Patent ID: 8226174
Filing Date: 2012-07-24
Classification: B60T

Abstract:
1. A rail vehicle brake system comprising: an electrically controlled pneumatic brake valve connected to a brake pipe and including a controller connected to a network; an empty-load device connecting the brake valve to a brake device; the empty-load device including an inlet to receive a brake signal from the brake valve, an outlet for the brake device, a load sensing element, a change over valve for proportioning pneumatic pressure at the inlet and the outlet when empty is sensed by the load sensing element, and a differential pressure element connecting the load sensing element and the change over valve; and an electro-pneumatic lock-out valve controlled by the controller and having a first position which allows the proportioning of the inlet pressure to the outlet and a lock-out position which pneumatically prevents the proportioning of the inlet pressure to the outlet.