Vehicle Stability Control with Regenerative Braking and Electronic Brake Force Distribution for a Four-Wheel Drive Hybrid Electric Vehicle

Kim, D.; Kim, Hyunsoo

doi:10.1243/09544070d00605

Cited by 41 publications

(15 citation statements)

References 7 publications

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“…The kinetic equations can be expressed as follows [24]: β are the derivatives of the yaw rate γ and the sideslip angle β, respectively, δ f is the front wheel steering angle, a and b respectively denote the distance between the center of gravity and the front axle and rear axle, F y f and F yr denote the lateral tire force of the front and rear wheels, which can be simplified to be proportional to the slip angle:…”

Section: Reference Model Levelmentioning

confidence: 99%

Continuous Steering Stability Control Based on an Energy-Saving Torque Distribution Algorithm for a Four in-Wheel-Motor Independent-Drive Electric Vehicle

Zhai

Hou

Sun³

et al. 2018

Energies

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Abstract:In this paper, a continuous steering stability controller based on an energy-saving torque distribution algorithm is proposed for a four in-wheel-motor independent-drive electric vehicle (4MIDEV) to improve the energy consumption efficiency while maintaining the stability in steering maneuvers. The controller is designed as a hierarchical structure, including the reference model level, the upper-level controller, and the lower-level controller. The upper-level controller adopts the direct yaw moment control (DYC), which is designed to work continuously during the steering maneuver to better ensure steering stability in extreme situations, rather than working only after the vehicle is judged to be unstable. An adaptive two-hierarchy energy-saving torque distribution algorithm is developed in the lower-level controller with the friction ellipse constraint as a basis for judging whether the algorithm needs to be switched, so as to achieve a more stable and energy-efficient steering operation. The proposed stability controller was validated in a co-simulation of CarSim and Matlab/Simulink. The simulation results under different steering maneuvers indicate that the proposed controller, compared with the conventional servo controller and the ordinary continuous controller, can reduce energy consumption up to 23.68% and improve the vehicle steering stability.

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Section: Reference Model Levelmentioning

confidence: 99%

Continuous Steering Stability Control Based on an Energy-Saving Torque Distribution Algorithm for a Four in-Wheel-Motor Independent-Drive Electric Vehicle

Zhai

Hou

Sun³

et al. 2018

Energies

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“…HEV can improve fuel economy and reduce emissions significantly by regenerative braking [1,2]. HEV equipped with CVT can further improve the vehicle energy recovery rate because a proper CVT ratio control strategy enables the regenerative braking system to operate in a more efficient region [3].…”

Section: Introductionmentioning

confidence: 99%

Regenerative Braking Compensatory Control Strategy Considering CVT Power Loss for Hybrid Electric Vehicles

Yang

Zhang

et al. 2018

Energies

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Hybrid electric vehicles (HEV) equipped with continuously variable transmission (CVT) adjust the motor operating point continuously to achieve the optimal motor operating efficiency during regenerative braking. Traditional control strategies consider the CVT efficiency as constant, while the CVT efficiency varies in different operating conditions. In order to reflect the transmission efficiency more accurately during regenerative braking, the CVT theoretical torque loss model is firstly established which then leads to the battery-front motor-CVT joint operating efficiency model. The joint operating efficiency model indicates that the system efficiency is influenced by input speed, input torque, CVT speed ratio, and battery SOC (state of charge). The compensatory strategy for the front motor barking force is proposed to make full use of its braking power and the CVT speed ratio control strategy is modified to maintain the optimal operating efficiency of the system. The simulations are performed under three typical braking conditions and UDDS, NYCC, US06 respectively, the results show that the modified control strategy increases the front motor braking power and improves the system operating efficiency.

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“…Specifically, ABS is developed to keep the stability-related quantity, wheel slip, in a "safe region" by controlling the braking torque applied on each wheel (Anwar 2006, Hoseinnezhad & Bab-Hadiashar 2011, Shi et al 2010, Zhang et al 2010). On the other hand, ESP is designed to help vehicles track the nominal yaw rate as well as the nominal vehicle side-slip angle by applying differential braking torques to the left and right wheels, in such a way that the vehicle is prevented from spinning and drifting out (Kim & Kim 2006, Pi et al 2011, Rajamani 2012.…”

Section: Introductionmentioning

confidence: 99%

Electric vehicle side-slip control via electronic differential

Hoseinnezhad

Bab–Hadiashar

et al. 2015

IJVAS

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An electronic differential for high-performance electric vehicles with independent driving motors is proposed in this paper. This electronic differential endows the electric vehicle with a close-to-zero vehicle side-slip angle. When vehicle side-slip vanishes, the heading direction of the vehicle coincides with the velocity direction of the mass centre. In addition to the side-slip angle, the yaw rate is driven towards an optimal value with the proposed electronic differential on-board. The improvements in vehicle side-slip and yaw rate responses are of great significance to the handling performance of high-performance vehicles. In this paper, the mathematical relationships between the vehicle dynamic states and the independent motor torques are revealed, based on which the proposed electronic differential controller is designed. Simulation results manifest that in various challenging steering scenarios, the proposed control method outperforms two common electronic differential control schemes in terms of vehicle side-slip and yaw rate responses.

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Vehicle Stability Control with Regenerative Braking and Electronic Brake Force Distribution for a Four-Wheel Drive Hybrid Electric Vehicle

Cited by 41 publications

References 7 publications

Continuous Steering Stability Control Based on an Energy-Saving Torque Distribution Algorithm for a Four in-Wheel-Motor Independent-Drive Electric Vehicle

Continuous Steering Stability Control Based on an Energy-Saving Torque Distribution Algorithm for a Four in-Wheel-Motor Independent-Drive Electric Vehicle

Regenerative Braking Compensatory Control Strategy Considering CVT Power Loss for Hybrid Electric Vehicles

Electric vehicle side-slip control via electronic differential

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