公开(公告)号：WO1981003402A1

公开(公告)日：1981-11-26

申请号：PCT/US1981000570

申请日：1981-04-29

Applicant: MOTOROLA INC

Inventor： MOTOROLA INC ,  SIEVERS K ,  MORTONSON R

IPC: H02J07/14

CPC classification number: G01R31/007 ,  G01R31/343 ,  H02J7/1461

Abstract: Detector (28) monitoring the voltage ripple in the rectified electrical output signal of an alternator (22) in a multiphase alternator battery charging system. A circuit monitors the undulating alternator output signal and produces a signal level in response. To correct the detector operation for various magnetic phenomena present in the alternator, a first circuit measures the rotational speed of the rotor and produces a proportional signal. A second circuit determines the excitation current supplied to the field coil. The measurement and determination are separately weighted and combined to form a corrected comparison threshold value. A variable threshold circuit combines the signal proportional to the rotational speed of the rotor and the determined field coil excitation current to produce a combined signal level. Comparison means compare the signal level from the monitored alternator output signal with the combined signal level and produce an output signal level indicative of the detection of a voltage ripple in excess of the combined signal level. The output signal is corrected for the effects of significant alternator performance characteristics.

Abstract translation: 检测器（28）监测多相交流发电机电池充电系统中交流发电机（22）的整流电输出信号中的电压纹波。 电路监视波动交流发电机输出信号并产生响应的信号电平。 为了校正交流发电机中存在的各种磁现象的检测器操作，第一电路测量转子的转速并产生比例信号。 第二电路确定提供给励磁线圈的励磁电流。 测量和确定被单独加权并组合以形成校正的比较阈值。 可变阈值电路将与转子的转速成比例的信号和确定的励磁线圈励磁电流组合以产生组合的信号电平。 比较装置将来自监测的交流发电机输出信号的信号电平与组合信号电平进行比较，并产生指示超过组合信号电平的电压纹波检测的输出信号电平。 对于显着的交流发电机性能特征的影响，输出信号被校正。

公开(公告)号：WO1981003403A1

公开(公告)日：1981-11-26

申请号：PCT/US1981000571

申请日：1981-04-29

Applicant: MOTOROLA INC

Inventor： MOTOROLA INC ,  MORTONSON R

IPC: H02J07/14

CPC classification number: G01R31/346 ,  G01R31/343 ,  H02J7/1461 ,  Y10S320/13

Abstract: Detector (94) monitoring the operational status of the field coil circuit in a multiphase alternator (22) and voltage regulator battery charging system. Circuit means (94) monitor a first signal at a first terminal (At) of the field coil circuit. Means (246) generate sampling intervals on a repetitive basis. Circuit means (246) interrupt the excitation signal supplied to the field coil by the voltage regulator during the sampling intervals. A second signal is measured during sampling intervals at a second terminal (field) of the field coil circuit. Comparator means (616) compare the first and second signals and produce an output signal when the comparison varies from a predetermined value.

Abstract translation: 检测器（94）监视多相交流发电机（22）和调压器电池充电系统中的励磁线圈电路的操作状态。 电路装置（94）监视励磁线圈电路的第一端（At）处的第一信号。 手段（246）在重复的基础上产生采样间隔。 电路装置（246）在采样间隔期间通过电压调节器中断提供给励磁线圈的激励信号。 在场线圈电路的第二端（场）处的采样间隔期间测量第二信号。 当比较值从预定值变化时，比较器装置（616）比较第一和第二信号并产生输出信号。