公开(公告)号：US06702049B2

公开(公告)日：2004-03-09

申请号：US10028762

申请日：2001-12-28

申请人： Larry M. Cheng

发明人： Larry M. Cheng

IPC分类号： B62D1500

CPC分类号： A61G5/042 ,  A61G5/045 ,  A61G5/1072 ,  A61G5/128 ,  B60K1/00 ,  B60Y2200/84 ,  Y10S180/907

摘要： The electrical wheelchair with spliced front wheel drive and rear wheel drive of the invention comprises a wheel frame and a chair. The wheel frame has a hollow column with a locating ring on its top and a plurality of locating chute on the ring rim. A semi-circular protrusion is placed on the surface of the locating ring. The wheel frame provides a power rod for controlling the moving direction of the wheelchair. There are two foldable footplates erected, one in the front side and the rear side and the footplate is folded when not in use. Beneath the chair, there is rotary shaft inserted in the hollow column. Along the side of the rotary shaft, there install two locating seats, a control stick passing through the holes of the locating seats. The control stick is operated to engage or disengage the locating ping from the locating chute. On the correspondent opposite position of the locating ring, there installs a micro switch. Releasing the control stick allows changing the direction of the chair along with the footplate. The semi-circular hump will activate the micro switch to change the moving direction of the power rod.

摘要翻译： 具有本发明的拼接前轮驱动和后轮驱动的电动轮椅包括轮架和椅子。 轮架具有中空柱，其顶部具有定位环，并且在环形边缘上具有多个定位滑槽。 在定位环的表面上放置一个半圆形突起。 轮架提供用于控制轮椅移动方向的动力杆。 有两个可折叠的脚踏板竖立，一个在前侧和后侧，底板在不使用时折叠。 椅子下方有旋转轴插入空心柱。 沿着旋转轴的一侧安装两个定位座，一个通过定位座的孔的控制棒。 控制杆被操作以将定位槽与定位滑槽接合或脱离。 在定位环的相对位置上，安装有微动开关。 释放控制杆允许改变椅子的方向与脚踏板。 半圆形突起将激活微动开关以改变动力杆的移动方向。

公开(公告)号：US06658335B2

公开(公告)日：2003-12-02

申请号：US10075407

申请日：2002-02-13

申请人： Julie A. Kleinau

发明人： Julie A. Kleinau

IPC分类号： B62D1500

CPC分类号： B62D5/0472 ,  B62D5/0463 ,  B62D5/0466

摘要： A method for generating a compensated torque command signal to be applied to an electric power steering motor is disclosed. In an exemplary embodiment, the method includes generating an assist torque command signal responsive to a measured vehicle speed and an input steering torque signal. An assist dependent damping torque signal is generated, the assist dependent damping torque signal responsive to the assist torque command signal, the measured vehicle speed and a compensated motor velocity output value of the electric power steering motor. The assist dependent damping torque signal is then subtracted from the assist torque command signal.

公开(公告)号：US06580987B2

公开(公告)日：2003-06-17

申请号：US09961239

申请日：2001-09-25

申请人： On Sadano ,  Hiroshi Kawazoe ,  Masayasu Shimakage

发明人： On Sadano ,  Hiroshi Kawazoe ,  Masayasu Shimakage

IPC分类号： B62D1500

CPC分类号： B62D15/025 ,  B60T2201/08 ,  B60T2201/087 ,  B62D5/0463 ,  B62D5/0478

摘要： A driver assistance system (10) assists the driver in controlling the direction of a moving vehicle along a contrived centerline between lane markings by regulating a steering bias applied to a steering system of the vehicle. An electric motor (22) coupled to the steering mechanism provides a torque input to the steering in response to an estimate of electric current provided by an observer. The observer has a friction term matrix element (a55), which is correlated with friction in the steering mechanism. A controller (24) is provided, which establishes a desired or ideal frequency function of lateral displacement data (102), samples lateral displacement to provide a real frequency function of lateral displacement data (104), compares the real frequency function with the ideal frequency function (106), and updates or leaves unaltered the friction term (a55) based on the result of comparison.