IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0049914
(2002-02-20)
|
우선권정보 |
JP-0309557 (2000-10-10); JP-0306484 (2000-10-05) |
국제출원번호 |
PCT/JP01/07920
(2001-09-12)
|
국제공개번호 |
WO02/29230
(2002-04-11)
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발명자
/ 주소 |
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출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
9 인용 특허 :
8 |
초록
▼
A fresh air amount of an engine (1) is controlled by a variable nozzle (53) of a turbocharger (50). A controller (41) calculates an open loop control value of a drive signal of a variable nozzle (53) based on the running state of the engine (1). A target intake fresh air amount of the engine (1) is
A fresh air amount of an engine (1) is controlled by a variable nozzle (53) of a turbocharger (50). A controller (41) calculates an open loop control value of a drive signal of a variable nozzle (53) based on the running state of the engine (1). A target intake fresh air amount of the engine (1) is calculated based on the running state, and a processing value obtained by smoothing the target intake fresh air amount value is calculated (S132). A feedback control value of the drive signal is calculated so that a real intake fresh air amount coincides with the processing value (S367). The variable nozzle (53) is controlled based on the open loop value and feedback control value. By using the processing value as the target value of the feedback control, unstable factors in feedback control resulting from the time delay from operation of the variable nozzle (53) to change of the intake fresh air amount aspirated by the engine (1), are eliminated.
대표청구항
▼
A fresh air amount of an engine (1) is controlled by a variable nozzle (53) of a turbocharger (50). A controller (41) calculates an open loop control value of a drive signal of a variable nozzle (53) based on the running state of the engine (1). A target intake fresh air amount of the engine (1) is
A fresh air amount of an engine (1) is controlled by a variable nozzle (53) of a turbocharger (50). A controller (41) calculates an open loop control value of a drive signal of a variable nozzle (53) based on the running state of the engine (1). A target intake fresh air amount of the engine (1) is calculated based on the running state, and a processing value obtained by smoothing the target intake fresh air amount value is calculated (S132). A feedback control value of the drive signal is calculated so that a real intake fresh air amount coincides with the processing value (S367). The variable nozzle (53) is controlled based on the open loop value and feedback control value. By using the processing value as the target value of the feedback control, unstable factors in feedback control resulting from the time delay from operation of the variable nozzle (53) to change of the intake fresh air amount aspirated by the engine (1), are eliminated. folding devices (43). 10. A method as claimed in claim 5, wherein said first tabs (25, 26) are folded onto said group (4) of cigarettes to form a right-angle with said rear panel (13). 11. A machine for producing hinged-lid packets of cigarettes, wherein a blank (8), comprising a longitudinal axis (B), a rear panel (13), first tabs (25, 26) connected to said rear panel (13), and second and third tabs (30, 32) connected to said first tabs (25, 26), is closed about a group of cigarettes; said machine comprising a continuous first conveyor (36) having pockets (45) and for feeding said blank (8) along a given path (P1) with the axis (B) of the blank crosswise to said path (P1); and fixed folding means (43) located along said path (P1) for folding inwards the second and third tabs (30, 32) with respect to the first tabs (25, 26); each pocket (45) having walls (48) for folding said first, second and third tabs (25, 26, 30, 32) with respect to said rearpanel (13) so that said second and third tabs (30, 32) are so positioned as to be intercepted by said fixed folding devices (43) and to be folded inwards with respect to the first tabs (25, 26). 12. A machine as claimed in claim 11, wherein said first tabs (25, 26) are hinged to said rear panel (13) about first bend lines (27) parallel to said longitudinal axis (B); and in that said second and third tabs (30, 32) are hinged to said first tabs (25, 26) about respective second and third bend lines (31, 33) perpendicular to said longitudinal axis (B); said walls (48) rotating about respective axes (48a) crosswise to said path (P1). 13. A machine as claimed in claim 12, wherein said fixed folding devices (43) extend parallel to said path (P1) to fold said second and third tabs (30, 32) at a right-angle with respect to the first tabs (25, 26). 14. A machine as claimed in claim 13, and comprising a third conveyor (40) for transferring a group (4) of cigarettes onto the rear panel (13) of said blank (8) after said second and third tabs (30, 32) have been folded at a right-angle with respect to the first tabs (25, 26). 15. A machine as claimed in claim 12, wherein each pocket (45) comprises a bottom wall (47) for retaining the rear panel (13); said walls (48) rotating about said axes (48a) with respect to said bottom wall to fold said first tabs (25, 26) at a given angle of less than 90° with respect to the rear panel (13), and to set said second and third tabs (30, 32) to said intercept position. 16. A machine as claimed in claim 15, comprising a second conveyor (38) for feeding said blanks (8) to said first conveyor (36); said second conveyor (38) comprising a number of heads (50) for conveying respective flat blanks (8); and each head (50) being inserted inside a respective pocket (45) to transfer the blank (8) and simultaneously fold said first tabs (25, 26) at said given angle with respect to the rear panel (13). 17. A machine as claimed in claim 15, wherein said walls (48) are movable about respective axes (48a) to modify the angle formed between said first tabs (25, 26) and the rear panel (13), before said group (4) of cigarettes is loaded onto said rear panel (13). 18. A machine as claimed in claim 12, wherein said fixed folding devices (43) are two helical folding devices (43) located a given distance apart in a direction crosswise to the given path (P1), so that the walls (48) of each pocket (45) travel between said helical folding devices (43). 19. A method of producing hinged-lid packets of cigarettes on a continuous automatic machine, whereby a blank (8) is closed about a group (4) of cigarettes, the blank (8) comprising a longitudinal axis (B), a rear panel (13), first lateral tabs (25, 26) connected at opposite sides to said rear panel (13), and second and third tabs (30, 32) connected at opposite sides to each said first lateral tab (25, 26); the method comprising the step of feeding said blank (8) continuously along a given path (P1); folding said first, second and third tab
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