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

Method for controlling a clutch connected to an electric machine when a combustion engine starts

A technology of heat engine and control method, which is applied in the directions of electric motor start for engine, arrangement of multiple different prime movers of general power plant, engine start, etc., and can solve problems such as how to control the speed gradient of heat engine without description or suggestion , to optimize vibration and sound performance

Active Publication Date: 2019-10-25
PEZHO SITROEN AUTOMOBILS SA
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Although this document mentions that the speed gradient of the heat engine should be observed to determine the starting state of the engine, it neither describes nor suggests how to control the speed gradient during the start of the heat engine

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 a clutch connected to an electric machine when a combustion engine starts
  • Method for controlling a clutch connected to an electric machine when a combustion engine starts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] It should be noted that the drawings are given as examples and not as limitations on the present invention. The drawings are schematic diagrams that help to understand the principles of the present invention, and are not necessarily actual scales. In particular, the dimensions of the various components shown do not represent actual conditions.

[0032] In the following, all drawings shall be combined for reference. When referring to a specific drawing, that drawing and another attached Figure one It is used to identify the designated number reference sign.

[0033] figure 1 A hybrid traction chain 8 connected to a drive axle 10 is shown, which is equipped with a differential 9. The traction chain 8 is equipped with an electrified gearbox 1, 2, which includes an effective gearbox 1 and a traction motor 2 connected to the gearbox 1. The traction chain 8 also includes a clutch 3 that allows coupling between the traction motor 2 and the heat engine 7.

[0034] The traction c...

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

The invention relates to a method for controlling, when a combustion engine (7) starts, a clutch (3) that couples a high-performance electric machine (2) to the engine (7), the clutch (3) being controlled according to a reference maximum torque that can be transmitted to the engine (7) that is predetermined according to an estimate of the friction losses of the engine (7), so as to obtain a givenengine (7) speed gradient. A step of measuring or estimating an acceleration of the engine speed during the transmission of the reference torque is performed and when this measured or estimated acceleration returns a difference, in relation to the given speed gradient, of more than 6.66 revolutions per second squared, at least one step of correcting the reference maximum torque on the basis of themeasured or detected acceleration is performed so that the acceleration actually obtained during the start-up phase tends towards the given speed gradient.

Description

Technical field [0001] The present invention relates to a method for controlling a clutch when starting a heat engine, the clutch connecting a high-performance electric motor to the engine to start the engine. [0002] A high-performance motor refers to a motor that can provide at least 30,000 watts and 100 Newton meters of torque, and therefore has more power than commonly used starters or alternator-starters. [0003] More particularly, the present invention relates to the field of hybrid motor vehicles equipped with a heat engine and a traction motor. When the heat engine is started, the traction motor is coupled to the heat engine through a clutch, and therefore, the motor acts as an alternator Or alternator-starter. [0004] However, this is not restrictive, and the present invention is applicable to any assembly including a heat engine, a clutch, a high-performance motor, and a control unit responsible for the operation of the above three elements. However, in the following, a...

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): F16D48/08
CPCB60K6/48B60K2006/268B60K2006/4825B60W10/02B60W10/06B60W10/08B60W20/40B60W2710/027F02N11/00F02N11/04F02N15/022F02N2300/104F16D48/08F16D2500/10412F16D2500/1045F16D2500/1066F16D2500/30412F16D2500/3064F16D2500/3065F16D2500/3068F16D2500/30808F16D2500/70408Y02T10/62
Inventor 亚历克西斯·玛琪莉塞巴斯蒂安·博科罗特瑞德瓦·哈巴尼克里斯蒂安·诺瓦雷
Owner PEZHO SITROEN AUTOMOBILS 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