Patent ID: 9206588
Filing Date: 2015-12-08
Classification: B60L,E02F,G01S,Y02T

Abstract:
1. A shovel provided with an electric swiveling apparatus comprising: a base; a swiveling body that is installed on the base in a swivelable manner; an electric motor for swiveling that swivels the swiveling body; an inverter that supplies electric power to the electric motor for swiveling; a control unit that transmits a control signal to the inverter to control the electric power which is supplied to the electric motor for swiveling; and an obstacle detector that detects obstacles around the base and transmits detected results to the control unit, wherein the control unit determines presence or absence of the obstacle within a monitoring region on the basis of a detected result from the obstacle detector, and when the obstacle is not present inside the monitoring region, the control signal transmitted to the inverter is on the basis of a second command value that is generated based on an operation amount by an operator, and when the obstacle is present inside the monitoring region, the control signal transmitted to the inverter is on the basis of a first command value based on a regulation velocity that is stored in advance and the control unit stops the electric motor for swiveling.