Hybrid electric powertrain

一种动力系、动力源的技术，应用在动力系领域，能够解决能量消耗等问题，达到降低能量消耗、避免发动机失速、最佳车辆性能的效果

Inactive Publication Date: 2010-12-01
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This requires an auxiliary pump and results in a loss of energy when the engine is off

Method used

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Examples

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Embodiment Construction

[0018] The present invention will be better understood by reference to the following detailed description taken in conjunction with the accompanying drawings.

[0019] Referring now to the accompanying drawings, figure 1 The micro-hybrid electric vehicle 10 includes a power source 12 (such as an internal combustion engine), an engine starter motor 14, an automatic transmission 16, a transmission input shaft 18 drivably connected to the engine 12, a transmission output shaft 24, a The final drive mechanism 26, the electric auxiliary hydraulic pump (EAUX) 28 (whose output provides pressure for the hydraulic system of the transmission 16), the battery 30 to supply electric power to the pump 28, the starter 14, the microprocessor-based controller 55, through The output shaft and final drive mechanism are drivably connected to axle shafts 32 , 33 that drive wheels 34 , 35 .

[0020] The vehicle operator's upshifts (+ ) and the downshift (-) position by manually moving the shift l...

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Abstract

A method for controlling restart of an engine in a hybrid electric powertrain includes stopping the vehicle and engine, initiating the restart, estimating time required to restart the engine after the restart is initiated, filling and stroking launch elements of a transmission, when the estimated time substantially equals a second estimated time required to fill and stroke said launch elements, and increasing the torque capacity of the launch elements to accelerate the vehicle.

Description

technical field [0001] The present invention relates generally to hybrid electric vehicle (HEV) powertrains and, more particularly, to control of transmission friction control elements during engine restart events. Background technique [0002] A hybrid electric vehicle (HEV) is a vehicle configured with a hybrid drive system that utilizes at least two different sources of torque to propel the vehicle. As a non-limiting example, a hybrid drive system may combine a conventional drive system including a stepped-ratio change automatic transmission and an internal combustion engine with one or more electric motors and a vehicle capable of driving the electric motors or storing energy. An electric drive system that charges an energy storage device, such as a battery, is combined to improve fuel economy relative to conventional vehicles. Hybrid electric vehicles typically offer different powertrain operating modes with the engine on or off depending on vehicle operating condition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/04B60W10/10B60W10/30B60W20/00B60W30/18
CPCB60W2710/1083B60W30/192B60W2540/12B60W2540/10B60W10/06Y02T10/48B60K6/365B60W10/02B60W2710/022B60W30/18018Y02T10/84B60W10/30B60W10/26B60W30/18027Y02T10/40B60W30/18054B60W50/0097B60W30/18063
Inventor 伊哈布·S·苏里曼瑞安·A·麦基
Owner FORD GLOBAL TECH LLC
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