Research on high speed avoidance path tracking of pure electric vehicles

2020 ◽  
Vol 12 (3) ◽  
pp. 214
Author(s):  
Peng Yu ◽  
Jian Wang ◽  
Jun Yang
Keyword(s):  
Electric Vehicles ◽  
High Speed ◽  
Path Tracking

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 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

Time-optimal path tracking for robots under dynamics constraints based on convex optimization

Robotica ◽  
2015 ◽  
Vol 34 (9) ◽  
pp. 2116-2139 ◽  
Author(s):  
Qiang Zhang ◽  
Shurong Li ◽  
Jian-Xin Guo ◽  
Xiao-Shan Gao
Keyword(s):  
Convex Optimization ◽  
High Speed ◽  
Optimal Path ◽  
Robotic Manipulators ◽  
Path Tracking ◽  
Minimum Time ◽  
Linear Functions ◽  
Change Rate ◽  
Time Path ◽  
Motion Time

SUMMARYTo fully utilize the dynamic performance of robotic manipulators and enforce minimum motion time in path tracking, the problem of minimum time path tracking for robotic manipulators under confined torque, change rate of the torque, and voltage of the DC motor is considered. The main contribution is the introduction of the concepts of virtual change rate of the torque and the virtual voltage, which are linear functions in the state and control variables and are shown to be very tight approximation to the real ones. As a result, the computationally challenging non-convex minimum time path tracking problem is reduced to a convex optimization problem which can be solved efficiently. It is also shown that introducing dynamics constraints can significantly improve the motion precision without costing much in motion time, especially in the case of high speed motion. Extensive simulations are presented to demonstrate the effectiveness of the proposed approach.

SPWM Fed Induction Motor Drive Performance Using SIMULINK

2021 ◽  
Vol 7 (2) ◽  
Author(s):  
Singampalli Hema ◽  
Singampalli Hema ◽  
Singampalli Hema ◽  
Singampalli Hema
Keyword(s):  
Induction Motor ◽  
Electric Vehicles ◽  
High Speed ◽  
Fossil Fuels ◽  
Pulse Width Modulation ◽  
Power Ratio ◽  
Dc Motors ◽  
Speed Range ◽  
Single Phase Inverter ◽  
Ac Induction Motor

In the former times, IC engines were used for transportation by most of the vehicles. But due to the depletion of fossil fuels day to day, the world is moving towards the Electric Vehicles (EVs) to overcome this problem. Electric Vehicles have higher efficiency and weight/power ratio. In general, DC motors were used in electric vehicles. The DC motors could not meet the requirements of customer needs because of its low speed range. In the recent studies, an AC Induction motor has several advantages over DC motors because of its robustness, high speed range, and efficiency and weight/power ratio. This paper presents the performance analysis of AC Induction motor when fed with the Single-Phase Inverter. The gate pulses are given by using Sinusoidal Pulse Width Modulation (SPWM) technique. The results are then compared with the performance of DC motor using MATLAB/SIMULINK.

scholarly journals Comparison of Path Tracking and Torque-Vectoring Controllers for Autonomous Electric Vehicles

2018 ◽  
Vol 3 (4) ◽  
pp. 559-570 ◽  
Author(s):  
Christoforos Chatzikomis ◽  
Aldo Sorniotti ◽  
Patrick Gruber ◽  
Mattia Zanchetta ◽  
Dan Willans ◽  
...  
Keyword(s):  
Electric Vehicles ◽  
Path Tracking ◽  
Torque Vectoring ◽  
Autonomous Electric Vehicles
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