CN113479056A - Power coupling system, automobile and control method - Google Patents

Power coupling system, automobile and control method Download PDF

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Publication number
CN113479056A
CN113479056A CN202110782691.5A CN202110782691A CN113479056A CN 113479056 A CN113479056 A CN 113479056A CN 202110782691 A CN202110782691 A CN 202110782691A CN 113479056 A CN113479056 A CN 113479056A
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CN
China
Prior art keywords
planetary gear
gear mechanism
power
flywheel
power coupling
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Pending
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CN202110782691.5A
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Chinese (zh)
Inventor
李琳
张铁柱
孟令菊
刘瑞元
孙宾宾
冯超
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Shandong University of Technology
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Shandong University of Technology
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Application filed by Shandong University of Technology filed Critical Shandong University of Technology
Priority to CN202110782691.5A priority Critical patent/CN113479056A/en
Publication of CN113479056A publication Critical patent/CN113479056A/en
Pending legal-status Critical Current

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    • 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
    • B60K6/24—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 combustion engines
    • 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
    • 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
    • B60K6/30—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 chargeable mechanical accumulators, e.g. flywheels
    • 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
    • B60K6/36—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 transmission gearings
    • B60K6/365—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 transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
    • 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
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • 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
    • 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
    • B60W30/18—Propelling the vehicle
    • B60W30/182—Selecting between different operative modes, e.g. comfort and performance modes
    • 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
    • B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
    • 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
    • B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
    • B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
    • B60W40/105—Speed
    • 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
    • B60W2510/06—Combustion engines, Gas turbines
    • B60W2510/0638—Engine speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
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    • B60W2510/081—Speed
    • 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
    • B60W2520/00—Input parameters relating to overall vehicle dynamics
    • B60W2520/10—Longitudinal speed
    • 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
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    • 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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/08—Electric propulsion units
    • B60W2710/083—Torque
    • 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
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention discloses a power coupling system, which comprises a power coupling module, a main drive hydraulic system and a flywheel, wherein the power coupling module comprises a planetary gear mechanism and a control motor, the planetary gear mechanism is used for being connected with a power input end and a power output end, the control motor is connected with the planetary gear mechanism, and the control motor can regulate and control the input torque, the output torque and/or the rotating speed of the planetary gear mechanism; the main drive hydraulic system is connected with the planetary gear mechanism; the flywheel is connected with the planetary gear mechanism through the transmission assembly, and is directly in power coupling with the power output end in a mechanical energy form, multiple energy conversion is not needed, and the braking energy recovery efficiency is high; the control motor performs auxiliary energy management through the planetary gear mechanism, replaces a stepless speed changer, and can supplement flywheel energy at any time and adjust the rotation speed of the flywheel. The invention further provides an automobile comprising the power coupling system. The invention further provides a control method based on the automobile.

Description

Power coupling system, automobile and control method
Technical Field
The invention belongs to the technical field of automobiles, and relates to a power coupling system in a hydraulic automobile, in particular to a novel power coupling system, an automobile comprising the power coupling system and an automobile control method.
Background
The hydraulic transmission can output large thrust or large torque, and under the condition of the same power, the hydraulic transmission device has small volume, light weight and compact structure, thereby being widely applied to the field of hydraulic drive vehicles of traffic transportation, engineering machinery, military industry, national defense and the like.
With the development of hybrid technology for vehicles, particularly in hybrid vehicles, a great deal of research has been focused on how to convert and store energy between a power battery and an internal combustion engine. However, for the occasions requiring hydraulic power, how to effectively integrate electric energy and hydraulic energy through reasonable system design and power transformation, and to utilize a motor to control an actuating element and a hydraulic device to output higher hydraulic power is still a technical problem of common research of people at present.
Disclosure of Invention
One of the objectives of the present invention is to provide a novel power coupling system to fill up the technical gap of effectively integrating electrical energy and hydraulic energy in the existing hybrid electric vehicle technology, and further solve the problems existing in the prior art.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a power coupling system based on a planet row, in particular to an electric control flywheel hydraulic power coupling system, which mainly comprises:
the power coupling module comprises a planetary gear mechanism and a control motor; the planetary gear mechanism is used for being connected with a power output end, the control motor is connected with the planetary gear mechanism, and the control motor can regulate and control input torque, output torque and/or rotating speed of the planetary gear mechanism; the main drive hydraulic system is used as a power input end and is connected with the planetary gear mechanism;
the flywheel is connected with the planetary gear mechanism through a transmission assembly and is in power coupling with the power output end; the flywheel is connected with a flywheel brake.
Optionally, the planetary gear mechanism is a single-row planetary gear mechanism, which includes:
the sun wheel is fixedly sleeved on the sun wheel shaft, and the control motor is connected with the sun wheel;
a plurality of planet wheels, wherein any one of the planet wheels is meshed with the sun wheel;
the planet carrier is used for mounting the planet wheel;
the gear ring is positioned on the outer ring of the planet wheel, and any planet wheel is meshed with the inner ring of the gear ring.
Optionally, the transmission assembly includes:
the first reduction gear is fixedly sleeved on the outer ring of the gear ring;
and the second reduction gear is coaxially arranged with the flywheel and is meshed with the first reduction gear.
Optionally, the power output end is an automobile drive axle.
Optionally, the power coupling module further includes a power battery, and the power battery is connected to the control motor and is configured to convert mechanical energy of the control motor into electric energy or provide driving force for the control motor.
Optionally, the main drive hydraulic system is a main drive hydraulic motor.
It is another object of the present invention to provide a vehicle including the power coupling system as described above.
Still another object of the present invention is to provide a control method based on the above automobile, including:
receiving input signals, wherein the input signals comprise pedal travel, vehicle speed, rotating speed of the control motor and rotating speed of the main drive hydraulic system;
analyzing the input signal to judge the running state of the automobile, the driving intention, the state of the flywheel and the state of the planetary gear mechanism;
calculating the current torque capacity of the control motor and the main drive hydraulic system;
controlling the automobile to enter a parking mode, a driving mode or a braking mode;
and controlling the control motor and the main drive hydraulic system to output required torque according to the running condition of the automobile, and distributing the torque to a drive axle.
Optionally, the input signal further includes a power battery remaining capacity.
Compared with the prior art, the invention has the following technical effects:
according to the power coupling system based on the planet row, the flywheel is in direct power coupling with the power output end through the planet gear mechanism, multiple energy conversion is not needed, and the braking energy recovery efficiency is high; the control motor performs auxiliary energy management through a planetary gear mechanism, replaces a stepless speed changer, can supplement flywheel energy at any time, and quickly responds to and adjusts the rotation speed of the flywheel.
The power coupling system is additionally provided with the flywheel, the control motor and the planetary gear mechanism on the basis of the original hydraulic power system, realizes the storage and release of energy by utilizing the instantaneous high-power output and input of the flywheel during high-speed rotation, effectively recovers the braking energy and assists the braking and driving of the vehicle.
The power coupling system establishes the connection with the planetary gear mechanism through the control motor, controls the input and output torque and the rotating speed, realizes the power coupling function, is favorable for improving the energy utilization rate, and simultaneously plays a role in prolonging the service life of the system.
The automobile comprises the power coupling system, the flywheel is directly in power coupling with a power output end (such as a drive axle) through the planetary gear mechanism, multiple energy conversion is not needed, the braking energy recovery efficiency is high, and the automobile can play a role in assisting the braking and driving of the automobile. In addition, since the vehicle includes the power coupling system, the beneficial effects of the power coupling system are all possessed by the vehicle, and are not described herein again.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a power coupling system according to an embodiment of the present invention;
FIG. 2 is a flowchart of a control method according to an embodiment of the present invention;
wherein the reference numerals are: 1-main drive hydraulic motor; 2-a power coupling module; 3-a planetary gear mechanism; 4-a planet carrier; 5, a gear ring; 6-a first reduction gear; 7-a flywheel; 8-flywheel brake; 9-a drive axle; 10-a second reduction gear; 11-a planet wheel; 12-sun gear; 13-a power battery; and 14, controlling the motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
One of the objectives of the present invention is to provide a novel power coupling system to fill up the technical gap of effectively integrating electrical energy and hydraulic energy in the existing hybrid electric vehicle technology, and further solve the problems existing in the prior art.
It is another object of the present invention to provide a vehicle including the power coupling system as described above.
The invention further aims to provide a control method based on the automobile.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example one
The embodiment provides a novel power coupling system to realize the recovery of hydraulic drive vehicle kinetic energy and recycle, improve vehicle security, dynamic property and economic nature. As shown in fig. 1, the power coupling system is specifically an electronic control flywheel hydraulic power coupling system based on a planet row, and includes a main drive hydraulic motor 1, a power coupling module 2, a flywheel 7 and a flywheel brake 8. The power coupling module 2 comprises a power battery 13, a control motor 14 and a planetary gear mechanism 3, wherein the planetary gear mechanism 3 comprises a sun gear 12, a planet gear 11, a planet carrier 4 and a ring gear 5. The main drive hydraulic motor 1 is connected with a planet carrier 4, and the planet carrier 4 is connected with a drive axle 9 of a vehicle so as to output power; the power battery 13 is connected with the control motor 14, and the control motor 14 is connected with the sun gear 12; the flywheel 7 is connected with the gear ring 5 through a first reduction gear 6 and a second reduction gear 10; the flywheel brake 8 is connected to the flywheel 7. Wherein, first reduction gear 6 and second reduction gear 10 intermeshing, first reduction gear 6 is fixed to be set up in the excircle side of ring gear 5, and second reduction gear 10 and flywheel 7 coaxial setting all fix and set up on the flywheel axle. The flywheel 7 is in direct power coupling with the power output end through the planetary gear mechanism 3, multiple energy conversion is not needed, the braking energy recovery efficiency is high, and meanwhile, the driving of a vehicle can be assisted; the control motor 14 performs auxiliary energy management through the planetary gear mechanism 3, replaces a stepless speed changer, can supplement energy of the flywheel 7 at any time, and quickly responds and adjusts the rotating speed, the torque and the power of the flywheel 7.
In the present embodiment, the planetary gear mechanism 3 is preferably a single row planetary gear mechanism, the ring gear 5 of which is located at the outer ring of the planetary gears 11, and any planetary gear 11 is simultaneously meshed with the inner ring of the ring gear 5 and the sun gear 12. The single-row planetary gear mechanism is an existing mechanism and is mainly used for speed change, and specific principles and structures are not described herein again; the planetary gear mechanism 3 may be provided as other planetary gear mechanisms, such as a multi-row planetary gear mechanism, a single-stage planetary gear mechanism, a double-stage planetary gear mechanism, or the like, in addition to the single-row planetary gear mechanism described above.
In the embodiment, a main drive hydraulic motor 1 is used as an input end, passes through a planet carrier 4, is in power coupling with a flywheel 7 through a planetary gear mechanism 3, and outputs the power to a drive axle 9; the control motor 14 assists the flywheel 7 in storing and releasing energy according to the vehicle operating conditions.
The embodiment also provides an automobile comprising the power coupling system, and an output end of the power coupling system is connected with an output bridge of the automobile. In the actual running process of the automobile, the working state of the power coupling system can be divided into the following modes:
a starting mode: when the automobile is in cold start, the main drive hydraulic motor 1 and the control motor 14 output positive torque; the planet gear 11 is locked, the planet gear mechanism 3 rotates as a whole, namely the rotation speed and direction of the sun gear 12, the planet carrier 4 and the gear ring 5 are the same, the planet carrier 4 assists the drive axle 9 to rotate, and the gear ring 5, the first reduction gear 6 and the second reduction gear 10 drive the flywheel 7 to rotate, so that the flywheel 7 has initial kinetic energy to ensure the normal operation of the subsequent working conditions; and when the automobile continues to accelerate and reaches the highest speed, entering a high-speed cruising mode.
(II) high-speed cruise mode: when the vehicle speed reaches the maximum, the main drive hydraulic motor 1 or the control motor 14 reaches the maximum rotating speed, the rotating speed of the flywheel 7 is constant, and the mode is a constant power output mode.
(III) providing an additional mechanical power mode: when the automobile is in a starting state from an idle speed (neutral gear) or needs overtaking and climbing, the flywheel 7 is in a high-speed rotating state and stores kinetic energy recovered by automobile braking, and at the moment, the flywheel and the control motor 14 and the main drive hydraulic motor 1 drive the automobile together so as to improve the acceleration and climbing performance of the automobile. The additional mechanical power modes are mainly classified into the following ones:
(1) acceleration mode 1: the rotating speed of the flywheel 7 is reduced, energy is released, and positive torque is output; in the braking energy recovery stage of the system, in order to convert the kinetic energy of the automobile into mechanical energy of the flywheel as much as possible, the motor 14 is controlled to output positive torque and negative rotating speed; and the output is coupled through the planetary gear mechanism 3. One part of the mechanical energy of the flywheel is directly converted into the kinetic energy of the automobile, and the other part of the mechanical energy is converted into a small part of electric energy through the control motor 14 to be stored in the power battery 13, so that the main drive hydraulic motor 1 can be assisted to accelerate.
(2) Acceleration mode 2: the automobile continues to accelerate, and when a certain speed is reached, the rotating speed of the motor 14 is controlled to change from negative to positive; the main drive hydraulic motor 1 still outputs positive torque and positive rotating speed; the rotation speed of the flywheel 7 is continuously reduced, and the stored mechanical energy is completely converted into the kinetic energy of the automobile.
(3) Acceleration mode 3: the speed of the vehicle is continuously increased, the rotating speed of the flywheel 7 is reduced to zero, and the energy is completely released; at this time, the ring gear 5 is fixed, the sun gear 12 is input, and the planet carrier 4 is output; the mode is the same as the working condition of the starting acceleration mode 1, and the main drive hydraulic motor 1 and the control motor 14 output positive torque and positive rotating speed.
(IV) mechanical load filtering mode: when the load changes, in order to ensure that the main drive hydraulic motor 1 is not influenced by the load fluctuation and works in the optimal steady state working condition, the whole vehicle controller can adjust and control the rotating speed of the motor 14, control the rotating speed of the sun gear 12, and output the rotating speed to the planet carrier 4 together with the flywheel 7 through the planetary gear mechanism 3 to adjust the fluctuation of the main drive hydraulic motor 1.
(V) constant speed driving mode: when the automobile runs at a constant speed, the rotating speed of the flywheel 7 is kept constant at the moment.
(VI) braking energy recovery mode: when the automobile slows down a slope or brakes to decelerate, the sun gear 12 and the gear ring 5 are used as input, and the planet carrier 4 is used as output. The main drive hydraulic motor 1 does not work and idles; controlling the motor 14 to output a negative torque; the rotating speed of the flywheel 7 is increased, negative torque is output, and the torque output by the control motor 14 is coupled with the planetary gear mechanism 3 and then output to the planet carrier 4 to provide partial braking torque; meanwhile, a small part of braking energy is converted into electric energy through the control motor 14 and stored in the power battery 13, and a large part of braking energy is directly stored in the flywheel 7 in the form of mechanical energy, and the vehicle speed is reduced. If the flywheel 7 reaches the set maximum rotating speed, the automobile stops braking, energy is recovered, and the rotating speed of the flywheel 7 is not increased any more.
(VII) idling and flameout modes: when the speed of the automobile is reduced to zero, the automobile enters an idling state, the main drive hydraulic motor 1 and the control motor 14 do not work, and the flywheel 7 is in a high-speed free running state. When the automobile is flamed out, the flywheel brake 8 is closed, the rotating speed of the flywheel 7 is gradually reduced, the planet carrier 4 is static, the motor 14 is controlled to work in a generator state, and residual kinetic energy in the deceleration process of the flywheel 7 is converted into electric energy to be stored in the power battery 13.
As shown in fig. 2, a method for operating the vehicle will be specifically described below based on the vehicle. The method mainly comprises the following steps:
(1) a driver operates an accelerator pedal, a brake pedal and the like, and the whole vehicle receives an input signal; the input signals include signals of pedal travel, vehicle speed, SOC (power battery remaining capacity) of the power battery 13, rotation speed of the control motor 14, rotation speed of the main drive hydraulic motor 1, and the like.
(2) Analyzing and judging the input signal through the vehicle control unit: judging the running state of the vehicle, the driving intention of the driver and the states of the flywheel 7 and the planetary gear mechanism 3; the current SOC states of the flywheel 7 and the power battery 13 and the current torque capacity of the control motor 14 and the main drive hydraulic motor 1 are calculated through the vehicle control unit; and judging to enter a brake recovery mode, a driving mode or a parking mode in the next step according to the intention of the driver.
(3) Mode switching: and after the signal analysis of the vehicle controller is finished, controlling the vehicle to enter one of a parking mode, a driving mode and a braking mode. The specific mode switching is determined according to actual conditions.
(4) Torque distribution: and outputting the torque required by the main drive hydraulic motor 1 and the control motor 14 according to the running condition of the whole vehicle, distributing the torque to the drive axle 9, and finally correcting the output signal.
(5) And outputting the corrected output signal.
Therefore, the power coupling system of the embodiment is added with the flywheel 7, the control motor 14 and the planetary gear mechanism 3 on the basis of the original hydraulic power system, and utilizes instantaneous high-power output and input when the flywheel 7 rotates at high speed,
the filtering of mechanical load can be realized, and the main drive hydraulic motor is ensured to stably work in a high-efficiency area;
effectively recovering the braking energy of the mechanical load and assisting the vehicle to brake and drive;
and thirdly, under the state of the maximum power of the main drive hydraulic motor 1, the flywheel 7 can instantly provide additional mechanical power, and the capacity of overcoming mechanical load can be greatly improved.
And fourthly, establishing a connection with the planetary gear mechanism 3 by controlling the motor 14, controlling input and output torque and rotating speed, realizing a power coupling function, improving the energy utilization rate and simultaneously playing a role in prolonging the service life of the system.
The foregoing is considered as illustrative of the embodiments of the invention and is not to be construed as limiting the invention in any way, and any variations or modifications which fall within the spirit of the invention may be made by those skilled in the art. Any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are included in the scope of protection of the present invention, unless departing from the technical solution of the present invention.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, this summary should not be construed to limit the present invention.

Claims (9)

1. A power coupling system, comprising:
the power coupling module comprises a planetary gear mechanism and a control motor; the planetary gear mechanism is used for being connected with a power output end, the control motor is connected with the planetary gear mechanism, and the control motor can regulate and control input torque, output torque and/or rotating speed of the planetary gear mechanism;
the main drive hydraulic system is used as a power input end and is connected with the planetary gear mechanism;
the flywheel is connected with the planetary gear mechanism through a transmission assembly and is in power coupling with the power output end; the flywheel is connected with a flywheel brake.
2. The power coupling system of claim 1, wherein the planetary gear mechanism is a single row planetary gear mechanism comprising:
the sun wheel is fixedly sleeved on the sun wheel shaft, and the control motor is connected with the sun wheel;
a plurality of planet wheels, wherein any one of the planet wheels is meshed with the sun wheel;
the planet carrier is used for mounting the planet wheel;
the gear ring is positioned on the outer ring of the planet wheel, and any planet wheel is meshed with the inner ring of the gear ring.
3. The power coupling system of claim 2, wherein the transmission assembly comprises:
the first reduction gear is fixedly sleeved on the outer ring of the gear ring;
and the second reduction gear is coaxially arranged with the flywheel and is meshed with the first reduction gear.
4. The power coupling system of claim 1, wherein the power take-off is an automotive transaxle.
5. The power coupling system of claim 1, wherein the power coupling module further comprises a power battery, and the power battery is connected to the control motor and is configured to convert mechanical energy of the control motor into electrical energy or provide driving force for the control motor.
6. The power coupling system of claim 1, wherein the main drive hydraulic system is a main drive hydraulic motor.
7. An automobile, characterized by comprising the power coupling system as claimed in any one of claims 1 to 6.
8. A control method for an automobile according to claim 7, the automobile including a drive axle connected to the planetary gear mechanism, the control method comprising:
receiving input signals, wherein the input signals comprise pedal travel, vehicle speed, rotating speed of the control motor and rotating speed of the main drive hydraulic system;
analyzing the input signal to judge the running state of the automobile, the driving intention, the state of the flywheel and the state of the planetary gear mechanism;
calculating the current torque capacity of the control motor and the main drive hydraulic system;
controlling the automobile to enter a parking mode, a driving mode or a braking mode;
and controlling the control motor and the main drive hydraulic system to output required torque according to the running condition of the automobile, and distributing the torque to a drive axle.
9. The method of claim 8, wherein the input signal further comprises a power battery remaining capacity.
CN202110782691.5A 2021-07-12 2021-07-12 Power coupling system, automobile and control method Pending CN113479056A (en)

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