Electromechanical Suspension for Combat Vehicles

Beno, J.H.; Hoogterp, Francis B.; Bresie, D. A.; Ingram, Steve; Weeks, D.A.; Weldon, W.F.

doi:10.4271/950775

Cited by 15 publications

(8 citation statements)

References 18 publications

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“…Therefore, the equivalent moment of inertia of the actuator can be regarded as an equivalent mass. Together with the consideration of the extra force, the definitions can be given as equations ( 7) and (8). The equivalent mass of the actuator is related to the equivalent moment of inertia of the actuator.…”

Section: Structure Non-linearity and Dynamic Equationsmentioning

confidence: 99%

“…[3][4][5][6][7] Hayes et al and Zhang et al proposed new types of EAASs based on rack and pinion with rotary electromagnetic motors. [8][9][10] Huang et al developed an electromagnetic actuator with a tubular brushless DC rotary motor and a ball screw. 11 Gupta et al and Yin et al developed new types of EAASs with a permanent magnet synchronous motor (PMSM) and gearbox.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Robust H∞ control design of an electromagnetic actuated active suspension considering the structure non-linearity

Chen

Yin

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part D:

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Electromagnetic actuated active suspension (EAAS) benefits energy harvesting while providing active control. However, the inertia of the actuator introduces an equivalent mass coupled with the sprung and unsprung mass. In addition, the specific structure of the suspension features structure non-linearity, which results in the perturbation of the equivalent mass of the actuator, the variation of the transmission ratio of the actuator output torque to the actuator force at the wheel side and an extra force to be compensated with. A dynamic model of active control considering the equivalent mass and the structure non-linearity is proposed. Based on a gearbox type EAAS, respective non-linearity is studied. For multi-objective optimization, a robust controller is designed with proper weighting functions. A virtual prototype of the EAAS is built and simulated with a bump/pothole and random excitation road profiles. Results show that neglecting the structure non-linearity effects influences the accuracy of active control. The investigation of this paper provides a fundamental methodology for the control design of actual applications of EAASs.

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Section: Structure Non-linearity and Dynamic Equationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Robust H∞ control design of an electromagnetic actuated active suspension considering the structure non-linearity

Chen

Yin

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part D:

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show abstract

“…Karnopp (1989) proposed the use of permanent magnet linear motors as variable mechanical dampers for vehicle suspensions. Beno et al (1995) developed an electromagnetic active suspension regenerating energy for combat vehicles, which used a rotary direct current motor as the suspension actuator. A rack and pinion mechanism was employed to convert the linear motion of the suspension into the rotary motion of the direct current motor.…”

Section: Introductionmentioning

confidence: 99%

Development of a control method for an electromagnetic semi-active suspension reclaiming energy with varying charge voltage in steps

Chen

Zhao

et al. 2015

Int.J Automot. Technol.

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A system of electromagnetic semi-active suspension reclaiming energy (ESASRE), with an novel control varying charge voltage in steps (CVCVIS) based optimal integrated controller, is newly proposed to improve ride comfort and energy reclaiming. The proposed CVCVIS is built by changing the number of battery packs. The dynamic model of the semiactive suspension reclaiming energy is established first, which fully accounts for the non-linear characteristics of the damping actuator reclaiming energy (DARE). The parameters of DARE are decided by a compromise between ride comfort and manufacturing cost, with consideration of installation convenience. A integrated control system for ESASRE includes a controller for calculating the real-time ideal control force based on optimal linear quadratic Gaussian (LQG) control and the other for calculating the number of charging batteries to obtain the real-time actual control force using the proposed quasilinear relation function. Performance comparisons are implemented using three suspension types: ESASRE, the passive suspension, and the ideal active suspension. The performance index of ESASRE is 19.8% lower than that of the passive suspension, and 3.82% higher than that of the active suspension. With ESASRE, the power flowing into the battery pack accounts for 77.72% of the total vibration energy absorbed by DARE.

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“…[1][2][3][4] An active suspension can change the force between the chassis and road continuously for adapting the vehicle to diverse off-road conditions. 5 Beno et al 6 developed an active suspension system based on a proportional-derivative-differential (PID) control that uses an electromagnetic actuator to replace the rotary damper and a torsion spring suspension for a heavy off-road tracked vehicle. The control torque is decided as a function of the road wheel acceleration, road arm angle, and road arm angle velocity.…”

Section: Introductionmentioning

confidence: 99%

A new coordinated control strategy for tracked vehicle ride comfort

Khajepour

Huang

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part K:

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To improve tracked vehicle ride comfort and minimize weapon's vibration, a coordinated control strategy is developed for tracked vehicles' semi-active suspension systems. A model with eight degrees-of-freedom for a tracked vehicle equipped with magnetorheological dampers is established, and is followed by the formulation of a sliding mode controller. The proposed control algorithm is a localized-based controller that can change its target location in the tracked vehicle to where it is needed most. A co-simulation system model including a six-wheel tracked vehicle multi-body dynamics model, coordinated control strategy, and magnetorheological damper force allocator is developed to analyze the ride performance under bump and random road excitations. The simulation results demonstrate that the proposed strategy is very effective in improving the vehicle's ride performance and is much better than the traditional skyhook controllers. The innovation of this paper can be concluded as the coordinated control strategy can simultaneously improve vertical acceleration and pitch acceleration for the hull, which is of great importance for combat situations.

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Electromechanical Suspension for Combat Vehicles

Cited by 15 publications

References 18 publications

Robust H∞ control design of an electromagnetic actuated active suspension considering the structure non-linearity

Robust H∞ control design of an electromagnetic actuated active suspension considering the structure non-linearity

Development of a control method for an electromagnetic semi-active suspension reclaiming energy with varying charge voltage in steps

A new coordinated control strategy for tracked vehicle ride comfort

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