Abstract: The present invention reduces exhaust emissions at startup, provides improved fuel pressure control performance in a low-load region, and detects high-pressure fuel system abnormalities. Disclosed is a high-pressure fuel system control device which includes a high-pressure pump for pressurizing fuel and discharging the pressurized fuel to a fuel rail, an injector for injecting the fuel stored in the fuel rail, and a fuel pressure sensor for measuring the pressure of the fuel stored in the fuel rail, and controls the high-pressure pump and the injector in accordance with an output generated from the fuel pressure sensor.

Abstract: An object recognizing means obtains a relative physical value between a movable body and an object such as at least one of the other movable body, an object on the ground, a position on the ground, a topographical feature and a regional information around the movable body, and a safety keeping area calculator calculates an imaginary safety keeping area around the movable body from the relative physical value, and an object intrusion judging means decides as to at least one of whether or not the object is within the safety keeping area and whether or not the object will be within the safety keeping area to perform at least one of controlling for preventing a collision between the movable body and the object and outputting an alarm, when deciding the at least one of that the object is within the safety keeping area and that the object will be within the safety keeping area.

Abstract: A diagnostic apparatus for an internal combustion engine, comprising an adjusting device for adjusting a burning condition, a correction device for estimating or detecting an input or an output to and from the internal combustion engine so as to correct at least one of a throttle opening degree, a fuel injection pulse width, a fuel injection timing, an ignition timing and an exhaust gas recirculation quantity, a recording device for recoding a controlled correction value from the correction device at every predetermined time, and a fuel consumption evaluation means for evaluating a fuel consumption of the engine, being based upon the recorded data or log data as to the recorded data, wherein a deterioration of fuel consumption caused by an abnormality of the engine can been soon detected with no affection by an operating condition of the engine and unevenness of component parts.

Abstract: In a diagnosis apparatus for an internal combustion engine which determines the abnormality of a linear A/F sensor which is disposed on the upstream side of a catalyst of the engine and detects the A/F of exhaust gas, the apparatus includes a response/gain deterioration detection unit that separately detects the response deterioration in which the response of the linear A/F sensor is delayed and the gain deterioration in which the detection sensitivity of the linear A/F sensor is abnormal.

Abstract: In a diagnosis apparatus for an internal combustion engine which determines the abnormality of a linear A/F sensor which is disposed on the upstream side of a catalyst of the engine and detects the A/F of exhaust gas, the apparatus includes a response/gain deterioration detection unit that separately detects the response deterioration in which the response of the linear A/F sensor is delayed and the gain deterioration in which the detection sensitivity of the linear A/F sensor is abnormal.

Abstract: A control apparatus for an internal combustion engine has an oxygen storage volume computing unit for computing an oxygen storage volume of a catalyst by using a real air/fuel ratio detected by an air/fuel ratio sensor installed on the upstream side of a catalyst, a center air/fuel ratio representing a stoichiometric air/fuel ratio and an estimated air flow volume or detecting a flow rate of air flowing into the catalyst. A center air/fuel ratio correcting unit for correcting a center air/fuel ratio based on output of a rear air/fuel ratio sensor provided on the downstream side of the catalyst, and an oxygen storage volume computed by an oxygen storage volume computing unit, and the oxygen storage volume computing unit computes an oxygen storage volume by using a center air/fuel ratio corrected by the center air/fuel ratio correcting unit.

Abstract: In an image forming apparatus according to the present invention, a shield plate 202 which is made of a specific material and has a specific thickness is provided between an exciting coil and at least one of a first and a second magnetic field intensity measuring point P1, P2, which prevents a magnetic field of a specific magnetic field intensity or higher from leaking to the outside of the image forming apparatus or alleviates the effect of the magnetic field on the circuits in the apparatus or optionally installed devices.

Abstract: A catalyst diagnosis apparatus comprises a reaction rate calculation unit for calculating a reaction rate of chemical reaction in a three-way catalyst based on an output of an oxygen sensor, and an OSC indicator calculation unit for calculating an OSC indicator indicating an oxygen storage capacity (OSC) of the three-way catalyst based on outputs of a linear air-fuel ratio sensor and the oxygen sensor, and a catalyst degradation determination unit for determining degradation of the three-way catalyst based on the reaction rate and the OSC indicator. The determination of the catalyst degradation can be performed with high accuracy in a manner adapted for influences of external environments, etc.

Abstract: A distance defined by expression 2 is secured between the exciting coil and the protection cover. This not only prevents a magnetic field with a specific magnetic field intensity or higher from leaking to the outside but also reduces the effect on the circuits in the apparatus or optionally installed circuits (including a printer controller and a FAX controller).

Abstract: An excitation coil and/or a core member, which has a characteristic frequency other than frequencies used, is employed. Thereby, resonance is prevented between adjacent coils or between a coil and an adjacent component such as a core member.

Abstract: In a diagnosis apparatus for an internal combustion engine which determines the abnormality of a linear A/F sensor which is disposed on the upstream side of a catalyst of the engine and detects the A/F of exhaust gas, the apparatus includes a response/gain deterioration detection unit that separately detects the response deterioration in which the response of the linear A/F sensor is delayed and the gain deterioration in which the detection sensitivity of the linear A/F sensor is abnormal.

Abstract: In an image forming apparatus according to the present invention, a shield plate 202 which is made of a specific material and has a specific thickness is provided between an exciting coil and at least one of a first and a second magnetic field intensity measuring point P1, P2, which prevents a magnetic field of a specific magnetic field intensity or higher from leaking to the outside of the image forming apparatus or alleviates the effect of the magnetic field on the circuits in the apparatus or optionally installed devices.

Abstract: In an image forming apparatus according to the present invention, a shield plate 202 which is made of a specific material and has a specific thickness is provided between an exciting coil and at least one of a first and a second magnetic field intensity measuring point P1, P2, which prevents a magnetic field of a specific magnetic field intensity or higher from leaking to the outside of the image forming apparatus or alleviates the effect of the magnetic field on the circuits in the apparatus or optionally installed devices.

Abstract: A distance defined by expression 2 is secured between the exciting coil and the protection cover. This not only prevents a magnetic field with a specific magnetic field intensity or higher from leaking to the outside but also reduces the effect on the circuits in the apparatus or optionally installed circuits (including a printer controller and a FAX controller).

Abstract: An excitation coil and/or a core member, which has a characteristic frequency other than frequencies used, is employed. Thereby, resonance is prevented between adjacent coils or between a coil and an adjacent component such as a core member.

Abstract: Around a heat roller, a center thermistor (20c) as a first temperature sensor is placed within the range of ±45° from a portion where maximum heat is generated by an IH coil, and a front thermistor (20f) as a second temperature sensor is placed within the range of ±45° from a portion where minimum heat is generated by the IH coil. A main CPU (201) performs fixing control on the basis of sensing temperatures from these two thermistors (20c, 20f). This can prevent an increase in the cost and uniformize the heat distribution of a fixing roller.

Abstract: Around a heat roller, a center thermistor (20c) as a first temperature sensor is placed within the range of ±450 from a portion where maximum heat is generated by an IH coil, and a front thermistor (20f) as a second temperature sensor is placed within the range of ±45° from a portion where minimum heat is generated by the IH coil. A main CPU (201) performs fixing control on the basis of sensing temperatures from these two thermistors (20c, 20f). This can prevent an increase in the cost and uniformize the heat distribution of a fixing roller.

Abstract: A fixing apparatus having a fixing section and a cleaning roller. The fixing section has a pair of fixing rollers. The fixing section is designed to fix a developer image on a paper sheet as the paper sheet having the developer image transferred passes through a nip between the fixing rollers. One of the fixing rollers has a diameter gradually decreasing toward middle portion from either end portion. The cleaning roller is set in contact with said one of the fixing rollers. The cleaning roller removes, from said one of the fixing rollers, dirt such as toner stuck to said one of the fixing rollers during the process of fixing the developer image on the paper sheet. The cleaning roller has a diameter gradually increasing toward a middle portion from either end portion.

Abstract: A microcomputer control section is such that, when switching is mode from a plain sheet mode to a sheetboard/OHP mode by the operation of a corresponding keys on an operation panel, the microcomputer control section changes the control temperature of an upper roller to an equivalent bit value so as to vary that control temperature from 150.degree. C. to 160.degree. C. during which time the microcomputer control section, confirming the surface temperature of an upper roller from a detection signal of a sensing section through an A/D conversion section, turns an upper lamp heater ON through a lamp control section if the surface temperature of the upper roller is below 155.degree. C. and, effecting continued confirmation of the surface temperature of the upper roller from the detection signal of the sensing section through the A/D conversion section, turns the upper lamp heater OFF through the lamp control section when the surface temperature of the upper roller increases above 160.degree. C.

Abstract: In a charging device constituted by a charging wire and a shield case having a U-shaped sectional structure which surrounds the charging wire and has an opening portion opposing a photosensitive body, the peak of a current flowing from the opening of the shield case onto the photosensitive body is offset to the upstream side in the rotational direction of the photosensitive body with respect to the central position of the shield case to uniform a charging potential at an outlet portion of the shield case. According to the above charging device, the peak of the charging flow-in current is offset to the upstream side in the rotational direction of the photosensitive body with respect to the central position of the shield case. For this reason, the peak of discharging is present near the inlet portion of the shield case, and a half or more of a finally obtained halftone potential is obtained on the inlet side. However, a charging irregularity occurs due to a large potential ripple.