Honda Motor Co., Ltd.

Honda Giken Kogyo Kabushiki Kaisha

Tomoya Kono

Mamoru Uraki

Takeru Abe

Hajime Shogase

Ryutaro Yamazaki

Koji Suzuki

Naoki Murasawa

Takao Kochi

Tsuguhito Ichiriki

Osamu Nishioka

Sumio Sato

Masamichi Horiyama

A mounting structure is provided for an air-fuel ratio sensor on an exhaust pipe in a motorcycle in which a concentration of oxygen in an exhaust gas can be detected efficiently and accurately by the air-fuel ratio sensor. The air-fuel ratio sensor is mounted on a convergent connector of exhaust pipes, which, in turn, are operatively connected to the cylinders of a multi-cylinder engine. The air-fuel ratio sensor is located upstream of catalytic converters provided in the exhaust pipes, and may be mounted so as to be oriented substantially vertically when the motorcycle is in an upright configuration, or alternatively, may be inclined toward the rear of the motorcycle.

Mounting structure for an air-fuel ratio sensor in a motorcycle, and exhaust subassembly including same

A mounting structure for an air-fuel ratio sensor in a motorcycle is provided which eliminates the influence of water gathered in an exhaust pipe upon the air-fuel ratio sensor and improves the mountability of the air-fuel ratio sensor to the exhaust pipe. The air-fuel ratio sensor is mounted on an exhaust pipe connected to an engine in a motorcycle so that the air-fuel ratio sensor extends radially with respect to a longitudinal axis of the exhaust pipe, and is inclined upward by an angle of 10&#xb0; or more with respect to a horizontal line H passing through the center of the exhaust pipein its cross section. The air-fuel ratio sensor is pointed toward the central lateral plane of the motorcycle as viewed in front elevation of the motorcycle.

A seat heating element and electronic temperature selector is provided for use in a motorcycle or other saddle-type vehicle, driven by an engine as a source of power. A vehicle seat is provided with first and second heating elements, and the temperature selector controls a supply of electric power to the heating elements, to warm up the vehicle seat. The control unit includes first and second electric relays for use in temporarily blocking power from the electric power source to the heating element, for a predetermined interval, upon detection of an accelerated state of the vehicle. The heating element and control system thereof improves acceleration performance of the vehicle, even when using an electric seat heating element, by temporarily interrupting electric power flow to the seat heating element during acceleration.

Electrically heated seat apparatus for a vehicle, vehicle incorporating same, and method of using same

A controller that executes engine output control that a throttle is closed when a boat is navigated at a predetermined speed or higher and the output of an engine is gradually increased up to predetermined output when a steering system is steered right or left at a predetermined angle or more is provided. Thus, an overshoot phenomenon that the engine speed is held at a predetermined engine speed after the engine speed once increases up to the predetermined engine speed or higher when the engine speed is increased in deceleration can be avoided. As a result, the body of the boat can be prevented from sliding laterally to a great extent at the beginning of turning and the turning performance of the body can be enhanced.

Jet propulsion boat

When a large load is exerted during restraint control of an engine of a jet propulsion boat, the drop of the engine revolution frequency causes a feeling of harsh braking. An engine revolution frequency control apparatus provided to prevent this problem includes a engine revolution frequency detector for detecting an engine revolution frequency, and threshold value setting units for setting first and second engine revolution frequency threshold values. The second threshold value is set to be higher than the first threshold value. An engine control unit includes an overspeed governing capability that starts restraint control for restraining rotation when the engine revolution frequency detected by the engine revolution frequency detector is more than said first threshold value when the engine is accelerating, and terminates restraint control when the engine revolution frequency is less than a second thresholds value during deceleration.

Growing community of inventors

Saitama, Japan

Tomoya Kono