Patent ID: 8155799

Claim:
A discharging signalling system of at least one dispenser of a vehicle, comprising: an indicator arranged to indicate that dispensing is allowed, wherein the indicator comprises a dynamic signal generator arranged to generate a dynamic safety signal when discharging is allowed, wherein the indicator further comprises a first static signal generator arranged to generate a static safety signal when sensors in the vehicle fulfill at least one predetermined requirement, an activation circuit arranged to discharge the dispenser, the activation circuit comprising a first safety arrangement arranged to be activated when an indication from the indicator indicates that dispensing is allowed, the activation circuit further comprising a second safety arrangement arranged to be activated when a discharge of the dispenser is indicated, and a safety processor arranged to generate a safety signal when the safety processor receives the static signal transmitted from the static signal generator and the dynamic signal, wherein the safety signal is configured to activate the first safety arrangement of the activation circuit as long as the safety signal is activated, and wherein the safety processor comprises a timer adapted to control the time length of the safety signal.