Electronically controllable pneumatic brake system in a utility vehicle and method for electronically controlling a pneumatic brake system in a utility vehicle

An electronically controllable pneumatic brake system for a vehicle, the electronically controllable pneumatic brake system comprising:

• wheel brakes for braking wheels of the vehicle, wherein axle modulators specify a service brake braking pressure to the wheel brakes in dependence upon a service brake control pressure;
• a foot brake valve configured to pneumatically specify the service brake control pressure to the axle modulators, wherein the service brake control pressure can be generated by the foot brake valve in dependence upon a mechanical imposition or in dependence upon an electropneumatic imposition;
• and
• a bypass valve arrangement configured to specify a foot brake input pressure to the foot brake valve, the foot brake input pressure being used as an electropneumatic imposition,
• wherein the bypass valve arrangement imposes a low pressure level upon the foot brake valve in a first switch position and the bypass valve arrangement imposes a high pressure level upon the foot brake valve in a second switch position as an electropneumatic imposition with the result that the foot brake input pressure may be specified in dependence upon the low pressure level and/or in dependence upon the high pressure level,
• wherein the bypass valve arrangement is flowably connected to a venting chamber of the foot brake valve with the result that the foot brake input pressure that is specified by the bypass valve arrangement may be passed through as an electropneumatic imposition via the venting chamber and an operating chamber of the foot brake valve directly to the axle modulators as a service brake control pressure.