Patent ID: 8925661
Filing Date: 2015-01-06
Classification: B60K,B60L,Y02T,Y10S

Abstract:
1. An electric working vehicle comprising: a traveling drive electric motor provided to a vehicle body; a bidirectional converter that is provided to said vehicle body converts direct current power from a direct current power supply into alternating current power having a variable frequency to drive said electric motor and converts an alternating current power output from said electric motor into direct current power; a resistor that is provided to said vehicle body and connected to said bidirectional converter so as to consume electro motive force regenerated by said electric motor; a blower that supplies cooling air to said resistor; a controller that is connected to operate said bidirectional converter, said resistor, and said blower; and a mode selecting switch connected to said controller and configured to select any one mode from a heating mode for performing heat generation in said resistor, a blowing mode for blowing air to said resistor by using said blower, and a heating and blowing mode for simultaneously performing heat generation using said resistor and blowing air to said resistor using said blower, wherein said controller is configured to control operations of said bidirectional converter, said resistor, and said blower in accordance with an acceleration and a deceleration of said vehicle body when said vehicle body is traveling, and control operations of said resistor and said blower in accordance with a mode selected by said mode selecting switch when said vehicle body is at a stop.