| 摘要 |
PROBLEM TO BE SOLVED: To surely and effectively suppress rotational vibration of drive wheels by discriminating the main factor of rotational vibration of drive wheels and appropriately controlling vibration, depending on the main factor of rotational vibration. SOLUTION: Periodic variation component Vwdi of vehicle speed Vwi and periodic variation component Vddi of rotational speed Vdi are calculated (S40), and the main factor of rotational vibration of wheels is determined, based on these periodic variation components (S50, 60). When the main factor is an external force acting on the wheel from the road surface, vibration control rotational driving force Fwanti is calculated, based on the periodic variation component Vddi of the rotational speed Vdi (S120). When the main factor is the torsion of drive shafts 12FL-12RR, vibration control rotational driving force Fwanti is calculated, based on the periodic variation component Vwdi and the periodic variation component Vddi of the rotational speed Vdi (S110). Rotational vibration of wheels is suppressed by the vibration control rotational driving force Fwanti (S150, 200-230). COPYRIGHT: (C)2007,JPO&INPIT |
