self-inflating tyres.ppt
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7/24/2019 SELF-INFLATING TYRES.ppt
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SELF INFLATING TYRE SYSTEM
……tire system for future
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Introduction
Tires lose air through normal driving (especially after hitting pot
holes) and seasonal changes in temperatures resulting in under-
inflation
Under-inflation is bad for tyres because it results in wear of tyre
threads ,affects the handling of cars and is generally unsafe.
The Self inflating tires is designed to inflate or deflate tiresautomatically.
Tires need more air while driving on hard surfaces at high speedsand less air for driving on soft surfaces such as soil or sand.
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Different Tire Conditions And Effect On
Different Tire Pressure3
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!I"#I$% &' SIT!I"#I$% &' SIT
etect whether the air pressure in a particular tyre hasdropped using suitable pressure sensors and give the input
to electronic control unit (%#U)ECU controls the pneumatic system consisting up ofcontrol valves , air source and hose-pipes
To compensate the pressure loss by inflating that tire
bac to the proper level thereby maintaining correct air pressure
This entire process can be automated
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PARTS OF SELF-INFLATING SYSTEM
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Regulator Valve :Regulator Valve : used to control the rate of air flow toused to control the rate of air flow tothe tiresthe tires
PRESSURE SEORS :PRESSURE SEORS :They are used to sense theThey are used to sense the
pressure based on the deformation caused to the tires pressure based on the deformation caused to the tires
E!ECTRO"C COTRO! U"TE!ECTRO"C COTRO! U"T* It is the* It is the
microprocessor device that controls the entire systemmicroprocessor device that controls the entire system
A"R TA# A"R TA# * It supplies the re+uired amount of air at* It supplies the re+uired amount of air at
suitable pressure with the help of pressure valvesuitable pressure with the help of pressure valve
$OSE P"PES *They help in the transfer of air from the
air tan to the particular tyres
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Types &f Self Inflating Tires
SystemTIS( eritor Tire Inflation System)
#TIS (#entral Tire Inflation System)
TS (Tyre aintenance System)
6
%&eel'End Assem(ly%&eel'End Assem(l
y
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eritor Tire Inflation System
)* hen a tire loses pressure, due to a puncture or other seepage, a series ofchec valves automatically detects it.
+* The System then immediately drawsair from the vehicles pneumatic systemand directs it to each tire re+uiring air.
,* The air pressure is delivered via thetrailers hollow a/le housing.
-* The air then goes through the hubassembly and into the tires. It iscompletely isolated from the braesystem
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#TIS#TIS8
A .&eel valve is /resent .&ic& isolate t&etire from t&e system .&en it0s not in use*
An electronic control unit 1ECU23 t&e(rain of t&e system is mounted (e&indt&e /assenger seat*
An o/erator control /anel let customi4etire /ressure model*
CT"S includes a s/eed sensor /rovideinformation a(out current s/eed 5 inturn CT"S maintain t&e o/timum tire/ressure*
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TI!% 0I"T%"0"#% S1ST%TI!% 0I"T%"0"#% S1ST%
(TS)(TS)
Similar to #TIS
It notifies the driver via
warning light(visible inrear mirror).
0fter every 23 min. ortime period specifiedsystem chec the tire
pressure.
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!&s 4 #&"s &f SIT!&s 4 #&"s &f SIT
ADVATA6ESADVATA6ES::
S0'%T1S0'%T1
'U%$ %#&"&1'U%$ %#&"&1
TI!% $&"5%6IT1TI!% $&"5%6IT1
!I6I"5 #&'&!T"%SS!I6I"5 #&'&!T"%SS
$%SS 0I"T%"0"#%$%SS 0I"T%"0"#%
D"SADVATA6ESD"SADVATA6ES**
ore costly than the conventional tires..
7eavier than conventional tires.
The user must have the basic now how of the relation between the
pressure and road condition.
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11APP!"CAT"OS
7ilitary Ve&iclesPassenger Ve&iclesTruc8sAm(ulances
9ire Truc8s
Increases safety, comfort and fuel economy
'le/ibility for drivers
'uture tires
8etter option to reduce road accidents
ConclusionConclusion
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12ReferencesReferences
)2 Self "nflating Tyres: "nternational ournal on A//lications
in 7ec&anical and Production Engineering Volume ): "ssue
;: 7ay +<);3 // ;'=*
+2 Automatic tyre inflation system 3 6olden Researc&
T&oug&ts>Volume , > "ssue )<>A/ril +<)-
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