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System and method for operating vehicle powertrain

A technology of power transmission system and operation method, which is applied to the arrangement of multiple different prime movers, transmission devices, power devices, etc.

Pending Publication Date: 2018-12-21
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Vehicle occupants may find it distasteful to wait for vehicle parameter adjustments when they wish to reach their destination
Also, since internal combustion piston engines burn at fixed crankshaft intervals, it can be difficult to separate combustion artifacts from the parameter or variable being tuned

Method used

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  • System and method for operating vehicle powertrain
  • System and method for operating vehicle powertrain
  • System and method for operating vehicle powertrain

Examples

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Embodiment Construction

[0047] The following description relates to systems and methods for operating a driveline of a hybrid vehicle. Figures 1A-3B An example hybrid vehicle system is shown that includes a driveline with an engine, an integrated starter / generator, a dual clutch transmission, and a rear drive unit with an electric machine downstream of the dual clutch transmission. Figure 4 , 6 and 8 illustrate a method for operating a hybrid powertrain or powertrain. In particular, the methods describe methods of identifying system control parameters to improve powertrain operation and control. Figure 5 , 7 and 9 show that according to Figure 4 , 6 An example sequence of operations for the methods of and 8.

[0048] Figure 1AAn example vehicle propulsion system 100 is shown for a vehicle 121 . The vehicle propulsion system 100 includes at least two power sources including an internal combustion engine 110 and an electric machine 120 . Electric machine 120 may be configured to utilize or ...

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PUM

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Abstract

Methods and systems are provided for operating a powertrain or driveline of a hybrid vehicle that includes two electric machines and a transmission are described. In one example, vehicle propulsion ismaintained while transmission operating parameters are determined for improving transmission operation. In particular, a rear drive unit maintains vehicle speed and monitors torque delivered via an output of the transmission.

Description

technical field [0001] The present description relates to systems and methods for determining an operating characteristic of a transmission and operating a powertrain in response to the operating characteristic. The system and method may be applicable to a powertrain including a transmission positioned between two electric machines in the powertrain. Background technique [0002] A hybrid vehicle may include an engine, an electric machine, and a step ratio transmission. The transmission allows different vehicle speeds to be achieved while allowing the engine to operate within the desired speed range. By operating the engine within a desired speed range, engine emissions and performance may be improved. However, as the vehicle ages, the constant gear shifting of a step ratio transmission may require ongoing adjustments to the transmission control parameters. Vehicle occupants may find it distasteful to wait for vehicle parameters to be adjusted when they wish to reach thei...

Claims

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Application Information

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IPC IPC(8): B60W10/10B60W10/08B60W10/115
CPCB60W10/08B60W10/10B60W10/115F16H61/686F16H61/688F16H63/48F16H63/486F16H63/50B60Y2200/92F16H2061/0087F16H2061/064F16H2061/283F16H2003/0931F16H2200/0047F16H2200/006F16H3/663F16H2200/201F16H2200/2023F16H2200/2046F16H3/006Y10S903/914Y10S903/919Y10S903/93B60K6/48B60K2006/4808B60W10/113B60W20/15B60W30/19B60W2510/188B60W2710/0644B60W2710/1005Y02T10/62B60K6/387B60K6/547B60W10/02B60W10/11B60W20/40B60W2510/0275B60W2510/0283B60W2510/1015B60W2510/104B60W2710/027B60W2710/028B60W2710/081B60W2720/10F16D48/06F16D2500/10412F16D2500/1064F16D2500/108F16D2500/1107F16D2500/30415F16D2500/30816F16D2500/30825F16H37/042F16H63/483
Inventor 凯文·雷·鲁伊鲍詹森·迈尔杰弗里·艾伦·多林沃尔特·约瑟夫·奥尔特曼
Owner FORD GLOBAL TECH LLC
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