Performance of In-Wheel Motor Suspension based on Inerter
- Resource Type
- Conference
- Authors
- Zhu, Xiulai; Chen, Michael Z. Q.
- Source
- 2023 International Conference on Service Robotics (ICoSR) ICOSR Service Robotics (ICoSR), 2023 International Conference on. :67-72 Jul, 2023
- Subject
- Computing and Processing
Vibrations
Degradation
Suspensions (mechanical systems)
Service robots
Stability criteria
Electric vehicles
Complexity theory
Inerter
passive suspensions
electric vehicle
in-wheel motor
- Language
The increased unsprung mass caused by the in-wheel motor deteriorates various performances of electric vehicles. Mechanical networks with inerter are introduced to improve the performances of two types of suspensions, one is the conventional suspension and the other is the suspension with a vibration absorber. The quarter in-wheel-motor electric vehicle models of two types of suspensions and the two performance indices are proposed. For conventional suspensions, suspensions with a class of low complexity mechanical networks with inerter are compared to the common passive suspensions. The research results show that all structures containing inerter can bring performance improvements compared with the common suspensions. The conditions for suspensions with inerter to be superior to the common ones are also given. For those with a vibration absorber, two suspensions with inerter are introduced and compared with conventional configurations. The results show that the introduction of inerter can effectively solve the performance degradation problem caused by the increased unsprung mass in both types of electric vehicle suspensions. It is seen that applying inerters to the network of suspension is better than applying it to the vibration absorber while both of them can improve the performance. It is also demonstrated that performance improvement has requirements for the motor mass when applying inerter to the vibration absorber.