A high speed induction machine with two-speed transmission as drive for electric vehicles

2006 ◽  
Author(s):  
B. Eberleh ◽  
Th. Hartkopf
Keyword(s):  
Electric Vehicles ◽  
High Speed ◽  
Induction Machine

Getriebeakustik von Elektrofahrzeugen*/Gearbox acoustic for electric vehicles - Investigation of the effects of wobble, concentricity and pitch error in high-speed-applications

2017 ◽  
Vol 107 (05) ◽  
pp. 334-339
Author(s):  
C. Prof. Brecher ◽  
C. Löpenhaus ◽  
M. Ahmad
Keyword(s):  
Design Process ◽  
Electric Vehicles ◽  
High Speed ◽  
Pitch Error ◽  
Decisive Influence

Der Einfluss fertigungs- sowie montagebedingter Abweichungen über dem Umfang auf das Anregungsverhalten, zum Beispiel Teilungs- oder Rundlaufabweichungen, bleibt im Auslegungsprozess konventioneller Getriebe weitestgehend unberücksichtigt. Diese über den Umfang veränderliche Kontaktgeometrie hat einen enormen Einfluss auf die Anregung der Drehordnungen bei schnelllaufenden Getrieben in Elektrofahrzeugen. Die Wichtigkeit der Betrachtung dieser Abweichungen werden in einer Simulationsstudie untersucht.   The influence of manufacturing- and assembly-related deviations are largely ignored in the design process of the excitation behavior of conventional transmissions. Effects of the deviation of tooth contacts over one revolution have a decisive influence on the excitation of the rotational order in gearboxes of electric vehicles. This report investigates in simulation the effects of these deviations on the excitation behavior considering high-speed-application.

Electric Vehicle Improved by Three-Phase Asynchronous Cooled Motor

2013 ◽  
Author(s):  
Giuseppe Rattighieri ◽  
Michele Trancossi ◽  
Nicola Dorigo Salomon ◽  
Dean Vucinic
Keyword(s):  
Electric Vehicle ◽  
Electric Vehicles ◽  
High Speed ◽  
Rotation Speed ◽  
Reggio Emilia ◽  
Heavy Load ◽  
Power Train ◽  
Electric Car ◽  
Three Phase ◽  
Cabin Interior

This paper presents the EVITA electric car. EVITA is the acronym of Electric Vehicle Improved by Three-phase Asynchronous cooled motor. It is a research project developed jointly by RGEngineering and University of Modena and Reggio Emilia. It aims to produce a novel electric power train with the capability of solving three fundamental problems of today commercial electric vehicles: 1. direct torque dependency of the rotation speed, and its reduction at high speed regimes; 2. electric motors performances reduction due to the overheating effects under heavy load conditions; 3. acclimatization of the car cabin interior in winter times.

scholarly journals Performance Entitlement by Using Novel High Strength Electrical Steels and Copper Alloys for High-Speed Laminated Rotor Induction Machines

Electronics ◽  
2022 ◽  
Vol 11 (2) ◽  
pp. 210
Author(s):  
Fengyu Zhang ◽  
David Gerada ◽  
Zeyuan Xu ◽  
Yuling He ◽  
He Zhang ◽  
...  
Keyword(s):  
Rare Earth ◽  
High Speed ◽  
Copper Alloys ◽  
Induction Machine ◽  
High Strength ◽  
Induction Machines ◽  
Electrical Steels ◽  
Application Range ◽  
Recent Developments ◽  
Free Induction

The laminated rotor Induction Machine (IM), with its simple construction and manufacturing, robustness, ease of control and comparatively lower cost remains by far the most utilized electromechanical energy converter. At very high speeds, traditionally its use is considered to be limited to the previously established operational limits of 2.5 × 105 rpm√kW, beyond which the surface Permanent Magnet (PM) Machine and the solid rotor Induction Machine become the machines available for consideration. The aforesaid limits are derived from the use of classic materials. This paper reviews the recent developments in electrical steels and copper alloys and translates these into the resulting performance entitlement and operational limits through a case study involving a marine application, for which an existing rare-earth PM machine is in use. It is concluded that with novel materials, laminated rotor induction machines can be operated up to 6 × 105 rpm√kW, thus opening the use of the rare-earth free Induction Machine for a wider application range previously limited to PM machines.

scholarly journals Adopting the Topology Optimization in the Design of High-Speed Synchronous Reluctance Motors for Electric Vehicles

2020 ◽  
Vol 56 (5) ◽  
pp. 5429-5438
Author(s):  
Andrea Credo ◽  
Giuseppe Fabri ◽  
Marco Villani ◽  
Mircea Popescu
Keyword(s):  
Topology Optimization ◽  
Electric Vehicles ◽  
High Speed
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