METHOD FOR ESTIMATING PARTICULATE MATTER REMAINING QUANTITY OF PARTICULATE FILTER AND METHOD FOR REGENERATING PARTICULATE FILTER

摘要

PPROBLEM TO BE SOLVED: To more accurately estimate particulate matter remaining quantity during execution of filter regeneration control execution oxidizing/removing particulate matter accumulating on a particulate filter. PSOLUTION: During execution of filter regeneration control, PM remaining quantity at every regular time pass is estimated by subtracting product of multiplication of the regular time, PM removing rate per unit time and PM remaining quantity at count start time of the regular time from PM remaining quantity at count start time of the regular time at each count of regular time. PCOPYRIGHT: (C)2006,JPO&NCIPI