Cooperative control of regenerative brake and mechanical brake for a two coach train

Trains require high deceleration and stable traveling performance. The improvement of adhesion characteristics is, thus, very important for electric trains. Previously, we have proposed an anti-slip/skid re-adhesion control system based on a disturbance observer, with a high adhesion force utilization ratio. In the present work, we focus on the deceleration mode. Generally, a train has an electric regenerative brake (electric brake) and a mechanical brake (air brake). Under wet railway track conditions, the regenerative brake may fall into abeyance caused by the mechanical brake response. This paper considers a blended braking control and proposes a regenerative brake priority control. This paper evaluates and discusses regenerative brake priority control using numerical simulations.