Aisin Corporation Patente

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A power conversion device is a power conversion device provided in a vehicle drive device that transmits driving force of a traveling motor to a wheel, the power conversion device includes a plurality of conversion modules each of which is disposed in each of a plurality of layers overlapping each other in a vertical direction, a plurality of the conversion modules respectively arranged in the layers have a relatively larger weight from the layer on an upper side toward the layer on a lower side, and among a plurality of electronic components constituting the conversion module in the same layer, the electronic component having a relatively large weight is disposed in a gravity center region in the layer on the lower side.

A power conversion device includes a plurality of electronic components having different amounts of heat generation and different heat-resistant temperatures, and a cooling plate through which a cooling fluid that cools a plurality of the electronic components flows. A plurality of the electronic components include a first cooling target having a relatively small amount of heat generation and a relatively low heat-resistant temperature, and a second cooling target having a relatively large amount of heat generation and a relatively high heat-resistant temperature, and in the cooling plate, a flow path is formed such that the cooling fluid flows from the first cooling target toward the second cooling target.

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An object detection device includes a plurality of transmission and reception units each of which is configured to transmit a transmission wave and receive a reflected wave, a road-surface reflection intensity calculation unit configured to calculate, on a basis of the reflected wave received by each of a pair of transmission and reception units that are in a symmetrical positional relationship in a shape of a mobile object and are installed at a same height among the plurality of transmission and reception units, first road-surface reflection intensity that is intensity of a road-surface reflection wave received by one transmission and reception unit of the pair of transmission and reception units and second road-surface reflection intensity that is intensity of a road-surface reflection wave received by the other transmission and reception unit of the pair of transmission and reception units, and an abnormality detection unit configured to detect an abnormality in at least one of the pair of transmission and reception units on a basis of a difference between the first road-surface reflection intensity and the second road-surface reflection intensity.

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A vehicle drive device includes a rotating electrical machine that includes a stator having a stator core, a tube member that is made of resin and covers at least an outer circumferential surface of the stator core, and a case that houses the rotating electrical machine and the tube member, and a refrigerant flow path through which a refrigerant for cooling the stator core flows is formed between the tube member and the case.

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An object detection device detects an obstacle present around a mobile object on a basis of a time-series change in intensity of a reflected wave generated by a transmission wave transmitted from the mobile object being reflected by an object, and the object detection device includes a threshold calculation unit configured to calculate a varying threshold varying depending on movement of the mobile object on a basis of a moving average value of intensity of the reflected wave, and a determination unit configured to determine that the obstacle is present in a case where intensity of the reflected wave is larger than a predetermined fixed threshold and the varying threshold.

A tire (80) of a wheel-type power reception body (10) has an annular tread section (80b) forming a tread surface (80a). A conductive band (60) is a band-shaped member having conductivity and flexibility and is continuously disposed in a circumferential direction. A plurality of conductive bodies (83) are disposed so as to extend through the tread section (80b) and are electrically connected to the conductive band (60).

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An object detection device includes: an acquisition unit that acquires distance information indicating a distance from a transmission-reception unit mounted on a vehicle to an object by performing communication with the transmission-reception unit, based on a time until a sound wave transmitted from the transmission-reception unit is reflected by the object and returns; a communication interruption setting unit that sets an interruption timing at which communication processing between the transmission-reception unit and the acquisition unit is temporarily interrupted based on at least one of a relationship between a detection setting distance in a detection scene of the object and communication noise due to the communication and a relationship between road surface noise determined by a mounting height of the transmission-reception unit from a road surface and the communication noise; and a communication resumption setting unit that enables the communication processing to be resumed after a predetermined interruption period has elapsed since the interruption of the communication processing or after an interruption period determined based on previously acquired distance information to the object has elapsed.

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A fine water discharge device (10, 10B) of a human body which discharges fine water to the human body includes: fine water generating units (42) being brought into a moisture absorption state and a moisture release state in which moisture is absorbed in, and is released from, a conductive polymer film (44b) due to a decrease and an increase in temperature, respectively and disposed in parallel; a blowing unit (45) blowing air so that air flows through the fine water generating units; an electrifying portion (24) individually electrifying the fine water generating units so that a temperature of each fine water generating unit is changed depending on electrification; and a control portion (22) controlling the electrifying portion and the blowing unit so that the fine water generating units are individually switched between the moisture absorption state and the moisture release state to discharge the fine water by blowing air.

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Zusammenfassung wird geladen …