| abstract |
Since sulfur contained in the exhaust gas is absorbed by the NOx adsorption catalyst, the NOx adsorption catalyst deteriorates with time, but there is a problem that fuel economy is damaged by an increase in engine output during the regeneration treatment to recover the deterioration.n n n By absorbing (recovering) the engine output increase in the deterioration and regeneration treatment of the NOx adsorption catalyst with the generator or the motor for driving the hybrid electric vehicle, the influence of the engine output fluctuation can be suppressed and the fuel economy can be prevented from being damaged.n n n n Exhaust gas purification, air-fuel ratio, deterioration with time, NOx concentration sensor, ECU, crank angle sensor, generator, battery, driving motor, combustion conditions |