发明授权
- 专利标题： Device for diagnosing malfunction in a fuel tank
- 专利标题（中）： 用于诊断燃油箱故障的装置
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申请号： US262421申请日： 1999-03-04
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公开(公告)号： US6161424A公开(公告)日： 2000-12-19
- 发明人: Toru Kidokoro , Takaaki Ito , Yoshihiko Hyodo
- 申请人： Toru Kidokoro , Takaaki Ito , Yoshihiko Hyodo
- 申请人地址： JPX Toyota
- 专利权人： Toyota Jidosha Kabushiki Kaisha
- 当前专利权人： Toyota Jidosha Kabushiki Kaisha
- 当前专利权人地址： JPX Toyota
- 优先权： JPX8-347336 19961226; JPX9-36589 19970220
- 主分类号： B60K15/03
- IPC分类号： B60K15/03 ; B60K15/035 ; F02D33/00 ; F02M37/00 ; F02M37/10 ; F02M37/20 ; G01M3/32
摘要：
According to the present invention, there is provided a device for diagnosing malfunction in a fuel tank. The fuel tank has a separator wall therein which separates an interior of the fuel tank into a fuel chamber and an air chamber. The separator wall is deformable according to an amount of fuel in the fuel chamber. The device comprises a device for detecting a change of at least one of a position of the separator wall, the pressure in the tank and the concentration of fuel vapor in the tank, and a device for diagnosing malfunction of the separator wall on the basis of the change to diagnose that the separator wall has malfunction when the change differs from a predetermined regular change.