To address the issues of increasing loss and low efficiency in the leakage flux controllable permanent magnet(LFC-PM) in-wheel motor caused by the variable flux

a variable-parameter-loss-based loss minimization control strategy is proposed. Based on the analysis of flux change and core loss distribution of LFC-PM in-wheel motor

a mapping relationship model between core loss and variable parameters is established. Moreover

a mathematical model for the LFC-PM in-wheel motor

considering a variable parameter core loss branch

is derived. On this basis

a Lagrange function is constructed using the principle of minimum loss

where the motor's operating range is divided into light load area

medium load area

and heavy load area

and the optimal current distribution values in each operation range are solved. Finally

based on an LFC-PM in-wheel motor prototype and experimental setups

a comparison was conducted between the proposed control strategy and two maximum torque per ampere(MTPA) control strategies. The results verified the validity and effectiveness of the proposed control strategy.