METHOD FOR ASCERTAINING A TORQUE ACCURACY OF A TORQUE TRANSMITTED FROM A BELT-DRIVEN STARTER-GENERATOR OF AN INTERNAL COMBUSTION ENGINE TO THE INTERNAL COMBUSTION ENGINE
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Abstract
A method for ascertaining a torque accuracy of a torque transmitted from a belt-driven starter-generator of an internal combustion engine to the internal combustion engine, which is similar to a learning process or a calibration of the actual torque of the starter-generator with respect to a setpoint torque, includes controlling the belt-driven starter-generator to transmit a specified test torque to the internal combustion engine during a predefined test time interval during coasting down of the internal combustion engine, determining a speed variable that is dependent on a speed of the internal combustion during the test time interval, comparing the speed variable to a reference variable, and deducing the torque accuracy from this comparison.
13 Citations
21 Claims
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1-11. -11. (canceled)
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12. A method for controlling a belt-driven starter generator of an internal combustion engine, the method comprising:
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during a predefined test time interval during coasting down of the internal combustion engine; controlling, by a processor, the belt-driven starter generator to provide to the internal combustion engine a specified test torque; and determining, by a processor, a speed variable that is a function of a speed of the internal combustion engine; comparing, by the processor, the determined speed variable to a reference variable; deducing, by the processor and based on a result of the comparison, a torque accuracy at which the belt-driven starter generator provides torque to the internal combustion engine relative to setpoints specified by the processor; and based on the deduced torque accuracy, the processor controlling the belt-driven starter generator. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A non-transitory computer-readable medium on which are stored instructions that are executable by a processor and that, when executed by the processor, cause the processor to perform a method for controlling a belt-driven starter generator of an internal combustion engine, the method comprising:
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during a predefined test time interval during coasting down of the internal combustion engine; controlling the belt-driven starter generator to provide to the internal combustion engine a specified test torque; and determining a speed variable that is a function of a speed of the internal combustion engine; comparing the determined speed variable to a reference variable; deducing, based on a result of the comparison, a torque accuracy at which the belt-driven starter generator provides torque to the internal combustion engine relative to setpoints specified by the processor; and based on the deduced torque accuracy, the processor controlling the belt-driven starter generator.
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21. A device for controlling a belt-driven starter generator of an internal combustion engine, the device comprising:
processing circuitry interfacing with the belt-driven starter generator, wherein the processing circuitry is configured to; during a predefined test time interval during coasting down of the internal combustion engine; control the belt-driven starter generator to provide to the internal combustion engine a specified test torque; and determine a speed variable that is a function of a speed of the internal combustion engine; compare the determined speed variable to a reference variable; deduce, based on a result of the comparison, a torque accuracy at which the belt-driven starter generator provides torque to the internal combustion engine relative to setpoints specified by the processor; and based on the deduced torque accuracy, control the belt-driven starter generator.
Specification