Torque vectoring–based drive: Assistance system for turning an electric narrow tilting vehicle

Abstract

The increasing number of cars leads traffic congestion and limits parking issue make in urban area. The narrow tilting vehicles (NTV) therefore can potentially become the next generation of city cars due to its narrow width. However, due to the difficulty in leaning an NTV, a drive assistance strategy is required to maintain its roll stability during a turn. This paper presents an effective approach using torque vectoring method to assist the rider in balancing the NTV and thus, reducing the counter-steering requirements. The proposed approach is designed as the combination of two torque controllers, steer angle based torque vectoring (SATV) controller and tilting compensator based torque vectoring (TCTV) controller. The SATV controller is to reduce the counter-steering process via adjusting the vectoring torque based on the steering angle from rider. Meanwhile the TCTV controller develops the SATV with an additional tilting compensator to help balancing the leaning behaviour of NTVs. Numerical simulations with a number of case studies have been carried out to verify the performance of designed controllers. The results imply that the counter-steering process can be eliminated and the roll stability performance can be improved with the usage of the presented approach.

Finite-time disturbance observer–based funnel voltage control strategy for vehicle-to-grid inverter in islanded mode

“…When EVs are connected to the public power grid through charging stations, they can be regarded as distributed energy storage devices due to the energy storage function of EVs. [1][2][3] Thus, based on vehicle-to-grid (V2G) technology and under the condition of meeting the demand of car owners, EVs can participate in the regulation of the public power grid, and providing conditions for peak shaving and valley filling. [4][5][6] On the other side, the electric energy stored in EVs can also provide a short-term power supply for residents in case of power failure of the public grid.…”

Modelling and Control of Narrow Tilting Vehicle for Future Transportation System

“…Because of these issues, small narrow commuter vehicles are expected to become a new generation of city cars [1,2]. In the UK, some researches have been done in the past years, such as the CLEVER Project [3][4][5] and RESOLVE Project [6,7], which developed two prototype vehicles as shown in Figure 1 [8]. This kind of vehicles are also called narrow tilting vehicles (NTVs) have just half the width of a conventional car like a motorcycle but have four wheels like a car.…”