Distance coefficient learning apparatus, distance coefficient learning method, and current position calculation apparatus

摘要

The distance coefficient learning device updates the first estimated value and the first parameter of the distance coefficient based on the observation amount calculated from the vehicle speed pulse and the GPS information, the first estimated value of the distance coefficient, and the first parameter. The second estimated value and the second parameter of the distance coefficient are updated based on the first learning device, the observation amount calculated from the vehicle speed pulse and the GPS information, the second estimated value of the distance coefficient, and the second parameter. When the difference between the second learning device and the first estimated value and the second estimated value is equal to or greater than a predetermined value, the first parameter and the first estimated value of the first learning device are And an arithmetic control unit that rewrites the second parameter and the second estimated value of the learning device.