Patent ID: 11885273
Assignee: VITESCO TECHNOLOGIES GMBH
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 10:
11. A device for determining a gas flow of a gas through a timer valve of a vehicle supporting an engine, the device comprising:
an engine control unit carrying out a method comprising:
detecting a pressure at a pressure sensor arranged upstream of the timer valve during an evacuation of a container arranged upstream of the timer valve;
determining, during the evacuation, the gas flow through the timer valve based on the detected pressure upstream of the timer valve, based on a temperature of the gas in the container from a temperature sensor, and based on a volume of the gas in the container;
comparing the gas flow determined during the evacuation and a gas flow model modeling gas flow through the timer valve; and
providing the gas flow model to control a combustion of the engine and adapting the gas flow model when a discrepancy between the flow determined during the evacuation and the gas flow model;

wherein an amount of flow that has flowed through the timer valve in a predetermined period of time is determined from the flow determined during the evacuation according to the following relationship:

mout of tank=∫t0tend{dot over (m)}out of tankdt 

where
{dot over (m)}out of tank is the flow through the timer valve during the evacuation and
mout of tank is the amount of flow that has flowed through the timer valve in the time period from t0 to tend.