Method for operating an internal combustion engine
First Claim
1. A method for operating an internal combustion engine, the internal combustion engine having at least one cylinder and a cylinder pressure sensor allocated to the cylinder, the method comprising:
- acquiring a cylinder pressure by the cylinder pressure sensor;
checking whether the cylinder pressure reaches a prespecifiable threshold value;
when the threshold value is reached, inferring an angular position associated with the threshold value; and
making available the angular position for an operation of the internal combustion engine.
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Accused Products
Abstract
To enable operation of an internal combustion engine even without the signals of a phase sensor while nonetheless enabling an emergency driving function in the case of a disturbance of a crankshaft signal acquired by a crankshaft sensor, a cylinder pressure is acquired using a cylinder pressure sensor and it is checked whether the cylinder pressure reaches a prespecifiable threshold value. When the threshold value is reached or exceeded, an angular position associated with the threshold value is inferred. The angular position is then made available for an operation of the internal combustion engine.
44 Citations
22 Claims
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1. A method for operating an internal combustion engine, the internal combustion engine having at least one cylinder and a cylinder pressure sensor allocated to the cylinder, the method comprising:
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acquiring a cylinder pressure by the cylinder pressure sensor;
checking whether the cylinder pressure reaches a prespecifiable threshold value;
when the threshold value is reached, inferring an angular position associated with the threshold value; and
making available the angular position for an operation of the internal combustion engine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An internal combustion engine system, comprising:
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an internal combustion engine having at least one cylinder;
a cylinder pressure sensor allocated to the at least one cylinder; and
a control arrangement for operating the internal combustion engine, the internal combustion engine having at least one cylinder and a cylinder pressure sensor allocated to the cylinder, by performing the following;
acquiring a cylinder pressure by the cylinder pressure sensor, checking whether the cylinder pressure reaches a prespecifiable threshold value, when the threshold value is reached, inferring an angular position associated with the threshold value, and making available the angular position for an operation of the internal combustion engine.
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19. A control device system for controlling an internal combustion engine having at least one cylinder, a cylinder pressure sensor being allocated to the at least one cylinder, comprising:
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a control arrangement connectable to the cylinder pressure sensor, wherein a signal that describes a cylinder pressure from the cylinder pressure sensor may be communicated to the control arrangement;
a testing arrangement to test whether the cylinder pressure reaches a prespecified threshold value;
an angular position inferring arrangement to infer an angular position associated with the threshold value if the prespecifiable threshold value is reached. - View Dependent Claims (20)
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21. A computer readable medium having a computer program that is executable by a computing device of a control device for controlling an internal combustion engine, comprising:
program code for performing the following;
acquiring the cylinder pressure by the cylinder pressure sensor;
checking whether the cylinder pressure reaches the prespecifiable threshold value;
when the threshold value is reached, inferring the angular position associated with the threshold value; and
making available the angular position for an operation of the internal combustion engine. - View Dependent Claims (22)
Specification