Patent · US Active

Method to determine the operating resistance of an electrical harness connecting an ECU to a solenoid controlled valve

US11230986B2 · kind B2 · utility

0Cited by

2References

10Claims

0Family size

Assignee

Delphi Technologies IP Limited · BB

Inventors

Patrick Daniel · Kirkel, DE
Pascal Bellamy · Chailles, FR

Key dates

Filing date	May 3, 2019
Grant date	Jan 25, 2022
Priority date	—
Expiry date	May 3, 2039

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D2041/2062
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method of determining the electrical resistance of an actual harness connecting the Engine Control Unit (ECU) to a solenoid valve. The method includes providing a dummy harness connected at one end to the ECU and at the other end to a terminal connection in the vicinity of the solenoid valve. The method also includes determining the estimated RMS current through the actual harness and passing a current through the dummy harness such that the heat exchange to the environment is substantially the same as the actual harness. Power consumption of the dummy harness is measured and resistance of the actual harness is determined from estimated RMS and power consumption of the dummy harness.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.