초록 ▼

A microprocessor controlled wheel slip system for a train of railway cars receives wheel speed data, calibrates that data in accordance with a predetermined set of instructions, and indicates when a pair of wheels on an axle of a given car is slipping or spinning relative to the other wheels on the

A microprocessor controlled wheel slip system for a train of railway cars receives wheel speed data, calibrates that data in accordance with a predetermined set of instructions, and indicates when a pair of wheels on an axle of a given car is slipping or spinning relative to the other wheels on the other cars of the train.

대표청구항 ▼

A method for detecting wheelslip on a railway car comprising the steps of: initially measuring the speed of each of a plurality of wheels while the car is coasting; determining valid initial measured speeds; normalizing the valid initial measured speeds in order to derive a normalizing factor for ea

A method for detecting wheelslip on a railway car comprising the steps of: initially measuring the speed of each of a plurality of wheels while the car is coasting; determining valid initial measured speeds; normalizing the valid initial measured speeds in order to derive a normalizing factor for each wheel; subsequently measuring the speed of each wheel from which a valid initial measured speed was determined; applying the normalizing factor of each wheel to the corresponding subsequently measured speeds; comparing the normalized subsequent speed measurements of the wheels to each other and to previous corresponding normalized speed measurements for each wheel; indicating when the compared normalized speeds between wheels differ from each other by more than a first predetermined amount thereby showing that a wheel is slipping and when the compared normalized speeds for each wheel differ by more than a second predetermined amount thereby showing that the wheels are slipping.