2006 Yamaha MotoGP YZR-M1 Technical Presentation

7/28/2019 2006 Yamaha MotoGP YZR-M1 Technical Presentation

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YZR-M1 TECHNICAL PRESENTATION- The evolution of the YZR-M1 during the 990cc period -


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Contents

Development objectives YZR-M1

Evolution of the YZR-M1 during 02 / 06

YZR-M1 development in 2006

Conclusion


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Development objectives YZR-M1

Chassis

Maximize agility

Engine

Best balance

Power and Drivability

EMS

Direct NaturalFeeling


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YZR-M1 Concept

Engine Brake Control( ICS System )

2002

2003

2004

Uneven firing order4-valve engine

2005Frame without cross member

2006

- Fly-by-wire (FBW)throttle system

- Start Control System


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Evolution of YZR-M1


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Development objectives of YZR-M1

Short wheelbase

Longswing arm

Mass

centralization

Low drag

fairing

Well balanced

frame

Chassis Engine

High REV & High power

Compact & Light weight

Engine Management System

Ridable Torque Control

Natural feeling engine brake

High reliability

Better fuel economy

* Compared to 2005


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Chassis


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Air intake passage

02 - 04 05 - 06

Evolution of frame

No cross member


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Evolution of aerodynamics

Front: Decrease CD*A means more speed and acceleration.

Side: Decrease yaw characteristics means better agility .

These 2 subjects are incompatible .


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Mass centralization

Change of fuel tank

20032005

Engine constitutionWell balanced4 axis location

The relocation of elec. parts( ECU, Data logger )

Below meter panel On the tank rail

Shorten AXLE distance


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PITCHROLL

YAW

Result of mass centralization

Mass centralization reducesbike inertia


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Engine


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In-line engine is best configuration to achieve M1 development objective

Engine configuration

Shorten AXLE Dist.

Shorter Wheelbase Longer rear arm


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Evolution of engine specification

Betterridability

Short stroke5Valve

Even-firingUneven-firing Gear Train

Morepower

4Valve


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Evolution of engine performance

500cc

02

03 04

05

06

3000rpm increase

25Kwincrease

38Kw

Difference


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Engine Management System (EMS)


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Evolution of EMS

2002

20032004

20052006

Engine Brake Control

Air by-passClutch control

Throttle

Engine Brake ControlTorque Control

Traction Control

Engine Brake Control

Torque Control

Traction Control

Wheely Control

Launch Control

ICS System

Fly-by-wire system


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2006 YZR-M1 Development


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< Chassis: More agility/stability >- New design frame

- Modified rear shock mount

< Engine: More power >- Change bore x stroke

- FBW throttle

Target of 2006 YZR-M1 Development

- New strategy of engine brake

- FBW Throttle control


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Modif ication from 2005

Stiffer Rear Shock Mount

< Chassis > < Engine > < EMS >

F-B-W throttle

EG Torque ControlEG Brake ControlWheely Control

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Bore x stroke

More rev & power achieved


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QatarTest/Feb

R5LeMans GP

R13SepangGP

R12

BrnoGPR4

ChinaGPR3

ISTGPIRTA

J EREZ

C

hassis

E

ngine

2006 Development flow of YZR-M1


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Conclusion


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1) YZR-M1 is designed and developed to achieve the best handling.This concept feeds back to production bikes YZF-R1, YZF-R6.

2) The adaptation of uneven-firingtechnology to the in-line 4 cylinderengine has made a big improvement in ridability. This technology isspreading in MotoGP.

3) Through 2002 2006 the engine management system has seen a lot of

progress. Each year sees an increase in the number of items on the bikethat are controlled by the EMS system.

Documents

2006 Yamaha MotoGP YZR-M1 Technical Presentation