| 摘要 |
To provide a train braking device including a controller that controls a brake cylinder pressure acting on a brake cylinder based on a service brake command or an emergency brake command, the train braking device includes a supply valve AMV 20 for supplying compressed air to the brake cylinder and an exhaust valve RMV 21 for adjusting a pressure of the supplied compressed air. The controller includes an electromagnetic-valve drive circuit 1a, which includes a first switch circuit that a first switch SW1 for slide control is connected in parallel to ends of a serially connected circuit of a first switch SW2 for emergency brake and a first switch SW3 for service brake control with its one end being connected to a circuit power supply P and the other end being connected to the supply valve AMV 20, and a second switch circuit that a second switch SW4 for slide control is connected in parallel to ends of a serially connected circuit of a second switch SW5 for emergency brake and a second switch SW6 for service brake control with its one end being connected to the first switch circuit and the other end being connected to the exhaust valve RMV 21. |
