Design and optimization of automotive engines present unique challenges on account of the large design space and conflicting constraints. A notable example of such a problem is optimizing the fuel consumption and reducing emissions over the drive cycle of an automotive engine. There are over twenty design variables (including operating conditions and geometry) for the abovementioned problem. Co...

As the U.S. government enacts new regulations for automotive fuel economy and emissions, the continuously variable transmission, or CVT, continues to emerge as a key technology for improving the fuel efficiency of automobiles with internal combustion (IC) engines. CVTs use infinitely adjustable drive ratios instead of discrete gears to attain optimal engine performance. Since the engine always ...

Current air-conditioning systems can reduce the fuel economy of high fuel-economy vehicles by about 50% and reduce the fuel economy of today’s mid-sized vehicles by more than 20% while increasing NOx by nearly 80% and CO by 70%. Automotive glazing has a significant impact on the peak and steady-state cooling loads of the vehicle. Glazing that reflects the infrared portion of the solar spectrum ...

Recently, various technologies of automotive CPS offer excellent potential for road safety and efficiency such as reducing car crashes, fuel consumption, pollution and congestion but are still developing now. On the other hand, they make an automotive system more complicated and the vulnerability of it also increases. In practice, many researchers already demonstrated that a real vehicle could ...

This paper surveys recent and historical publications on automotive powertrain control. Controloriented models of gasoline and diesel engines and their aftertreatment systems are reviewed, and challenging control problems for conventional engines, hybrid vehicles and fuel cell powertrains are discussed. Fundamentals are revisited and advancements are highlighted. A comprehensive list of referen...

In-car electronics plays an important role in many automotive applications, such as, for example, steer-by-wire and brake-by-wire, and is expected to gradually replace mechanical or hydraulic means to control these systems. The number of electronic components in a car has therefore significantly grown up, thus leading important implications on the vehicle engineering process. In particular, in-...

The effect of various fuel additives on the ability of platinum-palladium catalytic converters to remove the carbon monoxide and hydrocarbon components of automotive exhaust has been examined. Engine dynamometer studies suggest that these catalysts may be successfully used in conjunction with fuels of relatively high tetraethyllead concentrations, provided the ethylene dibromide portion of the ...

As a response to the ever more stringent emission standards, automotive engines have become more complex with more actuators. The traditional approach of using many single-input single output controllers has become more difficult to design, due to complex system interactions and constraints. Model predictive control offers an attractive solution to this problem because of its ability to handle ...

PEM fuel cell systems face highly dynamic load profiles in automotive application. This work showcases the impact of media supply adaption, system architecture and test rig restrictions on transient voltage response an stack. Current step profile experiments were conducted a rig, featuring balance plant components, short stack bench. A time scale analysis allowed us to identify predominant effe...