Next Article in Journal
The possibility for energy regeneration by electrification in Swedish car driving
Previous Article in Journal
Analyse of Clutch-brake System Control Based on Experimental Tests and Applied in Hybrid Power Train
 
 
World Electric Vehicle Journal is published by MDPI from Volume 9 issue 1 (2018). Previous articles were published by The World Electric Vehicle Association (WEVA) and its member the European Association for e-Mobility (AVERE), the Electric Drive Transportation Association (EDTA), and the Electric Vehicle Association of Asia Pacific (EVAAP). They are hosted by MDPI on mdpi.com as a courtesy and upon agreement with AVERE.
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Development and Series Application of a Vehicle Drivetrain Observer Used in Hybrid and Electric Vehicles

by
Dr. Gunther Götting
* and
Markus Kretschmer
Robert Bosch GmbH, Postfach 30 02 40, 70442 Stuttgart
*
Author to whom correspondence should be addressed.
World Electr. Veh. J. 2013, 6(2), 364-372; https://doi.org/10.3390/wevj6020364
Published: 28 June 2013

Abstract

This paper introduces the development and calibration process of a vehicle drivetrain observer used in hybrid and electric vehicles for active damping control (ADC) and for the improvement of the electric machine’s rotor angle signal quality. This approach starts with creating an overall vehicle model that includes the electric machine, the transmission, side shafts, the tires and the vehicle body. For control engineering purposes, that multi-order-model is then reduced into a two-mass-oscillator which can be easily described in state-space form. Using this reduced drivetrain model and applying a Luenberger observer approach, not only the signal quality of both the instrumented rotor angle and the speed of the electric machine can be improved considerably but also the oscillation dynamics of this vehicle drivetrain can be estimated. If not compensated during vehicle operation, drivetrain oscillations might lead to increased drivetrain wear, NVH issues and limited ride comfort; therefore, the oscillation speed is very important in computing an active damping torque that is to compensate drivetrain oscillations. Calibration of the vehicle drivetrain observer is done using specific vehicle test data that are fed into a standalone calibration tool identifying the parameters of the vehicle drivetrain as well as the Luenberger feedback vector. Based on these data, a proper active damping control application is set-up and verified in various vehicle tests and to lead to the calibration finally to the application in several hybrid and electric vehicle series projects (e.g. Peugeot 3008 HYbrid4).
Keywords: active damping control; hybrid vehicles; electric vehicles; observer; drivetrain dynamics active damping control; hybrid vehicles; electric vehicles; observer; drivetrain dynamics

Share and Cite

MDPI and ACS Style

Götting, D.G.; Kretschmer, M. Development and Series Application of a Vehicle Drivetrain Observer Used in Hybrid and Electric Vehicles. World Electr. Veh. J. 2013, 6, 364-372. https://doi.org/10.3390/wevj6020364

AMA Style

Götting DG, Kretschmer M. Development and Series Application of a Vehicle Drivetrain Observer Used in Hybrid and Electric Vehicles. World Electric Vehicle Journal. 2013; 6(2):364-372. https://doi.org/10.3390/wevj6020364

Chicago/Turabian Style

Götting, Dr. Gunther, and Markus Kretschmer. 2013. "Development and Series Application of a Vehicle Drivetrain Observer Used in Hybrid and Electric Vehicles" World Electric Vehicle Journal 6, no. 2: 364-372. https://doi.org/10.3390/wevj6020364

Article Metrics

Back to TopTop