Regenerative brake controller for electric motor car or the like

Abstract

Abstract PURPOSE:To prove the certainty of the operation of an erroneous operation protecting device by providing a preliminary exciter in parallel with a series circuit of a starting solenoid switch and an armature winding, and conducting the exciter during the delay period from the excitation starting time of the switch to the closure of the contact of the switch. CONSTITUTION:When a forward/reverse changeover switch F-R-SW is operated, an exciting coil MF or MR is excited to close its contact mf or mr. Thus, a transistor TR is conducted, and a chopper CH and an erroneous operation detecting protector TI becomes operating state. A status discriminator SD discriminates the status according to the amplitude of an armature voltage or an armature current at this time, excites the exciting coil of a starting solenoid switch mg in the prescribed state and continues the conducting state of the transistor TR until the switch mg is closed.

Inventors

• 👤 Masayoshi Niimi
• 👤 新実　正義
• 👤 Toshifumi Ono
• 👤 小野　俊史

Bibliographic Details