2017 Volume 58 Issue 3 Pages 189-195
The Japan Freight Railway Company has developed an inverter-controlled diesel hybrid shunting locomotive, type HD300, to replace aging DE10 diesel shunting locomotives. In the early stage of development, it was difficult to secure sufficient tractive effort just after starting. Therefore, a re-adhesion control method was developed to minimize torque reduction by improving the delay in wheel rotational acceleration signals, used to determine when torque reduction is stopped during anti-slip re-adhesion control, thereby increasing the average tractive effort. The results of running tests verified an increase of 5% or more in the average tractive effort. The developed control method has been applied to the mass-production of the HD300 model.
