Electrically driven moving vehicle

Patent metadata

Field	Value
Publication number	US-10906573-B2
Application number	US-201715796023-A
Country	US
Kind code	B2
Filing date	Oct 27, 2017
Priority date	Oct 28, 2016
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

An electrically driven moving vehicle includes a main body on which an article to be transported is loaded, and a handle provided on one side of the main body. A pair of force sensor units are provided in the handle. A force applied by a user is sensed by the pair of force sensor units to control the operation of electric motors. The user can operate the electrically driven moving vehicle while holding a position convenient for the user rather than a specific position of the handle. In addition, the user can conveniently operate the electrically driven moving vehicle with only one hand, without using both hands.

First claim

What is claimed is:

1. An electrically driven moving vehicle for moving an article, comprising:
a main body including a pair of driving wheels each arranged on a left side and a right side of the main body, and a pair of electric motors configured to drive the pair of driving wheels;
a handle secured to one side of the main body and having a longitudinal axis;
a left force sensor unit provided on a left side of the handle along said longitudinal axis, said left force sensor having a gripping surface configured to enable a user to grip said left force unit;
a right force sensor unit provided on a right side of the handle along said longitudinal axis, said right force sensor having a gripping surface configured to enable the user to grip said right force unit;
a connection part provided on the handle along said longitudinal axis, said connection part being connected to and movable relative to the left force sensor unit and the right force sensor unit, wherein a force applied to the connection part is transferred to the left force sensor unit and the right force sensor unit; and
a control unit configured to control driving of the pair of electric motors by taking into account a force applied on the left and right sensor units or the connection part, and sensed by, the left and right force sensor units.

2. The electrically driven moving vehicle of claim 1 , further comprising an elastic member provided in a portion in which the connection part and the left and right force sensor units are connected to each other,
wherein, when a user applies a predetermined force to the connection part, the connection part is movable within a predetermined range according to deformation of the elastic member.

3. The electrically driven moving vehicle of claim 1 , wherein the left and right force sensor units receive and sense a force applied by a user from the connection part, or sense a force directly applied to at least one of the left and right force sensor units by the user.

4. The electrically driven moving vehicle of claim 2 , wherein an opening is provided at each end of the connection part,
a protrusion is provided on one side of the left force sensor unit and the right force sensor unit, and
the protrusions are inserted into the openings of the connection part to form a connection structure with the connection part via the elastic member.

5. The electrically driven moving vehicle of claim 1 , wherein the control unit controls the driving of the electric motors so that magnitude of the force transmitted to the main body is amplified to drive the electrically driven moving vehicle while a driving direction of the electrically driven moving vehicle by the force applied to the handle by the user and transferred to the main body is maintained.

6. The electrically driven moving vehicle of claim 5 , wherein the control unit controls a current applied to a left electric motor driving a left driving wheel of the driving wheels by taking into account the force sensed by the left force sensor unit, and controls a current applied to a right electric motor driving a right driving wheel of the driving wheels by taking into account the force sensed by the right force sensor unit.

7. The electrically driven moving vehicle of claim 1 , wherein said connection part pivots about an axis that is transverse to said longitudinal axis.

Assignees

• Naver Labs Corp

Inventors

• Chung Jinwon
• Seok Sangok
• Kim Inhyeok
• Choi Dongil

Classifications

• B62B5/0073

  Measuring a force · CPC title

• B62B5/0043

  One motor drives one wheel · CPC title

• B62B5/0033

  Electric motors · CPC title

• B62B5/06 Primary

  Hand moving equipment, e.g. handle bars (for cycles B62K11/14, B62K21/12) · CPC title