Axle modulator 480 103 ... 0 The axle modulator controls the brake cylinder pressure on the two sides of a single or dual axle. It has two pneumatically independent pressure control channels with an air admission and bleeder valve each, individual pressure sensors and a joint electronic control unit. Desired pressure definition and external surveillance take place via the central module. Moreover, wheel rotation speed is measured and evaluated via two speed sensors. In case of wheel-lock or wheel-spin, the set nominal value is modified. Provision has been made for the connection of two sensors to detect brake lining wear.
The axle modulator for the driving axle has an additional connection for a redundant pneumatic braking circuit. A two-way check valve on each side drives the higher pressure (electro-pneumatic or redundant) through to the brake cylinder. The axle modulator for the additional axle does not have three two-way valve. How it works: Brake signal transmitter Description of components EBS 3. 13