Method of operation for an internal combustion engine
First Claim
1. Method of operation for an internal combustion engine (1) whose output power can be controlled by means of a controlling parameter (T), in which an engine characteristic curve (11, 12) which, at a value of the controlling parameter (T) which corresponds to a maximum output power, defines the output power (P) as a function of the engine'"'"'s speed of revolution (ω
- ), has an ascending part (12) at low speeds of revolution and a descending part (11) at high speeds of revolution, characterised in that if, when the engine (1) is operating, the speed of revolution exceeds a first upper limiting value (ω
max,0) at the value of the controlling parameter which corresponds to the maximum output power, a first value (T1(ω
)) of the controlling parameter (T) is set which corresponds to a reduced output power.
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Abstract
A method of operation for an internal combustion engine (1) whose output power can be controlled by means of a controlling parameter (T), in which an engine characteristic curve (11, 12) which, at a value of the controlling parameter (T) which corresponds to a maximum output power, specifies the output power (P) as a function of the engine'"'"'s speed of revolution (ω), has an ascending part (12) at low speeds of revolution and a descending part (11) at high speeds of revolution, is characterised in that if, when the engine (1) is operating, the speed of revolution (ω) exceeds a first upper limiting value (ωmax,0) at the value of the controlling parameter which corresponds to the maximum output power, a first value (T1(ω)) of the controlling parameter (T) is set which corresponds to a reduced output power.
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Citations
11 Claims
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1. Method of operation for an internal combustion engine (1) whose output power can be controlled by means of a controlling parameter (T), in which an engine characteristic curve (11, 12) which, at a value of the controlling parameter (T) which corresponds to a maximum output power, defines the output power (P) as a function of the engine'"'"'s speed of revolution (ω
- ), has an ascending part (12) at low speeds of revolution and a descending part (11) at high speeds of revolution, characterised in that if, when the engine (1) is operating, the speed of revolution exceeds a first upper limiting value (ω
max,0) at the value of the controlling parameter which corresponds to the maximum output power, a first value (T1(ω
)) of the controlling parameter (T) is set which corresponds to a reduced output power. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- ), has an ascending part (12) at low speeds of revolution and a descending part (11) at high speeds of revolution, characterised in that if, when the engine (1) is operating, the speed of revolution exceeds a first upper limiting value (ω
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9. Control unit for an internal combustion engine, characterised in that output power can be controlled by means of a controlling parameter (T), in which an engine characteristic curve (11, 12) which, at a value of the controlling parameter (T) which corresponds to a maximum output power, defines the output power (P) as a function of the engine'"'"'s speed of revolution (ω
- ), has an ascending part (12) at low speeds of revolution and a descending part (11) at high speeds of revolution, characterised in that if, when the engine (1) is operating, the speed of revolution exceeds a first upper limiting value (ω
max,0) at the value of the controlling parameter which corresponds to the maximum output power, a first value T1(ω
) of the controlling parameter T is set which corresponds to a reduced output power. - View Dependent Claims (10)
- ), has an ascending part (12) at low speeds of revolution and a descending part (11) at high speeds of revolution, characterised in that if, when the engine (1) is operating, the speed of revolution exceeds a first upper limiting value (ω
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11-13. -13. (canceled)
Specification