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Methods and system for mitigating engine and motor torque disturbances of a hybrid vehicle

A technology of engine torque and power transmission system, which is applied to the layout of multiple different prime movers of hybrid vehicles, general power plants, motor vehicles, etc., can solve problems such as torque disturbances, and achieve the effect of reducing torque disturbances of the transmission system

Active Publication Date: 2017-07-18
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, a phase difference between engine torque and motor torque develops, which can cause driveline torque disturbances that are annoying to the driver of the vehicle

Method used

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  • Methods and system for mitigating engine and motor torque disturbances of a hybrid vehicle
  • Methods and system for mitigating engine and motor torque disturbances of a hybrid vehicle
  • Methods and system for mitigating engine and motor torque disturbances of a hybrid vehicle

Examples

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Embodiment Construction

[0015] The present invention is concerned with providing desired driveline torque progression. Hybrid vehicles can include as in figure 1 The engine shown in. figure 1 The engine can be included as in the figure 2 in the drivetrain shown in . The powertrain may include an engine that is based on the image 3 and Figure 4 The engine start sequence shown in is initiated. exist Figure 5 A block diagram of an example engine and motor torque controller according to the present disclosure is shown in . Figure 6 is a flowchart of a method for commanding engine and motor torque. exist Figure 7 A graph showing an example time constant as a function of accelerator pedal position is shown in .

[0016] refer to figure 1 , an internal combustion engine 10 comprising a plurality of cylinders is controlled by an electronic engine controller 12, where in figure 1 One of the cylinders is shown in . Engine 10 is comprised of cylinder head 35 and cylinder block 33 including com...

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PUM

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Abstract

Systems and methods for operating a transmission of a hybrid powertrain that includes a motor / generator are described. The systems and methods may improve engine starting during engine starts where little or larger driver demand torques are requested. In one example, engine torque may be commanded to a torque based on a filtered driver demand torque, the filtered driver demand torque filtered based on a position of an accelerator pedal.

Description

technical field [0001] The present invention relates to methods and systems for operating a powertrain of a hybrid vehicle. The method and system may be particularly useful for hybrid vehicles that provide wheel torque via an engine and a motor disposed along a shaft that provides input to a transmission. Background technique [0002] A hybrid vehicle may include an engine and a motor along the length of a driveline shaft that provides torque to a transmission. The engine may be selectively coupled to the motor via a driveline disconnect clutch such that the engine and motor may be operated individually or together to provide a desired driver requested torque. The motor can provide a relatively small amount of torque to drive the wheels, or it can be operated as a generator to recharge the electrical energy storage device. The engine can be activated to supply greater amounts of torque to the wheels, or to recharge the electrical energy storage via the motor operating as a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/15
CPCB60W2710/0666B60K6/48B60W10/02B60W10/026B60K2006/4825B60W20/40B60W10/06B60W10/08B60W2540/10Y10S903/905Y10S903/906Y10S903/912Y02T10/62B60K2006/268B60W20/10B60W2710/02
Inventor M·S·雅玛扎奇S·J·汤普森R·约翰瑞王小勇J·梅耶
Owner FORD GLOBAL TECH LLC
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