Abstract: Provided is a technology that is able to shorten the time required to switch a PWM signal when driving the voltage conversion unit, and that can determine the duty according to a current value and an internal resistance of a power unit. A voltage conversion device has a current detection unit that detects a current value of a conduction path, an internal resistance detection unit that detects an internal resistance of a first power unit, a determination unit that determines a usage duty, and a drive unit that outputs a PWM signal that depends on the usage duty determined by the determination unit as a control signal. The determination unit determines the usage duty, based on the internal resistance detected by the internal resistance detection unit and the current value detected by the current detection unit.

Abstract: In a power distribution device, a current detection circuit detects a current value of a current flowing through a wire. When a switch is on, a microcomputer determines whether or not a predetermined condition is satisfied, based on the current value detected by the current detection circuit. If it is determined by the microcomputer that the predetermined condition is satisfied, a drive circuit turns off the switch.

Abstract: A driving apparatus drives a load. An N-channel MOSFET is disposed downstream of the load on a current path of a current that flows via the load. A circuit resistor is connected between a direct current power source and the gate of the MOSFET. A first switch is connected between the gate and the source of the MOSFET. A microcomputer outputs a voltage relative to a potential at an output terminal of a second switch to a control terminal of the second switch. As a result, the second switch is turned ON or OFF. A switching circuit turns the first switch ON when the second switch is turned ON and turns the first switch OFF when the second switch is turned OFF.

Abstract: A reactor includes a coil, a magnetic core, and a holding member holding an end face of the wound part in an axial direction and an outer core part of the magnetic core. The holding member is a frame-shaped body having a through hole into which an end portion of the inner core part is inserted. The outer core part has an inward surface opposing the inner core part, an outward surface on an opposite side to the inward surface, and a plurality of peripheral surfaces joining between the inward surface and the outward surface. The reactor includes a core coupling member, coupling the outer core part and the inner core part, having a supporting piece supporting the outward surface of the outer core part, and an engaging leg piece having a distal end engaging a peripheral surface engaging part formed on a peripheral surface of the inner core part.

Abstract: A vehicle-mounted communication device that is to be mounted on a vehicle includes: a wireless communication unit that transmits an RF signal that includes data, and is capable of changing a communication method; an acquisition unit that acquires state information that indicates a state of the vehicle; and a control unit that performs switching control to change the communication method based on the state information acquired by the acquisition unit.

Abstract: A power supply control device controls power supply by switching on or off a first semiconductor switch and a second semiconductor switch that are arranged on a current path. A first diode and a second diode are connected between a drain and a source of the first semiconductor switch and the second semiconductor switch, respectively. Cathodes of the first diode and the second diode are arranged downstream and upstream of the respective anode on the current path. If current flows through the current path even though a microcomputer has given an instruction to switch the first semiconductor switch and the second semiconductor switch off, a first drive circuit switches the first semiconductor switch on.

Abstract: Provided is a power supply control device for controlling power supply to a motor installed in a vehicle, including: a switching element configured to turn on and off the power supply to the motor; a current detection circuit configured to detect a current flowing to the motor; and a control unit configured to determine whether or not the motor is in a locked state based on the current detected by the current detection circuit, and control turning on and off the power supply to the motor at a duty cycle that corresponds to the current detected by the current detection circuit, if it is determined that the motor is in the locked state.

Abstract: Provided is a vehicular control device that is provided with a switching circuit, and for opening/closing a connection between a starter including a capacitor that is to be connected to one end portion of the switching circuit and an in-vehicle battery that is to be connected to another end portion of the switching circuit by controlling an on/off state of the switching circuit. The control device includes a voltage detection unit configured to detect a voltage of the one end portion, and a control unit configured to control the switching circuit to turn off from on, and determine whether there is a failure in the switching circuit, based on a voltage detected by the voltage detection unit when a predetermined time has elapsed from when the switching circuit is controlled to turn off from on.

Abstract: Provided is a reactor that includes a coil having a winding portion, a magnetic core having an inner core portion and an outer core portion, and a resin molded portion covering a surface of the magnetic core. The inner core portion is a single body having a non-separated structure, and includes a groove portion provided along a direction intersecting with the axial direction in a surface in the vicinity of an end portion of the inner core portion located in the axial direction. The resin molded portion includes an outer resin portion and an inner resin portion that covers the surface of the end portion of the inner core portion located in the axial direction and with which an inner portion of the groove portion is filled. The inner resin portion is continuous with the outer resin portion.

Abstract: A wiring member includes at least one wire-like transmission member having a zigzag section extending in a zigzag form, and a flexible base material having an arrangement surface. The zigzag section is disposed on the arrangement surface. The base material keeps the zigzag section in a zigzag form.

Abstract: An in-vehicle backup power supply device includes a battery unit having a plurality of unit batteries connected in series and a discharge circuit configured to perform a first discharge operation for supplying power to a third conductive path based on a charge accumulated in the battery unit, a balance circuit performs a cell balancing operation on the battery unit, and a control unit controls the balance circuit, and the balance circuit is performs a second discharge operation for supplying power to the third conductive path based on a charge accumulated in a plurality of power storage elements, and the control unit performs a first control for causing the balance circuit to perform the cell balancing operation and a second control for causing the balance circuit to perform the second discharge operation, and if a failure in which the first discharge operation cannot operate normally occurs, performs the second control.

Abstract: Provided is a configuration that can detect the internal resistance of a power storage unit. An internal resistance detection device includes a DC-DC converter that is configured to raise the output voltage to a target voltage by performing constant current operation in which the charging current is output at a target charging current, and, when the output voltage reaches the target voltage, to control power such that the charging current is lowered by performing constant voltage operation in which the output voltage is fixed at the target voltage. A control unit detects the internal resistance of a power storage unit based on a target charging current Ichg during constant current operation by the DC-DC converter, a drop time, which is the time that passes from when constant voltage operation starts to when the charging current drops to a predetermined current value, and a capacity of the power storage unit.

Abstract: The present disclosure realizes a configuration capable of setting and changing the value of a voltage that is output from a voltage regulator, while suppressing an increase in the size of an apparatus and keeping the apparatus from being complex. A control unit of a voltage regulator operates to switch a state of each port to either a first state or a second state. An input circuit unit applies a voltage corresponding to the combination of the first states at the ports to the base of a transistor. Electricity flows through the transistor when at least one of the ports is in the first state. A switch is turned on when electricity flows through the transistor. A Zener diode sets an output voltage applied to a second conductive path to a voltage corresponding to a voltage applied to the base of the transistor.

Abstract: Provided is a service hole cover covering a service hole formed in an inner panel in a vehicle door panel, the service hole cover including: a cover body part covering the service hole; and at least one catching part provided to protrude from the cover body part to a side of the inner panel, wherein the catching part is caught on the inner panel while at least a part of the service hole is opened.

Abstract: A reactor includes a coil having a wound part, a magnetic core, and a holding member holding an end face of the wound part in an axial direction and the outer core part. The holding member being a frame-shaped body having a through hole into which an end portion of the inner core part in the axial direction is inserted, the outer core part having an inward surface opposing the inner core part, an outward surface on an opposite side to the inward surface, and a plurality of peripheral surfaces joining between the inward surface and the outward surface. The reactor includes an outer retraining member pressing the outer core part against the holding member. The outer retraining member has a pressing piece pressing the outward surface of the outer core part, and an engaging leg piece extending from the pressing piece and having a distal end engaging the holding member.

Abstract: A covered electrical wire comprises a conductor and an insulating covering layer provided outside the conductor, the conductor being a stranded wire composed of a plurality of copper alloy wires composed of a copper alloy and twisted together, and having a wire diameter of 0.5 mm or less, the copper alloy containing Fe in an amount of 0.1% by mass or more and 1.6% by mass or less, P in an amount of 0.05% by mass or more and 0.7% by mass or less, and one or more elements selected from Ni, Al, Cr and Co in an amount of 0.01% by mass or more and 0.7% by mass or less in total, with a balance being Cu and impurities.

Abstract: A door wiring module includes: a first service hole cover covering a first service hole formed in an inner panel; a second service hole cover covering a second service hole formed in the inner panel; and a plurality of wiring members, wherein the plurality of wiring members include: a first wiring member held by the first service hole cover to be directed to a first door apparatus; and a second wiring member held by the second service hole cover to be directed to a second door apparatus, and the plurality of wiring members include a connection route portion connecting the first service hole cover and the second service hole cover, and being bendable.

Abstract: A door wiring module includes a service hole cover having a main surface with a groove, at least one wiring member housed in the groove, and a wiring cover covering an opening of the groove. A first attachment part and a second attachment part are provided on both sides of the groove in the main surface of the service hole cover. The service hole cover and the wiring cover are provided so that they can be in a free state where a space is formed between the second end portion and the second attachment part in a temporal attachment state where the first end portion of the wiring cover is attached to the first attachment part and the second end portion of the wiring cover is not attached to the second attachment part.

Abstract: A door wiring module includes a plurality of wiring members and an inner side route regulation member and an outer side route regulation member regulating routes of the plurality of wiring members. The plurality of wiring members include: an outer side regulation route portion disposed between the outer panel and the inner panel so that a route of the outer side regulation route portion is regulated by the outer side route regulation member; an inner side regulation route portion disposed closer to an inner side of a vehicle interior than the outer side regulation route portion so that a route of the inner side regulation route portion is regulated by the inner side route regulation member; and a connection route portion between the inner side regulation route portion and the outer side regulation route portion. The connection route portion includes an easy-bending part bended more easily than the outer side regulation route portion.

Abstract: An on-board communication device, an on-board communication system, and a specific processing prohibition method for a vehicle, in which a specific service can be prevented from being provided without limitation is disclosed. The on-board communication system can perform update processing of a relay processing program for a gateway using a wireless communication path through a wireless communication device or a communication path through a communication cable connected to a connector unit. When receiving an authentication request through either of the two communication paths, the gateway performs authentication processing, and if the authentication processing was successful, the gateway receives an update relay processing program through this communication path, and performs update processing by overwriting a stored relay processing program.