Object recognition device for vehicle
First Claim
1. An object recognition device for a vehicle, comprising:
- a radar unit for emitting transmission waves in a plurality of angular ranges in a vehicle-height direction and for receiving reflection waves of the transmission waves reflected from a reflecting object, the transmission waves being emitted in a recognition range that is set based on the plurality of angular ranges;
recognition range setting means for setting the recognition range and instructing the radar unit to emit the transmission waves in the recognition range;
recognition means for recognizing the reflecting object based on a result of emission and receipt by the radar unit;
speed detection means for detecting a speed of the vehicle; and
recognition range switching means for switching the recognition range to a new recognition range when the speed detected by the speed detection means is smaller than a predetermined speed, the new recognition range being based on the plurality of angular ranges and located higher in the vehicle-height direction than the previous recognition range.
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Accused Products
Abstract
An object recognition device includes a radar unit, a recognition range setting means, a recognition means, a speed detection means, and a recognition range switching means. The radar unit is for emitting transmission waves in a plurality of angular ranges within a recognition range set from the plurality of angular ranges and for receiving reflected transmission waves from a reflecting object. The recognition range setting means sets the recognition range and instructs the radar unit to emit the transmission waves. The recognition means recognizes the reflecting object based on a result of emission and receipt of waves by the radar unit. The speed detection means detects a vehicle speed. The recognition range switching means switches the recognition range to a new recognition range when the detected speed is smaller than a predetermined speed.
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Citations
11 Claims
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1. An object recognition device for a vehicle, comprising:
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a radar unit for emitting transmission waves in a plurality of angular ranges in a vehicle-height direction and for receiving reflection waves of the transmission waves reflected from a reflecting object, the transmission waves being emitted in a recognition range that is set based on the plurality of angular ranges;
recognition range setting means for setting the recognition range and instructing the radar unit to emit the transmission waves in the recognition range;
recognition means for recognizing the reflecting object based on a result of emission and receipt by the radar unit;
speed detection means for detecting a speed of the vehicle; and
recognition range switching means for switching the recognition range to a new recognition range when the speed detected by the speed detection means is smaller than a predetermined speed, the new recognition range being based on the plurality of angular ranges and located higher in the vehicle-height direction than the previous recognition range. - View Dependent Claims (2, 4, 6, 8, 10)
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3. The object recognition device for a vehicle, comprising:
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a radar unit for emitting transmission waves in a plurality of angular ranges in a vehicle-height direction and for receiving reflection waves of the transmission waves reflected from a reflecting object, the transmission waves being emitted in a recognition range that is set based on the plurality of angular ranges;
recognition range setting means for setting the recognition range and instructing the radar unit to emit the transmission waves in the recognition range;
recognition means for recognizing the reflecting object based on a result of emission and receiving by the radar unit;
leading vehicle determination means for determining that the reflecting object recognized by the recognition means is a second vehicle that is located ahead of the vehicle and obtaining a distance to the second vehicle; and
the recognition range switching means switches the recognition range to a new recognition range when the distance to the second vehicle is shorter than a predetermined distance, the new recognition range being based on the plurality of angular ranges and located higher in the vehicle-height direction than the previous recognition range. - View Dependent Claims (5, 7, 9, 11)
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Specification