Controller and method for controlling vehicle tyre pressure

Provided is a controller (120) for controlling the pressure of one or more tyres (314) of a first vehicle (310), the controller (120) comprising: receiving means (122) to: receive reactive input data defining current operating conditions of the first vehicle (310); receive predictive input data defining anticipated operating conditions of the first vehicle (310); processor means (124) to: calculate one or more pressure values for the one or more tyres (314) of the first vehicle (310) to adapt the tyre pressures to be ready for anticipated operating conditionsusing the received reactive input data and received predictive input data; and output means (126) arranged to output the one or more calculated pressure values to an active tyre inflation apparatus (130) to proactively adjust the tyre pressure of one or more tyres (314) of the first vehicle (310). A method (400) and computer-readable medium are also provided.