Method for detecting and describing a transient driving situation
AssigneeRobert Bosch GmbH
InventorsSebastian Lachenmaier, Johannes Zeller, Michael Bachner
Life of this patent
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Abstract
A method for detecting and describing a transient driving situation of a motor vehicle having an internal combustion engine having a boost pressure control system or intake manifold pressure control system, wherein an indicator for identifying the transient driving situation is determined from a relative boost pressure/intake manifold pressure control deviation.
Claims18
A method for detecting and describing a transient driving situation of a motor vehicle having an internal combustion engine having a boost pressure control system or intake manifold pressure control system, the method comprising:
- measuring a boost pressure/intake manifold pressure using a sensor;
- determining a relative boost pressure/intake manifold pressure control deviation using the measured boost pressure/intake manifold pressure;
- determining a dynamic indicator for identifying the transient driving situation from the relative boost pressure/intake manifold pressure control deviation;
- checking if the dynamic indicator has a negative gradient;
- filtering the dynamic indicator if the dynamic indicator has a negative gradient;
- and
- controlling at least one of an EGR system, a boost pressure/injection system controller, an electrical auxiliary compressor, and an electric motor, using the dynamic indicator.
A method for detecting and describing a transient driving situation of a vehicle with exclusively pilot-controlled boost pressure, the method comprising:
- measuring a boost pressure using a sensor;
- comparing the measured boost pressure and a reference boost pressure to provide a comparison result;
- and
- determining a dynamic indicator for identifying the transient driving situation from the comparison result between the present boost pressure and the reference boost pressure;
- checking if the dynamic indicator has a negative gradient;
- filtering the dynamic indicator if the dynamic indicator has a negative gradient and;
- controlling a boost pressure controller using the dynamic indicator.
A non-transitory computer readable medium having a computer program, which is executable by a processor, comprising:
- a program code arrangement having program code for detecting and describing a transient driving situation of a motor vehicle having an internal combustion engine having a boost pressure control system or intake manifold pressure control system, by performing the following:
- measuring a boost pressure/intake manifold pressure using a sensor;
- determining a relative boost pressure/intake manifold pressure control deviation using the measured boost pressure/intake manifold pressure;
- and
- determining a dynamic indicator for identifying the transient driving situation from the relative boost pressure/intake manifold pressure control deviation;
- checking if the dynamic indicator has a negative gradient;
- filtering the dynamic indicator if the dynamic indicator has a negative gradient;
- and
- controlling at least one of an EGR system, a boost pressure/injection system controller, an electrical auxiliary compressor, and an electric motor, using the dynamic indicator.
An electronic control unit, comprising:
- a control arrangement to detect and describe a transient driving situation of a motor vehicle having an internal combustion engine having a boost pressure control system or intake manifold pressure control system, by performing the following:
- measuring a boost pressure/intake manifold pressure using a sensor;
- determining a relative boost pressure/intake manifold pressure control deviation using the measured boost pressure/intake manifold pressure;
- determining an indicator for identifying the transient driving situation from the relative boost pressure/intake manifold pressure control deviation;
- checking if the dynamic indicator has a negative gradient;
- filtering the dynamic indicator if the dynamic indicator has a negative gradient;
- and
- controlling at least one of an EGR system, a boost pressure/injection system controller, an electrical auxiliary compressor, and an electric motor, using the dynamic indicator.
Dependencies are inferred from the claim text.