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:
Oct. 27, 2015
Filed:
Aug. 12, 2013
Siemens Industry, Inc., Alpharetta, GA (US);
Mark Edward Kane, Orange Park, FL (US);
Harrison Thomas Hickenlooper, Palatka, FL (US);
Siemens Industry, Inc., Alpharetta, GA (US);
Abstract
A speed profile for an entire train trip includes a maximum allowable speed at each point of the entire trip, taking into account the ability of the train to comply with speed reductions encountered during the trip. The speed profile includes a braking curve that gradually reduces from a higher speed to a lower speed starting at a point at which the train must begin braking in order to be traveling at the lower speed when the train reaches the point at which the lower speed limit begins. The speed profile is generated on multiple wayside computers, cross checked, and then vitally transmitted to an onboard locomotive control system. The onboard control system includes redundant speed sensors with redundant vital circuits, and also includes redundant speed comparators to ensure that the train doesn't exceed the speed profile. A GPS receiver may be used for greater reliability.