Honda Motor Co., Ltd.

Shigehiro Yamaguchi

Masamoto Ito

Hiroyuki Horimura

Kiyoshi Handa

Hayato Maehara

Daisuke Kuriki

Makoto Mitsukawa

Kanta Yamamoto

Naoki Yoshida

Kazuhisa Maeda

Norihiko Gogami

Yuzo Fujita

Masayoshi Takano

To provide a gas filling method in which it is possible to estimate a volume of a tank with high accuracy even when the tank has a small volume. A hydrogen filling system includes a hydrogen station having a pressure accumulator of compressed hydrogen gas, a vehicle having a hydrogen tank, a connection tube system that connects the accumulator and the tank, and a flow rate sensor and a station pressure sensor provided on the connection tube system. A hydrogen gas filling method is a method of filling the tank with the hydrogen gas from the pressure accumulator and includes estimating a volume of the hydrogen tank based on detection values of the flow rate sensor and the station pressure sensor and a volume value of the connection tube system, after a start of filling of the hydrogen tank with the hydrogen gas from the pressure accumulator.

Gas filling method

A saddle-ride type vehicle includes a vehicle body frame steerably supporting a front fork by a head pipe and swingably supporting a rear wheel unit around a pivot, an air-cooled type fuel cell unit supported by the vehicle body frame on a rear side of the head pipe and including an outside air intake port facing forward, and a vehicle body cover defining a front of an intake air space that is connected to the intake port. The vehicle body cover includes a traveling air passage changing a direction of traveling air that flows in from a front. Accordingly, it is possible to efficiently supply traveling air to a fuel cell unit that includes a fuel cell.

Saddle-ride vehicle

An exhaust system for a variable cylinder engine for assuring purification of exhaust gas without increasing the number of catalysts and an intake system for purifying blow-by gas. The exhaust system includes an activation side exhaust pipe connected to an activation cylinder group that operates normally. A deactivation side exhaust pipe is connected to a deactivation cylinder group wherein fuel supply is stopped under a particular condition. A gathering section is connected to downstream ends of the activation side exhaust pipe and the deactivation side exhaust pipe with a sub-catalyst disposed in the activation side exhaust pipe and a main catalyst disposed at the gathering section. The main catalyst is formed wherein gas passing therethrough is partitioned into flows independent of each other in a flow path direction. The activation side exhaust pipe and the deactivation side exhaust pipe are connected in a mutually independent state to the main catalyst.

Exhaust system for variable cylinder engine

Growing community of inventors

Wako, Japan

Shigehiro Yamaguchi