coDCcar_logo research project

Title: Advanced control of on-board DC multibus systems in vehicles.
Founding: Ministerio de Economía, Industria y Competitividad (Spanish Government)
Identification number: DPI2017-85404-P.
Period: 01/01/2018 - 31/12/2021.

This project is carried out by the ACES research group at the Institute of Industrial and Control Engineering (IOC) of the Universitat Politècnica de Catalunya (UPC).


In the last years two main challenges raised up in the automotive sector: for one hand, the CO2 reduction that implies a weight reduction and increasing the efficiency of the vehicle components and, for another hand, the customer’s requirements, mainly, in terms of performance and security. Consequently, the use of electrified systems emerged as an alternative to be considered by the OEMs (Original Equipment Manufacturers). This new tendency does not only consider the electrification of the power train (i.e. electrical and hybrid vehicles) but is also evident in many auxiliary devices that are increasingly being electrified.
However, the major electrification of vehicles could imply problems related to on-board DC micro-grids. This implies the necessity of designing: controllers that ensure grid stability in front of the connection of constant power loads (CPLs), but also offer good robustness and efficiency properties, and optimization algorithms for the dc micro grid.


This project considers a DC multi-bus, with the most, used automotive voltages (400V, for power the train, and 48 V and 12 V, for auxiliary devices), composed by only one storage element (batteries). The dc buses will be connected by one multiport converter (400/48/12 V DC) that will also offer charger functionalities thanks to a single-phase 230 V, or tree-phase 400 V, controlled unitary power factor rectifier. The main advantage of using only one battery and one power converter is the size and weight reduction.
The aim of this project is to study and develop control strategies for a DC multi-bus and a multi-port power converter that provides energy management among the dc buses and AC/DC charging functionalities. During the project several control techniques will be used; resonant digital control, sliding-mode control, adaptive control, control based on systems with complex coefficients, control of complex networks and continuous optimization methods. The obtained control algorithms will be tested in the experimental plants and, the obtained results are expected to be of interest of the industrial and automotive sectors.

KEY WORDS: Control of power electronic converters, stability and regulation, constant power loads, on-board dc networks.




  1. V. Repecho, D. Biel, J.M. Olm and E. Fossas, Robust sliding mode control of a DC/DC Boost converter with switching frequency regulation, Journal of the Franklin Institute, 355(13), pp. 5367-5383, 2018.
  2. O. Monge-Villora, M. Dominguez-Pumar and J.M. Olm, Analysis of the dynamics of an active control of the surface potential in metal oxide gas sensors, Computers and Chemical Engineering, 113, pp. 1–10, 2018.
  3. A. Arias, J. Caum, E. Ibarra and R. Griñó, Reducing the cogging torque effects in hybrid stepper machines by means of resonant controllers, IEEE Trans. on Industrial Electronics, 66(4), pp. 2603-2612, 2019.
  4. A. Dòria-Cerezo, F.M. Serra and M. Bodson, Complex-based controller for a three-phase inverter with an LCL filter connected to unbalanced grids, IEEE Trans. on Power Electronics, 34(4), pp. 3899-3909, 2019.
  5. E. Benedito, D. del Puerto-Flores, A. Dòria-Cerezo, and J.M.A. Scherpen, Port-Hamiltonian based Optimal Power Flow algorithm for multi-terminal DC networks, Control Engineering Practice, 83, pp. 141-150, 2019.
  6. A. Arias, E. Ibarra, E. Trancho, R. Griñó, I. Kortabarria, and J. Caum, Comprehensive high speed automotive SM-PMSM torque control stability analysis including novel control approach, Electrical Power and Energy Systems, 109, pp. 423-433, 2019.
  7. U. Montanaro, R. Costa-Castelló, J.M. Olm, C. Larco Barros, Experimental validation of a continuous-time MCSI algorithm with bounded adaptive gains, Journal of the Franklin Institute, 356(12), pp. 5881-5897, 2019.
  8. V. Repecho, D. Biel and R. Ramos-Lara, A comparative study of terminal and conventional sliding mode start-up peak current controls for a synchronous buck converter, IEEE Trans. on Power Electronics, 35(2), pp. 2222-2232. 2020.
  9. V. Repecho, D. Biel and N. Masclans, Robust ZAD sliding mode control for an 8-phase step-down converter, IEEE Journal of Emerging and Selected Topics in Power Electronics, In Early Access.
  10. V. Repecho, D. Biel and J.M. Olm, A simple switching frequency regulated sliding mode controller for a VSI with a full digital implementation, IEEE Journal of Emerging and Selected Topics in Power Electronics. In Early Access.


  1. M.K. Ghezzi, A. Dòria-Cerezo and J.M. Olm, Yaw moment MRAC with optimal torque vectoring for a four in-wheel motor EV, Proc. 19th International Conference on Industrial Technologies (ICIT), Lyon (France), February 20-22, 2018.
  2. D. Biel and J.M.A. Scherpen, Voltage regulation with power curtailment in a single-phase grid-connected PV, Proc. IEEE International Symposium on Circuits and Systems (ISCAS), Florence (Italy), May 27-30, 2018.
  3. E. Benedito, A. Dòria-Cerezo, C. Kunusch and J.M. Olm, Traffic flow-oriented design and analysis of an adaptive cruise control system, Proc. IEEE International Symposium on Circuits and Systems (ISCAS), Florence (Italy), May 27-30, 2018.
  4. D. Biel and J.M.A. Scherpen, Active and reactive power regulation in single-phase PV inverters, Proc. European Control Conference (ECC), Limassol (Cyprus), June 12-15, 2018.
  5. C. Bonet, M.R. Jeffrey, P. Martín and J.M. Olm, An aging multiple frequency oscillator, International Conference on Advances in Nonsmooth Dynamics, Bristol (UK), June 13-15, 2018.
  6. V. Repecho and D. Biel, Rotor position estimation at zero speed in a sliding mode controlled PMSM, Proc. Int. Workshop on Variable Structure Systems (VSS), Graz (Austria), July 9-11, 2018.
  7. A. Dòria-Cerezo, J.M. Olm, E. Benedito and D. Biel, A variable structure-based algorithm for adaptive cruise control, Proc. Int. Workshop on Variable Structure Systems (VSS), Graz (Austria), July 9-11, 2018.
  8. M. Dominguez-Pumar, L. Kowalski, O. Monge, J.M. Olm, E. Navarrete, E. Llobet and J. Pons-Nin, Understanding noise-shaping in sigma-delta controls of Surface Potential for MOX gas sensors, Proc. Int. Symposium on Nonlinear Theory and its Applications (NOLTA), Tarragona (Spain), September 2-6, 2018.
  9. A. Dòria-Cerezo, D. Biel, J.M. Olm and V. Repecho, Sliding mode control of a differential-drive mobile robot following a path, Proc. European Control Conference (ECC), Napoli (Italy), June 25-28, 2019.
  10. R. Griñó and A. Dòria-Cerezo, Modelling and simulation of a magnetically coupled multiport dc-dc converter, Proc. 24th IEEE Conference on Emerging Technologies and Factory Automation (ETFA), Zaragoza (Spain), September 10-13, 2019.
  11. J.M. Olm, E. Fossas, V. Repecho, A. Dòria-Cerezo and R. Griñó, Feedback linearizing control of a magnetically coupled multiport dc-dc converter for automotive applications, Proc. 45th Annual Conference of the IEEE Industrial Electronics Society (IECON), Lisbon (Portugal), October 14-17, 2019.