Vehicular velocity controlling apparatus and method to follow up a preceding vehicle running ahead of vehicle
First Claim
1. A vehicular velocity controlling apparatus for an automotive vehicle, comprising:
- inter-vehicle distance detecting means for detecting an inter-vehicle distance from the vehicle to a preceding vehicle which is running ahead of the vehicle;
relative velocity detecting means for detecting a relative velocity of the vehicle to the preceding vehicle;
vehicular velocity detecting means for detecting a vehicular velocity of the vehicle;
inter-vehicle distance controlling means for calculating a target value of the vehicular velocity to make a detected value of the inter-vehicle distance substantially equal to a target value of the inter-vehicle distance on the basis of the detected value of the inter-vehicle distance and a detected value of the vehicular velocity;
vehicular velocity controlling means for controlling the vehicular velocity to make the detected value of the vehicular velocity substantially equal to the target value of the vehicular velocity;
vehicular turning magnitude detecting means for detecting a magnitude of a turning of the vehicle;
correction coefficient calculating means for calculating a correction coefficient of the magnitude of the vehicular turning in accordance with the detected value of the vehicular velocity; and
target vehicular velocity correcting means for correcting the target value of the vehicular velocity on the basis of the turning magnitude correction coefficient by which the detected value of the turning magnitude is corrected.
1 Assignment
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Accused Products
Abstract
In vehicular velocity controlling method and apparatus for an automotive vehicle, an inter-vehicle distance from the vehicle to a preceding vehicle which is running ahead of the vehicle is detected, a relative velocity of the vehicle to the preceding vehicle is detected, a vehicular velocity of the vehicle is detected, a target value of the vehicular velocity to make a detected value of the inter-vehicle distance substantially equal to a target value of the inter-vehicle distance is calculated on the basis of the detected value of the inter-vehicle distance and a detected value of the vehicular velocity, the vehicular velocity is controlled to make the detected value of the vehicular velocity substantially equal to the target value of the vehicular velocity, a magnitude of a turning (for example, a lateral acceleration) of the vehicle is detected, a correction coefficient of the magnitude of the turning of the vehicle is calculated in accordance with the detected value of the vehicular velocity, and the target value of the vehicular velocity is corrected on the basis of the turning magnitude correction coefficient by which the detected value of the turning magnitude is corrected.
21 Citations
14 Claims
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1. A vehicular velocity controlling apparatus for an automotive vehicle, comprising:
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inter-vehicle distance detecting means for detecting an inter-vehicle distance from the vehicle to a preceding vehicle which is running ahead of the vehicle;
relative velocity detecting means for detecting a relative velocity of the vehicle to the preceding vehicle;
vehicular velocity detecting means for detecting a vehicular velocity of the vehicle;
inter-vehicle distance controlling means for calculating a target value of the vehicular velocity to make a detected value of the inter-vehicle distance substantially equal to a target value of the inter-vehicle distance on the basis of the detected value of the inter-vehicle distance and a detected value of the vehicular velocity;
vehicular velocity controlling means for controlling the vehicular velocity to make the detected value of the vehicular velocity substantially equal to the target value of the vehicular velocity;
vehicular turning magnitude detecting means for detecting a magnitude of a turning of the vehicle;
correction coefficient calculating means for calculating a correction coefficient of the magnitude of the vehicular turning in accordance with the detected value of the vehicular velocity; and
target vehicular velocity correcting means for correcting the target value of the vehicular velocity on the basis of the turning magnitude correction coefficient by which the detected value of the turning magnitude is corrected.
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2. A vehicular velocity controlling method for an automotive vehicle, comprising:
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detecting an inter-vehicle distance from the vehicle to a preceding vehicle which is running ahead of the vehicle;
detecting a relative velocity of the vehicle to the preceding vehicle;
detecting a vehicular velocity of the vehicle;
calculating a target value of the vehicular velocity to make a detected value of the inter-vehicle distance substantially equal to a target value of the inter-vehicle distance on the basis of the detected value of the inter-vehicle distance and a detected value of the vehicular velocity;
controlling the vehicular velocity to make the detected value of the vehicular velocity substantially equal to the target value of the vehicular velocity;
detecting a magnitude of a turning of the vehicle;
calculating a correction coefficient of the magnitude of the turning of the vehicle in accordance with the detected value of the vehicular velocity; and
correcting the target value of the vehicular velocity on the basis of the turning magnitude correction coefficient by which the detected value of the turning magnitude is corrected.
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3. A vehicular velocity controlling apparatus for an automotive vehicle, comprising:
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an inter-vehicle distance detector to detect an inter-vehicle distance from the vehicle to a preceding vehicle which is running ahead of the vehicle;
a relative velocity detector to detect a relative velocity of the vehicle to the preceding vehicle;
a vehicular velocity detector to detect a vehicular velocity of the vehicle;
an inter-vehicle distance controlling section that calculates a target value of the vehicular velocity to make a detected value of the inter-vehicle distance substantially equal to a target value of the inter-vehicle distance on the basis of the detected value of the inter-vehicle distance and a detected value of the vehicular velocity;
a vehicular velocity controlling section that controls the vehicular velocity to make the detected value of the vehicular velocity substantially equal to the target value of the vehicular velocity;
a vehicular turning magnitude detector to detect a magnitude of a turning of the vehicle;
a correction coefficient calculating section that calculates a correction coefficient of the magnitude of the turning in accordance with the detected value of the vehicular velocity; and
a target vehicular velocity correcting section that corrects the target value of the vehicular velocity on the basis of the turning magnitude correction coefficient by which the detected value of the turning magnitude is corrected. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification