ABNORMALITY DETERMINING DEVICE FOR NEUTRAL SWITCH,申请号JP20030037094-传众专利搜索

ABNORMALITY DETERMINING DEVICE FOR NEUTRAL SWITCH

申请公布号：JP2004245358(A)

申请号：JP20030037094

申请日期：2003.02.14

申请公布日期：2004.09.02

申请人：

TOYOTA MOTOR CORP

发明人：MORIYA TAKANORI

分类号：F16H61/12;(IPC1-7):F16H61/12

主分类号：F16H61/12

摘要：PROBLEM TO BE SOLVED: To provide an abnormality determining device for a neutral switch capable of suppressing erroneous determination to increase determination accuracy further. SOLUTION: This neutral switch 25 outputs an on signal or an off signal in accordance with the presence or absence of a neutral condition of a manually operated transmission 15. An electronic controller 26 stores history of the on signal and the off signal of the neutral switch 25 in a period from the detection of gear shift of the manually operated transmission 15 to the next detection as detection history. Here, since the manually operated transmission 15 is in the neutral condition in the period without fail, the on signal and the off signal are outputted if the neutral switch 25 is normal. If only either of the signals is outputted, it is possible that the neutral switch 25 is abnormal. If the off signal is stored during the period, it is determined that the neutral switch 25 causes off-failure, and if the on signal is stored, it is determined that it causes on-failure. COPYRIGHT: (C)2004,JPO&NCIPI