Patent ID: 9205746
Filing Date: 2015-12-08
Classification: B60L,B62B,Y02T

Abstract:
1. An electric assist cart that can travel by applying an assisting force in addition to a driving force applied by an operator, comprising: a body frame where a burden can be loaded; a drive wheel provided in the body frame; a handling portion pushed and handled by an operator to input a driving force to the body frame; a torque detection part that is configured to detect a driving torque applied to the body frame by pushing and handling the handling portion; a controller that is configured to compute an assisting force applied to the drive wheel based on the driving torque detected by the torque detection part; an electric motor that is configured to apply the assisting force computed by the controller to the drive wheel; a brake that is configured to brake 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.