GB2483673A - Hybrid power train - Google Patents

Hybrid power train Download PDF

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Publication number
GB2483673A
GB2483673A GB1015424.3A GB201015424A GB2483673A GB 2483673 A GB2483673 A GB 2483673A GB 201015424 A GB201015424 A GB 201015424A GB 2483673 A GB2483673 A GB 2483673A
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GB
United Kingdom
Prior art keywords
power train
hybrid power
mechanically connected
planet carrier
mechanical coupling
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.)
Granted
Application number
GB1015424.3A
Other versions
GB201015424D0 (en
GB2483673B (en
Inventor
Philipp Guttenberg
Barry James
Adam Austin
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.)
Romax Technology Ltd
Original Assignee
Romax Technology Ltd
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Filing date
Publication date
Application filed by Romax Technology Ltd filed Critical Romax Technology Ltd
Publication of GB201015424D0 publication Critical patent/GB201015424D0/en
Priority to CN2011203526792U priority Critical patent/CN202557274U/en
Priority to CN201110277458.8A priority patent/CN102398506B/en
Publication of GB2483673A publication Critical patent/GB2483673A/en
Application granted granted Critical
Publication of GB2483673B publication Critical patent/GB2483673B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—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
    • B60K6/26—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 motors or the 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
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
    • 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
    • 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
    • B60K6/38—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 driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • 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
    • 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
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • 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
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B60W10/11—Stepped gearings
    • B60W10/115—Stepped gearings with planetary gears
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K99/00—Subject matter not provided for in other groups of this subclass
    • 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
    • B60K6/26—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 motors or the generators
    • B60K2006/262—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 motors or the generators the motor or generator are used as clutch, e.g. between engine and driveshaft
    • 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
    • B60K6/26—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 motors or the generators
    • B60K2006/264—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 motors or the generators with outer rotor and inner stator
    • 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
    • B60K6/38—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 driveline clutches
    • B60K2006/381—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 driveline clutches characterized by driveline brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for 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
    • Y02T10/62—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
    • Y02T10/64—Electric machine technologies in electromobility

Abstract

A hybrid power train 14 including an electrical rotating machine 13 in the form of a rotatable stator electric machine having first 15 and second 16 rotatable members and an energy storage device 22 is described. First, second and third 17, 18, 19 mechanical coupling devices or clutches are capable of being selected to reversibly connect the first rotatable member 15 to the output of the engine, the second rotatable member 16 to the output of the engine and to connect one of the rotatable members to a ground point respectively. The hybrid power train operates in a mode according to which of the clutches are selected to connect. By changing between modes the efficiency of the source of rotational energy and the rotatable stator machine can be optimised based on the current required performance of the vehicle producing an overall efficiency gain across a wide range of driving conditions. Optionally, a planetary gear set is included.

Description

Hybrid Power Train
FIELD OF INVENTION
Embodiments of the invention relate to hybrid power trains, and in particular to a hybrid power train interconnecting an output of an engine to a drive, the hybrid power train comprising an electrical rotating machine having two electrical rotating members and configurable to operate as a motor or as a generator. The hybrid power train further includes three mechanical coupling devices capable of being selected to reversibly couple various components of the drive, thereby allowing the hybrid drive train to operate in different modes. The hybrid power train further includes an energy storage device for providing electrical power to the electrical rotating machine when operating as a motor, and for storing electrical power from the electrical rotating machine when operating as a generator.
BACKGROUND OF THE INVENTION
The majority of road going vehicles currently use an internal combustion powered by petrol, diesel, ethanol, Liquid Petroleum Gas, Bio Fuel or any combustible liquid fuel coupled to a gearbox with distinct ratios connecting the power source to the vehicles wheels. This however requires that the speed and torque of the power source vary to allow the desired torque and speed to be delivered to the wheels. Under these circumstances the power source is not able to continuously run at its most efficient state. Further to this when the vehicle is decelerated the kinetic energy that is taken out of the vehicle in order to slow it down is lost as heat, dissipated in the braking system.
Previous attempts have been made to rectify these issues by combining electric motor/generators and power storage devices with the internal combustion engine. These attempts have been successful however most systems require many components and the use of two electric motor/generators. Most of these systems are also unable to provide optimum operating conditions for the internal combustion engine and the electric motor/generator across a wide range of driving conditions resulting in less than optimum fuel efficiency.
The proposed invention allows energy to be given or taken from the system depending on the requirements of the driver while reducing the number of components in the system. The invention also allows the system to switch between distinct modes' whereby the operating conditions of the engine and electric machine are varied ensuring that they always operate at or near their optimum efficiency regardless of the driving conditions being enforced.
DISCLOSURE OF INVENTION
According to an aspect of the present invention there is provided a hybrid power train for interconnecting an output of an engine to a drive, the hybrid power train comprising: an electrical rotating machine, including a first and a second rotatable member; an energy storage device electrically connected to the electrical rotating machine and configured to supply electrical power to or receive electrical power from the electrical rotating machine; a first and second mechanical coupling device capable of being selected to reversibly connect the first and second rotatable member, respectively, to the output of the engine; a third mechanical coupling device capable of being selected to reversibly connect one of the rotatable members to a ground point, in which the other of the rotatable members is mechanically connected to an output of the electrical rotating machine; and wherein the hybrid power train operates in different modes according to which of the mechanical coupling devices are selected to connect.
The second rotatable member can be connected to the ground point and the first rotatable member is then connected to an output of the electrical rotating machine. A planetary gear set comprising a ring gear, a planet carrier, and a sun gear can be deployed to mechanically interconnect the first and second rotatable members and the first and second mechanical coupling devices.
The second rotatable member can be connected to the ground point and the first rotatable member is then connected to an output of the electrical rotating machine. A planetary gear set comprising a ring gear, a planet carrier, and a sun gear can be deployed to mechanically interconnect the first and second rotatable members and the drive The second rotatable member can be connected to the ground point and the first rotatable member is then connected to an output of the electrical rotating machine. A planetary gear set comprising a ring gear, a planet carrier, and a sun gear can be deployed in which the output of the electrical rotating machine is mechanically connected to the planet carrier and the ring gear is connected to the drive; the output of the electrical rotating machine is also connected via a fourth selectable connector to the drive, and the sun gear is connected via a fifth selectable connector to a ground point.
The first rotatable member can be connected to the ground point and the secondary rotatable member is then connected to an output of the electrical rotating machine. A planetary gear set comprising a ring gear, a planet carrier, and a sun gear can be deployed to mechanically interconnect the first and second rotatable members and the first and second mechanical coupling devices.
The first rotatable member can be connected to the ground point and the secondary rotatable member is then connected to an output of the electrical rotating machine. A planetary gear set comprising a ring gear, a planet carrier, and a sun gear can be deployed to mechanically interconnect the first and second rotatable members and the drive.
A gear set can be deployed to mechanically connecting the output of the engine to the first and second mechanical coupling devices.
A gear set can be deployed to mechanically connecting one of the first and second rotatable members to an output of the electrical rotating machine.
The invention allows the speed and torque of the components in the system to be varied.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a schematic of the first embodiment of the system containing a rotating stator electric machine with a gear set between the engine and the electric machine.
Figure 2 is a schematic of a variation of the first embodiment of the system containing a rotating stator electric machine with a gear set between the engine and the electric machine whereby the electric machine is reversed in its orientation.
Figure 3 is a schematic of the second embodiment of the system containing a rotating stator electric machine with a gear set between the electric machine and the final drive gear set.
Figure 4 is a schematic of a variation of the second embodiment of the system containing a rotating stator electric machine with a gear set between the electric machine and the final drive gear set.
Figure 5 is a schematic of an application of the second embodiment of the system, using a planetary gear train as the gear set between the electric machine and the final drive gear set.
Figure 6 is a schematic of a third embodiment of the system covering a particular case where a planetary gear set is used as the gear set between the electric machine and the final drive gear set.
Figures 7-12 are specific planetary gear set configurations possible using the third embodiment of the system shown in figure 6.
Figure 13 is a schematic of a forth embodiment of the system covering a particular case where a planetary gear set is used as the gear set between the electric machine and the final drive Figures 14-19 are specific planetary gear set configurations possible using the forth embodiment of the system shown in figure 13.
Figure 20 is a schematic of a fifth embodiment of the system covering a particular case where a planetary gear set is used as the gear set between the power source and the electric machine Figure 21 is a schematic of a sixth embodiment of the system covering a particular case where a planetary gear set is used as the gear set between the power source and the electric machine Figures 22-27 are specific planetary gear set configurations possible using the fifth and sixth embodiments of the system shown in figures 20 and 21.
DESCRIPTION OF THE CONFIGURATIONS
Figure 1 shows a hybrid power train 14 containing a source of rotational energy 10 which may be an internal combustion engine, or any device capable of producing rotary output. An electrical rotating machine 13 having first and second rotatable members 15,16 is electrically connected to energy storage device 22 which is any device capable of storing energy such as a battery pack or a fuel cell. The electrical rotating machine can be variously described as a dual rotor electric machine, or as a rotating stator electric machine.
In the embodiment shown in Figure 1, an output shaft 11 connects the engine to a gear set 12.
The gear set can be any device which provides a speed/torque ratio between the engine and electric machine, possible configurations include a fixed or multi ratio gear set, a planetary set with any number of the elements grounded or connected to each other via the use of clutches or other torque interrupting devices or a CVT transmission.
The hybrid power train contains an electrical rotating machine comprising first and second rotatable members 16, 15. These are referred to in the following as a rotatable stator portion and a rotor portion 16. The rotatable stator may be allowed to freely rotate or may be held stationary by engaging one or more clutches 19 which are connected to ground.
The hybrid power train includes one or more mechanical coupling devices 17 allowing the rotor of the electric machine to be engaged and forced to rotate with a member of the gear set, indirectly connecting it with the input shaft and engine. One or more mechanical coupling devices 17 may also be disengaged allowing the rotor to rotate independently of the gear set and engine.
The hybrid power train also contains one or more mechanical coupling devices 18 allowing the gear set and consequently the engine to be engaged or disengaged from the rotatable stator of the electric machine. The rotor of the electric machine is connected to final drive gear set 21.
The final drive gear set is any device which enforces a speed/torque ratio between the engine and electric machine, possible configurations include a fixed or multi ratio gear set, a crown wheel and pinion, a planetary set with any number of the elements grounded or connected to each other via the use of mechanical coupling devices or other torque interrupting devices or a CVT transmission. The final drive gear set may be omitted if deemed unnecessary in any particular application. The final drive gear set is connected to output 23 which consists of a rotary output which can be used to power a variety of machines including, the wheels of a road vehicle or rotary input machinery.
The hybrid power train can be operated in various modes by changing the states of one or more mechanical coupling devices as described in Table 1. Electric drive mode is selected by engaging one or more mechanical coupling devices 19 and disengaging one or more mechanical coupling devices 17 and 18. In this mode there is no torque path between the engine and the wheels and as a consequence all the driving power comes from the electric machine. This mode is especially useful in low speed high acceleration scenarios such as driving a vehicle around town where the speed and torque variation required is inefficient to achieve using an engine. This particular case grounds the rotatable stator, the electric motor then takes energy from the energy storage device converting it into torque. The torque is then fed into the final drive gear set and finally out as a rotary output.
The mechanical coupling device can be, for example, a clutch, and this term is used in the following.
Table I
Mode Clutch 17 Clutch 18 Clutch 19 Electric Drive 0 0 X Speed 0 X 0 Torque X 0 X lCStart X 0 X Energy Recovery 0 0 X Stationary Charging 0 X 0 Key: X = Clutch Engaged; 0 = Clutch Disengaged Speed mode allows the electric machine to add or subtract speed to the drive train without adding or subtracting torque. This particular mode is useful in medium speed scenarios where the torque been provided by the engine is sufficient to accelerate the vehicle and overcome the resistance been offered by the road and air. When adequate torque is being produced by the engine and the speed output from the engine is higher than what is needed, energy can be taken from the system and stored in the energy storage device for later use. The speed addition is obtained via the rotatable stator electric machine. The rotatable stator of the electric machine spins with the engine in a ratio determined by the gear set. The electric machine can then either draw energy from the energy storage device, resulting in a relative negative speed between the rotatable stator and the rotor, or input energy from the energy storage device resulting in relative positive speed between the rotatable stator and the rotor. This relative speed is added or subtracted from the rotatable stator speed as appropriate, resulting in a larger or smaller total speed which is then input to the final drive gear set. Speed mode requires that one or more clutches 18 is engaged and that one or more clutches 17 and 19 are disengaged as described in Table 1.
Torque mode allows the electric machine to add or subtract torque, by giving or drawing energy from the energy storage device, to the power train without adding or subtracting speed.
If the power train was to be kept in speed mode at high speeds such as high speed driving the electric machine would always be adding speed to the system and hence always drawing energy from the energy storage device depleting the supply. In this scenario a torque mode rectifies the issue. The rotatable stator is grounded and the engine is connected via the gear set to the rotor. There is now a direct mechanical path from the engine to the output and as such the speed at any point on this path is determined by the engine, the gear set and the final drive gear set. Should the required torque at the output be less than that supplied by the engine, the electric machine takes energy out of the system and stores it in the energy storage device resulting in a negative torque difference between the rotor and rotatable stator, this torque difference is subtracted from the power train reducing the total torque output. Should the required torque be higher than that been supplied, such as overtaking at high speed, the electric machine takes energy from the energy storage device creating a positive torque difference between the rotor and the rotatable stator, this torque difference is added to the power train increasing the total torque output.
Torque mode requires one or more clutches 17 and 19 be engaged and one or more clutches 18 be disengaged.
If the source of rotational energy requires an external starting method, such as in an internal combustion engine, one or more clutches 17 and 19 are engaged while one or more clutches 18 is disengaged. The torque from the electric machine will rotate the engine in the positive direction starting the device.
Energy recovery mode allows the vehicle to recapture kinetic energy and store it for later use.
This is particularly useful under a braking operation or if the vehicle is going down hill. The rotatable stator is grounded and the rotor which is connected to the output via the final drive gear set rotates within the rotatable stator. The electric machine takes energy out of the power train and stores it in the energy storage device in turn reducing the speed of the vehicle.
Energy recovery mode requires that one or more clutches 19 will be engaged and one or more clutches 17 and 18 will be disengaged.
In some circumstances it may be required that the energy storage device is charged while the vehicle is stationary, such as in traffic. In this case there is no rotation of the output, caused by an external braking device. One or more clutches 18 are engaged and one or more clutches 17 and 19 are disengaged. This allows the rotatable stator to rotate with respect to the rotor.
Energy can then be draw from the electric machine and stored in the energy storage device.
Figure 2 shows a rotatable stator hybrid power train that is similar to that shown in figure 1.
The functionality of the system is identical to that of the system shown in figure 1 however in this instance the rotatable stator machine's orientation is reversed and the rotor is optionally grounded. The system contains a source of rotational energy, a rotating stator electric machine, an energy storage device, an input shaft and a gear set. The rotor may be allowed to freely rotate or may be held stationary by engaging one or more clutches 19.
The hybrid power train includes one or more clutches 17 allowing the rotor of the electric machine to be engaged and forced to rotate with a member of the gear set, indirectly connecting it with the input shaft and engine. One or more clutches 17 may also be disengaged allowing the rotor to rotate independently of the gear set and engine. The hybrid power train also contains one or more clutches 18 allowing the gear set and consequently the engine to be engaged or disengaged from the rotatable stator of the electric machine. The rotatable stator of the electric machine is connected to the final drive gear set. The final drive gear set is connected to output which consists of a rotary output. Various modes of operation are obtainable based on the state of one or more clutches 17, 18 and 19. The various modes that are achievable are summarised in Table 2.
Table 2
Mode Clutch 17 Clutch 18 Clutch 19 Electric Drive 0 0 X Speed X 0 0 Torque 0 X X lCStart 0 X X Energy Recovery 0 0 X Stationary Charging X 0 0 Key: X = Clutch Engaged; 0 = Clutch Disengaged Figure 3 shows a rotating stator hybrid power train where by the gear set is inserted between the electric machine and the final drive gear set. The operation of this embodiment of the power train does not differ from the embodiment shown in figure 1, however allows different ratios to be achieved between the electric machine and the final drive allowing the efficiency of both the electric machine and the source of rotational power to be optimised. The system includes a source of rotational energy, a rotating stator electric machine, an energy storage device, an input shaft and a gear set. The rotatable stator may be allowed to freely rotate or may be held stationary by engaging one or more clutches 19.
The hybrid power train includes one or more clutches 17 allowing the rotor of the electric machine to be engaged and forced to rotate with the input shaft and engine. One or more clutches 17 may also be disengaged allowing the rotor to rotate independently of the engine.
The hybrid power train also contains one or more clutches 18 allowing the engine to be engaged or disengaged from the rotatable stator of the electric machine. The system is able to operate in various modes by varying the states of one or more clutches 17, 18 and 19. The various modes that are achievable are summarised in Table 3.
Table 3
Mode Clutch 17 Clutch 18 Clutch 19 Electric Drive 0 0 X Speed 0 X 0 Torque X 0 X lCStart X 0 X Energy Recovery 0 0 X Stationary Charging 0 X 0 Key: X = Clutch Engaged; 0 = Clutch Disengaged Figure 4 shows a rotatable stator hybrid power train that is similar to that shown in figure 3.
The functionality of the system is identical to that of the system shown in figure 3 however in this instance the rotatable stator machine's orientation is reversed and the rotor is optionally grounded. The system contains a source of rotational energy, a rotating stator electric machine, an energy storage device, an input shaft and a gear set. The rotor may be allowed to freely rotate or may be held stationary by engaging one or more clutches 19.
The hybrid power train includes one or more clutches 17 allowing the rotor of the electric machine to be engaged and forced to rotate with input shaft and engine. One or more clutches 17 may also be disengaged allowing the rotor to rotate independently of the engine. The hybrid power train also contains one or more clutches 18 allowing the engine to be engaged or disengaged from the rotatable stator of the electric machine. The rotatable stator of the electric machine is connected to the gear set and in turn to the final drive gear set. The final drive gear set is connected to output which consists of a rotary output. Various modes of operation are obtainable based on the state of one or more clutches 17, 18 and 19. The various modes that are achievable are summarised in Table 4.
Table 4
Mode Clutch 17 Clutch 18 Clutch 19 Electric Drive 0 0 X Speed X 0 0 Torque 0 X X lCStart 0 X X Energy Recovery 0 0 X Stationary Charging X 0 0 Key: X = Clutch Engaged; 0 = Clutch Disengaged Figure 5 is an application of the concept shown in Figure 3. This particular configuration uses a planetary gear set 30 with a ring gear 25, a planetary gear carrier 26, a sun gear 27, one or more clutches 28 allowing the sun gear to be optionally grounded and one or more clutches 24 that allow connection between the ring gear and planetary carrier, to achieve various ratios.
The output of the electric machine is connected to the planet carrier, the sun gear is connected to one or more clutches 28, and the ring gear is connected to the input of the final drive. One or more clutches 24 is connected to the ring gear and planet carrier and can effectively lock out the planet set achieving a ratio of 1:1. By engaging and disengaging clutches as described in Table 5 different ratios between the electric machine and final drive gear set can be achieved. These ratios can operate in all the modes described in Table 3 giving an array of possible operating modes, summarised in Table 5. Each of these modes has an ideal operating range whereby it is at optimum efficiency. By switching modes based on the drivers input and the operating conditions a high efficiency can be achieved over a large range of driving conditions. This particular configuration allows a multitude of modes including 2 distinct electric drive, speed, torque and energy recovery modes.
Table 5
Mode Clutch 17 Clutch 18 Clutch 19 Clutch 24 Clutch 28 Electric Drive 1 0 0 X X 0 Electric Drive2 0 0 X 0 X Speedl 0 X 0 0 X Speed2 0 X 0 X 0 Torquel X 0 X X 0 Torque2 X 0 X 0 X lCStart X 0 X N/A N/A Energy Recovery 1 0 0 X X 0 Energy Recovery2 0 0 X 0 X Stationary Charging 0 X 0 N/A N/A Key: X = Clutch Engaged; 0 = Clutch Disengaged Fig 6 shows a hybrid drive train in which a generic planetary set 33, consisting of three members, a ring gear a set of planet gear mounted in a carrier and a sun gear, is used as the gear set between the source of rotational energy and the electric machine. The power from the input shaft is split into two paths 35 and 36 respectively. Path 36 is connected to one member of generic planetary set 33 via one or more clutches 37. Path 35 is connected to the second member of generic planetary set 33 via one or more clutches 38. The second member of planetary set 33 is additionally connected to the rotor of the electric machine. The rotatable stator portion of the electric machine is connected to the final member of the planetary set 33, along with one or more clutches 34 which allows the option of grounding both the rotatable stator and coinciding element of the planetary set. This configuration operates in multiple modes dependent on the state of one or more clutches 37, 38 and 34 as outlined in Table 6. It has the benefit of providing multiple modes to ensure that both the source of rotary energy and the electric machine are able to operate efficiently over a wide range of operating conditions with minimal clutches.
Table 6
Mode Clutch 38 Clutch 37 Clutch 34 Electric Drive 0 0 X Speed 0 X 0 Torque X 0 X lCStart X 0 X Energy Recovery 0 0 X Stationary Charging 0 X 0 Key: X = Clutch Engaged; 0 = Clutch Disengaged Figures 7-12 show the various configurations of the planetary set available when using the system shown in figure 6. Figure 7 shows the ring gear mechanically connected to the rotatable stator of the electric machine, the planet carrier mechanically connected to the engine via one or more clutches 38 and to the rotor portion of the electric machine and the sun gear is mechanically connected to the engine via one or more clutches 37.
Figure 8 shows the ring gear mechanically connected to the rotatable stator of the electric machine, the planet carrier mechanically connected to the engine via one or more clutches 37 and the sun gear mechanically connected to the engine via one or more clutches 38 and to the rotor portion of the electric machine.
Figure 9 shows the ring gear mechanically connected to the engine via one or more clutches 37, the planet carrier mechanically connected to the rotatable stator of the electric machine and the sun gear mechanically connected to the engine via one or more clutches 38 and to the rotor portion of the electric machine.
Figure 10 shows the ring gear mechanically connected to the engine via clutch 38 and to the rotor portion of the electric machine, the planet carrier mechanically connected to the rotatable stator of the electric machine and the sun gear mechanically connected to the engine via one or more clutches 37.
Figure 11 shows the ring gear mechanically connected to the engine via one or more clutches 38 and to the rotor portion of the electric machine, the planet carrier mechanically connected to the engine via one or more clutches 37 and the sun gear mechanically connected to the rotatable stator of the electric machine.
Figure 12 shows the ring gear mechanically connected to the engine via one or more clutches 37, the planet carrier mechanically connected to the engine via one or more clutches 38 and to the rotor portion of the electric machine and the sun gear mechanically connected to the rotatable stator of the electric machine.
Figure 13 shows a hybrid drive train in which a generic planetary set 33, consisting of three members, a ring gear a set of planet gear mounted in a carrier and a sun gear, is used as the gear set between the source of rotational energy and the electric machine. This system is similar in operation to the system described in figure 6 however this embodiment of the system see's the electric machines orientation reversed. The power from the input shaft is split into two paths 35 and 36 respectively. Path 35 is connected to one member of generic planetary set 33 via one or more clutches 40. Path 36 is connected to the second member of generic planetary set 33 via one or more clutches 39. The second member of planetary set 33 is additionally connected to the rotatable stator portion of the electric machine. The rotor portion of the electric machine is connected to the final member of the planetary set 33, along with one or more clutches 41 which allow the option of grounding both the rotor and the coinciding element of the planetary set. This configuration operates in multiple modes dependent on the state of clutches 39, 40 and 41 as outlined in Table 7. It has the benefit of providing multiple modes to ensure that both the source of rotary energy and the electric machine are able to operate efficiently over a wide range of operating conditions with minimal clutches.
Table 7
Mode Clutch 39 Clutch 40 Clutch 41 Electric Drive 0 0 X Speed 0 X 0 Torque X 0 X lCStart X 0 X Energy Recovery 0 0 X Stationary Charging 0 X 0 Key: X = Clutch Engaged; 0 = Clutch Disengaged Figures 14-19 show the various configurations of the planetary set available when using the system shown in figure 13. Figure 14 shows the ring gear mechanically connected to the rotor of the electric machine, the planet carrier mechanically connected to the engine via one or more clutches 39 and to the rotatable stator of the electric machine and the sun gear mechanically connected to the engine via one or more clutches 40.
Figure 15 shows the ring gear mechanically connected to the rotor of the electric machine, the planet carrier mechanically connected to the engine via one or more clutches 40 and the sun gear mechanically connected to the engine via one or more clutches 39and to the rotatable stator of the electric machine.
Figure 16 shows the ring gear mechanically connected to the engine via clutch 40, the planet carrier mechanically connected to the rotor portion of the electric machine and the sun gear mechanically connected to the engine via one or more clutches 39 and to the rotatable stator of the electric machine.
Figure 17 shows the ring gear mechanically connected to the engine via clutch 39 and to the rotatable stator of the electric machine, the planet carrier mechanically connected to the rotor portion of the electric machine and the sun gear mechanically connected to the engine via one or more clutches 40.
Figure 18 shows the ring gear mechanically connected to the engine via clutch 39 and to the rotatable stator of the electric machine, the planet carrier mechanically connected to the engine via one or more clutches 40 and the sun gear mechanically connected to the rotor portion of the electric machine.
Figure 19 shows the ring gear mechanically connected to the engine via one or more clutches 40, the planet carrier mechanically connected to the engine via one or more clutches 39 and to the rotatable stator of the electric machine and the sun gear mechanically connected to the rotor portion of the electric machine.
Figure 20 shows a hybrid power train in which a generic planetary set 33, consisting of three members, a ring gear a set of planet gear mounted in a carrier and a sun gear, is used as the gear set between the electric machine and the final drive gear set. The rotatable stator is connected to one of the members of the planetary set 33, along with clutch 31 allowing the rotatable stator and the corresponding member of the planetary set to be optionally grounded.
The rotor is connected to a second member of the planetary set 33 and the final drive gear set is connected to the final element of the planetary set 33. This configuration allows multiple distinct modes by varying the state of clutches 17, 18 and 31 as outlined in Table 8.
Table 8
Mode Clutch 17 Clutch 18 Clutch3l Electric Drive 0 0 X Speed 0 X 0 Torque X 0 X lCStart X 0 X Energy Recovery 0 0 X Stationary Charging 1 0 X 0 Stationary Charging 2 X 0 0 Key: X = Clutch Engaged; 0 = Clutch Disengaged Figure 21 shows a hybrid drive train in which a generic planetary set 33, consisting of three members, a ring gear a set of planet gear mounted in a carrier and a sun gear, is used as the gear set between the electric machine and the final drive gear set. This system is similar in operation to the system described in figure 20 however this embodiment of the system see's the electric machines orientation reversed. The rotor portion of the electric machine is connected to one of the members of the planetary set 33, along with clutch 43 allowing the rotor and the corresponding member of the planetary set to be optionally grounded. The rotatable stator is connected to a second member of the planetary set 33 and the final drive gear set is connected to the final element of the planetary set 33. This configuration allows multiple distinct modes by varying the state of clutches 17, 18 and 43 as outlined in Table 9.
Table 9
Mode Clutch 17 Clutch 18 Clutch 43 Electric Drive 0 0 X Speed X 0 0 Torque 0 X X lCStart 0 X X Energy Recovery 0 0 X Stationary Charging 1 0 X 0 Stationary Charging 2 X 0 0 Key: X = Clutch Engaged; 0 = Clutch Disengaged Figures 22-27 show the various configurations of the planetary set available when using the system shown in figures 20 and 21. Figure 22 shows the ring gear mechanically connected to the rotatable stator of the electric machine, the planet carrier mechanically connected to the rotor of the electric machine and the sun gear mechanically connected to the final drive gear set.
Figure 23 shows the ring gear mechanically connected to the rotor of the electric machine, the planet carrier mechanically connected to the rotatable stator of the electric machine and the sun gear mechanically connected to the final drive gear set.
Figure 24 shows the ring gear mechanically connected to the rotatable stator of the electric machine, the planet carrier mechanically connected to the final drive gear set and the sun gear mechanically connected to the rotor of the electric machine.
Figure 25 shows the ring gear mechanically connected to the rotor of the electric machine, the planet carrier mechanically connected to the final drive gear set and the sun gear mechanically connected to the rotatable stator of the electric machine.
Figure 26 shows the ring gear mechanically connected to the final drive gear set, the planet carrier mechanically connected to the rotor of the electric machine and the sun gear mechanically connected to the rotatable stator of the electric machine.
Figure 27 shows the ring gear mechanically connected to the final drive gear set, the planet carrier mechanically connected to the rotatable stator of the electric machine and the sun gear mechanically connected to the rotor of the electric machine.

Claims (33)

  1. CLAIMS1. A hybrid power train for interconnecting an output of an engine to a drive, the hybrid power train comprising: an electrical rotating machine, comprising: a first rotatable member, and a second rotatable member; the electrical rotating machine able to act as a generator or as a motor; an energy storage device electrically connected to the electrical rotating machine and configured to supply electrical power to or receive electrical power from the electrical rotating machine; a first mechanical coupling device capable of being selected to reversibly connect the first rotatable member to the output of the engine; a second mechanical coupling device capable of being selected to reversibly connect the second rotatable member to the output of the engine; a third mechanical coupling device capable of being selected to reversibly connect one of the rotatable members to a ground point; in which the other of the rotatable members is mechanically connected to an output of the electrical rotating machine; wherein the hybrid power train operates in a mode according to which of the mechanical coupling devices are selected to connect.
  2. 2. A hybrid power train as claimed in claim I in which the second rotatable member is connected to the ground point and the first rotatable member is connected to an output of the electrical rotating machine.
  3. 3. A hybrid power train as claimed in claim 2 including a planetary gear set comprising a ring gear, a planet carrier, and a sun gear; the planetary gear set mechanically interconnecting the first and second rotatable members and the first and second mechanical coupling devices.
  4. 4. A hybrid power train as claimed in claim 3 in which the first and second rotatable members are respectively mechanically connected to the planet carrier and the ring gear, and the first and second mechanical coupling devices are respectively mechanically connected to the planet carrier and the sun gear.
  5. 5. A hybrid power train as claimed in claim 3 in which the first and second rotatable members are respectively mechanically connected to the sun gear and the ring gear, and the first and second mechanical coupling devices are respectively mechanically connected to the sun gear and the planet carrier.
  6. 6. A hybrid power train as claimed in claim 3 in which the first and second rotatable members are respectively mechanically connected to the sun gear and the planet carrier, and the first and second mechanical coupling devices are respectively mechanically connected to the sun gear and the ring gear.
  7. 7. A hybrid power train as claimed in claim 3 in which the first and second rotatable members are respectively mechanically connected to the ring gear and the planet carrier, and the first and second mechanical coupling devices are respectively mechanically connected to the ring gear and the sun gear.
  8. 8. A hybrid power train as claimed in claim 3 in which the first and second rotatable members are respectively mechanically connected to the ring gear and the sun gear, and the first and second mechanical coupling devices are respectively mechanically connected to the ring gear and the planet carrier.
  9. 9. A hybrid power train as claimed in claim 3 in which the first and second rotatable members are respectively mechanically connected to the planet carrier and the sun gear, and the first and second mechanical coupling devices are respectively mechanically connected to the planet carrier and the ring gear.
  10. 10. A hybrid power train as claimed in claim 2 including a planetary gear set comprising a ring gear, a planet carrier, and a sun gear; the planetary gear set mechanically interconnecting the first and second rotatable members and the drive.
  11. 11. A hybrid power train as claimed in claim I in which the first rotatable member is connected to the ground point and the second rotatable member is connected to an output of the electrical rotating machine.
  12. 12. A hybrid power train as claimed in claim 11 including a planetary gear set comprising a ring gear, a planet carrier, and a sun gear; the planetary gear set mechanically interconnecting the first and second rotatable members and the first and second mechanical coupling devices.
  13. 13. A hybrid power train as claimed in claim 12 in which the first and second rotatable members are respectively mechanically connected to the ring gear and the planet carrier, and the first and second mechanical coupling devices are respectively mechanically connected to the sun gear and the planet carrier.
  14. 14. A hybrid power train as claimed in claim 12 in which the first and second rotatable members are respectively mechanically connected to the ring gear and the sun gear, and the first and second mechanical coupling devices are respectively mechanically connected to the planet carrier and the sun gear.
  15. 15. A hybrid power train as claimed in claim 12 in which the first and second rotatable members are respectively mechanically connected to the planet carrier and the sun gear, and the first and second mechanical coupling devices are respectively mechanically connected to the ring gear and the sun gear.
  16. 16. A hybrid power train as claimed in claim 12 in which the first and second rotatable members are respectively mechanically connected to the planet carrier and the ring gear, and the first and second mechanical coupling devices are respectively mechanically connected to the sun gear and the ring gear.
  17. 17. A hybrid power train as claimed in claim 12 in which the first and second rotatable members are respectively mechanically connected to the sun gear and the ring gear, and the first and second mechanical coupling devices are respectively mechanically connected to the planet carrier and the ring gear.
  18. 18. A hybrid power train as claimed in claim 12 in which the first and second rotatable members are respectively mechanically connected to the sun gear and the planet carrier, and the first and second mechanical coupling devices are respectively mechanically connected to the ring gear and the planet carrier.
  19. 19. A hybrid power train as claimed in claim 11 including a planetary gear set comprising a ring gear, a planet carrier, and a sun gear; the planetary gear set mechanically interconnecting the first and second rotatable members and the drive.
  20. 20. A hybrid power train as claimed in claim 19 in which the first and second rotatable members are respectively mechanically connected to the planet carrier and the ring gear, and the sun gear is connected to the drive.
  21. 21. A hybrid power train as claimed in claim 19 in which the first and second rotatable members are respectively mechanically connected to the ring gear and the planet carrier, and the sun gear is connected to the drive.
  22. 22. A hybrid power train as claimed in claim 19 in which the first and second rotatable members are respectively mechanically connected to the sun gear and the ring gear, and the planet carrier is connected to the drive.
  23. 23. A hybrid power train as claimed in claim 19 in which the first and second rotatable members are respectively mechanically connected to the ring gear and the sun gear, and the planet carrier is connected to the drive.
  24. 24. A hybrid power train as claimed in claim 19 in which the first and second rotatable members are respectively mechanically connected to the planet carrier and the sun gear, and the ring gear is connected to the drive.
  25. 25. A hybrid power train as claimed in claim 19 in which the first and second rotatable members are respectively mechanically connected to the sun gear and the planet carrier, and the ring gear is connected to the drive.
  26. 26. A hybrid power train as claimed in any of claims 2 to 25 in which the first and second mechanical coupling devices are not selected to connect, and in which the third mechanical coupling device is selected to connect, wherein the mode is electric drive or energy recovery.
  27. 27. A hybrid power train as claimed in any of claims 2 to 10 in which the first and third mechanical coupling devices are not selected to connect, and in which the second mechanical coupling device is selected to connect, wherein the mode is speed addition or stationary charging.
  28. 28. A hybrid power train as claimed in any of claims 2 to 10 in which the first and third mechanical coupling devices are selected to connect, and in which the second mechanical coupling device is not selected to connect, wherein the mode is torque addition or engine start.
  29. 29. A hybrid power train as claimed in any of claims 11 to 25 in which the second and third mechanical coupling devices are not selected to connect, and in which the first mechanical coupling device is selected to connect, wherein the mode is speed addition or stationary charging.
  30. 30. A hybrid power train as claimed in any of claims 11 to 25 in which the second and third mechanical coupling devices are selected to connect, and in which the first mechanical coupling device is not selected to connect, wherein the mode is torque addition or engine start.
  31. 31. A hybrid power train as claimed in claim I including a gear set mechanically connecting the output of the engine to the first and second mechanical coupling devices.
  32. 32. A hybrid power train as claimed in claim I including a gear set mechanically connecting one of the first and second rotatable members to an output of the electrical rotating machine. -21 -
  33. 33. A hybrid power train as claimed in claim 2 including a planetary gear set comprising a ring gear, a planet carrier, and a sun gear; in which the output of the electrical rotating machine is mechanically connected to the planet carrier; the drive is connected to the ring gear; the output of the electrical rotating machine is also connected via a fourth selectable connector to the drive, and the sun gear is connected via a fifth selectable connector to a ground point.
GB1015424.3A 2010-09-14 2010-09-15 Hybrid power train Active GB2483673B (en)

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CN2011203526792U CN202557274U (en) 2010-09-14 2011-09-14 Hybrid power train
CN201110277458.8A CN102398506B (en) 2010-09-14 2011-09-14 Hybrid power train

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WO2013168183A1 (en) * 2012-05-10 2013-11-14 Tvs Motor Company Limited Integrated unit for motor integrated hybrid transmission control and engine control
JP2018033315A (en) * 2011-02-24 2018-03-01 楊　泰和 Dual-drive electric machine
US11919399B2 (en) 2019-04-12 2024-03-05 Weichai Power Co., Ltd. Hybrid power system

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CN109606092A (en) * 2018-12-28 2019-04-12 湖北航天技术研究院特种车辆技术中心 A kind of dual-mode power coupling device based on double-rotor machine

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US11919399B2 (en) 2019-04-12 2024-03-05 Weichai Power Co., Ltd. Hybrid power system

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CN102398506A (en) 2012-04-04
GB201015311D0 (en) 2010-10-27
GB2483673B (en) 2014-01-01
CN202557274U (en) 2012-11-28
CN102398506B (en) 2017-02-01

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