Fuel additives dosing method for use in motor vehicle, involves determining injection period for additive, and opening valve staying in connection with pressurized additive tank over period, which corresponds to determined injection period

摘要

The method involves providing a pressurized additive tank with an additive and a fuel gas in the tank, and determining pressure in a fuel additive system (20) of a fuel supply system (12). An injection period for the additive is determined related to the determined pressure. A valve that is staying in connection with the pressurized additive tank is opened over a period, which corresponds to the determined injection period. Independent claims are also included for the following: (1) a fuel additive system (2) a fuel supply system with a fuel additive system (3) a method of maintaining a vehicle.