Controller for electric railway train

Application Number: 00107055
Application Date: 2000.04.24
Publication Number: 1271658
Publication Date: 2000.11.01
Priority Information: 1999/4/23 JP 115944/99
International: B60L15/00;B60L15/22
Applicant(s) Name: Hitachi, Ltd.
Inventor(s) Name: Anto Takeshi;Tanamachi Tokunosuke;Suzuki Yuto
Patent Agency Code: 31100
Patent Agent: shen zhaokun
Abstract The invention provides an electric railway train for an electric rolling stock, which eliminates the need for a speed sensor of an electric motor further, while restarting and re-adhesion control performable necessary as the electric railway train. An inverter 1 controlling an electric motor 2 which drives an electric rolling stock, speed estimator 8 estimating an electric motor rotational speed, and a control means controlling the inverter based on an estimated value from the estimator 8, are provided, at least one of automatic train control devices for automatically controlling the electric rolling stock based on an electric rolling stock speed signal, a speedometer detecting the rotational speed of a non-driven wheel, and an acceleration sensor detecting acceleration of the electric rolling stock, is provided in the electric rolling stock, and an electric rolling stock speed signal or detection signal obtained therefrom is used for estimating of the rotational speed of the electric motor in the speed estimator 8. A re-adhesion controller 10 for adjusting a current command by detecting racing and gliding of a wheel in the electric rolling stock from a rotational speed estimated value is provided.