| 摘要 |
PROBLEM TO BE SOLVED: To compute continuous hydraulic control torque while combining accuracy equivalent to estimated output torque in a steady time and responsiveness equivalent to target output torque in a transient time without determining the transient time or the steady time. SOLUTION: A differenceΔT<SB>E</SB>(=T<SB>E</SB>es-T<SB>E</SB>mod1) between estimated engine torque T<SB>E</SB>es and first model output torque T<SB>E</SB>mod1 computed based on final target engine torque T<SB>E</SB>req from a first engine model having a loss time T<SB>L</SB>and a delay is allowed to pass through a low-pass filter LPF to extract a low frequency componentΔT<SB>E</SB>low of the differenceΔT<SB>E</SB>, and torque reflecting the low frequency componentΔT<SB>E</SB>low (=K×ΔT<SB>E</SB>; K is a gain of the low-pass filter LPF) of the differenceΔT<SB>E</SB>, in second model output torque T<SB>E</SB>mod2 computed based on target engine torque T<SB>E</SB>* from a second engine model not having a loss time TL but having a delay, is computed as hydraulic control torque T<SB>E</SB>c (=T<SB>E</SB>mod2+ΔT<SB>E</SB>low). COPYRIGHT: (C)2011,JPO&INPIT |
