Mitsubishi Denki Kabushiki Kaisha

Mitsubishi Electric Corporation

Other

Takeshi Nishiwaki

Takashi Maeda

Minoru Nishida

Keisuke Morita

Takayoshi Takehara

Shigekazu Okamura

Masuo Ito

Takatoshi Tosa

Ryosuke Nishimura

A conventional V2X communication system relays vehicle information received from vehicles, from a base station to all vehicles in an area. Accordingly, a problem arises in that unnecessary transmission to vehicles which do not require vehicle information occurs, resulting in increase in a traffic amount in communication. According to the present disclosure, only if it is determined, based on information that is held by a vehicle or a base station and that is about an area in which direct transmission or reception is difficult, that direct transmission of vehicle information to another vehicle or reception of vehicle information transmitted from the other vehicle is difficult, the vehicle information is transmitted to the other vehicle via the base station.

V2X vehicle-mounted device and V2X relay

A vehicle control device and a vehicle control method are configured: to perform passing vehicle determination to determine whether another vehicle is a passing vehicle, based on position data included in first communication data received from the other vehicle and also position data of an own-vehicle; to transmit second communication data including a result of the passing vehicle determination and the position data of the own-vehicle; and to perform oncoming vehicle determination to determine whether the other vehicle is an oncoming vehicle, based on the position data included in the second communication data received from the other vehicle and the position data of an own-vehicle.

Vehicle control device and vehicle control method

Using communication unit positional information acquired using infrastructure communication and moving body positional information detected using millimeter-wave radar, a moving body existing in a blind spot of a radar detection region is recognized, and behavior is predicted from movement information of the moving body, by deleting the moving body information detected by millimeter-wave radar from the communication unit information acquired using infrastructure communication.

Moving body recognition system

There is provided a communication apparatus and a communication system that reduces communication interference in inter-vehicle communication by considering the emergency degree of the environment around a vehicle and the accident incidence rate in each traveling scene and that raises the communication quality of high-emergency-degree data. The communication apparatus has a communication unit that has a power setting unit and performs inter-vehicle communication and a control unit that has a vehicle information acquisition unit for acquiring vehicle information and a reference vehicle position estimation unit for estimating the present position of a reference vehicle and controls the communication unit; when high-emergency-degree information of the reference vehicle is transmitted by use of vehicle information, the control unit controls the communication unit in such away that transmission is performed with increased transmission power.

Communication apparatus and communication system

The processing circuit of an inter-vehicle communication device includes a transmission output correction table in which a transmission power value or a corrected transmission power value in accordance with propagation characteristics of radio waves transmitted from an own vehicle is set to correspond to a region with coordinates having a direction of travel of the own vehicle as an axis. The processing circuit acquires a transmission power value or a corrected transmission power value corresponding to relative position coordinates of a peripheral vehicle from the transmission output correction table, and determines transmission power for when transmitting own vehicle travelling information to the peripheral vehicle. Because of this, communication with the peripheral vehicle positioned in a region in which radio wave propagation characteristics are sparse can be reliably established, and communication congestion can be avoided.

Inter-vehicle communication device

An on-vehicle information terminal that conducts communication with a road side communication device (base station) located on a road includes a transmitter/receiver section that communicates with the road side communication device, a voice output section that outputs data from the road side communication device which is received by the transmitter/receiver section through a voice or images, and a control section having a priority table that stores information on categories representative of the type of data that is added with the data and transmitted from the road side communication device and priorities for determining orders in which the voice output section outputs the data in association with each other. The priority of the priority table is variable, and is changed on the basis of a signal from a priority setting switch due to the operation of a user or an instruction signal from the road side communication device.

On-vehicle variable priority information terminal

To provide a sales supporting system capable of providing information on stores suitable for purchasers without troubling the purchasers. The sales supporting system includes: a store information transmitting unitfor transmitting store information including information on at least goods and prices that stores are dealing in, and positions of the stores; a unitfor guiding routes to destinations of purchasers; a unitfor listing stores that deal in goods for desired purchase according to inputs of the purchasers based on store the information transmitted by the store information transmitting unit; a unitfor calculating costs Cnecessary for movements to the destinations via the listed stores respectively; a unitfor calculating priority level judging parameters P from sums of the costs Cand prices of the goods to give priority to stores for purchase in order of smaller priority level judging parameters P; and a unitfor notifying the purchasers of store information based on the set priority.

Sales supporting system associated with navigation system and method thereof

An on-vehicle terminal apparatus for a DSRC system includes a mobile station mounted on a car, a radio tag mounted on the car separately from the mobile station, and a first communication device provided for communication with the mobile station and a base station installed on a road. Information transmitted to the base from the mobile contains car information which serves to determine operation of application for which the DSRC system is employed. Tag information recorded in the tag contains the car information. The mobile station includes a second communication device for communication with the tag. The car information transmitted to the base station is acquired from the radio tag through the second communication means.

On-vehicle terminal apparatus for dedicated short range communication system

Provided is a driving support apparatus that allows a driver to know the reliability of provided information by performing the switching of contents of voice information in accordance with a reliability indicator value concerning an obstacle detection result. The driving support apparatus includes: an obstacle detecting unit for detecting an obstacle around a vehicle; and an obstacle information providing unit for outputting, by voice, positional information of the obstacle detected by the obstacle detecting unit, wherein the obstacle detecting unit includes a function of calculating a reliability indicator value concerning a detection result, and the obstacle information providing unit includes obstacle information providing and a judging unit that judges switching of contents of voice information to be provided in accordance with magnitude of the reliability indicator value outputted from the obstacle detecting unit.

Reliable obstacle detecting driving support apparatus

An image sensor for detecting a positional relationship between a subject automotive vehicle and an automotive vehicle lane, a target steering quantity calculating process for obtaining a target steering quantity A required for the automotive vehicle to run along the automotive vehicle lane based on the positional relationship, a torque sensor for detecting a manual steering force with which a driver operates a steering handle, a target steering quantity changing process for outputting a target steering quantity B by changing the target steering quantity A based on the manual steering force thus detected, a steering angle sensor for detecting an actual steering quantity, and an automatic steering force calculating process for obtaining an automatic steering force required to make the target steering quantity B and the actual steering quantity coincident with each other are provided. Even during the automatic steering, steering can be carried out based on the driver's intention.

Automotive vehicle steering control device

A device for controlling the steering angle of a vehicle over a wide range maintaining improved control precision. The device controls the steering angle &thgr;d through a steering drive device,so as to come in agreement with a target angle &thgr;,. A steering angle detection device includes a first potentiometer,that produces a first angle detection value &thgr;,and a second potentiometer,that produces a second angle detection value &thgr;,. A target torque operation means,includes an angle operation unit,for operating the steering angle based on the first and second angle detection values, and the angle operation unit,produces the first angle detection value as the steering angle outside the second angular range, and produces the second angle detection value as the steering angle inside the second angular range.

Device for controlling the steering angle of a vehicle

A vehicular front monitoring apparatus which can reliably recognize a road configuration ahead of an own-vehicle through simpler computation. The apparatus comprises a distance measuring unit for radiating electromagnetic waves or the likes in plural directions, and detecting distances from an own-vehicle to a plurality of objects around the own-vehicle and lateral positions of the objects relative to a running direction of the own-vehicle, thereby measuring object positional data on coordinates defined by the running direction and a transverse direction of the own-vehicle; a road curvature estimating unit for estimating a curvature of a road ahead of the own-vehicle through Hough transform of the object positional data measured by the distance measuring unit; and a vehicle's own lane determining unit for determining whether other vehicles running ahead are in the same lane as the own-vehicle or not based on the curvature of the road estimated by the road curvature estimating unit.

Vehicular front monitoring apparatus

A device for detecting obstacles, for use in vehicles, capable of correctly detecting obstacles without driving up the cost. the device includes a signal processing device 3 for detecting an obstacle Z based on reception signals A, B from a plurality of sensor devices 1, 2, wherein the signal processing device includes detection region-setting devices 31, 32 for dividing the region around the vehicle into a plurality of detection regions, probability-of-presence operation devices 33, 34 for operating the in-the-region presence probabilities P, Q of obstacle, a probability distribution operation device 35 for operating the in-the-region presence probabilities for each of the detection regions, and an obstacle detection device 36 for judging the regions S where the obstacles exist based on the in-the-region presence probabilities R in the distribution of presence probabilities, wherein the obstacle detection device judges detection regions exhibiting the in-the-region presence probabilities that are larger than a predetermined threshold value to be the regions where the obstacles exist among the in-the-region presence probabilities in the detection regions in the distribution of presence probabilities.

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Tokyo, Japan

Takeshi Nishiwaki