CN110027399A - 附件驱动系统 - Google Patents

附件驱动系统 Download PDF

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Publication number
CN110027399A
CN110027399A CN201811492564.6A CN201811492564A CN110027399A CN 110027399 A CN110027399 A CN 110027399A CN 201811492564 A CN201811492564 A CN 201811492564A CN 110027399 A CN110027399 A CN 110027399A
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CN
China
Prior art keywords
drive member
flexible drive
accessory
torque
belt
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.)
Pending
Application number
CN201811492564.6A
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English (en)
Inventor
尼克·达什伍德·克里斯普
伊恩·罗宾逊
戴夫·珀金斯
瓦斯姆·库巴
尼科尔·巴雷特
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.)
Ford Global Technologies LLC
Original Assignee
Ford Global Technologies LLC
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Filing date
Publication date
Application filed by Ford Global Technologies LLC filed Critical Ford Global Technologies LLC
Publication of CN110027399A publication Critical patent/CN110027399A/zh
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00421—Driving arrangements for parts of a vehicle air-conditioning
    • B60H1/0045—Driving arrangements for parts of a vehicle air-conditioning mechanical power take-offs from the vehicle propulsion unit
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B60K6/36—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B60L1/003—Supplying electric power to auxiliary equipment of vehicles to auxiliary motors, e.g. for pumps, compressors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/10—Dynamic electric regenerative braking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/30—Conjoint control of vehicle sub-units of different type or different function including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
    • F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/003—Starting of engines by means of electric motors said electric motor being also used as a drive for auxiliaries, e.g. for driving transmission pumps or fuel pumps during engine stop
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B60K2006/268—Electric drive motor starts the engine, i.e. used as starter motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/08—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing being of friction type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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Abstract

一种机动车辆的附件驱动系统的操作方法，其中该附件驱动系统包含：一个或多个附件部件；机动车辆的马达发电机；柔性驱动元件，该柔性驱动元件被配置为在一个或多个附件部件和马达发电机之间传递扭矩载荷，其中操作方法包含：确定柔性驱动元件的状态；基于所确定的柔性驱动元件的状态来确定最大允许的柔性驱动元件扭矩阈值；检测柔性驱动元件上的扭矩需求的增加；确定柔性驱动元件上的扭矩需求何时将超过柔性驱动元件扭矩阈值；并且减少一个或多个附件部件和马达发电机中的至少一个的扭矩需求，以使柔性驱动元件扭矩阈值不被超过。

Description

附件驱动系统
技术领域
本发明涉及一种具有改进性能的附件驱动系统，并且具体地但非排他性地涉及一种用于混合动力机动车辆的附件驱动系统，其中柔性驱动元件(例如驱动皮带)在驱动皮带的使用寿命内的逐渐劣化被解反映。
背景技术
传统的混合动力车辆使用内燃发动机和电动马达的组合。电动马达还可以充当发电机并且提供再生制动，以使车辆的动能随着车辆减慢速度而恢复。利用轻度混合动力配置，电动马达可以设置在前端附件驱动器(FEAD)中并且通过柔性驱动元件(例如驱动皮带)连接到内燃发动机。这种装置被称为皮带集成启动发电机(B-ISG)系统。在这样的系统中，电动马达通过FEAD提供扭矩辅助和再生能量恢复。为了最佳的混合动力性能，B-ISG必须以最大充电电势操作以便在恢复事件期间恢复或收获尽可能多的动能。通过向发动机的曲柄轴提供扭矩辅助，B-ISG能够抵消或补充发动机扭矩。
FEAD系统的一个关键限制是可以通过驱动皮带传递的最大扭矩。最大驱动皮带扭矩是可以在驱动皮带经历寄生损失(例如驱动皮带打滑或拉伸)之前通过驱动皮带传递的扭矩的限制，并且扭矩传递减小。这种限制减少了混合动力系统的潜在益处，例如，通过在再生恢复期间阻止最佳性能。这种限制可以降低皮带驱动部件的效率，并且可以降低在常规使用期间的整体混合动力性能。因此，减少FEAD的寄生损失以便防止驱动皮带损坏，延长驱动皮带的使用寿命并且防止通过驱动皮带的扭矩传递的损失是期望的。
随着驱动皮带老化或以其他方式劣化，其可以传递的最大驱动皮带扭矩减小，从而加重上述问题。
参照图1，被动前端附件驱动系统100包括发电机皮带轮102、驱动皮带轮104、附件部件皮带轮106(例如空调压缩机皮带轮)、第一惰轮皮带轮108、第二惰轮皮带轮110、惰轮皮带轮连接器120和驱动皮带112，该驱动皮带112包含第一驱动皮带部分114、第二驱动皮带部分116和第三驱动皮带部分118。图1中每个皮带轮的箭头表示每个皮带轮的旋转方向。
在被动前端附件驱动系统100中，如图1所示，发电机皮带轮102、驱动皮带轮104和空调压缩机皮带轮106设置成三角形，其中驱动皮带112围绕每个皮带轮的外圆周包裹，从而连接皮带轮并将驱动皮带112分成三个部分。第一驱动皮带部分114连接驱动皮带轮104和空调压缩机皮带轮106，第二驱动皮带部分116连接空调压缩机皮带轮106和发电机皮带轮102，第三驱动皮带部分连接驱动皮带轮104和发电机皮带轮102。
惰轮皮带轮连接器120相对于驱动皮带轮104、发电机皮带轮102和空调压缩机皮带轮106大体上居中地安装。第一惰轮皮带轮108和第二惰轮皮带轮110连接到惰轮皮带轮连接器120，并且通过与惰轮皮带轮连接器120相关联的偏置元件(例如张力弹簧(未示出))朝向彼此偏置。
第一惰轮皮带轮108设置在发电机皮带轮102和空调压缩机皮带轮106之间，并且通过惰轮皮带轮偏置元件朝向第二惰轮皮带轮110偏置，从而使第二驱动皮带部分116朝向第二惰轮皮带轮偏转并且使驱动皮带112拉紧。第二惰轮皮带轮110设置在发电机皮带轮102和驱动皮带轮104之间，并且在中心惰轮皮带轮连接器120的偏置元件的作用下使第三驱动皮带部分118朝向第一惰轮皮带轮偏转。
第一惰轮皮带轮108和第二惰轮皮带轮110用于增加驱动皮带112和皮带轮之间的摩擦，并且由此使皮带打滑最小化。惰轮皮带轮通过增加驱动皮带中的张力并增加驱动皮带112相对于发电机皮带轮102、驱动皮带轮104和空调压缩机皮带轮106的包角来增加摩擦。驱动皮带张力通过惰轮皮带轮将第二驱动皮带部分116和第三驱动皮带部分118朝向彼此拉动来增加。由于惰轮皮带轮在偏置元件的作用下将第二驱动皮带部分116和第三驱动皮带部分118朝向彼此拉动，因此驱动皮带的增加部分与皮带轮的圆周接触并且由此增加包角。
当一个皮带轮(例如驱动皮带轮104)被驱动为旋转时，在旋转皮带轮上产生旋转力。该力作为扭矩载荷传递到驱动皮带112，并且驱动皮带112相应地在每个皮带轮之间传递扭矩。惰轮皮带轮提供一种被动装置，该被动装置用于经由通过增加的驱动皮带张力和增加的皮带轮包角增加驱动皮带112和皮带轮之间的摩擦来增加可以通过驱动皮带112传递的最大扭矩载荷。
参照图2，主动前端附件驱动系统122与图1的被动前端附件驱动系统100的不同之处在于，惰轮皮带轮连接器120被连接到第一惰轮皮带轮128的第一惰轮皮带轮连接器124和连接到第二惰轮皮带轮130的第二惰轮皮带轮连接器126替换。
第一惰轮皮带轮连接器124可以设置有第一致动器，例如可操作为将第一惰轮皮带轮128枢转一可变量进入第二驱动皮带部分116的路径中的电动、液压或气动驱动单元，并且第二惰轮皮带轮连接器126可以设置有第二致动器，例如可操作为将第二惰轮皮带轮130枢转一可变量进入第三驱动皮带部分118的路径中的电动、液压或气动驱动单元。在替代设置中，第一和第二惰轮皮带轮中的仅一个可以通过致动器移动以使驱动皮带张紧。通过将惰轮皮带轮朝向驱动皮带112或远离驱动皮带112枢转一可变量，主动前端附件驱动系统122的惰轮皮带轮连接器提供用于改变驱动皮带张力和驱动皮带112的皮带轮包角的装置。因此，主动前端附件驱动系统122提供用于调整驱动皮带112中的张力以便适应机动车辆的瞬时使用要求并使皮带打滑最小化的装置。
参照下面的表1，提供被动前端附件驱动系统100和主动前端附件驱动系统122的典型扭矩限制。表1示出了典型的被动前端附件驱动系统100将基于被动前端附件驱动系统100的限制(例如驱动皮带打滑或驱动皮带损坏)而损失2至6kW的再生充电机会。
表1
从表1中可以看出，主动前端附件驱动系统122具有比被动前端附件驱动系统100更高的扭矩限制。然而，主动控制的引入增加了系统的成本和控制复杂性。
在图3中提供了在新欧洲驾驶循环(NEDC)期间的最佳机器驻留134的图132。图132包括最佳机器驻留134、被动前端附件驱动系统限制136、潜在再生充电机会138、马达扭矩限制140和发电机扭矩限制142。
潜在再生充电机会138示出了发电机扭矩限制142与低于被动前端附件驱动系统限制136的最佳机器驻留134之间的交叉部分。因此，潜在再生充电机会138指示相当大的再生充电机会在本被动前端附件驱动系统100中丢失。
图4示出了扭矩加载的前端附件驱动系统144，其中驱动皮带112从驱动皮带轮152驱动附件部件皮带轮148和发电机皮带轮150。来自从动皮带轮148、150的阻力引起瞬时皮带偏转和拉伸，如图4中的线146所示。
扭矩加载的前端附件驱动系统144的最大扭矩限制受到驱动皮带打滑和驱动皮带拉伸的程度以及操作一个或多个附件部件(例如空调压缩机、动力转向泵和水泵，所有这些都可能通常包含在相同的前端附件驱动环上)的需要的限制。响应于改变发动机转速而使皮带轮(特别是附件部件皮带轮148和发电机皮带轮150)加速或减速的需要可以进一步限制最大扭矩。由于混合动力系统需要在B-ISG和发动机之间传递稳态扭矩以进行扭矩辅助或再生恢复，因此这些问题在发电机被B-ISG中马达发电机替代的情况下放大。
在图4的扭矩加载的前端附件驱动系统144中，围绕驱动皮带轮152的驱动皮带包裹不足以提供克服附件部件皮带轮148和发电机皮带轮150在两者都以最大努力操作时的阻力所需的扭矩。
本发明寻求改进混合动力功能的可用性，而无需引入与过度的皮带张力相关联的损失，并且修改前端附件驱动系统100的已经可控制的元件以便使混合动力功能最大化。
发明内容
根据本发明的第一方面，提供一种根据权利要求1所述的操作机动车辆的附件驱动系统的方法。
柔性驱动元件可以例如包含链条、齿形皮带或V形皮带。在下面描述的设置中，柔性驱动元件包含驱动皮带。
确定柔性驱动元件的状态的步骤可以包含确定柔性驱动元件的年龄，并且基于其年龄来推断柔性驱动元件的状态。随着皮带老化，最大允许的驱动皮带扭矩阈值通常被降低，但在某些情况下，最大允许的柔性驱动元件扭矩阈值可以随着皮带从其新状态“进入”和其摩擦性能增加而在预定周期内递增地增加，并且然后随着柔性驱动元件随年龄劣化而逐渐地减小。在其他应用中，最大允许的柔性驱动元件扭矩阈值可以从一开始或者从预定的年龄逐渐地或逐步地减小，以反映可能的皮带劣化。
该方法可以进一步包含以下步骤：
测量一个或多个柔性驱动元件参数；
基于该柔性驱动元件参数或每个柔性驱动元件参数的测量值来确定柔性驱动元件的状态；以及
根据所确定的柔性驱动元件的状态调整柔性驱动元件的最大扭矩阈值。因此，最大允许的柔性驱动元件扭矩阈值可以随着柔性驱动元件在服务中劣化而降低到安全水平。
该方法可以包含使用算法和查找表中的至少一个，该查找表将给定测量的柔性驱动元件参数与柔性驱动元件的对应状态或相应的柔性驱动元件最大扭矩阈值相关联。
柔性驱动皮带参数可以包含柔性驱动元件打滑、柔性驱动元件拉伸、柔性驱动元件摩擦特性、柔性驱动元件开裂、柔性驱动元件起球、柔性驱动元件磨损、柔性驱动元件磨耗和柔性驱动元件肋分离中的至少一个。
确定驱动皮带上的扭矩需求何时将超过驱动皮带扭矩阈值的步骤可以包含将最近计算的驱动皮带上的最大扭矩载荷与最大扭矩载荷的变化率比较并且通过使用算法和查找表中的至少一个来预测何时接近驱动皮带扭矩阈值。
皮带上的扭矩需求的增加可以由恢复事件引起，其中马达发电机操作为发电机并且将车辆的动能转换成电能，并且由此使车辆减速。
该方法可以进一步包含在恢复事件的时间周期内减少附件部件中的一个或多个的扭矩需求。
该方法可以进一步包含恢复事件一结束就重新配置前端附件驱动系统。因此，即使在恢复期间，最大扭矩需求也保持在驱动皮带载荷阈值以下，但是附件部件仍然可以在最大可能时间内以全效率操作。
如果具有在恢复事件期间减少的扭矩需求的附件部件是空调压缩机，则车辆空调能力将暂时地降低，但是由于恢复事件通常持续时间短并且恢复事件一结束压缩机的全扭矩就将恢复，因此车辆的乘员不太可能感知舱室温度的显著变化。
该方法可以进一步包含通过减小一个或多个附件皮带轮处的扭矩来将扭矩载荷减小到小于驱动皮带扭矩阈值。例如，在附件部件和附件皮带轮之间安装离合器的情况下，可以断开离合器。如果一个或多个附件皮带轮处的扭矩减小与发电机皮带轮处的扭矩增加成比例，则皮带上的最大扭矩载荷将保持恒定。因此，在恒定的驱动轴扭矩下，随着马达发电机扭矩需求增加，可以控制附件驱动系统扭矩需求成比例地减少。
减少附件部件中的一个或多个的扭矩需求的步骤可以包含至少部分地减小附件部件上的载荷。例如，在附件部件是空调压缩机的情况下，可以减小空调输出，或者可以完全关闭空调。
该方法可以进一步包含通过增加驱动皮带张力来增加驱动皮带扭矩阈值。驱动皮带张力可以通过调整附件皮带轮或附件部件相对于发动机的位置来调整(例如，通过使附件部件或附件皮带轮远离发动机枢转以由此使驱动皮带拉紧)。
该方法可以进一步包含通过增加一个或多个附件皮带轮和/或驱动皮带轮的包角来增加驱动皮带扭矩阈值。附件皮带轮的包角可以通过调整接合皮带的惰轮皮带轮的位置来增加。
马达可以用于机动车辆，特别是用于具有再生制动的机动车辆，但是它也可以包含用于驱动诸如压缩机或泵的负载的固定发动机。
根据本发明，提供一种机动车辆的附件驱动系统的操作方法，其中该附件驱动系统包含：
一个或多个附件部件；
机动车辆的马达发电机；
柔性驱动元件，该柔性驱动元件被配置为在一个或多个附件部件和马达发电机之间传递扭矩载荷，其中操作方法包含：
通过在附件驱动系统的寿命内监控柔性驱动元件来确定柔性驱动元件的预期劣化；
基于所确定的柔性驱动元件的预期劣化来确定最大允许的柔性驱动元件扭矩阈值，其中最大允许的柔性驱动元件扭矩阈值在附件驱动系统的寿命内减小以反映柔性驱动元件的预期劣化；
检测柔性驱动元件上的扭矩需求的增加；
确定柔性驱动元件上的扭矩需求何时将超过最大允许的柔性驱动元件扭矩阈值；并且
减少一个或多个附件部件和马达发电机中的至少一个的扭矩需求以使最大允许的柔性驱动元件扭矩阈值不被超过。
根据本发明的一个实施例，其中确定柔性驱动元件上的扭矩需求何时将超过最大允许的柔性驱动元件扭矩阈值包含将最近计算的柔性驱动元件上的最大扭矩载荷与最大扭矩载荷的变化率进行比较并且预测何时接近最大允许的柔性驱动元件扭矩阈值。
根据本发明的一个实施例，其中柔性驱动元件上的扭矩需求的增加由恢复事件引起，并且附件部件中的一个或多个的扭矩需求在恢复事件的时间周期内减少。
根据本发明的一个实施例，其中在恢复事件的时间周期结束时重新配置附件驱动系统。
根据本发明的一个实施例，其中重新配置附件驱动系统包含恢复事件一结束就恢复一个或多个附件部件的扭矩需求。
根据本发明的一个实施例，其中在恢复事件期间，在一个或多个附件部件处的扭矩的减小等于在马达发电机处的扭矩的增加。
根据本发明的一个实施例，其中减少附件部件或马达发电机的扭矩需求包含断开与附件部件或马达发电机相关联的专用离合器。
根据本发明的一个实施例，其中减少附件部件或马达发电机的扭矩需求包含至少部分地减少附件部件或马达发电机上的载荷。
根据本发明的一个实施例，该方法进一步包含通过增加柔性驱动元件的张力来增加最大允许的柔性驱动元件扭矩阈值。
根据本发明的一个实施例，其中柔性驱动元件的张力通过调整接合柔性驱动元件的皮带轮来增加。
根据本发明的一个实施例，该方法进一步包含通过增加附件部件皮带轮、马达发电机皮带轮和驱动皮带轮中的至少一个的包角来增加最大允许的柔性驱动元件扭矩阈值。
根据本发明的一个实施例，其中包角通过调整接合柔性驱动元件的皮带轮的位置来增加。
根据本发明的一个实施例，其中确定柔性驱动元件的状态包含确定柔性驱动元件的年龄，并且基于其年龄来推断柔性驱动元件的状态。
根据本发明的一个实施例，该方法进一步包含：
测量一个或多个柔性驱动元件参数；
基于柔性驱动元件参数或每个柔性驱动元件参数的测量值来确定柔性驱动元件的状态；以及
根据所确定的柔性驱动元件的状态调整最大允许的柔性驱动元件扭矩阈值。
根据本发明的一个实施例，其中柔性驱动皮带参数包含柔性驱动元件拉伸、柔性驱动元件摩擦特性、柔性驱动元件开裂、柔性驱动元件起球、柔性驱动元件磨损和柔性驱动元件肋分离中的至少一个。
为了避免在说明书中不必要的重复劳动和文本的重复，仅关于本发明的一个或多个方面或布置描述了某些特征。然而，应当理解的是，在技术上可行的情况下，关于本发明的任何方面或布置描述的特征也可以与本发明的任何其他方面或布置一起使用，只要所产生的布置在以下权利要求的范围内。
附图说明
为了更好地理解本发明，并且为了更清楚地示出如何实现本发明，现在将通过示例的方式参照附图，其中：
图1是被动前端附件驱动系统的示意图；
图2是主动前端附件驱动系统的示意图；
图3是新欧洲驾驶循环(NEDC)期间最佳机器驻留的图；
图4是扭矩加载的前端附件驱动系统的示意图；
图5是根据本发明的第一布置的扭矩加载的前端附件驱动系统的示意图；
图6是根据本发明的第一布置的减小扭矩加载的前端附件驱动系统的示意图；
图7是根据本发明第一布置的扭矩加载的前端附件驱动系统的另一示意图；
图8是根据本发明第一布置的减小扭矩加载的前端附件驱动系统的另一示意图；
图9是根据本发明的第二布置的扭矩加载的前端附件驱动系统的示意图；以及
图10是根据本公开的第二布置的减小扭矩加载的前端附件驱动系统的示意图。
具体实施方式
参照图5，前端附件驱动系统200包括附件皮带轮202、驱动皮带轮204、发电机皮带轮206、驱动皮带208、一对惰轮皮带轮210和通过驱动皮带208传递的扭矩载荷212。
扭矩载荷212借助于由附件皮带轮202、驱动皮带轮204和发电机皮带轮206施加到驱动皮带208的旋转力通过驱动皮带208传递。如果允许该扭矩载荷212过度增加，则驱动皮带208可能打滑，并且可能被拉伸、磨损或损坏。
例如，扭矩载荷通过测量由前端附件驱动系统200中的每个皮带轮施加到驱动皮带208的扭矩并将每个测量的扭矩加在一起来确定。得到的计算表示通过驱动皮带208传递的扭矩载荷。
为了改进驱动皮带208在皮带轮之间传递扭矩的能力，由附件皮带轮202施加的扭矩被修改。通过管理从附接到例如空调压缩机的附件皮带轮202施加到驱动皮带208的扭矩，前端附件驱动系统200的功能被优化。
特别地，通过附件皮带轮202由空调压缩机施加的扭矩的修改包含将扭矩减小到低于预定最大允许的驱动皮带扭矩阈值，以便适应电池充电或恢复事件。例如，恢复或再充电事件是马达发电机产生电力以供应车辆的电气部件(例如车辆前照灯或挡风玻璃刮水器)的时间周期，或者是在减速期间马达发电机将动能转换成电能以使车辆减速的时间。如果空调压缩机在再充电或恢复事件期间也向皮带施加高扭矩，则皮带上的扭矩载荷可能过度。
由于典型的再生事件可以非常短，根据本发明的布置，由空调压缩机施加到驱动皮带208的扭矩可以减小直到恢复事件结束。供选择地，可以在预定周期内减小施加的扭矩的减少，之后空调压缩机被确定为太严重受损。在恢复事件结束或预定周期结束后，空调压缩机返回操作。
预定允许的驱动皮带扭矩阈值限定在寄生损失被引入前端附件驱动系统200之前可以通过驱动皮带传递的最大扭矩载荷。预定允许的驱动皮带扭矩阈值可以通过实验凭经验地确定或者通过计算理论地确定。
图6示出了由于修改空调压缩机的扭矩而通过驱动皮带208传递的减小的扭矩载荷214。
用于减小由空调压缩机施加到驱动皮带208的扭矩的技术包括使用具有外部可变排量的压缩机或使用具有外部可变吸入压力设定点的压缩机。
参照图7，前端附件驱动系统216包括附件皮带轮220、驱动皮带轮222、发电机皮带轮224、驱动皮带226，一对惰轮皮带轮228和通过驱动皮带226传递的扭矩载荷218。
图7和图8示出了发动机正在快速加速的情况(例如，在硬第一挡加速期间或在闭合踏板降挡结束时，为了更好的发动机制动)。在这种情况下，通过驱动皮带226传递的总和力通过加速发电机皮带轮224和附件皮带轮220或每个附件皮带轮220的旋转惯性的需要来增加。
在图7的前端附件驱动系统216中，通过驱动皮带226传递的扭矩载荷218被管理以适应发动机转速的快速变化。也就是说，空调压缩机的附件皮带轮220的扭矩载荷和/或马达发电机的发电机皮带轮224的扭矩载荷仅在系统受到强发动机转速瞬变时受到限制。通过在发动机加速期间管理由附件皮带轮220和/或发电机皮带轮224施加到驱动皮带226的扭矩，当驱动皮带226被迫改变速度时，通过驱动皮带226传递的惯性扭矩被抵消，这导致减少皮带打滑的风险。这种布置使再生扭矩可能性在发动机转速变化期间减小或增加，同时确保在发动机转速变化期间使可用于操作前端附件驱动系统216的扭矩最大化。
在图8的前端附件驱动系统216中，通过打开离合器(例如电磁空调压缩机离合器)来减轻附件皮带轮220的惯性和静态扭矩，从而将空调压缩机与附件皮带轮220断开。由于空调压缩机与前端附件驱动系统216断开，减小的扭矩载荷230通过驱动皮带226传递，从而减少了前端附件驱动系统216的寄生损失。
通过主动控制马达发电机和空调压缩机来进一步管理惯性扭矩。通过主动地控制施加到驱动皮带226的扭矩，可以在再生事件期间暂时地减小发电机皮带轮224的再生拖曳扭矩，并且在空调压缩机的使用期间暂时地减小由附件皮带轮220施加的惯性扭矩，从而确保通过驱动皮带226传递的扭矩载荷218保持在最大允许的驱动皮带扭矩阈值的极限内。
控制马达发电机和空调压缩机的技术涉及通过皮带轮实时测量施加到驱动皮带226的扭矩，并且增加或减少马达发电机和/或空调压缩机的扭矩需求以确保通过驱动皮带226传递的总扭矩不超过最大允许的驱动皮带扭矩阈值。
另一驱动皮带226扭矩管理技术涉及利用从马达发电机供应的能量以便补偿由例如空调压缩机施加到驱动皮带226的惯性扭矩。这种技术通过从马达发电机向前端附件驱动系统216增加能量来为空调压缩机提供从驱动皮带226汲取所需扭矩的装置。在该技术中，施加到前端附件驱动系统216的惯性扭矩通过发电机皮带轮224由马达发电机补偿，使得驱动皮带226留下以仅应对通过附件皮带轮220由空调压缩机施加的静态扭矩载荷。
图9和10示出了通过附件皮带轮220施加到驱动皮带226的惯性扭矩被通过发电机皮带轮224添加到前端附件驱动系统216的能量抵消的情况。具体地，相比于图9的扭矩载荷232，图10的扭矩载荷234显著地减小。
延长前端附件驱动系统216的驱动皮带226的使用寿命的另一技术包括在前端附件驱动系统216的寿命期间监控驱动皮带226的状态并相应地主动管理最大允许的驱动皮带扭矩阈值。在这种技术中，最大允许的驱动皮带扭矩阈值将在前端附件驱动系统216的寿命期间减小，以反映皮带的预期劣化。驱动皮带劣化基于驱动皮带性能特征来确定，该性能特征包括例如驱动皮带打滑、驱动皮带拉伸、摩擦特性、驱动皮带开裂、驱动皮带起球、驱动皮带磨损、驱动皮带年龄和驱动皮带肋分离。
通过在前端附件驱动系统216的寿命期间以预定频率测量一个或多个驱动皮带性能特征中的每个来确定最大允许的驱动皮带扭矩阈值。测量的驱动皮带性能特性随后用于计算驱动皮带状态值。将驱动皮带状态值与驱动皮带状态值对驱动皮带调整值的数据库进行比较，并选择应该调整最大允许的驱动皮带扭矩阈值的量作为最接近计算的驱动皮带状态值的驱动皮带调整值。
主动地管理最大允许的驱动皮带扭矩阈值的技术可以与上面讨论的关于管理施加到驱动皮带226的扭矩载荷的任何技术结合使用。通过组合这些技术，所需的干预水平(例如，通过释放离合器来断开附件压缩机)将在车辆的使用寿命期间随着驱动皮带226通过正常老化劣化而增加。
在上面讨论的所有技术中，附件部件扭矩(即空调压缩机)或马达发电机扭矩的控制可以通过机动车辆中的电子控制模块(例如动力传动系控制模块(PCM))来实现。PCM估算每个皮带轮处施加到驱动皮带上的扭矩，并计算最大允许的驱动皮带扭矩载荷。连接到前端附件驱动系统的部件的扭矩需求相应地调整，以便避免在驱动皮带上的任何皮带轮处的驱动皮带打滑。在特定实施例中，仅一个或多个选择的从动部件将受到扭矩限制。例如，在典型的前端附件驱动系统中，驱动皮带轮可以始终优先，以使始终允许驱动皮带轮处的总所需扭矩，同时将计算的限制应用于其他部件。
预定限制皮带轮和相应的部件基于例如其余部件的操作的临界性或混合动力操作、使用马达发电机产生、空调压缩机操作和动力辅助转向操作之间的平衡来确定。此外，当限制由可以控制的其他部件施加的扭矩时，应该考虑从无法控制或对车辆安全运行至关重要的部件(例如，液压动力转向器或水泵)的附件皮带轮施加到前端附件驱动系统的扭矩载荷。
尽管上面的实施例关于被动前端附件驱动系统进行描述，但是本发明也可以应用于主动前端附件驱动系统，以便扩展被动状态的操作范围，或者减小在活动状态下所需的最大驱动皮带张力。
本领域技术人员应当理解的是，尽管已经通过示例的方式参照一个或多个示例性示例描述了本发明，但是本发明不限于所公开的示例，并且在不脱离由所附权利要求限定的本发明的范围的情况下，可以构造替代示例。

Claims (15)

1.一种机动车辆的附件驱动系统的操作方法，其中所述附件驱动系统包含：
一个或多个附件部件；
所述机动车辆的马达发电机；
柔性驱动元件，所述柔性驱动元件被配置为在所述一个或多个附件部件和所述马达发电机之间传递扭矩载荷，其中所述操作方法包含：
确定所述柔性驱动元件的状态；
基于所确定的所述柔性驱动元件的状态来确定最大允许的柔性驱动元件扭矩阈值；
检测所述柔性驱动元件上的扭矩需求的增加；
确定所述柔性驱动元件上的所述扭矩需求何时将超过所述柔性驱动元件扭矩阈值；并且
减少所述一个或多个附件部件和所述马达发电机中的至少一个的所述扭矩需求以使所述柔性驱动元件扭矩阈值不被超过。
2.根据权利要求1所述的机动车辆的附件驱动系统的操作方法，其中确定所述柔性驱动元件上的所述扭矩需求何时将超过所述柔性驱动元件扭矩阈值的步骤包含将最近计算的所述柔性驱动元件上的最大扭矩载荷与最大扭矩载荷的变化率进行比较并且预测何时接近所述柔性驱动元件扭矩阈值。
3.根据前述权利要求中任一项所述的机动车辆的附件驱动系统的操作方法，其中所述柔性驱动元件上的所述扭矩需求的增加由恢复事件引起，并且所述附件部件中的一个或多个的所述扭矩需求在所述恢复事件的时间周期内减少。
4.根据权利要求3所述的机动车辆的附件驱动系统的操作方法，其中在所述恢复事件的所述时间周期结束时重新配置所述附件驱动系统。
5.根据权利要求4所述的机动车辆的附件驱动系统的操作方法，其中重新配置所述附件驱动系统包含所述恢复事件一结束就恢复所述一个或多个附件部件的所述扭矩需求。
6.根据权利要求3至5中任一项所述的机动车辆的附件驱动系统的操作方法，其中在所述恢复事件期间，在所述一个或多个附件部件处的扭矩的减小等于在所述马达发电机处的扭矩的增加。
7.根据前述权利要求中任一项所述的机动车辆的附件驱动系统的操作方法，其中减少附件部件或所述马达发电机的所述扭矩需求的步骤包含断开与所述附件部件或所述马达发电机相关联的专用离合器。
8.根据前述权利要求中任一项所述的机动车辆的附件驱动系统的操作方法，其中减少附件部件或所述马达发电机的所述扭矩需求的步骤包含至少部分地减少所述附件部件或所述马达发电机上的载荷。
9.根据前述权利要求中任一项所述的机动车辆的附件驱动系统的操作方法，进一步包含通过增加所述柔性驱动元件的张力来增加所述柔性驱动元件扭矩阈值的步骤。
10.根据权利要求9所述的机动车辆的附件驱动系统的操作方法，其中所述柔性驱动元件的所述张力通过调整接合所述柔性驱动元件的皮带轮来增加。
11.根据前述权利要求中任一项所述的机动车辆的附件驱动系统的操作方法，进一步包含通过增加附件部件皮带轮、马达发电机皮带轮和驱动皮带轮中的至少一个的包角来增加所述柔性驱动元件扭矩阈值的步骤。
12.根据权利要求11所述的机动车辆的附件驱动系统的操作方法，其中所述包角通过调整接合所述柔性驱动元件的皮带轮的位置来增加。
13.根据前述权利要求中任一项所述的机动车辆的附件驱动系统的操作方法，其中确定所述柔性驱动元件的所述状态的步骤包含确定所述柔性驱动元件的年龄，并且基于其年龄来推断所述柔性驱动元件的状态。
14.根据前述权利要求中任一项所述的机动车辆的附件驱动系统的操作方法，进一步包含以下步骤：
测量一个或多个柔性驱动元件参数；
基于所述柔性驱动元件参数或每个柔性驱动元件参数的测量值来确定所述柔性驱动元件的所述状态；以及
根据所确定的所述柔性驱动元件的状态调整所述柔性驱动元件扭矩阈值。
15.根据权利要求14所述的机动车辆的附件驱动系统的操作方法，其中所述柔性驱动皮带参数包含柔性驱动元件拉伸、柔性驱动元件摩擦特性、柔性驱动元件开裂、柔性驱动元件起球、柔性驱动元件磨损和柔性驱动元件肋分离中的至少一个。
CN201811492564.6A 2017-12-15 2018-12-07 附件驱动系统 Pending CN110027399A (zh)

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