Vibration Control Method for an Electric City Bus Driven by a Dual Motor Coaxial Series Drive System Based on Model Predictive Control

Development of a model predictive controller for an active torsional vibration damper to suppress torsional vibrations in vehicle powertrains

“…The MPCs have been implemented in automotive applications such as a torque control strategy to suppress the vibrations in an electric bus powertrain. 1 In literature, different control strategies have been proposed for two-mass type torsional vibration isolators such as an adaptive notch filter for a servo drive system to reduce mechanical resonance, 2 an adaptive control approach to suppress torsional vibrations and reject torque disturbance effects, 3 an adaptive neuro-fuzzy scheme, 4 and adaptive fuzzy PID controller applications. 5 Experimental investigation of an explicit MPC and its comparison with a classical PID control strategy is demonstrated in Cychowski and Szabat 6 which emphasizes satisfactory transient speed characteristics even in the presence of significant parameter uncertainty.…”

“…The stiffness of a cantilever beam varies by changing the application point of the force F. As shown in Figure 5 that different stiffness values which are preferred in pre-damper and main-damper mechanisms can be achieved in the ATVD leaf springs. If the force F is applied to an arbitrary point on the cantilever leaf spring as shown in Figure 4, the stiffness can be calculated by equation (1).…”

A Novel Dual-Motor Two-Speed Direct Drive Battery Electric Vehicle Drivetrain

“…According to the signal 'Shift', an output signal of shifting logic block, the shift control block will be enabled to determine whether output torque follows the dynamic varying signals 'T1_Syn' and 'T2_Syn' during shifting, or the regular motor torque 'T1_Req' and 'T2_Req'. 'T1_Syn' and 'T2_Syn' are the shifting reference torque according to (17) and (18). The energy and efficiency performance of proposed powertrain will be calculated in orange 'Eff & Energy Calculating' block and stored by grey 'Data Recording' block respectively.…”

“…The switching of driving modes between single motor drive and combined motor drive in terms of speed and torque depends on a planetary gear unit, a fixed gear unit, two clutches and one synchronizer, which makes the structure complicated. Another dual-motor coupled powertrain was applied in battery electric bus with Dynamic Programming (DP) method by Wang et al to save the cost of motor, at the same time, boost energy efficiency [17] and reduce the impact of motor torque mutation on transmission system [18]. However, the coaxial dual-motor powertrain structure can only provide a 'add-on' torque, rather than selecting propelling motor for efficiency.…”

Novel Sliding Mode Vibration Controller With Simple Model-Free Design and Compensation for Actuator’s Uncertainty

“…Active vibration control, which can obtain high vibration suppression performance, is widely studied [1] [2]. Many theories and control techniques have been applied to complex vibration problems, including classical control theory such as PID control, modern control theory such as linear quadratic regulators, as well as adaptive control and model predictive control [3] [4].…”