Method and device for starting an internal combustion engine
First Claim
1. A device for operating an internal combustion engine having a starter, which is situated on a crankshaft of the internal combustion engine, comprising:
- a first setpoint selection device adapted to specify a first threshold value;
a second setpoint selection device adapted to specify a second threshold value;
a first determination device adapted to determine a first variable, which characterizes a run-down of the internal combustion engine;
a second determination device adapted to determine a second variable, which characterizes a run-down of the internal combustion engine;
a comparator adapted to compare at least of (a) the first variable to the specified first threshold value and (b) the second variable to the specified second threshold value; and
a third setpoint selection device adapted to operate the starter by the crankshaft as a function of the comparison.
2 Assignments
0 Petitions
Accused Products
Abstract
In a method, a device, a computer program and a computer program product for operating an internal combustion engine having a starter: a first threshold value and a second threshold value are specified; a first variable and a second variable are determined, which characterize the operating state of the internal combustion engine; the first variable is compared to the specified first threshold value and the second variable is compared to the specified second threshold value; and the starter starting, or not starting, the internal combustion engine as a function of the comparison result.
11 Citations
17 Claims
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1. A device for operating an internal combustion engine having a starter, which is situated on a crankshaft of the internal combustion engine, comprising:
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a first setpoint selection device adapted to specify a first threshold value; a second setpoint selection device adapted to specify a second threshold value; a first determination device adapted to determine a first variable, which characterizes a run-down of the internal combustion engine; a second determination device adapted to determine a second variable, which characterizes a run-down of the internal combustion engine; a comparator adapted to compare at least of (a) the first variable to the specified first threshold value and (b) the second variable to the specified second threshold value; and a third setpoint selection device adapted to operate the starter by the crankshaft as a function of the comparison. - View Dependent Claims (2, 3)
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4. A method for operating an internal combustion engine having a starter, comprising:
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specifying a first threshold value and a second threshold value; determining a first variable and a second variable, which characterize an operating state of the internal combustion engine; at least one of (a) comparing the first variable to the specified first threshold value and (b) comparing the second variable to the specified second threshold value; and one of (a) starting and (b) not starting, by the starter, the internal combustion engine as a function of the comparison, wherein an incremental encoder is situated on a crankshaft in the internal combustion engine, and a time period is selected as the first variable that elapses after a first gear tooth of the incremental encoder has been detected. - View Dependent Claims (5, 6)
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7. A method for operating an internal combustion engine having a starter, comprising:
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specifying a first threshold value and a second threshold value; determining a first variable and a second variable, which characterize an operating state of the internal combustion engine; at least one of (a) comparing the first variable to the specified first threshold value and (b) comparing the second variable to the specified second threshold value; and one of (a) starting and (b) not starting, by the starter, the internal combustion engine as a function of the comparison, wherein the first specified threshold value corresponds to a time period, which is selected as a function of at least one of (a) a rotational speed of the crankshaft and (b) a position of the crankshaft, and wherein the time period ranges between 10 ms and 100 ms.
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8. A method for operating an internal combustion engine having a starter, comprising:
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specifying a first threshold value and a second threshold value; determining a first variable and a second variable, which characterize an operating state of the internal combustion engine; at least one of (a) comparing the first variable to the specified first threshold value and (b) comparing the second variable to the specified second threshold value; and one of (a) starting and (b) not starting, by the starter, the internal combustion engine as a function of the comparison, wherein the second variable is selected as a function of a difference in rotational speeds between the starter and a crankshaft. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification