Motorized wheelchair and control method thereof
AssigneeLG Electronics Inc.
InventorsHaemin Choi, Wondong Do, Daekeun Yoon, Jaebeom Im
Life of this patent
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Abstract
A method of controlling a motorized wheelchair including a seat frame supporting a seat, a back frame to which the seat frame is detachably connected, a first main wheel and a second main wheel respectively installed at both lower ends of the back frame, an inclination detecting sensor which detects an inclination, and a controller which controls the main wheel and the second main wheel, includes receiving an input for a turning operation, calculating an inclination angle of a running ground by the inclination detecting sensor, and determining whether the inclination angle is greater than a reference angle.
Claims6
A method of controlling a motorized wheelchair having two rear wheels, the method comprising:
- determining an inclination angle of a surface on which the motorized wheel chair is travelling;
- when the inclination angle is less than a reference angle, performing a first turning operation associated with a rotational center located at a midpoint between the two rear wheels;
- and
- when the inclination angle is greater than or equal to the reference angle, performing a second turning operation having a turning radius that is greater than a turning radius of the first turning operation,
- wherein the rear wheels include a first rear wheel and a second rear wheel, and performing the second turning operation includes performing:
- a first turn having a rotational center that is located at one of the first or second rear wheels, and
- a second turn having a rotational center that is located outside of a region between the first rear wheel and the second rear wheel, the second turn having a turning radius that is greater than a turning radius of the first turn,
- wherein the reference angle includes a first reference angle and a second reference angle that is greater than the first reference angle,
- wherein the first turning operation is performed when the inclination angle is less than the first reference angle,
- wherein the first turn is performed when the inclination angle is greater than or equal to the first reference angle and less than the second reference angle, and
- wherein the second turn is performed when the inclination angle is greater than or equal to the second reference angle.
Dependencies are inferred from the claim text.