RaceCapturePro Sensors: Difference between revisions
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=Sensors= | =Sensors= | ||
==Temperature Sensors== | ==Temperature Sensors== | ||
===Engine Temperature=== | ===Engine Temperature (coolant / oil) (GM style resistance curve)=== | ||
{|class="wikitable" | {|class="wikitable" | ||
! align="left"| Mfg | ! align="left"| Mfg | ||
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! Part Numbers | ! Part Numbers | ||
! Mechanical | ! Mechanical | ||
! Notes | ! Notes | ||
|- | |- | ||
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*Pigtail Pico 5615pt | *Pigtail Pico 5615pt | ||
| 3/8" NPT threaded brass body and a 2 pin terminal. | | 3/8" NPT threaded brass body and a 2 pin terminal. | ||
| Can be used for air inlet temperature for normally aspirated engines | | Can be used for air inlet temperature for normally aspirated engines | ||
|- | |- | ||
| Line 29: | Line 26: | ||
*Pigtail Pico 5616pt | *Pigtail Pico 5616pt | ||
| 3/8" NPT threaded brass body and a 2 pin terminal. | | 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. | | 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. | ||
|} | |} | ||
====Analog channel configuration==== | |||
[[Image:GM_sensor_analog_calibration.png|thumb|left|283px]] | |||
= | {|class="wikitable" | ||
! 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 | |||
|} | |||
===Infrared Tire Temperature=== | ===Infrared Tire Temperature=== | ||
Revision as of 23:45, 29 December 2013
Sensors
Temperature Sensors
Engine Temperature (coolant / oil) (GM style resistance curve)
| Mfg | Pic | Pigtail | Part Numbers | Mechanical | Notes |
|---|---|---|---|---|---|
| GM | 
|
|
|
3/8" NPT threaded brass body and a 2 pin terminal. | Can be used for air inlet temperature for normally aspirated engines |
| GM | 
|
|
|
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. |
Analog channel configuration
| 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 |
Infrared Tire Temperature
| Mfg | Description | Pic | Pigtail | Part Numbers | Mechanical | Analog Configuration | Notes |
|---|---|---|---|---|---|---|---|
| TI | Infrared Temperature Sensor samples 3 positions on tire carcass | 
|
Needs dev board to connect to inputs. | Mouser Part #: 595-TMP006AIYZFT Manufacturer Part #: TMP006AIYZFT | *Texas Instruments : Board Mount Temperature Sensors Infrared Thermopile Sensor | <link to Race Capture digital channel configuration> | Can be used for 3 position tire temperature, when mounted within 3" of tire link |
Pulse Sensors
RPM
Wheel Speed
Pressure Sensors
Fluid Pressure
See brake pressure sensors (below) will be used to capture inline brake fluid pressure. Combining this input with brake pedal travel can provide a way to show brake fade in real time.
Tire Pressure
| Mfg | Description | Pic | Pigtail | Part Numbers | Mechanical | Analog Configuration | Notes |
|---|---|---|---|---|---|---|---|
| VDO | REDI-Sensor™ Multi-Application TPMS Sensors | 
|
self powered wireless | OEM style | custom | Wireless tire pressure monitoring system link | |
| ASL | Ford type throttle position sensor | 
|
turnkey unit | custom self powered wireless | Wireless tire pressure monitoring system includes wireless receiver and gauge link |
Boost / Vacuum
| Mfg | Description | Pic | Pigtail | Part Numbers | Mechanical | Analog Configuration | Notes |
|---|---|---|---|---|---|---|---|
| GM | 3.3 bar MAP sensor | 
|
|
|
fastens with clips | <link to Race Capture analog channel configuration> | 3.3 bar map sensor found on turbo GM products |
| DIY | Freescale MPX4250AP 2.5 bar MAP sensor | 
|
N/A | custom | custom | <link> | An extremely popular MAP sensor used in the Megajolt ignition and Megasquirt fuel injection systems. Can build up a simple circuit on perfboard and be powered by 5V v-ref from Race Capture |
Distance Sensors
Suspension Travel
| Mfg | Description | Pic | Pigtail | Part Numbers | Mechanical | Analog Configuration | Notes |
|---|---|---|---|---|---|---|---|
| Vishay Semiconductors | Specialized Optical Switch | 
|
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 | 
|
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 | 
|
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 | 
|
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 |
|---|---|---|---|---|---|---|---|
| ATE | Brake Fluid Pressure sensor | 
|
solder on tabs (2 wire) | If your SKU number is 34331150922 than you'll want to reference OE Number 34331150922, 34-33-1-150-922, 80506001237. | <link to Race Capture analog channel configuration> | threads into T fitting on brake line. Use professional brake fitting tools! link | |
| DIY | Freescale MPX4250AP 2.5 bar MAP sensor | 
|
on part | ATV type sensor | threads into T fitting on brake line. Use professional brake fitting tools! | avail at 150psi, or 2000psi, needs 12v supply link |
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.
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.
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.
