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Methods and system for shifting a hybrid vehicle

The technology of a transmission system and operation method is applied to hybrid vehicles, the layout of multiple different prime movers of general power plants, motor vehicles, etc., which can solve the problems of transmission system efficiency reduction, motor range reduction, etc., and achieve improved vehicle performance. The effect of energy efficiency

Active Publication Date: 2016-10-26
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the torque converter clutch is open during a transmission shift, driveline efficiency can be reduced, reducing the range over which the motor can propel the vehicle

Method used

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  • Methods and system for shifting a hybrid vehicle
  • Methods and system for shifting a hybrid vehicle
  • Methods and system for shifting a hybrid vehicle

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Embodiment Construction

[0028] This specification relates to controlling the driveline of a hybrid vehicle during gear changes. Hybrid vehicles can include figure 1 engine shown. figure 1 The engine can be included in the figure 2 in the drivetrain or driveline shown. The drive train can include such as Figure 3A and Figure 3B Torque converter clutch or lockup clutch shown with or without damper spring. The drive train can include based on Figure 4 and Figure 5 Block diagram controls. The drive train can be Figure 6 shown method to operate.

[0029] refer to figure 1 , the internal combustion engine 10 comprises a plurality of cylinders, at figure 1 One of a plurality of cylinders is shown in , and the internal combustion engine 10 is controlled by an electronic engine controller 12 . Engine 10 is comprised of cylinder head 35 and cylinder block 33 including combustion chamber 30 and cylinder walls 32 . Piston 36 is positioned within cylinder wall 32 and reciprocates by being conne...

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Abstract

The invention relates to methods and system for shifting a hybrid vehicle. Systems and methods for shifting a transmission of a hybrid driveline that include a torque converter with a lockup clutch are presented. The systems and methods may adjust a feedforward motor torque command to match application of motor torque to a time that a gear clutch closes so that shifting may be improved and so that driveline torque disturbances may be less noticeable.

Description

technical field [0001] The present description relates to methods and systems for shifting gears of a fixed ratio transmission for a hybrid vehicle. The method and system may be particularly useful for hybrid vehicles that include driveline disconnect clutches. Background technique [0002] Hybrid vehicles may include an internal combustion engine and an electric motor to propel the vehicle. A motor can be selectively coupled to the engine via a driveline disconnect clutch. The motor may be used at a lower driver demand torque level, while the engine, or engine and motor, may be operated at a higher driver demand torque level. If the motor is the sole source of vehicle torque providing torque to propel the vehicle, it may be desirable to operate the engine driveline as efficiently as possible to extend the vehicle's operating range. One way to increase the operating efficiency of the driveline is to lock up the torque converter's torque converter clutch, which can be loca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/30B60W10/08B60W10/02B60W10/06B60W10/10
CPCB60W10/02B60W10/06B60W10/08B60W10/10B60W20/30B60W2710/083B60W2710/1044B60W2710/105B60W2710/0666B60K6/48B60W10/026B60K2006/4825B60W2050/0008B60W2050/0012B60W20/15B60W30/19B60W2510/1005Y10S903/93Y02T10/62B60W20/00B60W20/40B60W30/20B60W2510/105B60W2510/0275B60W2510/025B60W2510/1045
Inventor A·O’C·吉普森F·內多雷佐夫M·J·谢尔顿S·N·福特T·麦卡洛
Owner FORD GLOBAL TECH LLC
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