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Particulate Matter Emission Characteristics under Transient Pattern Drivings

1989; Linguagem: Inglês

10.4271/890468

2688-3627

Tsugio Abe, Tatsuji Sato, Morimasa HAYASHIDA,

Advanced Combustion Engine Technologies

The paper details experiments in which diesel engine real-time and simultaneous measurements of particulate matter emissions (PME) under transient engine operating conditions have been carried out by several methods under 20 kinds of actual speed pattern driving schedules. Frequencies of each engine speed and load zone used for individual driving schedules at different laden weight are statistically analysed. PME are also estimated and compared with PME characteristics under steady engine operations. Applying these data, technical possibilities to replace comprehensive driving conditions of actual speed patterns with a series of steady engine operating conditions, and to obtain equivalent PME, are studied. As a result of the study, it has been verified that the three-point steady-state operations can yield nearly identical PME characteristics (g/test) to those of transient speed pattern operations, by using time-averaged values of the used engine speed and load. (A) For the covering abstract see IRRD 865952.