| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent a golf cart from being automatically traveled based on an erroneous detection result by surely detecting the abnormality of a sensor for detecting a guide line which is installed in a prescribed travelling path, while including the abnormality in its signal processing circuit. SOLUTION: Unless the output of a first position signal processing circuit 91 which issues an output corresponding to the induced voltage of a position sensor for detecting a guide line exists (S1) or unless the output of a second position signal processing circuit 92 which issues an output corresponding to the frequency of a current induced by the position sensor exists (S2), it is judged that the abnormality such as disconnection, short-circuit or the like, occurs in the position sensor or the first position signal processing circuit 91 to stop an engine E(S4). Then, the abnormality alarm is issued and informs a user.</p> |
