| 摘要 |
<p>PURPOSE:To improve the reliability of control by surely judging the abnormality of an engine control unit even when no abnormality exists in the controller and transmitting/receiving means of the engine control unit and any abnormality only exists in the state of transmitting signals between them. CONSTITUTION:In the multiplex communication equipment in which plural control units are connected to a multiplex communication line 9, a control execution signal is outputted from a slip control unit 2 to an engine control unit 1. When control is completed, a signal containing information showing the end of control is outputted from the slip control unit 2 to the multiplex communication line 9 and when a signal containing information showing the control end of the slip control unit 2 is not received from the engine control unit 1 within prescribed time, it is judged that any abnormality exists in the engine control unit 1.</p> |
