|
Knock detection using wavelets
|
|
By
Sarath kumar Jha and Rakesh Pandey
|
|
Automotive DesignLine
(09/18/2009 0:49 PM EDT)
|
|
|
Engine knock reduces the efficiency of internal combustion engines along with producing harmful emissions, especially nitrogen oxide. Conventional knock detection uses Fourier transform approaches such as accelerometers .
In this article, Freescale Semiconductor automotive engineers propose a new wavelet transform approach in which engine knock is detected as a transient signal. After summarizing current accelerometer and cylinder pressure techniques for detecting engine knock, the authors describe a new engine knock detection scheme based on a wavelet transform approach.
They conclude that a new adaptive knock detection approach is feasible using wavelet transform and that future work should focus on efficient hardware implementation.
Read the full article here
|
|
|
|
CAREER CENTER
|
Ready to take that job and shove it?
|
|
SPONSOR
|
|
|
|
RECENT JOB POSTINGS
|
|
|
For more great jobs, career related news, features and services, please visit EETimes' Career Center. |
|
