The article presents the concept of an electric drive for installation in the wheels of commercial vehicles, which will be developed as part of the project "Innovative electric drive unit for commercial vehicles", financed by the National Center for Research and Development under the LIDER XI program. In the article, the Authors presents the advantages and disadvantages of this type of drive and its possible applications. The paper presents the results of design calculations for the electromagnetic circuit along with thermal calculations and the mechanical structure of the drive.
PL
W artykule przedstawiono koncepcję napędu elektrycznego do montażu w kołach pojazdów użytkowych, która zostanie opracowana w ramach projektu „Innowacyjny elektryczny zespół napędowy do pojazdów użytkowych”, finansowanego przez Narodowe Centrum Badań i Rozwoju w ramach programu LIDER XI. W pracy autorzy przedstawili zalety i wady tego typu napędu oraz jego możliwe zastosowania, a także wyniki obliczeń projektowych obwodu elektromagnetycznego wraz z obliczeniami termicznymi, oraz konstrukcję mechaniczną napędu.
When the in-wheel motor is working, it will be affected by gravity, centrifugal force and electromagnetic force. These three kinds of mechanical loads will affect the mechanical stress characteristics of the in-wheel motor, and then affect the reliability of the in-wheel motor structure. In order to understand the influence of the above loads on the mechanical stress of the in-wheel motor, this paper takes a 15-kW built-in permanent magnet in-wheel motor as the research object. Based on the establishment of the electromagnetic field and structure field coupling analysis model of the in-wheel motor, the mechanical stress of the in-wheel motor under different mechanical loads under rated and peak conditions are calculated and analyzed, and the influence of different mechanical loads on the stress and deformation of the in-wheel motor are studied. The research results show that, regardless of the rated operating condition or the peak operating condition, the in-wheel motor has the largest mechanical stress and deformation under the combined action of centrifugal force and electromagnetic force, and the smallest mechanical stress and deformation under the action of gravity only; under the same load (except for the case of gravity only), the stress and deformation of the in-wheel motor under the peak operating condition are larger than those under the rated operating condition; and the maximum stress and deformation of the in-wheel motor appear at the rotor magnetic bridge and the inner edge of the rotor, respectively, so the rotor is an easily damaged part of the in-wheel motor.
Przedstawiono zaprojektowany i wykonany model pojazdu napędzanego czterema silnikami oraz strukturę układu sterującego, z wykorzystaniem mikrokontrolerów.
EN
The paper presents the model of a vehicle driven with four in-wheel motors and the structure of control circuit with microcontrollers.
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