Abstract: The exhaust gas purification catalyst disclosed here is an exhaust gas purification catalyst disposed in the exhaust pipe of an internal combustion engine to purify nitrogen oxides contained in exhaust gas discharged from the internal combustion engine, provided with a silver alumina catalyst comprising at least alumina as a catalyst and silver supported on this alumina, wherein, in the silver alumina catalyst, the ratio of the peak intensity at a wave number of 1595 cm?1 to the peak intensity at a wave number of 1613 cm?1 by the pyridine IR method is at least 0.3, and the carried amount of the silver is 1.0 wt % to 6.0 wt % given 100 wt % as the total amount of the silver alumina catalyst.

Abstract: The exhaust gas purification catalyst disclosed here is an exhaust gas purification catalyst disposed in the exhaust pipe of an internal combustion engine to purify nitrogen oxides contained in exhaust gas discharged from the internal combustion engine, provided with a silver alumina catalyst comprising at least alumina as a catalyst and silver supported on this alumina, wherein, in the silver alumina catalyst, the ratio of the peak intensity at a wave number of 1595 cm?1 to the peak intensity at a wave number of 1613 cm?1 by the pyridine IR method is at least 0.3, and the carried amount of the silver is 1.0 wt % to 6.0 wt % given 100 wt % as the total amount of the silver alumina catalyst.

Abstract: A steering control device for a vehicle controls a steering device having a steering mechanism and a drive unit configured to provide the steering mechanism with steering force for the wheels. The steering control device includes a detection unit to detect the steering angle; and a control unit to calculate a target value of a current to be supplied to the drive unit as a current command value, and execute automatic steering control to automatically control steering of the vehicle by causing the drive unit to be supplied with the current of the current command value. When an absolute value of the steering angle comes to a predetermined first threshold or more during the automatic steering control, the control unit decreases an upper limit value of an absolute value of the current command value as the absolute value of the steering angle increases.

Abstract: A steering control device for a vehicle controls a steering device having a steering mechanism and a drive unit configured to provide the steering mechanism with steering force for the wheels. The steering control device includes a detection unit to detect the steering angle; and a control unit to calculate a target value of a current to be supplied to the drive unit as a current command value, and execute automatic steering control to automatically control steering of the vehicle by causing the drive unit to be supplied with the current of the current command value. When an absolute value of the steering angle comes to a predetermined first threshold or more during the automatic steering control, the control unit decreases an upper limit value of an absolute value of the current command value as the absolute value of the steering angle increases.

Abstract: A steering control device for a vehicle having a steering mechanism and a drive unit configured to provide the steering mechanism with steering power for the wheels, the steering control device comprising: a control unit configured to control the drive unit to provide the steering mechanism with steering power, thereby executing automatic steering control to steer the steering mechanism; a detection unit configured to detect an input torque input by a steering operation; and a calculation unit configured to calculate a moving average value or integrated value of the input torque on the basis of an input torque detected during a period of time from a certain time before to a current point of time. The control unit releases the automatic steering control when the moving average value or integrated value of the input torque is a predetermined threshold or more.

Abstract: An exhaust gas-purifying system for purifying exhaust gas discharged from a diesel engine includes a diesel oxidation catalyst through which the exhaust gas passes, a diesel particulate filter which includes a filter substrate and an active component supported by the filter substrate and exhibiting a catalytic activity for selective catalytic reduction and through which the exhaust gas having passed through the diesel oxidation catalyst penetrates, and an ammonia slip catalyst which includes a zeolite whose alkaline metal ions are partially exchanged with transition metal ions and through which the exhaust gas having penetrated the diesel particulate filter passes.

Abstract: To provide a filter catalyst in which the closure of ventilation holes by a catalytic layer is inhibited. A filter catalyst of the present is characterized in that, in a filter catalyst comprising: a catalyst-support substrate; and a catalytic layer; an SEM photograph on a cross section of the filter catalyst is turned into electronic data so that, in a processed image in which image processing is performed to the SEM photograph, a ratio of a number of pixels forming an outer periphery of the catalytic layer to a number of pixels forming the catalytic layer is 0.5 or more. An analyzing method of the present invention finds a ratio a number of pixels forming an outer periphery of the catalytic layer to a number of pixels forming the catalytic layer by performing image processing to a cross section of the filter catalyst. The filter catalyst of the present invention has an effect of being capable of inhibiting the rise of pressure loss when sufficient particulates deposit.

Abstract: A filter catalyst of the present invention is comprised of a catalyst-supporting substrate 1, and catalytic portions 5, 6 for purifying an exhaust gas. The catalytic portions includes the first catalytic portion 5 for purifying HC, CO and NOx, and the second catalytic portion 6 for purifying the particulates. The first catalytic portion 5 is formed on a surface of at least a portion of the cellular wall 40, and the second catalytic portion 6 is formed on an inside surface of the pores. In the filter catalyst of the present invention purifying ability of the exhaust gas is increased, and the filter catalyst of the present invention can suppress rise of the pressure loss of the exhaust gas.

Abstract: To provide a process for producing a filter catalyst which can produce a filter catalyst in which the closure of ventilation holes by a catalytic layer is inhibited.

Abstract: To provide a filter catalyst in which the closure of ventilation holes by a catalytic layer is inhibited. A filter catalyst of the present invention is characterized in that it has pores of 1-20 ?m in a porosity of 11% or more. The filter catalyst of the present invention has an effect of being capable of inhibiting the rise of pressure loss when sufficient particulates deposit.

Abstract: To provide a filter catalyst in which the closure of ventilation holes by a catalytic layer is inhibited. A filter catalyst of the present invention is characterized in that it has pores of 1-20 ?m in a porosity of 11% or more. The filter catalyst of the present invention has an effect of being capable of inhibiting the rise of pressure loss when sufficient particulates deposit.

Abstract: To provide a filter catalyst in which the closure of ventilation holes by a catalytic layer is inhibited. A filter catalyst of the present is characterized in that, in a filter catalyst comprising: a catalyst-support substrate; and a catalytic layer; an SEM photograph on a cross section of the filter catalyst is turned into electronic data so that, in a processed image in which image processing is performed to the SEM photograph, a ratio of a number of pixels forming an outer periphery of the catalytic layer to a number of pixels forming the catalytic layer is 0.5 or more. An analyzing method of the present invention finds a ratio a number of pixels forming an outer periphery of the catalytic layer to a number of pixels forming the catalytic layer by performing image processing to a cross section of the filter catalyst. The filter catalyst of the present invention has an effect of being capable of inhibiting the rise of pressure loss when sufficient particulates deposit.

Abstract: To provide a process for producing a filter catalyst which can produce a filter catalyst in which the closure of ventilation holes by a catalytic layer is inhibited.

Abstract: A filter catalyst of the present invention is comprised of a catalyst-supporting substrate 1, and catalytic portions 5, 6 for purifying an exhaust gas. The catalytic portions includes the first catalytic portion 5 for purifying SC, CO and NOx, and the second catalytic portion 6 for purifying the particulates. The first catalytic portion 5 is formed on a surface of at least a portion of the cellular wall 40, and the second catalytic portion 6 is formed on an inside surface of the pores. In the filter catalyst of the present invention purifying ability of the exhaust gas is increased, and the filter catalyst of the present invention can suppress rise of the pressure loss of the exhaust gas.