A VEHICLE ARRANGEMENT AND METHOD FOR BRAKING

The invention relates to a vehicle arrangement for braking comprising at least a first electric motor (10) comprising a first shaft (12) being arranged to be mechanically connected to a drive shaft (55) of said vehicle (1) via a gear box (50), and a braking compressor (30) comprising a compressor shaft (32) being arranged to be mechanically connected to said first shaft (12) of said first electric motor (10) via a compressor clutch (35), such that said first shaft (12) drives said compressor shaft (32), wherein said first shaft (12) is connected to said gearbox (50) via a first motor clutch (14) and a first gearbox shaft (13), said arrangement further comprising a mass flow rate controlling means (60) arranged for controlling the air mass flow rate through said compressor (30). The invention also relates to a method for controlling a vehicle arrangement, a method for braking a shaft of an electric motor, a control unit (100), a vehicle (1000), a computer program and to a computer readable medium.