Patent ID: 8825246
Filing Date: 2014-09-02
Classification: B60L,B60W,B66F,H01M,Y02E,Y02T

Abstract:
1. An industrial vehicle including a vehicle body comprising: a battery mounted on the vehicle body; an electric motor driven by electric power from the battery to generate torque, the electric motor being a traction motor by which the industrial vehicle is driven to travel; an electrolyte level sensor detecting whether or not electrolyte level of the battery is lower than a predetermined level; a vehicle operating time with lowered electrolyte level being a time elapsing while the industrial vehicle is in a key-on state and the electrolyte level is lower than the predetermined level; a vehicle operating time calculator counting the vehicle operating time with lowered electrolyte level in accordance with the detection of the electrolyte level by the electrolyte level sensor; a data-storing device storing data of the vehicle operating time with lowered electrolyte level; an electric motor limiting condition for limiting operation of the electric motor gradually in accordance with the vehicle operating time with lowered electrolyte level; and a motor controller controlling operation of the electric motor based on the electric motor limiting condition.