Method and device for controlling an air charge of an internal combustion engine
AssigneeRobert Bosch GmbH
InventorsLea Conen, Christoph Schweizer, Fei Sun
Life of this patent
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Abstract
A method for operating an internal combustion engine based on a control of a supplied fresh air quantity, the method comprising the following steps: implementing an adjustment of a throttle valve for the control of the supplied fresh air quantity as a function of a setpoint mass flow via the throttle valve; determining the setpoint mass flow via the throttle valve according to a differential equation, which is a function of a control deviation ascertained as a function of a setpoint intake manifold pressure and an actual intake manifold pressure.
Claims8
A method for operating an internal combustion engine based on a control of a supplied fresh air quantity, the method comprising the following steps:
- determining a setpoint mass flow for a throttle valve using a differential equation which is a function of a modified setpoint intake manifold pressure and an actual intake manifold pressure, wherein the modified setpoint intake manifold pressure is calculated using a predefined setpoint intake manifold pressure and a transfer function, and the actual intake manifold pressure is measured using an intake manifold pressure sensor;
- and
- implementing an adjustment of the throttle valve for the control of the supplied fresh air quantity as a function of the setpoint mass flow.
A device for operating an internal combustion engine based on a control of a supplied fresh air quantity, the device configured to:
- determine a setpoint mass flow for a throttle valve using a differential equation which is a function of a modified setpoint intake manifold pressure and an actual intake manifold pressure, wherein the modified setpoint intake manifold pressure is calculated using a predefined setpoint intake manifold pressure and a transfer function, and the actual intake manifold pressure is measured using an intake manifold pressure sensor;
- and
- implement an adjustment of the throttle valve for the control of the supplied fresh air quantity as a function of the setpoint mass flow.
A non-transitory machine-readable memory medium on which are stored instructions for operating an internal combustion engine based on a control of a supplied fresh air quantity, the instructions, when executed by a data processing device, causing the data processing device to perform the following steps:
- determining a setpoint mass flow for a throttle valve using a differential equation which is a function of a modified setpoint intake manifold pressure and an actual intake manifold pressure, wherein the modified setpoint intake manifold pressure is calculated using a predefined setpoint intake manifold pressure and a transfer function, and the actual intake manifold pressure is measured using an intake manifold pressure sensor;
- and
- implementing an adjustment of the throttle valve for the control of the supplied fresh air quantity as a function of the setpoint mass flow.
Dependencies are inferred from the claim text.