Honda Motor Co., Ltd.

Hideaki Tsukahara

Yohei Takeda

Akio Futatsudera

Naoyuki Tanaka

Toshimi Kaneko

Masanori Matsushita

Yuichiro Yamazaki

Youichirou Fukao

An engaging and disengaging controller for controlling the engagement and disengagement of a power transmission path by supplying a working oil of a predetermined pressure to an engaging and disengaging mechanism includes a valve for opening and closing a flow path of the working oil, and an opening/closing detection section which detects an opened or closed state of the valve. A malfunction detection apparatus for the engaging and disengaging controller includes an opening/closing control section for the valve, a time counting section which counts a predetermined time from the start of an opening/closing control, and a malfunction detection section which determines that the engaging and disengaging controller malfunctions in the case where the time counting section ends counting in such a state that the results of a detection by the opening/closing detection section do not coincide with the details of a control executed by the opening/closing control section.

Malfunction detection apparatus and hybrid vehicle

A hybrid vehicle determines whether or not the drive mode thereof is shifted from a series drive to an engine direct coupled drive with a power transmission engaging/disengaging portion applied, derives a rotational speed at a drive wheel side of the power transmission engaging/disengaging portion which corresponds to a driving speed as an applying rotational speed of an internal combustion engine at which the power transmission engaging/disengaging portion is applied, and applies the power transmission engaging/disengaging portion by controlling the operation of the internal combustion engine when a difference in rotational speed between the rotational speed of the internal combustion engine and the applying rotational speed becomes equal to or smaller than a predetermined value after the shift to the engine direct coupled drive is determined.

Hybrid vehicle and method for controlling same

Growing community of inventors

Wako, Japan

Hideaki Tsukahara