CN1971100A - 用于电动可变混合变速器的多路复用控制系统和方法 - Google Patents

用于电动可变混合变速器的多路复用控制系统和方法 Download PDF

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CN1971100A
CN1971100A CNA2006101493073A CN200610149307A CN1971100A CN 1971100 A CN1971100 A CN 1971100A CN A2006101493073 A CNA2006101493073 A CN A2006101493073A CN 200610149307 A CN200610149307 A CN 200610149307A CN 1971100 A CN1971100 A CN 1971100A
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valve
pressure
jaw clutch
control system
selectively
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CN1971100B (zh
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C·F·龙
M·D·福斯特
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Motors Liquidation Co
GM Global Technology Operations LLC
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Motors Liquidation Co
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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
    • B60K6/36—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
    • 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
    • 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
    • B60K6/36—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
    • 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
    • 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
    • B60K6/40—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 assembly or relative disposition of components
    • 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
    • B60K6/44—Series-parallel type
    • B60K6/445—Differential gearing distribution 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
    • B60K6/50—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
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    • 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
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    • F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
    • F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
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    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
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    • F16H—GEARING
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
    • F16H37/10—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing at both ends of intermediate shafts
    • F16H2037/105—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing at both ends of intermediate shafts characterised by number of modes or ranges, e.g. for compound gearing
    • F16H2037/106—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing at both ends of intermediate shafts characterised by number of modes or ranges, e.g. for compound gearing with switching means to provide two variator modes or ranges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/68—Inputs being a function of gearing status
    • F16H2059/683—Sensing pressure in control systems or in fluid controlled devices, e.g. by pressure sensors
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Transmission Device (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

动力系具有电动可变混合变速器，该变速器具有电液式控制系统、若干电功率单元、和若干扭矩传输机构，这些扭矩传输机构由电液式控制系统有选择地接合，以便提供4个前进档速度范围、空档状态、电动低速和高速模式、电动可变低和高速模式。另外，电动可变混合变速器提供并联倒档模式和串联倒档模式。本发明提供改进的电液式控制系统，该控制系统具有用于电动可变混合变速器的多路复用电动变速器档位段选择(ETRS)和倒档牙嵌离合器。本发明的多路复用控制系统允许仅使用一个电磁阀有效地控制ETRS系统和倒档牙嵌离合器系统。

Description

用于电动可变混合变速器的多路复用控制系统和方法
技术领域
[0001]本发明涉及用于电动可变混合变速器的电液式控制系统。
背景技术
[0002]多速动力变速器，特别是使用行星齿轮装置的变速器，需要液压系统，以便提供离合器、制动器或者扭矩传输机构按照希望的顺序表受控制的接合或者分离，扭矩传输机构用于在行星齿轮装置内建立比值。
[0003]这些控制系统从基本纯液压控制系统发展而来，其中液压装置向电液式控制系统产生所有的控制信号，其中电控单元产生多个控制信号。电控单元向电磁阀发射电控信号，该电磁阀接着向变速器控制内的各种操作阀发出受控制的液压信号。
[0004]在许多早期的纯液压控制系统和第一代电液式控制系统中，动力变速器使用多个飞轮或者单向装置，这些装置在变速器的升档和降档过程中能使变速器的档位或者比值切换更加平稳。这解除了液压控制系统在即将接合的扭矩传输机构和即将分离的扭矩传输机构之间提供重叠控制。如果这种重叠过多，驾驶员会感觉到传动系的发抖，如果这种重叠太少，驾驶员会经历发动机骤燃或者滑行的感觉。当施加在飞轮装置上的扭矩从飞轮状态颠倒为传输状态时，飞轮装置通过快速接合防止这种感觉。
[0005]电液式装置的出现导致已知的离合器到离合器换档装置，从而降低变速器和控制的复杂性。通常认识到这些电液式控制机构能降低成本，减少控制机构所需的空间。
[0006]另外，随着更多精密控制机构的出现，动力变速器已经从两速或者三速变速器发展到五速或者六速变速器。在至少一个目前可获得的六速变速器中，只使用了5个摩擦装置，以便提供6个前进档速度、空档状态和倒档速度。这种齿轮装置出现在1978年1月31日公开的由Polak发明的美国专利4,070,927中。Polak专利中出现的行星齿轮组的使用导致多个电液式控制机构，例如1997年2月11日公开的由Long等人发明的美国专利5,601,506中。换档涉及的(即将接合或即将分离的)扭矩传输机构的扭矩能力通过电致动的电磁阀、压力调节阀或缓冲阀(trim valve)的组合可方便地控制，例如1999年6月15日公开由Long等人发明的美国专利5,911,244所公开的内容，该专利的专利权人与本申请的专利权人相同，其全部内容并入此文作为参考。在典型的系统中，电磁阀在受控制的占空因数(duty cycly)下由脉宽调制(PWM)致动，以便形成压力调节阀或缓冲阀的导向压力(pilotpressure)，其接着与电磁占空因数成比例地向扭矩传输机构提供流体压力。
[0007]另外，已经提出电动可变混合变速器，以便改善燃料经济性，同时降低废气排放。电动可变混合变速器将输入轴和输出轴之间的机械功率通过差速齿轮装置分流为机械功率路径和电功率路径。机械功率路径包括离合器和另外的齿轮。电功率路径可使用两个电功率单元、或者电动机/发电机组件，该组件中的每一个可作为电动机或者发电机工作。在具有电存储系统，例如电池的情况下，电动可变混合变速器可并入混合电动车辆的驱动系统。这种电动可变混合变速器的操作已经在2003年4月22日公开的由Holmes等人发明的美国专利6,551,208中描述，因而其全文并入作为参考。
[0008]混合驱动系统使用电功率源和发动机功率源。电功率源通过电控单元连接电动机/发电机单元，电控单元按照需求分配电功率。电控单元还连接发动机和车辆，以便确定工作特性或者工作需求，以致电动机/发电机组件能适当地作为电动机或发电机工作。当其作为发电机工作时，电动机/发电机组件接收来自车辆或者发动机的功率，将该功率存储在电池中，或者提供该功率以便操作另一个电气装置或者另一个电动机/发电机组件。
[0009]主要有两种混合车辆结构——并联混合和串联混合。具有并联结构的混合电动车辆在混合驱动系统和车辆的驱动轮之间具有直接的机械连接。相反，具有串联结构的混合电动车辆使用安装在发动机上的发电机产生用于电池和/或电动机的电力。串联混合电动车辆在混合驱动系统和驱动轮之间没有机械连接。通过使用离合机构，例如牙嵌离合器，一些混合驱动系统可有选择地用于并联或者串联结构。
[0010]另外，现代控制系统允许“线控换档”的档位段变换能力。这种技术的另一个名称是电动变速器档位段选择，或者ETRS。ETRS系统免除了机械致动变速器中存在的许多机械互连件，因而，简化变速器结构。电动可变混合变速器提供的额外功能要求创造性的控制结构方法，以便降低成本、复杂性和重量，同时增加可靠性。
发明内容
[0011]本发明提供改进的电液式控制系统和方法，该控制系统和方法具有用于电动可变混合变速器的多路复用(一个源控制多个功能)的电动变速器档位段选择(ETRS)和倒档牙嵌离合器系统。本发明的多路复用控制系统允许仅使用1个电磁阀有效控制ETRS系统和倒档牙嵌离合器系统。
[0012]提供了一种用于电动可变混合变速器的控制系统，该控制系统具有多路复用阀和电磁阀，该电磁阀用于向多路复用阀有选择地提供流体压力。还提供了一种与多路复用阀有选择地流体连通的电动变速器档位段选择阀。牙嵌离合器继动阀设置为与多路复用阀有选择地流体连通。
[0013]多路复用阀可以是升压阀，多路复用阀用于有选择地分配从电磁阀到电动变速器档位段选择阀或者牙嵌离合器继动阀的流体压力。弹簧接合的牙嵌离合器设置为与牙嵌离合器继动阀有选择地流体连通，用于当牙嵌离合器分离时提供串联电动可变传输工作模式。牙嵌离合器通过来自牙嵌离合器继动阀的流体压力有选择地分离。设置驻车棘爪机构，其中电动变速器档位段选择阀用于接合和分离驻车棘爪机构。驻车棘爪机构可通过伺服机构接合和分离，伺服机构用于有选择地接收来自电动变速器档位段选择阀的加压流体。
[0014]还提供了一种用于控制电动变速器档位段选择阀和牙嵌离合器继动阀的方法。该方法包括提供电磁阀，该电磁阀用于向电动变速器档位段选择阀和牙嵌离合器继动阀提供控制压力。多路复用阀也设置为与电动变速器档位段选择阀和牙嵌离合器继动阀有选择地流体连通，多路复用阀用于有选择地引导至电动变速器档位段选择阀和牙嵌离合器继动阀的控制压力。方法还包括控制多路复用阀，以便当多路复用阀处于第一位置时引导至电动变速器档位段选择阀的控制压力，当多路复用阀处于第二位置时引导至牙嵌离合器继动阀的控制压力。
[0015]结合附图，根据下面对实施本发明的最佳方式的详细描述，本发明的上述特征和优势以及其它特征和优势将变得显而易见。
附图说明
[0016]图1是与本发明一起使用的电动可变混合车辆动力系的示意图；
[0017]图2a和2b结合起来表示描述与图1的动力系一起使用的电液式控制系统的示意图，描述了处于电功率接通(ON)、驻车/空档工作模式的控制系统。
[0018]图3a和3b结合起来表示描述与图1的动力系一起使用的电液式控制系统的示意图，描述了处于电功率接通(ON)、串联电动可变传输工作模式的控制系统。
具体实施方式
[0019]参考附图，其中所有附图中相同的附图标记表示相同或相应的部件，图1所示的动力系10具有发动机12、电动可变混合变速器14、和最终传动16。
[0020]发动机12是传统的内燃机。电动可变混合变速器14包括行星齿轮装置，该行星齿轮装置具有输入轴18、输出轴20、3个行星齿轮组22、24和26，4个扭矩传输机构C1、C2、C3和C4、以及电液式控制系统28。扭矩传输机构C2和C4是流体操纵的旋转离合器型装置，同时扭矩传输机构C1和C3是流体操纵的静止离合器或者制动装置。电液式控制系统28控制扭矩传输机构的选择性接合和分离，如图2a和2b所示。
[0021]电动可变混合变速器14还包括一对电功率单元或电动机/发电机30或(A)和32或(B)，它们由电控单元34控制。电控单元34通过3个导电体36、37和38连接电功率单元30，通过3个导电体40、41和42连接电功率单元32。电控单元34还与电存储装置44电连接，电存储装置44通过一对导电体46和48连接电控单元34。电存储装置44通常为一个或多个电池。
[0022]电功率单元30和32优选为电动机/发电机单元，其能作为功率供应者或者功率产生者工作。当作为电动机或者功率供应者工作时，电功率单元30和32将向电动可变混合变速器14提供功率。当作为产生者工作时，电功率单元30和32之一将从变速器14提取电功率，电控单元34或者将功率分配给电存储装置44，或者将功率分配给当时作为电动机工作的功率单元30和32中的另一个。
[0023]电控单元34接收来自车辆和变速器14的多个电信号，例如说出来的少数几个：发动机速度、节气门需求、车辆速度。这些电信号用作可编程数字计算机的输入信号，该计算机并入电控单元34内。接着计算机有效地分配所需的电功率，以便允许电动可变混合变速器14以受控制的方式工作。
[0024]如图1所示，行星齿轮装置在输入轴18和输出轴20之间提供4个前进档速度比或者范围。在第一前进档范围中，扭矩传输机构C1和C4接合。在第二前进档范围中，扭矩传输机构C1和C2接合。在第三前进档范围中，扭矩传输机构C2和C4接合。在第四前进档范围中，扭矩传输机构C2和C3接合。当扭矩传输机构C1、C2、C3和C4分离时，齿轮装置还提供空档状态。当扭矩传输机构C1接合时，提供电动可变低工作模式，当扭矩传输机构C2接合时，提供电动可变高工作模式。
[0025]动力系10可在纯电动模式下工作。通过接合C1扭矩传输机构，促成发动机熄火、电动低速工作模式。如果电液式控制系统28发生故障或者电功率中止时，动力系10具有在电动可变混合变速器14内的2个速度范围的驾车回家(drive-home)能力。在电功率中止的驾车回家模式中，电液式控制系统28默认为电动可变低工作模式，其中扭矩传输机构C1接合，以及电动可变高工作模式，其中扭矩传输机构C2接合。电动可变混合变速器14能在并联和串联倒档工作模式下工作。在并联倒档模式中，电动可变混合变速器14在电动可变低工作模式下工作，其中扭矩传输机构C1接合。可选择地，在串联倒档模式中，中扭矩传输机构C1和C4接合，同时牙嵌离合器分离。
[0026]电液式控制系统28包括电控单元(ECU)和液压控制单元(HYD)。ECU并入常规的数字计算机，该计算机可编程，以便向电液式控制系统28的液压部分提供电信号，从而建立扭矩传输机构C1、C2、C3和C4的接合和分离。图2a和2b详细显示了电液式控制系统28。如图2a和2b所示，电液式控制系统28的液压部分包括液压泵50，例如固定排量泵，它从贮存器52中抽出流体，将其输送到主通道54。可选择地，电控液压泵56设置为在电动模式下工作。止回阀58用于取决于正在工作的泵50或56，有选择地将加压流体分配到主通道54。泄压阀60设置为与液压泵50的出口流体连通，以便预防主通道54的过量加压。同样，泄压阀62设置为与电控液压泵56的出口流体连通，以便预防主通道54的过量加压。如果主通道54内显示其自身存在过量加压情况，泄压阀60和64会排流。主通道54与电动变速器档位段选择(ETRS)阀68、牙嵌离合器继动阀68、执行器供给调节阀70、阻尼(damper)锁定离合器缓冲阀72、缓冲阀74、缓冲阀76、和缓冲阀78流体连通。
[0027]ETRS阀66用于通过通道82有选择地将来自主通道54的加压流体连通到伺服机构80。当ETRS阀66位于压力设置位置时，主通道54内的加压流体通过通道82引入伺服机构80。活塞86通过连接件90连接驻车棘爪机构88，当伺服机构80内的流体压力足够克服弹簧84的偏置时，活塞86在伺服机构80内移动，因而分离驻车棘爪机构88，如图3a所示。当ETRS阀66位于弹簧设置位置时，如图2a所示，脊92阻止了来自主通道54的加压流体的流动，通道82将通过通道64排流。弹簧84用于偏置活塞86和连接件90，以便实现驻车棘爪机构88的接合。
[0028]线性调节阀(line regulator valve)65在主通道54内建立压力，当该压力满足时，流体通过通道94输送，该通道94随后被分流为通道94’和通道94”。通道94’将加压流体输送到冷却器调节阀96。当从冷却器调节阀96流出后，流体进入冷却器98和/或冷却器旁通阀100。当经过冷却器98的流体通道被封锁时，冷却器旁通阀100用于提供流体流动。来自冷却器98和/或冷却器旁通阀100的流体接着分配到电动可变混合变速器14的润滑系102。孔104和孔106设置用于流体流量控制的目的。
[0029]牙嵌离合器继动阀68用于有选择地将来自主通道54的加压流体提供给牙嵌离合器108。牙嵌离合器108是弹簧接合离合器，当施加流体压力时牙嵌离合器108分离。电动可变混合变速器14使用牙嵌离合器108在并联倒档模式和串联倒档模式之间有选择地切换，在并联倒档模式中牙嵌离合器108接合，在串联倒档模式中牙嵌离合器108分离。当牙嵌离合器继动阀68处于弹簧设置位置时，如图2a所示，牙嵌离合器108内的加压流体排流，允许牙嵌离合器108接合。可选择地，当牙嵌离合器108处于压力设置位置时，如图3a所示，牙嵌离合器108响应于主通道54内的加压流体而分离。
[0030]执行器供给调节阀70将主通道54内的压力降低为通道110内的控制压力。通道110内的流体连通若干电磁阀112、114、116、118、120、122、124、和126。电磁阀124和126是通/断型电磁阀，同时电磁阀112、114、116、118、120、和122是可变压力型电磁阀。电磁阀116、118和122是常高或常开型电磁阀，同时电磁阀112、114、120、124、1和26是常低或常闭型电磁阀。常开电磁阀在没有电信号的情况下分配加压流体或输出压力。
[0031]电磁阀112用于提供通道128中的输出压力，其控制阻尼锁定离合器缓冲阀72上的偏置压力或者控制压力。阻尼锁定离合器缓冲阀72用于当转到电动工作模式或者从电动工作模式转出时，有选择地接合阻尼锁定离合器134。
[0032]电磁阀114用于提供通道132中的输出压力，其控制缓冲阀74上的偏置压力。电磁阀116用于提供通道134中的输出压力，其控制缓冲阀76上的压力偏置。电磁阀118用于提供通道136中的输出压力，其控制缓冲阀78上的压力偏置。可选择地，通道136中的输出压力控制升压阀或多路复用阀138上的压力偏置，通道136中的输出压力还连通逻辑阀140。当输出通道136加压时，升压阀138偏置到压力设置位置，如图3b所示。可选择地，当输出通道136排流时，升压阀138将移动到弹簧设置位置，如图2b所示。缓冲阀72、74、76和78被它们对应通道128、132、134和136中的流体压力有选择地偏置到第二位置或压力设置位置。当通道128、132、134和136排流时，对应的缓冲阀72、74、76和78移动到第一位置或弹簧设置位置。另外，缓冲阀72、74、76和78具有缓冲或压力调节位置。
[0033]电磁阀120用于有选择地提供通道147中的输出压力，该输出压力将加压流体连通到升压阀138。电磁阀122用于提供通道148中的输出压力，该输出压力控制线性调节阀65的压力偏置。通过调节通道148中的流体压力，电磁阀122用于改变线性调节阀65的工作特性，因而调节主通道54内的压力值，以便实现基于扭矩的压力控制。
[0034]电磁阀124用于提供通道142中的输出压力，该输出压力控制逻辑阀140上的压力偏置。另外，通道142内的输出压力将加压流体连通到ETRS阀66，通道142内的输出压力用于通过接合脊141而有选择地将ETRS阀66偏置到压力设置位置。逻辑阀140具有差动区域143，该差动区域143用于当扭矩传输机构C2接合且至电磁阀124的电功率中断时将逻辑阀140锁止在压力设置位置。通道136内的加压流体为差动区域143提供足以将逻辑阀140偏置到压力设置位置的力。电磁阀126用于提供通道140中的输出压力，该输出压力控制逻辑阀146上的压力偏置。通道140内的输出压力还连通到缓冲阀74和缓冲阀76。逻辑阀140和146每个都具有第一位置或弹簧设置位置和第二位置或压力设置位置。
[0035]逻辑阀140和146多路复用缓冲阀74、76和78，以便提供到4个扭矩传输机构C1、C2、C3和C4的控制。逻辑阀140有选择地连通加压流体，以便控制扭矩传输机构C1和C2的接合。但是逻辑阀146有选择地连通加压流体，以便控制扭矩传输机构C3和C4的接合。多路缓冲阀的构造还提供流体流量的控制，以便实现冷却电动机/发电机A30和电动机/发电机B32。
[0036]缓冲阀74通过输出通道150有选择地将加压流体连通到逻辑阀146。出口通道150通过流量控制孔153将加压流体连通到通道151。通道151用于提供加压流体，以便将ETRS阀66偏置到压力设置位置。缓冲阀76通过出口通道152将加压流体连通到两个逻辑阀140和146。通道155有选择地流体连通缓冲阀74和76。通道155用于当缓冲阀74处于弹簧设置位置时排流通道150。当缓冲阀76处于弹簧设置位置时，通道155排流通道152。缓冲阀78的出口通道154有选择地将加压流体连通到逻辑阀140。另外，缓冲阀78通过出口通道156有选择的将加压流体连通到升压阀138。逻辑阀140和146通过通道158、160和162有选择地彼此流体连通。通道164设置在逻辑阀146内部，用于当逻辑阀146处于弹簧设置位置时排流通道158内的流体。可选择地，当逻辑阀146处于压力设置位置时，通道164用于排流通道166。通道166与逻辑阀146和缓冲阀74、76流体连通。另外，通道166通过一系列流量限制孔168连通通道110。
[0037]回流通道170与执行器供给调节阀70、阻尼锁定离合器缓冲阀72、缓冲阀78、逻辑阀140和逻辑阀146流体连通。通道110内的执行器供给流体压力通过一系列流量限制孔172将流体排出到回流通道170。回流通道170内的流体压力通过排流回流泄压阀173维持在大约每平方英寸2磅(psi)的数值，以便防止空气进入电液式控制系统28。
[0038]排流通道174与阻尼锁定离合器缓冲阀72、缓冲阀74、76和78、连通。反馈通道176用于当阻尼锁定离合器缓冲阀处于调节或者缓冲位置时提供力的平衡。同样，反馈通道178用于当缓冲阀74处于缓冲位置时提供力的平衡。反馈通道180用于当缓冲阀76处于缓冲位置时提供力的平衡。反馈通道182用于当缓冲阀78处于缓冲位置且升压阀138处于弹簧设置位置时提供力的平衡。可选择地，当升压阀138处于压力设置位置时，反馈通道182通过通道205排流。
[0039]通道94”通过一系列流量限制孔185将流体连通到通道184。通过加压通道184，电动机/发电机A30提供有被测数量的流体，以便冷却。设置单向止回阀188，以致防止通道184内的加压流体进入通道190。弹簧复位止回球187用于当通道189加压时为电动机/发电机A30提供额外的流体流量。通道94’通过一系列流量限制孔194将流体连通到通道192。通过加压通道192，电动机/发电机B 32提供有被测数量的冷去流体。设置单向止回阀198，以致防止通道192内的加压流体进入通道190。弹簧复位止回球197用于当通道199加压时为电动机/发电机B 32提供额外的流体流量。
[0040]设置4个压力敏感开关或压力开关PS1、PS2、PS3和PS4，用于检测缓冲阀74、76和78以及逻辑阀140和146的位置。监视上述阀门和检测阀门状态的任何变化或者没有变化的能力是非常重要的，以便提供电动可变混合变速器14的连续可靠工作。
[0041]电液式控制系统28通过多路复用4个压力开关PS1、PS2、PS3和PS4能检测缓冲阀74、76和78以及逻辑阀140和146的状态变化。压力开关PS1、PS2、PS3和PS4布置为分别与逻辑阀140和缓冲阀76、78、74有选择地流体连通。传统地，每个阀门对应一个开关，5个压力开关已用于确定阀门状态变化。
[0042]通过使用压力开关PS1独立检测，实现检测逻辑阀140的状态变化或者没有变化。当逻辑阀140处于弹簧设置位置时，压力开关PS1将排流到回流通道170。当逻辑阀140移动到压力设置位置时，脊202将阻止压力开关PS1排流到通道170。相反，通道110通过孔204将加压流体连通到压力开关PS1。通过使用压力开关PS3独立检测，实现检测缓冲阀78的状态变化或者没有变化。当缓冲阀78处于弹簧设置位置时，通道110将加压流体连通到压力开关PS1。当缓冲阀78移动到压力设置位置时，脊202将封锁通道110，因而允许压力开关PS3通过通道205排流。
[0043]通过多路复用压力开关PS2和PS4，实现检测逻辑阀146和缓冲阀76、74的状态变化或者没有变化。为了实现该目的，通道166布置为与缓冲阀74、76和逻辑阀146流体连通。另外，通道144布置为与缓冲阀74、76和逻辑阀146流体连通。通道166和144基于逻辑阀146的位置有选择地加压。当逻辑阀146处于弹簧设置位置时，通道166通过孔168加压来自通道110的流体。可选择地，当逻辑阀146处于压力设置位置时，逻辑阀146内的通道164排流通道166内的流体。当电磁阀126通电时，逻辑阀146移动到压力设置位置，通道144被加压。可选择地，当电磁阀126断电时，逻辑阀146将移动到弹簧设置位置，通道144将排流。
[0044]多路复用压力开关装置在通道166和144之间提供相反的加压状态。例如，如果逻辑阀146处于压力设置位置时，通道144将加压，通道166将排流。可选择地，如果逻辑阀146处于弹簧设置位置时，通道166将加压，通道144将排流。该现象可通过压力开关PS2和PS4的逻辑状态变化指示，该逻辑状态变化与它们对应缓冲阀76和74的位置无关。
[0045]升压阀138在本发明中作为多路复用阀工作。电磁阀120有选择地加压通道147，通道147与升压阀138流体连通。升压阀用于有选择地将加压流体引导到通道204和通道206之一。通道204用于将加压流体连通到ETRS阀66的弹簧套208。通道206用于连通加压流体，以便将牙嵌离合器继动阀68偏置到压力设置位置。当处于弹簧设置位置时，升压阀138将通道147内的加压流体引导到通道204，使其能控制ETRS阀66。当处于压力设置位置时，升压阀138将通道147内的加压流体引导到通道206，使其能控制牙嵌离合器继动阀68。
[00461当要求如图2a和2b所示的驻车/空档情形时，电磁阀120将通过通道147加压通道204，因而加压ETRS阀66的弹簧套208。弹簧套208内的加压流体将打开ETRS阀，将它移动到弹簧设置位置，如图2a所示。当ETRS阀66处于弹簧设置位置时，主通道54内的加压流体到通道100的流动被脊92阻止。通道82将通过通道64排流，允许弹簧84偏置伺服机构80的活塞86。当伺服机构80处于弹簧偏置位置时，驻车棘爪机构88被连接件90接合。
[0047]当希望驻车棘爪机构106分离时，通道204内的流体压力通过电磁阀120排流。ETRS阀66以两种方式之一放置在压力设置位置。缓冲阀74通过经通道150加压通道151有选择地将ETRS阀66偏置到压力设置位置。缓冲阀74必须位于缓冲或压力设置位置，以便控制ETRS阀66。另外，电磁阀124有选择地加压通道142，导致流体压力作用在脊141上形成的差动区域上。当通道151和/或通道142内的压力为足够大的数值以致能克服ETRS阀66的弹簧偏置时，ETRS阀66将移动到压力设置位置，如图3a所示。ETRS阀66被主通道54内的加压流体保持锁定在压力设置位置，直到通过通道204增加弹簧套208内的压力而打开ETRS阀66。主通道54内的加压流体加压通道82，因而抵抗弹簧84的力偏置伺服机构80的活塞86。当伺服机构80处于压力设置位置时，如图3a所示，驻车棘爪机构88将分离。
[0048]图2a到3b所示的电液式控制系统28具有两种倒档工作模式。并列倒档模式使用扭矩传输机构C1和电功率单元30和32，以便实现车辆的运动。串联倒档模式使用扭矩传输机构C1和C4，以便实现车辆的移动。串联倒档模式要求牙嵌离合器108分离。本发明的牙嵌离合器108由弹簧接合；因而，有选择地用流体加压牙嵌离合器108可实现分离。在所有工作模式中，除了串联倒档模式之外，牙嵌离合器108都保持接合。
[0049]图3a和3b显示处于串联倒档工作模式的电液式控制系统28。在该模式中升压阀138放置在压力设置位置，使电磁阀120能有选择地加压通道206。通道206内的流体压力用于将牙嵌离合器继动阀68偏置到压力设置位置。当牙嵌离合器继动阀68处于压力设置位置时，主通道54内的加压流体连通牙嵌离合器108，以便实现分离。另外，加压流体连通通道190，以便增加冷却电动机/发电机A30和电动机/发电机B32的流体流量。当牙嵌离合器继动阀68返回到弹簧设置位置时，通过排流通道206，牙嵌离合器108内的加压流体排流，牙嵌离合器108接合。通道206通过电磁阀120排流(如果升压阀138保持在压力设置位置)，或者通过将升压阀138放置在弹簧设置位置排流。
[0050]升压阀138在电动可变低速工作模式、第一前进档范围、和第二前进档范围传输工作模式下处于压力设置位置。因而，电磁阀用于控制牙嵌离合器继动阀68。在第三前进档范围、第四前进档范围、和电动可变高速模式下，升压阀138处于弹簧设置位置，使电磁阀120能控制ETRS阀66。但是，在所有上述工作模式下电磁阀120都被命令关闭。
[0051]通过多路复用来自电磁阀120的加压流体信号，能实现ETRS阀66和牙嵌离合器继动阀68的独立控制。希望使用单个电磁线圈完成两个功能，以便降低复杂性和成本，同时增加电液式控制系统28的可靠性。
[0052]尽管已经详细描述了实施本发明的最佳方式，但熟悉本发明所涉及领域的人员会意识到在后附权利要求书的范围内用于实践本发明的各种可作为选择的设计和实施例。

Claims (17)

1.一种用于电动可变混合变速器的控制系统，包括：
多路复用阀；
电磁阀，其用于有选择地向所述多路复用阀提供流体压力；
电动变速器档位段选择阀，其有选择的流体连通所述多路复用阀；和
牙嵌离合器继动阀，其有选择地流体连通所述多路复用阀。
2.如权利要求1所述的用于电动可变混合变速器的控制系统，其特征在于，所述多路复用阀用于将来自所述电磁阀的流体压力有选择地分配给所述电动变速器档位段选择阀或者所述牙嵌离合器继动阀。
3.如权利要求1所述的用于电动可变混合变速器的控制系统，其特征在于，所述多路复用阀是升压阀。
4.如权利要求1所述的用于电动可变混合变速器的控制系统，还包括：
弹簧接合的牙嵌离合器有选择地流体连通所述牙嵌离合器继动阀，用于当所述牙嵌离合器分离时提供串联电动可变传输工作模式。
5.如权利要求4所述的用于电动可变混合变速器的控制系统，其特征在于，所述牙嵌离合器被来自所述牙嵌离合器继动阀的流体压力有选择地分离。
6.如权利要求1所述的用于电动可变混合变速器的控制系统，还包括：
驻车棘爪机构，其中所述电动变速器档位段选择阀用于接合和分离所述驻车棘爪机构。
7.如权利要求6所述的用于电动可变混合变速器的控制系统，其特征在于，所述驻车棘爪机构被伺服机构接合和分离，所述伺服机构用于有选择地接收来自所述电动变速器档位段选择阀的加压流体。
8.如权利要求1所述的用于电动可变混合变速器的控制系统，还包括：
主通道，其内具有加压流体，所述加压流体用于在除了驻车之外的所有变速器工作模式下将所述电动变速器档位段选择阀锁定在压力设置位置。
9.如权利要求1所述的用于电动可变混合变速器的控制系统，其特征在于，所述多路复用阀具有弹簧设置位置和压力设置位置，所述多路复用阀用于当处于所述弹簧设置位置时，将来自所述电磁阀的加压流体分配给所述电动变速器档位段选择阀，所述多路复用阀用于当处于所述压力设置位置时，将来自所述电磁阀的加压流体分配给所述牙嵌离合器继动阀。
10.一种用于控制电动变速器档位段选择阀和牙嵌离合器继动阀的方法，包括：
提供电磁阀，用于为电动变速器档位段选择阀和牙嵌离合器继动阀提供控制压力；
提供多路复用阀，其有选择地流体连通电动变速器档位段选择阀和牙嵌离合器继动阀，用于有选择地将所述控制压力引导至电动变速器档位段选择阀和牙嵌离合器继动阀；
控制所述多路复用阀，以便当所述多路复用阀处于第一位置时，将所述控制压力引导至电动变速器档位段选择阀；和
控制所述多路复用阀，以便当所述多路复用阀处于第二位置时，将所述控制压力引导至牙嵌离合器继动阀。
11.如权利要求10所述的方法，其特征在于，所述多路复用阀是升压阀。
12.如权利要求10所述的方法，其特征在于，所述第一位置是弹簧设置位置，所述第二位置是压力设置位置。
13.一种用于电动可变混合变速器的控制系统，包括：
升压阀；
电磁阀，其用于向所述升压阀有选择地提供流体压力；
电动变速器档位段选择阀，其有选择地流体连通所述升压阀；
牙嵌离合器继动阀，其有选择地流体连通所述升压阀；和
其中所述升压阀具有弹簧设置位置和压力设置位置，所述升压阀用于当处于所述弹簧设置位置时，将来自所述电磁阀的加压流体分配给所述电动变速器档位段选择阀，所述升压阀用于当处于所述压力设置位置时，将来自所述电磁阀的加压流体分配给所述牙嵌离合器继动阀。
14.如权利要求13所述的用于电动可变混合变速器的控制系统，还包括：
弹簧接合的牙嵌离合器有选择地流体连通所述牙嵌离合器继动阀，用于当所述牙嵌离合器分离时提供串联电动可变传输工作模式。
15.如权利要求14所述的用于电动可变混合变速器的控制系统，其特征在于，所述牙嵌离合器被来自所述牙嵌离合器继动阀的流体压力有选择地分离。
16.如权利要求13所述的用于电动可变混合变速器的控制系统，还包括：驻车棘爪机构，其中所述电动变速器档位段选择阀用于接合和分离所述驻车棘爪机构。
17.如权利要求16所述的用于电动可变混合变速器的控制系统，其特征在于，所述驻车棘爪机构被伺服机构接合和分离，所述伺服机构用于有选择地接收来自所述电动变速器档位段选择阀的加压流体。
CN2006101493073A 2005-11-21 2006-11-21 用于电动可变混合变速器的多路复用控制系统和方法 Expired - Fee Related CN1971100B (zh)

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