CN111497588A - 一种电驱发动机一体化动力系统 - Google Patents

一种电驱发动机一体化动力系统 Download PDF

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CN111497588A
CN111497588A CN202010473895.6A CN202010473895A CN111497588A CN 111497588 A CN111497588 A CN 111497588A CN 202010473895 A CN202010473895 A CN 202010473895A CN 111497588 A CN111497588 A CN 111497588A
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power
engine
power motor
control unit
rotor
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王玉海
李连强
郑旭光
张鹏雷
王松
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Nanjing Qingyan Haiyi new energy power Co.,Ltd.
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Qingdao Hailing Yuanzhi Technology R & D Co ltd
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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
    • B60K6/26—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
    • B60K6/40—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
    • 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
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/0803—Circuits or control means specially adapted for starting of engines characterised by means for initiating engine start or stop
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/02—Additional mass for increasing inertia, e.g. flywheels
    • H02K7/025—Additional mass for increasing inertia, e.g. flywheels for power storage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B60K2006/268—Electric drive motor starts the engine, i.e. used as starter motor
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
    • 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

Abstract

一种电驱发动机一体化动力系统，包括发动机、发动机曲轴输出法兰、扭转减震器、动力电机、动力电机旋转编码器、飞轮、支承轴承、动力控制单元、功率配电单元、动力电机逆变器。扭矩减震器包括扭转减震器输入端和扭转减震器输出端。动力电机包括动力电机定子和动力电机转子。动力电机旋转编码器包括旋转编码器定子和旋转编码器转子。动力电机包括动力电机输出端，飞轮经动力电机转子输出轴与动力电机转子相连。动力控制单元分别与功率配电单元和动力电机逆变器进行通讯。本发明所提供动力系统结构紧凑、轴向尺寸小、传递效率高、平顺性好、燃油经济性突出。

Description

一种电驱发动机一体化动力系统
技术领域
本发明属于汽车零部件领域，尤其涉及到一种动力电机与发动机集成的一体化动力系统，其结构紧凑、轴向尺寸小、传递效率高、平顺性好、燃油经济性突出，特别适用于各类串联、P1并联、开关混联等混合动力车型。
背景技术
随着汽车工业的快速发展，“节能”“减排”已成为汽车工业发展的主旋律。混合动力系统作为传统动力向新能源动力过渡的一种中间产物，其节能效果突出，同时兼顾使用便利性和驾驶者习惯，已成为当前汽车发展的既要技术方案。
混合动力是指车辆驱动系统由两个或多个能同时运转的单个驱动系统联合组成的车辆，车辆的行驶功率依据实际的车辆行驶状态由单个驱动系统单独或共同提供。发动机及动力电机作为混合动力的核心驱动系统，其结构形式、动力耦合方式、扭矩分配方式等直接影响到系统的匹配度、燃油经济性及动力输出特性。动力电机与发动机同轴布置，两总成协同工作过程中无相互径向力作用，系统平顺性好、噪音小，同时不占用动力系统径向空间，特别适用于发动机纵置后驱乘用车或者非承载式车身的卡车、客车等车辆。
发明内容
针对传统的发动机及动力电机同轴布置的一体化动力系统轴向尺寸大、同轴度差、系统效率相对较低等问题，本发明提供一种结构紧凑、轴向尺寸小、传递效率高、平顺性好、燃油经济性突出的电驱发动机一体化的动力系统。
为了实现上述目的，本发明采取如下技术方案：
一种电驱发动机一体化动力系统，包括发动机本体、发动机曲轴输出法兰、扭转减震器、动力电机、动力电机旋转编码器、飞轮、支承轴承、动力控制单元、功率配电单元、动力电机逆变器。
所述扭矩减震器包括扭转减震器输入端和扭转减震器输出端。
所述动力电机包括动力电机定子和动力电机转子。
所述动力电机旋转编码器包括旋转编码器定子和旋转编码器转子，反馈动力电机定子与动力电机转子的相对位置及相位信息。
所述动力电机包括动力电机输出端，所述飞轮经所述动力电机转子输出轴与所述动力电机转子相连，所述飞轮位于系统最后端。
所述动力控制单元为动力系统策略执行的物理单元，其通过通讯线束分别与功率配电单元和动力电机逆变器进行通讯。
进一步地，本发明还包括动力电池，所述动力控制单元通过通讯线束与动力电池进行通讯。所述动力电池为动力电机供电，同时可存储动力电机发出的电能。
进一步地，本发明还包括动力电机外壳，所述动力电机外壳与动力电机输出端通过支撑轴承相连。
进一步地，本发明还包括发动机控制单元，所述动力控制单元通过通讯线束与发动机控制单元进行通讯。所述发动机控制单元或动力电机逆变器也可作为动力系统策略执行的物理单元。所述发动机控制单元对发动机动力性及燃油经济性进行管理，接受来自动力控制单元控制指令，控制发动机本体响应控制，实现动力输出。
进一步地，本发明还包括仪表，所述动力控制单元通过通讯线束与仪表进行通讯。所述仪表实现各部件状态指示及人机交互，显示内容包括但不局限于各个通讯部件的状态信息、故障信息等。
进一步地，所述扭转减震器为盘式扭转减震器。
进一步地，所述扭转减震器输入端与发动机曲轴输出法兰通过位于分度圆上的螺栓相连。
进一步地，所述动力电机转子为圆环扁平结构，内部为中空结构。
进一步地，所述扭转减震器布置于动力电机转子内腔，所述扭转减震器输出端与动力电机转子相连。
进一步地，本发明还包括飞轮壳，所述动力电机定子与飞轮壳固定。
进一步地，所述旋转编码器定子与所述动力电机定子相连，所述旋转编码器转子与所述动力电机转子相连。
进一步地，所述功率配电单元通过动力直流母线分别与动力电池、动力电机逆变器相连，实现动力电能的分配和通断控制。
进一步地，所述动力电机逆变器与动力电机定子的内部绕组通过动力三相线相连。
本发明还提供一种电驱发动机一体化动力系统控制方法，具体包括以下步骤：
S1：整车初次上电后，各部件自检，无故障时动力控制单元控制功率配电单元，闭合功率回路。
S2：驾驶员操作钥匙门至“起动”挡时，动力控制单元向动力电机逆变器请求起动扭矩，动力电机逆变器功率控制动力电机，动力电机转子旋转拖动发动机起动；当发动机转速达到起动阈值点，动力控制单元释放扭矩，发动机起动完毕。
S3：动力控制单元以发动机转速、油门踏板开度进行三维MAP查询，获得动力系统需求扭矩值。
S4：动力控制单元向发动机控制单元发送扭矩请求，请求扭矩值以发动机当前扭矩值为起始值，动力系统需求扭矩值为目标值，以标定的步幅进行趋近；动力控制单元向动力电机逆变器请求动力电机扭矩矢量，该值为动力系统需求扭矩值与发动机当前扭矩值的差值。
S5：当车辆满足启停停机条件时，动力控制单元向发动机控制单元发送停机指令，发动机控制单元控制发动机实现熄火；当车辆满足启停起动条件时，动力控制单元向动力电机逆变器请求起动扭矩，动力电机转子转动拖动发动机起动，完成启停起动。
S6：当需要对动力电池进行充电时，动力控制单元判断允许停车充电时，向发动机控制单元请求发动机转速控制，向动力电机逆变器请求发电扭矩控制。
本发明的有益效果如下：
1.动力电机与发动机同轴布置，不增加径向空间，结构紧凑；
2.动力电机与发动机之间布置有扭转减震器，动力电机与发动机柔性连接，发动机振动对动力电机影响较小，系统可靠性高，系统传动效率高；
3.动力电机为环状扁平结构，盘式扭转减震器位于动力电机环装内腔中，轴向尺寸小；
4.动力电机转子惯量、飞轮惯量、扭转减震器惯量之和等效为原始发动机飞轮惯量，不影响发动机本体平顺性；
5.单飞轮结构，且飞轮位于动力电机后端，动力系统后端可直接连接常规的离合器压盘、离合器片、变速箱等机构，系统适配度高，通用性好；
6.使用动力电机起动发动机，起动迅速且平稳；拓展发动机启停功能，节油效果突出；发动机本体无需匹配起动机，降低成本；
7.动力系统总输出扭矩跟随需求扭矩，驾驶特性好；
8.发动机以当前扭矩为起点步进跟随需求扭矩，发动机无瞬态工况，燃油经济性突出；
9.动力系统主动发电功能，实现动力电池电能补充，可拓展多种电能使用方式；
10.动力系统可匹配自动挡、手动挡变速箱，灵活度高。
附图说明
图1为一种电驱发动机一体化动力系统结构简图；
图2为一种电驱发动机一体化动力系统实施例结构示意图。
附图标记：1-发动机本体，101-发动机控制单元，102-飞轮壳，103-发动机曲轴输出法兰，104-动力电机外壳，201-动力电机定子，202-动力电机转子，203-动力电机输出端，3-花键，401-旋转编码器转子，402-旋转编码器定子，501-扭转减震器输入端，502-扭转减震器输出端，6-飞轮，7-驱动桥，8-支承轴承，9-十字节，10-动力控制单元，11-通讯线束，12-仪表，13-动力电池，14-功率配电单元，15-动力直流母线，16-动力电机逆变器，17-动力三相线，18-变速箱，19-离合器摩擦片，20-离合器压盘，21-分离轴承，22-分离拨叉，23-变速箱输入轴，24-传动轴。
具体实施方式
为了便于理解，下面结合附图，通过实施例，对本发明技术方案作进一步具体描述：
如图1和图2所示，一种电驱发动机一体化动力系统，包括发动机本体1、发动机曲轴输出法兰103、扭转减震器输入端501、扭转减震器输出端502、动力电机定子201、动力电机转子202、旋转编码器定子402、旋转编码器转子401、飞轮壳102、动力电机输出端203、飞轮6、动力电机外壳104、支承轴承8、动力控制单元10、发动机控制单元101、通讯线束11、仪表12、动力电池13、功率配电单元14、动力电机逆变器16、动力直流母线15、动力三相线17、变速箱18、离合器摩擦片19、离合器压盘20、分离轴承21、分离拨叉22、变速箱输入轴23、传动轴24、十字节9、花键3、驱动桥7。
动力电机定子201和动力电机转子202组成动力电机。
扭转减震器输入端501和扭转减震器输出端502组成扭转减震器。
旋转编码器定子402和旋转编码器转子401组成动力电机旋转编码器。
飞轮6经动力电机转子输出端203与动力电机转子202相连。
动力控制单元10通过通讯线束11分别与发动机控制单元101、仪表12、动力电池13、功率配电单元14、动力电机逆变器16进行通讯。
动力电机外壳104与动力电机输出端203通过支撑轴承8相连。动力电机定子201与飞轮壳102固定。
扭转减震器输入端501与发动机曲轴输出法兰103通过位于分度圆上的螺栓相连。
扭转减震器布置于动力电机转子202内腔，扭转减震器输出端502与动力电机转子202相连。
旋转编码器定子402与动力电机定子201相连，旋转编码器转子401与动力电机转子202相连。
功率配电单元14通过动力直流母线15分别与动力电池13、动力电机逆变器16相连，实现动力电能的分配和通断控制。
动力电机逆变器16与动力电机定子201的内部绕组通过动力三相线17相连。
本实施例所提供电驱发动机一体式动力系统匹配手动挡变速箱18。变速箱输入轴23与离合器摩擦片19中心轴通过花键3连接；分离轴承21、分离拨叉22、离合器压盘20等安装同常规手动挡变速箱结构。
变速箱18后端经带十字万向节及花键轴的传动轴24连接至驱动桥7。
本实施例中，选用电驱系统电压平台为高压平台，动力电池为功率型锂电池组。
动力电池13、动力电机逆变器16、功率配电单元14电压等级相同或相近；动力电池13由动力电池组和电池管理单元组成，电池管理单元功能包括电池状态监控、电池核电荷数估算、电流监控等；功率配电单元14包括功率供电通断控制、绝缘监测等；动力电机逆变器16接受外部控制请求，控制动力电机响应请求，同时实时上报动力电机状态；动力电池13、功率配电单元14、动力电机逆变器16、动力电机之间功率供电为高压线束。
动力控制单元10、仪表12、发动机控制单元101、动力电机逆变器16、功率配电单元14通过整车线束相连，同时选用CAN通讯总线进行信号交互。
本实施例中，该系统的工作过程如下：
整车初次上电后，各部件自检，当各部件无故障时，动力控制单元10控制功率配电单元14，接通功率回路，此时系统上电完成；否则功率配电单元14断开功率回路，系统处于待机状态。驾驶员操作钥匙门至“起动”挡时，动力控制单元10向动力电机逆变器16请求起动扭矩，动力电机逆变器16控制动力电机，动力电机转子202旋转拖动发动机起动，当发动机转速达到起动阈值点，动力控制单元10释放扭矩，发动机控制单元101接管发动机，发动机启动完毕后处于怠速状态。
动力控制单元10接收发动机转速、油门踏板信号，进行三维MAP查询，获得动力系统的需求扭矩值；对需求扭矩值进行分解，获得发动机控制扭矩值与动力电机控制扭矩值，其中：发动机控制扭矩值为以发动机当前扭矩值为起始值，动力系统需求扭矩值为目标值，起始值以标定步幅趋近目标值时的下一控制循环值；动力电机扭矩值为动力系统需求扭矩值与发动机当前扭矩的差值，当差值为正时，表示动力电机输出正扭矩，即为电动模式，否则为负扭矩，即为制动模式。
当车辆满足启停停机条件，即车速为零、存在制动力且动力电机可满足发动机启动，动力控制单元10向发动机控制单元101发送停机指令，发动机控制单元101控制发动机实现熄火；当车辆满足启停起动条件时，动力控制单元10向动力电机逆变器16请求起动扭矩，动力电机转子202转动拖动发动机起动，完成启停起动。
驾驶员操作充电按钮可实现动力电池电能的主动补充，此时动力控制单元10判断允许停车充电时，即车速为零、存在驻车信号、充电开关按下，动力控制单元10向发动机控制单元101请求发动机转速控制，向动力电机逆变器16请求发电扭矩控制，此时发动机工作在设定转速下，动力电机处于发电模式，发动机机械能转化为电能存储至动力电池。
上述实施例只是对本发明技术方案的举例说明或解释，而不应理解为对本发明技术方案的限制，显然，本领域的技术人员可对本发明进行各种修改和变型。倘若这些修改和变型不脱离本发明的精神和范围，则本发明也包含这些修改和变型在内。

Claims (10)

1.一种电驱发动机一体化动力系统，包括发动机本体、发动机曲轴输出法兰、扭转减震器、动力电机、动力电机旋转编码器、飞轮、支承轴承、动力控制单元、动力电池、功率配电单元、动力电机逆变器；
所述扭矩减震器包括扭转减震器输入端和扭转减震器输出端；
所述动力电机包括动力电机定子和动力电机转子；
所述动力电机旋转编码器包括旋转编码器定子和旋转编码器转子；
所述动力电机包括动力电机输出端，所述飞轮经所述动力电机转子输出轴与所述动力电机转子相连；
所述动力控制单元通过通讯线束分别与功率配电单元、动力电池、动力电机逆变器进行通讯。
2.根据权利要求1所述的电驱发动机一体化动力系统，其特征在于，本发明还包括发动机控制单元，所述动力控制单元通过通讯线束与发动机控制单元进行通讯。
3.根据权利要求2所述的电驱发动机一体化动力系统，其特征在于，本发明还包括仪表和飞轮壳，所述动力控制单元通过通讯线束与仪表进行通讯，所述动力电机定子与飞轮壳固定。
4.根据权利要求3所述的电驱发动机一体化动力系统，其特征在于，所述扭转减震器为盘式扭转减震器。
5.根据权利要求4所述的电驱发动机一体化动力系统，其特征在于，所述扭转减震器输入端与发动机曲轴输出法兰通过位于分度圆上的螺栓相连。
6.根据权利要求5所述的电驱发动机一体化动力系统，其特征在于，所述动力电机转子为圆环扁平结构，内部为中空结构，所述扭转减震器布置于动力电机转子内腔，所述扭转减震器输出端与动力电机转子相连。
7.根据权利要求6所述的电驱发动机一体化动力系统，其特征在于，所述旋转编码器定子与所述动力电机定子相连，所述旋转编码器转子与所述动力电机转子相连。
8.根据权利要求7所述的电驱发动机一体化动力系统，其特征在于，所述功率配电单元通过动力直流母线分别与动力电池和动力电机逆变器相连，所述动力电机逆变器与动力电机定子的内部绕组通过动力三相线相连。
9.一种电驱发动机一体化动力系统控制方法，其特征在于，包括以下步骤：
S1：整车初次上电后，各部件自检，无故障时动力控制单元控制功率配电单元，闭合功率回路；
S2：驾驶员操作钥匙门至“起动”挡时，动力控制单元向动力电机逆变器请求起动扭矩，动力电机逆变器功率控制动力电机，动力电机转子旋转拖动发动机起动；当发动机转速达到起动阈值点，动力控制单元释放扭矩，发动机起动完毕；
S3：动力控制单元以发动机转速、油门踏板开度进行三维MAP查询，获得动力系统需求扭矩值；
S4：动力控制单元向发动机控制单元发送扭矩请求，请求扭矩值以发动机当前扭矩值为起始值，动力系统需求扭矩值为目标值，以标定的步幅进行趋近；动力控制单元向动力电机逆变器请求动力电机扭矩矢量，该值为动力系统需求扭矩值与发动机当前扭矩值的差值；
S5：当车辆满足启停停机条件时，动力控制单元向发动机控制单元发送停机指令，发动机控制单元控制发动机实现熄火；当车辆满足启停起动条件时，动力控制单元向动力电机逆变器请求起动扭矩，动力电机转子转动拖动发动机起动，完成启停起动；
S6：当需要对动力电池进行充电时，动力控制单元判断允许停车充电时，向发动机控制单元请求发动机转速控制，向动力电机逆变器请求发电扭矩控制。
10.根据权利要求9所述的电驱发动机一体化动力系统控制方法，其特征在于：在S1中，功率配电单元闭合功率回路时，首先闭合预充回路，以动力电机逆变器反馈的母线电压值为参考，判断是否预充完毕，预充完毕后闭合主回路，断开预充回路；在S2中，动力控制单元根据以发动机温度值为索引的二维MAP获得发动机起动需求扭矩；发动机控制单元判断发动机启动成功后，控制发动机怠速运行。
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CN112224008A (zh) * 2020-11-16 2021-01-15 吉林大学 一种嵌套式同轴混联混合动力系统及其控制方法
CN112653308A (zh) * 2020-12-10 2021-04-13 江苏中奕和创智能科技有限公司 一种不等距同心叠绕组永磁电机
CN112721610A (zh) * 2021-03-09 2021-04-30 吉林大学 一种混合动力用机电一体化电驱变速箱系统及其控制方法

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CN112224008A (zh) * 2020-11-16 2021-01-15 吉林大学 一种嵌套式同轴混联混合动力系统及其控制方法
CN112224008B (zh) * 2020-11-16 2023-12-15 吉林大学 一种嵌套式同轴混联混合动力系统及其控制方法
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