Method for optimized design and operation of battery cooling system in electric vehicles
    1.
    发明授权
    Method for optimized design and operation of battery cooling system in electric vehicles 有权
    电动汽车电池冷却系统设计与运行优化的方法

    公开(公告)号:US08344697B2

    公开(公告)日:2013-01-01

    申请号:US12848702

    申请日:2010-08-02

    IPC分类号: H01M10/44 H01M10/46

    摘要: A method and system for controlling temperature in an electric vehicle battery pack such that battery pack longevity is preserved, while vehicle driving range is maximized. A controller prescribes a maximum allowable temperature in the battery pack as a function of state of charge, reflecting evidence that lithium-ion battery pack temperatures can be allowed to increase as state of charge decreases, without having a detrimental effect on battery pack life. During vehicle driving, battery pack temperature is allowed to increase with decreasing state of charge, and a cooling system is only used as necessary to maintain temperature beneath the increasing maximum level. The decreased usage of the cooling system reduces energy consumption and increases vehicle driving range. During charging operations, the cooling system must remove enough heat from the battery pack to maintain temperatures below a decreasing maximum, but this has no impact on driving range.

    摘要翻译: 一种用于控制电动车辆电池组中的温度的方法和系统,使得在车辆行驶范围最大化的同时保持电池组的寿命。 控制器根据充电状态规定电池组中的最大允许温度,反映充电状态下锂离子电池组件温度可能会升高的证据,而不会对电池组寿命产生不利影响。 在车辆驾驶期间,电池组的温度随着充电状态的减少而增加,并且仅在必要时使用冷却系统以将温度维持在增加的最大水平以下。 减少冷却系统的使用量降低了能源消耗,并增加了车辆行驶范围。 在充电操作期间,冷却系统必须从电池组中除去足够的热量,以保持温度低于最大值,但这对驱动范围没有影响。

    Apparatus for optimized cooling of a drive unit and a fuel cell in a fuel cell vehicle
    2.
    发明授权
    Apparatus for optimized cooling of a drive unit and a fuel cell in a fuel cell vehicle 有权
    用于燃料电池车辆中的驱动单元和燃料电池的优化冷却的装置

    公开(公告)号:US08263279B2

    公开(公告)日:2012-09-11

    申请号:US12034169

    申请日:2008-02-20

    IPC分类号: H01M8/04

    摘要: A system for cooling a fuel cell stack and a drive unit in a fuel cell vehicle is disclosed, wherein the system includes a drive unit and a fuel cell stack. An oil cooling loop for the drive unit includes a three way valve, a liquid to liquid heat exchanger, and a pump. The liquid to liquid heat exchanger may be used to transfer drive unit off heat into the stack coolant loop. By not using an oil to air heat exchanger overall heat exchanger arrangement air side pressure drop can be minimized and airflow increased. The three way valve allows decoupling of the cooling loops if needed to inhibit negative impact on the fuel cell stack.

    摘要翻译: 公开了一种用于冷却燃料电池车辆中的燃料电池堆和驱动单元的系统,其中该系统包括驱动单元和燃料电池堆。 用于驱动单元的油冷循环包括三通阀,液 - 液换热器和泵。 液体与液体热交换器可用于将驱动单元传递到堆叠冷却剂回路中。 通过不使用油对空气热交换器整体热交换器布置,空气侧压降可以最小化并且气流增加。 如果需要,三通阀允许冷却回路的分离,以防止对燃料电池堆的负面影响。

    METHOD FOR OPTIMIZED DESIGN AND OPERATION OF BATTERY COOLING SYSTEM IN ELECTRIC VEHICLES
    3.
    发明申请
    METHOD FOR OPTIMIZED DESIGN AND OPERATION OF BATTERY COOLING SYSTEM IN ELECTRIC VEHICLES 有权
    电动汽车电池冷却系统优化设计与运行方法

    公开(公告)号:US20120025762A1

    公开(公告)日:2012-02-02

    申请号:US12848702

    申请日:2010-08-02

    IPC分类号: H02J7/00 G01N27/416 H02J7/04

    摘要: A method and system for controlling temperature in an electric vehicle battery pack such that battery pack longevity is preserved, while vehicle driving range is maximized. A controller prescribes a maximum allowable temperature in the battery pack as a function of state of charge, reflecting evidence that lithium-ion battery pack temperatures can be allowed to increase as state of charge decreases, without having a detrimental effect on battery pack life. During vehicle driving, battery pack temperature is allowed to increase with decreasing state of charge, and a cooling system is only used as necessary to maintain temperature beneath the increasing maximum level. The decreased usage of the cooling system reduces energy consumption and increases vehicle driving range. During charging operations, the cooling system must remove enough heat from the battery pack to maintain temperatures below a decreasing maximum, but this has no impact on driving range.

    摘要翻译: 一种用于控制电动车辆电池组中的温度的方法和系统,使得在车辆行驶范围最大化的同时保持电池组的寿命。 控制器根据充电状态规定电池组中的最大允许温度,反映充电状态下锂离子电池组件温度可能会升高的证据,而不会对电池组寿命产生不利影响。 在车辆驾驶期间,电池组的温度随着充电状态的减少而增加,并且仅在必要时使用冷却系统以将温度维持在增加的最大水平以下。 减少冷却系统的使用量降低了能源消耗,并增加了车辆行驶范围。 在充电操作期间,冷却系统必须从电池组中除去足够的热量,以保持温度低于最大值,但这对驱动范围没有影响。

    APPARATUS FOR OPTIMIZED COOLING OF A DRIVE UNIT AND A FUEL CELL IN A FUEL CELL VEHICLE
    4.
    发明申请
    APPARATUS FOR OPTIMIZED COOLING OF A DRIVE UNIT AND A FUEL CELL IN A FUEL CELL VEHICLE 有权
    用于驱动单元和燃料电池车厢中的燃料电池的优化冷却装置

    公开(公告)号:US20090208782A1

    公开(公告)日:2009-08-20

    申请号:US12034169

    申请日:2008-02-20

    IPC分类号: H01M8/02

    摘要: A system for cooling a fuel cell stack and a drive unit in a fuel cell vehicle is disclosed, wherein the system includes a drive unit and a fuel cell stack. An oil cooling loop for the drive unit includes a three way valve, a liquid to liquid heat exchanger, and a pump. The liquid to liquid heat exchanger may be used to transfer drive unit off heat into the stack coolant loop. By not using an oil to air heat exchanger overall heat exchanger arrangement air side pressure drop can be minimized and airflow increased. The three way valve allows decoupling of the cooling loops if needed to inhibit negative impact on the fuel cell stack.

    摘要翻译: 公开了一种用于在燃料电池车辆中冷却燃料电池堆和驱动单元的系统,其中所述系统包括驱动单元和燃料电池堆。 用于驱动单元的油冷循环包括三通阀,液 - 液换热器和泵。 液体与液体热交换器可用于将驱动单元传递到堆叠冷却剂回路中。 通过不使用油对空气热交换器整体热交换器布置,空气侧压降可以最小化并且气流增加。 如果需要,三通阀允许冷却回路的分离,以防止对燃料电池堆的负面影响。

    METHOD FOR HIGH VOLTAGE BUS CONTROL IN FUEL CELL VEHICLES
    5.
    发明申请
    METHOD FOR HIGH VOLTAGE BUS CONTROL IN FUEL CELL VEHICLES 有权
    燃料电池车辆高压总线控制方法

    公开(公告)号:US20120025619A1

    公开(公告)日:2012-02-02

    申请号:US12844648

    申请日:2010-07-27

    IPC分类号: H02J4/00 H01M8/04

    摘要: A system and method for controlling the voltage on a high voltage bus in a fuel cell system in response to a failed high voltage battery. The method includes determining if the high voltage battery has failed, and disconnecting the battery from the high voltage bus in response to a failure. The method measures the voltage of the fuel cell stack by a DC boost circuit and converts the measured voltage to a voltage set-point value that sets the voltage on the high voltage bus, where the voltage set-point value changes as the measured voltage changes. A supervisory controller sets the media flow to the fuel cell stack and determines a minimum stack voltage limit value based on the stack maximum current draw that is used to determine a high voltage bus lower limit value.

    摘要翻译: 一种用于响应于故障的高电压电池来控制燃料电池系统中的高压总线上的电压的系统和方法。 该方法包括确定高压电池是否发生故障,以及响应于故障将电池与高电压总线断开连接。 该方法通过直流升压电路测量燃料电池堆的电压,并将测得的电压转换成设定高压母线上的电压的电压设定点值,其中电压设定值随着测量电压的变化而变化 。 监控控制器将介质流量设置到燃料电池堆,并且基于用于确定高压母线下限值的堆叠最大电流消耗来确定最小堆叠电压限制值。

    METHOD FOR REVISING A POLARIZATION CURVE THAT DEFINES THE CURRENT/VOLTAGE RELATIONSHIP OF A FUEL CELL STACK
    6.
    发明申请
    METHOD FOR REVISING A POLARIZATION CURVE THAT DEFINES THE CURRENT/VOLTAGE RELATIONSHIP OF A FUEL CELL STACK 有权
    修正燃料电池堆的电流/电压关系的极化曲线的修正方法

    公开(公告)号:US20100092817A1

    公开(公告)日:2010-04-15

    申请号:US12637501

    申请日:2009-12-14

    IPC分类号: H01M8/04

    摘要: A method for revising a reference polarization curve of a fuel cell stack that identifies the relationship between the voltage and the current of the stack over time. When the stack is operating at a low load where kinetic voltage losses of the stack dominate, a first adaptation value is revised as the difference between the actual stack voltage and the stack voltage of the reference polarization curve. When the stack is operating at higher loads where ohmic voltage losses of the stack dominate, a second adaptation value is revised as the difference between the actual stack voltage and the stack voltage of the reference polarization curve.

    摘要翻译: 一种用于修改燃料电池堆的参考极化曲线的方法,其识别堆叠随时间的电压和电流之间的关系。 当堆栈以堆叠的动态电压损失为主的低负载运行时,第一适配值被修改为实际堆叠电压与参考极化曲线的堆叠电压之间的差值。 当堆栈工作在堆叠的欧姆电压损耗主导的较高负载时,第二适配值被修改为实际堆叠电压和参考极化曲线的堆叠电压之间的差。

    APPARATUS FOR OPTIMIZED EXECUTION OF HEATING TASKS IN FUEL CELL VEHICLES
    7.
    发明申请
    APPARATUS FOR OPTIMIZED EXECUTION OF HEATING TASKS IN FUEL CELL VEHICLES 有权
    用于燃料电池车辆加热任务优化执行的装置

    公开(公告)号:US20090236436A1

    公开(公告)日:2009-09-24

    申请号:US12053979

    申请日:2008-03-24

    IPC分类号: B60H1/06 H01M8/04 F28D15/00

    摘要: A heating system for optimizing execution of heating tasks in a fuel cell vehicle is disclosed, the system including a stack coolant loop with a fuel cell stack, a primary pump, and a radiator module. A bypass coolant loop is disposed parallel with and is connected to the stack coolant loop between the fuel cell stack and the radiator module. The bypass loop including a cabin heat exchanger and a coolant heater, along with a secondary pump for pumping coolant through the heaters when desired.

    摘要翻译: 公开了一种用于优化燃料电池车辆中的加热任务执行的加热系统,该系统包括具有燃料电池堆,主泵和散热器模块的堆叠冷却剂回路。 旁路冷却剂回路与燃料电池堆和散热器模块之间的堆叠冷却剂回路平行并连接。 旁路回路包括机舱热交换器和冷却剂加热器,以及用于在需要时将冷却剂泵送通过加热器的次级泵。

    METHOD FOR MODEL BASED EXHAUST MIXING CONTROL IN A FUEL CELL APPLICATION
    8.
    发明申请
    METHOD FOR MODEL BASED EXHAUST MIXING CONTROL IN A FUEL CELL APPLICATION 有权
    燃料电池应用中基于模型的排气混合控制方法

    公开(公告)号:US20090117417A1

    公开(公告)日:2009-05-07

    申请号:US11936642

    申请日:2007-11-07

    IPC分类号: H01M8/04

    摘要: A system and method for controlling a bleed valve and a compressor in a fuel cell system during an anode exhaust gas bleed so as to maintain the concentration of hydrogen within a mixed cathode exhaust gas and anode gas below a predetermined percentage. The system uses a valve orifice model to calculate the flow rate of the anode exhaust gas through the bleed valve to identify how much airflow from the compressor is required to dilute the hydrogen in the anode gas to be below the predetermined percentage. The system also uses sensor inaccuracies and production tolerances in the valve orifice model to ensure that the concentration of hydrogen in the mixed anode and cathode exhaust gas is below the determined percentage.

    摘要翻译: 一种用于在阳极废气排放期间控制燃料电池系统中的排放阀和压缩机的系统和方法,以将混合阴极排气和阳极气体内的氢浓度保持在预定百分比以下。 该系统使用阀孔模型来计算通过排放阀的阳极废气的流量,以确定需要多少气流从压缩机中稀释,使阳极气体中的氢低于预定百分比。 该系统还使用阀孔模型中的传感器不准确度和生产公差,以确保混合阳极和阴极废气中的氢浓度低于确定的百分比。

    APPARATUS FOR A 12V HYBRID FUEL CELL VEHICLE
    9.
    发明申请
    APPARATUS FOR A 12V HYBRID FUEL CELL VEHICLE 审中-公开
    12V混合燃料电池车的装置

    公开(公告)号:US20110262824A1

    公开(公告)日:2011-10-27

    申请号:US12766412

    申请日:2010-04-23

    IPC分类号: H01M8/24

    摘要: A fuel cell system that does not include a high voltage battery in combination with a fuel cell stack. The fuel cell stack and a bi-directional power module are electrically coupled to a high voltage bus. A first larger capacity 12 volt battery is electrically coupled to the power module opposite to the high voltage bus and a second smaller capacity 12 volt battery is electrically coupled to the first 12 volt battery, where a diode is electrically coupled between the first and second 12 volt batteries and only allows current flow from the first 12 volt battery to the second 12 volt battery. 12 volt battery loads are electrically coupled to the second 12 volt battery.

    摘要翻译: 一种燃料电池系统,其不包括与燃料电池堆组合的高压电池。 燃料电池堆和双向电力模块电耦合到高压母线。 第一个较大容量的12伏特电池电耦合到与高电压总线相对的功率模块,而第二个较小容量的12伏特电池与第一个12伏电池电耦合,二极管电耦合在第一个和第二个12 电池只允许电流从第一个12伏电池流向第二个12伏电池。 12伏电池负载电耦合到第二个12伏电池。

    Method for revising a polarization curve that defines the current/voltage relationship of a fuel cell stack
    10.
    发明授权
    Method for revising a polarization curve that defines the current/voltage relationship of a fuel cell stack 有权
    修改限定燃料电池堆的电流/电压关系的极化曲线的方法

    公开(公告)号:US07879502B2

    公开(公告)日:2011-02-01

    申请号:US12637501

    申请日:2009-12-14

    IPC分类号: H01M8/04

    摘要: A method for revising a reference polarization curve of a fuel cell stack that identifies the relationship between the voltage and the current of the stack over time. When the stack is operating at a low load where kinetic voltage losses of the stack dominate, a first adaptation value is revised as the difference between the actual stack voltage and the stack voltage of the reference polarization curve. When the stack is operating at higher loads where ohmic voltage losses of the stack dominate, a second adaptation value is revised as the difference between the actual stack voltage and the stack voltage of the reference polarization curve.

    摘要翻译: 一种用于修改燃料电池堆的参考极化曲线的方法,其识别堆叠随时间的电压和电流之间的关系。 当堆栈以堆叠的动态电压损失为主的低负载运行时,第一适配值被修改为实际堆叠电压与参考极化曲线的堆叠电压之间的差值。 当堆栈工作在堆叠的欧姆电压损耗主导的较高负载时,第二适配值被修改为实际堆叠电压和参考极化曲线的堆叠电压之间的差。