Abstract: A gate driving power source device can be miniaturized by sharing power source units, and a large current can be prevented from locally flowing in a single chip even when a short-circuit failure occurs in a multi-phase conversion circuit included in a power conversion device. There is provided a shared power source unit supplying a shared DC power source to a gate drive circuit provided in any one of a plurality of lower arms of multi-phase conversion circuits or any one of a plurality of upper arms of the multi-phase conversion circuit and gate drive circuits provided in upper arms or lower arms of other conversion circuits.

Abstract: An object of the present invention is to provide an electric power steering apparatus having a wiring structure effective for simplification. A power supply circuit board 23, a power conversion circuit board 24, and a control circuit board 25 are stacked and disposed in three stages in which the power supply circuit board 23 is disposed in a middle with a first flexible portion 34 and a second flexible portion 35 as a bend portion. A power supply circuit board connection terminal 42B and a control circuit board connection terminal 52B provided in a connector terminal assembly are electrically connected to a receiving terminal 42C of the power supply circuit board 23 and a receiving terminal 52C of the control circuit board 25, respectively, by being inserted and press-fitted thereinto.

Abstract: A two-wire displacement sensor device includes an LC oscillation circuit including a coil whose inductance changes in accordance with a displacement amount of an object and an oscillation unit provided with capacitors and amplifying elements; and an interface unit serving as a signal output unit and a power supply input unit. The interface unit includes a constant current circuit that outputs at least two current values.

Abstract: An object of the present invention is to provide a strain amount detection device capable of accurately detecting deformations, in multiple directions, of a tire by one strain measuring element. A strain amount detection device according to the present invention includes a disk-shaped base member that holds a strain measuring element, in which the base member acts as a strain body by transmitting strain of a tire to the strain measuring element.

Abstract: In a vehicular steering control device, a steer-by-wire system, and a method for controlling a steer-by-wire system according to the present invention, if an abnormality of a rotation angle sensor of a turning motor is detected, open-loop control is performed on the turning motor based on a rotation angle of a motor shaft before the abnormality of the rotation angle sensor is detected and information concerning a reaction generation device that applies reaction torque to steering wheel. Consequently, it is possible to continue control of a turning angle even if the rotation angle sensor of the turning motor fails, while suppressing an increase in system cost.

Abstract: Provided is a map storage device that generates a map by automatically determining and storing a necessary map without a user's operation. The map storage device includes: a map creation unit that creates map data of a route traveled by a vehicle; a map data temporary storage unit that temporarily stores the map data; a map data storage unit that non-temporarily stores a part of the map data temporarily stored in the map data temporary storage unit; a behavior history information storage unit that stores behavior history information that is a behavior history of the vehicle; and a vehicle behavior determination unit that determines whether or not to store, in the map data storage unit, the map data temporarily stored in the map data temporary storage unit, based on the behavior history information.

Abstract: A software component update system is connected to a first database and a second database and includes a component tree rebuilding unit that rebuilds a software component tree of the second database on the basis of tag information and software component tree information of the first database; a component extraction unit that specifies the software components of the second database requiring update mirroring, on the basis of the rebuilt software component tree; and a file update unit that updates the software component file of the specified software components.

Abstract: A physical quantity measurement device is configured to seal a cavity portion on a back surface side of a diaphragm of a thermal air flow rate sensor while improving measurement accuracy. The device may include a lead frame having a mounting surface on which a flow rate sensor which is the thermal air flow rate sensor is mounted, and a flow passage forming member disposed on a back surface opposite to the mounting surface of the lead frame. A ventilation flow path is formed by a first through hole in communication with a cavity portion of the flow rate sensor, a second through hole provided in the lead frame and opened in the mounting surface, and a connection flow path that is defined between the lead frame and the flow passage forming member and connecting the first through hole and the second through hole.

Abstract: This shock absorber includes a friction generating member which is provided at a position on a side defined by a seal member of a cylinder and comes into sliding contact with a piston rod. The friction generating member has an annular elastic rubber portion which comes into sliding contact with the piston rod and a base portion to which the elastic rubber portion is fixedly attached. The elastic rubber portion is formed such that an upstream side and a downstream side are able to communicate with each other when a differential pressure between a one side chamber of the cylinder and a reservoir chamber reaches a predetermined pressure.

Abstract: A power semiconductor module, which is a semiconductor device, includes a semiconductor element 155 and a lead frame 318 that is disposed to face the semiconductor element 155 and connected to the semiconductor element 155 by a solder material 162. The lead frame 318 has the top surface 331 including a surface facing the semiconductor element 155, and the side surface 334 connected to the peripheral edge portion 333 of the top surface 331 at a predetermined angle with respect to the top surface 331. The top surface of the lead frame 318 includes the solder surface 332 that is in contact with the solder material 162 and the solder resistance surface on which the solder material 162 is less wettable than on the solder surface 332. The solder resistance surface is formed to surround the periphery of the solder surface 332. In this manner, when the semiconductor element and the lead frame are solder-joined in the semiconductor device, the region where the solder wet-spreads is appropriately controlled.

Abstract: There is provided an arithmetic operation device which is connected to a plurality of electronic control units. One or more electronic control units of the plurality of electronic control units constitute each of functions.

Abstract: Provided is a power converter that allows a reduction in EMC noise current flowing through a control circuit board. A power converter 1 includes a semiconductor module 52, a capacitor 51, a control circuit board 45a, positive and negative-side bus bars 41, 42 connecting the semiconductor module 52 and the capacitor 51, a base 33 electrically connected to a ground of the control circuit board 45a, the control circuit board 45a being placed on the base 33, and an electrical conductor 35 electrically connected to the base 33 and extending in a stacking direction in which the base 33 and the control circuit board 45a are stacked. The positive and negative-side bus bars 41, 42 extend around the electrical conductor 35 and are connected to the semiconductor module 52.

Abstract: A shock absorber includes a seal member that is slidably in contact with a piston rod, a friction member that is formed of an annular elastic rubber section slidably in contact with the piston rod and an annular base section to which the elastic rubber section is fixed, and an communication path that reduces pressure difference between both sides of the friction member in axial direction. The elastic rubber section is provided with a minimum inner diameter section, a first enlarged diameter section, and a second enlarged diameter section. A force is applied to the piston rod by the friction member such that movement in an outward direction of the cylinder becomes difficult and movement in an inward direction of the cylinder becomes easy.

Abstract: An electric brake comprises a brake mechanism that transmits a thrust generated by driving an electric motor to a piston that moves brake pads pressed against a disc rotor; a thrust sensor that detects the thrust applied to the piston; a rotation angle sensor that detects a rotational position of the electric motor; and a rear electric brake ECU that controls the driving of the electric motor on the basis of a braking command. The rear electric brake ECU detects an abnormality in the brake mechanism from a detected value of the thrust sensor and a detected value of the rotation angle sensor in response to the braking command which are obtained when the electric motor is driven.

Abstract: Provided is a power conversion device capable of suppressing an increase in cost and an increase in size of the device. A control board 113 that includes a connection unit 140 to which a signal connector 114 which transmits a signal is connected, a base member 120 that supports the control board 113 and has conductivity, and a case 110 that accommodates the control board 113 and the base member 120 and is connected to a ground is provided. The base member 120 includes a supporting portion 141 that is connected to one surface of the control board 113, and a first extending portion 130 of which one end is connected to the supporting portion 141 and the other end extends to the case 110 to be connected to the case 110. An electronic component 113a that generates noise is mounted on the control board 113, and the first extending portion 130 and the supporting portion 141 form an electrical path.

Abstract: Provided is a vehicle control system which selects detection information of a delay time or reliability according to a content of a driving support function and supplies the detection information to a control processing unit.

Abstract: An electronic control device includes a plurality of circuit boards that transmit signals to each other and a power supply connector for direct-current power. A ground line connected to a ground terminal of the power supply connector is connected to a ground of one of the plurality of circuit boards by way of a ground of another one of the plurality of circuit boards. In this way, the electronic control device including the plurality of circuit boards needs fewer noise reduction components while enabling easier routing of ground lines.

Abstract: There is provided a gate drive circuit that controls a gate voltage applied to a gate terminal of a switching element and drives the switching element. The gate drive circuit includes an overcurrent detection circuit that detects an overcurrent state based on a value of a current flowing through the switching element. A monitor voltage of a power supply line that is connected to the switching element and supplies power to the switching element is input to the overcurrent detection circuit, and the overcurrent detection circuit detects an overvoltage state when the monitor voltage is equal to or greater than a predetermined threshold value.

Abstract: Optimization of a compression algorithm to be applied is realized in subgraph units of a neural network. A preferred aspect of the present invention is an information processing device that selects an algorithm for compressing a neural network. The information processing device includes a subgraph dividing section which divides the neural network into subgraphs and an optimizing section which outputs a compression configuration in which one compression technique selected from a plurality thereof is associated with each of the subgraphs.

Abstract: The present invention provides a object detection device for vehicle capable of performing distance measurement more reliably than in the past and having high compatibility for distance measurement. The present invention provides an object detection device 100 for vehicle including a first detection unit 10, a second detection unit 20, an error quantity calculation unit 30, a correction quantity calculation unit 40, and a distance correction unit 50. The error quantity calculation unit 30 compares the distances D1 and D1? of the same object detected by the first detection unit 10 and the second detection unit 20 to calculate the error quantity ?D. The correction quantity calculation unit 40 calculates the correction quantity CAt based on the error quantity ?D. The distance correction unit 50 corrects the distances D1? and D2? of the object detected by the second detection unit 20 based on the correction quantity CAt.