Injection control device
AssigneeDenso Corporation
InventorsRyo FUKAYA, Yohei SUGANUMA
Life of this patent
Estimating the term…
Abstract
An injection control device includes a control IC that obtains, as sample data, a time change of a voltage generated when a fuel injection valve is driven, and determines a valve closing timing at which injection of fuel from the fuel injection valve is stopped by calculating a degree of variation from the sample data of the voltage. Further, the control IC changes the calculation of the degree of variation when a predetermined condition is satisfied.
Claims14
An injection control device for controlling injection of fuel into an internal combustion engine by driving a fuel injection valve with an electric current, the injection control device comprising:
- an obtainer obtaining as sample data a time change of a voltage generated when the fuel injection valve is driven;
- a calculator calculating a valve closing timing to stop the injection of fuel from the fuel injection valve by calculating a degree of variation from the sample data of the voltage;
- and
- a changer changing the calculation of the degree of variation when a predetermined condition is satisfied.
An injection control device for controlling injection of fuel into an internal combustion engine by driving a fuel injection valve with an electric current, the injection control device comprising:
- a processor;
- and
- a non-transitory computer-readable storage medium,
- wherein the injection control device is configured to:
- obtain as sample data a time change of a voltage generated when the fuel injection valve is driven;
- calculate a valve closing timing to stop the injection of fuel from the fuel injection valve by calculating a degree of variation from the sample data of the voltage;
- and
- change the calculation of the degree of variation when a predetermined condition is satisfied.
Dependencies are inferred from the claim text.