FUEL CELL SYSTEM INCLUDING DIAGNOSTIC TECHNIQUE FOR UNBALANCED COMPRESSOR
    2.
    发明申请
    FUEL CELL SYSTEM INCLUDING DIAGNOSTIC TECHNIQUE FOR UNBALANCED COMPRESSOR 有权
    燃料电池系统,包括不平衡压缩机的诊断技术

    公开(公告)号:US20140242491A1

    公开(公告)日:2014-08-28

    申请号:US14269922

    申请日:2014-05-05

    Abstract: A diagnostic system for determining whether a rotor shaft of a compressor is unbalanced. The compressor includes a displacement sensor that measures the displacement of the rotor shaft as it is rotating. The sensor dynamic frequency signal is sent to a bandpass filter that filters out an eigen-frequency frequency that is a function of shaft elasticity and rotor dynamics. The filtered frequency signal is then rectified by a rectifier to make the filtered frequency signal positive. The rectified signal is then passed through a low pass filter that converts the rectified signal to a DC signal. The DC signal is then sent to a controller that determines if the amplitude of the signal is above a predetermined threshold, which indicates a problem with the balance of the compressor.

    Abstract translation: 用于确定压缩机的转子轴是否不平衡的诊断​​系统。 压缩机包括位移传感器,其测量转子轴在旋转时的位移。 传感器动态频率信号被发送到带通滤波器,其滤除作为轴弹性和转子动力学的函数的本征频率频率。 滤波后的频率信号由整流器整流,使得滤波后的频率信号为正。 整流后的信号然后通过一个低通滤波器,将滤波后的信号转换为直流信号。 然后将DC信号发送到控制器,该控制器确定信号的振幅是否高于预定阈值,这表示压缩机的平衡存在问题。

    Fuel cell system including diagnostic technique for unbalanced compressor
    3.
    发明授权
    Fuel cell system including diagnostic technique for unbalanced compressor 有权
    燃料电池系统包括不平衡压缩机的诊断技术

    公开(公告)号:US09331350B2

    公开(公告)日:2016-05-03

    申请号:US14269922

    申请日:2014-05-05

    Abstract: A diagnostic system for determining whether a rotor shaft of a compressor is unbalanced. The compressor includes a displacement sensor that measures the displacement of the rotor shaft as it is rotating. The sensor dynamic frequency signal is sent to a bandpass filter that filters out an eigen-frequency frequency that is a function of shaft elasticity and rotor dynamics. The filtered frequency signal is then rectified by a rectifier to make the filtered frequency signal positive. The rectified signal is then passed through a low pass filter that converts the rectified signal to a DC signal. The DC signal is then sent to a controller that determines if the amplitude of the signal is above a predetermined threshold, which indicates a problem with the balance of the compressor.

    Abstract translation: 用于确定压缩机的转子轴是否不平衡的诊断​​系统。 压缩机包括位移传感器,其测量转子轴在旋转时的位移。 传感器动态频率信号被发送到带通滤波器,其滤除作为轴弹性和转子动力学的函数的本征频率频率。 滤波后的频率信号由整流器整流,使得滤波后的频率信号为正。 整流后的信号然后通过一个低通滤波器,将滤波后的信号转换为直流信号。 然后将DC信号发送到控制器,该控制器确定信号的振幅是否高于预定阈值,这表示压缩机的平衡存在问题。

    METHOD FOR THE PLANNING OF TRAJECTORIES
    6.
    发明申请

    公开(公告)号:US20180334188A1

    公开(公告)日:2018-11-22

    申请号:US15981379

    申请日:2018-05-16

    Inventor: Oliver Maier

    Abstract: A method and system is disclosed to operate a vehicle pulling a trailer through a cornering maneuver is disclosed. An outer, concave edge and an inner, convex edge of a negotiable road are identified. A path of travel is determined for an inner wheel of the trailer of the vehicle. A first directrix is determined on which a guide point of the vehicle must move in order to pull the inner wheel along the determined path of travel. A second directrix is determined, on which a outer, front wheel of the vehicle must move in order to pull the guide point along the first directrix. A concave-side distance between the outer, front wheel and the concave edge is estimated. When the difference between the distance on concave-side and convex-side exceeds a threshold value, the convex-side distance is adjusted to be closer to the concave-side distance.

    Systems and methods for controlling cabin heating in fuel cell vehicles
    7.
    发明授权
    Systems and methods for controlling cabin heating in fuel cell vehicles 有权
    用于控制燃料电池车辆中的客舱加热的系统和方法

    公开(公告)号:US09385382B2

    公开(公告)日:2016-07-05

    申请号:US13914334

    申请日:2013-06-10

    Abstract: System and methods for controlling and optimizing coolant system parameters in a fuel cell system to obtain a requested cabin temperature in a fuel cell vehicle are presented. A method for managing a temperature in a vehicle cabin may include receiving an indication relating to a desired vehicle cabin temperature and a plurality of measured operating parameters. Based on the measured operating parameters, a projected output temperature of a cabin heat exchanger may be estimated. A determination may be made that the projected output temperature of the cabin heat exchanger is less than the indication. Based on the determination a fuel cell coolant parameter may be adjusted.

    Abstract translation: 提出了用于控制和优化燃料电池系统中的冷却剂系统参数以获得燃料电池车辆中所要求的舱室温度的系统和方法。 用于管理车厢内的温度的方法可以包括接收与期望的车厢温度和多个测量的操作参数有关的指示。 基于测量的操作参数,可以估计客舱热交换器的预计输出温度。 可以确定机舱热交换器的预计输出温度小于指示。 基于该确定可以调节燃料电池冷却剂参数。

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