发明名称 |
Obstacle detection system for a vehicle |
摘要 |
<p>An obstacle detection system for a vehicle which is capable of detecting nearby and remote objects successfully by use of a combination of an electromagnetic wave sensors and ultrasonic wave sensors. The system of the present invention includes a plurality of ultrasonic wave sensors each transmitting an ultrasonic wave around the vehicle and receives a reflected wave thereof for detection of nearby obstacles around the vehicle, and an electromagnetic waver sensor which transmits an electromagnetic wave in a forward direction of the vehicle and receives a reflected electromagnetic wave thereof for detection of a remote obstacle. The system includes a vehicle speed sensor is provided for sensing a speed of the vehicle. A detection unit detects a presence of the nearby obstacle based upon the reflected ultrasonic wave when the vehicle speed equals to a predetermined reference speed or less, and detects a position of the remote obstacle relative to the vehicle only based upon the reflected electromagnetic wave when the vehicle speed exceeds the reference speed. The detection unit issues a nearby signal upon detection of the nearby obstacle and issues a remote signal when the position of the remote obstacle is within a predetermined long distance from the vehicle. A warning unit gives warnings respectively in response to the nearby and remote signals. <IMAGE></p> |
申请公布号 |
EP0952460(B1) |
申请公布日期 |
2009.06.24 |
申请号 |
EP19990107302 |
申请日期 |
1999.04.19 |
申请人 |
PANASONIC ELECTRIC WORKS CO., LTD. |
发明人 |
ADACHI, KENICHI;AZUMA, NAOYA |
分类号 |
B60R21/00;G01S13/93;B60W30/00;G01S13/34;G01S13/86;G01S15/02;G01S15/93 |
主分类号 |
B60R21/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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