Electric vehicle extended range hybrid battery pack system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H02J-007/00
B60L-009/00
B60W-010/24
H01M-010/44
H01M-010/50
B60L-011/18
H01M-016/00
H02J-007/14
H01M-012/06
출원번호
US-0787421
(2013-03-06)
등록번호
US-8803470
(2014-08-12)
발명자
/ 주소
Stewart, Sarah G.
Kohn, Scott Ira
Kelty, Kurt Russell
Straubel, Jeffrey Brian
출원인 / 주소
Tesla Motors, Inc.
대리인 / 주소
Soderberg, J. Richard
인용정보
피인용 횟수 :
1인용 특허 :
17
초록▼
A power source comprised of a first battery pack (e.g., a non-metal-air battery pack) and a second battery pack (e.g., a metal-air battery pack) is provided, wherein the second battery pack is used when the user selects an extended range mode of operation. Minimizing use of the second battery pack p
A power source comprised of a first battery pack (e.g., a non-metal-air battery pack) and a second battery pack (e.g., a metal-air battery pack) is provided, wherein the second battery pack is used when the user selects an extended range mode of operation. Minimizing use of the second battery pack prevents it from undergoing unnecessary, and potentially lifetime limiting, charge cycles.
대표청구항▼
1. A method of extending driving range of an electric vehicle, the electric vehicle including at least a first battery pack and a second battery pack, wherein the first and second battery packs are comprised of different battery types, the method comprising the steps of: providing means for selectin
1. A method of extending driving range of an electric vehicle, the electric vehicle including at least a first battery pack and a second battery pack, wherein the first and second battery packs are comprised of different battery types, the method comprising the steps of: providing means for selecting between a normal mode of operation and an extended range mode of operation;wherein when said extended range mode of operation is selected, the method further comprises the steps of supplying vehicle operational power to the electric vehicle from the first battery pack and from the second battery pack; andwherein when said normal mode of operation is selected, the method further comprises the steps of supplying vehicle operational power to the electric vehicle from the first battery pack and not from the second battery pack. 2. The method of claim 1, wherein said first battery pack is comprised of a plurality of non-metal-air cells and said second battery pack is comprised of a plurality of metal-air cells. 3. The method of claim 1, wherein said means for selecting between said normal mode of operation and said extended range mode of operation is integrated within a user interface corresponding to said electric vehicle. 4. The method of claim 1, wherein said means for selecting between said normal mode of operation and said extended range mode of operation is integrated within a navigation system corresponding to said electric vehicle. 5. The method of claim 1, wherein when said normal mode of operation is selected, the method further comprises the steps: a) determining a current state-of-charge (SOC) of the first battery pack;b) comparing said current SOC of the first battery pack with a first preset minimum SOC, wherein if said current SOC of the first battery pack is greater than said first preset minimum SOC said method returns to step a), and wherein if said current SOC of the first battery pack is less than said first preset minimum SOC said method further comprises the step of:c) supplying vehicle operational power to the electric vehicle from both the first battery pack and the second battery pack. 6. The method of claim 5, wherein prior to step b) said method further comprises the steps of: a2) comparing said current SOC of the first battery pack with a second preset minimum SOC, wherein said first preset minimum SOC is greater than said second preset minimum SOC, wherein if said current SOC of the first battery pack is less than said second preset minimum SOC said method skips to step c), and wherein if said current SOC of the first battery pack is greater than said second preset minimum SOC said method performs step b). 7. The method of claim 5, wherein prior to step c) said method further comprises the steps of: b2) determining a current SOC of the second battery pack;b3) comparing said current SOC of the second battery pack with a second preset minimum SOC, wherein if said current SOC of the second battery pack is greater than said second preset minimum SOC said method continues to step c), and wherein if said current SOC of the second battery pack is less than said second preset minimum SOC said method further comprises the steps of: i) comparing said current SOC of the first battery pack with a second preset minimum SOC, wherein said first preset minimum SOC is greater than said second preset minimum SOC, wherein if said current SOC of the first battery pack is greater than said second preset minimum SOC said method returns to step a), and wherein if said current SOC of the first battery pack is less than said second preset minimum SOC said method further comprises the step of terminating vehicle operation. 8. The method of claim 1, wherein when said extended range mode of operation is selected, the method further comprises the steps: a) determining a current SOC of the second battery pack;b) comparing said current SOC of the second battery pack with a first preset minimum SOC, wherein if said current SOC of the second battery pack is greater than said first preset minimum SOC, charging of the first battery pack by the second battery pack continues, and wherein if said current SOC of the second battery pack is less than said first preset minimum SOC said method further comprises the steps of:c) terminating use of the second battery pack to supply vehicle operational power to the electric vehicle;d) determining a current SOC of the first battery pack;e) comparing said current SOC of the first battery pack with a second preset minimum SOC, wherein if said current SOC of the first battery pack is greater than said second preset minimum SOC said method returns to step a), and wherein if said current SOC of the first battery pack is less than said second preset minimum SOC said method further comprises the step of terminating vehicle operation.
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이 특허에 인용된 특허 (17)
Gartstein Vladimir ; Nebrigic Dragan Danilo, Battery having a built-in controller.
Davis, Scott William; Connolly, Thomas R.; Zou, Zhanjiano; Nellums, Richard A., Electric vehicle (EV) driving mode optimization for a parallel hybrid electric vehicle.
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