Driving assistant method and system for electric vehicle
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G08B-021/00
B60W-050/14
G01C-021/34
B60W-040/12
B60W-050/00
출원번호
US-0082421
(2011-04-08)
등록번호
US-9108643
(2015-08-18)
우선권정보
TW-100103461 A (2011-01-28)
발명자
/ 주소
Tsai, I-Ta
Lin, Yu-Hui
Wu, Cheng-Yu
Lin, Yi-Chun
Chang, Channing
출원인 / 주소
Industrial Technology Research Institute
대리인 / 주소
Jianq Chyun IP Office
인용정보
피인용 횟수 :
1인용 특허 :
4
초록▼
A driving assistant method for an electric vehicle is provided with the following steps. When the electric vehicle is started up, a battery energy safe driving region is calculated and displayed. The battery energy safe driving region is updated dynamically according to vehicle information. The vehi
A driving assistant method for an electric vehicle is provided with the following steps. When the electric vehicle is started up, a battery energy safe driving region is calculated and displayed. The battery energy safe driving region is updated dynamically according to vehicle information. The vehicle information includes battery information of the electric vehicle.
대표청구항▼
1. A driving assistant method for an electric vehicle, comprising: when the electric vehicle is started up, calculating and displaying a battery energy safe driving region of the electric vehicle according to driving information of the electric vehicle, wherein the driving information comprises batt
1. A driving assistant method for an electric vehicle, comprising: when the electric vehicle is started up, calculating and displaying a battery energy safe driving region of the electric vehicle according to driving information of the electric vehicle, wherein the driving information comprises battery information of the electric vehicle; anddynamically updating the battery energy safe driving region according to the driving information of the electric vehicle, wherein a method of defining the battery energy safe driving region comprises: selecting at least one electricity supplying station;calculating energy consumption per unit distance of the electric vehicle and taking the at least one electricity supplying station as a center to calculate a region that the electric vehicle is capable of returning back to the at least one electricity supplying station under a current battery energy according to the energy consumption per unit distance of the electric vehicle to serve as at least one safe coverage region; anduniting the safe coverage regions with each other to obtain a united region to serve as the battery energy safe driving region when an amount of the at least one safe coverage region is larger than one,wherein the energy consumption P′ per unit distance of the electric vehicle is obtained according to an equation P′=P/ki,wherein P is energy consumption per unit distance obtained according to data of original equipment manufacturer of the electric vehicle, ki is a vehicle status-related electricity consumption coefficient. 2. The driving assistant method for the electric vehicle as claimed in claim 1, the battery energy safe driving region is a region in which the electric vehicle is capable of driving randomly without leading an incapability for electricity supplying. 3. The driving assistant method for the electric vehicle as claimed in claim 1, wherein the step of selecting the at least one electricity supplying station comprises: setting a selection region; andsearching and obtaining the at least one electricity supplying station within the selection region. 4. The driving assistant method for the electric vehicle as claimed in claim 3, wherein the step of setting the selection region comprises specifying the selection region. 5. The driving assistant method for the electric vehicle as claimed in claim 3, wherein the step of setting the selection region comprises determining the selection region according to a position and speed information of the electric vehicle. 6. The driving assistant method for the electric vehicle as claimed in claim 3, wherein the step of setting the selection region comprises determining the selection region according to a position, a moving direction and speed information of the electric vehicle. 7. The driving assistant method for the electric vehicle as claimed in claim 1, further comprising: when a position of the electric vehicle exceeds the battery energy safe driving region, displaying a battery energy warning driving region of the electric vehicle, and displaying at least one electricity supplying station within the battery energy warning driving region, wherein the battery energy warning driving region is defined as a maximum region outside the battery energy safe driving region capable of being reached by the electric vehicle; anddynamically updating the battery energy warning driving region according to the driving information. 8. The driving assistant method for the electric vehicle as claimed in claim 7, wherein a method of determining the battery energy safe driving region and the battery energy warning driving region comprises: selecting at least one electricity supplying station;taking the at least one electricity supplying station as a center to calculate a region that the electric vehicle is capable of returning back to the at least one electricity supplying station under a current battery energy according to the driving information to serve as at least one safe coverage region, and calculate a maximum region capable of being reached by the electric vehicle to serve as at least one warning coverage region; anduniting the safe coverage regions with each other to obtain a united region to serve as the battery energy safe driving region when an amount of the at least one safe coverage region is larger than one, and uniting the warning coverage regions with each other to obtain a united region to serve as the battery energy warning driving region when an amount of the at least one warning coverage region is larger than one. 9. The driving assistant method for the electric vehicle as claimed in claim 5, wherein the step of setting the selection region comprises: determining a center of the selection region according to the position and a moving direction of the electric vehicle; andcalculating a radius of the selection region according to the battery information and speed information of the electric vehicle. 10. The driving assistant method for the electric vehicle as claimed in claim 1, wherein the driving information comprises at least one of weight information, positioning information, map information and traffic information of the electric vehicle. 11. The driving assistant method for the electric vehicle as claimed in claim 1, wherein the battery information comprises at least one of electricity consumption status information, remained battery energy information and battery aging information of the electric vehicle. 12. The driving assistant method for the electric vehicle as claimed in claim 10, wherein the map information comprises terrain information. 13. The driving assistant method for the electric vehicle as claimed in claim 10, wherein the traffic information comprises real-time traffic information. 14. A driving assistant method for an electric vehicle, comprising: a electricity supplying station selecting step, for setting a selection region comprising at least one electricity supplying station for the electric vehicle, and finding the at least one electricity supplying station within the selection region;a coverage region calculating step, for calculating energy consumption per unit distance of the electric vehicle according to driving information of the electric vehicle, and taking the at least one electricity supplying station as a center to estimate a region that the electric vehicle is capable of returning back along different directions under a current battery energy according to the energy consumption per unit distance of the electric vehicle to serve as at least one safe coverage region, and estimate a region capable of being reached by the electric vehicle to serve as at least one warning coverage region, and uniting the safe coverage regions with each other to obtain a battery energy safe driving region when an amount of the at least one safe coverage region is larger than one, and uniting the warning coverage regions with each other to obtain a battery energy warning driving region when an amount of the at least one warning coverage region is larger than one;a dynamic updating step, for dynamically updating the battery energy safe driving region and the battery energy warning driving region according to the driving information; anda display step, for displaying the updated battery energy safe driving region, and the updated battery energy warning driving region,wherein the energy consumption P′ per unit distance of the electric vehicle is obtained according to an equation P′=P/ki,wherein P is energy consumption per unit distance obtained according to data of original equipment manufacturer of the electric vehicle, ki is a vehicle status-related electricity consumption coefficient. 15. The driving assistant method for the electric vehicle as claimed in claim 14, wherein the step of setting the selection region comprises specifying the selection region. 16. The driving assistant method for the electric vehicle as claimed in claim 14, wherein the step of setting the selection region comprises: determining a center of the selection region according to a current position and a moving direction of the electric vehicle; andcalculating a radius of the selection region according to battery information and speed information of the electric vehicle. 17. The driving assistant method for the electric vehicle as claimed in claim 14, wherein the step of setting the selection region comprises: taking a current position of the electric vehicle as a center of the selection region; andcalculating a radius of the selection region according to battery information and speed information of the electric vehicle. 18. The driving assistant method for the electric vehicle as claimed in claim 14, wherein the vehicle status-related electricity consumption coefficient ki is a battery aging electricity consumption coefficient. 19. The driving assistant method for the electric vehicle as claimed in claim 14, wherein the vehicle status-related electricity consumption coefficient ki is a product of at least one of a battery aging electricity consumption coefficient, a weight electricity consumption coefficient and a speed electricity consumption coefficient. 20. The driving assistant method for the electric vehicle as claimed in claim 14, wherein a method of estimating the at least one safe coverage region and the at least one warning coverage region comprises: taking the at least one electricity supplying station as a center to estimate at least one effective distance of the electric vehicle along different directions deffect=e×Q×(1-ko)P′, wherein Q is current remained battery energy, ko is an environment-affected electricity consumption coefficient, and e is a returning back parameter, 0
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이 특허에 인용된 특허 (4)
Takahira Yoshikazu (Saitama JPX) Ogawa Tomoko (Saitama JPX) Kanayama Shinichiro (Saitama JPX), Display device for electric vehicle.
Hyde, Roderick A.; Kare, Jordin T.; Tuckerman, David B.; Weaver, Thomas Allan; Wood, Jr., Lowell L., System and method for predictive control of an energy storage system for a vehicle.
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