CART
    1.
    发明公开
    CART 审中-公开

    公开(公告)号:US20230311966A1

    公开(公告)日:2023-10-05

    申请号:US18184676

    申请日:2023-03-16

    IPC分类号: B62B5/00 B60L15/20

    摘要: 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.

    POWER ASSIST WAGON
    6.
    发明申请

    公开(公告)号:US20170088157A1

    公开(公告)日:2017-03-30

    申请号:US15278751

    申请日:2016-09-28

    申请人: RADIO FLYER INC.

    IPC分类号: B62B5/00 B62B3/00

    摘要: A power assist system for a wagon is provided. The power assist system provides a rotational force to one or more drive wheels under certain conditions to provide propulsion for the wagon. The power assist wagon preferably includes a drive system for providing the rotational force to the drive wheel, a control system for determining when the drive system should be activated and how much propulsion assist to provide to the drive wheel, and a power system for providing power to the drive system. The power assist wagon may also have a safety cut-off system to preclude the drive system from providing a rotational force to the drive wheel 16 even when the system is in the “on” mode.

    ELECTRIC ASSIST CART
    9.
    发明申请
    ELECTRIC ASSIST CART 有权
    电动助理车

    公开(公告)号:US20140246261A1

    公开(公告)日:2014-09-04

    申请号:US14349779

    申请日:2012-10-03

    IPC分类号: B60L3/00

    摘要: An electric assist cart includes: a drive wheel provided in a body frame; a control handle used by an operator to input a driving force to the body frame; a torque sensor that detects a driving torque applied to the body frame from the control handle; a controller that computes an assisting force applied to the drive wheel based on the driving torque; an electric motor that applies the assisting force to the drive wheel; a brake that brakes the drive wheel and switches from a braking state to an unbraking state when a predetermined electric current flows; and a brake release switch manipulated by an operator to allow the controller to instruct the predetermined electric current to flow to the brake, wherein the controller maintains the braking state of the brake even when the brake release switch is manipulated without turning on power, and power is then turned on.

    摘要翻译: 电动助推车包括:设置在车身框架中的驱动轮; 操作者使用的控制柄,用于向车体框架输入驱动力; 扭矩传感器,其从所述控制手柄检测施加到所述车身框架的驱动转矩; 控制器,其基于所述驱动扭矩计算施加到所述驱动轮的辅助力; 将辅助力施加到驱动轮的电动机; 制动器,当预定电流流动时制动驱动轮并从制动状态切换到未制动状态; 以及由操作者操纵以允许控制器指示预定电流流向制动器的制动器释放开关,其中即使在不接通电力的情况下操纵制动器释放开关,控制器也保持制动器的制动状态,并且功率 然后打开