Patent ID: 8646853

Claim:
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 comprising an electromagnetic valve unit including a supply valve for supplying supplied compressed air to the brake cylinder and an exhaust valve for adjusting a pressure of the supplied compressed air, wherein the controller includes an electromagnetic-valve drive circuit, said electromagnetic-valve drive circuit: a first switch circuit wherein a first switch for slide control is connected in parallel to ends of a serially connected circuit of a first switch for emergency brake and a first switch for service brake control, with one end of the first switch circuit being connected to a circuit power supply and an other end of the first switch circuit being connected to the supply valve; and a second switch circuit wherein a second switch for slide control is connected in parallel to ends of a serially connected circuit of a second switch for emergency brake and a second switch for service brake control, with one end of the second switch circuit being connected to the other end of the first switch circuit and an other end of the second switch circuit being connected to the exhaust valve.