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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

Energy efficiency according to vehicle speed and acceleration.
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sensors-15-14946-f002: Energy efficiency according to vehicle speed and acceleration.

Mentions: For an eco assist technique to be of use on the road, real-time monitoring considering various physical factors is very important, so the sensory information of an electric vehicle is collected and the energy efficiency is investigated by profiling an electric motor’s characteristics in real-time. According to our research, the vehicle speed has a large impact on the energy usage efficiency and the acceleration acts as a relevant exogeneous variable as shown in Figure 2. There exists a specific period of vehicle speed, that has high-energy usage efficiency and shows different characteristics under battery energy usage conditions. We conclude that 20 km/h–60 km/h is the most economic speed range when the air-conditioner is off and the heater is on, as shown in Figure 3. On the other hand, the energy usage efficiency tends to increase with the amount of brake pedal strokes, since the state of charge (SOC) of the battery increases because of regenerative braking properties. Therefore, there is no benefit to providing eco guide information for the braking behavior of a battery electric vehicle, whereas there is a benefit for a gasoline-powered vehicle.


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

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

Energy efficiency according to vehicle speed and acceleration.
© Copyright Policy
Related In: Results  -  Collection

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

sensors-15-14946-f002: Energy efficiency according to vehicle speed and acceleration.
Mentions: For an eco assist technique to be of use on the road, real-time monitoring considering various physical factors is very important, so the sensory information of an electric vehicle is collected and the energy efficiency is investigated by profiling an electric motor’s characteristics in real-time. According to our research, the vehicle speed has a large impact on the energy usage efficiency and the acceleration acts as a relevant exogeneous variable as shown in Figure 2. There exists a specific period of vehicle speed, that has high-energy usage efficiency and shows different characteristics under battery energy usage conditions. We conclude that 20 km/h–60 km/h is the most economic speed range when the air-conditioner is off and the heater is on, as shown in Figure 3. On the other hand, the energy usage efficiency tends to increase with the amount of brake pedal strokes, since the state of charge (SOC) of the battery increases because of regenerative braking properties. Therefore, there is no benefit to providing eco guide information for the braking behavior of a battery electric vehicle, whereas there is a benefit for a gasoline-powered vehicle.

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