公开(公告)号：US3870954A

公开(公告)日：1975-03-11

申请号：US40480073

申请日：1973-10-09

Applicant: RCA CORP

Inventor： HANSON RICHARD ERIC ,  FINEMAN HOWARD EISEN

IPC: F02N11/10 ,  G01R19/165 ,  G01R31/00

CPC classification number: G01R19/16585 ,  F02N11/10 ,  G01R31/006

Abstract: A starter system fault detector includes means for detecting the initial peak current waveform of a starter motor and related components under test. A reference peak of the waveform is provided by either a fixed reference signal or a dynamic reference signal derived from and related to the maximum magnitude of the initial peak current waveform. In one embodiment the fault detector provides a fault indication if the magnitude of the initial current waveform signal fails to exceed the magnitude of the fixed reference signal during a predetermined time period. In another embodiment the fault detector provides a fault indication if the magnitude of the dynamic reference signal fails to exceed the magnitude of the initial current waveform recovery slope during a predetermined time period.

Abstract translation: 起动器系统故障检测器包括用于检测起动电动机和相关组件的初始峰值电流波形的装置。 波形的参考峰值由固定参考信号或从初始峰值电流波形的最大幅度导出和相关的动态参考信号提供。 在一个实施例中，如果在预定时间段期间初始电流波形信号的幅度不能超过固定参考信号的幅度，则故障检测器提供故障指示。 在另一个实施例中，如果动态参考信号的幅度在预定时间段内不能超过初始电流波形恢复斜率的幅度，则故障检测器提供故障指示。