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4-Traders Homepage  >  Equities  >  KOREA EXCHANGE  >  Samsung SDI Co Ltd    006400   KR7006400006

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Samsung SDI : Patent Issued for System for Controlling Driving of Electric Vehicle and Method of the Same (USPTO 9387775)

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07/21/2016 | 10:56pm CEST

By a News Reporter-Staff News Editor at Electronics Newsweekly -- Samsung SDI Co., Ltd. (Gyeonggi-do, KR) has been issued patent number 9387775, according to news reporting originating out of Alexandria, Virginia, by VerticalNews editors.

The patent's inventors are Baek, Woon-Seong (Yongin-si, KR); Ji, Se-Jin (Yongin-si, KR); Kim, Sang-Kyou (Yongin-si, KR); Jeong, Hyeon-Cheol (Yongin-si, KR).

This patent was filed on April 2, 2015 and was published online on July 12, 2016.

From the background information supplied by the inventors, news correspondents obtained the following quote: "The described technology generally relates to a system for controlling driving of an electric vehicle and a method of the same.

"Despite the shortage of petroleum resources in the world, oil consumption is increasing and restrictions have been placed on the use of fossil fuels which produce pollution. Research has been conducted on electric powered vehicles in contrast to traditional automobiles which are powered by gasoline engines.

"The standard electric vehicle has a driving motor that operates using power received from a rechargeable, or secondary, battery. Such electric vehicles may include a control function where the battery is not used when an under voltage protection (UVP) mode is activated due to the battery voltage decreasing to less than a predetermined level. When the UVP mode of the battery is activated, the electric vehicle cannot be driven."

Supplementing the background information on this patent, VerticalNews reporters also obtained the inventors' summary information for this patent: "One inventive aspect is a system for controlling driving of an electric vehicle and a method of the same to extend the maximum drivable distance of the electric vehicle.

"Another aspect is a system for controlling driving of an electric vehicle including a remaining capacity calculator calculating remaining battery capacity and a controller controlling the magnitude of output current output to a driving unit of an electric vehicle to be a predetermined current limit value or less when the remaining battery capacity reaches a predetermined value.

"The current limit value may be a current value enabling the electric vehicle to move a maximum distance.

"A driving distance calculator may be further included. The driving distance calculator may calculate a possible driving distance of the electric vehicle when the electric vehicle is driven with the current limit value using the remaining battery capacity.

"A navigation unit may be further included. The navigation unit may determine the location of the electric vehicle and the location of a peripheral charging station.

"The controller may limit the magnitude of the output current to the current limit value when the remaining battery capacity reaches a level of remaining capacity enabling for driving to the charging station close to the electric vehicle.

"The controller may calculate a remaining distance to the charging station using the location of the electric vehicle and the location of the charging station, and if the difference between a possible driving distance based on the remaining battery capacity and the remaining distance is within a predetermined value, the magnitude of the output current may be limited to the current limit value.

"The navigation unit may further obtain information such as an altitude, a gradient, etc. of a route from the location of the electric vehicle to the location of the charging station.

"The driving distance calculator may calculate the possible driving distance of the electric vehicle further using the information such as the altitude, the gradient, etc. of the route.

"A weight measurement unit measuring a weight of the electric vehicle may be further included. The driving distance calculator may calculate the possible driving distance of the electric vehicle by considering the weight of the electric vehicle.

"A display unit may be further included. The display unit may display at least one of the possible driving distance, the remaining distance and the remaining battery capacity.

"The controller may send a call signal to a charging company or a towing company for the battery when the charging station is not found within the possible driving distance.

"The call signal may include at least one of the current location of the electric vehicle and the location of the electric vehicle after the electric vehicle has moved the possible driving distance.

"Another aspect is a method for controlling driving of an electric vehicle including calculating a remaining battery capacity, determining whether the remaining battery capacity has reached a predetermined value, and controlling a magnitude of an output current output to a driving unit of an electric vehicle to be a predetermined current limit value and less when the remaining battery capacity reaches the predetermined value.

"When a remaining battery capacity of an electric vehicle falls to a predetermined value and less, the electric vehicle may be able to move a maximum distance.

"The electric vehicle may also move to a charging station by finding a charging station near current location of the electric vehicle and limiting an output current.

"Another aspect is a system for controlling driving of an electric vehicle including a motor, the system comprising a battery configured to output a driving current to the motor; a battery capacity calculator configured to determine the remaining battery capacity of the battery; and a controller configured to limit the driving current to a predetermined current limit value or less when the remaining battery capacity reaches a first predetermined value.

"The current limit value can be a current value that enables the electric vehicle to travel a maximum distance. The system can further comprise a driving distance calculator configured to calculate an estimated maximum distance of the electric vehicle based on the remaining battery capacity and the current limit value. The system can further comprise a navigation unit configured to determine the location of the electric vehicle and the location of one or more nearby charging stations. The controller can be further configured to limit the driving current to the current limit value when the remaining battery capacity reaches a minimum capacity sufficient for the electric vehicle to reach the charging station. The controller can be further configured to i) calculate the remaining distance to the charging station based on the location of the electric vehicle and the location of the charging station and ii) limit the driving current to the current limit value when the difference between the estimated maximum distance and the remaining distance is less than a second predetermined value.

"The navigation unit can be further configured to obtain information on the altitude and the gradient of a route between the location of the electric vehicle and the charging station. The driving distance calculator can be further configured to calculate the estimated maximum distance of the electric vehicle further based on the altitude and the gradient of the route. The system can further comprise a weight measurement unit configured to measure the weight of the electric vehicle, wherein the driving distance calculator is further configured to calculate the estimated maximum distance of the electric vehicle based on the measured weight of the electric vehicle. The system can further comprise a display unit configured to display at least one of the estimated maximum distance, the remaining distance and the remaining battery capacity. The controller can be configured to transmit a call signal to vehicle assistance service when the charging station is not found within the estimated maximum distance. The call signal can include at least one of the location of the electric vehicle and a predicted location of the electric vehicle based on the estimated maximum distance.

"Another aspect is an electric vehicle comprising a motor; and a control system including: a battery configured to output a driving current to the motor; a battery capacity calculator configured to determine the remaining battery capacity of the battery; and a controller configured to limit the driving current to a predetermined current limit value when the remaining battery capacity is less than a threshold.

"The control system can further include a driving distance calculator configured to calculate an estimated maximum distance of the electric vehicle based on the remaining battery capacity. The control system can further include a navigation unit configured to determine the location of the electric vehicle and the location of one or more charging stations within the estimated maximum distance from the location of the electric vehicle. The control system can further include a display configured to display the locations of the charging stations. The navigation unit can be further configured to obtain information on the altitude and the gradient of a plurality of routes between the electric vehicle and the respective charging stations and wherein the controller is further configured to select one of the charging stations based on the distances from the electric vehicle to the charging stations, the changes in altitude from the electric vehicle to the charging stations and the gradients of the of the routes between the electric vehicle and the charging stations. The driving distance calculator can be further configured to calculate the estimated maximum distance of the electric vehicle further based on the altitudes and the gradients of the routes. The controller can be further configured to limit the driving current to the predetermined value when the remaining battery capacity reaches a minimum capacity sufficient for the electric vehicle to reach at least one of the charging stations. The control system can further include a weight measurement unit configured to measure the weight of the electric vehicle and the driving distance calculator can be further configured to calculate the estimated maximum distance of the electric vehicle based on the measured weight of the electric vehicle."

For the URL and additional information on this patent, see: Baek, Woon-Seong; Ji, Se-Jin; Kim, Sang-Kyou; Jeong, Hyeon-Cheol. System for Controlling Driving of Electric Vehicle and Method of the Same. U.S. Patent Number 9387775, filed April 2, 2015, and published online on July 12, 2016. Patent URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=9387775.PN.&OS=PN/9387775RS=PN/9387775

Keywords for this news article include: Electronic Equipment Companies.

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2016, NewsRx LLC

(c) 2016 NewsRx LLC, source Technology Newsletters

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Financials ( KRW)
Sales 2016 5 569 B
EBIT 2016 -690 B
Net income 2016 333 B
Finance 2016 1 150 B
Yield 2016 0,97%
P/E ratio 2016 24,06
P/E ratio 2017 22,58
EV / Sales 2016 1,13x
EV / Sales 2017 1,04x
Capitalization 7 452 763 M
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Mean consensus OUTPERFORM
Number of Analysts 35
Average target price 129 536  KRW
Spread / Average Target 20%
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NameTitle
Nam-Sung Cho President, Chief Executive Officer & Director
Gwang-Il Kim Executive Director & Head-Production Technology
Min-Gee No Outside Director
Sung-Jae Kim Outside Director
Young-Sik Kim Director & Head-Management Support
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