| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a self-diagnosis device for an electric working vehicle which can diagnose a failure in an electric system and a hydraulic system by a simple configuration. <P>SOLUTION: The self-diagnosis device 300 for the electric working vehicle includes: hydraulic actuators C1-C6 for driving a working device 1; a pump 120 for generating hydraulic pressure for operating an actuator; and an electric motor 210 for driving the pump. The self-diagnosis device is adapted to determine the failure by comparing a product of the ejection pressure of the pump and a rotational speed with electric energy supplied to the electric motor. <P>COPYRIGHT: (C)2013,JPO&INPIT |
