Transcript Motorcycle Brake GTR Progress report to 50/GRRF Report items      2015/11/6 High speed test evaluation Control layouts Pre-burnishing test Maximum and minimum lever force efforts Status of IMMA work.

Motorcycle Brake
GTR
Progress report to 50/GRRF
Report items
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2015/11/6
High speed test evaluation
Control layouts
Pre-burnishing test
Maximum and minimum lever force efforts
Status of IMMA work and future actions
IMMA
Brake Harmonization Task Force
2
High Speed Test
(IMMA's severity comparison
of FMVSS/ ECE/ Japan)
2015/11/6
IMMA
Brake Harmonization Task Force
3
<Objective>
To analyse the relative severity of the braking
performance during the high-speed tests in FMVSS,
ECE and Japan.
To establish the high-speed test procedure suitable for
GTR.
<Items Covered>
(1) Comparison of requirements regulated in
FMVSS/ECE/Japan
(2) Summary of the most severe requirements for the highspeed tests
2015/11/6
IMMA
Brake Harmonization Task Force
4
(1) Comparison of requirements in FMVSS/ECE/Japan
＜FMVSS＞
＜ECE＞
＜Japan＞
＜G T R ＞
・Weight
unladen
←
←
unladen
・Control
both
←
←
both
connected
←
?
←
?
No
5.8
?
Yes
Yes
?
Test condition
・Engine
disconnected
After 1 mile of
full accel.
・Speed
Up to a max of
192 km/h
160km/h or
Vmax * 0.8,
whichever is
less
Objective Requirement
・Deceleration
Behaviour during
braking
2015/11/6
5.4 m/s2
No
IMMA
Brake Harmonization Task Force
5
(1) Comparison of requirements in FMVSS/ECE/Japan
Items to be considered in the
high speed test
Braking force
Kinetic energy
Behaviour during braking
1. Severity comparison of braking force
1-a Approach
The key influences on braking force are:
1) deceleration 2) engine connected or disconnected
ECE has no requirement for deceleration.
a. FMVSS (Engine disconnect, 5.4m/s2)
b. Japan (Engine connect, 5.8m/s2)
Compare FMVSS and Japan at these decelerations.
2015/11/6
IMMA
Brake Harmonization Task Force
6
(1) Comparison of requirements in FMVSS/ECE/Japan
1. Severity comparison of braking force
1-b.Severity comparison test of FMVSS and Japan
Method : Compare the average control forces needed to
satisfy each regulation.
The higher the force, the more severe.
•Weight
： unladen
Japan
160 km/h
•Test speed
：
192 km/h
•Engine
：
disconnected
•Deceleration ：
2015/11/6
FMVSS
5.4m/s
2
IMMA
Brake Harmonization Task Force
connected
5.8m/s
2
7
(1) Comparison of requirements in FMVSS/ECE/Japan
1. Severity comparison of braking force
1-c-1.Test result (average control
forces)The braking force necessary for compliance : model A : 1000 cc
FMVSS
Japan
kgf
6
5
4
3
2
1
0
2015/11/6
FR
RR
IMMA
Brake Harmonization Task Force
8
(1) Comparison of requirements in FMVSS/ECE/Japan
1. Severity comparison of braking force
1-c-2.Test result (average control forces)
The braking force necessary for compliance : model B :1000 cc
FMVSS
Japan
kgf
7
6
5
4
3
2
1
0
2015/11/6
FR
RR
IMMA
Brake Harmonization Task Force
9
(1) Comparison of requirements in FMVSS/ECE/Japan
1. Severity comparison of braking force
1-c-2.Test result (average control forces)
The braking force necessary for compliance : model C : 900 cc
FMVSS
Japan
kgf
7
6
5
4
3
2
1
0
2015/11/6
FR
RR
IMMA
Brake Harmonization Task Force
10
(1) Comparison of requirements in FMVSS/ECE/Japan
1. Severity comparison of braking force
1-c-2.Test result (average control forces)
The braking force necessary for compliance : model Ｄ :1000 cc
FMVSS
Japan
kgf
7
6
5
4
3
2
1
0
2015/11/6
FR
RR
IMMA
Brake Harmonization Task Force
11
(1) Comparison of requirements in FMVSS/ECE/Japan
1. Severity comparison of braking force
1-d. Conclusion
The Japanese test is more severe than FMVSS ＜G T R ＞
unladen
both
connect
?
5.8m/s2
& Engine connected
5.8
2015/11/6
IMMA
Brake Harmonization Task Force
?
12
(1) Comparison of requirements in FMVSS/ECE/Japan
2. Severity comparison of
kinetic energy.
2-a. Approach
1
mv2
2
The key influence on kinetic energy is speed:
the mass of the MC remains the same.
＜GTR＞
unladen
The higher the speed, the more severe.
both
2-b. Severity comparison of FMVSS and Japan
FMVSS
: 192km/h
Japan
: 160km/h
2-c. Result
FMVSS is more severe than Japan.
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IMMA
Brake Harmonization Task Force
connected
After 1 mile
of full accel.
up to a max of
192 km/h.
5.8
?
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(1) Comparison of requirements in FMVSS/ECE/Japan
3.Severity comparison for vehicle behaviour
•Stable behaviour in the high-speed
(160km/h) test is required in both ECE
78 and Japan’s regulation.
GTR
unladen
both
connect
160km/h or
The assessment is made
from 160km/h
Vmax * 0.8,
whichever is
less
5.8
2015/11/6
IMMA
Brake Harmonization Task Force
Yes
14
(2) Summary of the most severe requirements in the
current high-speed tests
＜GTR＞
Test condition
・Weight
unladen
・Brakes
both
・Engine
connected
192km/h or
・Speed
Vmax * 0.8,
whichever is
less
Requirement
・Deceleration
・Behaviour
2015/11/6
) 5,8 (m/s2)
Yes
IMMA
Brake Harmonization Task Force
15
Report items (continued)
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High speed test evaluation
Control layouts:
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
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2015/11/6
Brake by wire gives new possibilities
Overlap with GRSG
Burnishing and the pre-burnishing test
Maximum and minimum lever force efforts
Status of IMMA work and future actions
IMMA
Brake Harmonization Task Force
16
Status of IMMA work and future activities
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2015/11/6
Severity comparisons completed on:
Dry test, heat-fade test, wet test and high speed
test
Now examining the general specifications
Target: an outline of the technical requirements
for a GTR at 51/GRRF
IMMA
Brake Harmonization Task Force
17