| 摘要 |
PROBLEM TO BE SOLVED: To perform an automatic and smooth control coinciding with an actual action of a vehicle by precisely detecting both a vehicle stop state and a vehicle moving state. SOLUTION: It is discriminated in response to a vehicle velocity signal got from a vehicle velocity sensor 2 whether or not a vehicle velocity pulse per unit time becomes a set value or less to cause the vehicle to be stopped. As a result of this discrimination, when it is discriminated that the vehicle stops, a sumΣP of the vehicle velocity pulse signals is calculated from that time, it is discriminated that the vehicle is under a stop state when the sumΣP of the vehicle velocity pulse signals is lower than a predetermined discrimination value Cp, and in turn, when the sumΣP exceeds the discrimination value Cp, it is discriminated that the vehicle is moving. The predetermined operating condition is accomplished on the basis of the vehicle moving state and the vehicle stop state discriminated in this way and further when it is discriminated that the vehicle is under its stop state, the vehicle stop state holding is started to generate a predetermined braking force. In turn, when it is discriminated that the vehicle is under its moving state during the vehicle stop state, the operation is transferred to a fail-safe control of the vehicle stop state controlling operation. COPYRIGHT: (C)2010,JPO&INPIT
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