Steering Stability Control for a Four Hub-Motor Independent-Drive Electric Vehicle with Varying Adhesion Coefficient

Hou, Rufei; Zhai, Li; Sun, Tianmin

doi:10.3390/en11092438

Cited by 11 publications

(4 citation statements)

References 30 publications

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“…Rufei Hou et. el., [5] have developed a hierarchical steering stability control strategy for a Four Hub-Motor Independent-Drive Electric Vehicle (4MIDEV) on a road with varying adhesion coefficient. Chentong Bian et.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Optimization Self-adaptive AI Controller for a Four-wheel Independent Drive Electric Rover

Jayetileke¹,

Mel²,

Ratnayake³

2021

Adv. Technol.

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In this paper, a dynamic optimization self-adaptive controller for a four-wheel independent drive electric rover has been investigated to enhance the dynamic stability. The proposed self-adaptive AI controller is based on dynamic Fuzzy Logic (FL) control mechanism. The dynamic self-adaptive properties have been integrated into the proposed FL controller through a dynamically tuned Particle Swarm Optimization (PSO) mechanism. Nevertheless, the dynamic FL controller and the dynamic PSO mechanism has been synchronized together for every sampling instance k to obtain the optimum performance of the electric rover. In this electric rover, all the four wheels have a fixed orientation and each wheel powered by a 250-Watt Brushless Direct Current (BLDC) motor through separate gear ratio mechanisms to obtain the desired torque and angular velocity. Therefore, the steering mechanism was achieved in this rover through the proposed AI controller, which was based on the differential speed mechanism. However, this paper presents the control methodology and obtained test results related to straight road tests under different slippery road conditions. The rover test results show that on different slippery road conditions the proposed PSO based FL controller has maintained the wheel slip ratio of all the four wheels which was less than 0.35 approximately. Here, the translational speed has been limited to 40 km/hr approximately within its recorded top speed of 90 km/hr while maintaining the desired fix orientation.

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Section: Introductionmentioning

confidence: 99%

Dynamic Optimization Self-adaptive AI Controller for a Four-wheel Independent Drive Electric Rover

Jayetileke¹,

Mel²,

Ratnayake³

2021

Adv. Technol.

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“…A four-wheel independent drive electric vehicle continuous steering stability control based on an energy-saving torque distribution algorithm is proposed, which improves energy efficiency [10]. A steering stability control of a four-wheel independent drive electric vehicle considering different adhesion coefficients is proposed [11].…”

Section: Introductionmentioning

confidence: 99%

Steering Stability Control for Four-Motor Distributed Drive High-Speed Tracked Vehicles

Zhai

Zhang

Wang³

et al. 2020

IEEE Access

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A steering stability control method for four-motor distributed drive high-speed tracked vehicle is proposed to improve handling stability and safety. The dynamic analysis and calculation of center steering, small radius steering and large radius steering for the four-motor distributed drive tracked vehicle are carried out respectively. In order to meet the power requirements of the outer drive motor in high-speed steering, a steering coupling system is constructed, which uses a steering motor to couple with the traction motor at the rear left or rear right side of the tracks respectively. The steering stability control strategy with the steering coupling takes the yaw angular velocity and longitudinal speed of the vehicle as the control objectives, and a direct yaw torque control strategy is proposed to optimize and distribute the torque of four traction motors in real time according to different steering conditions, and considers the synchronization of two traction motors on one side of the track, so as to improve the steering stability, safety, comfort and steering trajectory performance of the four-motor drive tracked vehicle. The simulation results of 0B, 0.2B, 2B and 8B steering radius show that the proposed control strategy with coupling system can ensure the steering stability for the four-motor distributed drive high-speed tracked vehicle. INDEX TERMS Four-motor drive, tracked vehicle, steering stability, power coupling.

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“…The promises and challenges facing in-wheel motors are addressed in [1], [2]. These embrace the effect of the additional unsprung mass in the wheels on vehicle dynamics, reliability, performance, dimensioning and integration with brakes, steering and wheels [3], [4]; as well as ride comfort and safety [5].…”

Section: Introductionmentioning

confidence: 99%

Modeling of Insulation Paper Damage in the Assembly of a Solid Slot Winding

Stefe¹,

Jenko

2020

IEEE Access

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Tight assembly of stator windings with no insulation paper damage is a manufacturing challenge. We evaluate different sets of parts according to the following parameters: magnet wire thickness, stator slot smoothness, length of the straight magnet wire after the slot end, and type and amount of insulation cap at the end of the slot. These parameters have discrete values with small differences between them. The damage criterion is the decrease of the insulation paper breakdown voltage after assembly/disassembly of parts, assembled in a small set of designed experiments. Parameter values, i.e., levels at individual experiments are set by an orthogonal experiment matrix. Repetition of each experiment provides statistical significance. Data analysis shows that the additive model alone is not sufficient due to the high correlation of the parameters' influences. We extend the model to include interparameter influences, which we model by adding a virtual parameter. The extended additive model generates parameter values that do not degrade the insulation paper breakdown voltage within the manufacturing process. These values are verified by repetitions of the control experiment. INDEX TERMS Analysis of variance, breakdown voltage, design for experiments, design for manufacture, dielectrics and electrical insulation, extended additive model, insulation paper damage, insulation testing, interparameter influence, in-wheel motor reliability, matrices, metal-insulator structures, orthogonal matrix experiments, permanent magnet motors, stators.

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Steering Stability Control for a Four Hub-Motor Independent-Drive Electric Vehicle with Varying Adhesion Coefficient

Cited by 11 publications

References 30 publications

Dynamic Optimization Self-adaptive AI Controller for a Four-wheel Independent Drive Electric Rover

Dynamic Optimization Self-adaptive AI Controller for a Four-wheel Independent Drive Electric Rover

Steering Stability Control for Four-Motor Distributed Drive High-Speed Tracked Vehicles

Modeling of Insulation Paper Damage in the Assembly of a Solid Slot Winding

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