Apparatus for controlling electric cars

Patent · Tue Jan 06 04:00:00 EST 1987

OSTI ID:7123565

Naruto, M

An apparatus is described for controlling electric cars comprising: d-c shunt-wound motors adapted to be connected to a d-c source and having armatures and field windings; first chopper circuit means connected in series with the armatures of the d-c shunt-wound motors and controlling the flow of armature currents in both directions upon receipt of timing signals; second chopper circuit means connected in series with the field windings of the d-c shunt-wound motors and controlling the flow of field currents in both directions upon receipt of timing signals; reactors having first and second coils, the first coils being connected in series with the armatures, and the second coils being connected in series with the field windings. The first coils and second coils and magnetically coupled together maintaining such a relation that the field currents decrease with the decrease in the armature currents.

• Assignee: Mitsubishi Denki Kabushiki Kaisha, Tokyo
• Patent Number(s): US 4634942
• OSTI ID: 7123565
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330300* -- Advanced Propulsion Systems-- Electric-Powered Systems
ARMATURES
CONTROL SYSTEMS
CURRENTS
DIRECT CURRENT
ELECTRIC COILS
ELECTRIC CURRENTS
ELECTRIC MOTORS
ELECTRIC-POWERED VEHICLES
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
EQUIPMENT
MOTORS
SHUNT REACTORS
SIGNALS
TIMING CIRCUITS
VEHICLES