The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 13, 1978
Filed:
Oct. 18, 1976
Dennis F Williamson, Erie, PA (US);
General Electric Company, Erie, PA (US);
Abstract
A highly regenerative electrical brake control system including a variable time ratio power conditioning circuit for regulating braking effort of a direct current electric traction motor in a traction vehicle. The system includes a plurality of switches adapted for connecting the power conditioning circuit in a series path between the motor and a power source during high speed braking whereby the power conditioning circuit steps-down the motor generated voltage magnitude to match the power source voltage magnitude without using series connected resistors for voltage dropping. During low speed brake the switches are effective to reconnect the power conditioning circuit in a shunt arrangement with the motor whereby the motor voltage magnitude may be stepped-up to match the higher voltage magnitude of the power source. In a further embodiment provision is made for blending of dynamic and regenerative electrical braking when the power source is not totally receptive to motor generated current.