公开(公告)号：US20190170108A1

公开(公告)日：2019-06-06

申请号：US16152036

申请日：2018-10-04

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yuya YOSHIKAWA ,  lsao NAKAJIMA ,  Akihiro KATAYAMA ,  Ryo SUZUKI ,  Sohichi IMAI ,  Eiichiro KIDO

IPC: F02P5/15

Abstract: A controller learns the degree of variation in the injection amount of fuel injection valves provided for respective cylinders when the fuel injection valves are operated to control the air-fuel ratios of the respective cylinders to be equal to each other. A first advancement requesting process causes the request for the ignition timing to be more advanced when the degree of variation is great than when the degree of variation is small. A second advancement requesting process causes the request for the ignition timing to be more advanced when the torque fluctuation amount of the internal combustion engine is than when the torque fluctuation amount is small. The ignition control process controls the ignition timing in accordance with the request of the more advanced one of the first advancement requesting process and the second advancement requesting process.

公开(公告)号：US20180230931A1

公开(公告)日：2018-08-16

申请号：US15880929

申请日：2018-01-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Sohichi IMAI ,  Masanao IDOGAWA

IPC: F02D41/40

CPC classification number: F02D41/40 ,  F02D2200/0602 ,  F02D2200/0614 ,  F02D2250/12 ,  F02D2250/14 ,  F02M37/043 ,  F02M51/061 ,  Y02T10/44

Abstract: A fuel injection controller for an internal combustion engine includes first and second calculation sections. The first calculation section acquires a fuel pressure at a predetermined point of time before an injection starting point of time and calculates an injection time using the acquired fuel pressure. The second calculation section acquires a fuel pressure when the injection starting point of time arrives and calculates the injection time by using the acquired fuel pressure. The controller is configured to, before starting the energization to the injector, set a point of time to stop energization to an injector based on a calculation result of the injection time by the first calculation section. The controller is also configured to, after starting the energization to the injector, reset the point of time to stop the energization to the injector based on a calculation result of the injection time by the second calculation section.