Mitsubishi Fuso Truck & Bus Corporation

Mitsubishi Fuso and Bus Corporation

Yasuhiro Tsutsui

Hideyuki Takahashi

Yoshinori Takahashi

Yoshinaka Takeda

Nobuhiro Kondo

Minehiro Murata

Katsunori Umezawa

An engine control system includes an EGR devicewhich connects an exhaust passage Ex and an intake passage I and has an EGR valve; an intake throttle valveplaced in the intake passage I; and an engine control unit which is provided with an engine operation data calculator Aaccumulating mileages of a vehicle or an engine operation period, a fuel injection controller Acontrolling a fuel injection amount and a fuel injection timing, an EGR controller Acontrolling an opening of the EGR valve; a throttle valve controller Acontrolling an opening of the intake throttle valve; and an EGR passage cleaning controller Awhich delays a fuel injection timing Tn, increases an opening &#x3b2; g of the EGR valve, and reduces an opening &#x3b8; s of the intake throttle valve when the total mileage or the total operation period calculated by the engine operation data calculator becomes equal to a predetermined threshold.

Engine control system

A forced regeneration device which performs regeneration of a particulate filter includes oxidation catalysts () disposed upstream from the particulate filter or in said particulate filter and a burner () located upstream from the oxidation catalysts and operable switching between a combustion mode for combusting a fuel spray by inflammation to raise temperature of exhaust gases in an exhaust passage and a fuel supply mode for supplying only a fuel spray to the exhaust passage without inflammation. After the burner operates in the combustion mode, the burner operation is switched to the fuel supply mode.

Exhaust emission control device for an internal combustion engine

Growing community of inventors

Tokyo, Japan

Yasuhiro Tsutsui