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    • 110. 发明专利
    • Gradient information calculation device, vehicle cruise controller, and navigation system
    • 梯度信息计算装置,车辆巡航控制器和导航系统
    • JP2009236714A
    • 2009-10-15
    • JP2008083795
    • 2008-03-27
    • Toyota Motor Corpトヨタ自動車株式会社
    • SUGANUMA HIDEAKIKURAISHI MAMORU
    • G01C21/00G01C21/26G08G1/0969G08G1/13G09B29/00G09B29/10
    • B60W40/076B60G2400/824B60G2401/16B60G2600/0422B60G2800/019B60G2800/702B60W2550/141B60W2550/142
    • PROBLEM TO BE SOLVED: To provide a gradient information calculation device for acquiring a gradient value at high density, and to provide a navigation system, and a vehicle cruise controller.
      SOLUTION: The gradient information calculation device includes: a first operation means 14 for calculating a first gradient value B based on a moved movement distance and a planar distance projecting the movement distance on a horizontal face for a prescribed time by detecting three-dimensional location information by self-contained navigation; a road map information storing means 17 for storing road map information expressing a road by a location information known node and a link connecting the node; a second operation means 16 for calculating a second gradient value A from an elevation difference between nodes and link length by estimating the elevation of the node from previously measured elevation data; and a gradient data selection means for deciding whether any one of the first or second gradient value is employed to a gradient value of the link in response to the deviation by comparing the first gradient value with the gradient value.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种用于以高密度获取梯度值并提供导航系统的梯度信息计算装置和车辆巡航控制器。 梯度信息计算装置包括:第一操作装置14,用于基于移动的移动距离计算第一梯度值B,以及通过检测三维图像,在水平面上将移动距离投影到规定时间, 通过独立导航的三维位置信息; 用于存储由位置信息已知节点表示道路的路线图信息和连接节点的路线图信息存储装置17; 第二操作装置16,用于通过从先前测量的高程数据估计节点的高程,从节点和链路长度之间的高差计算第二梯度值A; 以及梯度数据选择装置,用于通过将所述第一梯度值与所述梯度值进行比较,来决定是否将所述第一或第二梯度值中的任何一个应用于响应于所述偏差的所述链路的梯度值。 版权所有(C)2010,JPO&INPIT