control del motor mr-pld de mercedes benz.pdf
TRANSCRIPT
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Engine control withMR-PLD
DaimlerChrysler
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Printed in Germany changes of technical details of the controllers and engines opposite the data and illustrations of the available manual are reserved.
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Powersystems
Document name: PRODUKT DOCUMENTATION MR-PLD
Project: DC - MR-PLD
Usage: Generally accessible
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Index
)5.5( )5.5( 4.3.)5.6(1.3.2.)5.6(Data set 27......)
4.3.1.3.1.Single parameters ............................................................................................. 102 4.3.1.3.2.Data set calibration........................................................................................... 104
4.3.1.3.3.Save modified parameter set........................................................................... 1054.3.1.3.4.Convert modified parameter set..................................................................... 106
4.3.1.4. Program protection ........................................................................................................... 1074.3.2. Stardiagnose ..................................................................................................................................... 1074.3.3. ServiceLink....................................................................................................................................... 108
4.4. Diagnosis routines.........................................................................................................................1094.4.1. Detailed testing routines ................................................................................................................ 109
4.5. Backup .............................................................................................................................................1104.5.1. System backup capability .............................................................................................................. 110 4.5.1.1. Microprocessor 1-backup................................................................................................. 110 4.5.1.1.1.Crankshaft backup............................................................................................ 110 4.5.1.1.2.Camshaft backup .............................................................................................. 110
4.5.1.1.3.CAN-backup (definition) ..............2 Tc0.0012 Tw[( )5.5( )5.5( )5.5( )5.5(
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2. General governor architecture
2.2.2. ADM as FRE (vehicle electronics)
Block diagram 2.2.2.: Governor architecture with interface module ADM
• ADM
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3. MR-PLD engine control (pump line nozzle)
3.2.1. Overview of the telligent engine system BR 500
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3. MR-PLD engine control (pump line nozzle)
3.2.4. PLD control unit as engine control (MR-PLD)
ABS = Antilock Brake systemsADR = PTO speed controlFRE
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3.3. Functional description
3.3.6. Shutoff or throttling of the engine through the FRE (vehicle electronics)
Engine brakes:
Case 1: As far as available and configured, the decompression valve (MBR-KD) and the engine retarder flap (MBR-BK) are controlled predominantly by the FRE. The FRE informs the MR-PLD about the status. The MR-PLD
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3.5. Electrical description
3.5. Electrical description
3.5.1. System interface diagramThe 55 pin and the 16 pin sockets are the interfaces of the system. In the following block diagram the mod-
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3.5. Electrical description
Socket 55 pin (engine plug)
Pin no. Designation or description Type Abbreviation In/Out **
47
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3.5. Electrical description
3.5.1.4. Voltage supply of control unit MR-PLD (D2.1)
1.
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3.5. Electrical description
3.5.4.3. Service button start/stop
The service buttons are supplied by the electronic control unit with a tension of 5 V. As trigger levels are considered: There are two digital inputs (circuit proof against ground), which enable the functions service button startand stop if the driver´s cab is raised. An engine start via
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4. Diagnosis
4. Diagnosis
4.1. Measured values
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4. Diagnosis
No. Information Coding
7
torque limitation through:engine safeguards
full load
full-load speed regulation
smoke limitation
00 = not active01 = active10 = n.d.11 = signal not available
00 = not active01 = active10 = n.d.11 = signal not available
00 = not active01 = active10 = n.d.11 = s.n.v.
00 = not active01 = active10 = n.d.11 = signal not available
8
status PWM 5
status PWM 6
free
free
00 = not active01 = active10 = n.d.11 = signal not available
00 = not active01 = active10 = n.d.11 = signal not available
starting with HW-Version D2.1& SW-Version 53
starting with HW-Version D2.1& SW-Version 53
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4.3. Diagnosis unit & application
4.3.1.4. Program protection
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4.5. Backup
A differentiation must be made of three different CAN backup operations, which can be set in the MR-PLD
control unit via the FRE (with a still
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4.5. Backup
4.5.5.2. MR-PLD proportional valves
Error recognition: short circuit to ground + leadIf there are several consecutive short circuits in the posi
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4.6. Fault codes & repair l00 163(t)2(r)-19.2(u)-1(c)1-0.(t)2(iol00)]TJET56.3434.287 0.24 -0.48 ref56.5834.287 482.1 -0.48 refBT12 0 0 12 56.5876
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4.6. Fault codes & repair instructions
4.6.3. Fault type
Fault type (aa) Description Remark / Application00 communication line 1 defective communication interface (e.g. CAN)
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4.6. Fault codes & repair instructions
4.6.4. Fault codes und repair instructions, high priority
Chart: fault codes and repair instructions, high priority
Fault-No. Fault Repair instructions2 40 53 internal fault
EEPROM: Checksum- fault 3(block production or immobi-lizer)
- check all affected connectors, plug connections and electric components for
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5. Parameters
5. Parameters (minidiag2)
The parameters of the MR-PLD control unit are classified in different groups. Each parameter group corresponds to one area of influence. Parameters with * are dependent on data set!
5.1. MR-PLD Diagnosis version 3 to 5 (up-/download)
Parameter group Parameter Min Max Default Unit
01 data set code 01/01: data set code
02 certification code 02/01: certification code
06 vehicle parameter set 1
06/01: proportional valve 1
0 = no function (def.)1 = boost pressure control2 = free3 = engine retarder flap
0 3 0 -
06/02: proportional valvel 2
0 = no function (def.)1 = free2 = free3 = decompression valve
0 3 0 -
06/03: proportional valve 3
0 = no function(def.)
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5. Parameters
5.2. MR-PLD Diagnosis from version 6 (single parameters)
Parameter group Parameter Min Max Default Unit
01 engine identification
01/02: gearbox
manual / automatic transmission:
0 = MT (manual / default)1 = AT (automatic)
0 1 0 -
01/03: starter type (JE / KE)
0 = engine ecu controls the starter(JE-mode)
1 = engine ecu controls not the starter(KE-mode)
0 1 0 -
01/04: port closing.3(-)] starteLe)0 1 0 -
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