Motor vehicle controller and method of controlling a motor vehicle
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02D-017/04
F02D-041/04
F02N-011/08
F02D-035/02
F02D-029/02
B60W-030/18
B60K-006/48
출원번호
US-0375214
(2013-01-30)
등록번호
US-10024249
(2018-07-17)
우선권정보
GB-1201532.7 (2012-01-30)
국제출원번호
PCT/IB2013/050791
(2013-01-30)
국제공개번호
WO2013/114298
(2013-08-08)
발명자
/ 주소
Hancock, Matthew
Robinson, Guy
출원인 / 주소
JAGUAR LAND ROVER LIMITED
대리인 / 주소
Carlson, Gaskey & Olds
인용정보
피인용 횟수 :
0인용 특허 :
7
초록▼
Embodiments of the invention relate to a motor vehicle controller operable automatically to stop and subsequently to restart an engine of a vehicle according to a prescribed control methodology. The controller is operable automatically to adjust an engine stop delay parameter in dependence on the va
Embodiments of the invention relate to a motor vehicle controller operable automatically to stop and subsequently to restart an engine of a vehicle according to a prescribed control methodology. The controller is operable automatically to adjust an engine stop delay parameter in dependence on the value of at least one vehicle endurance parameter. The engine stop delay parameter corresponds to a period for which the engine of the vehicle remains switched on when it is determined that a condition exists allowing the engine to be switched off during the course of a drive cycle. The value of the endurance parameter is responsive to stop/start operations being performed during the course of a drive cycle. The controller is operable to adjust the engine stop delay parameter to prevent the value of the endurance parameter exceeding a prescribed maximum endurance value before a prescribed time period elapses.
대표청구항▼
1. A motor vehicle controller configured to automatically stop and subsequently to restart an engine of a vehicle according to a prescribed control methodology, wherein the controller is configured to automatically adjust an engine stop delay parameter in dependence on the value of one or more vehic
1. A motor vehicle controller configured to automatically stop and subsequently to restart an engine of a vehicle according to a prescribed control methodology, wherein the controller is configured to automatically adjust an engine stop delay parameter in dependence on the value of one or more vehicle endurance parameters, wherein at least one of the vehicle endurance parameters is indicative of a number of stop/start operations performed by the vehicle, the engine stop delay parameter corresponding to a time period defining for how long the engine of the vehicle is to remain switched on from when it is determined that a condition exists allowing the engine to be switched off during the course of a drive cycle, and the value of the at least one vehicle endurance parameter being responsive to stop/start operations being performed during the course of a drive cycle;wherein the controller is configured to reference a prescribed time period or distance; wherein the controller is configured to adjust the engine stop delay parameter time period to prevent the value of the at least one vehicle endurance parameter exceeding a prescribed maximum endurance value within the referenced prescribed time period or distance, andwherein the controller is configured to start the engine stop delay parameter time period from a first determination that the condition exists allowing the engine to be switched off, and to command the engine to be stopped upon expiry of the engine stop delay parameter time period, the expiry occurring while the condition exists allowing the engine to be switched off as determined by the first determination, and before the condition allowing the engine to be switched off as determined by the first determination ceases to exist. 2. A controller as claimed in claim 1 wherein the controller is configured to automatically adjust the engine stop delay parameter when the value of the at least one vehicle endurance parameter exceeds a prescribed threshold value. 3. A controller as claimed in claim 1 wherein the controller is configured to automatically adjust the engine stop delay parameter according to a closed loop feedback methodology so that the value of the at least one endurance parameter tends towards the prescribed maximum value at the end of the prescribed time period. 4. A controller as claimed in claim 3 wherein the closed loop feedback methodology is configured to implement a proportional-integral-differential (PID) control methodology. 5. A controller as claimed in claim 1 wherein the at least one vehicle endurance parameter corresponds to the cumulative number of stop/start operations performed by the vehicle, the controller being configured to increase the engine stop delay parameter in order to prevent the value of the at least one vehicle endurance parameter exceeding the prescribed maximum value at the end of the prescribed time period. 6. A motor vehicle controller configured to automatically stop and subsequently to restart an engine of a vehicle according to a prescribed control methodology, wherein the controller is configured to automatically adjust an engine stop delay parameter in dependence on the value of one or more vehicle endurance parameters, wherein at least one of the vehicle endurance parameters corresponds to an amount of one or more engine combustion products emitted by a vehicle, the engine stop delay parameter corresponding to a time period defining for how long the engine of the vehicle is to remain switched on from when it is determined that a condition exists allowing the engine to be switched off during the course of a drive cycle, and the value of the at least one vehicle endurance parameter being responsive to stop/start operations being performed during the course of a drive cycle;wherein the controller is configured to reference a prescribed time period or distance;wherein the controller is configured to start the engine stop delay parameter time period from a determination that the condition exists allowing the engine to be switched off, and to adjust the engine stop delay parameter time period to prevent the value of the at least one vehicle endurance parameter exceeding a prescribed maximum endurance value within the referenced prescribed time period or distance, andwherein the controller is configured to command the engine to be stopped upon expiry of the engine stop delay parameter time period, the expiry occurring while the condition exists allowing the engine to be switched off as determined by the first determination, and before the condition allowing the engine to be switched off as determined by the first determination ceases to exist. 7. A controller as claimed in claim 6 wherein the at least one vehicle endurance parameter corresponds to the amount of the given one or more combustion products processed by an engine after-treatment apparatus and the maximum endurance value corresponds to the maximum cumulative amount of the given one or more combustion products that may be processed by an after-treatment apparatus. 8. A controller as claimed in claim 6 wherein the at least one vehicle endurance parameter corresponds to the amount of a given one or more combustion products generated by an engine over a prescribed drive cycle. 9. A controller as claimed in claim 6 wherein the controller is configured to reduce the engine stop delay parameter in order to prevent the cumulative value of the at least one vehicle endurance parameter exceeding the prescribed maximum endurance value at the end of the prescribed time period. 10. A vehicle comprising a controller as claimed in claim 1. 11. A vehicle as claimed in claim 10 wherein the vehicle is a hybrid electric vehicle. 12. A vehicle as claimed in claim 10 wherein the vehicle is a non-hybrid vehicle. 13. A method of controlling a motor vehicle comprising automatically stopping and subsequently restarting an engine of the vehicle according to a prescribed control methodology, the method comprising; adjusting an engine stop delay parameter in dependence on the value of one or more vehicle endurance parameters, wherein at least one of the vehicle endurance parameters is indicative of a number of stop/start operations performed by the vehicle since a first time, the engine stop delay parameter corresponding to a time period defining for how long the engine of the vehicle is to remain switched on from when it is determined that a condition exists allowing the engine to be switched off during the course of a drive cycle, and the value of the at least one vehicle endurance parameter being responsive to stop/start operations being performed during the course of a drive cycle;referencing a prescribed time period or distance;adjusting the engine stop delay parameter to prevent the value of the at least one vehicle endurance parameter exceeding a prescribed maximum endurance value before the referenced prescribed time period elapses or a prescribed distance is travelled since the first time; starting the engine stop delay parameter time period from a determination that the condition exists allowing the engine to be switched off; andcommanding the engine to be stopped upon expiry of the engine stop delay parameter time period, the expiry occurring while the condition exists allowing the engine to be switched off as determined by the first determination, and before the condition allowing the engine to be switched off as determined by the first determination ceases to exist. 14. A controller as claimed in claim 1, wherein the first determination that the condition exists comprises a determination of use of a brake pedal, non-use of an accelerator pedal, or a combination thereof, and wherein the condition as determined by the first determination ceases to exist upon the next non-use of the brake pedal following the detected use of the brake pedal, the next use of the accelerator pedal following the detected non-use of the accelerator pedal, or a combination thereof. 15. A controller as claimed in claim 1, wherein the at least one vehicle endurance parameter indicative of a number of stop/start operations performed by the vehicle is a number of times the engine has started. 16. A controller as claimed in claim 1, wherein the controller is configured to perform the adjustment of the engine stop delay parameter time period to increase the time period after the first determination that the condition exists allowing the engine to be switched off, wherein the controller is configured to start the adjusted engine stop delay parameter time period from a second determination, after the first determination, that the condition exists allowing the engine to be switched off, and to command the engine to be stopped upon expiry of the adjusted engine stop delay parameter time period, the expiry occurring while the condition exists allowing the engine to be switched off as determined by the second determination, and before the condition allowing the engine to be switched off as determined by the second determination ceases to exist.
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이 특허에 인용된 특허 (7)
Sutton Loran W. (East Peoria IL), Apparatus for monitoring an internal combustion engine of a vehicle.
Baumann, Guido; Festerling, Eckhart; Mathis, Pierre; Naupari, Enrique; Ostertag, Stefan, Method and device for operating an engine start-stop function for the driving engine of a motor vehicle.
Celisse,Arnaud; Guy,Jean Emmanuel; Klein,Hervé; Levasseur,Guillaume, Method of limiting the number of times a vehicle heat engine can automatically stop and start.
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