Toshiyuki Aoki
Toshiyuki Aoki, Hitachi JP
Patent application number | Description | Published |
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20100324815 | POSITION DETECTION APPARATUS AND POSITION DETECTION PROGRAM - A position detection apparatus includes a storage unit for storing map information including road information; a detection unit for detecting information for calculating an absolute position of a moving object; a position calculation unit for calculating the absolute position of the moving object and an error variance relating to an error of the moving object from the detected information; a read-out unit for reading out from the storage unit the road information of a road relating to the calculated absolute position; an existence probability calculation unit for calculating an existence probability of the moving object existing on the road from the absolute position, the error variance, and the read-out road information; a selection unit for selecting a position whose existence probability is maximum out of the calculated existence probability; and a map-matching processing unit for making the selected position a position of the moving object on the road. | 12-23-2010 |
20120078572 | Road Surface Condition Estimating Device and Method - A road surface condition estimating device includes an undulation estimating portion for estimating undulations on the trajectory of a traveling vehicle from behavioral information about plural vehicles collected during travel of the vehicles, and a rut estimating portion for estimating undulations of ruts relative to the trajectories of the vehicles from the trajectories of traveling vehicles and from the behavioral information about the vehicles. The behavioral information includes information about positions, postures, and speeds of travel of the vehicles. Undulations on the trajectory of each traveling vehicle found by the undulation estimating portion and undulations of ruts relative to the trajectory of the traveling vehicle are superimposed for each vehicle to find road surface conditions, which are delivered to the vehicles. | 03-29-2012 |
20130261921 | DRIVING SUPPORT DEVICE - A driving support device includes a maximum measurement range determination unit adapted to calculate a distance to a plurality of points on a surface of an object present at surroundings of a vehicle. A distance sensor such as a laser range finder or a stereo camera that measures a distance is used in order to estimate bias of an acceleration sensor with high accuracy upon correction of the bias by use of the distance sensor such as the stereo camera or the LRF in a GPS non-receiving section. A sensor parameter estimation unit is adapted to estimate a parameter of the acceleration sensor based on a behavior of an own vehicle obtained from a vehicle translation and rotation angle calculation means adapted to count backwards the vehicle behavior based on distance variation and also based on a measurement value of the acceleration sensor. | 10-03-2013 |
Toshiyuki Aoki, Hitachi-Shi JP
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20110208496 | Position Estimation Device and Position Estimation Method - A position estimation device includes: a mathematical expression model processing unit that calculates a position of a mobile object, a condition quantity indicating a moving condition of the mobile object and an error in the condition quantity through filtering processing executed by using a probability model based upon an attitude information and a positioning information of the mobile object having been obtained from sensors and a specific mathematical expression model among a plurality of mathematical expression models expressing behavior of the mobile object; a threshold calculation unit that calculates a threshold candidate value for a threshold value to be used as a criterion when selecting the specific mathematical expression model, by using the error; a threshold value determining unit that determines the threshold value based upon the threshold candidate value; and a mathematical expression model selection unit that selects the specific mathematical expression model based upon the threshold value. | 08-25-2011 |
20110244881 | Location Estimation System - A location estimation system includes: a position measurement unit that receives position measurement signals from a plurality of sources of emission, and calculates position information of a first mobile object; a distance measurement unit that measures a distance from the first mobile object and to a second mobile object; a relationship determination unit that determines presence or absence of a relationship between the first mobile object and the second mobile object based upon relative position of the second mobile object based upon the distance, and selects position measurement signals from sources of emission that are different from the sources of emission of the position measurement signals received by the first mobile object; a position correction unit that corrects a position of the first mobile object based upon the position measurement signals received by the first mobile object and the position measurement signals selected by the relationship determination means. | 10-06-2011 |
20130311086 | Navigation Apparatus - A navigation apparatus includes: a map information storage unit that stores road information; a position estimation unit that estimates the position of the vehicle; a map matching unit that specifies link candidate points corresponding to the position of the vehicle; a parallel roads determination unit that detects links of parallel roads that extend mutually parallel to one another; a traveling link determination unit that, for each link of the parallel roads, determines whether it is a traveling link upon which the vehicle is traveling, or a parallel link that extends parallel to the traveling link; and a link position correction unit that obtains position correction amounts for nodes of the traveling link and of the parallel link on the basis of the distance between the link candidate point that corresponds to the traveling link and the position of the vehicle. | 11-21-2013 |
Toshiyuki Aoki, Kyoto-Shi JP
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20120021286 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode having a negative active material, and a non-aqueous electrolyte; characterized in that the negative active material contains composite particle (C), which has silicon-containing particle (A) and electronic conductive additive (B), and carbon material (D), wherein the weight of the electronic conductive additive (B) falls within the range of 0.5 wt. % to 60 wt. % to the weight of the composite particle (C). The negative active material contains silicon which is capable of performing high discharge capacity, so that a non-aqueous electrolyte secondary battery having a large discharge capacity can be obtained. In addition, since the negative active material contains the electronic conductive additive (B) and the carbon material (D), the contact conductivity between the silicon-containing particle (A) or between the negative active material improves and, as a result, a non-aqueous electrolyte secondary battery having satisfactory cycle performance can be attained. | 01-26-2012 |
20140093780 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode having a negative active material, and a non-aqueous electrolyte, characterized in that the negative active material contains composite particle (C), which has silicon-containing particle (A) and electronic conductive additive (B), the silicon-containing particle (A) has a content of carbon, and when measured at a temperature rising rate of 10±2° C./min by thermogravimetry, said composite particle (C) exhibits two stages of weight loss in the range of 30 to 1000° C. | 04-03-2014 |