the acc for automobiles
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The ACC FOR AUTOMOBILESTRANSCRIPT
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ADAPTIVE CRUISE CONTROL
FOR AUTOMOBILES
Presented by,
SONA COLLEGE OF TECHNOLOGY(At!n!"!s#
HARI $RISHNAN%V &$ARTHIC$%S(De'rt"ent !) Me*+n*- En.neern. / II yer
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C!ntents
Intr!d*t!n,
C!--s!n A0!dn*e Fetres,
1+t s Ad't0e Crse C!ntr!-,
1!r2n. !) ACC,
M3!r Fetres !) ACC,
P!tent- bene4ts !) ACC,
Pr*t*- A''-*t!ns !) ACC,
Fetre Pr!s'e*ts !) ACC,
C!n*-s!n
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Intr!d*t!n
E0ery "nte, !n 0er.e, t -est !ne 'ers!n des n *r *rs+%
Supercomputers now let designers create car frames and bodies
that protect the people inside by absorbing as much of the energy
of a crash as possible.
A-- t!-d t+e +!s't- b--s, d".ed 'r!'erty, nd !t+er*!sts 5-- dd ' t! 678 'er*ent !) t+e 5!r-d9s .r!ss
d!"est* 'r!d*t%
By ''-yn. d0n*ed "*r!'r!*ess!rs, rdrs, +.+7s'eed ICs, nd s.n-7'r!*essn. *+'s nd -.!rt+"sn R&D 'r!.r"s t+t red*es t+e **dents%
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C!--s!n A0!dn*eFetres
brake assist,
electronic stability, adaptive cruise control,
acceleration skid control,
lane departure warningsystem.
DRIVER ASSISTANCE SYSTEMS:
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Ad't0e Crse C!ntr!-
In t+s syste", t "esres t+e distance toa preceding vehicle and the relativevelocity of the vehicles, based oninformation obtained by a milli metre-
wave radar, nst--ed t t+e )r!nt !) t+e+!st 0e+*-e%
Usn. t+t dt, t t!"t*--y *!ntr!-s t+e
s'eed by activating the throttle actuatoror the brake actuators
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Re;re"ents !) ACC
M--"eters 50e rdrI".e Pr!*ess!r
Stere! C"er
Fs!n Pr!*ess!r
Hed C!ntr!- Unt
Ln2s n t+e '!5er trn
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1!r2n. !) ACC
T+e "--"eter 50e radar unit *!ntn!s-y transmits & receives radiowave '-se%
It computes the distance t! )!r5rd!b3e*t )r!" t+e t"e t t2es )!r t+e re<e*ted50e t! be re*e0ed%
T+e relative velocity s *-*-ted )r!" t+edierence in the frequency bet5eent+e trns"tted & t+e re<e*ted 50es%
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A *"er nd rdr re'!rt t+t, t+e'r!*ess!r *!"bnes t+e dt & *!ntr!-s t+e*r
T+e head way distance is shorter thanthe value set by the driver, t+e ACCsyste" t!"t*--y closes the throttlevalve t! de*e-erte t+e +!st 0e+*-e nt- t
retrns t! t+e 'resent dstn*e
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1+en t+e stt!n ne*essttes e0engreater deceleration, t+e syste" -s!t!"t*--y applies the brakes
On*e t+e head way distance becomeslonger than the set distance, s res-t!) t+e 're*edn. 0e+*-e !r t+e +!st 0e+*-e*+n.n. t+e -nes
T+e driver can override the operation of
ACC syste"
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M3!r Fetres !) ACC:
coordinate driving behaviorcontrol both the throttle andthe brakes
smooth deceleration pecial actuator values
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P!tent- !) Bene4ts !)ACCRed*t!n n **dent rte )!r 0e+*-es 4tted
5t+ *!--s!n 0!dn*e ty'e syste"s%
Red*t!n n dr0er )t.e%
In*rese n )e- e=*en*y de t! 0ery
.rd- s'eed n*rese > de*rese n tr=*% Inter*!nne*t!n t! "!re d0n*ed )tre
syste"s%
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Pr*t*- A''-*t!ns !)ACC
In My 6??@, T!y!t be*"e t+e 4rst t!ntr!d*e n ACC syste" !n 'r!d*t!n0e+*-e 5+en t n0e-ed laser-based
system )!r ts Pr!.ress *!"'*t -rysedn%
T+en Nssn )!--!5ed 5t+ a radar-basedsystem, n t+e *!"'ny9s C" 6LV7,
-ry sedn%
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Ftre Pr!s'e*ts !) ACC
Architectural approachesused for automotive radar!
Advances in "adar
#echnologyCooperative CollisionAvoidance
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C!n*-s!n
A*t0e *rse *!ntr!- nd ts rdr nt *!-d-s! brn. t+e auto industry closer to theelectronic cocoon% In t+e!ry, t+e cocoonis a blanket of technology and sensorsthat protects the car and its occupants%
$t is the ne%t generation advancementsin t+e -ne dete*t!n syste"s
Treece, James B. (1997!"!#$.%Toyota offers radar on Japan&s 'elsior. (automobile$ utomoti)e *ews%.
+ncyclopedia.com (igh Beam$. -etrie)ed !111!1.
References:
Bloch, le/ander (!1!!11"$.
%0ie Techniighlights des neuen udi "% (in 2erman$. utomotor
undsport.de. -etrie)ed !111!1.
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eres
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