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

Method for controlling the release of internal couplers of gear wheels on transmission shafts, transmission and power train

A control method and transmission technology, which are applied in the arrangement of multiple different prime movers of general power plants, the starting of engines, and the starting of motors for engines, etc., and can solve problems such as vibration, impact on vehicles, and bumps.

Pending Publication Date: 2020-09-01
RENAULT SA
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These explosions cause jolts and vibrations, which can affect the entire vehicle through the drive train
These bumps and vibrations can be very uncomfortable for the user

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
  • Method for controlling the release of internal couplers of gear wheels on transmission shafts, transmission and power train
  • Method for controlling the release of internal couplers of gear wheels on transmission shafts, transmission and power train
  • Method for controlling the release of internal couplers of gear wheels on transmission shafts, transmission and power train

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] figure 1 The gearbox 1 is for example of the "semi-automatic" type. Its operation is that of a manual transmission, but the shifting is automatic. The diagram depicts an electric machine known as HSG (Hybrid Starter Generator Machine) 2 , a combustion engine 3 on a solid main shaft 4 . Mounted on the hollow main shaft 6 is another electric machine 5, called ME, more powerful than the first one. The layshaft 7 of the gearbox is connected to a differential (not depicted) and then to the wheels of the vehicle.

[0023] A first coupling 8 with sliding gear and pawl located on the layshaft 7 makes it possible to vary the gear ratio of the electric machine ME 5 independently of the rest of the gearbox, so as to have two available electric gear ratios EV1 and EV2. A second coupling 9 with sliding gears and pawls located on the solid main shaft 4 makes it possible to modify the gear ratio of the combustion engine 3 separately from the motor gear ratio in order to establish t...

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

A method for controlling the release of the teeth of an internal transmission coupler (8, 12) controlled by a gearshift actuator (16) for applying or canceling a transmission ratio to or from the torque provided by a heat engine connected to the input of the transmission without a disconnect clutch, characterized in that when the heat engine enters a critical situation in which there is a risk ofstalling during deceleration in an engaged gear, a first critical zone is determined in accordance with the speed of the heat engine (omega), in which first critical zone the actuator (16) is urged torelease the engaged gear in order to prevent stalling, and a second critical zone is determined in accordance with the engine speed and the deceleration of the engine, in which second critical zone the engine stall is controlled by preventing the injection of fuel.

Description

technical field [0001] The present invention relates to control of the powertrain of a hybrid vehicle. [0002] More specifically, the subject of the invention is a control method for controlling the disengagement of the teeth of an internal transmission coupling placed under the control of a shift actuator for use without disengagement A gear ratio in which the clutch is engaged or disengaged for transmitting the torque supplied by the combustion engine connected to the input of the transmission. [0003] Another subject of the invention is a transmission and a hybrid powertrain consisting of a combustion engine connected to the first transmission input shaft without disengagement of the clutch an electric machine connected to the second transmission input shaft; and at least one coupling having coupling teeth coupled to a gear and placed under control of the shift actuator. Background technique [0004] In most road vehicles, power transfer from the engine to the wheels ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/442B60K6/547B60W10/06B60W10/08B60W10/11B60W10/113B60W10/18B60W20/10B60W20/40B60W30/18B60W30/182B60W30/188F02N11/08B60W20/30B60W30/20
CPCB60K6/547B60W10/06B60W10/08B60W10/11B60W10/113B60W10/18B60W30/18136B60W30/182B60W30/1884B60W2030/206B60W2510/0638B60W2510/0652B60W2510/1005B60W2710/1005B60W20/30B60W20/10B60W20/40Y02T10/62B60K2006/4816B60K6/48B60K6/442B60W2510/0614B60Y2200/92B60Y2400/81
Inventor C·尚特雷尔A·沙默鲁瓦L·勒毛
Owner RENAULT SA
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