State-of-the-Art
in Automotive Engine Diagnostics
General
Motors Proving Ground
Milford,
MI 48380-3726
Abstract: This presentation will present two case studies on the
application of diagnostics to automotive engines. The first describes FaultFinder is a joint project between General Motors
and George Mason University to investigate advanced model-based diagnostics for
engine emission control components.
The fault detection and isolation scheme uses structured parity equations
and has been demonstrated on production vehicles. The second study discusses
electronic throttle control (ETC) system. ETC systems replace the mechanical
linkage between the pedal and throttle with an electronic by-wire system. It is critical in systems of this type
to detect faults and take remedial action in response to these faults in a safe
robust manner. This is
accomplished using an architecture containing redundancies in sensing and
control hardware.
3:30 – 4:30 p.m.