METHOD FOR CONTROLLING BRAKE IN INVERTER ELECTRIC RAILCAR

• Main Authors: UCHIMURA HIROSHI, ONOE MASATAKA
• Format: Patent
• Language: English
• Published: 20.05.1997
• Edition: 6
• Subjects: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; VEHICLES IN GENERAL

PROBLEM TO BE SOLVED: To enhance the fail-safe capability of the interface between a brake electric operating device and an inverter control device. SOLUTION: A brake electric operating device 1 requests braking torque according to the step command of a brake handle from a master controller. An inverter control device 2 develops regenerative braking force corresponding to the braking torque. The regenerative braking force and the braking torque command value are compared with each other using the brake electric operating device 1 and the inverter control device 2, and the difference between them is supplemented using an air brake, and the brake of an inverter electric railcar is thereby controlled. In this case, which of the braking torque command value and calculated actual regenerative braking force is the smaller is employed as the regenerative force to be compared.