WO2011000259A1 - 电动汽车发电机组的控制方法 - Google Patents

电动汽车发电机组的控制方法 Download PDF

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WO2011000259A1
WO2011000259A1 PCT/CN2010/073807 CN2010073807W WO2011000259A1 WO 2011000259 A1 WO2011000259 A1 WO 2011000259A1 CN 2010073807 W CN2010073807 W CN 2010073807W WO 2011000259 A1 WO2011000259 A1 WO 2011000259A1
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controller
battery
vehicle
power
driving
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French (fr)
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陈松先
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芜湖普威技研有限公司
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K6/00Arrangement 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
    • B60K6/20Arrangement 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
    • B60K6/42Arrangement 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
    • B60K6/46Series type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L50/00Electric propulsion with power supplied within the vehicle
    • B60L50/50Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/61Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
    • B60L50/62Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles charged by low-power generators primarily intended to support the batteries, e.g. range extenders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W10/00Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08Conjoint 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W10/00Conjoint control of vehicle sub-units of different type or different function
    • B60W10/24Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
    • B60W10/26Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W20/00Control systems specially adapted for hybrid vehicles
    • B60W20/10Controlling the power contribution of each of the prime movers to meet required power demand
    • B60W20/13Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W50/00Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/0097Predicting future conditions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L2260/00Operating Modes
    • B60L2260/40Control modes
    • B60L2260/50Control modes by future state prediction
    • B60L2260/52Control modes by future state prediction drive range estimation, e.g. of estimation of available travel distance
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W20/00Control systems specially adapted for hybrid vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00Input parameters relating to a particular sub-units
    • B60W2510/24Energy storage means
    • B60W2510/242Energy storage means for electrical energy
    • B60W2510/244Charge state
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W2552/00Input parameters relating to infrastructure
    • B60W2552/20Road profile
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W2556/00Input parameters relating to data
    • B60W2556/45External transmission of data to or from the vehicle
    • B60W2556/50External transmission of data to or from the vehicle for navigation systems
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/40Engine management systems
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/62Hybrid vehicles
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/80Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/84Data processing systems or methods, management, administration

Description

电动汽车发电机组的控制方法
技术领域
本发明涉及一种电动汽车发电机组的控制方法, 属于电动汽车技术领域。 背景技术
随着电力电子、 动力电池等关键技术的不断成熟, 具有节能、 环保等优势的混合 动力电动汽车引起了各大汽车厂商和普通消费者的普遍关注, 电动汽车已经成为了节 能环保汽车的重要发展方向。 发明内容
本发明所要解决的技术问题是提供一种混合动力电动汽车发电机控制方法, 它能 让驾驶员根据自己的行程计划灵活的选择储备动力系统发电机组的工作模式, 从而最 大限度的发挥整车性能 (最大程度的满足驾驶员的动力性和行驶里程要求) 和经济性 能 (多用电少用油) 尤其是能够合理充分的发挥发电机组作为储备动力源的作用。
本发明所要解决的技术问题是通过如下技术方案实现的:
一种电动汽车发电机组控制方法, 包括发电机组及控制器、 驱动电机及控制器、 动力电池及控制器、 整车控制器以及行驶模式选择开关, 车辆启动时, 根据行程计划 选择行驶模式, 电池控制器检测当时电池的实际电量状态, 整车控制器根据行驶模式 选择开关信号控制车辆按照指定的模式运行, 行驶过程中整车控制器根据电池电量状 态值、 车速信号来控制发电机组是否工作和是否要对驱动电机进行功率限制并给相应 控制器发出控制信号。
进一步, 发电机组控制器根据车辆状态调节发电机组的实际输出功率并控制发电 机组的发动机工作在最高效区域。
进一步, 当预计行驶里程小于车载动力电池续驶里程时, 采用短途行驶模式, 当 次全程都不启用作为储备动力源的所述发电机组。
进一步, 当实际行驶里程大于预计行驶里程, 且电池电量消耗到低于荷电状态低 限阀值 S2时, 开启发动机组并使驱动电机进入功率限制模式。
进一步, 当预计行驶里程大于车载动力电池续驶里程时, 按下长途行驶模式选择 开关, 按照长途行驶模式行驶及控制发电机组。
进一步, 在长途行驶模式下, 开启发电机组补充电能, 电池电量高于电池的荷电 状态低限阀值 S2。 当电池电量消耗到低于 S2时, 驱动电机进入功率限制模式。
所述功率限制模式为限制驱动电机的最大输出功率。
本发明以整车控制器为主体, 通过检测各个子系统参数信号来给发电机组控制器、 驱动电机控制器等子系统相应的控制信号, 从而实现对发电机组的最优控制。
本发明提供的发电机组工作模式选择开关和两种行驶模式下的控制方法, 控制简 单、 易于实现, 能够合理充分的发挥发电机组作为储备动力源的作用, 提高了整车驾 驶性能, 最大限度的延长了车辆的续驶里程。 附图说明
图 1为电机控制策略流程图;
图 2为短途行驶模式发电机组控制策略示意图;
图 3为长途行驶模式发电机组控制策略示意图。 具体实施方式
下面结合附图 1一图 3对本发明的技术方案进行具体描述。
图 1 为电机控制策略流程图。 如图 1所示, 电动汽车发电机组控制方法主要涉及 到发电机组及控制器、 驱动电机及控制器、 动力电池及控制器、 整车控制器、 行驶模 式选择开关等关键部件。 车辆启动时, 驾驶员根据行程计划选择行驶模式, 电池控制 器检测当时电池的实际电量状态, 整车控制器根据行驶模式选择开关信号控制车辆按 照指定的模式运行, 行驶过程中整车控制器根据电池电量状态值、 车速信号来控制发 电机组是否工作和是否要对驱动电机进行功率限制并给相应控制器发出控制信号。 发 电机组控制器根据车辆状态调节发电机组的实际输出功率并控制发电机组的发动机工 作在最高效区域。
本发明的主要功能和控制方法如下:
行驶模式选择功能:
车载动力电池一次行驶里程为 D km, 驾驶员根据行程计划预估计当日当次的总行 驶里程 L km, 当 L<D时表明当次单独依靠动力电池储存的电能就可以满足当次的行 驶要求, 当次全程可能都不需要启用储备动力源一一发电机组, 从而判断此次应该按 照图 2所示的短途行驶模式行驶控制发电机组。
相反当次总行驶里程 L>D时, 表明此次的行驶里程会比较长, 需要在行驶途中动 用发电机组发电补充电能, 延长续驶里程。 同时为了避免驱动系统因电池电量低而进 入功率限制行驶模式, 影响整车行驶性能, 需要发电机组一开始就要开启发电。 所以 此次要按长途行驶模式行驶控制发电机组。 需要按下长途行驶模式选择开关。
图 2为短途行驶模式发电机组控制策略示意图。 如图 2所示, 短途行驶模式控制 方法包括: 图 2中, S 1是电池荷电状态高限阀值; S2是电池的荷电状态低限阀值。 在短途行驶模式下, 车辆优先使用从电网获得的电能, 正常情况下当次行驶在图 1 中 0— tl阶段内就可以完成, 整个行程发电机组都不用工作; 特殊情况下实际行驶里程大 于当初预估计值 L, 电池电量已经消耗到低于荷电状态低限阀值 S2, 此时就要求开启 发动机并使驱动电机进入功率限制行驶模式, 限制电机最大输出功率, 此时发电机组 的功率与整车消耗的需求功率平衡, 电池电量处于保持阶段 tl t2, 一直维持到目的 地。 t2 15为停车、 再次充电阶段。
图 3为长途行驶模式发电机组控制策略示意图。 如图 3所示, 长途行驶模式控制 方法包括: 在这种模式下, 要求及时开启发电机组补充电能, 让电池电量尽可能的长 时间维持在较高水平, 大于荷电状态低限阀值 S2, 尽量避免驱动系统进入功率限制模 式, 影响驾驶性能。 此次行驶要求在 0— tl阶段内完成。 当电池电量已经消耗到了 S2 时, 驱动系统进入功率限制模式(限制电机最大输出功率), 此时发电机组的功率与整 车消耗的需求功率平衡, 电池电量处于保持阶段 tl t2, 到达 t2时刻表明此时燃油耗 尽, 必须停车充电或补充燃料。

Claims

权利要求书
1、 一种电动汽车发电机组控制方法, 其特征在于: 包括发电机组及控制器、 驱动 电机及控制器、 动力电池及控制器、 整车控制器以及行驶模式选择开关, 车辆启动时, 根据行程计划选择行驶模式, 电池控制器检测当时电池的实际电量状态, 整车控制器 根据行驶模式选择开关信号控制车辆按照指定的模式运行, 行驶过程中整车控制器根 据电池电量状态值、 车速信号来控制发电机组是否工作和是否要对驱动电机进行功率 限制并给相应控制器发出控制信号。
2、 根据权利要求 1所述的控制方法, 其特征在于: 发电机组控制器根据车辆状态 调节发电机组的实际输出功率并控制发电机组的发动机工作在最高效区域。
3、 根据权利要求 1或 2任一项所述的控制方法, 其特征在于: 当预计行驶里程小 于车载动力电池续驶里程时, 采用短途行驶模式, 当次全程都不启用作为储备动力源 的所述发电机组。
4、 根据权利要求 3所述的控制方法, 其特征在于: 当实际行驶里程大于预计行驶 里程, 且电池电量消耗到低于电池的荷电状态低限阀值 S2时, 开启发动机组并使驱动 电机进入功率限制模式。
5、 根据权利要求 1或 2任一项所述的控制方法, 其特征在于: 当预计行驶里程大 于车载动力电池续驶里程时, 按下长途行驶模式选择开关, 按照长途行驶模式行驶及 控制发电机组。
6、 根据权利要求 5所述的控制方法, 其特征在于: 在长途行驶模式下, 开启发电 机组补充电能, 电池电量高于电池的荷电状态低限阀值 S2。
7、 根据权利要求 6所述的控制方法, 其特征在于: 当电池电量消耗到低于荷电状 态低限阀值 S2时, 驱动电机进入功率限制模式。
8、 根据权利要求 4-7任一项所述的控制方法, 其特征在于: 所述功率限制模式为 限制驱动电机的最大输出功率。
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