Power Consumption and Conversion of EPS Systems

Eki, Hirozumi; Teratani, Tatsuo; Iwasaki, Tatsuya

doi:10.1109/pccon.2007.373137

Cited by 17 publications

(11 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Electric Power Steering (EPS) Systems [5] EPS is the most important electric system in terms of fuel consumption improvement and safety. In small-sized cars, EPS can be driven from DC 14 V but in mediumand large-sized cars, voltage needs to be stepped up from 14 V to 42 V in order to ensure EPS performance with insufficient torque.…”

Section: V Chassis Systemsmentioning

confidence: 99%

Impact of DC 48 V on Automotive Power Supply Systems: Comparison with DC 42 V and Future View under DC 60 V

Teratani

2016

Electrical Engineering Japan

Self Cite

View full text Add to dashboard Cite

In the twenty-first century, rapid advances are being made in the electric propulsion of vehicles as a countermeasure of global warming. In addition, CO 2 emissions from all vehicles are to be stringently regulated to 95 g/km by 2020. Thus, most automakers around the world have had to develop not only hybrid electric vehicles, but also conventional internal combustion engine with energy-saving technology. Battery technology (Li-ion) and semiconductor technology (SiC and GaN) for automotive power supply systems have proceeded to the mass-production stage. In 2011, Verband der Automobilindustrie (German OEMs and suppliers) announced the adoption of DC 48 V for the market of 2020. In this paper, we analyze the needs and impact of DC 48 V and compare it with DC 42 V (current technology). We also try to portray the future view under DC 60 V for automotive power supply systems. C⃝ 2016 Wiley Periodicals, Inc. Electr Eng Jpn, 197(2): 48-55, 2016; Published online in Wiley Online Library (wileyonlinelibrary.com).

show abstract

Section: V Chassis Systemsmentioning

confidence: 99%

Impact of DC 48 V on Automotive Power Supply Systems: Comparison with DC 42 V and Future View under DC 60 V

Teratani

2016

Electrical Engineering Japan

Self Cite

View full text Add to dashboard Cite

show abstract

“…The abc frame voltage equation can be transformed to a dq-axis voltage equation in the rotor reference frame as shown in (2).…”

Section: A Modeling Of a Pm Synchronous Motormentioning

confidence: 99%

Torque Ripple Reduction of a PM Synchronous Motor for Electric Power Steering using a Low Resolution Position Sensor

Cho¹,

Lee²,

Mok³

et al. 2010

Journal of Power Electronics

View full text Add to dashboard Cite

MDPS (motor driven power steering) systems have been widely used in vehicles due to their improved fuel efficiency and steering performance when compared to conventional hydraulic steering. However, the reduction of torque ripples and material cost are important issues. A low resolution position sensor for MDPS is one of the candidates for reducing the material costs. However, it may increases the torque ripple due to the current harmonics caused by low resolution encoder signals. In this paper, the torque ripple caused by the quantized rotor position of the low resolution encoder is analyzed. To reduce the torque ripples caused by the quantization of the encoder signals, the rotor position and the speed are estimated by measuring the frequency of the encoder signals. In addition, the compensating q-axis current is added to the current command so that the 6 th order torque harmonic is attenuated. The reduction of torque ripples by applying the estimated rotor position and the compensated q-axis current is verified through experimental results.

show abstract

“…Thirdly, by combining the energy storage device with the energy source, the stored energy can downsize the peak power rating of the energy source, leading to higher efficiency of the energy source at partial load. Fourthly, more mechanical, pneumatic or hydraulic equipments are replaced by their electrical counterparts with higher efficiency [Eki et al, 2007]. Finally, the emerging energy-efficient power sources, such as the thermoelectric generator (TEG) [Eakburanawat and Boonyaroonate, 2006], and the hybridization of multiple sources [Chau and Wong, 2001] can also help to improve the overall efficiency.…”

Section: Overall Efficiencymentioning

confidence: 99%

Overview of Power Networks in Hybrid Electric Vehicles

Zhang

Chau

Chan

2010

JAEV

View full text Add to dashboard Cite

In hybrid electric vehicles (HEVs), the power network takes an ever-important role, which functions to adjust the engine operating region for less emissions, to incorporate the electric machine for higher overall efficiency, and to feed the increasing demand of electric loads with different voltage levels. Furthermore, more and more mechanically, pneumatically or hydraulically driven systems are gradually superseded by electrically driven systems. In this paper, the key issues, the main components, the powertrain arrangements and the voltage levels of the power network in HEVs are discussed.

show abstract

Power Consumption and Conversion of EPS Systems

Cited by 17 publications

References 0 publications

Impact of DC 48 V on Automotive Power Supply Systems: Comparison with DC 42 V and Future View under DC 60 V

Impact of DC 48 V on Automotive Power Supply Systems: Comparison with DC 42 V and Future View under DC 60 V

Torque Ripple Reduction of a PM Synchronous Motor for Electric Power Steering using a Low Resolution Position Sensor

Overview of Power Networks in Hybrid Electric Vehicles

Contact Info

Product

Resources

About