Electrically driven vehicle

摘要

Provided is an electrically driven vehicle that is capable of suppressing drive wheel slippage without increasing the pitching vibration of the vehicle. The electrically driven vehicle having electric motors (1, 4), drive wheels (3, 6) driven by the electric motors respectively, and, when at least one of the drive wheels slips, an electric motor control device (40) for reducing the torque of at least one of the electric motors that drives the at least one wheel slipped, and for restoring the torque of the at least one electric motor when the slippage is stopped includes a pitching detection device (26) for detecting the amplitude of pitching vibration to which the vehicle is subjected. The amount of torque of the at least one electric motor to be restored by the electric motor control device over a predetermined period of time after the slippage is stopped varies depending on whether or not the amplitude A detected by the pitching detection device is greater than an assessment value A1.

主权项

1. An electrically driven vehicle comprising:
electric motors; drive wheels driven by the electric motors respectively; electric motor control means that, when at least one of the drive wheels slips, reduces the torque of at least one of the electric motors that drives the at least one wheel slipped, and that restores the torque of the at least one electric motor when the slippage is stopped; and pitching detection means that detects the amplitude of pitching vibration to which the vehicle is subjected, wherein the amount of torque of the at least one electric motor to be restored by the electric motor control means over a predetermined period of time after the slippage is stopped varies depending on whether or not the amplitude detected by the pitching detection means is greater than an assessment value, wherein, when the amplitude detected by the pitching detection means is greater than the assessment value, the electric motor control means ensures that a torque restoration rate used for restoring the torque of the at least one electric motor is lower than when the amplitude is not greater than the assessment value.