| 摘要 |
PROBLEM TO BE SOLVED: To make compatible the suppression of the generation of tooth hammering noise and the suppression of spring upper-vibration.SOLUTION: A motor ECU determines whether or not a driver requirement drive force Fdrv falls into a tooth hammering noise generation region R in which the driver requirement drive force reaches a first threshold Fref1 or larger, and reaches a second threshold Fref2 or smaller (S11). When it is determined that the driver requirement drive force Fdrv falls into the tooth hammering noise generation region R, the motor ECU sets a vibration control drive force Fpbc at zero (S12), and transmits an attenuation force increase requirement signal Crequp indicating an increase requirement of an attenuation force of a shock absorber to an absorber ECU 70 (S13).SELECTED DRAWING: Figure 5 |
