Denso Corporation

Other

Mitsutoshi Kato

Yasuhiro Sato

Hiroyuki Saito

Kunio Nakashima

Katsuhiko Furuta

Yutaka Ichitani

Tomohisa Kishigami

Takuya Natsume

Hiroto Tanaka

Kazuo Kito

Hirotaka Egami

Keiichi Yoshino

A relay device may include a plurality of communication circuits and a state control portion. The relay device may relay the data among a plurality of buses, each of which connecting one or more nodes. The plurality of communication circuits may perform transmission and reception of the data, and transition among a plurality of states including a transmission enabled state and a transmission disabled state. The plurality of communication circuits may be connected to the plurality of buses in one to one manner. The state control portion may cause a specific communication circuit to transition from the transmission enabled state to the transmission disabled state when a relay transition time has elapsed from an occurrence of predetermined event. The specific communication circuit may represent at least one of the plurality of communication circuits to which at least one of the plurality of buses connecting the specific node is connected.

Relay device

In a case that a gateway unit connected with multiple networks receives mode managing data indicating an operating mode from a first network, the gateway unit sends mode managing data formed based on the received mode managing data only to control units and a gateway unit connected with a second network excluding the first network. This prevents both the gateways units from repeatedly exchanging mode managing data indicating a normal operating mode. Each control unit thereby rapidly transfers to a low power consumption mode when being able to operate in the low power consumption mode.

Vehicular communications system

In an air conditioner with an inside/outside air unit and an air conditioning unit, an attachment stay having an elongated hole is provided in the inside/outside air unit, and a pin is provided in the air conditioning unit to be fitted into the elongated hole of the attachment stay so that an attachment position between both units are determined. A hook portion is provided in the pin at a top end to form a recess portion between the hook portion and a wall surface of the air conditioning unit, and a plate portion of the attachment stay, defining the elongated hole, is disposed to be engaged with the recess portion after the pin is inserted into the elongated hole.

Air conditioner having unit connection structure

In an air passage switching door, a packing material having a size approximately corresponding to a plate surface of a door base member is used, and the door base member is crossed with the packing material at a portion around a rotation shaft for rotating the door base member, so that both plate portions of the door base member are bonded to opposite surfaces of the packing material at different areas of the packing material. Accordingly, the air passage switching door can be manufactured using the single packing material.

Method for manufacturing an air passage switching door

In an air passage switching door, a packing material having a size approximately corresponding to a plate surface of a door base member is used, and the door base member is crossed with the packing material at a portion around a rotation shaft for rotating the door base member, so that both plate portions of the door base member are bonded to opposite surfaces of the packing material at different areas of the packing material. Accordingly, the air passage switching door can be manufactured using the single packing material in low cost, while having a reduced thickness.

Air passage switching door

In an expansion valve of a refrigerant cycle, only by covering a diaphragm case and a part of a body case using a single vibration-proof member made of a rubber material, vibration in the diaphragm case can be effectively restricted. Because it is unnecessary to cover all surface of the expansion valve, the dimension of the vibration-proof member can be greatly reduced, and pipe connecting/removing operation in the expansion valve can be readily performed. Accordingly, a material cost of the vibration-proof member can be reduced, while noise caused due to the vibration of the expansion valve can be effectively reduced.

Expansion valve with vibration-proof member

An inside/outside air switching box has first and second inside air introduction ports, and an outside air introduction port. An inside/outside air switching door is disposed to open and close the first inside air introduction port and the outside air introduction port, and the second inside air introduction port is opened and closed by an inside air auxiliary door operated due to a pressure difference generated by operation of a blower fan between an inner side of the inside/outside air switching box and an inner side of a passenger compartment. Accordingly, even in an outside air introduction mode, inside air can be introduced from the second inside air introduction port.

Growing community of inventors

Toyota, Japan

Mitsutoshi Kato