Hybrid Systems in Automotive Engine Control Andrea Balluchi - PDF document

st 1 HYCON PhD School on Hybrid Systems www.ist-hycon.org www.unisi.it Hybrid Systems in Automotive Engine Control Andrea Balluchi PARADES – Rome, Italy balluchi@parades.rm.cnr.it scimanyd suounitnoc enibmoc smetsys dirbyH lacipyt (snoitauqe ecnereffid ro laitnereffid) scimanyd etercsid dna stnalp lacisyhp fo fo lacipyt (snoitidnoc lacigol dna atamotua) fo senilpicsid gninibmoc yB .cigol lortnoc ,yroeht lortnoc dna smetsys dna ecneics retupmoc dilos a edivorp smetsys dirbyh no hcraeser ,sisylana eht rof sloot lanoitatupmoc dna yroeht fo ngised lortnoc dna ,noitacifirev ,noitalumis egral a ni desu era dna ,''smetsys deddebme`` ria ,smetsys evitomotua) snoitacilppa fo yteirav ssecorp ,smetsys lacigoloib ,tnemeganam ciffart .(srehto ynam dna ,seirtsudni HYSCOM IEEE CSS Technical Committee on Hybrid Systems 16 Siena, July 1 9-22, 2005 - Rectorate of the University of Siena

Outline Outline Hybrid Systems in Hybrid Systems in Automotive Engine Control Automotive Engine Control � Automotive: a promising domain for hybrid systems Automotive: a promising domain for hybrid systems � � Model Model- -based design based design � � Derivative design Derivative design � Andrea Balluchi Andrea Balluchi � Design flow Design flow � � Two automotive engine control applications of hybrid systems Two automotive engine control applications of hybrid systems � PARADES ฀ Università degli � Actual Engaged Gear Identification: a Hybrid Observer Approach Actual Engaged Gear Identification: a Hybrid Observer Approach PARADES � Studi di Pisa � Hybrid Modeling and Control of the Common Rail Hybrid Modeling and Control of the Common Rail in collaboration with in collaboration with � Luca Benvenuti Luca Benvenuti, Antonio , Antonio Bicchi Bicchi, , Claudio Lemma, Claudio Lemma, Emanuele Mazzi Emanuele Mazzi, , Alberto L. Sangiovanni- -Vincentelli Vincentelli, , Gabriele Gabriele Serra Serra Alberto L. Sangiovanni st HYCON PhD School on Hybrid Systems 1 1 st HYCON PhD School on Hybrid Systems Siena, 19- -22 July 2005 22 July 2005 Siena, 19 1st HYCON PhD School on Hybrid Systems 1st HYCON PhD School on Hybrid Systems A. Balluchi - A. Balluchi - PARADES Siena, 19 PARADES Siena, 19- -22 July 2005 p. 22 July 2005 p.2 Automotive networked control system Automotive networked control system Automotive control systems architecture Automotive control systems architecture � Car manufacturers have to redesign their products more and more Car manufacturers have to redesign their products more and more � frequently to meet customers’ demands on innovation frequently to meet customers’ demands on innovation � Today, a “one Today, a “one- -subsystem one subsystem one- -ECU” networked control system ECU” networked control system � The pressure of competitiveness is even higher for control syste The pressure of competitiveness is even higher for control system m � � � This rigid partition between subsystems and electronics This rigid partition between subsystems and electronics � development, since more than 80% of innovation is in electronics development, since more than 80% of innovation is in electronics � results in a higher cost of electronics results in a higher cost of electronics � � In today cars, the electronic control system is a networked syst In today cars, the electronic control system is a networked system em � � prevents the design of efficiently integrated functionalities prevents the design of efficiently integrated functionalities � � with more than 80 interconnected with more than 80 interconnected ECUs ECUs, some of them safety critical , some of them safety critical � it is often not efficient in terms of communication and synchron it is often not efficient in terms of communication and synchronization ization � � 1st HYCON PhD School on Hybrid Systems 1st HYCON PhD School on Hybrid Systems A. Balluchi - A. Balluchi - PARADES Siena, 19 PARADES Siena, 19- -22 July 2005 p. 22 July 2005 p.3 1st HYCON PhD School on Hybrid Systems 1st HYCON PhD School on Hybrid Systems A. Balluchi A. Balluchi - - PARADES Siena, 19 PARADES Siena, 19- -22 July 2005 p. 22 July 2005 p.4 Future scenario for automotive control systems Future scenario for automotive control systems Model- Model -based design based design � Model Model- -based design is becoming widely based design is becoming widely � used in automotive industry used in automotive industry � algorithms are designed and analyzed using algorithms are designed and analyzed using � block diagram block diagram- -based modeling tools based modeling tools � correctness of the algorithms is validated correctness of the algorithms is validated � against models of the plant against models of the plant � models form the basis for all subsequent models form the basis for all subsequent � development stages development stages � executable specification (instead of docs) executable specification (instead of docs) � � automatic code generation automatic code generation � � The new trend is The new trend is � � Advantages Advantages � � Break the “one Break the “one- -subsystem one subsystem one- -ECU” paradigm ECU” paradigm � � Time Time- -saving and cost saving and cost- -effective effective � � Distribute functionalities over several nodes to optimize number Distribute functionalities over several nodes to optimize number and cost of and cost of ECUs ECUs � � Design choices can be explored and Design choices can be explored and � � Advantages Advantages evaluated quickly and reliably evaluated quickly and reliably � � flexibility, cost reduction, redundancy (fault flexibility, cost reduction, redundancy (fault- -tolerance) tolerance) � Ideally, an optimized and fully tested system Ideally, an optimized and fully tested system � � is obtained is obtained � more sophisticated control enabled by more powerful hardware more sophisticated control enabled by more powerful hardware � 1st HYCON PhD School on Hybrid Systems 1st HYCON PhD School on Hybrid Systems A. Balluchi A. Balluchi - - PARADES Siena, 19 PARADES Siena, 19- -22 July 2005 p. 22 July 2005 p.5 1st HYCON PhD School on Hybrid Systems 1st HYCON PhD School on Hybrid Systems A. Balluchi A. Balluchi - - PARADES Siena, 19 PARADES Siena, 19- -22 July 2005 p. 22 July 2005 p.6