CN106515417A - 一种混合动力驱动系统 - Google Patents
一种混合动力驱动系统 Download PDFInfo
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- 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
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- 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
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- 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
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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
- B60K6/38—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
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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
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/54—Transmission for changing ratio
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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
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
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- 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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- 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
Abstract
本发明公开了一种混合动力驱动系统,包括:平行设置的输入轴与输出轴、发动机、发电电机、驱动电机、分离离合器、一档分离器、一档主动齿轮、一档被动齿轮、二档分离器、二档主动齿轮、二档被动齿轮、主减速器主动齿轮、主减速器被动齿轮和差速器;发动机、发电电机、分离离合器、一档主动齿轮、一档离合器、二档离合器、二档主动齿轮和驱动电机在第一方向上平行设置且分别与输入轴联结;主减速器主动齿轮、一档被动齿轮、二档被动齿轮在第二方向上平行设置且分别与输出轴联结,第二方向与第一方向平行。发明的混合动力驱动系统可实现无动力中断换档,且结构简单,档位少,齿轮副少,传动过程动力损失较少,可明显提高效率,以及生产实现性好。
Description
技术领域
本发明涉及双电机混合动力汽车,特别是双电机插电式混合动力汽车,具体涉及只通过两个档位来满足车辆行驶要求的少档化无动力中断离合器耦合换档混合动力驱动系统。
背景技术
随着环境日益恶化和不可再生能源逐渐枯竭,节能环保成为汽车行业发展的主流趋势。如今,混合动力汽车已经成为各大汽车厂商大力发展的方向。插电式混合动力方案可以均衡的达成车辆的动力性和经济性指标,是除纯电动以外最环保,最节油的整车构型方案。
现有技术中,动力系统驱动方式主要有电机动力耦合行星齿轮换档、电机动力耦合同步器换档和轮边驱动等。其中,行星齿轮架的材料和加工都有非常高的要求,电机动力耦合同步器换档存在换档动力中断,轮边驱动电动机的分散安装提出了结构布置、热管理、电磁兼容以及振动控制等多方面的技术难题。
发明内容
为解决上述技术问题,本发明提供一种低油耗、强动力、加工简单、换档无动力中断的少档化无动力中断离合器耦合换档混合动力驱动系统。
本发明采用的技术方案为:
本发明的实施例提供一种混合动力驱动系统,包括:发动机、发电电机、驱动电机、分离离合器、输入轴、一档分离器、一档主动齿轮、一档被动齿轮、二档分离器、二档主动齿轮、二档被动齿轮、输出轴、主减速器主动齿轮、主减速器被动齿轮和差速器,其中,所述输入轴与所述输出轴平行设置;所述发动机、发电电机、分离离合器、一档主动齿轮、一档离合器、二档离合器、二档主动齿轮和驱动电机在垂直于所述输入轴的第一方向上平行设置且分别与所述输入轴联结,其中,所述发送机与所述输入轴的前端联结,所述驱动电机与所述输入轴的末端联结,所述一档离合器的主动盘与所述输入轴联结,所述一档离合器的从动盘与所述一档主动齿轮联结,所述二档离合器的主动盘与所述输入轴联结,所述二档离合器的从动盘与所述二档主动齿轮联结,所述分离离合器的主动盘与所述发动机和所述发电电机联结,所述分离离合器的从动盘与所述输入轴联结;所述主减速器主动齿轮、一档被动齿轮、二档被动齿轮在垂直于所述输出轴的第二方向上平行设置且分别与所述输出轴联结,所述第二方向与所述第一方向平行;所述主减速器主动齿轮与所述主减速器被动齿轮外啮合,所述一档被动齿轮与所述一档主动齿轮外啮合,所述二档被动齿轮与所述二档主动齿轮外啮合,所述差速器与车辆的车轮联结。
优选地,所述分离离合器的主动盘与所述发电电机的转子联结,所述发动机和所述驱动电机所产生的动力通过所述分离离合器进行耦合,当所述分离离合器接合时,将所述发动机的扭矩传递给所述输入轴。
优选地,所述一档离合器和所述二档离合器对称设置在所述所述输入轴上,所述发电电机通过发电电机支架设置在所述输入轴上,所述驱动电机通过驱动电机支架设置在所述输入轴上。
优选地,所述一档主动齿轮和所述二档主动齿轮均空套在所述输入轴,并通过所述一档离合器和所述二档离合器的相互切换,实现所述车辆的换挡;当所述一档离合器接合时,所述一档主动齿轮与所述输入轴通过一档离合器联结,当所述二档离合器接合时,所述二档主动齿轮与所述输入轴通过二档离合器联结。
优选地,所述一档离合器和所述二档离合器为干式离合器或湿式离合器。
优选地,所述混合动力驱动系统的工作模式包括以下8种工作模式:纯电动行驶模式、低速串联模式、行车充电模式、停车充电模式、电机助力模式、制动能量回收模式、纯电驱动并启动发动机模式和电机反转倒挡模式。
优选地,当所述混合动力驱动系统处于纯电动行驶模式、制动能量回收模式和电机反转倒挡模式时,所述发动机和所述发电电机处于关闭状态,所述驱动电机处于开启状态,所述分离离合器处于分离状态,所述一档离合器和所述二档离合器处于接合状态。
优选地,当所述混合动力驱动系统处于低速串联模式时,所述发动机、所述发电电机和所述驱动电机均处于开启状态,所述分离离合器处于分离状态,所述一档离合器和所述二档离合器处于接合状态;当所述混合动力驱动系统处于行车充电模式时,所述发动机、所述发电电机和所述驱动电机均处于开启状态,所述分离离合器处于接合状态,所述一档离合器和所述二档离合器处于接合状态;当所述混合动力驱动系统处于停车充电模式时,所述发动机和所述发电电机处于开启状态,所述驱动电机处于关闭状态,所述分离离合器处于分离状态,所述一档离合器和所述二档离合器处于分离状态;当所述混合动力驱动系统处于电机助力模式时,所述发动机处于开启状态,所述发电电机处于关闭状态,所述驱动电机处于开启状态,所述分离离合器处于接合状态,所述一档离合器和所述二档离合器处于接合状态;当所述混合动力驱动系统处于纯电驱动并启动发动机模式时,所述发动机处于关闭状态,所述发电电机和所述驱动电机处于开启状态,所述分离离合器处于分离状态,所述一档离合器和所述二档离合器处于接合状态。
本发明的混合动力驱动系统具有以下有益效果:
1.本发明的混合动力驱动系统通过一档离合器和二档离合器的相互切换来保证输出轴始终有动力输出,从而可实现无动力中断换档,进行消除换档顿挫感,提高驾驶舒适性。
2.本发明的混合动力驱动系统由于输入轴与输出轴是平行布置的结构,结构简单,每个离合器控制一个档位,档位少,齿轮副少,传动过程动力损失较少,可明显提高效率。
3.本发明的混合动力驱动系统结构中的输入轴和输出轴为传统的平行轴式结构,相比于同轴设置的结构(例如,行星齿轮结构),可利用现有的生产资源加工,可明显降低制造难度和成本,生产实现性好。
附图说明
图1是本发明的混合动力驱动系统的结构示意图。
具体实施方式
以下结合附图对本发明的具体实施方式进行描述。
图1是本发明的混合动力驱动系统的结构示意图。
如图1所示,本发明的混合动力驱动系统包括发动机1、发电电机21、驱动电机13、分离离合器3、输入轴20、一档主动齿轮6、一档离合器7、二档离合器8、二档主动齿轮9、输出轴15、二档被动齿轮14、一档被动齿轮16、主减速器主动齿轮19、主减速器被动齿轮17和差速器18。发电电机21包括发电电机转子4和发电电机定子5,整体支撑在发电电机支架2上,驱动电机13包括驱动电机定子10和驱动电机转子11,整体支撑在驱动电机支架12上。
在本发明中,输入轴20与输出轴15平行设置;发动机1、发电电机21、分离离合器3、一档主动齿轮6、一档离合器7、二档离合器8、二档主动齿轮9和驱动电机13在垂直于输入轴的第一方向上平行设置且分别与输入轴联结;主减速器主动齿轮19、一档被动齿轮16、二档被动齿轮17在垂直于输出轴的第二方向上平行设置且分别与输出轴联结,第二方向与第一方向平行。如此,本发明提供的混合动力驱动系统的传动系整体为平行布置结构,使得结构简单,容易实现。
具体地,分离离合器3的主动盘联结发电电机转子4以及汽车发动机1,分离离合器3的从动盘联结输入轴20,当分离离合器3接合时,可将发动机扭矩传递给输入轴20。发动机1和驱动电机13所产生的动力通过分离离合器3进行耦合,发动机1和驱动电机13都可以通过一档离合器7和二档离合器8对车辆进行动力输出。在本发明中,分离离合器3与一档离合器7和二档离合器8的功能不同,传递扭矩不同,分离离合器3传递扭矩比一档离合器7和二档离合器8传递的扭矩小一些。
一档离合器7的主动盘联结输入轴20,一档离合器7的从动盘联结一档主动齿轮6,当一档离合器7接合时,联结一档主动齿轮6与输入轴20通过一档离合器7联结。
二档离合器8的主动盘联结输入轴20,二档离合器8的从动盘联结二档主动齿轮9,当二档离合器8接合时,二档主动齿轮9与输入轴20通过二档离合器8联结。
一档被动齿轮16联结输出轴15,并与一档主动齿轮6为外啮合。二档被动齿轮14联结输出轴15,并与二档主动齿轮9为外啮合。主减速器主动齿轮19联结输出轴15,并与主减速器被动齿轮17为外啮合。一档被动齿轮16、二档被动齿轮14和主减速器主动齿轮19均可固定在输出轴15上,且这三个齿轮的位置可根据结构布置要求来进行变换设置。
一档主动齿轮6可空套在输入轴20上,可绕输入轴转动,二档主动齿轮9可空套在输入轴20上,可绕输入轴转动,一档主动齿轮6和二档主动齿轮9可通过一档离合器7和二档离合器8的互相切换,实现换挡,即使得车辆处于一档档位和二档档位两个档位,从而实现两个档位功能。差速器18与车辆的车轮(未图示)联结,驱动电机13联结输入轴20。
本发明中的一档离合器7和二档离合器8为背靠背设置在输入轴20上的对称结构,即两者的结构相同,可为干式离合器或湿式离合器,具体可根据实例的布置要求来进行选择,例如,当布置空间较大,对成本有要求的情况下,可选择干式离合器,当布置空间较小,对成本控制不高,可选择湿式离合器。本发明通过一档离合器7和二档离合器8的相互切换来保证输出轴始终有动力输出,从而可实现无动力中断换档,进行消除换档顿挫感,提高驾驶舒适性。此外,每个离合器控制一个档位,从而使得档位少,齿轮副少,零件数量少。
本发明的混合动力驱动系统可实现无动力中断换档,提供纯电动行驶模式、低速串联模式、行车充电模式、停车充电模式、电机助力模式、制动能量回收模式、纯电驱动并起发动机模式以及电机反转倒档模式等8种工作模式,以下对各个工作模式分别进行介绍。
1)纯电动行驶模式
在电子控制单元ECU根据发电电机的电量、车辆所处档位、油门位置和刹车灯条件判断混合动力驱动系统处于纯电动行驶模式时,发动机1关闭,发电电机21关闭,分离离合器3分离,此时发动机1无动力输出;驱动电机13开启,一档离合器7接合,此时驱动电机13产生的动力通过输入轴20、一档离合器7、一档主动齿轮6、输出轴15、主减速器主动齿轮19、主减速器被动齿轮17和差速器18,最终将动力传递给车辆,完成纯电行驶模式,此时车辆为一档行驶。当需要二档档位行驶时,一档离合器7分离,二档离合器8结合,二档行驶原理与一档行驶原理相同,在此省略赘述。一档行驶和二档行驶为ECU根据驾驶员意图(油门、刹车)、车速等条件所判断的行驶档位。
2)低速串联模式
当电子控制单元判断电池电量极低,不足以对驱动电机供电使其驱动车辆行驶,却又必须进行电机驱动车辆行驶的工况时,如:电量极低时倒档行驶时,开启发动机1和发电电机21,分离分离离合器3,此时发动机1产生的动力驱动发电电机21进行发电,多发出的电能传递给驱动电机13,此时,驱动电机13开启,一档离合器7接合,驱动电机13产生的动力通过输入轴20、一档离合器7、一档主动齿轮6、输出轴15、主减速器主动齿轮19、主减速器被动齿轮17和差速器18,最终将动力传递给车辆,使得混合动力驱动系统处于低速串联模式。此时车辆为一档行驶。当需要二档档位行驶时,一档离合器7分离,二档离合器8结合,二档行驶原理与一档行驶原理相同,在此省略赘述。
3)行车充电模式
当电子控制单元根据电池电量及发动机状态判断行驶的车辆需要充电时,发动机1和发电电机21开启,接合分离离合器3,此时发动机产生的动力一部分驱动发电电机21进行发电,将电能储存在电池中,电池用于同时给发电电机和驱动电机进行充电,另一部分动力通过分离离合器3,传递至输入轴20,动力最终通过输入轴20、一档离合器7、一档主动齿轮6、输出轴15、主减速器主动齿轮19、主减速器被动齿轮17和差速器18,将动力传递给车辆,使得混合动力驱动系统处于行车充电模式。此时,驱动电机13关闭,无动力输出。此时只有发动机驱动车辆,并在一档下行驶。当需要二档档位行驶时,一档离合器7分离,二档离合器8结合,二档行驶原理与一档行驶原理相同,在此省略赘述。此外,在车辆行驶中,如果发动机有剩余的能量须要回收,则进行行车充电。
4)停车充电模式
当电子控制单元判定车辆需要停车充电时,开启发动机1和发电电机21,分离分离离合器3,此时发动机1产生的动力驱动发电电机21进行发电,将电能储存在电池中,驱动电机12关闭,一档离合器7分离,二档离合器8分离,此时系统处于停车发电模式。
5)电机助力模式
当电子控制单元根据发动机状态及驾驶员一体判断混合动力驱动系统处于电机助力模式时(在此模式下,发动机功率不足,驾驶员若想加速,则用电机进行助力),发动机1开启,发电电机21关闭,分离离合器3接合,此时发动机产生的动力通过分离离合器3,传递至输入轴20,动力最终通过输入轴20、一档离合器7、一档主动齿轮6、输出轴15、主减速器主动齿轮19、主减速器被动齿轮17和差速器18,将动力传递给车辆,此时,驱动电机13开启,将力矩传递至输入轴20,辅助发动机1,驱动车辆,完成电机助力模式。此时车辆为一档行驶。当需要二档档位行驶时,一档离合器7分离,二档离合器8结合,二档行驶原理与一档行驶原理相同,在此省略赘述。
6)制动能量回收模式
当驾驶员踩下刹车时,驱动电机13开启并进入发电模式,一档离合器7接合,此时车辆由于惯性带动车轮,车轮将此惯性力传递给差速器18和主减速器被动齿轮17,最终通过主减速器主动齿轮19、输出轴15、一档主动齿轮6、一档离合器7、输入轴20,传递给驱动电机13。驱动电机13将惯性力转换为电能储存在电池中,完成制动能量回收模式。此时车辆为一档行驶。当需要二档档位行驶时,一档离合器7分离,二档离合器8结合,二档行驶原理与一档行驶原理相同,在此省略赘述。
7)纯电驱动并启动发动机模式
当纯电不能满足车辆行驶时,例如,电量不足或功率不足时,电子控制单元判断混合动力驱动系统处于纯电驱动并利用电机代替启动机启动发动机的模式时,车辆在电动行驶模式下行驶,此时分离离合器3分离,开启发电电机21,带动发动机1启动,完成纯电驱动并起发动机模式。
8)电机反转倒档模式
在混合动力驱动系统处于电机反转倒档模式时,即需要倒车的时候,分离离合器3分离,此时发动机无动力输出;驱动电机13开启并反转,一档离合器7接合,此时驱动电机13产生的反转动力通过输入轴20、一档离合器7、一档主动齿轮6、输出轴15、主减速器主动齿轮19、主减速器被动齿轮17和差速器18,最终将反转动力传递给车轮,完成电机反转倒档模式。
综上,本发明的混合动力驱动系统的各个工作模式的工作条件如下表1所示:
表1
工作模式 | 发动机 | 发电电机 | 驱动电机 | 分离离合器 | 一/二档离合器 |
纯电动行驶模式 | 关闭 | 关闭 | 开启 | 分离 | 接合 |
低速串联模式 | 开启 | 开启 | 开启 | 分离 | 接合 |
行车充电模式 | 开启 | 开启 | 开启 | 接合 | 接合 |
停车充电模式 | 开启 | 开启 | 关闭 | 分离 | 分离 |
电机助力模式 | 开启 | 开启 | 开启 | 接合 | 接合 |
制动能量回收模式 | 关闭 | 关闭 | 开启 | 分离 | 接合 |
纯电驱动并起发动机模式 | 关闭 | 关闭 | 开启 | 分离 | 接合 |
电机反转倒挡模式 | 关闭 | 关闭 | 开启 | 分离 | 接合 |
尽管已经示出和描述了本发明的实施例,本领域的普通技术人员可以理解:在不脱离本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由权利要求及其等同物限定。
Claims (8)
1.一种混合动力驱动系统,其特征在于,包括:发动机、发电电机、驱动电机、分离离合器、输入轴、一档分离器、一档主动齿轮、一档被动齿轮、二档分离器、二档主动齿轮、二档被动齿轮、输出轴、主减速器主动齿轮、主减速器被动齿轮和差速器,其中,
所述输入轴与所述输出轴平行设置;
所述发动机、发电电机、分离离合器、一档主动齿轮、一档离合器、二档离合器、二档主动齿轮和驱动电机在垂直于所述输入轴的第一方向上平行设置且分别与所述输入轴联结,其中,所述发送机与所述输入轴的前端联结,所述驱动电机与所述输入轴的末端联结,所述一档离合器的主动盘与所述输入轴联结,所述一档离合器的从动盘与所述一档主动齿轮联结,所述二档离合器的主动盘与所述输入轴联结,所述二档离合器的从动盘与所述二档主动齿轮联结,所述分离离合器的主动盘与所述发动机和所述发电电机联结,所述分离离合器的从动盘与所述输入轴联结;
所述主减速器主动齿轮、一档被动齿轮、二档被动齿轮在垂直于所述输出轴的第二方向上平行设置且分别与所述输出轴联结,所述第二方向与所述第一方向平行;
所述主减速器主动齿轮与所述主减速器被动齿轮外啮合,所述一档被动齿轮与所述一档主动齿轮外啮合,所述二档被动齿轮与所述二档主动齿轮外啮合,所述差速器与车辆的车轮联结。
2.根据权利要求1所述的混合动力驱动系统,其特征在于,所述分离离合器的主动盘与所述发电电机的转子联结,所述发动机和所述驱动电机所产生的动力通过所述分离离合器进行耦合,当所述分离离合器接合时,将所述发动机的扭矩传递给所述输入轴。
3.根据权利要求1所述的混合动力驱动系统,其特征在于,所述一档离合器和所述二档离合器对称设置在所述所述输入轴上,所述发电电机通过发电电机支架设置在所述输入轴上,所述驱动电机通过驱动电机支架设置在所述输入轴上。
4.根据权利要求1所述的混合动力驱动系统,其特征在于,所述一档主动齿轮和所述二档主动齿轮均空套在所述输入轴,并通过所述一档离合器和所述二档离合器的相互切换,实现所述车辆的换挡;
当所述一档离合器接合时,所述一档主动齿轮与所述输入轴通过一档离合器联结,当所述二档离合器接合时,所述二档主动齿轮与所述输入轴通过二档离合器联结。
5.根据权利要求1所述的混合动力驱动系统,其特征在于,所述一档离合器和所述二档离合器为干式离合器或湿式离合器。
6.根据权利要求1所述的混合动力驱动系统,其特征在于,所述混合动力驱动系统的工作模式包括以下8种工作模式:纯电动行驶模式、低速串联模式、行车充电模式、停车充电模式、电机助力模式、制动能量回收模式、纯电驱动并启动发动机模式和电机反转倒挡模式。
7.根据权利要求6所述的混合动力驱动系统,其特征在于,
当所述混合动力驱动系统处于纯电动行驶模式、制动能量回收模式和电机反转倒挡模式时,所述发动机和所述发电电机处于关闭状态,所述驱动电机处于开启状态,所述分离离合器处于分离状态,所述一档离合器和所述二档离合器处于接合状态。
8.根据权利要求6所述的混合动力驱动系统,其特征在于,当所述混合动力驱动系统处于低速串联模式时,所述发动机、所述发电电机和所述驱动电机均处于开启状态,所述分离离合器处于分离状态,所述一档离合器和所述二档离合器处于接合状态;
当所述混合动力驱动系统处于行车充电模式时,所述发动机、所述发电电机和所述驱动电机均处于开启状态,所述分离离合器处于接合状态,所述一档离合器和所述二档离合器处于接合状态;
当所述混合动力驱动系统处于停车充电模式时,所述发动机和所述发电电机处于开启状态,所述驱动电机处于关闭状态,所述分离离合器处于分离状态,所述一档离合器和所述二档离合器处于分离状态;
当所述混合动力驱动系统处于电机助力模式时,所述发动机处于开启状态,所述发电电机处于关闭状态,所述驱动电机处于开启状态,所述分离离合器处于接合状态,所述一档离合器和所述二档离合器处于接合状态;
当所述混合动力驱动系统处于纯电驱动并启动发动机模式时,所述发动机处于关闭状态,所述发电电机和所述驱动电机处于开启状态,所述分离离合器处于分离状态,所述一档离合器和所述二档离合器处于接合状态。
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