CONTROL DEVICE FOR ENGINE WITH MECHANICAL SUPER CHARGER

Japanese Patent JP3812156

B2

PROBLEM TO BE SOLVED: To enhance combustibility by raising the temperature of intake air by making use of a mechanical super charger before catalytic warming-up and increasing the quantity of intake air, to increase the flow of intake air within a cylinder, and thereby enhance catalytic warming-up performance by increasing the quantity of retard for ignition timing, raising combustion temperature, increasing the quantity of exhaust gas and the like.
SOLUTION: Ignition timing is retarded by a specified time by an ignition timing control means 52 before catalytic warming-up is finished, and concurrently, an electromagnetic clutch 21 and a super charger bypass valve are controlled in such a way that super charging is performed by a mechanical super charger using a clutch control means 53 and an ABV control means 54 even in a low loading before the catalytic warming-up. Furthermore, each throttle valve provided in an independent intake passage of each cylinder is controlled by a throttle valve control means 56 in such a way that each passage is throttled before the catalytic warming-up.

Jun Sasaki
Keiji Araki

JP20556798A

August 23, 2006

July 21, 1998

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Mazda Corporation Inc

F02B33/00; F02D43/00; F02B39/12; F02D9/02; F02D13/02; F02D23/00; F02D29/02; F02D41/02; F02D41/06; F02D45/00; F02P5/15; (IPC1-7): F02D43/00; F02B33/00; F02B39/12; F02D9/02; F02D13/02; F02D23/00; F02D29/02; F02D41/02; F02D41/06; F02D45/00; F02P5/15

JP4153524A
JP5026049A
JP5133235A
JP10169488A
JP9317520A
JP1310123A
JP544480A
JP6394079A

Etsushi Kotani
Kyuichi Ueki
Jiro Higuchi

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