The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 11, 1989
Filed:
Jan. 06, 1986
Applicant:
Inventor:
Peter J Reeve, Warwickshire, GB;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
36442402 ; 180168 ; 364447 ;
Abstract
An automated vehicle includes a navigation system which carries out a dead reckoning calculation of the vehicle's position based on inputs from sensors on the motion of a steering wheel in the preceding time interval, .DELTA.t. Parameters of the system including the heading angle, the spatial position x,y the angular drift in the steering angle .alpha., a crabbing angle .beta. and a variation 1.sub.dm in steering wheel radius are updated by the addition of the product of a Kalman gain calculated by computer and an error signal produced each time an observation is made by laser bearing finding equipment on the vehicle.