公开(公告)号：US3898513A

公开(公告)日：1975-08-05

申请号：US37818873

申请日：1973-07-11

Applicant: BOSCH GMBH ROBERT

Inventor： KOPERNIK VIKTOR ,  STEINMANN HELMUT

IPC: H05B37/03 ,  B60Q11/00 ,  H01J1/60

CPC classification number: B60Q11/005

Abstract: To monitor current flowing through various load lines, typically to the supply lines for the lighting system of the vehicle (headlights, brake lights, position lights) each line has a ferrite core with approximately rectangular hysteresis characteristic threaded thereon, through which additionally a test signal wire and a read signal wire are threaded. The test signal wire is connected to an ac source, the read signal wire to an indicator lamp through an amplifier so that, when current flows through the supply line, the core will saturate and no ac will be transferred from the test signal wire to the read signal wire; upon interruption of current flow, for example due to burnout of a lamp, current will flow through the test indicator, typically a lamp, which will light indicating malfunction.

Abstract translation: 为了监测流经各种负载线的电流，通常是车辆照明系统的供电线路（前灯，刹车灯，位置灯），每条线路都具有铁氧体磁芯，螺旋线上具有大致矩形的磁滞特性， 线和读信号线是螺纹的。 测试信号线连接到交流电源，读取信号通过放大器连接到指示灯，使得当电流流经供电线时，芯将饱和，并且没有交流将从测试信号线传输到 读信号线 当电流中断时，例如由于灯的烧坏，电流将流过测试指示器，通常是指示灯，其将指示故障。