Patent ID: 8627650
Filing Date: 2014-01-14
Classification: B60K,B60L,B60W,F01N,F02D,Y02T

Abstract:
1. An exhaust gas purification device, comprising: a bypass passage disposed in an exhaust passage of an internal combustion engine; an adsorbent which is disposed in the bypass passage, and adsorbs unburned components in exhaust gas at a low temperature and desorbs the adsorbed unburned components at a high temperature; an exhaust gas purification catalyst which is disposed in the exhaust passage at a downstream side of a portion where the bypass passage merges, and purifies the unburned components in exhaust gas; an electronic control unit, including program logic, configured to output control signals; and a switching valve configured to adjust a desorption amount of the unburned components adsorbed by the adsorbent based on an adjusting-desorption-amount control signal output from the electronic control unit; wherein the adjusting-desorption-amount control signal output from the electronic control unit is based on an integrated fuel cut air amount, which is an integrated value of an air amount taken into a combustion chamber of the internal combustion engine during execution of fuel cut; and wherein the electronic control unit, including the program logic, is configured to: