Sage Journals: Discover world-class research

Abstract

A new method for the detection of the CPS (cam profile switching) state of spark ignition automotive engines is proposed and implemented. The method is based on the evaluation of the amplitude and the phase of the component of the intake manifold pressure signal with the period of 720 CA (crank angle) degrees. The method permits the detection of the CPS bank failure even at high rotational speeds.

Keywords

real-time system cam profile switching diagnostics spark ignition engines

Get full access to this article

View all access options for this article.

References

Hassdenteufel

Method of checking the operability of the variable valve control in an internal combustion engine, US Patent 6 213 068, B1, 10 April 2001.

Schwarzental

Method and device for monitoring the position of a variable valve control, US Patent 6 006 152, 21 December 1999.

The cam profile switching state detection method

Abstract

Abstract

Keywords

Get full access to this article

References