Commercial vehicle comprising a pneumatic system including: - low-pressure equipments operating with compressed air at pressures in a low-pressure range, and high-pressure equipments operating with compressed air at pressures in a high-pressure range, the high-pressure range being higher than the low pressure range, - an air management system comprising: an air compressor delivering compressed air, a low-pressure circuit connected to the air compressor and configured to store and supply compressed air within the low-pressure range, the low-pressure equipments being connected to the low-pressure circuit, a high-pressure circuit connected to the air compressor and configured to store and supply compressed air within the high-pressure range, the high-pressure equipments being connected to the high-pressure circuit, wherein the pneumatic system further comprises a braking system presenting a usual braking operation with compressed air at pressures in the low-pressure range, and an emergency braking operation with compressed air at pressures in the high-pressure range, the commercial vehicle being characterized in that the braking system is connected to the low-pressure circuit and to the high-pressure circuit, the air management system being configured to supply the braking system: - for the usual braking operation, with compressed air from the low pressure circuit, and - for the emergency braking operation, with compressed air from the high-pressure circuit. - low-pressure equipments operating with compressed air at pressures in a low-pressure range, and high-pressure equipments operating with compressed air at pressures in a high-pressure range, the high-pressure range being higher than the low pressure range, - an air management system comprising: an air compressor delivering compressed air, a low-pressure circuit connected to the air compressor and configured to store and supply compressed air within the low-pressure range, the low-pressure equipments being connected to the low-pressure circuit, a high-pressure circuit connected to the air compressor and configured to store and supply compressed air within the high-pressure range, the high-pressure equipments being connected to the high-pressure circuit, wherein the pneumatic system further comprises a braking system presenting a usual braking operation with compressed air at pressures in the low-pressure range, and an emergency braking operation with compressed air at pressures in the high-pressure range, the commercial vehicle being characterized in that the braking system is connected to the low-pressure circuit and to the high-pressure circuit, the air management system being configured to supply the braking system: - for the usual braking operation, with compressed air from the low pressure circuit, and - for the emergency braking operation, with compressed air from the high-pressure circuit. an air compressor delivering compressed air, a low-pressure circuit connected to the air compressor and configured to store and supply compressed air within the low-pressure range, the low-pressure equipments being connected to the low-pressure circuit, a high-pressure circuit connected to the air compressor and configured to store and supply compressed air within the high-pressure range, the high-pressure equipments being connected to the high-pressure circuit, wherein the pneumatic system further comprises a braking system presenting a usual braking operation with compressed air at pressures in the low-pressure range, and an emergency braking operation with compressed air at pressures in the high-pressure range, the commercial vehicle being characterized in that the braking system is connected to the low-pressure circuit and to the high-pressure circuit, the air management system being configured to supply the braking system: - for the usual braking operation, with compressed air from the low pressure circuit, and - for the emergency braking operation, with compressed air from the high-pressure circuit. - for the usual braking operation, with compressed air from the low pressure circuit, and - for the emergency braking operation, with compressed air from the high-pressure circuit.