Equipment and method for detecting electrical leakage in electri

Details Equipment and method for detecting electrical leakage in electri Equipment and method for detecting electrical leakage in electri

1995-02-24

1997-11-11

Nguyen, Vinh P

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

In vehicle wiring

324510, 324522, G01M 1500

Patent

active

056868391

ABSTRACT:
An equipment and method for detecting electrical leakage in an electric vehicle. For detecting occurrence of leakage in an alternating-current motor for driving the vehicle, a source-side transistor of an inverter is turned ON and a sink-side transistor is turned OFF. When leakage occurs in the motor, there arises an electrical path to an electric leakage detector through the grounded portion from the transistor on the source-side, the motor winding, and the leakage portion. Due to a current flowing in the electrical path, the electrical leakage detector determines that the leakage is present, and the result is notified to the ECU (electronic control unit). On the contrary, the source-side and sink-side may preferably be turned OFF and ON respectively. It is unnecessary to turn ON all the source-side or all the sink-side transistors. The leakage in the motor can be detected without misinterpreting noise on the battery-side as viewed from the inverter.

REFERENCES:
patent: 5382946 (1995-01-01), Gale
patent: 5481194 (1996-01-01), Schantz et al.
patent: 5510725 (1996-04-01), Schantz, Jr. et al.
patent: 5530360 (1996-06-01), Kerchaert et al.

Affiliated with

Also associated with

Rating

Equipment and method for detecting electrical leakage in electri does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Equipment and method for detecting electrical leakage in electri, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Equipment and method for detecting electrical leakage in electri will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1232092