| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a driving assisting device for a vehicle enabling a driver to commonly use a target inter-vehicle time continuously even in follow-up control at low-speed zone and follow-up control at middle and high speed zones with a natural feeling. <P>SOLUTION: In automatic follow-up control by a travelling control unit 5, a target inter-vehicle time Tt is set through computation on the basis of an own vehicle speed V0, a target acceleration 'a' is computed on the basis of an inter-vehicle distance L between a preceding vehicle and the own vehicle, a speed Vf of the preceding vehicle, the own vehicle speed V0 and the inter-vehicle time Tt, and automatic braking control and automatic acceleration control, etc., are performed. Here, the arithmetic setting of the inter-vehicle time Tt is computed by a function of the speed V0. The function is set to a function showing a tendency that the higher the own vehicle speed V0, the shorter the inter-vehicle time Tt becomes, and the function includes at least a term, in which a first and a second setting values are set in advance, the own vehicle speed V0 is powered by using the second setting value as an exponent, and the powered value is multiplied by the first setting value. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
