Vehicle propulsion and control system

• US 3,297,926 A
• Filed: 10/19/1961
• Issued: 01/10/1967
• Est. Priority Date: 10/19/1961
• Status: Expired due to Term

• Current Assignee: Donald O. Ruff, Elbert M. Sawyer, Lyle M. Ramey, Robert W. Campbell, Thomas E. Kirk, William D. Worrell
• Original Assignee: Donald O. Ruff, Elbert M. Sawyer, Lyle M. Ramey, Robert W. Campbell, Thomas E. Kirk, William D. Worrell
• Inventors: Campbell, Robert W., Sawyer, Elbert M., Ruff, Donald O., Kirk, Thomas E., Ramey, Lyle M., Worrell, William D.
• Application Number:
  US04/146,180
• Time in Patent Office: 1,909 Days
• US Class Current: 318/400.12
• CPC Class Codes: B60L 2260/162 of electrical cells or capacitors
• CPC Class Codes: B60L 50/00 Electric propulsion with power supplied within the vehicle with power supply from force of nature, e.g. sun or wind, B60L8/00; for monorail vehicles, suspension vehicles or rack railways B60L13/00
• CPC Class Codes: B60L 58/32 for controlling the temperature of fuel cells, e.g. by controlling the electric load
• CPC Class Codes: H02P 25/024 controlled by supply frequency
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility
• CPC Class Codes: Y02T 90/40 Application of hydrogen technology to transportation, e.g. using fuel cells

Claims

1. AN ELECTRIC MOTOR COMPRISING, FIRST AND SECOND STATIONARY WINDINGS EACH HAVING A PLURALITY OF WINDING SECTIONS, A PLURALITY OF SEMICONDUCTOR SWITCHING DEVICES, INPUT TERMINALS ADAPTED TO BE CONNECTED WITH A SOURCE OF DIRECT CURRENT, MEANS CONNECTING SAID WINDING SECTIONS OF SAID FIRST AND SECOND WINDINGS WITH SAID SEMICONDUCTOR SWITCHING DEVICES, MEANS CONNECTING SAID SEMIDUCTOR SWITCHING DEVICES WITH SAID INPUT TERMINALS, SAID SEMICONDUCTOR SWITCHING DEVICES BEING ADAPTED TO PROVIDE A PATH FOR DIRECT CURRENT BETWEEN SAID INPUT TERMINALS AND SAID WINDINGS, MEANS FOR CONTROLLING THE CONDUCTION OF SAID SEMICONDUCTOR SWITCHING DEVICES IN ACCORDANCE WITH ROTOR POSITION AND IN A PREDETERMINED SEQUENCE AS DETERMINED BY ROTOR POSITION, SAID SEQUENCE BEING SUCH THAT A ROTATING MAGNETIC FIELD IS PRODUCED IN SAID FIRST AND SECOND WINDINGS AS SAID ROTOR ROTATES, AND MEANS FOR CONNECTING SAID WINDING SECTIONS IN SERIES OR IN PARALLEL TO CONTROL MOTOR SPEED.