(19)
(11) EP 1 447 546 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
27.09.2006 Bulletin 2006/39

(43) Date of publication A2:
18.08.2004 Bulletin 2004/34

(21) Application number: 04003045.4

(22) Date of filing: 11.02.2004
(51) International Patent Classification (IPC): 
F02D 11/10(2006.01)
F02D 41/30(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 12.02.2003 JP 2003034232

(71) Applicant: DENSO CORPORATION
Kariya-city, Aichi-pref. 448-8661 (JP)

(72) Inventors:
  • Takahashi, Tomohiro
    Kariya-city Aichi-pref. 448-8661 (JP)
  • Ishizuka, Kouji
    Kariya-city Aichi-pref. 448-8661 (JP)
  • Ooshima, Keiji
    Kariya-city Aichi-pref. 448-8661 (JP)

(74) Representative: TBK-Patent 
Bavariaring 4-6
80336 München
80336 München (DE)

   


(54) Engine control unit including phase advance compensator


(57) A peak gain of target torque with respect to a change in an accelerator position from 40% to 70% is expressed by a constant K. A time constant of phase advance compensation corresponding to a period for the target torque to change from a peak value to 63.2% of the peak value in the case where the accelerator position is changed from 40% to 70% is expressed by a constant ω. A target torque response with respect to the change in the accelerator position is calculated through a phase advance compensator (26) by using the peak gain K and the time constant ω, which have physical meanings. Thus, the target torque response with respect to the change in the accelerator position can be defined quantitatively, directly based on an elapsed time.







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