[특허]System and method for obtaining an adjustable accelerator pedal response in a vehicle powertrain

System and method for obtaining an adjustable accelerator pedal response in a vehicle powertrain 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02D-011/10 B60W-030/188 B60K-006/448 B60K-006/48 F02D-029/02
출원번호	US-0928055 (2007-10-30)
등록번호	US-9726088 (2017-08-08)
발명자 / 주소	Kuang, Ming Lang Syed, Fazal Urrahman Phillips, Anthony Mark Ramaswamy, Deepa Masterson, Brandon R.
출원인 / 주소	Ford Global Technologies, LLC
대리인 / 주소	Kelley, David
인용정보	피인용 횟수 : 0 인용 특허 : 43

초록 ▼

The disclosed system and method changes a traction torque request in a vehicle powertrain with a driver-controlled vehicle accelerator pedal. A desired transfer function parameter in a powertrain control module is chosen by the driver to obtain a desired functional relationship between a traction to

대표청구항 ▼

1. A method for controlling a vehicle powertrain having a driver-operated vehicle accelerator pedal, comprising: selecting a transfer function shaping parameter;developing a second pedal position signal using an accelerator pedal position signal and a pedal position to pedal position signal transfer function shaped by the selected shaping parameter; anddeveloping a vehicle wheel torque request based upon a pre-calibrated functional relationship between vehicle speed and vehicle wheel torque for the second pedal position signal. 2. The method set forth in claim 1 wherein developing a vehicle wheel torque request based upon a pre-calibrated functional relationship between vehicle speed and vehicle wheel torque comprises selecting the pre-calibrated functional relationship from multiple vehicle speed and vehicle wheel torque relationships based on the second pedal position signal. 3. A control system for controlling a power plant in a vehicle powertrain having a driver-operated vehicle accelerator pedal for commanding vehicle wheel torque by the vehicle driver, the system comprising: an accelerator pedal position sensor connected to the accelerator pedal for developing an accelerator position signal;a power plant controller;a first control module of the power plant controller being configured with a transfer function for converting accelerator position signals to pedal count electrical voltage pulses;a second control module of the power plant controller in electrical communication with the first control module;a vehicle speed sensor for developing a vehicle speed signal;the second control module being configured with processor memory registers in which there resides an accelerator pedal map of at least one functional relationship between wheel torque and vehicle speed for a given number of pedal count electrical voltage pulses; anda vehicle driver operated selector for selecting one of multiple shaping parameters for the transfer function whereby a wheel torque request following an accelerator pedal position change is modified. 4. The control system set forth in claim 3 wherein the first control module is characterized by a transfer function that is changed by selecting a shaping parameter whereby an increased wheel torque is effected in response to a given change in accelerator pedal position. 5. The control system set forth in claim 4 wherein the driver-operated selector is characterized by a driver-operated switch to select a shaping parameter. 6. The control system set forth in claim 5 wherein the switch is a driver operated sliding switch. 7. The control system set forth in claim 5 wherein the switch is a driver operated discrete switch. 8. The control system set forth in claim 5 wherein the power plant is an internal combustion engine and the power plant controller is an engine controller. 9. The control system set forth in claim 6 wherein the power plant is an internal combustion engine and the power plant controller is an engine controller. 10. The control system set forth in claim 7 wherein the power plant is an internal combustion engine and the power plant controller is an engine controller. 11. The control system set forth in claim 4 wherein the vehicle is a parallel hybrid electric vehicle with an electric motor, and the power plant is an engine, driving power being developed both by the engine and the motor under the control of the power plant controller. 12. The control system set forth in claim 4 wherein the vehicle is a series-hybrid electric vehicle with an electric motor, and the power plant is an engine, driving power being developed by the motor under the control of the power plant controller. 13. The control system set forth in claim 4 wherein the vehicle is a series-hybrid electric vehicle with a motor, the power plant being a fuel cell, driving power being developed by the motor under the control of the power plant controller. 14. A method for controlling a vehicle power plant in a vehicle powertrain having a driver-operated vehicle accelerator pedal whereby vehicle power plant torque can be commanded by the vehicle driver, the method comprising: developing an accelerator pedal position signal in response to adjusting the accelerator pedal;selecting a transfer function shaping parameter;monitoring power plant speed;developing a second pedal position signal using the accelerator pedal position signal and a pedal position to pedal position signal transfer function shaped by the selected shaping parameter; anddeveloping a vehicle power plant torque request based upon a pre-calibrated functional relationship between power plant speed and power plant torque for a given second pedal position signal. 15. The method set forth in claim 14 wherein developing a vehicle power plant torque request based upon a pre-calibrated functional relationship between power plant speed and power plant torque comprises selecting the pre-calibrated functional relationship from multiple power plant speed and vehicle power plant torque relationships based on the second pedal position signal. 16. A control system for controlling a power plant in a vehicle powertrain having a driver-operated vehicle accelerator pedal for commanding vehicle power plant torque by the vehicle driver, the system comprising: an accelerator pedal position sensor connected to the accelerator pedal for developing an accelerator position signal;a power plant controller;a first control module of the power plant controller being configured with a transfer function for converting accelerator position signals to pedal count electrical voltage pulses;a second control module of the power plant controller in electrical communication with the first control module;a vehicle power plant speed sensor for developing a power plant speed signal;the second control module being configured with processor memory registers in which there resides an accelerator pedal map of at least one functional relationship between power plant torque and vehicle power plant speed for a given number of pedal count electrical voltage pulses; anda vehicle driver operated selector for selecting one of multiple shaping parameters for the transfer function whereby a power plant torque request following an accelerator pedal position change is modified. 17. The control system set forth in claim 16 wherein the first control module is characterized by a transfer function that is changed by selecting a shaping parameter whereby an increased power plant torque is effected in response to a given change in accelerator pedal position.

이 특허에 인용된 특허 (43)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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System and method for obtaining an adjustable accelerator pedal response in a vehicle powertrain 원문보기

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System and method for obtaining an adjustable accelerator pedal response in a vehicle powertrain 원문보기

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