High-Pressure Fuel Pump Control Device for Internal Combustion Engine

A high-pressure fuel pump control device of an internal combustion engine for controlling a pump which comprises:

• a fluid charging passage;
• a fluid discharging passage;
• a pressurized chamber for connecting the charging passage and the discharging passage;
• a pressing member for transferring fluid in the pressurized chamber to the fluid discharging passage;
• a discharging valve provided in the discharging passage;
• a solenoid valve for opening at the time of power distribution, the solenoid valve being provided in the charging passage;
• and
• a means for calculating a power distribution start angle based on a standard signal generated in a compression stroke of the pump, wherein the means controls adjustment of the fluid discharging to the fluid discharging passage by the fluid return to the fluid charging passage from the pressurized chamber recalculates a request value for the driving signal of the solenoid valve before specified timing of a phase at which at least one of an ON signal and an OFF signal is to be outputted.

A high-pressure fuel pump control device of an internal combustion engine for controlling a pump which comprises:

• a fluid charging passage;
• a fluid discharging passage;
• a pressurized chamber for connecting the charging passage and the discharging passage;
• a pressing member for transfers fluid in the pressurized chamber to the fluid discharging passage;
• a discharging valve provided in the fluid discharging passage;
• a solenoid valve configured to open at the time of power distribution and being provided in the fluid charging passage;
• and
• a means for calculating a power distribution start angle based on a standard signal generated in a compression stroke of the pump, wherein the means controls adjustment of the fluid discharging to the fluid discharging passage by the fluid return to the fluid charging passage from the pressurized chamber and includes a phase calculation unit which calculates a power distribution start angle at which the opening of the solenoid valve is requested and a driving signal output unit which outputs a driving signal for driving the solenoid valve based on the power distribution start angle, and
• wherein the power distribution start angle is calculated based on a predetermined standard signal inputted to the control device.

A high-pressure fuel control device for an internal combustion engine, for controlling a pump, in which there is provided a fluid charging passage;

• a fluid discharging passage;
• a pressurized chamber for connecting the charging passage and the discharging passage;
• a pressing member for transferring the fluid in the pressurized chamber to the fluid discharging passage;
• a discharging valve provided in the fluid discharging passage;
• and a solenoid valve configured to open at the time of power distribution and being provided in the charging passage;
• comprising the steps of:
• outputting an ON signal for opening the solenoid valve based on a standard signal generated in the a compression stroke of the pump, and controlling adjustment of an amount of the fluid discharging to the fluid discharging passage by the fluid returning to the fluid charging passage from the pressurized chamber.