System and method for tuning look-ahead error measurements in a rail-based transportation handling controller
AssigneeGeneral Electric Company
InventorsPiero Patrone Bonissone, Yu-To Chen, Pratap Shankar Khedkar
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Abstract
In this invention there is disclosed a system and method for tuning look-ahead error measurements that is used to improve the train handling performance of a rail-based transportation system. A look-ahead error module along with a fuzzy logic controller is synthesized to ensure that a train simulator complies to a prescribed speed limit over a specified track profile while providing a smooth ride. A genetic algorithm is used to adjust the parameters of the look-ahead error module.
Claims16
A system for tuning look-ahead error measurements in a rail-based transportation handling controller, comprising:
- a velocity profiler containing a predetermined velocity profile for operating a rail-based transportation system over a specified track profile;
- a train simulator for simulating an operation of the rail-based transportation system over the specified track profile;
- a look-ahead error module, responsive to the velocity profiler and the train simulator, for determining look-ahead error for the rail-based transportation system;
- a tuner, coupled to the train simulator and the look-ahead error module, for optimizing said look-ahead error determined by the look-ahead error module;
- and
- a fuzzy logic controller for controlling the handling of the train simulator in accordance with said look-ahead error determined by the tuned look-ahead error module, the fuzzy logic controller tracking said look-ahead error and change in said look-ahead error and providing a control action to the train simulator that minimizes the look-ahead error.
A method for tuning look-ahead error measurements in a rail-based transportation handling controller, comprising the steps of:
- providing a predetermined velocity profile for operating a rail-based transportation system over a specified track profile;
- providing a train simulator to simulate an operation of the rail-based transportation system over the specified track profile;
- using a look-ahead error module to determine look-ahead error for the rail-based transportation system according to the predetermined velocity profile and the simulated operation of the rail-based transportation system;
- tuning the look-ahead error module to optimize said look-ahead error;
- and
- providing a fuzzy logic controller to control the handling of the train simulator in accordance with said look-ahead error determined by the tuned look-ahead error module, the fuzzy logic controller tracking said look-ahead error and change in said look-ahead error and providing a control action to the train simulator that minimizes the look-ahead error.
Dependencies are inferred from the claim text.