Patent ID: 7866761

Claim:
A braking system for vehicles, comprising: at least one first brake circuit; and at least one second brake circuit, wherein the at least one first brake circuit and the at least one second brake circuit each have an electrical control circuit, which respectively has an electronic control unit and its own power supply device, and brake actuating devices which are activatable by the electronic control units, at least one of the brake actuating devices being activatable by more than one of the electronic control units; wherein the brake circuits are electrically activatable via a foot brake valve, and the foot brake valve has two electrical braking transmitter devices which are each connected to the electronic control units so that they are DC-isolated, wherein the two power supply devices are batteries, a second battery being connected to a first battery via a DC-isolation device and being chargeable via the first battery, and wherein the DC-isolation device has an electronic monitoring unit to monitor states of charge of the batteries.