Abstract: In a suspension bush in which an intermediate member is arranged between an inner shaft member and an outer tube member that are connected by a main body rubber elastic body, a central portion in the axial direction of the inner shaft member includes an inner bulging portion projecting toward the outer periphery, the outer tube member includes an outer curved portion concave toward the inner periphery, and the intermediate member includes an intermediate curved portion concave toward the inner periphery. The main body rubber elastic body is pre-compressed by diameter reduction of the outer tube member, an inclination angle of both axial end parts of the outer curved portion with respect to the axial direction is increased by diameter reduction of the outer tube member 14, and both axial end parts of the outer curved portion are pressed against axial end portions of the main body rubber elastic body.

Abstract: An electromagnetic valve driving device includes: a maximum detection unit configured to detect a maximum point when time-series data of a differential value of a counter electromotive voltage generated in a solenoid has changed from an increase to a decrease by retrospectively tracing the time-series data in an opposite direction of a time series; and a valve closing time detection unit configured to execute a determination process of retrospectively tracing the time-series data from the maximum point detected by the maximum detection unit in the opposite direction and scanning whether or not an amount of decrease in the differential value from the maximum point exceeds a predetermined threshold value and detect a maximum time, which is a time of the maximum point, as a valve closing time of a fuel injection valve when there is an event in which the amount of decrease exceeds the predetermined threshold value.

Abstract: An electromagnetic valve drive device, that drives a fuel injection valve having a solenoid coil, includes a drive unit configured to drive the solenoid coil, an energization control unit configured to control energization for the solenoid coil by controlling the drive unit, a processing unit configured to obtain a current value arrival time, which is a time having elapsed from a start of energization for the solenoid coil until a current flowing through the solenoid coil reaches a predetermined current value, and an estimation unit configured to estimate a valve opening start time, which is a time from the start of the energization to a start of opening of the fuel injection valve on the basis of the current value arrival time.

Abstract: This detector includes: a filtering unit performing a first filtering process of performing a filtering process on a first waveform or a second filtering process of performing a filtering process on a second waveform; a detection unit detecting a timing of a first peak value corresponding to a predetermined peak value of a third waveform; a correction unit which corrects a deviation of a detection value corresponding to a timing detected by the detection unit with respect to a timing when the fuel injection valve is actually opened or closed based on a difference between the first peak value of the third waveform and a second peak value of the third waveform appearing after the first peak value; and a detecting unit which detects one or both of the opening and closing of the fuel injection valve based on the detection value corrected by the correction unit.

Abstract: An electromagnetic valve driving device includes: a maximum detection unit configured to detect a maximum point when time-series data of a differential value of a counter electromotive voltage generated in a solenoid has changed from an increase to a decrease by retrospectively tracing the time-series data in an opposite direction of a time series; and a valve closing time detection unit configured to execute a determination process of retrospectively tracing the time-series data from the maximum point detected by the maximum detection unit in the opposite direction and scanning whether or not an amount of decrease in the differential value from the maximum point exceeds a predetermined threshold value and detect a maximum time, which is a time of the maximum point, as a valve closing time of a fuel injection valve when there is an event in which the amount of decrease exceeds the predetermined threshold value.

Abstract: An electromagnetic valve drive device, that drives a fuel injection valve having a solenoid coil, includes a drive unit configured to drive the solenoid coil, an energization control unit configured to control energization for the solenoid coil by controlling the drive unit, a processing unit configured to obtain a current value arrival time, which is a time having elapsed from a start of energization for the solenoid coil until a current flowing through the solenoid coil reaches a predetermined current value, and an estimation unit configured to estimate a valve opening start time, which is a time from the start of the energization to a start of opening of the fuel injection valve on the basis of the current value arrival time.

Abstract: This detector includes: a filtering unit performing a first filtering process of performing a filtering process on a first waveform or a second filtering process of performing a filtering process on a second waveform; a detection unit detecting a timing of a first peak value corresponding to a predetermined peak value of a third waveform; a correction unit which corrects a deviation of a detection value corresponding to a timing detected by the detection unit with respect to a timing when the fuel injection valve is actually opened or closed based on a difference between the first peak value of the third waveform and a second peak value of the third waveform appearing after the first peak value; and a detecting unit which detects one or both of the opening and closing of the fuel injection valve based on the detection value corrected by the correction unit.

Abstract: According to one embodiment, a protective sheet to be attached to an outer surface of a housing of an electronic device is provided. The protective sheet comprises a sheet body formed of a material more flexible than that of the housing and having an external form defined by sides extending along edges of the electronic device, an adhesive layer applied to one entire surface of the sheet body, a notch comprising a closing end positioned in the sheet body and an opening end positioned at the side and extending along an extending direction connecting the closing end and the opening end, and a tab formed on the sheet body at least one side of the extending direction of the notch portion and easily peelable off from the outer surface.

Abstract: According to one embodiment, a stand for an electronic device includes a base and a second support. The electronic device includes a housing, a display screen, a first connector, an end at which the first connector is exposed and extended along a periphery of the display screen, and a wall opposite the display screen. The base includes a first support that supports the end of the electronic device, and a second connector electrically connected to the first connector. The second support is pivotably supported by the base between a first position of a lying down posture and a second position of a standing posture, is pivoted from the first position to the second position when the end is moved closer to a support position of the first support so that the second support is pressed by the end, and supports the wall in the standing posture.

Abstract: According to one embodiment, an electronic device includes: a main body; a second connector; and a second engage portion. The main body includes a component container housing a component. The second connector is provided to the main body so as to face the component container, and is configured to be attached to a first connector provided at one end of the component. The second engage portion is provided to the main body, and is configured to be engaged with a first engage portion provided at other end of the component.

Abstract: According to one embodiment, an electronic device includes: a main body; a second connector; and a second engage portion. The main body includes a component container housing a component. The second connector is provided to the main body so as to face the component container, and is configured to be attached to a first connector provided at one end of the component. The second engage portion is provided to the main body, and is configured to be engaged with a first engage portion provided at other end of the component.