D1 Brake Design Diagram
Please read previous blog for detailed discussion about brake, vehicle and iterations (D1, D2, D3, D4, D5 and V1) planning.
If you can not read it, a table is made is previous blog where you can check specifications and dimensions. Below diagram number 2 is more clear. It has wet friction and dry friction both limits for acceleration.
Total Mass Kg
|
Total Weight N
|
#Height COG
|
#Wheel Base mm
|
#Front Axle to COG
|
load on Rear Axle N
|
X
|
ψ
|
M
|
W (N)
|
HCOG
|
L (mm)
|
Lm mm
|
Frear
|
CG/WB
|
Frear/ W
|
545.0000
|
5346.45
|
350.00
|
2700.000
|
1900.0
|
3762.3
|
0.12963
|
0.70370
|
Rear calliper pushout pressure
|
Front/rear pad-disc brake factor
|
**Pedal lever ratio
|
Lever/master
cylinder effici
|
Bias ratio
|
Master cylinder bore diameter
|
Master cylinder Area m2
|
**Front/rear calliper piston diameter
mm
|
Por
|
Bff
|
Lp
|
np
|
Br
|
Dmm
|
Amc
|
Dcalpis mm
|
0.00000
|
0.76000
|
5.00000
|
0.80000
|
0.80000
|
10.00000
|
0.00008
|
45.00000
|
No of pistons in each front calliper
|
No of front callipers used
|
Front rear calliper cylinder effici
|
Mean eff radius of front disc
|
Radius of the front tyre m
|
**Front/rear calliper piston diameter
m
|
Front calliper pushout pressure
|
Mean effective radius of rear braking disc m
|
nf
|
Nf
|
ncf
|
rf
|
Rf
|
Dcf
|
Pof
|
rr
|
2.00
|
2.00
|
0.98
|
0.25000
|
0.33
|
0.045
|
0.00
|
0.25
|
deceleration (g)
|
OPT F(N)
|
OPT R(N)
|
**Caliper Piston Area
|
0.00159
|
|
|
|
-3.30000
|
0.43389
|
-3.73389
|
Aplied pedal force (N)
|
ACTUAL F
|
ACTUAL R
|
Pl F
|
Plr
|
-3.00000
|
0.27778
|
-3.27778
|
0.00000
|
0.00000
|
0.00000
|
0.00000
|
0.00000
|
-2.70000
|
0.14500
|
-2.84500
|
25.00000
|
0.47491
|
0.37993
|
707714.08351
|
566171.26681
|
-2.28570
|
0.00000
|
-2.28570
|
53.00000
|
1.00681
|
0.80545
|
1500353.85704
|
1200283.08563
|
-2.00000
|
-0.07407
|
-1.92593
|
70.00000
|
1.32975
|
1.06380
|
1981599.43383
|
1585279.54706
|
-1.80000
|
-0.11333
|
-1.68667
|
100.00000
|
1.89965
|
1.51972
|
2830856.33404
|
2264685.06723
|
-1.50000
|
-0.15278
|
-1.34722
|
125.00000
|
2.37456
|
1.89965
|
3538570.41755
|
2830856.33404
|
-1.20000
|
-0.16889
|
-1.03111
|
150.00000
|
2.84947
|
2.27958
|
4246284.50106
|
3397027.60085
|
-0.90000
|
-0.16167
|
-0.73833
|
175.00000
|
3.32438
|
2.65950
|
4953998.58457
|
3963198.86766
|
-0.60000
|
-0.13111
|
-0.46889
|
200.00000
|
3.79929
|
3.03943
|
5661712.66808
|
4529370.13447
|
-0.30000
|
-0.07722
|
-0.22278
|
225.00000
|
4.27420
|
3.41936
|
6369426.75159
|
5095541.40127
|
0.00000
|
0.00000
|
0.00000
|
250.00000
|
4.74912
|
3.79929
|
7077140.83510
|
5661712.66808
|
0.30000
|
0.10056
|
0.19944
|
275.00000
|
5.22403
|
4.17922
|
7784854.91861
|
6227883.93489
|
0.60000
|
0.22444
|
0.37556
|
300.00000
|
5.69894
|
4.55915
|
8492569.00212
|
6794055.20170
|
0.90000
|
0.37167
|
0.52833
|
325.00000
|
6.17385
|
4.93908
|
9200283.08563
|
7360226.46851
|
1.20000
|
0.54222
|
0.65778
|
350.00000
|
6.64876
|
5.31901
|
9907997.16914
|
7926397.73531
|
1.50000
|
0.73611
|
0.76389
|
375.00000
|
7.12367
|
5.69894
|
10615711.25265
|
8492569.00212
|
1.80000
|
0.95333
|
0.84667
|
400.00000
|
7.59858
|
6.07887
|
11323425.33616
|
9058740.26893
|
2.10000
|
1.19389
|
0.90611
|
425.00000
|
8.07350
|
6.45880
|
12031139.41967
|
9624911.53574
|
2.40000
|
1.45778
|
0.94222
|
450.00000
|
8.54841
|
6.83873
|
12738853.50318
|
10191082.80255
|
2.70000
|
1.74500
|
0.95500
|
475.00000
|
9.02332
|
7.21866
|
13446567.58670
|
10757254.06936
|
3.00000
|
2.05556
|
0.94444
|
500.00000
|
9.49823
|
7.59858
|
14154281.67021
|
11323425.33616
|
3.30000
|
2.38944
|
0.91056
|
525.00000
|
9.97314
|
7.97851
|
14861995.75372
|
11889596.60297
|
3.60000
|
2.74667
|
0.85333
|
550.00000
|
10.44805
|
8.35844
|
15569709.83723
|
12455767.86978
|
3.90000
|
3.12722
|
0.77278
|
575.00000
|
10.92297
|
8.73837
|
16277423.92074
|
13021939.13659
|
4.20000
|
3.53111
|
0.66889
|
600.00000
|
11.39788
|
9.11830
|
16985138.00425
|
13588110.40340
|
4.44444
|
3.87745
|
0.56699
|
625.00000
|
11.87279
|
9.49823
|
17692852.08776
|
14154281.67021
|
4.80000
|
4.40889
|
0.39111
|
650.00000
|
12.34770
|
9.87816
|
18400566.17127
|
14720452.93701
|
5.10000
|
4.88278
|
0.21722
|
675.00000
|
12.82261
|
10.25809
|
19108280.25478
|
15286624.20382
|
5.42857
|
5.42857
|
0.00000
|
700.00000
|
13.29752
|
10.63802
|
19815994.33829
|
15852795.47063
|
5.70000
|
5.90056
|
-0.20056
|
725.00000
|
13.77244
|
11.01795
|
20523708.42180
|
16418966.73744
|
6.00000
|
6.44444
|
-0.44444
|
750.00000
|
14.24735
|
11.39788
|
21231422.50531
|
16985138.00425
|