摘要:
Disclosed is an internal combustion engine controller, which is used with a fuel-based torque-on-demand control type, multi-cylinder, direct-injection internal combustion engine to provide an air flow rate control means that excels in response and convergence. This internal combustion engine controller comprises means for computing a target throttle opening from operating conditions. The means for computing a target throttle opening includes: a first computing means for determining a target throttle opening by exercising feedback control in accordance with operating conditions including an intake air flow rate; a second computing means for determining a target throttle opening by exercising feed-forward control in accordance with operating conditions; and a third computing means for determining a target throttle opening in accordance with a target throttle opening value determined by the first computing means and a target throttle opening value determined by the second computing means.
摘要:
A hybrid vehicle control apparatus which is capable of improving the deterioration of the emission performance unique to the hybrid vehicle during idle stop by purifying the exhaust gas remaining in the engine intake pipe, the cylinders, the exhaust pipe and the catalyst. The apparatus comprises two drive sources including an engine operated by fuel combustion and an electric motor/generator operated by electric energy. A residual exhaust gas purifier purifies the gas remaining in the intake pipe, the cylinders, the exhaust pipe and the catalyst of the engine.
摘要:
An exhaust gas cleaning system for an engine capable of judging the amount of trapped NOx and the oxygen storage capacity of an NOx trap agent and which can diagnose the deterioration of the NOx trap agent. The NOx trap is arranged in an exhaust gas passage and the air-fuel ratio of the exhaust gas is temporally changed from a lean air-fuel ratio to the stoichiometric air-fuel ratio or a rich air-fuel ratio with a predetermined cycle. The NOx trapping occurs by absorbing or adsorbing NOx in the exhaust gas when an air-fuel ratio of the exhaust gas is a lean air-fuel ratio and by releasing or reducing NOx when the air-fuel ratio is a rich air-fuel ratio. The amount of trapped NOx is judged from the oxygen concentration and the oxygen concentration in the exhaust gas is detected in the exhaust gas passage in the downstream side of the NOx trap and determined by taking the oxygen storage capacity when the air-fuel ratio of the exhaust gas changes to the stoichiometric air-fuel ratio or the rich air-fuel ratio.
摘要:
The invention provides:primary particles of amorphous silica composite material, characterized in that they are composed of numerous granular amorphous silica particles randomly attached to amorphous silica particles retaining the original configuration of calcium silicate crystals as starting crystals and having a crystalline appearance;secondary particles of amorphous silica composite material, characterized in that they are composed of said primary particles randomly three-dimensionally interlocked with one another;shaped bodies of amorphous silica composite material, characterized in that they are composed of either or both of said primary particles and said secondary particles randomly three-dimensionally interlocked with one another; andprocesses for preparing said primary particles, said secondary particles or said shaped bodies thereof.
摘要:
There is provided an image display device, in which a pixel includes sub-pixels of four or more colors that include a color in addition to the three primary colors, and which can display a high-quality image in which false colors or artifacts are suppressed. The image display device includes a pixel area in which a plurality of pixels P are arranged in a matrix shape, and each of the pixels P includes m (m is an integer which is equal to or greater than 4) sub-pixels SP. When it is assumed that the colors of the m sub-pixels SP included in one pixel are C1, C2, . . . , and Cm, the m sub-pixels SP which are sequentially arrayed from an arbitrary position include all of the colors of C1, C2, . . . , and Cm in both the vertical direction and the horizontal direction in the pixel area.
摘要:
Variations in the air-fuel ratio among cylinders are specified as one cause of deterioration in exhaust emissions however the size of the variations in the air-fuel ratio among cylinders detected by the catalyst upstream sensor does not always match the margin of deterioration in exhaust emissions. The objective of the present invention is to detect the deterioration in the exhaust emissions caused due to variations in the air-fuel ratio among cylinders. Deterioration in exhaust emissions due to variations in the air-fuel ratio among engine cylinders is detected based on a means to calculate a specified frequency component A of the catalyst upstream sensor signal; a means to calculate a specified frequency component B of the catalyst downstream sensor signal; and the frequency component A and the frequency component B.
摘要:
Provided is an image display device having pixels each of which includes sub-pixels of four or more colors and requires fewer dither matrices. This image display device includes a display section in which color filters of sub-pixel colors that are M colors in total including three principal colors of red, green, and blue, as well as at least one color other than the three principal colors are arranged regularly; and a gray-scale processing section (50) that performs gray-scale processing by a dither method with respect to an input image signal. The M sub-pixel colors are divided into N groups (G1 to GN) in such a manner that there is at least one group to which two or more colors belong. The gray-scale processing section (50) includes dither matrix storage ROMs (541 to 54N) that store N combinations of dither matrices corresponding to the N groups, respectively.
摘要:
Provided is an image display device that has pixels each of which includes sub-pixels of four or more colors, and displays a high-definition image that has been subjected to sub-pixel-level filtering processing. The image display device includes a display panel (500) in which color filters of sub-pixel colors including three principal colors of red, green, and blue as well as at least one color other than the three principal colors are arranged regularly; and an image processor (40) that performs filtering processing with respect to an input image signal. The image processor (40) includes: a principal color conversion section (41) that generates sub-pixel signals (RGBYe) corresponding to the sub-pixel colors, respectively, from the input image signals Rin, Bin, and Gin of the three principal colors; and a sub-pixel enhancement section (42) that gives, to the sub-pixel signals, position information in accordance with an order of arrangement of the color filters of the sub-pixel colors in the display panel (500), and performs the filtering processing sub-pixel by sub-pixel.
摘要:
Provided is an image processing apparatus that obtains an effect of improving perceived definition even when an input image signal does not include much of a high range component. The image processing apparatus (10) includes a high-pass filter (1) that extracts a mid-high range component from the input image signal; a nonlinear processing unit (2) that performs nonlinear processing on an output signal from the high-pass filter (1); an addition unit (3); a threshold value determination unit (4) that determines an upper threshold value and lower threshold value for clipping processing based on the maximum value and minimum value of the pixel values in the input image signal in the range thereof that was subjected to processing by the high-pass filter (1); a clipping unit (5) that performs clipping processing using the upper threshold value and lower threshold value; a high-pass filter (6) for an output signal from the clipping unit (5); a non-linear processing unit (7) that performs non-linear processing on an output signal from the high-pass filter (6); and an addition unit (8) that adds an output signal from the non-linear processing unit (7) and the output signal from the clipping unit (5).
摘要:
An engine controller comprises a combustion state detection or estimation means for detecting or estimating a combustion state in the combustion chamber, a combustion air-fuel ratio estimation means for estimating a combustion air-fuel ratio in the combustion chamber according to an exhaust air-fuel ratio and the detected or estimated combustion state, and a means for calculating engine control parameters according to the estimated combustion air-fuel ratio.