Limits...
Eco Assist Techniques through Real-time Monitoring of BEV Energy Usage Efficiency.

Kim Y, Lee I, Kang S - Sensors (Basel) (2015)

Bottom Line: For eco monitoring, the eco indicator and eco report are suggested to teach eco-friendly driving habits.The vehicle test, which is done in four ways, consists of federal test procedure (FTP)-75, new european driving cycle (NEDC), city and highway cycles, and visual feedback with audible warnings is provided to attract the driver's voluntary participation.The vehicle test result shows that the energy usage efficiency can be increased up to 19.41%.

View Article: PubMed Central - PubMed

Affiliation: Department of Electrical and Electronic Engineering, Yonsei University, Seoul 120-749, Korea. younsunny.kim@gmail.com.

ABSTRACT
Energy efficiency enhancement has become an increasingly important issue for battery electric vehicles. Even if it can be improved in many ways, the driver's driving pattern strongly influences the battery energy consumption of a vehicle. In this paper, eco assist techniques to simply implement an energy-efficient driving assistant system are introduced, including eco guide, eco control and eco monitoring methods. The eco guide is provided to control the vehicle speed and accelerator pedal stroke, and eco control is suggested to limit the output power of the battery. For eco monitoring, the eco indicator and eco report are suggested to teach eco-friendly driving habits. The vehicle test, which is done in four ways, consists of federal test procedure (FTP)-75, new european driving cycle (NEDC), city and highway cycles, and visual feedback with audible warnings is provided to attract the driver's voluntary participation. The vehicle test result shows that the energy usage efficiency can be increased up to 19.41%.

No MeSH data available.


Related in: MedlinePlus

An example of electric engine characteristic map.
© Copyright Policy
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4541816&req=5

sensors-15-14946-f001: An example of electric engine characteristic map.

Mentions: The energy efficiency of a battery electric vehicle (BEV) can be defined by analyzing the correlation for some energy saving behavioral aspects: The acceleration, vehicle speed and battery power consumption. For combustion engines, comparatively high acceleration even saves fuel, since the engine operations are generally more efficient for higher power demands. Regarding electric engines, the energy efficiency, which is the conversion factor from the chemical energy to the delivered mechanical energy, depends on the engine speed and power demand, so pure physics rules: Given a fixed maximum speed, the required mechanical energy to attain a certain speed is essentially independent of the acceleration. The efficiency characteristic map of electrical motors is of the order of 90% in most operating conditions, and is essentially flat as shown in Figure 1 [22]. A small differential due to wind drag can be neglected in city traffic.


Eco Assist Techniques through Real-time Monitoring of BEV Energy Usage Efficiency.

Kim Y, Lee I, Kang S - Sensors (Basel) (2015)

An example of electric engine characteristic map.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4541816&req=5

sensors-15-14946-f001: An example of electric engine characteristic map.
Mentions: The energy efficiency of a battery electric vehicle (BEV) can be defined by analyzing the correlation for some energy saving behavioral aspects: The acceleration, vehicle speed and battery power consumption. For combustion engines, comparatively high acceleration even saves fuel, since the engine operations are generally more efficient for higher power demands. Regarding electric engines, the energy efficiency, which is the conversion factor from the chemical energy to the delivered mechanical energy, depends on the engine speed and power demand, so pure physics rules: Given a fixed maximum speed, the required mechanical energy to attain a certain speed is essentially independent of the acceleration. The efficiency characteristic map of electrical motors is of the order of 90% in most operating conditions, and is essentially flat as shown in Figure 1 [22]. A small differential due to wind drag can be neglected in city traffic.

Bottom Line: For eco monitoring, the eco indicator and eco report are suggested to teach eco-friendly driving habits.The vehicle test, which is done in four ways, consists of federal test procedure (FTP)-75, new european driving cycle (NEDC), city and highway cycles, and visual feedback with audible warnings is provided to attract the driver's voluntary participation.The vehicle test result shows that the energy usage efficiency can be increased up to 19.41%.

View Article: PubMed Central - PubMed

Affiliation: Department of Electrical and Electronic Engineering, Yonsei University, Seoul 120-749, Korea. younsunny.kim@gmail.com.

ABSTRACT
Energy efficiency enhancement has become an increasingly important issue for battery electric vehicles. Even if it can be improved in many ways, the driver's driving pattern strongly influences the battery energy consumption of a vehicle. In this paper, eco assist techniques to simply implement an energy-efficient driving assistant system are introduced, including eco guide, eco control and eco monitoring methods. The eco guide is provided to control the vehicle speed and accelerator pedal stroke, and eco control is suggested to limit the output power of the battery. For eco monitoring, the eco indicator and eco report are suggested to teach eco-friendly driving habits. The vehicle test, which is done in four ways, consists of federal test procedure (FTP)-75, new european driving cycle (NEDC), city and highway cycles, and visual feedback with audible warnings is provided to attract the driver's voluntary participation. The vehicle test result shows that the energy usage efficiency can be increased up to 19.41%.

No MeSH data available.


Related in: MedlinePlus