Obstacle detecting system for vehicle
First Claim
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1. An obstacle detecting system for a vehicle, comprising:
- an ultrasonic sensor configured to be provided at a surface of a vehicle door, which is fixed to a vehicle body by a hinge and is operated to open and close relative to the vehicle body;
whereina central axis in a transmitting direction of an ultrasonic wave from the ultrasonic sensor is arranged to have an angle equal to or greater than zero degrees and less than 90 degrees relative to the surface of the vehicle door,wherein the ultrasonic sensor comprises;
a transmitting means provided being deviated outward of the vehicle from the surface of the vehicle door for transmitting ultrasonic signals; and
,a receiving means provided being deviated outward of the vehicle from the surface of the vehicle for receiving the ultrasonic signals reflected on a surface of an object which is positioned apart from the vehicle;
the obstacle detecting system for the vehicle further comprising;
a calculating means for obtaining a position of the object on the basis of a direct reflected signal, which is a first ultrasonic signal transmitted from the transmitting means and received by the receiving means after reflected on the surface of the object and an alternative routing reflected signal which is a second ultrasonic signal, transmitted from the transmitting means to be received by the receiving means after being reflected on the surface of the object and on a surface of the vehicle, deemed as being transmitted from the transmitting means and received by an imaginary receiving means hypothetically determined at a position being mirror symmetrical to the receiving means relative to the surface of the vehicle after being reflected on the surface of the object.
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Abstract
An obstacle detecting system for a vehicle, which includes an ultrasonic sensor provided at a vehicle body for detecting obstacles surrounding the vehicle. A central axis in a transmitting direction of an ultrasonic wave from the ultrasonic sensor is arranged to approximately follow a surface of the vehicle body.
30 Citations
12 Claims
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1. An obstacle detecting system for a vehicle, comprising:
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an ultrasonic sensor configured to be provided at a surface of a vehicle door, which is fixed to a vehicle body by a hinge and is operated to open and close relative to the vehicle body;
whereina central axis in a transmitting direction of an ultrasonic wave from the ultrasonic sensor is arranged to have an angle equal to or greater than zero degrees and less than 90 degrees relative to the surface of the vehicle door, wherein the ultrasonic sensor comprises; a transmitting means provided being deviated outward of the vehicle from the surface of the vehicle door for transmitting ultrasonic signals; and
,a receiving means provided being deviated outward of the vehicle from the surface of the vehicle for receiving the ultrasonic signals reflected on a surface of an object which is positioned apart from the vehicle;
the obstacle detecting system for the vehicle further comprising;a calculating means for obtaining a position of the object on the basis of a direct reflected signal, which is a first ultrasonic signal transmitted from the transmitting means and received by the receiving means after reflected on the surface of the object and an alternative routing reflected signal which is a second ultrasonic signal, transmitted from the transmitting means to be received by the receiving means after being reflected on the surface of the object and on a surface of the vehicle, deemed as being transmitted from the transmitting means and received by an imaginary receiving means hypothetically determined at a position being mirror symmetrical to the receiving means relative to the surface of the vehicle after being reflected on the surface of the object. - View Dependent Claims (2, 3)
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4. An obstacle detecting system for a vehicle, comprising:
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an ultrasonic sensor configured to be provided at a surface of a vehicle door, which is fixed to a vehicle body by a hinge and is operated to open and close relative to the vehicle body;
whereina central axis in a transmitting direction of an ultrasonic wave from the ultrasonic sensor is arranged to have an angle equal to or greater than zero degrees and less than 90 degrees relative to the surface of the vehicle door, wherein the ultrasonic sensor comprises; a transmitting means transmitting ultrasonic signals outward of the vehicle; and a plurality of receiving means receiving the ultrasonic signals reflected on a surface of an object positioned apart from the vehicle;
the obstacle detecting system for the vehicle further comprising;a calculating means specifying a position of the object on the basis of times elapsed from transmitting to receiving the ultrasonic signals to be received by the plurality of receiving means, and determining an actual position of the object at a position being mirror symmetrical to the specified position of the object relative to the surface of the vehicle door when the specified position is determined to be at an inside location relative to the surface of the vehicle door. - View Dependent Claims (5, 6)
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7. An obstacle detecting system for a vehicle, comprising:
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an ultrasonic sensor configured to be provided at a surface of a vehicle door, which is fixed to a vehicle body by a hinge and is operated to open and close relative to the vehicle body;
whereina central axis in a transmitting direction of an ultrasonic wave from the ultrasonic sensor is arranged to have an angle eciual to or greater than zero degrees and less than 90 degrees relative to the surface of the vehicle door, wherein the ultrasonic sensor comprises; a transmitting means provided being deviated outward of the vehicle from the surface of the vehicle door for transmitting ultrasonic signals outward of the vehicle; and a receiving means provided being deviated outward of the vehicle from the surface of the vehicle door for receiving the ultrasonic signals reflected on a surface of an object which is positioned apart from the vehicle;
the obstacle detecting system for the vehicle further comprising;a calculating means for obtaining a position of the object on the basis of a direct reflected signal, which is a first ultrasonic signal transmitted from the transmitting means and received by the receiving means after reflected on the surface of the object and an alternative routing reflected signal which is a second ultrasonic signal, transmitted from the transmitting means to be received by the receiving means after being reflected on the surface of the object and on a surface of the vehicle door, deemed as being transmitted from the transmitting means and received by an imaginary receiving means hypothetically determined at a position being mirror symmetrical to the receiving means relative to the surface of the vehicle after being reflected on the surface of the object. - View Dependent Claims (8, 9)
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10. An obstacle detecting system for a vehicle, comprising:
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an ultrasonic sensor configured to be provided at a surface of a vehicle door, which is fixed to a vehicle body by a hinge and is operated to open and close relative to the vehicle body;
whereina central axis in a transmitting direction of an ultrasonic wave from the ultrasonic sensor is arranged to have an angle equal to or greater than zero degrees and less than 90 degrees relative to the surface of the vehicle door, wherein the ultrasonic sensor comprises; a transmitting means transmitting ultrasonic signals outward of the vehicle; and a plurality of receiving means receiving the ultrasonic signals reflected on a surface of an object positioned apart from the vehicle;
the obstacle detecting system for the vehicle further comprising;a calculating means specifying a position of the object on the basis of times elapsed from transmitting to receiving the ultrasonic signals to be received by the plurality of receiving means, and determining an actual position of the object at a position being mirror symmetrical to the specified position of the object relative to the surface of the vehicle door when the specified position is determined to be at an inside location relative to the surface of the vehicle door. - View Dependent Claims (11, 12)
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Specification