摘要:
Pressurized fuel of a common rail is introduced into a control chamber of a fuel injector. An electromagnetic valve opens or closes a fuel discharge passage of the control chamber to adjust a hydraulic pressure of the control chamber. Through a switching leak passage, bubble-containing fuel directly returns from a valve opening of the electromagnetic valve to a low-pressure return passage without passing through an armature chamber. Through a stationary leak passage, the fuel leaking from every slide portion returns to the return passage via the armature chamber. A downstream portion of the stationary leak passage opens to the upper portion of the armature chamber. A damper element is provided downstream of the electromagnetic valve in the return passage for canceling an increased fuel pressure.
摘要:
An engine control device for controlling an exhaust gas recirculation operation includes a variable-capacity turbo supercharger, an EGR valve, a supercharging pressure controller, an EGR controller, and an EGR correction amount calculator. The variable-capacity turbo supercharger varies a flow through an exhaust turbine to change a supercharging pressure. The EGR valve adjusts an exhaust reflow amount of gas flowing from an exhaust passage to an air intake passage. The supercharging pressure controller drives the supercharger to control the supercharging pressure. The EGR controller drives the EGR valve to control the exhaust gas recirculation operation. The EGR correction amount calculator calculates an EGR correction amount according to a change in the exhaust gas recirculation operation. The EGR controller performs a feedback control operation on the EGR valve in accordance with a deviation between an EGR control amount corrected by the EGR correction amount and a target EGR control amount.
摘要:
A fuel injection system for an internal combustion engine includes a fuel supply pump, a fuel pressure detector, and a control unit. The fuel supply pump supplies pressurized fuel to a fuel injection valve in the internal combustion engine. The fuel pressure detector detects the pressure of the fuel supplied. The control unit controls the amount of the fuel supplied based on a deviation between an actual fuel pressure and a target fuel pressure. The control unit includes an integral term calculator and an integral term holder. The integral term calculator adds an integral compensation quantity and a last-time integral term to calculate a this-time integral term based on an integral compensation quantity that is updated according to the deviation. The integral term holder stops the updating of the integral compensation quantity and retains the last-time integral term when a defect in the fuel supply pump is detected.
摘要:
In an electronic throttle controller, when an intake air amount detected by an air flow meter is smaller than a stole prevention judging-purpose each cylinder intake amount, a stole prevention adding amount “large” is added to intake throttle opening degree deviation, a DC motor is driven while neglecting a feedback control operation, and an opening degree of the intake throttle is controlled to be further opened from an actual preceding control position. When an execution number of the engine stop avoiding control is larger than a predetermined number within a predetermined period, an abnormal condition of a throttle position sensor is detected, and thus, energizing operation of the DC motor is stopped. The abnormal condition malfunction of the throttle position sensor can be firmly detected while an engine stole is avoided.
摘要:
Highly-accurate approximate positional information is transmitted to a communication terminal.An approximate positional information DB 23 of a SUPL server 20 included in a positioning support system 10 includes approximate positional information which is used for positioning calculation at the communication terminal 60 and which indicates a position of a cell C1 in which the communication terminal 60 exists and a cell ID identifying the cell C1, with approximate positional information and the cell ID being associated with each other. Based on a positioning information transmission request which includes a cell ID and which is transmitted from the communication terminal 60, approximate positional information stored in the approximate positional information DB 23 is acquired and transmitted from a communication unit 21 to the communication terminal 60. In addition, positioning result information that is information indicating a result of the positioning calculation which is transmitted from the communication terminal 60 is received and, based on this information, approximate positional information stored in the approximate positional information DB 23 is updated by a control unit 22. The accuracy of approximate positional information is enhanced due to the approximate positional information stored in the approximate positional information DB 23 being updated based on positioning result information.
摘要:
A control unit for controlling fuel pressure in a common rail comprises a pressure sensor for detecting fuel pressure in the common rail, a decreased amount presuming means for calculating a presumed decreased amount (PC1) of the common rail fuel pressure, and a first determination means for comparing the detected decreased amount (PC2) of the common rail fuel pressure with the presumed decreased amount (PC1), in order to determine whether any abnormal condition is in the outputs from the pressure sensor. Therefore, the malfunction of the pressure sensor or any abnormal conditions included in the outputs from the pressure sensor can be detected even during the engine operation.
摘要:
A fuel injection system for an internal combustion engine includes a fuel supply pump, a fuel pressure detector, and a control unit. The fuel supply pump supplies pressurized fuel to a fuel injection valve in the internal combustion engine. The fuel pressure detector detects the pressure of the fuel supplied. The control unit controls the amount of the fuel supplied based on a deviation between an actual fuel pressure and a target fuel pressure. The control unit includes an integral term calculator and an integral term holder. The integral term calculator adds an integral compensation quantity and a last-time integral term to calculate a this-time integral term based on an integral compensation quantity that is updated according to the deviation. The integral term holder stops the updating of the integral compensation quantity and retains the last-time integral term when a defect in the fuel supply pump is detected.
摘要:
A crank sensor outputs a crank signal including an angle indicating part and a reference position indicating part. A cam sensor outputs a cam signal including an angle indicating part and a reference position indicating part. A microcomputer executes a cylinder determining processing using the crank signal alone, and also executes a cylinder determining processing using the cam signal alone. In addition, the microcomputer detects abnormality of the crank signal and the cam signal. The cylinder determining processing using the crank signal alone is prohibited when both the crank signal and the cam signal become abnormal while operating the engine. Then, the prohibition of the cylinder determining processing is withdrawn on the condition that the cam signal is recovered to normal.
摘要:
A service server apparatus is provided which can realize a service as if a speaker has a conversation in a face-to-face manner using existing applications. The service server apparatus includes a service activating unit receiving an instruction for performing a task during a communication, a telephone/call control unit recording a call speech of the speaker during the communication between speech communication terminal devices, a speech recognizing enabler, a text translating enabler, and a speech synthesizing enabler performing the task based on the recorded call speech when the instruction is received, and a communication control enabler providing task data obtained through an performance of the task to the speech communication terminal device. The task data is text data obtained by converting the call speech into a text, translated text data obtained by translating the text data into another language, and speech data obtained by converting the translated text data into a speech.
摘要:
A service server apparatus is provided which can easily cope with a correction of an error of a task performed based on the content of verbal speeches of a speaker. The service server apparatus includes a service activating unit that receives an instruction for performing a different task from a task performed by an application relating to a speech communication, a telephone/call control enabler that records verbal speeches of the speaker during a speech communication between a plurality of speech communication terminal device, a speech recognizing enabler which performs a task based on the recorded speeches and which generates task data including text data representing the result of the performance and speech data representing the result of the performance, a text translating enabler, and a speech synthesizing enabler.