System for controlling the rotation of the body of a railway veh

Details System for controlling the rotation of the body of a railway veh System for controlling the rotation of the body of a railway veh

1993-02-19

1994-07-26

Le, Mark T.

Railway rolling stock

Trucks

Bogie

105164, B61F 500

Patent

active

053319036

ABSTRACT:
The system of the invention comprises a gyroscope having two degrees of freedom fixed to a carriage of the vehicle and having a first axis of sensitivity disposed in the longitudinal direction of the carriage and a second axis of sensitivity disposed in the vertical direction; the gyroscope is operable to generate a first signal indicative of the angular velocity .omega..sub.x about a first axis disposed in the said longitudinal direction and a second signal indicative of the angular velocity .omega..sub.z of the carriage about a second, vertical axis; the system further includes a tachometric detector operable to generate a signal indicating the speed v of the vehicle and at least one integrator operable to integrate the first said signal to generate a signal indicating the angle of rotation .phi..sub.x of the carriage about the longitudinal axis; a microprocessor forms the product of the signal indicating the angle of rotation and the acceleration due to gravity g and the product of the signal indicating the speed v and the signal indicating the angular velocity .omega..sub.z and finally takes the difference between the second product and the first in such a way as to obtain a signal indicating the non-compensated transverse acceleration.

REFERENCES:
patent: 3683818 (1972-08-01), Meir et al.
patent: 3789769 (1974-02-01), Strohmer et al.
patent: 3844225 (1974-10-01), Di Majo
patent: 3918369 (1975-11-01), Kitaoka et al.
patent: 4267736 (1981-05-01), Westbeck
patent: 4867476 (1989-09-01), Yamanaka et al.

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