Method and electronic system for the automatic management of the energy autonomy of a vehicle particularly of electric vehicles
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B60L-015/20
B60L-011/18
B60L-015/02
출원번호
US-0985609
(2012-03-08)
등록번호
US-9120395
(2015-09-01)
우선권정보
IT-MI2011A0393 (2011-03-11)
국제출원번호
PCT/IB2012/051090
(2012-03-08)
§371/§102 date
20131021
(20131021)
국제공개번호
WO2012/123862
(2012-09-20)
발명자
/ 주소
Santucci, Mario
Di Tanna, Onorino
Savaresi, Sergio
Tanelli, Mara
Dardanelli, Andrea
Picasso, Bruno
출원인 / 주소
PIAGGIO & C. S.p.A.
대리인 / 주소
Kilyk & Bowersox, P.L.L.C.
인용정보
피인용 횟수 :
1인용 특허 :
1
초록▼
A method is described for the automatic management of the energy autonomy of a vehicle, and includes receiving a signal for indicating a distance and/or a path to cover, and dividing the distance and/or the path into space intervals; calculating an allowable variation of energy capacity in a space i
A method is described for the automatic management of the energy autonomy of a vehicle, and includes receiving a signal for indicating a distance and/or a path to cover, and dividing the distance and/or the path into space intervals; calculating an allowable variation of energy capacity in a space interval based on energy capacity detected by the sensors and on variation laws of the energy capacity; determining limit conditions for the speed and/or acceleration of the vehicle, on the basis of a map, chosen among a plurality of maps of speed-acceleration-variation of energy capacity; generating a regulated instantaneous torque request on the basis of the speed and/or acceleration detected by the plurality of sensors, of the determined limit conditions for the speed and/or acceleration and of the instantaneous torque request generated by the first central control unit. An electronic system capable of implementing such a method is described.
대표청구항▼
1. A method (100) for the automatic management of the energy autonomy of a vehicle of the type comprising a torque-controllable motor (21), a plurality of sensors (22) for the instantaneous measurement of a plurality of drive parameters and of energy capacity (C) of said vehicle, and a first central
1. A method (100) for the automatic management of the energy autonomy of a vehicle of the type comprising a torque-controllable motor (21), a plurality of sensors (22) for the instantaneous measurement of a plurality of drive parameters and of energy capacity (C) of said vehicle, and a first central control unit (23) coupled with said motor (21), capable of generating an instantaneous torque request (md) on the basis of a request of a user, wherein the method (100) comprises phases of: receiving (101) from a user interface means (11) a signal for indicating a distance and/or a path to cover, and dividing such distance and/or said path into a plurality of space intervals;calculating (102) an allowable variation of energy capacity (ΔC) in a space interval on the basis of an energy capacity (C) detected by said plurality of sensors (22) and on the basis of variation laws of said energy capacity (C);determining (103) limit conditions for the speed and/or acceleration of said vehicle (20) on the basis of a map, chosen among a plurality of maps of speed-acceleration-variation of energy capacity, which relates the speed and the acceleration of said vehicle (20) with the variation of the calculated energy capacity (ΔC);generating (110) a regulated instantaneous torque request (m) on the basis of the speed and/or acceleration detected by said plurality of sensors (22), of said determined limit conditions for the speed and/or acceleration and of said instantaneous torque request (md) generated by said first central control unit (23), wherein said generating phase (110) of a regulated instantaneous torque request (m) comprises phases of:determining (111) a reference torque request (mc) on the basis of current values of speed and/or acceleration detected by said plurality of sensors (22);receiving (112) from said first central control unit (23) an instantaneous torque request (md) corresponding to a request made by the user;verifying (113) that the current values of speed and/or acceleration detected by said plurality of sensors (22) meet said determined limit conditions for the speed and/or acceleration;if said limit conditions for the speed and/or acceleration are met, determining (114) a regulated instantaneous torque request (m) equal to the instantaneous torque request (md);if said limit conditions for the speed and/or acceleration are not met, comparing (115) said reference torque request (mc) with said instantaneous torque request (md);in case said instantaneous torque request (md) is lower than said reference torque request (mc), determining (114) a regulated instantaneous torque request (m) equal to said instantaneous torque request (md);in case said instantaneous torque request (md) is greater than said reference torque request (mc), generating (116) a regulated instantaneous torque request (m) equal to said reference torque request (mc). 2. The method (100) for the automatic management of the energy autonomy of a vehicle according to claim 1, characterized in that said receiving phase (101) further comprises a phase comprising receiving a plurality of altimetric data relating to said distance and/or path to cover. 3. The method (100) for the automatic management of the energy autonomy of a vehicle according to claim 1, characterized in that the method further comprises phases of: controlling (131) the coherence of said indicated distance and/or path to cover in light of said energy capacity (C) detected by said plurality of sensors (22),sending (132) a warning signal in case of a negative result of said phase of control of coherence (131), that is when said detected energy capacity (C) is deemed to be insufficient to ensure the run of said indicated distance and/or path to cover. 4. The method (100) for the automatic management of the energy autonomy of a vehicle according to claim 1, characterized in that said plurality of speed-acceleration-variation of energy capacity maps is obtained on the basis of experimental data and/or mathematical models which relate the power delivered by said torque-controllable motor (21) with said speed and said acceleration of the vehicle detected by said plurality of sensors (22). 5. The method (100) for the automatic management of the energy autonomy of a vehicle according to claim 4, characterized in that, in case said torque-controllable motor (21) is an electric motor and said energy capacity (C) is a load state (ξ) of a battery of said electric motor, the method further comprises phases of: building a first map of speed-acceleration-power (VAP) delivered by said battery, wherein the delivered power Pbatt=f(v, a) is a function both of the speed and of the acceleration on the basis of measurements made on board of said vehicle (20) processed through a digital filtering of data;determining a second map of speed-acceleration-variation of energy capacity (VAV);obtaining level curves of speed-acceleration in function of said energy capacity variation. 6. The method (100) for the automatic management of the energy autonomy of a vehicle according to claim 5, characterized in that said digital filtering of data is a speed and acceleration filtering of the low-pass type, with a cutting frequency between 0.1 and 0.5 Hz. 7. The method (100) for the automatic management of the energy autonomy of a vehicle according to claim 5, further comprising a phase of generating and sending at least one information signal comprised in the group of: covered distance,consumed energy capacity,speed of said vehicle, andvalue of the limitation introduced by said regulated instantaneous torque request (m). 8. The method (100) for the automatic management of the energy autonomy of a vehicle according to claim 1, characterized in that said limit conditions for the speed and acceleration of said vehicle (20) are generated by using digital filters capable of making the regulations gradual and as much as possible unperceivable for said user. 9. A computer program directly chargeable in the internal memory of a digital computer, comprising code portions for implementing a method (100) for the automatic management of the energy autonomy of a vehicle when said program is actuated by said computer, wherein said method is capable of generating an instantaneous torque request (md) on the basis of a request of a user for a vehicle of the type comprising a torque-controllable motor (21), a plurality of sensors (22) for the instantaneous measurement of a plurality of drive parameters and of energy capacity (C) of said vehicle, and a first central control unit (23) coupled with said motor (21), wherein the method (100) comprises phases of: receiving (101) from a user interface means (11) a signal for indicating a distance and/or a path to cover, and dividing such distance and/or said path into a plurality of space intervals;calculating (102) an allowable variation of energy capacity (ΔC) in a space interval on the basis of an energy capacity (C) detected by said plurality of sensors (22) and on the basis of variation laws of said energy capacity (C);determining (103) limit conditions for the speed and/or acceleration of said vehicle (20) on the basis of a map, chosen among a plurality of maps of speed-acceleration-variation of energy capacity, which relates the speed and the acceleration of said vehicle (20) with the variation of the calculated energy capacity (ΔC);generating (110) a regulated instantaneous torque request (m) on the basis of the speed and/or acceleration detected by said plurality of sensors (22), of said determined limit conditions for the speed and/or acceleration and of said instantaneous torque request (ma generated by said first central control unit (23), wherein said generating phase (110) of a regulated instantaneous torque request (m) comprises phases of:determining (111) a reference torque request (mc) on the basis of current values of speed and/or acceleration detected by said plurality of sensors (22);receiving (112) from said first central control unit (23) an instantaneous torque request (md) corresponding to a request made by the user;verifying (113) that the current values of speed and/or acceleration detected by said plurality of sensors (22) meet said determined limit conditions for the speed and/or acceleration;if said limit conditions for the speed and/or acceleration are met, determining (114) a regulated instantaneous torque request (m) equal to the instantaneous torque request (md);if said limit conditions for the speed and/or acceleration are not met, comparing (115) said reference torque request (mc) with said instantaneous torque request (md);in case said instantaneous torque request (md) is lower than said reference torque request (mc), determining (114) a regulated instantaneous torque request (m) equal to said instantaneous torque request (md);in case said instantaneous torque request (md) is greater than said reference torque request (mc), generating (116) a regulated instantaneous torque request (m) equal to said reference torque request (mc). 10. An electronic system (10) for the automatic management of the energy autonomy of a vehicle of the type comprising a torque-controllable motor (21), a plurality of sensors (22) for the instantaneous measurement of a plurality of drive parameters and of energy capacity of said vehicle, a data network capable of transmitting digital and/or analog signals, a first central control unit (23) coupled with said motor (21), capable of generating an instantaneous torque request (md) on the basis of a request of a user, wherein said electronic system (10) for the automatic management of the energy autonomy of a vehicle comprises: a user interface means (11) capable of transmitting a signal indicating a distance and/or a path to cover by said user;a second central control unit (12) connected to said interface means (11) in order to receive a signal indicating a distance and/or a path to cover, said second central control unit (12) being capable of generating a regulated instantaneous torque request (m) on the basis of said indicated distance and/or path to cover, of the speed and/or acceleration and of the energy capacity (C) detected by said plurality of sensors (22) and of said instantaneous torque request (md) generated by said first central control unit (23). 11. The electronic system (10) for the automatic management of the energy autonomy of a vehicle according to claim 10, characterized in that said second central control unit (12) comprises: a supervision unit (13) capable of calculating, in real time and at the initial point of each interval among a plurality of space intervals which said indicated distance and/or path to cover is fractioned in, an allowable variation of energy capacity (ΔC of said motor (21), on the basis of the values of energy capacity (C) detected by said plurality of sensors (22);an optimization unit (17) capable of determining limit conditions for the speed and/or acceleration which said vehicle (20) must respect within the nearest space interval, on the basis of a plurality of speed-acceleration-variation of energy capacity maps;memory means (14) connected to said optimizing unit (17);a closed-loop regulator (15) capable of determining a reference torque request (mc) on the basis of current speed and/or acceleration values detected by said plurality of sensors (22);a selector unit (16) capable of verifying that the speed and/or acceleration values detected by the plurality of sensors (22) meet said limit conditions for the speed and/or acceleration determined by the optimization unit (17), and of comparing said reference torque request (mc) with said instantaneous torque request (md). 12. The electronic system (10) for the automatic management of the energy autonomy of a vehicle according to claim 10, characterized in that said user interface means (11) comprises a supervision unit (13) capable of calculating, in real time and at the initial point of each interval among a plurality of space intervals which said indicated distance and/or said path to cover are fractioned in, an allowable variation of energy capacity (ΔC) of said motor (21), on the basis of the values of energy capacity (C) detected by said plurality of sensors (22). 13. The electronic system (10) for the automatic management of the energy autonomy of a vehicle according to claim 10, comprising two wireless transceiver means (31, 32) respectively associated, the first one (31) with said interface means (11) and the second one (32) with said second central control unit (12). 14. The electronic system (10) for the automatic management of the energy autonomy of a vehicle according to claim 10, characterized in that said interface means (11) is integrated in said vehicle (20) and is connected to said second central control unit (12). 15. The electronic system (10) for the automatic management of the energy autonomy of a vehicle according to claim 10, characterized in that said interface means (11) is a mobile terminal capable of communicating with said second central control unit (12) according to the Bluetooth standard. 16. The electronic system (10) for the automatic management of the energy autonomy of a vehicle according to claim 10, characterized in that said interface means (11) comprises memory means for registering road maps and altimetric data, and software means capable of generating said signal for the indication of said distance and/or said path on the basis of said maps and of the requests by said user.
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이 특허에 인용된 특허 (1)
Moroto Shuzo,JPX ; Hisada Hideki,JPX, Hybrid vehicle with battery charge control relative to a driving route.
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