Redundant Brake System

Abstract

In a brake system for a commercial vehicle having at least one steered axle and at least one non-steered axle, there is at least one pneumatic brake actuator associated with the steered axle, at least one pneumatic brake actuator associated with the non-steered axle, and an air treatment unit. The brake system has a redundant electro-pneumatic service brake system and an electro-pneumatic parking brake system, wherein the air treatment unit has two integrated pneumatic outputs configured to actuate the pneumatic brake actuators on the steered axles in a sidewise way independently. The brake system can be configured such that the at least one pneumatic brake actuator associated with the steered axle is a pneumatic service brake actuator, and/or the at least one pneumatic brake actuator associated with the non-steered axle is a pneumatic spring brake actuator. The brake system can further be configured such that the two integrated pneumatic outputs of the air treatment unit include a two-channel pneumatic relay valve, wherein the two-channel pneumatic relay valve is configured to pneumatically control the brake actuators on the steered axles independently.

Dependencies are inferred from the claim text.