US 7,571,711 B2
Engine controller and controlling method
Shinya Sato, Hitachinaka (Japan); Shinji Nakagawa, Hitachinaka (Japan); Hiromu Kakuya, Hitachi (Japan); Toshimichi Minowa, Mito (Japan); and Mamoru Nemoto, Hitachiota (Japan)
Assigned to Hitachi, Ltd., Tokyo (Japan)
Appl. No. 11/630,685
PCT Filed Aug. 13, 2004, PCT No. PCT/JP2004/011942
§ 371(c)(1), (2), (4) Date Dec. 27, 2006,
PCT Pub. No. WO2006/016423, PCT Pub. Date Feb. 16, 2006.
Prior Publication US 2008/0066718 A1, Mar. 20, 2008
Int. Cl. F02D 41/18 (2006.01); G01F 1/00 (2006.01)
U.S. Cl. 123—350  [123/361; 701/110] 9 Claims
OG exemplary drawing
 
1. An engine controller for controlling an engine mounted with an electronically controlled throttle, comprising:
a means for, when the throttle is fully open, correcting a maximum torque set value based on the ratio between the maximum air volume set value under fully-open throttle conditions and an actual maximum air volume detected by an intake air volume meter; and
a means for correcting both the relation between the degree of accelerator opening and target torque and the relation between the target torque (target air volume) and the degree of target throttle opening based on the corrected maximum torque set value.