Method of controlling automatically driven motor vehicle
First Claim
1. A method of controlling an automatically driven motor vehicle to travel automatically along a predetermined running path on a road while successively detecting magnetic sources positioned along the running path with a sensor on the motor vehicle, comprising the steps of:
- recognizing a position of the motor vehicle on the running path based on detection of the magnetic sources with the magnetic sensor while the motor vehicle is running along the running path;
estimating a present position of the motor vehicle on the running path based on map information of said running path, which is stored on the motor vehicle, and positional information of the motor vehicle produced upon the detection of the magnetic sources before the sensor becomes unable to detect the magnetic sources, when the motor vehicle deviates from the running path and the sensor is unable to detect the magnetic sources; and
correcting a steering control quantity for the motor vehicle based on a positional relationship between said present position and said running path, for thereby automatically returning the motor vehicle to the running path.
1 Assignment
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Accused Products
Abstract
An automatically driven motor vehicle is controlled to travel automatically along a predetermined running path on a road while successively detecting magnetic sources positioned along the running path with a sensor on the motor vehicle. A position of the motor vehicle on the running path is recognized based on detection of the magnetic sources with the magnetic sensor while the motor vehicle is running along the running path. A present position of the motor vehicle on the running path is estimated based on map information of the running path, which is stored on the motor vehicle, and positional information of the motor vehicle produced upon the detection of the magnetic sources before the sensor becomes unable to detect the magnetic sources, when the motor vehicle deviates from the running path and the sensor is unable to detect the magnetic sources. A steering control quantity for the motor vehicle is corrected based on a positional relationship between the present position and the running path, for thereby automatically returning the motor vehicle to the running path.
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Citations
3 Claims
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1. A method of controlling an automatically driven motor vehicle to travel automatically along a predetermined running path on a road while successively detecting magnetic sources positioned along the running path with a sensor on the motor vehicle, comprising the steps of:
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recognizing a position of the motor vehicle on the running path based on detection of the magnetic sources with the magnetic sensor while the motor vehicle is running along the running path; estimating a present position of the motor vehicle on the running path based on map information of said running path, which is stored on the motor vehicle, and positional information of the motor vehicle produced upon the detection of the magnetic sources before the sensor becomes unable to detect the magnetic sources, when the motor vehicle deviates from the running path and the sensor is unable to detect the magnetic sources; and correcting a steering control quantity for the motor vehicle based on a positional relationship between said present position and said running path, for thereby automatically returning the motor vehicle to the running path. - View Dependent Claims (2, 3)
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Specification