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AssigneeContinental Automotive GmbH
InventorJanos Radeczky
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A method for controlling pressure in a high-pressure region of an internal combustion engine includes adjusting a fuel outflow from the high-pressure region into a low-pressure region by means of an injector, which has a control valve adjusted by a piezo actuator and a control chamber. The method includes charging the piezo actuator by a first signal such that the control valve is moved from a closed position to a partially open position and fuel flows out from the high-pressure region into the low-pressure region, discharging the piezo actuator by a second signal such that the control valve is moved into the closed position, and partially discharging the piezo actuator by a third signal after the first signal and before the second signal. The method provides pressure control in the high-pressure region via an injector with high reliability even at high rail pressure.
A method for controlling pressure in a high-pressure region of an internal combustion engine by adjusting the quantity of fuel flowing out from the high-pressure region into a low-pressure region via an injector that comprises a control valve adjusted by a piezo actuator, and a control chamber, wherein the method comprises:
A control system of a motor vehicle having an internal combustion engine with a high-pressure region and a low-pressure region
Dependencies are inferred from the claim text.