Patent ID: 8047052

Claim:
Process for the automatic determination of an emission value of a motor vehicle, with the following steps: Providing a fuel sensor, an identification device for registering an account identification, and an data storage device containing an account database itself containing at least one account information item for each of a multitude of accounts, Determination of a quantity of fuel that has been put into a tank and/or has been consumed by the motor vehicle by means of the fuel sensor, Determination of an account identification by means of the identification device, Association of the determined account identification with the determined quantity of fuel, Determination of at least one account information of an account associated with the account identification from the account database in the data storage device, wherein the account information at least comprises an account-specific emission key, whereby an emission quantity per the quantity of fuel determined is stored for the account, Determination of an emission value on the basis of the determined quantity of fuel and at least the determined account information of the account associated with the account identification.