LATERAL STABILITY CONTROL OF A DISTRIBUTED ELECTRIC
VEHICLE USING A NEW SLIDING MODE CONTROLER |
Yawei Chen 1,5, Qian Cheng 2, Huafu Gan 3, Xixiang Hao 4, Chenheng Yuan 1 |
1College of Traffic & Transportation, Chongqing Jiaotong University 2China Automotive Engineering Research Institute Co., Ltd. 3Liuzhou Railway Vocational Technical College 4Zhejiang Sanhua Automotive componets Co., Ltd. 5AIWAYS Automobile (Shanghai) Co., Ltd. |
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ABSTRACT |
Lateral instability is a key problem that restricts vehicle motion safety of distributed electric vehicles (DEV).
This paper designs a new lateral control system composed of subsystems of high, middle and low levels and brings forth an
improved sliding mode controller (SMC) method. The similar reference longitudinal velocity generation system is designed
via neural network observer and fuzzy logic controller to ensure the smooth and safe driving of the vehicle on low adhesion
roads. Relevant working simulation also is carried out to verify the effectiveness of the control method above. The results
show that the new control system based on the improved SMC method brings about good yaw rate and speed tracking
performance of vehicles and strong robustness of the control system, and can still ensure excellent lateral driving stability on
the low adhesion roads, or when making a turn or the friction coefficient is changed. |
Key Words:
Distributed electric vehicle, Lateral stability, New SMC, Fuzzy logic |
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