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公开(公告)号：US20090255323A1
公开(公告)日：2009-10-15
申请号：US12101354
申请日：2008-04-11
IPC分类号： G01N19/10
CPC分类号： H01M8/04119 , H01M8/04007 , H01M8/2475
摘要： A humidity sensing device for determining the amount of humidity in at least one primary fluid stream that is passed to a fuel cell stack is provided. The sensing device includes an outer housing and an inner housing. The outer housing is positioned within at least one conduit such that the outer housing and the conduit coact with each other to generate at least one secondary fluid stream from the primary fluid stream. The inner housing is positioned within the outer housing such that the inner housing is configured to receive the secondary fluid stream and to measure an amount of water present in the secondary fluid stream to determine the amount of humidity in the primary fluid stream.
摘要翻译： 提供一种用于确定传递到燃料电池堆的至少一个主流体流中的湿度量的湿度感测装置。 感测装置包括外壳和内壳。 外壳体定位在至少一个管道内，使得外壳体和导管彼此共同作用以从主流体流产生至少一个次流体流。 内壳体定位在外壳体内，使得内壳体构造成接收第二流体流并且测量存在于次流体流中的水量以确定主流体流中的湿度。
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公开(公告)号：US07946151B2
公开(公告)日：2011-05-24
申请号：US12101354
申请日：2008-04-11
IPC分类号： G01N19/00
CPC分类号： H01M8/04119 , H01M8/04007 , H01M8/2475
摘要： A humidity sensing device for determining the amount of humidity in at least one primary fluid stream that is passed to a fuel cell stack is provided. The sensing device includes an outer housing and an inner housing. The outer housing is positioned within at least one conduit such that the outer housing and the conduit coact with each other to generate at least one secondary fluid stream from the primary fluid stream. The inner housing is positioned within the outer housing such that the inner housing is configured to receive the secondary fluid stream and to measure an amount of water present in the secondary fluid stream to determine the amount of humidity in the primary fluid stream.
摘要翻译： 提供一种用于确定传递到燃料电池堆的至少一个主流体流中的湿度量的湿度感测装置。 感测装置包括外壳和内壳。 外壳体定位在至少一个管道内，使得外壳体和导管彼此共同作用以从主流体流产生至少一个次流体流。 内壳体定位在外壳体内，使得内壳体构造成接收第二流体流并且测量存在于次流体流中的水量以确定主流体流中的湿度。
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公开(公告)号：US20100262301A1
公开(公告)日：2010-10-14
申请号：US12421846
申请日：2009-04-10
CPC分类号： F01P7/164 , B60K6/405 , B60K6/48 , F01P7/04 , F01P11/18 , F01P2025/13 , F01P2025/36 , Y02T10/6221
摘要： In an exemplary embodiment, a method to control excessive temperature changes in a coolant circuit includes providing a coolant circuit including a bypass flow pathway bypassing a heat exchanger, said coolant circuit at an elevated operating temperature; providing an adjustable coolant flow through said bypass flow pathway and said heat exchanger; providing a coolant pump in said coolant circuit; determining a temperature change in said coolant circuit in response to initiating a coolant flow from said heat exchanger into said coolant circuit, said temperature change greater than predetermined limit; and in response to said determined temperature change, adjusting at least one or more of said coolant pump speed and said coolant flow to maintain said coolant circuit within a predetermined temperature range.
摘要翻译： 在一个示例性实施例中，一种控制冷却剂回路中过度温度变化的方法包括提供冷却剂回路，该冷却剂回路包括旁路流路，旁路流动路径旁路换热器，所述冷却剂回路在升高的工作温度下; 提供通过所述旁路流动路径和所述热交换器的可调冷却剂流; 在所述冷却剂回路中提供冷却剂泵; 响应于启动从所述热交换器进入所述冷却剂回路的冷却剂流而确定所述冷却剂回路中的温度变化，所述温度变化大于预定极限; 并且响应于所述确定的温度变化，调节所述冷却剂泵速度和所述冷却剂流中的至少一个或多个，以将所述冷却剂回路保持在预定温度范围内。
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公开(公告)号：US20140034741A1
公开(公告)日：2014-02-06
申请号：US13566593
申请日：2012-08-03
IPC分类号： G05D23/00
CPC分类号： F01P7/167 , F01P2025/33
摘要： A system and method for operating a device at a desired temperature is described. In one example, current supplied to a heater that melts a wax medium or material controlling flow through a valve is adjusted to reduce valve opening and closing delay. The system and method may improve device temperature control, thereby reducing device emissions, enhancing device performance, and improving device durability.
摘要翻译： 描述用于在期望温度下操作设备的系统和方法。 在一个实例中，调节供应到熔化蜡介质的加热器或控制通过阀的流动的材料的电流，以减少开阀和关闭延迟。 该系统和方法可以改善器件温度控制，从而减少器件发射，提高器件性能，提高器件耐久性。
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公开(公告)号：US08104435B2
公开(公告)日：2012-01-31
申请号：US12766762
申请日：2010-04-23
申请人： William Samuel Schwartz , Allan Roy Gale , Dinakara Karanth , Steven James Parks , Garrett O'Donohue
发明人： William Samuel Schwartz , Allan Roy Gale , Dinakara Karanth , Steven James Parks , Garrett O'Donohue
IPC分类号： F01P7/02
摘要： Methods and systems are provided for reducing aerodynamic drag on a moving vehicle. One example method comprises, during a first vehicle moving condition, operating the cooling fan, and during a second vehicle moving condition, selectively applying a braking torque on the fan.
摘要翻译： 提供了用于减少移动车辆上的气动阻力的方法和系统。 一个示例性方法包括在第一车辆移动状态期间操作冷却风扇，并且在第二车辆移动状态期间，选择性地对风扇施加制动转矩。
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公开(公告)号：US20110132292A1
公开(公告)日：2011-06-09
申请号：US12766762
申请日：2010-04-23
申请人： William Samuel Schwartz , Allan Roy Gale , Dinakara Karanth , Steven James Parks , Garrett O'Donohue
发明人： William Samuel Schwartz , Allan Roy Gale , Dinakara Karanth , Steven James Parks , Garrett O'Donohue
摘要： Methods and systems are provided for reducing aerodynamic drag on a moving vehicle. One example method comprises, during a first vehicle moving condition, operating the cooling fan, and during a second vehicle moving condition, selectively applying a braking torque on the fan.
摘要翻译： 提供了用于减少移动车辆上的气动阻力的方法和系统。 一个示例性方法包括在第一车辆移动状态期间操作冷却风扇，并且在第二车辆移动状态期间，选择性地对风扇施加制动转矩。
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公开(公告)号：US09719407B2
公开(公告)日：2017-08-01
申请号：US13566593
申请日：2012-08-03
CPC分类号： F01P7/167 , F01P2025/33
摘要： A method for operating a device at a desired temperature is described. In one example, current supplied to a heater that melts a wax medium or material controlling flow through a valve is adjusted to reduce valve opening and closing delay. The method may improve device temperature control, thereby reducing device emissions, enhancing device performance, and improving device durability.
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公开(公告)号：US08997847B2
公开(公告)日：2015-04-07
申请号：US12879630
申请日：2010-09-10
摘要： A system and method for controlling cooling an engine involve an engine coolant circuit with a radiator and an engine, a fan and a coolant pump are provided. The fan and pump may be electrically driven, driven by a variable speed clutch, hydraulically driven, or driven by some other actively controllable means. When an increase in heat transfer rate is indicated, the fan speed or the coolant pump speed may be increased. The choice of increasing the fan speed or increasing the pump speed is determined so that the power consumed is minimized. dQ/dP, the gradient in heat transfer rate to power, is determined for both the fan and the pump at the present operating condition. The one with the higher gradient is the one that is commanded to increase speed.
摘要翻译： 用于控制发动机冷却的系统和方法包括具有散热器和发动机，风扇和冷却剂泵的发动机冷却剂回路。 风扇和泵可以由电动驱动，由可变速离合器驱动，液压驱动或由其它一些可主动控制的装置驱动。 当指示传热速率的增加时，可以增加风扇速度或冷却剂泵速度。 确定增加风扇速度或提高泵速度的选择，使得消耗的功率被最小化。 dQ / dP，在当前工作条件下，对于风扇和泵都确定传热速率对功率的梯度。 具有较高梯度的那个是被命令增加速度的那个。
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公开(公告)号：US08215381B2
公开(公告)日：2012-07-10
申请号：US12421846
申请日：2009-04-10
IPC分类号： G05D23/00 , B60H1/00 , B60H1/03 , B60H1/22 , F02B29/04 , F01P7/02 , F01P7/14 , F24J3/00 , G05D7/00 , G05D11/00
CPC分类号： F01P7/164 , B60K6/405 , B60K6/48 , F01P7/04 , F01P11/18 , F01P2025/13 , F01P2025/36 , Y02T10/6221
摘要： In an exemplary embodiment, a method to control excessive temperature changes in a coolant circuit includes providing a coolant circuit including a bypass flow pathway bypassing a heat exchanger, said coolant circuit at an elevated operating temperature; providing an adjustable coolant flow through said bypass flow pathway and said heat exchanger; providing a coolant pump in said coolant circuit; determining a temperature change in said coolant circuit in response to initiating a coolant flow from said heat exchanger into said coolant circuit, said temperature change greater than a predetermined limit; and in response to said determined temperature change, adjusting at least one or more of said coolant pump speed and said coolant flow to maintain said coolant circuit within a predetermined temperature range.
摘要翻译： 在一个示例性实施例中，一种控制冷却剂回路中过度温度变化的方法包括提供冷却剂回路，该冷却剂回路包括旁路流路，旁路流动路径旁路换热器，所述冷却剂回路在升高的工作温度下; 提供通过所述旁路流动路径和所述热交换器的可调冷却剂流; 在所述冷却剂回路中提供冷却剂泵; 响应于启动从所述热交换器进入所述冷却剂回路的冷却剂流量，确定所述冷却剂回路中的温度变化，所述温度变化大于预定极限; 并且响应于所述确定的温度变化，调节所述冷却剂泵速度和所述冷却剂流中的至少一个或多个，以将所述冷却剂回路保持在预定温度范围内。
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公开(公告)号：US20120061069A1
公开(公告)日：2012-03-15
申请号：US12879630
申请日：2010-09-10
摘要： In an engine coolant circuit with a radiator and an engine, a fan and a coolant pump may be provided. The fan and pump may be electrically driven, driven by a variable speed clutch, hydraulically driven, or driven by some other actively controllable means. When an increase in heat transfer rate is indicated, the fan speed or the coolant pump speed may be increased. According to an embodiment of the disclosure, the choice of increasing the fan speed or increasing the pump speed is determined so that the power consumed is minimized. The broad concept is that dQ/dP, the gradient in heat transfer rate to power, is determined for both the fan and the pump at the present operating condition. The one with the higher gradient is the one that is commanded to increase speed.
摘要翻译： 在具有散热器和发动机的发动机冷却剂回路中，可以设置风扇和冷却剂泵。 风扇和泵可以由电动驱动，由可变速离合器驱动，液压驱动或由其它一些可主动控制的装置驱动。 当指示传热速率的增加时，可以增加风扇速度或冷却剂泵速度。 根据本公开的实施例，确定增加风扇速度或提高泵速度的选择，使得消耗的功率被最小化。 广泛的概念是在目前的运行条件下，对于风扇和泵都确定了dQ / dP，传热速率对功率的梯度。 具有较高梯度的那个是被命令增加速度的那个。
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