Abstract: In a control device for a particulate matter detection sensor, a voltage value acquiring unit acquires a sensor voltage value which is a value of a voltage being applied across a pair of electrodes in the particulate matter detection sensor. A current value acquiring unit acquires a sensor current value which is a value of a current flowing between the electrodes. An output unit outputs a PM current value corresponding to the amount of deposit of particulate matter on an element part of the particulate matter detection sensor. States which the particulate matter detection sensor is determined to be in by a state determining unit include a sensor failure state and a PM-deposited state. The state determining unit determines whether the particulate matter detection sensor is in the sensor failure state or the PM-deposited state based on the sensor voltage value and the sensor current value.

Abstract: A high-pressure pump includes a plunger reciprocating in conjunction with rotation of a rotational shaft to be able to change a volume of a pressurizing chamber and a control valve having a first valve body and a second valve body disposed in a fuel suction passage that communicates with the pressurizing chamber and supplies/blocks fuel to/from the pressurizing chamber by displacing the valve body in an axial direction by switching between energization and non-energization of a coil. An ECU adjusts a fuel discharge amount of the high-pressure pump by switching a valve opening and a valve closing of the control valve by the energization control of the coil. The ECU detects movement of the valve body with respect to a drive command of the valve opening or the valve closing of the control valve and executes an actuation determination of the high-pressure pump on the basis of a detection result.

Abstract: A sensor controller is applied to a particulate matter detection sensor that includes an attachment portion to which conductive particulate matter contained in gas is attached, and a pair of opposed electrodes spaced from each other at the attachment portion. The particulate matter detection sensor is adapted to output a detection signal corresponding to a resistance between the pair of opposed electrodes, and the sensor controller is adapted to calculate an amount of attached particulate matter based on a sensor detection value from the particulate matter detection sensor. The sensor controller includes a heater for heating the attachment portion so as to burn and remove the particulate matter attached to the attachment portion, and an abnormality diagnosis portion for obtaining the sensor detection value during a heating of the heater and for performing diagnosis of abnormality of the particulate matter detection sensor based on the obtained sensor detection value.

Abstract: A high-pressure pump includes a plunger reciprocating in conjunction with rotation of a rotational shaft to be able to change a volume of a pressurizing chamber and a control valve having a first valve body and a second valve body disposed in a fuel suction passage that communicates with the pressurizing chamber and supplies/blocks fuel to/from the pressurizing chamber by displacing the valve body in an axial direction by switching between energization and non-energization of a coil. An ECU adjusts a fuel discharge amount of the high-pressure pump by switching a valve opening and a valve closing of the control valve by the energization control of the coil. The ECU detects movement of the valve body with respect to a drive command of the valve opening or the valve closing of the control valve and executes an actuation determination of the high-pressure pump on the basis of a detection result.

Abstract: A high-pressure pump includes a plunger and a control valve. An ECU adjusts a fuel discharge amount of the high-pressure pump by switching a valve opening and a valve closing of the control valve by the energization control of a coil. The ECU detects movement of the valve body with respect to a drive command of the valve opening or the valve closing of the control valve and executes an actuation determination of the high-pressure pump on the basis of a detection result. The ECU executes sound reduction control that reduces actuation sound of the high-pressure pump by controlling supply power supplied to the electromagnetic section on the basis of a determination result of the actuation determination in previous energization by the actuation determination section.

Abstract: When a flow regulating valve is opened, the passage of current through a solenoid is stopped to move a movable part from a closing-side position to an opening-side position and to thereby open the flow regulating valve. When a sound reducing control performing condition is fulfilled, a valve-opening control for reducing sound is performed. In the valve-opening control, until a fuel pressure in a pump chamber is decreased and the flow regulating valve is opened, the passage of current through the solenoid is continuously performed to hold the movable part at the closing-side position. After the flow regulating valve is opened, the passage of current through the solenoid is stopped. Before the movable part reaches the opening-side position, the passage of current is again temporarily performed. An electromagnetic attracting force is temporarily generated and a moving speed of movable part is decreased by the attracting force.

Abstract: A sensor controller for a particulate matter detection sensor includes a heater configured to heat an attachment portion so as to burn and remove particulate matter attached to the attachment portion, a learning portion for obtaining a sensor detection value immediately after burning and removing the particulate matter due to heating of the heater. The leaning portion calculates a sensor standard value based on the obtained sensor detection value in a state where the particulate matter is removed, and stores the sensor standard value as a learning value. Furthermore, a correcting portion corrects the sensor detection value based on the sensor standard value stored by the learning portion.

Abstract: A sensor controller for a particulate matter detection sensor includes a signal output circuit connected to the particulate matter detection sensor such that a sensor detection value is changeable in a predetermined output range by the signal output circuit, a heater configured to heat an attachment portion so as to burn and remove particulate matter attached to the attachment portion, a learning portion for calculating a sensor standard value in a state where the resistance between a pair of opposed electrodes is reduced based on an obtained sensor detection value and for storing the sensor standard value as a learning value, and a correcting portion for correcting the sensor detection value based on the sensor standard value stored by the learning portion.

Abstract: A sensor controller is for a particulate matter detection sensor that includes a pair of opposed electrodes spaced from each other and disposed on an attachment portion. The sensor controller includes a calculation portion configured to calculate an amount of particulate matter attached to the particulate matter detection sensor based on a detection value from the particulate matter detection sensor, and a determination portion configured to determine whether water exists in the exhaust passage based on the detection value. Thus, it is possible to accurately determine whether water exists in the exhaust passage.

Abstract: When a flow regulating valve is opened, the passage of current through a solenoid is stopped to move a movable part from a closing-side position to an opening-side position and to thereby open the flow regulating valve. When a sound reducing control performing condition is fulfilled, a valve-opening control for reducing sound is performed. In the valve-opening control, until a fuel pressure in a pump chamber is decreased and the flow regulating valve is opened, the passage of current through the solenoid is continuously performed to hold the movable part at the closing-side position. After the flow regulating valve is opened, the passage of current through the solenoid is stopped. Before the movable part reaches the opening-side position, the passage of current is again temporarily performed. An electromagnetic attracting force is temporarily generated and a moving speed of movable part is decreased by the attracting force.

Abstract: A sensor controller is applied to a particulate matter detection sensor that includes an attachment portion to which conductive particulate matter contained in gas is attached, and a pair of opposed electrodes spaced from each other at the attachment portion. The particulate matter detection sensor is adapted to output a detection signal corresponding to a resistance between the pair of opposed electrodes, and the sensor controller is adapted to calculate an amount of attached particulate matter based on a sensor detection value from the particulate matter detection sensor. The sensor controller includes a heater for heating the attachment portion so as to burn and remove the particulate matter attached to the attachment portion, and an abnormality diagnosis portion for obtaining the sensor detection value during a heating of the heater and for performing diagnosis of abnormality of the particulate matter detection sensor based on the obtained sensor detection value.

Abstract: A sensor controller for a particulate matter detection sensor includes a signal output circuit connected to the particulate matter detection sensor such that a sensor detection value is changeable in a predetermined output range by the signal output circuit, a heater configured to heat an attachment portion so as to burn and remove particulate matter attached to the attachment portion, a learning portion for calculating a sensor standard value in a state where the resistance between a pair of opposed electrodes is reduced based on an obtained sensor detection value and for storing the sensor standard value as a learning value, and a correcting portion for correcting the sensor detection value based on the sensor standard value stored by the learning portion.

Abstract: A sensor controller for a particulate matter detection sensor includes a heater configured to heat an attachment portion so as to burn and remove particulate matter attached to the attachment portion, a learning portion for obtaining a sensor detection value immediately after burning and removing the particulate matter due to heating of the heater. The leaning portion calculates a sensor standard value based on the obtained sensor detection value in a state where the particulate matter is removed, and stores the sensor standard value as a learning value. Furthermore, a correcting portion corrects the sensor detection value based on the sensor standard value stored by the learning portion.

Abstract: A sensor controller is for a particulate matter detection sensor that includes a pair of opposed electrodes spaced from each other and disposed on an attachment portion. The sensor controller includes a calculation portion configured to calculate an amount of particulate matter attached to the particulate matter detection sensor based on a detection value from the particulate matter detection sensor, and a determination portion configured to determine whether water exists in the exhaust passage based on the detection value. Thus, it is possible to accurately determine whether water exists in the exhaust passage.

Abstract: An air-fuel ratio of each cylinder is estimated on the basis of a detection value of an air-fuel ratio sensor disposed in an exhaust confluent portion. An air-fuel ratio correction quantity is computed on the basis of the estimated air-fuel ratio of each cylinder. The air-fuel ratio of an air-fuel mixture to be supplied to each cylinder is corrected on the basis of the cylinder air-fuel ratio correction quantity to reduce a variation in the air-fuel ratio between the cylinders. When a state in which the cylinder air-fuel ratio correction quantity or its learning value of any cylinder is outside a specified range continues for a while during a period in which this cylinder air-fuel ratio control is performed, a combustion is stopped for the cylinder outside the specified range and the cylinder air-fuel ratio control is continuously performed only for other normal cylinders.

Abstract: A measured object mounting tool 2 for producing a three-dimensional shape data comprises a placing part 2b at the lower face of a cylindrical part 2a, an inclined part 2c at a boundary between the side face and the upper face of the cylindrical part 2a, and a pillar part 2d at the upper face of the cylindrical part 2a, where the pillar part 2d has a mounting part 2e at the upper face thereof, a three-dimensional coordinate other than the engaging portion 3a of a model 3 is produced by engaging the model of the dental prosthesis with the mounting part 2e of the tool 2 on a placing table 1; detecting a position where a received light amount is remarkably decreased to by a laser sensor detect a lower end of the inclined part 2c; and thereby calculating an upper end of the engaging portion 3a.

Abstract: An air-fuel ratio of each cylinder is estimated on the basis of a detection value of an air-fuel ratio sensor disposed in an exhaust confluent portion. An air-fuel ratio correction quantity is computed on the basis of the estimated air-fuel ratio of each cylinder. The air-fuel ratio of an air-fuel mixture to be supplied to each cylinder is corrected on the basis of the cylinder air-fuel ratio correction quantity to reduce a variation in the air-fuel ratio between the cylinders. When a state in which the cylinder air-fuel ratio correction quantity or its learning value of any cylinder is outside a specified range continues for a while during a period in which this cylinder air-fuel ratio control is performed, a combustion is stopped for the cylinder outside the specified range and the cylinder air-fuel ratio control is continuously performed only for other normal cylinders.

Abstract: A secondary air pipe is connected on the upstream side from catalyst in an exhaust pipe, and a secondary air pump is provided at an upstream portion of the secondary air pipe. An opening/closing valve for opening/closing the secondary air pipe is provided on the downstream side from the secondary air pump. A pressure sensor for detecting pressure within pipe is provided between the secondary air pump and the opening/closing valve. An ECU calculates a secondary airflow rate based upon difference pressure between both secondary air supply pressure which is detected by the pressure sensor when the opening/closing valve is opened under such a condition that the secondary air pump is operated, and also, shutoff pressure which is detected by the pressure sensor when the opening/closing valve is closed.

Abstract: A measured object mounting tool 2 for producing a three-dimensional shape data comprises a placing part 2b at the lower face of a cylindrical part 2a, an inclined part 2c at a boundary between the side face and the upper face of the cylindrical part 2a, and a pillar part 2d at the upper face of the cylindrical part 2a, where the pillar part 2d has a mounting part 2e at the upper face thereof, a three-dimensional coordinate other than the engaging portion 3a of a model 3 is produced by engaging the model of the dental prosthesis with the mounting part 2e of the tool 2 on a placing table 1; detecting a position where a received light amount is remarkably decreased to by a laser sensor detect a lower end of the inclined part 2c; and thereby calculating an upper end of the engaging portion 3a.

Abstract: To provide a production method of three-dimensional shape data of a part other than an engaging portion by a three-dimensional measuring device, the engaging portion has an engaging part in a cross sectional shape other than a rotary body and is projected and/or recessed on a jawbone side, a measured object mounting tool 2 comprises a cylindrical part 2a, a mounting part 2b and a placing part 2c, the mounting part 2b positions a prolonged line of an axis of the cylindrical part 2a in the engaging part 3aa, the placing part 2c aligns a pre-specified direction of the mounting part 2b with a specified providing direction of the placing table 1b, the center axis of the cylindrical part 2a is aligned with Z axis, and the model of the dental prosthesis 3 is rotated around Z axis on the basis of the specified providing direction of the placing table 1b.