| 摘要 |
PURPOSE:To suppress vibration of body due to variation of brake force caused through switching from regenerative brake to pneumatic brake at the final stage of regenerative brake operation by detecting regenerative brake force and combining the regenerative brake and the pneumatic brake according to a predetermined pattern. CONSTITUTION:A brake force generator receives a speed signal I1, a main circuit state signal 12, a regenerative brake input command 13, and a brake force command 14 and outputs a pneumatic brake control signal O1 and a regenerative brake signal O2. Only regenerative brake is applied for high speed but upon lowering of speed, a second simulation signal generator 10 closes switches SW2, SW3 to actuate a brake force pattern subtractor 8 and a coefficient generator 9. Consequently, regenerative brake force decreases according to a pattern and pneumatic brake operation takes place. By such arrangement, switching between regenerative brake operation and pneumatic brake operation can be carried out smoothly for an electric rolling stock. |
