Honda Motor Co., Ltd.

Honda Giken Kogyo Kabushiki Kaisha

Hiroshi Uruno

Toshio Yamagiwa

Daisuke Hayashi

Hideaki Suzuki

Shoji Motodate

Yoshinori Kawashima

Takashi Ohzeki

Akira Hamauzu

Mamoru Mikame

Hirohisa Kitaura

Kiyoaki Yokoyama

Atsushi Niimi

Takashi Umemoto

Akira Hamazu

A harness outlet structure of an engine permitting a reliable shield at a harness outlet of the engine. The structure includes a wiring harness is clamped by a shield cover and an engine main body via a grommet bracket. The grommet bracket includes a groove having a width equivalent to the thickness of the shield cover disposed circumferentially between two flange portions of the grommet bracket. A harness overall for shielding the wiring harness is mounted externally on a proximal end of the grommet bracket. The harness overall is a shield outer jacket body formed from braided metal fibers. The harness overall is inserted over an outside of the proximal end of the grommet bracket until one end of the harness overall contacts the flange portion. The harness overall is then joined by a coupling ring.

Harness outlet structure of engine

An electronic control device is provided for an aviation engine. Each cylinder of the engine is equipped with main ignition plugs and back-up ignition plugs. Lane A including a first CPU and lane B including a second CPU are included in an ECU. The ignition control system is multiplexed by the two lanes A, B. The first and second CPU independently calculate ignition timing for each cylinder based on each sensor signal, and then exchange the results of these calculations with each other. At each cylinder, ignition timing is synchronized in such a manner that ignition timing of the main ignition plugs and ignition timing of the back-up ignition plugs match. The electronic control device so configured has a high level of redundancy with a small number of CPU's. Thus, electronic control device can be provided for the aviation engine with few limitations placed in relation to installation location.

Electronic control device for aviation engine

A shield cover for an engine is provided to shield electric parts, in an engine wherein an engine body includes a crankcase having a plurality of cylinder bores. An intake chamber common to all of the cylinder bores is spaced away from the crankcase. The shield cover is made in one piece, making it possible to reduce the number of parts and also of the cost, and to achieve a generally compact configuration of the engine. A plurality of electric partsL,R,L,R,are disposed around an intake plenum, and the plural electric partsL,R,L,R,are covered with a shield coverattached to the engine bodyin such a manner as to cover at least part of the intake plenum

Engine including electrical interference shield

A redundant mechanism includes two pressure regulating valves for covering one of the pressure regulating valves when the other one is in a defective condition. First and second pressure regulating valves are provided as pressure regulating members of the fuel injection circuit. The valves are connected to the reflux passage and the by-pass passage that communicates with the fuel injection passage via the first and the second orifices, respectively. First and second sensors are provided for detecting the fuel pressure applied on the respective pressure regulating valves separately. A controller of the failure diagnostic member compares the fuel pressures P , P detected by the first and second sensors and the predetermined fuel pressure P in the fuel injection passage. If P P , both of the first and the second pressure regulating valves are determined to be normal. When a defective operating condition occurs in one of the pressure regulating valves, P and P vary. Therefore, it is determined to be abnormal based on the differential pressure and a display is activated.

Fuel injection apparatus for an engine

The invention relates to an electric motor driven vehicle having a driving unit assembled with a motor and transmission mechanism. In order to avoid a load in a low rotational state of the motor, the transmission mechanism is connected with the motor and driving wheel within a range of predetermined rotational numbers in which the motor approaches the vicinity of maximum efficiency. Accordingly, motor driving is possible from the start, and because of the small electric power and the low heat generating quantity, cruising distance is extended and the apparatus is consequently made to be compact and of light weight. The transmission is provided with an automatic starting clutch and an automatic transmission, and when a belt type stepless speed change transmission is used as the automatic transmission, operation of the motor near the vicinity of maximum efficiency can always be maintained in the usual speed change range. The driving unit can be constructed compactly as a power unit of swing type. Further, an advantageous cooling mechanism of the motor and a wiring structure of an electric power supply cord are disclosed herein.

Electric motor driven vehicle and power unit thereof

The invention relates to an electric motor driven vehicle having a driving unit assembled with a motor and transmission mechanism. In order to avoid a load in a low rotational state of the motor, the transmission mechanism is connected with the motor and driving wheel within a range of predetermined rotational numbers in which the motor approaches the vicinity of maximum efficiency. Accordingly, motor driving is possible from the start, and because of the small electric power and the low heat generating quantity, cruising distance is extended and the apparatus is consequently made to be compact and of light weight. The transmission is provided with an automatic starting clutch and an automatic transmission is used as the automatic transmission, operation of the motor near the vicinity of maximum efficiency can always be maintained in the usual speed change range. The driving unit can be constructed compactly as a power unit of swing type. Further, an advantageous cooling mechanism of the motor and a wiring structure of an electric power supply cord are disclosed herein.

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Saitama, Japan

Hiroshi Uruno