System and method for enhancing the performance of a work vehicle
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B60W-010/04
B60W-030/184
B60W-010/06
B60W-010/10
B60W-030/188
B60W-010/11
B60W-050/00
F16H-063/50
출원번호
US-0520456
(2014-10-22)
등록번호
US-9283965
(2016-03-15)
발명자
/ 주소
Bulgrien, Garth
Krogen, Mark
출원인 / 주소
CNH Industrial America LLC
대리인 / 주소
Watson, Sue C.
인용정보
피인용 횟수 :
0인용 특허 :
13
초록▼
A method for enhancing the performance of a work vehicle may generally include storing a reference transmission torque and a reference transmission speed for a transmission of the work vehicle. At least one of the reference transmission torque or the reference transmission speed may be determined ba
A method for enhancing the performance of a work vehicle may generally include storing a reference transmission torque and a reference transmission speed for a transmission of the work vehicle. At least one of the reference transmission torque or the reference transmission speed may be determined based at least in part on drivetrain life data associated with at least one drivetrain component of the work vehicle. In addition, the method may include determining a current transmission speed for the transmission, determining a transmission output torque limit for the transmission based on the current transmission speed, the reference transmission torque and the reference transmission speed and controlling an engine of the work vehicle such that a transmission output torque of the transmission does not exceed the transmission output torque limit while the transmission is being operated at the current transmission speed.
대표청구항▼
1. A method for enhancing the performance of a work vehicle, the method comprising: storing a reference transmission torque and a reference transmission speed for a transmission of the work vehicle, at least one of the reference transmission torque or the reference transmission speed being determine
1. A method for enhancing the performance of a work vehicle, the method comprising: storing a reference transmission torque and a reference transmission speed for a transmission of the work vehicle, at least one of the reference transmission torque or the reference transmission speed being determined based at least in part on drivetrain life data associated with at least one drivetrain component of the work vehicle;determining a current transmission speed for the transmission;determining a transmission output torque limit for the transmission based on the current transmission speed, the reference transmission torque and the reference transmission speed; andcontrolling an engine of the work vehicle such that a transmission output torque of the transmission does not exceed the transmission output torque limit while the transmission is being operated at the current transmission speed. 2. The method of claim 1, wherein the drivetrain life data corresponds to a desired component life for the at least one drivetrain component, wherein the reference transmission torque corresponds to a transmission output torque for achieving the desired component life for the at least one drivetrain component at the reference transmission speed. 3. The method of claim 1, wherein the reference and current transmission speeds correspond to transmission output speeds. 4. The method of claim 1, wherein determining the transmission output torque limit comprises determining the transmission output torque limit based on the reference transmission torque, the reference transmission speed and the current transmission speed using a mathematical relationship that results in the transmission output torque limit increasing as the current transmission speed is reduced. 5. The method of claim 4, wherein determining the transmission output torque limit comprises determining the transmission output torque limit based on the reference transmission torque, the reference transmission speed and the current transmission speed using the following equation: Tlim=Tref*(SrefSactual)mwherein, Tlim corresponds to the transmission output torque limit, Tref corresponds to the reference transmission torque, Sref corresponds to the reference transmission speed, Sactual corresponds to the current transmission speed and m corresponds to a torque limit exponent. 6. The method of claim 5, wherein the torque limit exponent is selected based on a life exponent for the at least one drivetrain component. 7. The method of claim 5, wherein the torque limit exponent ranges from about 0.3 to about 1.0. 8. The method of claim 1, further comprising determining an engine torque limit for the engine based on the transmission output torque limit and a current gear ratio of the transmission. 9. The method of claim 8, wherein controlling the engine comprises controlling engine torque of the engine based on the engine torque limit such that the transmission output torque does not exceed the transmission output torque limit while the transmission is being operated at the current transmission speed. 10. The method of claim 1, wherein the at least one drivetrain component comprises a gear or a bearing of a drive axle assembly of the work vehicle. 11. A system for enhancing the performance of a work vehicle, the system comprising: an engine;a transmission coupled to the engine;at least one drive axle assembly coupled to the transmission; anda controller communicatively coupled to the engine and the transmission, the controller being configured to: store a reference transmission torque and a reference transmission speed for the transmission, at least one of the reference transmission torque or the reference transmission speed being determined based at least in part on drivetrain life data associated with at least one drivetrain component of the work vehicle;determine a current transmission speed for the transmission;determine a transmission output torque limit for the transmission based on the current transmission speed, the reference transmission torque and the reference transmission speed; andcontrol an engine of the work vehicle such that a transmission output torque of the transmission does not exceed the transmission output torque limit while the transmission is being operated at the current transmission speed. 12. The system of claim 11, wherein the drivetrain life data corresponds to a desired component life for the at least one drivetrain component, wherein the reference transmission torque corresponds to a transmission output torque for achieving the desired component life for the at least one drivetrain component at the reference transmission speed. 13. The system of claim 12, wherein the reference and current transmission speeds correspond to transmission output speeds. 14. The system of claim 11, wherein the controller is configured to determine the transmission output torque limit based on the reference transmission torque, the reference transmission speed and the current transmission speed using a mathematical relationship that results in the transmission output torque limit increasing as the current transmission speed is reduced. 15. The system of claim 14, wherein the controller is configured to determine the transmission output torque limit based on the reference transmission torque, the reference transmission speed and the current transmission speed using the following equation: Tlim=Tref*(SrefSactual)mwherein, Tlim corresponds to the transmission output torque limit, Tref corresponds to the reference transmission torque, Sref corresponds to the reference transmission speed, Sactual corresponds to the current transmission speed and m corresponds to a torque limit exponent. 16. The system of claim 15, wherein the torque limit exponent is selected based on a life exponent for the at least one drivetrain component. 17. The system of claim 15, wherein the torque limit exponent ranges from about 0.3 to about 1.0. 18. The system of claim 11, wherein the controller is further configured to determine an engine torque limit for the engine based on the transmission output torque limit and a current gear ratio of the transmission. 19. The system of claim 18, wherein the controller is configured to control the engine based on the engine torque limit such that the transmission output torque does not exceed the transmission output torque limit while the transmission is being operated at the current transmission speed. 20. The system of claim 11, wherein the at least one drivetrain component comprises a gear or a bearing of the drive axle assembly.
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이 특허에 인용된 특허 (13)
Bellinger Steven M., Control system for regulating output torque of an internal combustion engine.
Maxon,Andreas; Eich,J?rgen, Method and device for monitoring the errors of an electronic control unit of an automated transmission that is situated in the drive train of a motor vehicle.
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