| Abstract |
This paper describes an advanced anti-slip control for electric rail vehicles, running test results of a rail
vehicle and a practical evaluation method of anti-slip control performance. The anti-slip control which
is designated the "re-adhesion point detection type" suppresses wheel slip or skid and detects readhesion
points so that motor torque can be returned quickly after a slip or skid is finished. It ensures
less slip and better use of available adhesion using a simple method. Four evaluation factors, adhesion
utilization rate, vehicle acceleration, slip magnitude and vehicle vibration are defined. They are
calculated from measurement data of vehicle running tests or real time simulator tests. Three anti-slip
controls, the proposed re-adhesion point detection type, maximum adhesion trace type and conventional
type, are compared using the evaluation factors. The former two anti-slip controls have better
performance on all the factors than the third conventional anti-slip control. |
