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Electric Car Book Download Center ElectricalMore Information Electrical engineering guides, research studies and papers Step By Step Guide to Design and Functional Basics of Electric Cars Share Home Download Center Electrical Engineering Books and Technical Guides Electrical engineering guides Step By Step Guide to Design and Functional Basics of Electric Cars Basics of Electromobility The term electric motorgenerator is used instead of alternator, electric motor and starter.In principle, any electric motor can also be used as an alternator.Design and Function Basics of Electric Cars Step By Step For Engineers When the electric motorgenerator is driven mechanically, it supplies electrical energy as an alternator.
Electric Car Book Free HVMVLV TechnicalWhen the electric motorgenerator is supplied with an electrical current, it works as a drive. Electric motorsgenerators used for propulsion are water-cooled. Air cooling would also be possible but complex due to space and the amount of heat generated. Electric Car Book Full Hybrid VehiclesIn full hybrid vehicles (HEV), the electric motorgenerator also functions as the starter for the combustion engine. Three-phase synchronous motors are often used as the electric motorgenerator. A three-phase motor is powered by a three-phase alternating current. It works with three coils that are arranged in a circle around the rotor to form the stator and are each electrically connected to one of the three phases. Several pairs of permanent magnets are located on the rotor in this synchronous motor. Since the three coils are supplied sequentially with a current, together they generate a rotating electrical field that causes the rotor to rotate when the electric motorgenerator is used to drive the vehicle. Drive Units and High-Voltage Components When used as an alternator, the movement of the rotor induces a three-phase alternating voltage in the coils that is transformed into a direct voltage for the high-voltage battery in the power electronics. In this context, the term synchronous means running in synchronism and refers to the ratio of the rotation speed of the energised field in the stator coils to the rotation speed of the rotor with its permanent magnets. The advantage of synchronous motors compared with asynchronous motors is the more precise control of the motor in automobile applications. Strengths of the Electric MotorGenerator The electric motorgenerator is very environmentally compatible thanks to the lack of noise and harmful emissions. The electric motorgenerator responds quickly, has good acceleration figures and a high level of efficiency. In contrast to combustion engines, electric motors supply their nominal power steplessly over a broad rpm range. The maximum torque is available even at low rpm (i.e. As a result, neither a manually operated transmission, an automatic transmission nor a clutch are required. The direction of rotation of an electric drive motor is freely selectable. It can turn clockwise to move the vehicle forwards and counter-clockwise to reverse it. ![]() Format: PDF Size: 1.5 MB Pages: 62 Download: Right here Get Download Updates Get More With Premium Membership Design and Function Basics of Electric Vehicles For Service Engineers Related EEPs content with sponsored links Premium Membership Get access to premium HVMVLV technical articles, electrical engineering guides, research studies and much more It helps you to shape up your technical skills in your everyday life as an electrical engineer.
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