Abstract
Keywords - Automotive Active Suspension, Motor Actuator, Energy Regeneration, Modeling, Experiments
Significant improvements in automotive suspension performance are achieved by active suspension. An energy-regenerative electrical suspension is proposed. Permanent-magnet direct-current motors are utilized as the active actuators in automotive suspension. The significant characteristic of the suspension is that vibration energy from the road excitation can be regenerated and transformed into electric energy while good suspension performance can be maintained. The modeling of electrical suspension system has been completed and simulated in Matlab. The motor actuator working as a generator is proved to maintain the performance of vibration control and energy-regeneration. The prototype of motor actuator is designed and produced. The vibration absorption and regeneration performances are verified by the full-vehicle experiments. The realization of effective energy-regeneration is expected in the future for the aim of saving-energy in automotive field.