Panasonic Intellectual Property Management Co., Ltd.

Fuji Jukogyo Kabushiki Kaisha

Ryota Hosaka

Kazushige Kakutani

Takashi Kamiya

Kenji Taguchi

Nobuo Yamamoto

A power conversion apparatus capable of cheaply securing safety and achieving watertightness. The power conversion apparatus () has: a charging device () for charging from an external power source () to a cell (); an inverter () for converting the current of the cell () from direct current to alternating current and supplying the current to a motor (); and a junction box () for relaying an electrical connection. The inverter (), the charging device (), and the junction box () are contained in a single housing. Also, the charging device () and the junction box () are electrically connected, and the junction box () and the inverter () are electrically connected. Also, the junction box () and the inverter () are connected by a bus bar ().

Power conversion apparatus and junction box

A glow power selected from a map based on a coolant temperature and an intake air temperature is applied to a glow plug provided at a combustion cylinder after an engine starts. Air-fuel mixture is heated and combusted, and then a rotation variation is calculated from a difference between a maximum rotating speed and a minimum rotating speed of the combustion cylinder. If the rotation variation is outside an allowable range with reference to an average rotation variation for four cylinders, the glow power corresponding to the combustion cylinder is corrected by a correction value set based on the rotation variation, thereby equalizing rotation variations for all cylinders.

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Tokyo, Japan

Ryota Hosaka