Apparatus for determining the behavior of a vehicle
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsTadatomi Ishigami, Makoto Mikuriya, Mitsuo Shimotani, Teruki Akamatsu, Toshiyuki Matsuo
Life of this patent
Estimating the term…
Abstract
Location equipment includes a calibration unit for calibrating scale factors used for calculating distances traveled by left and right wheels of a vehicle from pulse signals delivered from wheel sensors respectively installed in the left and right wheels, based on global positioning satellite signals received by a GPS receiver, and an estimation unit for estimating vehicle position and movement from the GPS signals received by the GPS receiver and the pulse signals delivered from the wheel sensors, using the scale factors calibrated by the calibration unit.
Claims17
An apparatus for determining the behavior of a vehicle comprising:
- wheel sensors installed in left and right wheels of a vehicle, each wheel sensor generating a pulse signal as a corresponding one of the left and right wheels rotates;
- a global positioning satellite (GPS) receiver receiving GPS signals sent from GPS satellites;
- calibration means for calibrating respective first and second scale factors associated with the left and right wheels, respectively, used for calculating distances traveled by the left and right wheels from the pulse signals delivered from said wheel sensors, based on the GPS signals received by said GPS receiver;
- and
- estimation means for estimating vehicle position and movement from the GPS signals received by said GPS receiver and the pulse signals delivered from said wheel sensors using the first and second scale factors calibrated by said calibration means.
Dependencies are inferred from the claim text.