发明授权
- 专利标题： Diagnostic apparatus for an evaporated fuel system, and vehicle control apparatus for a vehicle equipped with the diagnostic apparatus
- 专利标题（中）： 用于蒸发燃料系统的诊断装置和配备有诊断装置的车辆的车辆控制装置
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申请号： US10392306申请日： 2003-03-20
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公开(公告)号： US06769419B2公开(公告)日： 2004-08-03
- 发明人: Hiroshi Kanai , Yoshihiko Hyoudou , Takuya Matsuoka , Naoya Takagi
- 申请人： Hiroshi Kanai , Yoshihiko Hyoudou , Takuya Matsuoka , Naoya Takagi
- 优先权： JP11-301612 19991022; JP2000-111155 20000412
- 主分类号： F02M2508
- IPC分类号： F02M2508
摘要：
The present invention provides an evaporated fuel system diagnostic apparatus. The evaporated fuel system diagnostic apparatus includes a malfunction determination unit which determines whether a malfunction occurs in an evaporated fuel system, by introducing a negative pressure of an intake passage into a fuel tank. An operating condition setting unit sets, when the malfunction determination unit has started the introduction of the negative pressure of the intake passage into the fuel tank, an operating condition of an internal combustion engine in a predetermined condition that causes the negative pressure of the intake passage to be within a predetermined pressure range. Further, the present invention provides a vehicle control apparatus for an automotive vehicle equipped with the evaporated fuel system diagnostic apparatus.