipment battery set (21 ) is of a different nominal voltage than the driving battery set (8).
10. Hybrid vehicle according to claim 9, wherein : - the equipment battery set (21 ) is of a medium nominal voltage, preferably being in the range of 84 V to 810 V
- the driving battery set (8) is of a high nominal voltage or of a medium nominal voltage, preferably being in the range of 120 V to 1000 V.,
11. Hybrid vehicle according to claim 9 or 10, wherein : - each driving battery is a battery with a low internal resistance optimized for efficient low duration high current output; and
- each equipment battery is a battery optimized for deep cyclic uses and for total energy capacity or a battery with a low or medium internal resistance optimized for efficient low or medium duration high current output.
12. Hybrid vehicle according to any of claims 1 to 11 , further comprising a service circuit (10) which provides electricity at least to the engine unit (2) and which comprises a service battery set (13) comprising at least one service battery.
13. Hybrid vehicle according to claim 12, wherein the service battery set (13) is of a low nominal voltage, preferably being in the range of 12V to 72V.
14. Hybrid vehicle according to any of claims 1 to 13, wherein :
- the drive system (D) comprises a drive system electronic control unit (16) which is adapted to: - determine a level of power available from the engine unit (2) and/or the electric motor system (5);
-and/or determine a level of energy cost;
- and the equipment control means (ECM) are adapted to : - determine a level of output power for the equipment converter (23), according to the level of cost of energy and/or to the level of power available; and
- set the output power of the equipment converter (23) at the determined level of output power.
15. Hybrid vehicle according to claim 14, wherein the energy cost level can have at least two values corresponding respectively to: a high cost of energy and a low cost of energy, and the output power level can have at least two values corresponding respectively to: full power and low power.
16. Hybrid vehicle according to claim 14 or 15 , wherein the drive system control unit (16) is adapted to provide a high cost of energy information to the equipment control means (ECM) when the vehicle is moving.
17. Hybrid vehicle according to any of claims 14 to 16, wherein the equipment control means (ECM) are adapted to give priority to providing power to the equipment motor (18) when the electrical refrigerating equipment (17) is working.
18. Refrigerating unit for a hybrid vehicle (1 ) according to any of claims 1 to 17 comprising a structure carrying :
- a refrigerating compressor (17);
- an equipment electric motor (18) driving the refrigerating compressor (17);
- an equipment battery set (21 ); and - a physical interface (30) adapted to connect the refrigerating unit to an equipment circuit (11 ) of the hybrid vehicle.
19. Refrigerating unit according to claim 18, further comprising :
- an equipment converter (23) adapted to charge the equipment battery set (21 ) and to provide electrical energy to the equipment electric motor (18); - an refrigerating control unit;
- equipment control means (ECM) adapted to control the equipment converter (23) and the refrigerating unit, and to communicate with a control unit (16) of the hybrid vehicle; and - a physical interface (26) adapted to connect the equipment control means (ECM) to the control unit (16) or to a communication network provided by the hybrid vehicle.
20. Refrigerating unit according to claim 18 or 19, further comprising an off- board plug (40) for deriving electrical energy from an external network.
21. Refrigerating unit according to any of claims 18 to 20, further comprising equipment battery set sensing means (22) adapted to provide at least a state of charge of the equipment battery set; the equipment control means (ECM) being adapted to control the equipment converter (23) according also to the state of charge of the equipment battery set (21 ).
22. Refrigerating unit according to any of claims 18 to 21 , wherein the equipment battery set (21 ) is of a medium nominal voltage, preferably being in the range of 84 V to 81 O V.
EP08869585A 2007-12-31 2008-12-29 Hybrid vehicle for transportation of a refrigerated commercial load Withdrawn EP2237984A2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PCT/IB2007/004476 WO2009083751A1 (en) 2007-12-31 2007-12-31 Hybrid vehicle with a body builder equipment circuit and battery set
PCT/IB2007/004471 WO2009083750A1 (en) 2007-12-31 2007-12-31 Hybrid vehicle with an equipment electrical power take off
PCT/IB2008/055694 WO2009087552A2 (en) 2007-12-31 2008-12-29 Hybrid vehicle for transportation of a refrigerated commercial load

Publications (1)

Publication Number Publication Date
EP2237984A2 true EP2237984A2 (en) 2010-10-13

Family

ID=42647441

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08869612A Withdrawn - After Issue EP2231435B1 (en) 2007-12-31 2008-12-29 Hybrid refuse collection vehicle with an equipment electrical power take off
EP08869585A Withdrawn EP2237984A2 (en) 2007-12-31 2008-12-29 Hybrid vehicle for transportation of a refrigerated commercial load

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP08869612A Withdrawn - After Issue EP2231435B1 (en) 2007-12-31 2008-12-29 Hybrid refuse collection vehicle with an equipment electrical power take off

Country Status (2)

Country Link
EP (2) EP2231435B1 (en)
WO (2) WO2009087551A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012076026A1 (en) * 2010-12-06 2012-06-14 Volvo Lastvagnar Ab A vehicle comprising a refrigerator arrangement
NL2009040C2 (en) * 2012-06-20 2013-12-23 Eeuwe Durk Kooi VEHICLE FITTED WITH A HYBRID ENGINE.
CN103507627B (en) * 2013-09-13 2016-08-17 潍柴动力股份有限公司 A kind of sanitation cart and power control system thereof
CN105172651B (en) * 2015-08-12 2018-01-26 北京信息科技大学 A kind of automobile energy-saving control system
NL2019751B1 (en) * 2017-10-18 2019-04-25 Terberg Machines LOADING SYSTEM PROVIDED FOR AN ENERGY MODULE, WASTE CAR PROVIDED THEREOF AND METHOD THEREFOR
CN110435684A (en) * 2019-08-30 2019-11-12 中车长江车辆有限公司 Refrigerated railway car
DE202021102039U1 (en) * 2021-04-16 2021-04-26 Robert Bosch Gesellschaft mit beschränkter Haftung Drive module for an electro-hydraulic system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3041630A1 (en) * 1980-11-05 1982-05-13 Schörling GmbH & Co Waggonbau, 3000 Hannover Refuse lorry hydraulic collection compaction and discharge device - has hydraulic pump motor connected across generator driven by engine
US5257877A (en) * 1984-01-20 1993-11-02 Perkins Manufacturing Company Lifting device
DE4123843A1 (en) * 1991-07-18 1993-01-21 Man Nutzfahrzeuge Ag Truck with chilled container - has hybrid drive with electric back=up motor cooling and engine-driven main cooling
JP2000121202A (en) * 1998-10-12 2000-04-28 Isuzu Motors Ltd Refrigerated van
JP3624831B2 (en) * 2000-12-28 2005-03-02 株式会社デンソー Vehicle power supply device and engine drive regulation support device
US7174736B2 (en) * 2004-12-28 2007-02-13 T.Join Transporation Co., Ltd. Low-temperature delivery vehicle
JP2007137299A (en) * 2005-11-21 2007-06-07 Toyota Motor Corp Power supply control device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009087552A2 *

Also Published As

Publication number Publication date
WO2009087551A2 (en) 2009-07-16
EP2231435A2 (en) 2010-09-29
WO2009087551A3 (en) 2009-11-19
WO2009087552A2 (en) 2009-07-16
WO2009087552A3 (en) 2009-12-23
EP2231435B1 (en) 2012-11-28

Similar Documents

Publication Publication Date Title
US11192451B2 (en) Methods and systems for energy management of a transport climate control system
CN110300676B (en) Front end motor generator system and hybrid electric vehicle operation method
CN110290968B (en) Front end motor generator system and hybrid electric vehicle operation method
CN110290994B (en) Front-end motor-generator system and hybrid electric vehicle operation method
CN110290995B (en) Front-end motor-generator system and hybrid electric vehicle operation method
CN110290957B (en) Front end motor generator system and hybrid electric vehicle operation method
EP3647088B1 (en) Methods and systems for augmenting a vehicle powered transport climate control system
US10926610B2 (en) Methods and systems for controlling a mild hybrid system that powers a transport climate control system
US11260723B2 (en) Methods and systems for power and load management of a transport climate control system
CN110290967B (en) Hybrid power electric front-end motor generator system
US10543735B2 (en) Hybrid commercial vehicle thermal management using dynamic heat generator
JP6134863B2 (en) Energy control system for non-railroad vehicles
US9321352B2 (en) Solar auxiliary power systems for vehicles
CN108705928B (en) Hybrid commercial vehicle thermal management using dynamic heat generators
US20150073637A1 (en) Energy management system and fuel saving method for a hybrid electric vehicle
EP2237984A2 (en) Hybrid vehicle for transportation of a refrigerated commercial load
US11807112B2 (en) Front end motor-generator system and hybrid electric vehicle operating method
US20100286856A1 (en) Hybrid vehicle with a body builder equipment circuit and battery set
EP3819145B1 (en) Methods of minimizing c-rate fluctuation by adjusting operation of a transport climate control system
JP2000085449A (en) On-vehicle cooling device
US20230392543A1 (en) Front End Motor-Generator System and Hybrid Electric Vehicle Operating Method
CN112585049B (en) Front-end motor generator system and hybrid electric vehicle operation method
CN114729597A (en) Front-end motor-generator system and hybrid electric vehicle operation method

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20100802

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

DAX Request for extension of the european patent (deleted)
RIC1 Information provided on ipc code assigned before grant

Ipc: B60K 6/20 20071001ALI20120531BHEP

Ipc: B60K 6/48 20071001ALI20120531BHEP

Ipc: B60K 25/00 20060101ALI20120531BHEP

Ipc: B60L 11/14 20060101AFI20120531BHEP

Ipc: B60R 16/04 20060101ALI20120531BHEP

Ipc: B60L 11/18 20060101ALI20120531BHEP

Ipc: B60R 16/033 20060101ALI20120531BHEP

Ipc: B60W 10/26 20060101ALI20120531BHEP

Ipc: B60H 1/00 20060101ALI20120531BHEP

Ipc: B60P 3/20 20060101ALI20120531BHEP

Ipc: B60K 6/28 20071001ALI20120531BHEP

Ipc: B65F 3/00 20060101ALI20120531BHEP

Ipc: B60L 1/00 20060101ALI20120531BHEP

Ipc: B60W 30/188 20120101ALI20120531BHEP

Ipc: B60W 10/30 20060101ALI20120531BHEP

Ipc: B60W 10/08 20060101ALI20120531BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20121124