Mitsubishi Electric Corporation

Katsuya Kawai

Masahiko Ikawa

Takashi Maeda

Yuji Hamada

Yoshiaki Adachi

Takashi Nakagawa

Tsutomu Matsubara

Takanori Matsunaga

Hideto Miyazaki

Yuji Igarashi

Yukio Goto

Yoshiaki Tsuda

Akinobu Sugiyama

Toyoaki Kitano

Masahiko Tanimoto

Yoshihisa Yamaguchi

Kazushi Shirasawa

Yoshito Nishita

A position estimation apparatus () acquires target information () regarding the position of a target body () and acquires neighboring information () regarding the position of a neighboring body, which is a movable body different from the target body (), from the neighboring body. The position estimation apparatus () determines, as a primary area (), a relative area in which the neighboring body is estimated to be present from the target information () and the neighboring information (). The position estimation apparatus () calculates a probability of presence () of the neighboring body in each relative area from a plurality of the primary areas () determined within a reference period and determines, as a secondary area (), a relative area in which the neighboring body is estimated to be present on the basis of the probability of presence ().

Position estimation apparatus, position estimation method, and computer readable medium

A plurality of items of environmental information, which are used for distribution control of plural items of vehicle information that are received using wireless communication by an external communication device from a plurality of surrounding vehicles, are made into an environmental information list by an environmental information setting mechanism and managed. Based on the environmental information list, for the plural items of vehicle information received by the external equipment communication device, selection is performed using a dynamic filtering part of a dynamic distribution controller and distribution control is performed using the priority level according to a dynamic priority controller. A driving assistance device that receives this information assists a driver in driving, and environmental information set in the environmental information list is generated.

Driving assistance device

An object of the present invention is to provide a roadside communication apparatus and an in-vehicle communication apparatus capable of reducing an increase in a traffic amount in a roadside-to-vehicle communication. A roadside communication apparatus according to the present invention includes: an inter-vehicle transmission-and-reception service processing unit transmitting and receiving a roadside-to-vehicle message and an inter-vehicle message; a communication transfer unit providing a transaction service and a transfer service; a roadside-to-vehicle application processing unit; an inter-vehicle application processing unit; a transmission-and-reception condition management unit managing a transmission-and-reception condition of an inter-vehicle message which the inter-vehicle application processing unit transmits to and receives from the communication device; and a roadside communication management unit managing a connection state with the communication device, wherein the roadside communication management unit manages a connection state with the communication device based on a reception condition of the inter-vehicle message notified by the transmission-and-reception condition management unit.

Roadside communication apparatus and in-vehicle communication apparatus

A vehicle power management device managing: a vehicle path information generation device generating a vehicle travel path; a drive assembly consuming power to drive the vehicle; a power generator; an electrical load device group; a high-voltage storage device storing power for driving the vehicle; a low-voltage storage device storing power for operating the electrical load device group; and a DC voltage conversion and output device converting voltage of power stored in the high-voltage storage device to generate DC voltage for operating the electrical load device group, and outputting the DC voltage, and controlling electric energy flow in the vehicle. The vehicle power management device controls output of the DC voltage conversion and output device so that a filling rate of the low-voltage storage device is between lower and upper limits of a range in which a charge and discharge speed is equal to or higher than a predetermined value.

Vehicle power management device

A navigation device includes a map databasethat holds map data; a location and direction measurement unitthat measures the current location and direction of a vehicle; a route calculation unitthat, based on map data read from the map databasecalculates a route from the current location measured by the location and direction measurement unit to a destination; a camerathat captures video images ahead of the vehicle; a video image acquisition unitthat acquires the video images ahead of the vehicle captured by the camera; a road width acquisition unitthat, based on road width data included in the map data read from the map database, calculates the width of a road segment that enters last into an intersection to which the vehicle is to be guided from among road segments that make up the route calculated by the route calculation unit; a video image composition processing unitthat limits the length of a portion that indicates a turning direction of a route guide arrow to the road width calculated by the road width acquisition unit, and that composes the arrow onto the video images acquired by the video image acquisition unit in a superimposing manner; and a display unitthat displays the video image composed by the video image composition processing unit.

Navigation device

Growing community of inventors

Tokyo, Japan

Katsuya Kawai