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Methods and system for improving hybrid vehicle transmission gear shifting

A transmission and power technology, which is applied in the field of drive train, can solve problems such as difficulty in transmission shifting, achieve the effects of improving the transmission shifting feeling, improving the transmission shifting, and reducing the noise of the drive train

Active Publication Date: 2018-09-28
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, placing the motor downstream of the transmission also presents some challenges
Specifically, placing the electric motor downstream of the transmission can make smooth shifting more challenging because engine torque is not directly absorbed by the electric motor
Additionally, providing smooth transmission shifts can be even more difficult since the electric motor can provide torque to or absorb torque from the driveline

Method used

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  • Methods and system for improving hybrid vehicle transmission gear shifting
  • Methods and system for improving hybrid vehicle transmission gear shifting
  • Methods and system for improving hybrid vehicle transmission gear shifting

Examples

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Embodiment Construction

[0041] The following embodiments relate to systems and methods for operating a driveline of a hybrid vehicle. Figure 1A-3 An exemplary hybrid vehicle system is shown that includes a transmission having a motor, an integrated starter / generator, a dual clutch transmission, and a rear wheel drive with an electric machine positioned downstream of the dual clutch transmission Tie. Figure 4 A method for controlling transmission shifting of a hybrid vehicle is shown. Such as Figure 5-9 As shown, hybrid vehicles can be based on Figure 4 method to shift gears. Transmission shifting can be based at least in part on the Figure 10-12 The method described in the transmission torque ratio.

[0042] Figure 1A An exemplary 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 consu...

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PUM

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Abstract

Methods and systems are provided for operating a driveline of a hybrid vehicle that includes an internal combustion engine, a rear drive unit electric machine, an integrated starter / generator, and a transmission are described. In one example, inertia torque compensation is provided to counter inertia torque during a power-on upshift.

Description

technical field [0001] The present invention generally relates to methods and systems for controlling a driveline of a hybrid vehicle. The method and system may be particularly useful for hybrid vehicles that include an electric machine downstream of the transmission in the driveline. Background technique [0002] Hybrid vehicles can be configured with one or more electric machines. Electric machines can be deployed in hybrid vehicles in several different ways. For example, the electric machine may be selectively connected to the engine in different ways, including at a location upstream of the transmission, directly through the gearbox, not connected to the engine, and at a location downstream of the transmission. Placing the electric machine downstream of the transmission has several advantages, such as increased driveline efficiency by allowing the electric machine to propel the hybrid vehicle without having to turn all of the rotating masses in the transmission. Howev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/10B60W10/08B60W10/06B60W30/19B60W30/20B60W10/02
CPCB60W10/02B60W10/06B60W10/08B60W10/10B60W20/00B60W30/19B60W30/20B60W2510/1025B60W2510/0657B60K6/448B60K6/52B60W30/1846B60K2006/4808B60W20/15B60W10/113B60W2510/1005B60W2710/1022Y10S903/93Y02T10/62B60W2510/0275B60W2510/0241B60W2510/1095B60W2510/1015B60W2510/104B60W2710/027B60W2710/0666B60W2710/083
Inventor 詹森·迈尔杰弗里·艾伦·多林王小勇马修·约翰·谢尔顿克里斯·约翰·特斯拉科肯尼斯·詹姆斯·米勒
Owner FORD GLOBAL TECH LLC
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