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    • 2. 发明申请
    • METHOD AND APPARATUS FOR DIAGNOSING A MOTOR CONTROL CIRCUIT IN A HYBRID VEHICLE
    • 用于诊断混合动力汽车控制电路的方法和装置
    • US20100213948A1
    • 2010-08-26
    • US12392603
    • 2009-02-25
    • Harry J. BauerWei D. WangBon Ho BaeWilliam R. Cawthorne
    • Harry J. BauerWei D. WangBon Ho BaeWilliam R. Cawthorne
    • G01R31/00
    • B60K6/485B60L3/0023Y02T10/6226
    • A hybrid electric vehicle (HEV) has an algorithm for executing a method for diagnosing a high-voltage (HV) fault condition aboard the HEV. The HEV includes a high-voltage (HV) battery, an auxiliary power module (APM), a power inverter module (PIM), and a three-phase motor/generator unit (MGU). A controller executes the method to thereby measure a DC output current from the HV battery, a DC inlet current into the APM, and a pair of AC phase currents in the MGU. The method further includes calculating a DC inlet current into the PIM using the AC phase currents, diagnosing the HV fault condition using the DC output currents and the DC inlet currents, and executing a control action in response to the diagnosed condition. The method can include shutting off the APM to determine whether the APM is the root cause of the HV fault condition.
    • 混合电动车辆(HEV)具有执行用于诊断HEV上的高压(HV)故障状况的方法的算法。 HEV包括高压(HV)电池,辅助电源模块(APM),电力逆变器模块(PIM)和三相电动机/发电机组件(MGU)。 控制器执行该方法,从而测量来自HV电池的直流输出电流,进入APM的直流入口电流和MGU中的一对AC相电流。 该方法还包括使用AC相电流计算进入PIM的直流入口电流,使用DC输出电流和DC入口电流诊断HV故障状况,以及响应于诊断条件执行控制动作。 该方法可以包括关闭APM以确定APM是否是HV故障状态的根本原因。
    • 3. 发明授权
    • Temperature compensated magnetoresistive position sensor
    • 温度补偿磁阻位置传感器
    • US5351003A
    • 1994-09-27
    • US42228
    • 1993-04-02
    • Harry J. BauerRonald T. Golebiewski
    • Harry J. BauerRonald T. Golebiewski
    • G01B7/00G01D3/036G01D5/14G01D5/16G01R33/09G01B7/14G01D5/18G01R33/06
    • G01D5/142G01B7/00G01D3/0365G01R33/09
    • A temperature compensated magnetoresistive position sensor is disclosed. The sensor includes two magnetoresistor (MR) elements biased with magnetic flux from a permanent magnet, and connected electrically in series with a precision resistor and a voltage source. A magnetically permeable slide bar is movable to positions within a defined range adjacent to the sensor for varying the magnetic flux and changing the resistance of each MR element, while maintaining the sum of the resistances of the MR elements essentially constant. For a given slide bar position, the voltage drops appearing across the precision resistor and the MR elements are processed by a computer to determine the value for a resistance ratio, where the resistance ratio equals the resistance of one of the MR elements divided by the sum of the resistances of both MR elements at the sensor operating temperature. The determined value for the resistance ratio is transformed based upon the sum of the MR element resistances to obtain a compensated resistance ratio value that would occur for the same slide bar position at room temperature. The compensated resistance ratio value is then used in conjunction with the known behavior of the sensor at room temperature to provide an accurate indication of the slide bar position that is essentially unaffected by the influenced of sensor operating temperature. A correction term can also be added to the compensated resistance ratio value to account for any mechanical offset associated with sensor component tolerances.
    • 公开了一种温度补偿磁阻位置传感器。 该传感器包括两个由永久磁铁偏磁的磁阻(MR)元件,并与精密电阻和电压源串联电连接。 磁导滑动杆可移动到与传感器相邻的限定范围内的位置,用于改变磁通量并改变每个MR元件的电阻,同时保持MR元件的电阻之和基本恒定。 对于给定的滑块位置,精密电阻器和MR元件之间出现的电压降由计算机处理以确定电阻比的值,其中电阻比等于MR元素之一的电阻除以和 在传感器工作温度下两个MR元件的电阻。 电阻比的确定值基于MR元件电阻的总和而变换,以获得在室温下相同滑杆位置发生的补偿电阻比值。 然后将补偿的电阻比值与室温下传感器的已知行为结合使用,以提供基本上不受传感器工作温度影响的滑杆位置的精确指示。 还可以将补偿项加到补偿电阻比值上,以考虑与传感器元件公差相关的任何机械偏移。