An investigation into differential braking strategies for vehicle stability control

Yi, Kyongsu; Chung, Tae-Young; Kim, Jeontae; Yi, Sang Hoon

doi:10.1243/09544070360729428

Cited by 84 publications

(33 citation statements)

References 9 publications

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“…In our study, although the interaction has not been directly considered in the development of the control law, the loss of the lateral force due to the differential braking on front wheel can be compensated by the sliding condition represented by equation (15). The loss of the lateral force due to the differential braking on front wheel results in the reduction of the cornering stiffness of the tire in the linear tire model, i.e.…”

Section: Vehicle Stability Control (Vsc)mentioning

confidence: 94%

“…The sliding controllers have been designed based on a two degrees-of-freedom vehicle dynamic model, and the performance characteristics of several sliding surfaces for stability control have been investigated using planar vehicle dynamics and a nonlinear tire model [15,16]. Previous studies have indicated that both slip, angle and yaw rate should be combined in the control objective for stability control.…”

Section: Vehicle Stability Control (Vsc)mentioning

confidence: 99%

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Design of a rollover index-based vehicle stability control scheme

Yoon

Kim

2007

Vehicle System Dynamics

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108

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This paper presents a rollover index (RI)-based vehicle stability control (VSC) scheme. A rollover index, which indicates an impending rollover, is developed by a roll dynamics phase plane analysis. A model-based roll estimator is designed to estimate the roll angle and roll rate of the vehicle body with lateral acceleration, yaw rate, steering angle and vehicle velocity measurements. The rollover index is computed using an estimated roll angle, estimated roll rate, measured lateral acceleration and time-towheel lift. A differential braking control law is designed using a direct yaw control method. The VSC threshold is determined from the rollover index. The effectiveness of the RI, the performance of the estimator and the control scheme are investigated via simulations using a validated vehicle simulator. It is shown that the proposed RI can be a good measure of the danger of rollover and the proposed RI-based VSC scheme can reduce the risk of a rollover.

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Section: Vehicle Stability Control (Vsc)mentioning

confidence: 94%

Section: Vehicle Stability Control (Vsc)mentioning

confidence: 99%

Design of a rollover index-based vehicle stability control scheme

Yoon

Kim

2007

Vehicle System Dynamics

Self Cite

108

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“…Such methods apply linear vehicle models to find control laws, whereas the nonlinear characteristic of vehicle dynamics and tire forces is the most important issue in the controller design for DYC. Sliding control methods have been frequently applied in stability control because of their potential to cope with nonlinearities and intrinsic robustness [8,[10][11][12][13]. In other works, a fuzzy logic stability control [14] and a robust velocity-dependent control law [15] have been used for yaw moment control.…”

Section: Introductionmentioning

confidence: 99%

Optimal Nonlinear Control of Vehicle Braking Torques to Generate Practical Stabilizing Yaw Moments

Jafari¹,

Mirzaei²,

Mirzaeinejad³

2015

Int. J. Automot. Mech. Eng.

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In this paper, a new optimal strategy for differential braking is proposed to recover the vehicle stability in emergency maneuvers. Practical aspects of the problem are considered in the design of a control system with two layers. In the upper layer, an optimal nonlinear control law is analytically developed for calculating the external yaw moment and the distributed braking forces. The optimal property of the control law provides the possibility of reducing the control input to the lowest possible value to avoid undesirable effects. At the same time, considering the force capacity of each tire, a practical stabilizing yaw moment can be calculated by adjusting the weighting ratio as a free parameter of the control law. In the lower layer, a nonlinear wheel slip tracking controller is designed for the front wheels to generate the required braking forces of the upper layer. The simulation studies carried out by a nonlinear eight-degrees-of-freedom (8DOF) vehicle model indicate that the proposed control system can improve vehicular handling and stability with a practical external yaw moment and reduced differential braking forces.

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“…There is a gradual increase in the role of high-speed instability as a factor in all kinds of traffic accidents. Audi company statistics indicate that with traffic accidents involving vehicles at speeds of 80 km/h to 100 km/h, there was a loss of stability in 40 % of the cases [1]. When the vehicle speed exceeds 160 km/h, almost all accidents are related to vehicle instability.…”

Section: Introductionmentioning

confidence: 99%

A Robust Method of Vehicle Stability Accurate Measurement Using GPS and INS

Miao

Zhang

2015

Measurement Science Review

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With the development of the vehicle industry, controlling stability has become more and more important. Techniques of evaluating vehicle stability are in high demand. Integration of Global Positioning System (GPS) and Inertial Navigation System (INS) is a very practical method to get high-precision measurement data. Usually, the Kalman filter is used to fuse the data from GPS and INS. In this paper, a robust method is used to measure vehicle sideslip angle and yaw rate, which are two important parameters for vehicle stability. First, a four-wheel vehicle dynamic model is introduced, based on sideslip angle and yaw rate. Second, a double level Kalman filter is established to fuse the data from Global Positioning System and Inertial Navigation System. Then, this method is simulated on a sample vehicle, using Carsim software to test the sideslip angle and yaw rate. Finally, a real experiment is made to verify the advantage of this approach. The experimental results showed the merits of this method of measurement and estimation, and the approach can meet the design requirements of the vehicle stability controller.

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An investigation into differential braking strategies for vehicle stability control

Cited by 84 publications

References 9 publications

Design of a rollover index-based vehicle stability control scheme

Design of a rollover index-based vehicle stability control scheme

Optimal Nonlinear Control of Vehicle Braking Torques to Generate Practical Stabilizing Yaw Moments

A Robust Method of Vehicle Stability Accurate Measurement Using GPS and INS

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