de
tNameTa
Zhe
gWe
SupervisorZhaoKeAbstractAlo
gwithe
ergycrisispeoplepaymorea
dmoreatte
tio
todrivi
g
comfortresearchaboutthee
gi
ecooli
gwatertemperatureismorea
dmoretheimporta
ceofscie
tificresearchi
stitutio
sThereisadirectori
directco
tactma
y
Class0982052
performa
cethecooli
gwatera
dthee
gi
eifthecooli
gwatertemperaturemai
tai
edatoptimaltemperaturera
geca
oto
lye
ha
cethepowerofdiesele
gi
ereducetheexhaustgasproducedstillca
reducefuelco
sumptio
e
ha
cetheworki
gstabilityofthee
gi
eHowtodetermi
etheoptimalcooli
gtemperaturera
geo
lythroughthedetectio
ofcooli
gwaterofdiesele
gi
epartswearpower
oiseexhaustgasqualitylubricati
goilqualityservicelifeworki
groughofthespecificeffectsa
dthe
comparethedataa
alysisoftheoptimumtemperaturera
geTheseare
ecessaryco
ditio
sfore
gi
eperforma
cetestisaca
detecta
dco
trolthetemperatureofcooli
gwateri
theco
troldeviceissetwithi
thera
geofresearcha
dtrialproductio
a
automaticco
troldeviceisthepurposeofthisresearchtopicAutomaticco
trollerforthissubjecttakesAT89552si
glechipmicrocomputerastheco
trolce
terthroughthetemperaturese
sorformeasuri
gwatertemperaturefa
relayco
trolmodetoreducethetemperatureofcooli
gwaterforthepurposeofThe4butto
co
trollerpositiveca
cha
gethetemperaturera
gethe4digitaldisplaytemperatureco
trollerHowwilltheautomaticco
trolfieldofthesi
glechipcomputerisappliedtodiesele
gi
ebutalsothefocusofthecurre
tdiesele
gi
eautomatio
thispaperco
formedtothistre
dthefurtherresearchtocreateco
ditio
sforthediesele
gi
ecooli
gwatertemperatureco
trolsystemKeywordsdiesele
gi
ecooli
gsystemTemperatureco
troldigitaldisplay
Sig
atureofSupervisor
目
录
f1
绪论
11本课题研究的背景和意义612国内外的发展与现状612本课题研究的主要内容8
2
系统总体设计
21系统设计要求922系统设计思路923系统设计框图9
3
系统硬件设计
31单片机最小系统硬件设计11
311AT89S52单片机13312单片机各引脚功能14
32温度采集电路设计1633显示电路19
331数码管的驱动20332数码管静态显示原理20333数r