Knock diagnostic module for engine, analyzes knock count of specific cylinder and selectively generates excessive knock signal when knock count exceeds threshold value
摘要
<p>The module receives a cylinder firing signal corresponding to one of the cylinders (208-1-208-8) in engine (202) and increments sample count. The module selectively increments a knock count based on a knock detection signal that corresponds to cylinder firing signal. A knock analysis module analyses knock count of specific cylinder when sample count of cylinder reaches a specific value and selectively generates excessive knock signals when the knock count exceeds threshold value. A remedial action module selectively performs remedial action based on excessive knock signal. An independent claim is included for knock detection method for engine.</p>
申请公布号
DE102009019283(A1)
申请公布日期
2009.12.03
申请号
DE20091019283
申请日期
2009.04.28
申请人
GM GLOBAL TECHNOLOGY OPERATIONS INC.
发明人
HAMAMA, WAJDI B.;SAWDON, CRAIG M.;FERCH, ERIC;ESFAHAN, HAMID M.;GILDER, JOHN F. VAN;FRANCIS, BRIAN D.;CUBR, ANTHONY E.