The trend in the electrification of vehicles to reduce the degrading pollution of our planet is undeniable, including the three-wheeled vehicle (TWV). Research on active safety systems for TWVs is incipient and the risk of tripped and un-tripped rollovers is very high in delta configurations. A tripped rollover occurs when a vehicle slides sideways, digging its tires into soft soil or striking an object. Un-tripped rollovers usually occur during collision avoidance manoeuvres and constitute only up to 5% of all rollovers; disappointingly, research is mostly available for un-tripped rollovers. Even worse, variable loading conditions have to be considered since they have a significant effect on the centre of gravity position, hence in the rollover risk. In this article, new estimations for rollover risk are presented including both tripped and un-tripped. Moreover, the braking and in-wheel motors of a delta three-in-wheeled electric vehicle (TiWEV) are used for a robust control design of an improved/enhanced dynamic stability control (eDSC); the eDSC assists the driver to mitigate such risks even despite holes/bumps on road. A common Lyapunov function and an LMI problem resolution ensure robust stability while optimization allows tuning the controller. The eDSC implementation on a TiWEV is relatively simple and requires an inertial measurement unit.
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