(19)
(11) EP 4 386 192 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.10.2024 Bulletin 2024/40

(43) Date of publication A2:
19.06.2024 Bulletin 2024/25

(21) Application number: 23183258.5

(22) Date of filing: 04.07.2023
(51) International Patent Classification (IPC): 
F02D 41/00(2006.01)
F02D 13/02(2006.01)
F02D 17/02(2006.01)
 F02D 13/06(2006.01)
F02D 41/12(2006.01)
(52) Cooperative Patent Classification (CPC):
F02D 13/06; F02D 41/0087; F02D 2041/0012; F02D 41/123; F02D 41/126; F02D 41/0002; F02D 2200/021; F02D 2200/0414; F02D 41/006; F02D 13/0226; F02D 41/18; F02D 2200/602; F02D 17/02
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(30) Priority: 16.12.2022 JP 2022201392

(71) Applicant: Suzuki Motor Corporation
Hamamatsu-shi, Shizuoka 432-8611 (JP)

(72) Inventor:
  • ITO, Akira
    Hamamatsu-shi, 432-8611 (JP)

(74) Representative: Haseltine Lake Kempner LLP 
Cheapside House 138 Cheapside
London EC2V 6BJ
London EC2V 6BJ (GB)

   


(54) CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE


(57) [Object]
It is to provide a control device of an internal combustion engine capable of efficiently starting the internal combustion engine at a recovery from a fuel cut.
[Solution]
There are provided: cylinders 5; an intake variable valve mechanism 3A to change valve opening and closing characteristics of intake valves 14 of the cylinders; an exhaust variable valve mechanism 3B to change valve opening and closing characteristics of exhaust valves 24 of the cylinders; and a control unit 51 to perform an exhaust introduction control of respectively closing and opening, while a fuel-supply to the cylinder(s) is stopped, the intake and exhaust valves using the intake and exhaust variable valve mechanisms. If there is an all-cylinders fuel cut request for stopping the fuel-supply to all the cylinders, the control unit introduces a fresh air into all the cylinders and thereafter, performs the exhaust introduction control.







Search report









Search report