Highly Integrative and flexible Electric Drive Unit for Electric Vehicles

ATZ worldwide ◽  
2011 ◽  
Vol 113 (5) ◽  
pp. 10-15
Author(s):  
Erik Schneider ◽  
Frank Fickel ◽  
Bernd Cebulski ◽  
Jens Liebold
2021 ◽  
Vol 11 (21) ◽  
pp. 10187
Author(s):  
Yonghyeok Ji ◽  
Seongyong Jeong ◽  
Yeongjin Cho ◽  
Howon Seo ◽  
Jaesung Bang ◽  
...  

Transmission mounted electric drive type hybrid electric vehicles (HEVs) engage/disengage an engine clutch when EV↔HEV mode transitions occur. If this engine clutch is not adequately engaged or disengaged, driving power is not transmitted correctly. Therefore, it is required to verify whether engine clutch engagement/disengagement operates normally in the vehicle development process. This paper studied machine learning-based methods for detecting anomalies in the engine clutch engagement/disengagement process. We trained the various models based on multi-layer perceptron (MLP), long short-term memory (LSTM), convolutional neural network (CNN), and one-class support vector machine (one-class SVM) with the actual vehicle test data and compared their results. The test results showed the one-class SVM-based models have the highest anomaly detection performance. Additionally, we found that configuring the training architecture to determine normal/anomaly by data instance and conducting one-class classification is proper for detecting anomalies in the target data.


2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Jean-Marc Fąfara

AbstractAviation has, over the years, become an inseparable element of human life. Airplanes are very commonly used for various tasks, such as transport of passengers and goods, military attack and defence, rescue, recreation and so on. In spite of the many advantages of aviation, one cannot ignore its disadvantages. The most important disadvantages of aviation are the emissions that cause atmospheric pollution and noise. Additionally, one should remember about the decreasing stocks of non-renewable fuels. These drawbacks affect human health and the natural environment. Therefore, a good alternative to conventional drive units in aircraft may turn out to be electric drive units in the near future. The aim of this article is to check the extent to which today’s knowledge and technology allow the use of electric drive units instead of conventional aircraft drive units. This article presents the concept of electric aircraft, from the electric drive unit to its power supply system. The feasibility of designing an electric jet drive unit for a passenger aircraft was analysed based on the performances of PZL 104 Wilga 35 and Boeing B787 Dreamliner.


Author(s):  
Goh Teck Chiang ◽  
Tomura Shuji ◽  
Sugiyama Takahide ◽  
Yuichi Hand ◽  
Masakazu Fukada ◽  
...  

MTZ worldwide ◽  
2019 ◽  
Vol 80 (4) ◽  
pp. 62-66
Author(s):  
Peter Janssen ◽  
Gereon Hellenbroich ◽  
Hans-Peter Lahey

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