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Hydraulic circuits for hybrid electric transmissions

A technology of hydraulic circuit and torque converter, applied in the field of power system, can solve problems such as problems, expensive assembly of the system, etc.

Active Publication Date: 2016-11-23
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Various air- and liquid-based cooling systems have been proposed; however, most systems are expensive and create assembly problems when attempting to convert a non-hybrid vehicle to hybrid operation

Method used

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  • Hydraulic circuits for hybrid electric transmissions
  • Hydraulic circuits for hybrid electric transmissions
  • Hydraulic circuits for hybrid electric transmissions

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Embodiment Construction

[0027] figure 1 A hybrid electric vehicle 10 is illustrated, which is schematically represented by a parallel-type hybrid electric drive train. The hybrid electric vehicle includes an engine 12 having a rotation output of a disconnect clutch 14 connected to a drive motor 16. The output of the electric motor is connected to the input of the torque converter 18, and the output of the torque converter is connected to the input shaft of the automatic transmission 20. In the conventional way, the automatic transmission is connected by a differential 24 to the driving wheels 22, 22'. In the schematic diagram, the hybrid electric vehicle 10 has a pair of non-driving wheels, however, alternatively, a transfer case and a second differential may be used to actually drive all the wheels of the vehicle. The engine, disconnect clutch, electric motor, torque converter and automatic transmission are connected in series in sequence, such as figure 1 Shown in.

[0028] in figure 2 The motor / tr...

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PUM

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Abstract

A hydraulic circuit for a vehicle powertrain including a first line for delivering fluid to the torque converter, a second line for delivering fluid from the torque converter, and a third line for delivering fluid to the balance block and electric motor , and a fourth line for providing drive pressure to the clutch, said lines being coaxial.

Description

Technical field [0001] The present invention relates to a power system of a hybrid electric vehicle, and more specifically, the present invention relates to a hydraulic circuit that supplies fluid to a torque converter, balances a partition and an electric motor, and provides driving pressure to a clutch. Background technique [0002] Hybrid electric vehicles (HEVs) have internal combustion engines and electric motors, which can be used to propel the vehicle alternately or in a combined manner. Many different drive trains are used in hybrid vehicles. The present invention relates to a parallel configuration in which the engine is connected to an electric motor through a disconnect clutch, and the electric motor drives the torque converter input of an automatic hydraulic transmission. The hydraulic transmission has an output connected to a differential coupled with the two drive wheels of the vehicle. The power flow arrangement of the drive train of this parallel hybrid electric...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H47/08B60K6/36
CPCB60K6/48B60K2006/4825F16H41/30F16H2061/0046Y02T10/62
Inventor 史蒂文·阿纳托尔·福莱特史蒂文·杰拉尔德·托马斯
Owner FORD GLOBAL TECH LLC