Mazda Motor Corporation

Takeshi Matsukawa

Isao Toda

Nobuhide Seo

Takeshi Murai

Katsumasa Sogame

Yoshiaki Anan

Masato Ishibashi

Daisuke Hamano

Hiroki Sato

Toshifumi Maemoto

Takamasa Suetomi

Shingo Hirose

Kenji Kamijo

Keita Yoshida

Shinsuke Yoshitake

A vehicle power supply system includes a first secondary battery, a second secondary battery whose output voltage is lower than that of the first secondary battery, a power conversion device configured to convert an input AC voltage into a DC voltage and output the DC voltage, a battery pack configured to receive the DC power output from the power conversion device and charge the first secondary battery, DC/DC converters configured to step down an input DC voltage to output the stepped-down DC voltage, and a power control unit configured to control the battery pack. The first secondary battery is connected to input ports of the DC/DC converters via the battery pack. An output port of the DC/DC converter is connected to a video media control unit, and the DC/DC converter is provided separately from the video media control unit. An output port of the DC/DC converter is connected to the second secondary battery.

Vehicle power supply system

A feeder circuit for a main relay to control ON of OFF of an electric supply from a high-voltage battery is constituted at least by a first harness, the main relay, a second harness and switch means which are connected in series from a plus-terminal side of a low-voltage battery to a vehicle-body ground side. The first harness and the second harness are arranged to be adjacent to each other in a specified range having a specified length so that both thereof in the above-described specified range are damaged in a vehicle collision or the like.

Harness arrangement structure of vehicle

Disclosed is an indicator device for a vehicle with an automatic transmission, which comprises a plurality of light-emitting elementseach adapted to be lighted up when one of P, R and N gear ranges corresponding thereto is selected, and a digital indicatoradapted to indicate an alphabet character 'D' when a D gear range is selected, and indicate a numeric character representing a gear position when a M gear range (manual shift mode) is selected. The indication device of the present invention makes it possible to utilize a space of an instrument panel with higher efficiency and offer enhanced visibility for a driver, while avoiding increase in production cost.

Indicator device for vehicle with automatic transmission

Growing community of inventors

Hiroshima, Japan

Takeshi Matsukawa