Running control apparatus for vehicles and alarm apparatus for vehicles
First Claim
1. A running control apparatus for vehicles, comprising:
- relative acceleration detecting means for detecting a relative acceleration between a subject vehicle and an object;
judging means for judging whether the subject vehicle and the object relatively approach each other at the relative acceleration detected by the relative acceleration detecting means not less than a predetermined value of relative acceleration; and
control means for controlling the subject vehicle velocity such that the relative acceleration for which a direction to make a relative approach of the subject vehicle and the object positive is not more than a predetermined target value of relative acceleration when the judging means judges that the subject vehicle and the object relatively approach each other at the relative acceleration not less than the predetermined value of relative acceleration, wherein said relative acceleration detecting means includes a radar means for obtaining at least one of the distance and the relative speed therebetween, and the relative acceleration is obtained by differentiating the obtained one of the distance and the relative speed thereof.
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Accused Products
Abstract
A driver regards a relative acceleration of a subject vehicle with respect to an object such as a preceding vehicle, an obstacle and the like as one having highest priority, and performs control such that deceleration is immediately started even if a relative velocity is small if the relative acceleration is large. Taking note of this point, the relative acceleration between the subject vehicle and the object is detected, and it is judged whether or not the subject vehicle and the object relatively approach each other at a relative acceleration not less than a predetermined value. A vehicle velocity is controlled such that the relative acceleration is not more than a predetermined target relative acceleration (for which a direction for approach is positive) when the subject vehicle and the object relatively approach each other at a relative acceleration not less than the predetermined value. Thus, the start of deceleration felt by the driver is adequate.
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Citations
14 Claims
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1. A running control apparatus for vehicles, comprising:
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relative acceleration detecting means for detecting a relative acceleration between a subject vehicle and an object; judging means for judging whether the subject vehicle and the object relatively approach each other at the relative acceleration detected by the relative acceleration detecting means not less than a predetermined value of relative acceleration; and control means for controlling the subject vehicle velocity such that the relative acceleration for which a direction to make a relative approach of the subject vehicle and the object positive is not more than a predetermined target value of relative acceleration when the judging means judges that the subject vehicle and the object relatively approach each other at the relative acceleration not less than the predetermined value of relative acceleration, wherein said relative acceleration detecting means includes a radar means for obtaining at least one of the distance and the relative speed therebetween, and the relative acceleration is obtained by differentiating the obtained one of the distance and the relative speed thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification