JTEKT Patente

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Zusammenfassung wird geladen …

(Summary) In the present invention, a first resin member 2 and a second resin member 3 are welded by a laser light irradiation in a state in which the first resin member 2 and the second resin member 3 are compressed. The first resin member 2 is a light-absorbing resin member that absorbs laser light, and the second resin member 3 is a light-transmitting resin member that transmits laser light. A lower-side inclined surface 31 that is inclined with respect to a compression direction is formed on the second resin member 3, and a facing surface 21 that faces the lower-side inclined surface 31 and that comes into contact with the lower-side inclined surface 31 due to compression is formed on the first resin member 2. In a welding step, the first resin member 2 and the second resin member 3 are welded by having laser light transmit through the second resin member 3 from a direction intersecting the compression direction and irradiate a contact part 53 that is between the lower-side inclined surface 31 and the facing surface 21. In this process of the welding, the contact area between the lower-side inclined surface 31 and the facing surface 21 expands through having the first resin member 2 heated and softened at a portion irradiated with the laser light.

(Problem) To provide: a welding method with which laser welding can be reliably performed while limiting an increase in size; a resin joint; and a polygonal case. (Solution) A first resin member 2 and a second resin member 3 are welded by irradiation with laser light while the first resin member 2 and the second resin member 3 are under pressure. The first resin member 2 is a light-absorbing resin member that absorbs laser light, and the second resin member 3 is a light-transmitting resin member that transmits laser light. The second resin member 3 is formed to have a lower side inclined surface 31 inclined with respect to a direction of pressure, and the first resin member 2 is formed to have a facing surface 21 facing the lower side inclined surface 31 and coming into contact with the lower side inclined surface 31 due to the pressure. In a welding step, the first resin member 2 and the second resin member 3 are welded together through irradiation with laser light by directing the laser light to a contact site 53 between the lower side inclined surface 31 and the facing surface 21 from a direction intersecting the direction of pressure so that the laser light passes through the second resin member 3.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

The torque sensor (10) includes a first housing (40) and a second housing (50) assembled with each other in an axial direction of a shaft (11) that is a detection target. Each of the first housing and the second housing includes an opposing surface, and the opposing surfaces of the first housing and the second housing face each other in the axial direction. The first housing (40) includes a pin (49A, 49B, 49C). The second housing (50) has a pin hole (55A, 55B, 55C) extending through the second housing in the axial direction and corresponding to the pin. A head portion (HD) covering the pin hole is provided at a tip of the pin by heat staking the tip of the pin with the pin disposed in the pin hole, and the first housing (40) and the second housing (50) are thus joined. The second housing (50) includes a groove (56A, 56B, 56C) near the pin hole on the opposite surface from the opposing surface of the second housing (50). The head portion includes a stopper portion (HDS) that enters the interior of the groove.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

An electric power steering system (20) includes a motor (22B), a reducer (22C), and a steering gearbox (22A). The steering gearbox includes an input shaft (61) and a first housing (41). The reducer includes first to fourth gears (51 to 54), a second housing (42), and a third housing (43). The first gear is linked to a motor shaft (22B1) and rotates around a first axis (O1), the second gear and the third gear are linked coaxially and rotate around a second axis (O2), and the fourth gear is linked to an end portion of the input shaft in an axial direction and rotates about a third axis (O3). Relative positions of the first axis (O1) and the third axis (O3) are defined by attaching the motor (22B) and the first housing (41) to the second housing (42) from a same attaching direction in the axial direction of the input shaft.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

A turning control device (70) is configured to execute a turning process, a detection process, and a storage process. The turning process is a process of turning a steered wheel in at least one direction out of two directions to a right-turning side and to a left-turning side by operating a motor. The detection process is a process in which a detection value of an absolute angle sensor and a detection value of a rotation angle sensor when the turning process is being executed are input, and a degree of mismatch between an axial displacement amount of a steered shaft and a rotation angle on an input side of a conversion device is detected. The storage process is a process of storing, in a storage device, a correction amount for suppression of the mismatch between the axial displacement amount of the steered shaft and the rotation angle on the input side of the conversion device.

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Zusammenfassung wird geladen …

A control circuit of a vehicle power supply device (1) is configured to execute, when a start switch of a vehicle is switched to an ON state, an initial check process including one or more abnormality determinations for detecting an abnormality of the vehicle power supply device (1), and execute, when the start switch is switched to an OFF state, a discharging process in which an auxiliary power supply (41) is discharged through a boost circuit (42) until the voltage of the auxiliary power supply reaches a predetermined voltage. The control circuit is further configured to perform, before execution of the one or more abnormality determinations, a restart determination for determining whether at least one of a voltage on the input side of the boost circuit (42) in the discharge line (Lsu) and a voltage on the output side of the boost circuit in the discharge line is greater than or equal to a voltage threshold, and, when at least one of the voltages is greater than or equal to the voltage threshold, not determine that an abnormality has occurred in the vehicle power supply device (1) by a predetermined abnormality determination.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

In a turning control device (70), a steered wheel is a controlled object and a motor that turns the steered wheel is an operational object. The turning control device is configured to execute a right-turning operation process, a left-turning operation process, and a midpoint calculation process. The right-turning operation process is a process of maximally displacing the steered wheel to a right-turning side at a right-turning speed by operating the motor. The left-turning operation process is a process of maximally displacing the steered wheel to a left-turning side at a left-turning speed by operating the motor. The midpoint calculation process is a process of calculating a midpoint between a maximum value of a steered angle of the steered wheel on the right-turning side in the right-turning operation process and a maximum value of the steered angle on the left-turning side in the left-turning operation process. The right-turning operation process includes a process of changing the right-turning speed during the right-turning operation process.

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …