Development of Active-Traction Control System

This paper presents the conceptual design of the traction control system of a high performance electric vehicle with four driven wheels, intended to be used in quarter mile competitions. Different models of the longitudinal and vertical vehicle’s dynamics are presented, in order to consider the coupling dynamics of front and rear wheels. Two slip control strategies are proposed so as to maximize the traction forces of the wheels. The first one consists of a traditional control scheme applied to each wheel of the vehicle. Since the interaction between the tire and the road is often poorly known, the second controller proposed consists of a perturbation based extremum seeking control (PBESC), in order to maximize the traction force without knowledge of the road and the tire characteristics. Finally an auto tuning process based on low discrepancy sequences for both control systems is presented.

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Incorporation of a Secondary Wheel Assembly using Novel Zigbee based Traction Control System for Vehicle Stability during Tire Blow-Outs

International Journal of Vehicle Structures and Systems ◽

10.4273/ijvss.10.6.06 ◽

2018 ◽

Vol 10 (6) ◽

Author(s):

M. Thirunavukkarasu ◽

V. Lakshminarayanan

Keyword(s):

Control System ◽

Real Time ◽

Time Pressure ◽

Steering Wheel ◽

Proper Solution ◽

Market Demand ◽

Traction Control ◽

The Real ◽

Traction Control System ◽

Custom Made

Tire blow-outs or puncture during the operation of the vehicle is one of the major root causes of road accidents. The drivers lose his/her control of the steering wheel when the tire get punctured or busted leading towards loss of stability of the vehicle causing adverse effects to the vehicle and the passenger. Due to the rapid change in the pressure range within the tyres, the rim of the wheels come in contact with the road surface causing loss of traction and stability of the vehicle leading to accidents. Despite, the rapid advancements witnessed in the field of automobile industry stating from autonomous vehicles to electronic stability unit, a proper solution addressing the issue of accidents caused due to tire blow-outs remains unanswered. In this proposed study, automatic activation of an additional secondary wheel/roller assembly mounted to the chassis using a custom made Zigbee based smart traction system in order to address the traction and stability issues based on the real-time pressure of the tyre is presented. The real-time pressure of the wheels is monitored by the control system which then decides on scheduling the activation of the secondary wheel/roller assembly using a battery operated pneumatic system which will prevent the vehicle from losing its stability. The proposed traction control system consisting of the secondary roller assembly could also be considered as a lifesaving add-on to the passenger vehicle and a replacement for the wheel replacement jack emphasising the market demand of the proposed solution which is a robust and a cost-effective solution.

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