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Summary of Contents for RAE-SAN V1.02 OBD-Bridge
- Page 1 V1.02 OBD_Bridge Installation Manual Rae-San 19/12/2019...
- Page 2 Rae-San OBD_Bridge Congratulations on your purchase of a new Dash setup for your motorcycle. Your Kit should be as depicted in the pictures below- The kit will contain a number of items The OBD_Bridge Assembly • 2 x 8 way pluggable connectors for inputs •...
- Page 3 The System The Rae-San OBD_Bridge is designed to allow the monitoring and logging of your motorcycles( or car) important parameters over a Bluetooth connection using standad off the shelf software such as Torque Pro and RealDash To achieve this, it monitors and measures a set of configurable inputs, processes them and makes them available over the Bluetooth connection, by masquerading as an ECU with a ELM327 OBDII interface connected.
- Page 4 Adjustable tacho pulse per rpm. • Voltmeter calibration to allow for voltage drops. • Adjustments for tank and reserve capacity • Inputs can be reassigned if needed. • Sample Rate 10Hz for each input. • Selectable Filtering on Analog inputs – •...
- Page 5 The Rae-SAN OBD_Bridge comes preconfigured with a blue tooth name of RAE-SAN_OBD_BRIDGE. Your device should be set to scan for Bluetooth connections and when the Rae-San is found, can be paired. On some systems it may appear as a raw Bluetooth Address until after paring.
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Page 6: Configuration Setup
Configuration –setup There is provided a cut out in the OBD_Bridge body to allow for access to the usb connector after assembly of the instrument. In order to enter configuration mode – a serial terminal session of 8,N,1 @ 57600 Baud should be opened to the OBD_Brigde within 10s econds from powerup. - Page 7 Press “c” to enter the configuration menu. Once Again R or r for refresh • Q or q to quit this menu back to the previous – note this does not save any changes • S or s to save any changes to the EEPROM memory •...
- Page 8 Set the odometer x1000 to 100. Save the setting. Power off the meter. Power the meter while holding down Button A to enter configuration mode. Connect the serial terminal and set the odometer X1000 to 0 ...
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Page 9: Parameters - Setup
Parameters – Setup Next from the top level menu – press the P button to enter the parameter configuration page. Once again there are the standard keys S and s for saving the changes • Q and q to exit the menu back to the top level •... - Page 10 Here you can see that the %XVal2 of the OIL_TEMP entry is selected. Once changes are made S should be used to save them to the EEPROM. This will exit from Edit mode and the RED selection will disappear. Parameters – meanings The previous section dealt with the navigation of setting the parameter values –...
- Page 11 OUTMax These values are for the Output MAX These values need to relate to the real quantity measured or the PID being sent. As per the above ranges. Max values %X1,%YVal1; %X2,%YVal2 These parameters control the linearity of the scale between minimum and maximum. They map the input reading % to an output reading % that is displayed on the meter scale.
- Page 12 slow start gradual curve s-shaped sub-range linear straight Generally the curves will be linear or a slow start type of curve as often the speedo or tacho has a region at the bottom where it doesn’t respond – eg tacho below 500rpm and speedo below 10km/h. By setting the points appropriately the electronics will map to the markings to correctly display the value.
- Page 13 The value can be set to any of the above types as appropriate. The Average 1s should be suitable for most analogue sensors. The other options are used when dealing with pulsed sensors or PWM outputs from ECUs. Example Calculation of Settings Fuel Sensor Example Ok - lets look at a bit trickier example.
- Page 14 Chart Title Series1 Series2 Temp Sensor Example...
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Page 15: Display Values
Display Values This selection displays the current measured values and states. This allows you to check the current settings while you vary the inputs on the bike. - Page 16 OBD Bridge PIDs The ODB_Bridge uses standard PIDS (messages) to the software where possible but some of the quantities are not in the standard PID set, so some custom PIDS are used. All used data PIDS are listed in the table below. This should give you enough information to set up any custom quantities required.
- Page 17 The custom PID definitions in the setup I use are as follows. As the output ranges defined for the sensors affects the value reported and hence the PID values sent, these are shown in the other columns of the table to show the interdependence. Standard PIDS Standard Pids –...
- Page 18 01B2 Oil Pressure 0..1 Warn 01B5 Over Temp 0..1 01B6 Distance To 65536 6553.6 Int16(a:b)/10 6553.6 Empty 01B7 Avg Fuel 65536 l/100km 3276.8 Int16(a:b)/10 3276.8 Economy...
- Page 19 Wiring the OBD_Bridge. Shown below is a diagrammatic view from the rear of the gauge to indicate the wires and their colours. Typcial colours indicated. 2 PIN Power Connector (TOP) Wire Position Wire Wire Function RIGHT SIDE POWER - RED +12V power in – switched power from the bike LEFT SIDE POWER_GRND -GREEN GROUND connection –...
- Page 20 GROUND...
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Page 21: Jumper Settings
Jumper Settings The jumpers are used to select whether the ODB_Bridge is to provide a bias current of 33mA or not. If the gauges and sensors are fed by external instruments then biasing of the sensors is not required. If the OBD_Bridge is used without any existing gauges then it is likely the biasing is needed if there is no other power going to the sensors. - Page 22 The VF750 Magna ( and some others most likely) uses a scheme where the measurement is only pulsed every few seconds – and then it returns to a 12V reading – in this case it is necessary to capture the low point of the pulse and save this as the value –...
- Page 23 With power on and dash connected but engine not running – hold in the button > 10s • The Tach display will show the default fill amount of Capacity – reserve litres as detailed above. • Adjust the amount displayed to match the amount of fuel added to the tank – eg 14.2 l => 1420 RPM. •...
- Page 24 If it is biased from the OBD_Bridge – then it should be a reading of approximately 5.9 adc counts per ohm of resistance. The other option is to fit an electronic Piezo sensor – See the Rae-San adaptor. Tail/ Head Light Some bikes are equipped with sensors that report on the status of the headlight or taillight bulbs.
- Page 25 Oil Pressure Sensor The Rae-San Oil pressure sensor is a piezo ( solid state) pressure sensor with an adaptor board to provide 5V power to the sensor. It also provides a switched output that replicates the original pressure switch that drives the normal dash light.
- Page 27 Default Configuration When shipped the gauge will have data loaded in the 4 profiles Configuration Type Profile # Wheel Tach Volt High Temp Circ Beam Fuel High Value 000000 19.5 Parameters Profile 0 Type In_Min In_Max %Xval1 %YVal1 %Xval2 %YVal2 OutMin OutMax AdcFilter...
- Page 28 Profile 1 Type In_Min In_Max %Xval1 %YVal1 %Xval2 %YVal2 OutMin OutMax AdcFilter WATER TEMP FUEL LEVEL OIL TEMP OIL PRESSURE O2 SENSE TPS_ABS Profile 2 Type In_Min In_Max %Xval1 %YVal1 %Xval2 %YVal2 OutMin OutMax AdcFilter WATER TEMP FUEL LEVEL OIL TEMP OIL PRESSURE O2 SENSE TPS_ABS...
- Page 29 Profile 3 Type In_Min In_Max %Xval1 %YVal1 %Xval2 %YVal2 OutMin OutMax AdcFilter WATER TEMP FUEL LEVEL OIL TEMP OIL PRESSURE O2 SENSE TPS_ABS...
- Page 30 Furthermore fitting of any device constitutes acceptance and agreement to indemnify Rae-San (and/or entities trading as Rae-San) of all damages and liabilities that may arise in the event of accident, misfortune or failure of a device.
- Page 31 Rae-San (and/or Entities Trading as Rae-San). Rae-San (and/or Entities Trading as Rae- San) shall not be responsible for any type of incidental, consequential, or special damages. All implied warranties, including but not limited to those warranties of fitness and merchant accountability, are limited in the total duration to 12 months from the original purchase date.
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