RTRI REPORT June 1999

Plant-Test of Electrical Braking to Zero Speed

Masamichi OGASA, Noboru NAGAI, Tomoki WATANABE


  Electric railway vehicles now commonly use regenerative brake in normal operation. However, the regenerative brake doesn't cover the entire speed range, from the top to zero speed. Electrical brake to the zero speed will provide us with a number of merits, including a lighter weight of braking system, reduction in braking shoe changing costs, and a higher deceleration for automatic train operation. We developed algorithm to stop trains completely with electrical brake, and new "gradient estimating feed forward torque pattern control "algorithm, and tested them on our rolling stock test plant. The test results show that vehicle wheels stop completely and maintained them halted state for more than 5 seconds solely by electrical brake, even on a ±20‰ simulated gradient.



Copyright (c) 1999 Railway Technical Research Institute