TY  - JOUR
PY  - 2022//
TI  - Research on intervention criterion and stability coordinated control of AFS and DYC
JO  - International journal of vehicle design
A1  - Wu, Xiaojian
A1  - Zhou, Bing
A1  - Wu, Tingyang
A1  - Pan, Qianxi
SP  - 116
EP  - 141
VL  - 90
IS  - 1/2/3/4
N2  - To improve vehicle handling stability, an intervention criterion and a coordinated control method for active front steering (AFS) and direct yaw moment control (DYC) are proposed. First, the intervention criterion of AFS/DYC stability control based on the working state of lateral tyre force is proposed. Next, a 7-DOF (degree-of-freedom) dynamics model is established, and a method for identifying nonlinear pure lateral force model based on onboard sensors and vehicle handling stability experiment is developed. Then, the mapping relationship between lateral tyre force saturation point and wheel angle is constructed to rapidly judge the working state of lateral tire force. Subsequently, a UKF-based state observer, a hierarchical control algorithm and the yaw moment distribution coefficient are designed for the proposed AFS/DYC control system. Finally, a fishhook test and a step input test are carried out on low adhesion coefficient roads to verify the effectiveness of the proposed AFS/DYC coordinated control method.<p />  <p>Language: en</p>
LA  - en
SN  - 0143-3369
UR  - http://dx.doi.org/10.1504/IJVD.2022.129163
ID  - ref1
ER  -