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Energy management in a fuel cell/Li-ion capacitor hybrid vehicle needs to determine appropriate power split among the load and distinct power sources in order to minimize fuel consumption and power fluctuations in the fuel cell system while supplying adequate power to the load, and the state-of-charge of the Li-ion capacitor maintained at the permissible levels. This paper formulates this case as...
Traction motor systems for electric vehicles provides fast torque response that may let the driver input result in excessive propelling or regenerative braking torque, which can reduce tire-road adherence. The same situation can also occur due to excessive wheel slip that tends to spin or skid the wheels, resulting in safety issues or energy losses. However, to measure the slip ratios for vehicle...
Battery-powered electric vehicles may capture regenerative energy to extend driving range. However, while larger regenerative braking torque attains more regenerative power, excess braking torque may lock up the wheel and result in safety issues. In effect, maximization of the regenerative torque and in turn the energy recapture is subject to the safety requirements. This paper translates the energy...
State of charge of the energy storage in electric vehicle is no doubt a very important parameter. The equivalent circuit model for tractive super-capacitor is analyzed which is used in predicting the state of charge of tractive super-capacitor. The three-class T style RC equivalent circuit model is built based on the characteristic of pulse charging and discharging in the range of working voltage,...
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