IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0307877
(2002-12-02)
|
우선권정보 |
DE-0059017 (2001-12-01) |
발명자
/ 주소 |
- Buck, Rainer
- Damitz, Jens
- Samuelsen, Dirk
- Fehrmann, Ruediger
- Schueler, Matthias
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
7 인용 특허 :
6 |
초록
▼
A method and an apparatus for controlling an internal combustion engine are described. At least one sensor serves to detect a first variable that characterizes the pressure in the combustion chamber of at least one cylinder. A second variable, which characterizes the maximum value of the change and/
A method and an apparatus for controlling an internal combustion engine are described. At least one sensor serves to detect a first variable that characterizes the pressure in the combustion chamber of at least one cylinder. A second variable, which characterizes the maximum value of the change and/or the location of the maximum value of the change, is determined on the basis of this first variable. This second variable serves to control operating parameters of the internal combustion engine in an open-loop and/or a closed-loop manner.
대표청구항
▼
1. A method for controlling an internal combustion engine having at least one cylinder, comprising:detecting at least one first variable that characterizes a pressure in a combustion chamber of the at least one cylinder using at least one sensor;determining a second variable on the basis of the at l
1. A method for controlling an internal combustion engine having at least one cylinder, comprising:detecting at least one first variable that characterizes a pressure in a combustion chamber of the at least one cylinder using at least one sensor;determining a second variable on the basis of the at least one first variable, the second variable characterizing a change in the at least one first variable; andcontrolling operating parameters of the internal combustion engine as a function of the second variable in at least one of an open-loop manner and a closed-loop manner, including controlling an onset of at least one partial injection as a function of the second variable. 2. The method according to claim 1, further comprising:defining the second variable as a derivative of the at least one first variable. 3. The method according to claim 1, further comprising:defining an actuating variable as a function of a comparison of the second variable to a threshold value. 4. The method according to claim 1, further comprising:defining an actuating variable as a function of a comparison of the second variable to a setpoint value. 5. The method according to claim 1, further comprising:controlling a rail pressure as a function of the second variable. 6. The method according to claim 1, wherein the second variable includes at least one of a maximum value of the at least one first variable, a maximum value of a change in the at least one first variable, and a position of the maximum value of the at least one first variable. 7. The method according to claim 1, further comprising:determining at least one of a heat curve, a combustion curve, a cumulative heat curve, and a cumulative combustion curve as the second variable on the basis of the first variable. 8. The method according to claim 7, wherein the second variable characterizes at least one of a maximum value, a maximum value of a change, and a position of maximum values of at least one of the heat curve, the combustion curve, the cumulative heat curve, and the cumulative combustion curve. 9. A method for controlling an internal combustion engine having at least one cylinder, comprising:detecting at least one first variable that characterizes a pressure in a combustion chamber of the at least one cylinder using at least one sensor;determining a second variable on the basis of the at least one first variable, the second variable characterizing a change in the at least one first variable and being formed as a function of a derivative of the at least one first variable; andcontrolling operating parameters of the internal combustion engine as a function of the second variable in at least one of an open-loop manner and a closed-loop matter, including controlling a boost pressure as a function of the second variable. 10. A method for controlling an internal combustion engine having at least one cylinder, comprising:detecting at least one first variable that characterizes a pressure in a combustion chamber of the at least one cylinder using at least one sensor;determining a second variable on the basis of the at least one first variable, the second variable characterizing a change in the at least one first variable and being formed as a function of a derivative of the at least one first variable; andcontrolling operating parameters of the internal combustion engine as a function of the second variable in at least one of an open-loop manner and a closed-loop matter, including controlling an air variable that characterizes an air quantity delivered to the internal combustion engine as a function of the second variable. 11. A method for controlling an internal combustion engine having at least one cylinder, comprising:detecting at least one first variable that characterizes a pressure in a combustion chamber of the at least one cylinder using at least one sensor;determining a second variable on the basis of the at least one first variable, the second variable characterizing a chance in the at leas t one first variable; andcontrolling operating parameters of the internal combustion engine as a function of the second variable in at least one of an open-loop manner and a closed-loop matter, including controlling, as a function of the second variable, an onset of at least one of: i) a pre-injection, ii) at least one main injection, and iii) at least one post-injection. 12. A method for controlling an internal combustion engine, comprising:determining a variable that characterizes a change in pressure in a combustion chamber;comparing the variable to a setpoint value; anddefining an onset of at least one pre-injection on the basis of the comparison to the setpoint value. 13. A method for controlling an internal combustion engine, comprising:determining a variable that characterizes a change in pressure in a combustion chamber;comparing the variable to a setpoint value; anddefining an onset of at least one pre-injection on the basis of the comparison to the setpoint value,wherein the variable includes at least one of a signal of a solid-borne sound sensor, a signal of an ion current sensor, and a variable derived from those signals. 14. An apparatus for controlling an internal combustion engine, comprising:at least one sensor for detecting a first variable that characterizes a pressure in a combustion chamber of at least one cylinder; andan arrangement for determining a second variable on the basis of the first variable, the second variable characterizing a change in the first variable,as a function of the second variable, in at least one of an open-loop manner and a closed-loop manner, the arrangement controlling an onset of at least one partial injection. 15. A method for controlling an internal combustion engine, comprising:detecting at least one first variable that characterizes a pressure in a combustion chamber of the at least one cylinder using at least one sensor;determining a second variable on the basis of the at least one first variable, the second variable characterizing a change in the at least one first variable;controlling an onset of a fuel injection as a function of the second variable.
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