hydrodynamic synchromesh automated transmission (hsat)

Technische Gemeinschaft der Chinesisch-Deutschen Automobilindustrie

Hydrodynamic Synchromesh Automated Transmission (HSAT)Tinghui Hu

Braunschweig, 23.05.2010

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Outline

1. Brief Introduction of HMTI

2. Overview of Automatic Transmissions

3. HSAT

3.1 System Design

3.2 Powertrain System Matching

3.3 Rig Test & Functional Test

4. Integrated Powertrain Control

5. Conclusion

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Brief Introduction of HMTI

by HMTI

Continuous Variable Transmission （ CVT）

Automated Manual Transmission (AMT)

Dual Clutch Transmission (DCT/DSG)

Hydraulic Automatic transmission (AT) Automatic

Transmissions

吉林大学液力机械传动研究所Hydraulic Mechanical Transmission Institute

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Famous Experts：

Prof. Luo Prof. Ge

Discipline Position: “211 Project”, “985 Project”

Team: 4 Professors, 20 Ph.D. students

Equipments ：

Automotive Hydrodynamic Transmission Test Bench Transmission Electronic Control Test Bench

A set of software tools for powertrain design, performance prediction and electronic control system development, with which we can carry out automobile transmission design, the initial performance prediction, key components analysis, powertrain matching.

by HMTI

by HMTI

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Research History & Topic

Phase IIPhase II

1991-2000

Key Technology

of AMT

Research on AT

Modern Design

Theory for AT

2

Phase IIIPhase III

2001-2009

Intelligent Shift Schedule

and Shift quality

improvement of AMT

AMT for Heavy Commercial

Vehicles

TC+AMT for off-road Vehicles

TCC Control for Efficiency

DCT Simulation, Design &

Control

3

Phase IVPhase IV

2010 →4

BEV： HEV： DCT：

System Design (Dry) &

System Evaluation (Wet /

Dry)

……

by HMTI

Phase IPhase I

Before1990s

Foundation of

HMTI

Theoretical

Research of

AMT

Research on

AT with FAW

1

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Research Achievements (Traditional Vehicles)

AT Mass Production of Torque Converter (TC)

by HMTI

AMT

HSAT = TC + AMT

DCT

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Outline



3. HSAT

3.1 System Design




5. Conclusion

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Overview of Automatic Transmissions

Automatic Transmissions

Continuous Variable Transmission （ CVT）

Stepped-speed Automatic

Transmission

Automated Manual Transmission (AMT)

Dual Clutch Transmission (DCT/DSG)

Hydraulic Automatic transmission (AT)

…AT

AMT MTActuator

Automatic Transmissions

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Hydraulic Automatic transmission (AT)

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• AT Production in China

Aisin, Japan

ZF, Germany

Allison, USA

Voith, Germany

Geely, China

Advance, China

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Aisin, Japan

ZF, Germany

Allison, USA

Voith, Germany

Geely, China

Advance, China

• AT Production in China

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• AMT

Clutch Actuator

Shift Actuator

ReleaseBearing

DiaphragmSpring

Synchronizer

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• AMT R&D Centers in China

863 Projects for AMT （ Heavy-duty Commercial Vehicles ） :

Fast （ Shaanxi ） :

Jilin University

Shanxi Datong Gear Group

Tsinghua University ; Beijing University of Technology

AMT Research Centers (Mainly):

1. Shanghai Ying Marsh Automotive Electronics Co., ltd

2. Nanjing AMTF

3. Beijing Gear Works

4. Jilin University

5. Beijing University of Technology

6. Chongqing University

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Outline



3. HSAT

3.1 System Design




5. Conclusion

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HSAT

Why TC + AMT ？

Disadvantages

AMT

Efficiency

Cost

Manufacture

AT

Launch-up

Shift Quality

AMT

Advantages

Mobility

Shift QualityAT

Cost

Efficiency

Manufacture

TC + AMT = HSAT

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HSAT

Hydrodynamic Parts

Gearbox

Hydraulic Control system Electroni

c Control System

Main Clutch

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Outline



3. HSAT

3.1 System Design




5. Conclusion

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HSAT

Match Objective:

Transmission

① Optimization between Requirement & Offer② Compromise between Oil Consumption &

Performance

Offer Requirements

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Outline



3. HSAT

3.1 System Design




5. Conclusion

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HSAT

Experiment Design

by HMTI

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HSAT

Rig Test

Objective: System Debug & Modify

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HSAT

Road Test

Objective: System Calibration

TCU

Different Road Conditions Software

by HMTI

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Outline



3. HSAT

3.1 System Design




5. Conclusion

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HSAT

Control System Diagram

Motor Clutch Gearbox TC

ECU

Fu

el Ig

nit

ion

Fu

el In

ject

ion

TCU

TC

Co

ntr

ol

Sel

ect

Co

ntr

ol

Sh

ift

Co

ntr

ol

TC

C C

on

tro

l

Clu

tch

Co

ntr

ol

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TCU

TC

Co

ntr

ol

Sel

ect

Co

ntr

ol

Sh

ift

Co

ntr

ol

TC

C C

on

tro

l

Clu

tch

Co

ntr

ol

HSAT

Integrated Control System Diagram

CANECU

Fu

el Ig

nit

ion

Fu

el In

ject

ion

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CAN


ECU

Fu

el Ig

nit

ion

Fu

el In

ject

ion

TCU

TC

Co

ntr

ol

Sel

ect

Co

ntr

ol

Sh

ift

Co

ntr

ol

TC

C C

on

tro

l

Clu

tch

Co

ntr

ol

PCU

HSAT

Integrated Control System in the Advanced Countries

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HSAT

Powertrain Control System in China


TCU

TC

Co

ntr

ol

Sel

ect

Co

ntr

ol

Sh

ift

Co

ntr

ol

TC

C C

on

tro

l

Clu

tch

Co

ntr

ol

CANECU

Fu

el Ig

nit

ion

Fu

el In

ject

ion

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Outline



3. HSAT

3.1 System Design




5. Conclusion

Erfolg durch Kommunikation

Technische Gemeinschaft der Chinesisch-Deutschen Automobilbranche

Thanks Very Much ! You are welcome for questions

M.Sc. Tinghui Hu

[email protected]

hydrodynamic synchromesh automated transmission (hsat)

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