Nowadays, various researches about eco-friendly vehicles such as hybrid electric vehicle, fuel cell vehicle and electric vehicle have been actively carried out. Since most of these green cars have electric motors, the regenerative energy technology can be used to improve the fuel economy and the energy efficiency of vehicles. In order to apply the regenerative braking, the research and development on electronic brake system such as EMB(Electro Mechanical Brake), EWB(Electro Wedge Brake), and EHB(Electro Hydraulic Brake) are necessary which can actively control the physical braking power according to the regenerative breaking power of the motor unlike the existing hydraulic brake system. In this report, the performance evaluation of electro-hydraulic brake for fuel cell vehicle has been executed. The environment to execute HILS with the electro-hydraulic brake and fuel cell vehicle simulator was implemented. Using the experiment data regarding the step response of the electric hydraulic brake, the characteristics of transient state was modeled as the secondary delivery function, and was applied to the fuel cell vehicle simulator as the brake model to complement the credibility for the braking power response of the simulator. In order to examine the characteristics regarding the deceleration change in the transient region of regenerative braking system, the delay response of the motor was varied to execute simulation and the basic data for establishing control strategy to stabilize the regenerative braking system was secured. Cooperation control algorithm was developed to improve the change in deceleration in the transient region and evaluated to HIL simulation environment and the execution results confirmed that the change in deceleration was reduced.
Performance evaluation of electro-hydraulic brake for fuel cell vehicles using hardware-in-the-loop simulation
2012
9 Seiten, 13 Bilder, 1 Tabelle, 8 Quellen
Conference paper
English
Brennstoffzellenfahrzeug , Leistungsbewertung , Bremsleistung , elektrischer Motor , Forschung und Entwicklung , hydraulische Bremse , elektrische Bremse , experimentelle Daten , Komplement , elektronisches Bremssystem , Hydrauliksystem , Sprungantwort , transienter Zustand , Hybridfahrzeug , Kraftstoffeinsparung , Bremssystem , Regelungsstrategie , Regelalgorithmus , Nutzbremsung
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