Vehicle control apparatus
First Claim
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1. A control apparatus for a vehicle comprising:
- obstruction detection means for measuring a headway distance until an obstruction existing ahead of said vehicle by means of a radar apparatus;
means for performing vehicle control or alarm control on the basis of said headway distance;
means for detecting detection performance of said obstruction detection means in a vehicle in which said obstruction detection means is used to perform two or more controls containing said vehicle control or alarm control; and
means for controlling to stop operation of said vehicle control or alarm control in accordance with said detection performance individually.
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Abstract
A vehicle control apparatus includes an obstruction detection unit for measuring a headway distance until an existing ahead of the vehicle by means of a radar device, a unit for performing vehicle control or alarm control on the basis of the headway distance, a unit for detecting detection performance of the obstruction detection means in a vehicle in which the obstruction detection unit is used to perform two or more controls containing the vehicle control or alarm control, and a unit for controlling to stop operation of the vehicle control or alarm control in accordance with the detection performance individually.
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Citations
19 Claims
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1. A control apparatus for a vehicle comprising:
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obstruction detection means for measuring a headway distance until an obstruction existing ahead of said vehicle by means of a radar apparatus;
means for performing vehicle control or alarm control on the basis of said headway distance;
means for detecting detection performance of said obstruction detection means in a vehicle in which said obstruction detection means is used to perform two or more controls containing said vehicle control or alarm control; and
means for controlling to stop operation of said vehicle control or alarm control in accordance with said detection performance individually. - View Dependent Claims (2, 18, 19)
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3. A radar apparatus mounted in a vehicle, comprising:
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obstruction detection means for detecting an obstruction existing ahead of said vehicle by means of said radar apparatus;
means for acquiring a speed of the vehicle;
means for identifying a moving body from said obstruction on the basis of said speed;
means of calculating an RCS value of said moving body;
means for statistically processing said RCS value; and
means for detecting detection performance of said obstruction detection means on the basis of a result of said statistical processing.
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4. A radar apparatus mounted in a vehicle, comprising:
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obstruction detection means for detecting an obstruction existing ahead of said vehicle by means of said radar apparatus;
means for acquiring a distance at which an approaching obstruction begins to be detected or a distance at which an obstruction going away begins to be missed, and means for detecting detection performance of said obstruction detection means on the basis of said distance at which the approaching obstruction begins to be detected or said distance at which the obstruction going away begins to be missed.
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5. A radar apparatus mounted in a vehicle, comprising:
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obstruction detection means for measuring a headway distance until an obstruction existing ahead of said vehicle or a relative speed to the obstruction;
means for classifying detection performance of said obstruction detection means into a plurality of levels, and means for outputting said level outside.
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6. A vehicle comprising:
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means for acquiring a speed of said vehicle;
obstruction detection means for measuring a headway distance until an obstruction existing ahead of said vehicle; and
means for notifying information concerning a relation of said vehicle and said obstruction to a driver on the basis of said speed of said vehicle and/or said measured headway distance;
wherein traveling control of said vehicle is performed on the basis of said speed of said vehicle and/or said measured headway distance;
said vehicle further comprising;
means for judging detection performance of said obstruction detection means;
wherein a method of said notification by said notifying means is changed on the basis of said judged detection performance. - View Dependent Claims (8, 9, 10, 13, 17)
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7. A control apparatus of a vehicle, wherein:
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a vehicle speed is acquired, a headway distance until an obstruction existing ahead of said vehicle is measured by means of obstruction detection means, information concerning a relation of said vehicle and said obstruction is notified to a driver on the basis of said speed of said vehicle and/or said measured headway distance, and traveling control of said vehicle is performed on the basis of said speed of said vehicle and/or said measured headway distance, detection performance of said obstruction detection means is judged; and
a method of said notification of said information to the driver is changed on the basis of said judged detection performance.
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11. A radar system mounted in a vehicle, comprising:
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means for detecting an obstruction;
means for calculating an RCS value of said detected obstruction on the basis of a speed of said vehicle acquired by means for acquiring said speed of said vehicle; and
means for judging detection performance of said obstruction detection means on the basis of said RCS value.
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12. A method of judging detection performance of obstruction detection means, comprising the steps of:
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acquiring a speed of a vehicle;
detecting an obstruction by means of obstruction detection means;
calculating an RCS value of said detected obstruction by means of said speed of said vehicle; and
comparing a value calculated on the basis of said RCS value with a predetermined value set previously to thereby judge detection performance of said obstruction detection means.
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14. A radar system mounted in a vehicle, comprising:
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obstruction detection means for measuring a headway distance until an obstruction existing ahead of said vehicle;
storage means for storing a distance at which an obstruction approaching to said vehicle begins to be detected or a distance at which an obstruction going away from said vehicle begins to be missed as an initial value when said obstruction detection means is normal;
means for calculating a current value of said distance at which the obstruction approaching to said vehicle begins to be detected or said distance at which the obstruction going away from said vehicle begins to be missed; and
judgment means for comparing said initial value with said current value to thereby judging detection performance of said obstruction detection means.
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15. A method of judging detection performance of obstruction detection means, comprising the steps of:
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setting as an initial value a distance at which an obstruction approaching to a vehicle begins to be detected when said obstruction detection means is normal, said obstruction being detected by said obstruction detection means;
calculating a current value of the distance at which said obstruction approaching to said vehicle begins to be detected; and
comparing said initial value with said current value to thereby judge detection performance of said obstruction detection means.
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16. A method of judging detection performance of obstruction detection means, comprising the steps of:
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setting as an initial value a distance at which an obstruction going away from a vehicle begins to be missed when said obstruction detection means is normal, said obstruction being detected by said obstruction detection means;
calculating a current value of the distance at which said obstruction going away from said vehicle begins to be missed; and
comparing said initial value with said current value to thereby judge detection performance of said obstruction detection means.
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Specification