Unit and method for improving positioning accuracy

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United States of America Patent

PATENT NO 9921065
SERIAL NO

15180488

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A unit for improving positioning accuracy of an autonomous vehicle driving on a road includes a first computation unit configured to compute a first position of the vehicle at a time T1 using data from at least an inertial measurement unit (IMU); a second computation unit configured to compute a second position of the vehicle at the time T1 using data from at least one external sensor and a map; a comparison unit configured to compute a position difference between the computed first and second positions; a correction unit configured to correct an error parameter of the IMU, wherein the error parameter is used for correcting a third position of the vehicle computed by the first computation unit at a time T2 with the computed position difference at time T1, if the second computation unit is unable to compute a fourth position of the vehicle at the time T2.

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Patent Owner(s)

  • VOLVO CAR CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brannstrom, Mattias Erik Gothenburg, SE 23 771
Karlsson, Peter Gothenburg, SE 62 403
Sorstedt, Joakim Lin Gothenburg, SE 9 99

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