Hitachi, Ltd.

Yuhi Tsutsumi

Atsushi Oda

Keiichi Katsuta

Kazuo Tokuyama

Masaki Tsuji

Keiji Maekawa

Kentaroh Maki

Takayoshi Nishino

Takenori Wajima

Masataka Yokota

A running pattern creation device includes: a coordinate system that is formed of a positional coordinate axis and a vehicle velocity axis; a stopping avoidance zone position holding unitconfigured to hold positional information on a stopping avoidance zone of a vehicle; a vehicle condition holding unitconfigured to hold at least information on respective accelerations at an acceleration time, a deceleration time and a coasting time with respect to specification of the vehicle; a braking pattern creation unitconfigured to create a braking pattern that is a pattern for stopping the vehicleat a position other than the stopping avoidance zone using the positional information and information on acceleration at the deceleration time; a coasting pattern creation unitconfigured to create a coasting pattern that is a pattern for stopping the vehicleat a position other than the stopping avoidance zone using the positional information and the information on acceleration at the coasting time; an object region decision unitconfigured to decide an object regionthat is a region surrounded by the positional coordinate, the braking pattern and the coasting pattern; and a scheduled running pattern creation unitconfigured to create a scheduled running pattern that is a running pattern avoiding the object regionand can be expressed by the coordinate system.

Running pattern creation device and driving control method that uses running pattern creation device

A train position estimation device which calculates the position of a vehicle traveling on a predetermined path and comprises a surroundings shape measurement unit that is installed in the vehicle and measures the shape of the surroundings of the current location of the vehicle and a map storage unit for storing surroundings shape data at positions measured in advance, the train position estimation device being characterized by comprising a start position estimation unit for storing the probability of presence of the vehicle at each position; a map retrieval section determination device for outputting surroundings shape data for each position in descending order of presence probability; and a matching processing device that compares the surroundings shape data for the current location with the retrieved surroundings shape data and outputs the position for which the difference therebetween is equal to or less than a predetermined threshold value.

Train position estimation device

The present invention is provided with: a sensing unit which is provided in a vehicle and measures the three-dimensional shape of an object; a matching unit for performing matching between multiple sets of structure information, in which are associated a data group indicating the three-dimensional shapes of structures provided beforehand near a path the vehicle will travel along and positional information indicating the posit ions of the structures, and a data group indicating the three-dimensional shape of the object measured by the sensing unit, and for specifying the position of the object; and an estimated position determination unit for determining, with the position specified by the matching unit as a reference position, the estimated position of the vehicle on the basis of the reference position.

Vehicle control system

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Tokyo, Japan

Yuhi Tsutsumi