| 摘要 |
<p>An electric vehicle includes an inverter unit (22). The inverter unit (22) includes a torque fluctuation estimator (37) configured to estimate, according to a predefined rule, a torque fluctuation that is inclusive of fluctuations in torque attributable to a wheel bearing unit (4), a motor unit (6) or a reducer unit (7), based on (i) a fluctuation in a rotational frequency as determined with a rotation sensor (24) configured to sense a rotational frequency of a wheel or with an angle sensor (36) for the motor unit (6), (ii) a fluctuation in a load acting, between a road surface and a tire, along a direction in which the vehicle travels, as determined with a load sensor (41), or (iii) a fluctuation in a motor current.</p> |
