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Difference between revisions of "RaceCapturePro Sensors"

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| colspan="6" align="center" style="background-color:#cc9999;" | <h1>Temperature Sensors</h1>
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| colspan="6" align="center" | <h2>GM-Style</h2>
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! Mfg / Part #
 
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* Due to the fragility of the sensing bulb, it is necessary to pot the base of the sensor leads with sensor-safe silicone when used in high vibration environments.
 
* Due to the fragility of the sensing bulb, it is necessary to pot the base of the sensor leads with sensor-safe silicone when used in high vibration environments.
 
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| colspan="6" align="center" | <h2>AEM</h2>
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|AEM-30-2012
 
|AEM-30-2012
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| colspan="6" align="center" | <h2>Infrared Sensors</h2>  
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! Mfg / Part #
 
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*[http://www.melexis.com/Infrared-Thermometer-Sensors/Infrared-Thermometer-Sensors/MLX90620-776.aspx Technical Information]
 
*[http://www.melexis.com/Infrared-Thermometer-Sensors/Infrared-Thermometer-Sensors/MLX90620-776.aspx Technical Information]
 
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| colspan="6" align="center" | <h2>Thermocouple Sensors</h2>
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|Analog Devices AD597 Type K Thermocouple amplifier
 
|Analog Devices AD597 Type K Thermocouple amplifier
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* [http://www.maximintegrated.com/datasheet/index.mvp/id/7953 Technical Information]
 
* [http://www.maximintegrated.com/datasheet/index.mvp/id/7953 Technical Information]
 
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| colspan="6" align="center" style="background-color:#cc9999;" | <h1>Pressure Sensors</h1>
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| colspan="6" align="center" style="background-color:#EB9F12;" | <h1>Pressure Sensors</h1>
 
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| colspan="6" align="center"| <h2>Fluid Pressure</h2>
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| colspan="6" align="center" style="background-color:#FFC863;" | <h2>Fluid Pressure</h2>
 
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| colspan="6" | These sensors are appropriate for measuring fluid pressures in an engine. Not appropriate for measuring manifold boost or vacuum as these are relative pressure sensors. Use an absolute pressure sensor instead.
 
| colspan="6" | These sensors are appropriate for measuring fluid pressures in an engine. Not appropriate for measuring manifold boost or vacuum as these are relative pressure sensors. Use an absolute pressure sensor instead.
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* Other sensor ranges are possible - e.g. 10, 30, 150 bar, with a consistent linear output.
 
* Other sensor ranges are possible - e.g. 10, 30, 150 bar, with a consistent linear output.
 
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| colspan="6" align="center" | <h2>Manifold Pressure (MAP) Sensors</h2>
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| colspan="6" | <h2>Tire Pressure</h2>
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! Mfg / Part #
 
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* Analysis / Reverse engineering work queued
 
* Analysis / Reverse engineering work queued
 
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| colspan="6" align="center" style="background-color:#cc9999;" | <h1>Pulse/Speed/RPM Sensors</h1>
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| colspan="6" align="center" style="background-color:#EB9F12;" | <h1>Pulse/Speed/RPM Sensors</h1>
 
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| colspan="6" align="center"| <h2>RPM</h2>
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| colspan="6" align="center" style="background-color:#FFC863;" | <h2>RPM</h2>
 
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Revision as of 20:18, 4 January 2014

Sensors

Temperature Sensors

GM-Style

Mfg / Part # Image Pigtail Mechanical Notes Analog Channel Configuration
  • Wells SU109
  • SMP TX3
SU109 C.jpg 5615pt.png

Pico 5615pt

3/8" NPT threaded brass body and a 2 pin terminal. Can be used for air inlet temperature for normally aspirated engine * Using 2.2K pullup resistor
GM sensor analog calibration.png
Volts Scaled Value (Degrees F)
0.37 212.00
0.51 178.00
1.99 104.0
2.47 72.0
4.24 23.0


  • Wells SU107
  • SMP AX1
SU107 C.jpg 5616pt.png

Pico 5616pt

3/8" NPT threaded brass body and a 2 pin terminal.
  • Use for measuring air inlet temperature.
  • Exposed sensing element, necessary for boosted engines where fast response times are necessary.
  • Due to the fragility of the sensing bulb, it is necessary to pot the base of the sensor leads with sensor-safe silicone when used in high vibration environments.

AEM

AEM-30-2012 AEM-30-2012.jpg
  • 1/8" NPT
  • Plug set and pins are included with kit
AEM-30-2012 analog calibration.png
Volts Scaled Value (Degrees F)
0.40 302.00
0.87 239.00
1.88 176.0
3.2 122.0
4.72 32.0

Infrared Sensors

Mfg / Part # Image Notes
Mylexis MLX90620 Mylexis MLX90620.jpg
  • 16x4 matrix temperature sensor with I2C digital output.
  • The matrix temperature sensor with a 60 degree field of view makes it ideal for a one-sensor tire temperature solution
  • Interface module queued for development
  • Technical Information

Thermocouple Sensors

Analog Devices AD597 Type K Thermocouple amplifier Soic-8.jpg Low cost, easy to use thermocouple amplifier with 10mv/C temperature output directly from a K-Type thermocouple. Ideal for creating a simple thermocouple to 0-5v sensor.
Maxim MAX31851 Thermocouple amplifier Soic-8.jpg Versatile thermocouple amplifier with 1-wire (I2C) digital interface. Ideal for monitoring multiple sensors

Pressure Sensors

Fluid Pressure

These sensors are appropriate for measuring fluid pressures in an engine. Not appropriate for measuring manifold boost or vacuum as these are relative pressure sensors. Use an absolute pressure sensor instead.
Mfg / Part # Image Pigtail Mechanical Notes Analog Channel Configuration
AEM 30-2131-150 AEM-30-2131-150.jpg 3 pin GM connector 1/8" NPT
  • 150 PSI pressure sensor, appropriate for oil and fuel.
  • Linear response with an output between 0.5v and 4.5v
  • Technical Information
  • Default kit from AEM includes pigtail
  • Since these type of sensors have a linear output, replace the 4.5v value with the max pressure of the device in the units you prefer. e.g. 10 bar, 150 psi, etc.
  • Repeat the value through the rest of the calibration table.


150psi sensor analog calibration.png
Volts Scaled Value (PSI)
0.5 0.0
4.5 150.0
4.5 150.0
4.5 150.0
4.5 150.0


Various 10 bar 150 psi ss pressure sensor.jpg 3 pin GM connector 1/8" NPT port
  • 10 bar (145 PSI) stainless steel pressure sensor.
  • Linear response with an output between 0.5v and 4.5v
  • Other sensor ranges are possible - e.g. 10, 30, 150 bar, with a consistent linear output.

Manifold Pressure (MAP) Sensors

  • Sensor: 12223861 (GM)
  • Pigtail: 15305891 (GM) PT1035 (AC Delco)
GM 3bar map sensor.jpg Pigtail 88987997.jpg
  • Bracket for firewall mounting
  • vacuum port
3 bar MAP sensor
GM 3 bar map sensor analog calibration.png
Volts Manifold Pressure (KPa)
0 3.6
1.25 80.0
2.5 159
3.75 237
5.0 315.0
Freescale MXP4250AP MPX4250ap.png 2.5 bar MAP sensor
  • An extremely popular MAP sensor used in the Megajolt ignition and Megasquirt fuel injection systems.
  • Can be used in a simple circuit and powered by the 5v voltage reference from Race Capture

Tire Pressure

Mfg / Part # Image Notes
Schrader
  • OEM TMPS System
  • Schrader TPMS receiver outputs tire pressure data on the CAN bus. would need to reverse engineer CAN bus protocol.
  • Analysis / Reverse engineering work queued

Pulse/Speed/RPM Sensors

RPM

Mfg / Part # Image Notes
Autosport Labs CoilX <image> The CoilX sensor module is designed to safely interface the noisy, high voltage RPM signal at the ignition coil pack primary into a clean signal that RaceCapture/Pro can process.

Wheel Speed

Distance Sensors

Suspension Travel

Mfg Description Pic Pigtail Part Numbers Mechanical Analog Configuration Notes
Vishay Semiconductors Specialized Optical Switch TCND5000.jpg 3-pin connector Mouser Part #:782-TCND5000 Manufacturer Part #:TCND5000 Optical Switches, Specialized Reflective Sensor w/PIN Photodiode Out <link> Optical distance sensor to be used for pedal travel as well, providing there is a target to sense Link

Angle Sensors

Steering Angle

Mfg Description Pic Pigtail Part Numbers Mechanical Analog Configuration Notes
DIY Sharp GP2D12 optical distance sensor Sensor GP2D12.jpg 3-pin connector GP2D12 custom <link> Optical distance sensor measures from 10 to 80 cm and outputs a voltage corresponding to that distance. To measure suspension travel, install a unit at each corner of car, targeting the road surface. May also be used for pedal travel as well, providing there is a target to sense. Create a target latched to the steering rod and use the travel out and back of the steering rack rod to denote the travel left and right for steering. This measures true steering(and ignores the speed sensitivity of steering systems, showing actual tire angle result, not steering wheel rotation). It also provides a quick way to verify alignment issues as location vs. gps/accelerometer travel in the "Straight ahead" direction will be at varying angles when alignment issues are present.

Throttle Position

Mfg Description Pic Pigtail Part Numbers Mechanical Analog Configuration Notes
ASL Ford type throttle position sensor TPS-45.jpg see pigtail below Standard Motors SMP TH45 equivalent custom Existing style Throttle position sensor available from AutoSport Labs link
ASL Ford type throttle position sensor 5752pt.jpg 3-pin connector fits SMP TH45 above custom Existing style Throttle position sensor available from AutoSport Labs link

Brake Position/Pressure

Mfg Description Pic Pigtail Part Numbers Mechanical Analog Configuration Notes

Linear Sensors

Wiring

Temperature Sensor

Temperature sensors are passive devices that measure temperature through the use of a thermistor, a resistor that varies resistance with temperature.

Temp sensor connection.png

We recommend using a dedicated, two wire ECU-style sensor for best results.

Pullup resistor

A pullup resistor is needed to create the necessary voltage divider circuit so RaceCapture/Pro's analog input can sense temperature as a varying voltage. This pullup resistor is connected to the 5v reference on the RaceCapture/Pro terminal block.

Use a 2.2K ohm pull-up resistor for high resistance ECU style sensors such as:

  • GM-style TX3 / SU109 Coolant
  • GM-style AX1 / SU107 Air Inlet Temp
  • AEM 30-2012 1/8" NPT fluid temperature sensor

Use a 220 ohm pull-up resistor for low resistance gauge type sensors such as:

  • VDO 323-095, 325-002

Sensor Ground

Two wire temperature sensors have one sense lead and one ground lead. for best accuracy, connect the ground lead to the same ground point as RaceCapture/Pro.

One wire sensors have the ground as the body of the sensor. Ensure the engine is properly grounded to the chassis via multiple ground straps.

Pressure Sensors

3 Wire Active Sensors

Active pressure sensors are typically powered with 5V and provide a voltage output that varies with the pressure measured. Typically they have a linear response and are very easy to calibrate.

((picture of active sensor))


Sensor Breakout Board

We've created an optional sensor breakout / distribution board that will make it easier to use sensors that require pullup resistors as well as making available multiple ground and 5V Vref connections. The built-in pullup resistors are easily disabled by breaking a designated trace on the board. This board is compact; enough to be bundled inline with your wiring harness. SensorX board.png

SensorX

Hardware Expansion board <coming soon> look for it to fit into the RJ-45 jack in the back of the RaceCapture Pro. It can be used to develop your own sensors, or hook in some of the cleverer concepts we've come up with!

Adapter Board <coming soon> look for it to fit into the GPIO pins on the green removable bus in the back of the RaceCapture Pro.