Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Power transmission device

A power transmission device and power transmission technology, applied in the direction of power device, transmission device control, arrangement of multiple different prime movers of general power device, etc., can solve problems such as clutch impact, achieve impact suppression, mitigation of impact, and responsiveness good effect

Active Publication Date: 2011-10-12
TOYOTA JIDOSHA KK
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of clutch may cause a shock during engagement due to a sudden increase in oil pressure

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power transmission device
  • Power transmission device
  • Power transmission device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0034] according to Figure 1 to Figure 11 Embodiments of the power transmission device of the present invention will be described. The power transmission device and a vehicle mounted thereon will be described below.

[0035] figure 1 Reference numeral 1 in , represents a hybrid vehicle, which is an example of a vehicle to which the power transmission device of this embodiment is applied, and has a mechanical power source powered by mechanical energy and a power source powered by mechanical energy obtained by converting electrical energy. Electrical power source.

[0036] This hybrid vehicle 1 has an engine 10 that outputs mechanical power (engine torque) from an output shaft (crankshaft) 11 as a mechanical power source. As the engine 10, an internal combustion engine, an external combustion engine, or the like can be considered. The operation of the engine 10 is controlled by an engine control unit of an electronic control unit for an engine (hereinafter referred to as “eng...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Provided are a clutch (30) which is operated by a pressure of supplied fluid and which adjusts a power transmission state of an engine (10) and / or a motor / generator (20) on a power transmission path, a first drive pump (51) which is driven in accordance with rotations of the motor / generator (20) and supplies fluid to the clutch (30), and a second drive pump (52) which is driven by an electric power and supplies fluid to the clutch (30), wherein, by selecting either the first drive pump (51) or the second drive pump (52) as a supply soured of the fluid, a first engagement portion (31) and a second engagement portion (32) can be engaged at various speeds, and when there is a request for driving the clutch (30) and the number of revolutions of the motor / generator (20) is lower than a predetermined number of revolutions, the fluid is supplied from the second drive pump (52); for quick engagement of the first engagement portion (31) and the second engagement portion (32).

Description

technical field [0001] The present invention relates to a power transmission device that transmits power from a power source to a drive wheel side. Background technique [0002] Patent Document 1 below discloses a hybrid vehicle provided with an engine and a motor generator as a power source, and a power transmission device that transmits the power of the power source to the driving wheel side. The power transmission device of this Patent Document 1 includes a clutch capable of disconnecting and connecting power transmission between the engine and a motor generator, and a clutch capable of disconnecting and connecting when changing a gear stage in an automatic transmission. In addition, this hybrid vehicle is provided with a mechanical oil pump and an electric oil pump for supplying oil pressure to the automatic transmission. This mechanical oil pump is driven by the power of the engine when the motor generator fails, and supplies part of the oil pressure to the electric oi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B60W10/10B60W10/30B60W20/00F16H61/02B60L50/16B60W10/115
CPCB60K6/48B60K2006/4825B60W10/02B60W10/06B60W10/08B60W10/115B60W20/00B60W2510/108F16H61/0025F16H61/0031B60Y2300/45F16H2312/14B60W2510/081B60W2710/023B60W2710/30B60W2510/0241B60W20/40B60W2520/10B60W10/11Y02T10/62Y02T10/72B60W20/50B60W10/026
Inventor 吉川雅人
Owner TOYOTA JIDOSHA KK
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com