Denso Ten Limited

Toyota Jidosha Kabushiki Kaisha

Shunsuke Kobayashi

Takeshi Matsumoto

Daiki Hakushima

Koji Sagata

Masashi Nakamura

Kazuhiko Hamada

Takashi Moriki

Masahito Isayama

Isamu Umegaki

A power supply control apparatus includes: a first system capable of supplying electric power from a first power supply to a first load; a second system capable of supplying electric power from a second power supply to a load group including a second load and a third load having consumed electric power smaller than that of the second load; a plurality of load switches as defined herein; and a control unit configured to control the load switches so that backup control performed by the second system is executed by the electric power supply from the second power supply, in a case where an occurrence of a ground fault in the first system is detected, and when the control unit inspects as to whether the backup control can be executed, the control unit connects the load switch corresponding to the third load of the load group to execute the inspection.

Power supply control apparatus and control method

A power supply control device includes: a first system configured to supply electric power from a first power supply to a first load group; a second system configured to supply electric power from a second power supply to a second load group; a plurality of load switches configured to switch an electric power supply to each load of the first load group and the second load group; and a control unit configured to control the plurality of load switches such that electric power is supplied from the second power supply to a backup load included in at least one of the first load group and the second load group in a predetermined backup state, wherein the control unit detects a state of charge of the second power supply, and increases, in the predetermined backup state, number of the load switches to be connected as the state of charge is higher.

Power supply control device and control method

To provide an enclosure structure having relatively high rigidity to a speaker system mounted on a vehicle, and to improve frequency characteristics of sound pressure. The speaker system includes: a hollow framework member extending in a front-back direction of a vehicle; and a speaker unit installed such that an internal space of the framework member is usable as a back cavity. The framework member has a partition member at at least one end of the internal space, and spatial path lengths from the speaker unit to both longitudinal ends of the internal space are substantially the same.

Speaker system and enclosure structure of speaker system

Growing community of inventors

Nagakute, Japan

Shunsuke Kobayashi