US 12,078,118 B2
Control method and control device for internal combustion engine for vehicle
Tetsuya Nishiyama, Kanagawa (JP); Daigo Kishi, Kanagawa (JP); Tatsuo Nakano, Kanagawa (JP); Seiichirou Takahashi, Isehara (JP); Koji Saito, Machida (JP); Yukiyoshi Inuta, Isehara (JP); Takao Arimatsu, Ebina (JP); and Yasuhiro Endo, Isehara (JP)
Assigned to Nissan Motor Co., Ltd., Yokohama (JP); and Jatco Ltd., Fuji (JP)
Appl. No. 18/262,202
Filed by Nissan Motor Co., Ltd., Yokohama (JP); and JATCO LTD, Fuji (JP)
PCT Filed Nov. 29, 2021, PCT No. PCT/JP2021/043519
§ 371(c)(1), (2) Date Jul. 20, 2023,
PCT Pub. No. WO2022/158119, PCT Pub. Date Jul. 28, 2022.
Claims priority of application No. 2021-008383 (JP), filed on Jan. 22, 2021.
Prior Publication US 2024/0084753 A1, Mar. 14, 2024
Int. Cl. F02D 41/02 (2006.01); F02D 41/10 (2006.01)
CPC F02D 41/022 (2013.01) [F02D 41/10 (2013.01); F02D 2200/1002 (2013.01); F02D 2200/501 (2013.01); F02D 2200/602 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A control method for a vehicle having an internal combustion engine connected to an automatic transmission via a torque converter with a lockup device, the control method comprising:
limiting a torque of an internal combustion engine to a torque limit value based on a speed difference between an input rotational speed and an output rotational speed of the torque converter during acceleration in a non-lockup state, and
prohibiting torque-limiting upon a prescribed condition being met.