Alps Electric Co., Ltd.

Nippon Sheet Glass Company, Limited

Honda Motor Co., Ltd.

Tomoki Ikeda

Hideaki Oshima

Norio Tanaka

Hiroshi Iijima

Masashi Nakagawa

Makoto Ueda

Tomoyuki Fukumaru

Toshiyuki Takahashi

Tadaaki Onishi

Naofumi Shiraishi

Hiroshi Kuribayashi

Naoki Oie

Tomotaka Suzuki

Kouta Iijima

Seiji Katakura

Tatsuo Saito

Toshiaki Ichouda

Ichiro Okajima

Tadaaki Ohnishi

A control system for an internal combustion engine, which controls an output torque of the internal combustion engine for driving a vehicle, is provided. An engine rotational speed is detected, and a change amount of the detected engine rotational speed is calculated. The output torque control amount of the engine is corrected so that the rotational speed change amount coincides with the center value of the local minimum value and the local maximum value of the rotational speed change amount. Specifically, a torque correction amount is calculated according to a torque value which is equal to half of a difference between peak vibration torque values corresponding to the local minimum value and the local maximum value of the rotational speed change amount, and an output torque control amount is corrected with the torque correction amount.

Control system for internal combustion engine

An on-board antenna device, comprises a radiation element () formed on an inner-surface of a window glass () for a vehicle (), a base plate () having an opening, the base plate () being fixed on the inner-surface of the window glass () so as to surround the radiation element (), and a housing () assembled onto the base plate (), the housing () having an opening surrounding the radiation element, wherein the base plate has four leakage prevention walls (and) and each of four leakage prevention walls (and) has a surface substantially parallel to each of four sidewalls (and) of the housing ().

On-board antenna device

A sheet of glass (rear glass) is provided with a radiation conductor. An electronic circuit unit includes a base plate soldered on the radiation conductor so as to be fixed on the sheet of glass; a frame body which houses a circuit substrate and is screwed on the base plate; and a cover for covering the frame body. The base plate has a narrow section that connects a soldering section and other sections of the base plate. The soldering section is provided with a protrusion that abuts on the radiation conductor such that a solder-accumulation space is formed around the protrusion. Furthermore, the base plate is provided with a plurality of height-adjustment portions disposed at different positions and distant from the soldering section. Each height-adjustment portion has substantially the same dimension as the protrusion.

In-vehicle antenna apparatus

Rear glass is provided with a patch-like radiation conductor and a first ground conductor surrounding the patch-like radiation conductor. An electronic circuit unit includes a base plate fixed on the rear glass; a frame body which houses a circuit substrate and is fixed on the base plate; and a cover for covering the frame body. One surface of the circuit substrate defines a component-holding surface which is connected with a second end of a feeder cable connected with the radiation conductor and the first ground conductor. The other surface of the circuit substrate is provided with a second ground conductor to function as a radio-wave reflective surface. The radio-wave reflective surface faces the radiation conductor and the first ground conductor disposed on the rear glass such that the radio-wave reflective surface is separated from the radiation conductor and the first ground conductor by a predetermined distance.

A vehicular antenna apparatus includes a radiating conductor directly patterned on a glass surface of a vehicle, a base plate fixed to the glass surface, a frame screwed to the base plate, a power feeding substrate and a circuit substrate accommodated and held in the frame, a connecting small substrate electrically connecting both substrates, and a cover attached on the top of the frame. A patterned surface of the power feeding substrate is close to and faces the glass surface, and thereby indirect power feeding can be performed. Both ends of the connecting small substrate are received in connecting holes. A power feeding pattern and a preamplifier circuit are connected via a microstrip line.

Vehicular antenna apparatus

Rear glass is provided with a radiation conductor and a ground conductor. An electronic circuit unit includes a base plate fixed on the rear glass; a frame body which houses a circuit substrate and is screwed on the base plate; and a cover for covering the frame body. The frame body and the cover are provided with drainage holes. These drainage holes are provided at the bottommost portion of the electronic circuit unit in a state where the electronic circuit unit is mounted on the rear glass. Furthermore, the frame body is provided with a plurality of tongue pieces that are bent in order to support the circuit substrate, and clearance holes provided for forming the tongue pieces. The clearance holes that are disposed in one of side walls of the frame body are used as drainage holes.

A sheet of glass (rear glass) is provided with a radiation conductor and a ground conductor. An electronic circuit unit includes a base plate fixed on the sheet of glass; a frame body which houses a circuit substrate and is screwed on the base plate; and a cover for covering the frame body. The circuit substrate has a component-holding surface and a radio-wave reflective surface at opposite surfaces of the circuit substrate, the radio-wave reflective surface facing the radiation conductor. A section of the frame body proximate the sheet of glass is provided with an engagement portion that fits in an opening of the base plate; and stoppers placed on sections of the base plate that are adjacent to the opening. An amount of insertion of the engagement portion with respect to the opening is set within a thickness of the base plate.

There is provided a vehicle antenna device having a high connection reliability and mounted simply. A vehicle antenna device comprise a film antenna unitin which an emission conductor patternis formed on a resin filmand a power feeding terminalis exposed to a tongue partan insulating casinghaving slitsandfor inserting the tongue partand an openingfor inserting a coaxial cable, and installed in the vicinity of the film antenna unit; and a circuit substratewhich is housed and retained within the casingand connected to the power feeding terminaland the coaxial cablewherein the tongue part is loaded within the casingby passing the tongue partthrough any one of both slitsandand a an electrode pinconnected electro-mechanically to the circuit substrateis pressure-contacted to the power feeding terminalwithin the casing

Vehicle antenna device having high power feeding reliability

A glass plate is formed with a radiating conductor. An electronic circuit unit includes a base plate soldered to the radiating conductor to be fixed to the glass plate, a frame fixed to the base plate with screws for accommodating the circuit board, and a cover crowned on the frame. The base plate is provided with a holding piece which protrudes the inside of the frame, and a hooking piece which protrudes out of frame. The cover is provided with a holding groove. A feeder line connected to the radiating conductor is inserted between the holding piece and the glass plate. The feeder line drawn out of the frame is hooked on the hooking piece, and led to the circuit board by the holding groove.

Wiring structure of vehicle-mounted antenna system

An antenna device is provided in which a common mode current does not flow in a coaxial cable. The coaxial cable is uprighted at the end of the base plate and bent toward the notched portion of the cover so that the connector reaches to the notched portion. A short-circuit stub structure is provided in such a manner that a part of the outer sheath of the coaxial cable is removed to expose the outer conductor and a ring-shaped metal terminal is crimped to the exposed outer conductor. The ring-shaped metal terminal is fixed by using a screw to an acceptance member made of a stainless steel provided on the base plate. The terminal is provided at the position within 0.25&#x3bb; from the feeding point of the ground antenna element.

Antenna device

A mounting structure of the on-vehicle electronic circuit unit according to the present invention includes a base plate fixed to a glass plate of an automobile, and a frame mounted on the base plate and surrounded by four side plates. Since recessed parts are provided on the both side of protrusions of the frame, the volume of the frame is reduced. Also, since the tapered portion having a small volume, which is the protruded side of the frame, is protruded to the inside of the automobile, the space of the inside of the automobile becomes enlarged and baggage can be loaded in the vicinity of the glass plate in the rearward of the automobile.

Mounting structure of on-vehicle electronic circuit unit

An on-vehicle electronic circuit unit has cut grooves having openings that are formed by opening one end of each side plate of a frame. Therefore, a cable can be fitted into the cut groove from the opening side by pressing to be held (mounted) therein with a simple mounting operation. Thus, it is possible to improve productivity and to reduce manufacturing costs. In addition, since the cable is provided with an elastic heat shrinkable tube, the heat shrinkable tube is easily attached to the cable, and thus the manufacturing costs are reduced. Also, since the cable is stably held in the cut groove by the elasticity of the heat shrinkable tube, it is possible to firmly mount the cable.

On-vehicle electronic circuit unit

A satellite broadcast receiving converter has a housing, a waveguide, and a short-circuit wall, which are stamped out of a single metal sheet and are then folded.

Satellite broadcast receiving converter

A converter for satellite broadcast reception superior in productivity and inexpensive with reduced material cost is provided. In this converter, a waveguide is formed by bending a metallic plate and is integrally provided with a holding portion which is positioned outside the waveguide. An insulating portion of a probe is held by the holding portion.

Converter for satellite broadcast reception with an externally held probe

The object of the present invention is to provide highly productive and yet low-cost products. To this end, the fitting structure for electronic apparatuses according to the present invention fastens at the same time the fastening section. If integral with the housing and fastening pieces integral with the first cover to the chassis by means of screws and brings the flat plate section of the first cover to the opening edge of the housing by the clamping of screws , thereby, the first cover can be brought into tight contact with the housing at the same time as the electronic apparatus is fastened by screws, removing the necessity of twisting operations which had formerly been required, and highly productive and yet low-cost products can be provided.

Growing community of inventors

Fukushima-ken, Japan

Tomoki Ikeda