System for display of available fuel volume in fuel tank e.g. in motor vehicle, has first and second indicating device and second indicating device indicates second available fuel volume which has lower indicating accuracy than first device

摘要

System has the first indicating device displays the first fuel volume available in the vehicle fuel tank with high indicating accuracy. The second indicating device displays second available fuel volume which has lower indicating accuracy than the first indicating device. A level measuring instrument, which measures the existing fuel volume with high accuracy above measurability limit (MG). A switching device, which switches down the first indicating device to the second indicating or switches to the first indicating device, as long as the existing fuel volume falls below an upper threshold value. An independent claim is included for method for indicating available fuel volume in the fuel tank.