公开(公告)号：EP3382190A1

公开(公告)日：2018-10-03

申请号：EP18158293.3

申请日：2018-02-23

申请人： Mitsubishi Jidosha Kogyo K.K.

发明人： UEMATSU, Kyosuke ,  MATSUNAGA, Hideo ,  FURUTA, Katsuhiro

IPC分类号： F02M25/08 ,  F02D41/00

CPC分类号： F02M25/0818 ,  B01D53/0407 ,  F02D19/027 ,  F02D41/003 ,  F02D41/22 ,  F02D2041/225 ,  F02D2250/41 ,  F02M21/0293 ,  F02M25/08 ,  F02M25/0809 ,  F02M25/0836 ,  F02M25/0854 ,  F02M25/0872 ,  F02M25/089 ,  F02M2025/0881 ,  F04C2270/185 ,  F04C2270/86 ,  Y02T10/32

摘要： After an engine (10) is started, pump monitoring is performed as follows: a canister (33) is opened to the atmosphere; a negative pressure pump (34c) is activated; and abnormality of the negative pressure pump (34c) is evaluated on the basis of canister pressure Pc detected with a pressure sensor (34h) in an evaporative leakage checking module (34), and after the pump monitoring is completed, a switching valve (34e) is closed so that the negative pressure pump (34c) communicates with the canister (33) for purge any fuel evaporative gas into an intake passage (11) of the engine (10), and whether or not leakage has occurred in a fuel evaporative gas emission suppressor (1) is evaluated based on the canister pressure Pc. [Selected Drawing] FIG. 4