US 12,570,346 B2 · Cart

Abstract

A cart includes: a body; wheels; a drive unit, driving each of the wheels; a handle, receiving a user's operation; an input detection sensor, detecting a load and/or moment applied to the handle; a rotation number sensor, detecting number of rotations of each of the wheels; and a control device, setting a target propulsive force to be output as a propulsive force from each of the wheels based on the load and/or moment, and controlling the drive unit to output the target propulsive force as the propulsive force. If the number of rotations of the wheel located on a side close to a turning center exceeds a predetermined threshold during turning, the control device sets the target propulsive force of the wheel located on a side away from the turning center to be less than the target propulsive force set based on the load and/or moment.

Claims13

Dependent claims

A cart, comprising:

a body;
a plurality of wheels, provided on the body;
a drive unit, driving each of the plurality of wheels;
a handle, provided on the body and receiving a user's operation;
an input detection sensor, detecting a load and/or a moment applied to the handle;
a rotation number sensor, detecting a number of rotations of each of the plurality of wheels;
and
a control device, setting a target propulsive force to be output as a propulsive force from each of the plurality of wheels based on the load and/or the moment, and controlling the drive unit to output the target propulsive force as the propulsive force, wherein
in response to the number of rotations of the wheel located on a side close to a turning center exceeding a predetermined threshold during turning, the control device sets at least the target propulsive force of the wheel located on a side away from the turning center to be less than the target propulsive force set based on the load and/or the moment.

6 more elements

Dependencies are inferred from the claim text.

Cart

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Cart

Life of this patent

Abstract

Claims13