Drive system with fluid pump

A drive system and fluid pump technology, applied in the field of drive systems and fluid pumps, can solve the problems of increased cost and weight

Inactive Publication Date: 2008-04-09
CONSULTING INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Some hybrids offer a separate electric oil pump that can work independently of the internal combustion engine, however this additional item increases cost and weight

Method used

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  • Drive system with fluid pump
  • Drive system with fluid pump
  • Drive system with fluid pump

Examples

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Embodiment Construction

[0030] FIG. 1 shows a power flow diagram of an exemplary drive system 10 including an internal combustion engine 12 , a shock absorber 14 , a planetary gear set 16 , an electric machine 18 and an automatic transmission 20 . Both the internal combustion engine 12 and the electric machine 18 drive an automatic transmission 20 through a planetary gearset 16 . The electric motor 18 also drives a fluid pump 22 of an automatic transmission 20 .

[0031] More specifically, in the example shown, the drive system 10 is provided in the form of a parallel hybrid drive in which the internal combustion engine 12 has a mechanical drive connection to an automatic transmission 20 . Referring to FIG. 1 , the crankshaft 24 of the internal combustion engine 12 is connected to a shock absorber 14 that serves to reduce pulsation caused by the intermittent bursts of the internal combustion engine 12 . Shock absorber 14 is connected to a planet carrier 28 of planetary gear set 16 by a shaft 26 . R...

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PUM

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Abstract

A drive system (10) including an internal combustion engine (12), a planetary gear-set (16), an electric motor (18) and a transmission (20), wherein the internal combustion engine (12) and the electric motor (18) each drive the transmission (20) via the planetary gear set (16), and the electric motor (18) drives a fluid pump (22) of the transmission (20). In a further embodiment there is disclosed a fluid pump for pumping fluid from a source to a destination, wherein first and second inlet conduits are provided between the source and the pump, first and second outlet conduits are provided between the pump and the destination, and each of the conduits is provided with a valve allowing fluid flow through the conduit in only one direction, such that when the fluid pump is rotated in a first direction fluid is pumped through the first inlet and outlet conduits, and when the fluid pump is rotated in a second opposite direction fluid is pumped though the second inlet and outlet conduits.

Description

technical field [0001] The invention relates to a drive system and a fluid pump. Background technique [0002] It has previously been proposed to provide a vehicle with a drive system known as a hybrid drive whereby the vehicle can be driven by an electric motor as well as an internal combustion engine. A typical drive system of this type includes a manual or automatic transmission through which drive power is transmitted to drive the wheels of the vehicle. [0003] Advantageously, a vehicle with a hybrid drive can use a smaller internal combustion engine than a conventional vehicle because additional power can be supplied by the electric machine as needed. By using a smaller internal combustion engine, hybrid vehicles can achieve better fuel efficiency than conventional vehicles. [0004] In some hybrid drive vehicles, the vehicle may be accelerated without the internal combustion engine, such that the internal combustion engine may be turned off while the vehicle is wait...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/00B60K6/445
CPCF04B53/16B60K25/02F16H57/0439B60K6/48F04C15/0061F04C2240/45B60K6/547B60K6/365B60W20/00F16H61/0028F04C15/066F04C14/04B60K6/383B60W10/30F16H61/0021F16H2061/0037B60K6/40Y02T10/6221Y02T10/62
Inventor R·T·塔巴S·坦普G·C·莫布瑞
Owner CONSULTING INT
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