Delphi Technologies, Inc.

Delphi Technologies IP Limited

James D Ward

Walter Thomas Symons

Kenneth M Simpson

Kaius Kiiren Polikarpus

Harry L Husted

Eric P Clyde

Hallett D Breidenbach

Marsha E Nottingham

Alton L Schuessler

An exhaust sensor comprises a sensing electrode and a reference electrode each in contact with an electrolyte. At least one of the sensing electrode and the reference electrode are formed by depositing an electrode precursor material on an electrolyte precursor material and sintering the combination at a sufficient temperature for a sufficient time to achieve densification of the electrolyte, wherein the electrode precursor material comprises an alkali salt. Electrode patterns having enhanced perimeter ratios are also disclosed. The resulting exhaust sensor is capable of providing a usable output at a reduced operating temperature.

Low-temperature activity exhaust sensor

A wire retention clip includes a first compartment for allowing at least a first wire to pass through the compartment uninterrupted and for retaining the at least one wire to the wire retention clip. The wire retention clip also includes a second compartment that is distinct from the first compartment and contains and electronic device.

Wire retention clip

An improved method of diagnosing shaft sensor failure in a reciprocating internal combustion engine verifies engine rotation by sensor information responsive to dynamic variation in engine air intake that occurs during engine rotation. Failure of the shaft sensor is diagnosed when the dynamic variation in engine air intake is detected in the absence of a shaft sensor signal. The sensor information used to detect the dynamic variation in intake air may be obtained from either a mass air flow sensor disposed in a throttle passage of the engine, or from a pressure sensor disposed in an intake manifold of the engine, and virtually all current engine control systems utilize at least one of these sensors. The dynamic variation is detected by recognizing rising and falling segments of the signal waveform, by comparing the relative manifold pressure to predetermined maximum and minimum values, or by using a derivative of the signal waveform to recognize its inflection points.

Diagnostic method for a shaft sensor in a reciprocating internal combustion engine

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Washington, DC, United States of America

James D Ward