“ECU communication protocol”: general information
Contents
1. AIM LOGGER ECU Note once the ECU is connected to AIM Logger it needs to be set in the logger configuration in Race Studio 2 software www aim sportline com 4 User Manual Ecu communication protocols and AIM loggers connection TID ar Release 1 45 Racing Data Power 3 AIM PROPRIETARY amp RS232 PROTOCOL 3 1 CAN Asynchronous Messaging AIM technique is referred to as Asynchronous messaging basically the whole stream of parameters all 35 Bytes is split up into 8 bytes length packets that are sequentially inserted into CAN messages and in a given order The data packets do not contain a specific identifier they are just in a predefined order At the receiving node the device looks for the Header information this is a constant contained in the data stream when this is seen the device knows that next message is the start of the data stream and all subsequent CAN messages will contain the given parameters in the predefined order This way the CAN system is simply a carrier for seemingly highly variable data under a single base addresses and the software handlers at either end know how to breakdown and reassemble these separate packets of data into a continuous and complete data stream The CAN bus has a bit rate of 1Mbit s and the CAN Buffer Identifier is 11bit CAN 2 0a CheckSum is the sum of all bytes of the structure up to and including marker byte 3 Byte Signal Units Scaling RPM RPM 1RPM Wheel Speed K2. 2003 2 iaaa daai aaa a a aaa 9 5 1 1 Connection with AIM Data 9 DTA 10 6 1 DTA P 10 6 1 1 Serial Communication 10 6 1 2 Connection with AIM Data logger sss nnne nnne enn 10 r o ete ee ee eee 11 EE 11 8 PERFORMANCE ELECTRONIGS ioni andan peint estu dno cti inn ER 12 8 1 PERFORMANCE ELECTRONIC 108010011 12 8 1 1 Connection with AIM Data 0 12 9 SUBARU 9 Mua CU dw cu ai 13 9 1 Connection with AIM Data annaa 13 10 WALBRO E 14 10 1 WALBEO BENELLI BENELLI 04 BIMOTA 1 2 2 2 2 2 14 10 1 1 Connection with AIM Data l
3. BRAKE Brake switch on off ECU 14 ENGINE LOAD Engine load ECU 15 AIR FLOW Intake air flow www aim sportline com TD Racing Data Power Each ECU is equipped with a serial communication interface RS 232 used to Ecu communication protocols and AIM loggers connection User Manual Release 1 45 10 WALBRO 10 1 WALBEO BENELLI BENELLI 04 BIMOTA HPUH1 communicate parameters to an external data logger or to configure the ECU itself 10 1 1 Connection with AIM Data logger AIM loggers can be connected to WALBRO ECUS DB9 serial port according to the following wiring scheme e Connect the AIM cable labeled RS 232 TX with DB9 male Pin 2 Connect the AIM cable labeled RS 232 RX with DB9 male Pin 10 2 WALBRO A1BEN_00 ECU 1 ECU 2 ECU 3 ECU 4 ECU 5 ECU 6 ECU 7 ECU 8 ECU 9 ECU 10 ECU 11 ECU 12 ECU 13 RPM MAP TPS TAIR TENGINE VBATT LAMBDA IDLEPOSITION DERIVTPS SIDE_STAND NEUTRAL MAPPA_ATTIVA TIPO_OVER RPM Manifold pressure Throttle position Intake air temperature Engine temperature Battery voltage Lambda value Idle position Throttle position derivative Side stand on off Neutral gear signal Selected engine map Tip over sensor on off www aim sportline com 14 Ecu communication protocols and AIM loggers connection TID User Manual TY Release 1 45 Racing Data Power 11 WOLF 11 1 WOLF 3D The ECU is equipped with a serial communication interfac
4. SUPPORTED ECU COMMUNICATION PROTOCOLS AND AIM LOGGERS CONNECTION User Manual 477 Racing Data Power User Manual Ecu communication protocols and AIM loggers connection TID T Release 1 45 Racing Data Power INDICE 1 ECU communication protocol general information 3 2 Supported general information sssssvvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnnnnnnnn 4 2 1 connection general information 4 2 1 1 Serial Communication 4 2 1 2 CAN Communication Set Up sisse nne sinas sitet enn na 4 3 AIM PROPRIETARY CAN amp RS232 PROTOCOL eene 5 3 1 CAN Asynchronous Messaging rrvrnnnavnnnnnnnnnvvnnnnvnnnnnnnnnnnnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 5 GL T AIM PROT us ice i Ret lade teen es 6 3 2 H9S232 Serial protocol c ccoie ue eoiccuerueise e eiue cunc noc cauda Las nme nonc Ua aan 6 3 2 1 AIM PROT UART uite ted eset ete ue pen aeta vata gau These epu eec agen meee 7 ee 8 ri pese aaan 8 9 5 1
5. cable called RS 232 TX with ECU RX pin and cable called GND with ECU Power GND pin as shown below Refer to the ECU user manual to know the ECU pinout LOG GND ECU GND LOG RX Cable labelled GND ECU TX Cable labelled RS232 RX ECU RX LOG TX Cable labelled RS232 TX AIM LOGGER CARMO AFI 2003 ECU Note this ECU needs connection of LOG TX cable to ECU RX pin too ECU 1 CARMO RPM RPM ECU 2 CARMO THROTTLE THROTTLE POSITION ECU 3 CARMO AIRTEMP INTAKE AIR TEMPERATURE ECU 4 CARMO WATERTEMP WATER TEMPERATURE ECU 5 CARMO MANIFPRES MANIFOLD PRESSURE ECU 6 CARMO BATTERY BATTERY VOLTAGE www aim sportline com 9 Ecu communication protocols and AIM loggers connection TID User Manual Release 1 45 Racing Data Power 6 DTA 6 1 DTA P8 6 1 1 Serial Communication Set Up The ECU is equipped with a serial communication interface RS232 used to communicate parameters to an external data logger or to configure the ECU itself 6 1 2 Connection with AIM Data logger To connect AIM logger to the ECU connect AIM cable labelled RS232RX with ECU TX AIM cable labelled as with ECU GND as shown below Refer to the ECU user manual to know ECU pinout LOG GND Cable labelled GND pere LOG RX ECU TX Cable labelled RS232 RX AIM LOGGER DTA P8 ECU ECU 1 DTA RPM RPM ECU 2 DTA WHEELSPD Vehicle speed ECU 3 DTA WATERTEMP Water temperature ECU 4 DTA AIRTEMP Intake air te
6. e RS 232 used to communicate parameters to an external data logger or to configure the ECU itself 11 1 1 Connection with AIM Data logger AIM loggers can be connected to WOLF ECU via DB9 serial port according to the following wiring scheme WOLF3D V4 MXL ECU RS232 TX BLUE RS232 RX szama were 4 GROUND BLACK GROUND 1 WOLF_RPM RPM ECU 2 WOLF_LOAD Engine load ECU 3 WOLF TURBOP Boost pressure ECU 4 WOLF MAP Manifold pressure ECU 5 WOLF INJT Injection time ECU 6 WOLF INJ DC Injector duty cycle 0 100946 ECU 7 WOLF IGNANG Ignition advance angle ECU 8 WOLF TPS Throttle position ECU 9 WOLF AIRT Intake air temperature ECU 10 WOLF ENGT Engine temperature ECU 11 WOLF OXYGEN Lambda raw voltage ECU 12 WOLF BATT Battery voltage ECU 13 WOLF IDLE VALVE Idle valve position ECU 14 WOLF NOISE False signals counter ECU 15 WOLF AFR Air fuel ratio ECU 16 WOLF ERR Error signal www aim sportline com 15
7. ke pressure rear right w No info available yet No info available yet No info available yet Vehicle speed front left wheel Vehicle speed front right wheel Vehicle speed rear left wheel Vehicle speed rear right wheel Lambda value 1 Lambda value 2 User Manual Ecu communication protocols and AIM loggers connection TID pai Release 1 45 Racing Data Power 5 CARMO 5 1 CARMO AFI 2003 AIM loggers can be connected to both Carmo ignition or injection unit AFI 2003 they can acquire data from Carmo units installed on Honda CBR600 Kawasaki ZX6R Yamaha YZ6F and Suzuki GSXR600 The configuration procedure is the same for every bike when the channels to acquire or to display have been selected the logger will automatically select the right set of sensors using the information given by AFI unit NOTE each manufacturer has its own set of sensors if the set of sensors is not the one used by the manufacturer for that type of bike acquired data could be wrong Injection unit When the logger is connected to the injection unit all channels listed in the configuration dialog window are available Ignition unit When the logger is connected to the ignition unit only RPM and Throttle Position channels are available In this case we recommend to disable the other ECU channels in order to save memory 5 1 1 Connection with AIM Data logger Connect cable labelled RS 232 RX with ECU TX pin
8. m h 0 1km h Oil Pressure Bar 0 1Bar Oil Temperature Deg C 0 1Deg C Water Temperature Deg C 0 1Deg C Fuel Pressure Bar 0 1Bar Battery Voltage Volts 0 01 Volts Throttle Angle 0 1 Manifold Pressure mBar 1mBar Air Charge Temperature Deg C 0 1Deg C Exhaust Gas Temperature Deg C 1Deg C Lambda Lambda 0 001 La Fuel Temperature Deg C 0 1Deg C Gear 0 neutral 1 first 2 second etc Errors ECU specific error flags Number of Data Bytes 30 Marker Byte 1 FC Marker Byte 2 FB Marker Byte 3 FA CheckSum www aim sportline com 5 User Manual Ecu communication protocols and AIM loggers connection TD e Release 1 45 Racing Data Power 3 1 1 AIM PROT_CAN ECU_1 AIM_RPM RPM ECU 2 AIM_WHEELSPEED vehicle speed ECU 3 AIM_OILPRESS oil pressure ECU 4 AIM_OILTEMP oil temperature ECU 5 AIM WATERTEMP water temperature ECU 6 AIM FUELPRESS fuel pressure ECU 7 AIM BATTVOLT battery voltage ECU 8 AIM TPS throttle position ECU 9 AIM MAP manifold pressure ECU 10 AIM AIRTEMP intake air temperature ECU 11 AIM EXHAUST TEMP exhaust temperature ECU 12 AIM LAMBDA lambda value ECU 13 AIM FUELTEMP fuel temperature ECU 14 AIM GEAR engaged gear ECU 15 AIM ERRORS error signal 3 2 RS232 Serial protocol The data stream is standard RS232 at 19200 n 8 1 It consists of a number of short packets Packets are sent on 10 ms ticks Note that this does not mean that there is a packet sent every 10 ms tick there is a pattern which repeats
9. mperature ECU 5 DTA MANIFPRESS Manifold pressure ECU 6 DTA THROTANG Throttle position ECU 7 DTA LAMBDA Lambda value ECU 8 DTA BATTV Battery voltage www aim sportline com 10 TD Racing Data Power 7 1 NIRA 13 Ecu communication protocols and AIM loggers connection 7 NIRA User Manual Release 1 45 The communication is done over an RS232 link to NIRA i3 Her below is ECU pinout ECU 1 ECU 2 ECU 3 ECU 4 ECU 5 ECU 6 ECU 7 ECU 8 ECU 9 ECU 10 ECU 11 ECU 12 ECU DB9 RS232 COM GND Bluetooth 5V supply TXD RXD NIRA RPM RPM NIRA WATER TEMP NIRA BATTERY VOLT NIRA TPS NIRA MAP NIRA AIRTEMP NIRA EXAUST GAS TEMP NIRA LAMBDA NIRA AUX1 NIRA AUX2 AUX3 NIRA_AUX4 www aim sportline com Water temperature Battery voltage Throttle position Manifold pressure Intake air temperature Exhaust temperature Lambda value Auxiliary channel 1 Auxiliary channel 2 Auxiliary channel 3 Auxiliary channel 4 Ecu communication protocols and AIM loggers connection TID User Manual Release 1 45 Racing Data Power 8 PERFORMANCE ELECTRONICS 8 1 PERFORMANCE ELECTRONIC ECU1 The ECU is equipped with a serial communication interface RS232 used to communicate parameters to an external data logger or to configure the ECU itself 8 1 1 Connection with AIM Data logger AIM loggers can be connected to Performance Electronics ECU via DB9 serial port according to the following wiri
10. ne com 7 TD Racing Data Power Ecu communication protocols and AIM loggers connection 4 BMW 4 1 BMW Z4M COUPE ECU_1 ECU_2 ECU_3 ECU_4 ECU_5 ECU_6 ECU_7 ECU_8 ECU_9 ECU_10 ECU_11 ECU_12 ECU_13 ECU_14 ECU_15 ECU_16 ECU_17 ECU_18 ECU_19 ECU_20 21 ECU 22 ECU 23 ECU 24 ECU 25 ECU 26 ECU 27 ECU 28 ECU 29 ECU 30 ECU 31 ECU 32 ECU 33 ECU 34 ECU 35 ECU 36 ECU 37 ECU 38 ECU 39 BMW RPM BMW IGN ANG BMW TPS BMW GEAR LEVER BMW VANOS BMW TPS KORR DSC BMW EGAS POS BMW STATE BMW AZ KORR DSC BMW AIR PRESS DYN BMW OIL TEMP BMW WATER TEMP BMW FUEL TEMP BMW AIR TEMP BMW DIFF TEMP BMW GEAR TEMP BMW ECU TEMP BMW CURRENT BMW PSLIM STATE BMW GEAR BMW FUEL LEVEL BMW SW STATE BMW FUEL PRESS BMW WATER PRESS BMW OIL PRESS BMW VBATT BMW BRK PFL BMW BRK PFR BMW BRK PRL BMW BRK PRR BMW P400 N BMW P400 C BMW P 400T BMW SPEED FL BMW SPEED FR BMW SPEED RL BMW SPEED RR BMW LMBD1 BMW LMBD2 www aim sportline com User Manual Release 1 45 RPM Ignition advance angle Throttle position Gear lever position Variable valve timing Oil temperature Water temperature Fuel temperature Intake air temperature Differential temperature Gear box oil temperature Ecu temperature Engaged gear Fuel level Fuel pressure Water pressure Oil pressure Battery voltage Brake pressure front left w Brake pressure front right w Brake pressure rear left w Bra
11. ng scheme Connect the AIM cable labeled RS 232 RX with DB9 male Pin 2 Connect the AIM cable labeled RS 232 TX with DB9 male AIM RS232 RX AIM logger Ecu Channel Table ECU 1 PERF RPM RPM ECU 2 PERF TPS Throttle position ECU 3 PERF MAP Manifold pressure ECU 4 PERF IAT Intake air temperature ECU 5 PERF ECT Water temperature www aim sportline com 12 TD Racing Data Power Ecu communication protocols and AIM loggers connection User Manual Release 1 45 9 SUBARU SSM This chapter applies to all Subaru vehicles supporting the SSM Subaru Select Monitor with OBD2 connector from 1999 to 2007 The number of supported channels may vary and depends on car model and year of production 9 1 Connection with AIM Data logger In order to connect the data logger to the SUBARU SSM ECU AIM GPI01 interface is to be connected to both AIM logger and the ECU as shown below LOGGER ECU Channel Table blue AIM RS232RX white ECU SUBARU L1 0802 connector ECU_1 RPM RPM ECU 2 SPEED Vehicle speed ECU 3 TPS Throttle position ECU 4 ECT Engine coolant temperature 5 TURBO_PRESS Turbo pressure ECU_6 IN VVT R Variable valve timing right bank ECU 7 IN VVT L Variable valve timing left bank ECU 8 IGN ADV Ignition advance ECU 9 KNOCK CORR Knock angle correction ECU 10 FUEL LEV Fuel level ECU 11 NEUTRAL Neutral signal ECU 12 CLUTCH Clutch switch on off ECU 13
12. ogger sss enne einn 14 10 2 WALBRO A1BEN QQ rre recen renun m nam nau ntn Napa nul penn CRAS iuc cand ska ra RE ana 14 VEV deme ec 15 WOLF SD m 15 11 1 1 Connection with AIM Data logger sss eene 15 www aim sportline com 2 User Manual Ecu communication protocols and AIM loggers connection TID SR Release 1 45 Racing Data Power 1 ECU communication protocol general information The available channels list of Race Studio 2 Configuration window comes from the ECU communication protocol The communication protocol includes all the available channels of a generic Pectel DTA etc ECU The channels you may sample among the available channels list are function of the ECU model of the ECU configuration and of the wiring The number of channels that the data logger is able to sample depends on the ECU type and configuration on the wiring and on the sensors connected to the ECU itself To know which channels are acquired by AIM logger please check the logger channel page in Race Studio 2 software where all recorded channels are shown Note for specific information on ECU pinout and wirings always refer to the ECU user manual Here follow some examples of ECU configuration and connection with AIM loggers these information come from tests made by AIM research and development board or from deale
13. once a second to achieve the channel frequencies listed below and there are some unused ticks where nothing is transmitted Each packet consists of 5 bytes The first byte is the channel number the second is always the third and fourth are the channel value high byte first The fifth is the sum of the preceding four bytes Signal Channel E Transform Units 1 10 y x RPM 5 10 10 Km h 9 5 y x 1000 Bar 13 2 10 100 Deg C 17 2 y x 10 100 Deg 21 5 y x 1000 Bar 33 5 y x 100 Volts 45 10 10 Deg 69 10 y x MBar 97 2 y x 10 100 Deg 101 2 y x 10 100 Deg 105 10 y x 1000 Lambda 109 2 y x 10 100 Deg 113 5 y X 0 1 neutral 2 first 3 second 125 2 ECU specific error flags www aim sportline com 6 Ecu communication protocols and AIM loggers connection TID Racing Data Power 3 2 1 AIM PROT_UART ECU_1 AIM_RPM ECU 2 AIM WHEELSPEED ECU 3 AIM OILPRESS ECU 4 AIM OILTEMP ECU 5 WATERTEMP ECU 6 AIM FUELPRESS ECU 7 AIM BATTVOLT ECU 8 AIM THROTANG ECU 9 AIM MANIFPRESS ECU 10 AIM AIRCHARGETEMP ECU 11 AIM EXHTEMP ECU 12 AIM LAMBDA ECU 13 AIM FUELTEMP ECU 14 AIM GEAR ECU 15 AIM ERRORFLAG User Manual Release 1 45 RPM Vehicle speed Oil pressure Oil temperature Water temperature Fuel pressure Battery voltage Throttle position Manifold pressure Intake air temperature Exhaust temperature Lambda value Fuel temperature Engaged gear Error signal www aim sportli
14. rs or customers that have verified them www aim sportline com 3 Ecu communication protocols and AIM loggers connection TID User Manual ed Release 1 45 Racing Data Power 2 Supported ECUs general information AIM loggers support both CAN and RS232 communication protocols 2 1 ECU connection general information AIM loggers can communicate with the ECU both with a CAN protocol and with an RS232 protocol using respectively a CAN cable or a Serial cable The connection is usually done as below explained 2 1 1 Serial Communication Set Up The usual connection is as follows connect cable called RS232 RX with ECU TX and cable called GND with ECU GND as shown below LOG GND Cable labelled GND UGAD LOG RX ECU TX Cable labelled RS232 RX AIM LOGGER ECU Note this setup is all right for almost all ECU communicating with RS232 protocol there can anyway be ECUs that need LOG TX cable to be connected to ECU RX too For further information see the following paragraphs related to the single ECUs or single ECU documents published on AIM website www aim sportline com 2 1 2 CAN Communication Set Up The connection is as follow connect cable labelled CAN with ECU cable labelled CAN with ECU CAN and cable called GND with ECU GND as in the figure below LOG GND Cable labelled GND ECU GND LOG CAN Cable labelled CAN ECU CAN LOG CAN Cable labelled CAN ECU CAN
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