A study of dynamics performance improvement by rear right and left independent drive system

• Published in: Vehicle system dynamics Vol. 48; no. 11; pp. 1285 - 1303
• Main Authors: Sugano, Takashi, Fukuba, Hitoshi, Suetomi, Takamasa
• Format: Journal Article
• Language: English
• Published: Taylor & Francis 01.11.2010
• Subjects: Acceleration; Control systems; direct yaw moment; Drivers; Driving; driving simulator; Dynamical systems; Dynamics; Electric motors; electrical vehicles; Simulation; Vehicles
• ISSN: 0042-3114; 1744-5159
• DOI: 10.1080/00423110903536411

In this study, methods of motion control on a rear right and left independent electric motor drive vehicle and the benefit for drivers when using this configuration were researched. The system offers direct yaw moment control (DYC) function and it is possible to compensate for the vehicle turning motion. On the other hand, a rear drive vehicle often becomes unstable at a situation of acceleration in a turn. Even if the DYC system controls the vehicle motion, there are performance limits. One of the cause considered is that the characteristics of rear tyres are changed by the driving force. Control methods that focused especially on this point were examined, and the performance of independent drive system was evaluated by a simulation. Moreover, the effects on driver were confirmed with a driving simulator. The effectiveness of the system was confirmed from these results.