Patent application number | Description | Published |
20080209887 | EXHAUST THROTTLE VALVE DIAGNOSING DEVICE AND METHOD - When switching an exhaust throttle valve from full opening to a closed position to warm up an engine, an intake throttle valve is fixed to full opening, an EGR valve is fixed to full closing, and a variable turbo-vane is fixed to a predetermined opening degree to accelerate a gas flow rate from an intake passage to an exhaust passage, a fully opened flow rate is detected and stored by gas flow rate detection means, with the exhaust throttle valve being full opening, after which an instruction is issued to the exhaust throttle valve to switch from the full opening to a closed position for detecting a closed position flow rate, a flow rate difference is determined by deducting the detected closed position flow rate from the stored fully opened flow rate, and failure of the exhaust throttle valve is judged when the flow rate difference is less than a predetermined threshold value. | 09-04-2008 |
20080209990 | FUEL PRESSURE SENSOR DIAGNOSING DEVICE AND METHOD - A fuel pressure sensor diagnosing device for diagnosing a fuel pressure sensor for detecting pressure in a common rail in which a high-pressure fuel to be supplied to an engine is accumulated, the device comprising: fuel temperature detection means for detecting fuel temperature; and failure determination means, provided with the fuel temperature detection means for detecting fuel temperature via subsequent to stopping of the engine, for obtaining a resting and stabilization time between when the pressure in the common rail drops and when the pressure stabilizes on the basis of this detected fuel temperature, detecting a stabilized fuel pressure via the fuel pressure sensor subsequent to lapse of the resting and stabilization time, and determining a failure of the fuel pressure sensor when the detected stabilized fuel pressure exceeds a predetermined upper limit threshold value or is less than a predetermined lower limit threshold value. | 09-04-2008 |
20130096805 | COMBUSTION DIAGNOSIS DEVICE FOR INTERNAL COMBUSTION ENGINE - A combustion diagnosis device for a diesel engine having a plurality of cylinders, including an engine speed sensor for detecting a rotational speed of each cylinder, an injection correction amount calculation unit for calculating an amount of correction for fuel injection of each cylinder in accordance with the engine speed sensor, a rotational fluctuation calculation unit for calculating a rotational fluctuation of each cylinder in accordance with the engine speed sensor, and a combustion state determination unit for determining a combustion state of a determination-target cylinder in accordance with the rotational fluctuation when the correction amount calculated by the injection correction amount calculation unit reaches an upper limit threshold value. | 04-18-2013 |
Patent application number | Description | Published |
20100084642 | ORGANIC EL DEVICE - An organic EL device includes an array substrate including an insulating substrate and an organic EL element which is disposed above the insulating substrate, a sealing substrate which is disposed on that side of the array substrate, which faces the organic EL element, and is attached to the array substrate, a light sensor which is provided in the array substrate and includes a light-sensing part which receives incident light via the sealing substrate, and a light-shield layer which is disposed between the light sensor and the sealing substrate, and includes an opening portion which is formed right above the light-sensing part of the light sensor. | 04-08-2010 |
20110050870 | ORGANIC EL DISPLAY DEVICE - According to one embodiment, an organic EL display device includes an organic EL element, a pixel circuit configured to include an output switch which controls emission/non-emission of the organic EL element, and a luminance switching module configured to output to the output switch a first control signal which causes the organic EL element to emit light with a first total emission time per unit time, when a first display mode of displaying a two-dimensional image is selected, and to output to the output switch a second control signal which causes the organic EL element to emit light with a second total emission time, which is longer than the first total emission time, per unit time, when a second display mode of displaying a three-dimensional image is selected. | 03-03-2011 |
20110234776 | ORGANIC EL DISPLAY DEVICE AND ORGANIC EL DISPLAY METHOD - According to one embodiment, a device includes a plurality of pixels configured to include an organic EL element and a pixel circuit which controls the organic EL element, a plurality of video signal lines configured to be connected to the pixel circuit for every column and provide a video signal, and a plurality of scanning signal lines configured to be connected to the pixel circuit for every row for causing a write operation of writing the video signal to the pixel circuit and a light emitting operation of the organic EL element, and provide a scanning signal for controlling in a manner that a time from end of the write operation to start of the light emitting operation sequentially becomes shorter from a first row to a last row of the pixel circuit while keeping a light emission duration in each organic EL element constant. | 09-29-2011 |
20110273397 | ORGANIC EL DISPLAY DEVICE AND METHOD FOR DETECTING TOUCH - According to one embodiment, an organic EL display device has a pixel circuit on a first substrate and a touch detection circuit adjacent to the pixel circuit on the first substrate. The pixel circuit has an organic EL light-emitting element configured to emit light having brightness depending on a pixel voltage supplied by a pixel signal line, a drive element configured to drive the organic EL light-emitting element, and a first select element configured to supply the pixel voltage to the drive element in synchronization with a control signal supplied by a control signal line. The touch detection circuit has a touch detection capacitor configured to detect a presence/absence of a touch of a dielectric and a second select element configured to output a signal indicative of the presence/absence of the touch of the dielectric detected by the touch detection capacitor to an electrostatic signal line in synchronization with the control signal supplied by the control signal line. | 11-10-2011 |