ECU (MAP), .
MAP- , ECU
. (BAP) MAP,
.
MAP Speed/Density Manifold Pressure Controlled , . MAP- , ( 1 ).
, . 2 . 1 .
, , MAP/BAP MEMS . , , .
MAP
MAP- T-MAP (. 1,2). .
, , .
, , , . , , .
, MAP- , , , , , , -
.
, MAP Bosch (. 1) .
1 :
) ;
) : UV ; UA ; Pabs ; Δp 10...85 C; k ;
) : A strainngauge; B ; C ; UV ; UA ; ⊥ ;
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) : 1 strainngauge; 2 ; 3 ( ); 4 ; 5 ; 6 ( ); 7 .
. .
MAP- (sensor bubble), 20 . strain gauges ( ).
, . ( 12),
.
, , , . , , , ECU.
1 - MAP Bosch
250 ,
Bosch 250 (gauge pressures) 600 . , , , , .
DC- 40...+125 C (. 1).
10...85 C (. 1). -
, , .
T-MAP (. 2)
400 .
2 :
) ;
) : 1 ; 2 ; 3 ; 4 ; 5 ; 6
) : 1 ; 2 ; 3 ; 4 ; 5 ; 6 ; 7 NTCC;
) : R ; P ; T ;
, ) () ;
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) ( )
, , 100 /, .
2 - TTMAP 400
, -
.
. , , ,
.
(. 1).
. -
100. .
. , , NTC , . -
, , 2, .
. - . , .
(. 2) 400 , T-MAP, . , .
CAN
CAN (Control Area Network) - , "" /, . , , , . CAN , .
CAN . CAN . CAN , .. , , .
. , . , . 1 /.
, . , PHILIPS PCA82C250 110.
CAN . , , . , . .
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CAN . , , CRC-, , . d=6. 4.7x10-11.
CAN "" .
CAN . , , .. . , CAN, .
CAN , . , CSMA / CA (Carrier Sense Multiple Access with Collision Avoidance), .. , . , ( ). , . . , .
, () . CAN (ISO) . CAN (OSI).
3 ISO/OSI
CAN . CAN ( , , , , ).
(ISO) (SAE) CAN ^
- ISO11898 ;
- ISO11519 ;
J1939 (SAE) CAN .
5 . . 5 :
1) , .
2) , .
3) .
4) .
CAN . , . , .
CAN , . , - .
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dominant recessive. . CAN 0 dominant, 1 recessive.
dominant recessive , . , , . recessive, dominant, , , . , , .
. CAN , .. . .
CAN : .
, . , , . CAN .
CAN (RTR). , , , . . . .
CAN . CAN 4 .
( ) 11- , .
29- , (RTR).
.
, CAN. , .
:
- ();
- ;
- ;
- CRC;
- 2- ;
- .
. CAN. - 12 (11 , 1 RTR).
32 :
- 29 ;
- 1 , ;
- 1 SRR, ;
- 1 RTR.
. RTR : . dominant.
6 . IDE, : . dominant. RB0, RB1 .
DLC3:DLC0 . DLC.
, . CRC 15 , .
, . , , , dominant .
. CAN 2.0B, 8 , , 1/. CAN , . , , .
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CAN : , . . .
.
CAN 5 :
1) CRC. 15- CRC . , CRC . CRC , , .
, .
2) . , , dominant .
, dominant . recessive, , .
3) . , , ,
, dominant . .
4) . recessive , dominant. , . .
5) . CAN NZR .
recessive dominant . 6 , . , , . .
. :
- ;
- ;
- .
. CAN, , 6 dominant . , . 12 dominant, , .
, (TEC) 128. , .
. , TEC / REC 127.
, , , , , 6- recessive . , . , , .. recessive . dominant , .
- . - , TEC 255. , , . CAN, , .
. CAM .
CAN , ( Ethernet USB ) . .
.
, .
CAN , , .
