A control law with the function of active safety systems for electromechanical transmissions of multi-wheeled vehicles

Var ious types of t ransmi s s ion, such as mechanical , hydraul ic, electro-mechanical, hydrostatic, and combined, are currently in use in multi-wheeled vehicles (MWV). Unfortunately, there is no universal control law for individually driven wheels. Therefore, the main advantage of flexible transmissions, that is, the ability to provide the driver
with a required torque at any time according to the traffic conditions is not fully used. In this study, a univer sal cont rol law i s synthes ized for electromechanical MWV transmissions. It describes the power distribution between the wheels and the operation of active safety systems such as anti-lock and anti-slip braking systems. In addition, a control law for an individual electric drive of wheels including traction and braking torque control laws on drive wheels is proposed and algorithms for anti-lock and anti-slip braking systems are suggested. The proposed control law proved its efficiency and robustness in the simulation of MWV maneuvers. The research results will be useful in automotive industry designing and manufacturing multi-wheeled vehicles of various types and purposes as well as in organizations developing control systems for such vehicles.

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