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Hydrogen fuelled hybrid powertrain and vehicle

A powertrain and hydrogen fuel technology, applied in hybrid vehicles, motor vehicles, electric vehicles, etc., can solve the problem of low power density of hydrogen

Inactive Publication Date: 2006-02-15
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a problem posed by the lower power density of hydrogen when used in internal combustion engines is the ability of the powertrain to deliver gasoline engine-like performance over a wide range of operating speeds

Method used

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  • Hydrogen fuelled hybrid powertrain and vehicle
  • Hydrogen fuelled hybrid powertrain and vehicle
  • Hydrogen fuelled hybrid powertrain and vehicle

Examples

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Embodiment Construction

[0023] figure 1 A general structure for a hybrid vehicle system 100 according to the present invention is shown. The system 100 includes a primary power source 112, such as a gasoline, diesel or gaseous fuel supply, connected to a primary power generation system 114, such as an internal combustion engine. The primary power generation system 114 generates drive torque that is transmitted through the powertrain assembly 116 to a driveline 128 of the vehicle.

[0024] The power transmission assembly 116 may be a conventional manual, automatic or continuously variable automatic transmission, or other equivalent gear mechanism, for transmitting the generated mechanical power to the primary power generation system 114 . The system 110 also includes an auxiliary power source 118, such as a battery, ultracapacitor, hydraulic accumulator, or other energy storage device, and an auxiliary power generation system 120, such as one or more electromechanical or other torque generating devic...

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Abstract

A hydrogen-powered hybrid powertrain system (100, 200, 300, 500, 1000) includes a hydrogen-fuelled internal combustion engine (114, 202, 302, 400, 902) operating at a lean air / fuel mixture, and a supercharger (436) for boosting a primary drive torque produced by the engine primarily over a high operating speed range. An electric motor / generator (232, 314, 905) generates a secondary drive torque for the vehicle, such that the secondary drive torque complements the boosted primary drive torque over at least a low operating speed range of the powertrain. A disconnect clutch (312, 510) disposed between the engine and the motor / generator engages and disengages the engine from the motor / generator, and serves to transfer the boosted primary driver torque through the motor / generator and to a power transmission system (116, 316, 550). The input at the power transmission is thus a combination of the boosted primary drive torque and the secondary drive torque having an enhanced torque characteristic over at least the low operating speed range.

Description

technical field [0001] The present invention relates generally to hybrid electric vehicles, and more particularly to hybrid electric powertrains and vehicles powered by hydrogen fueled internal combustion engines. Background technique [0002] Automakers have conducted intensive research and development in recent years to implement and commercialize faster vehicle fuel cell and gasoline hybrid electric vehicle (HEV) technologies. Fuel cell technology utilizes electrochemical conversion devices, such as PEMs and solid oxide fuel cells, to generate propulsion without tailpipe emissions. Gasoline blends that do not completely eliminate tailpipe emissions can significantly improve fuel economy at a fraction of the cost of current fuel cell technology. [0003] Alternatively, powertrains combining the advantages of hydrogen-powered internal combustion engines and hybrid electric capabilities have been proposed. In eg US patent application 2002 / 0098414 a very low emission hybrid...

Claims

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Application Information

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IPC IPC(8): B60K6/04F02D35/00F02D41/22F02M21/02B60K6/22B60K6/24
CPCY02T10/6286Y02T10/146Y02T10/6239Y02T10/6217Y02T10/32Y02T10/6295Y02T90/121Y02T10/6265Y02T10/6221Y02T10/30Y02T10/62
Inventor 托尼·加里·格拉博夫斯基阿伦·库尔马·尧拉怀特·奥特曼罗伯特·纳特金斯蒂芬·施瓦博斯基爱德华·吉布莱特·奥洛托曼斯亚当·登灵格贾斯万特·迪隆
Owner FORD GLOBAL TECH LLC
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