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Changes for page Sensor Module

Last modified by Heimir Thordarson on 2026/07/05 12:56
From version 55.1
edited by Heimir Thordarson
on 2026/01/27 18:03
Change comment: There is no comment for this version
To version 46.4
edited by Heimir Thordarson
on 2026/01/27 15:30
Change comment: There is no comment for this version

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1 -{{wikibox title="Sensor Module" image="https://wiki.alignracing.no/bin/download/Electrical/Sensor%20Module/WebHome/ASM_AR26.png?rev=1.1" caption="3D model of the Sensor Module from Altium Designer" width="30" labelWidth="50"}}
1 +{{wikibox title="Sensor Module" image="https://wiki.alignracing.no/bin/download/Electrical/Sensor%20Module/WebHome/ASM_AR26.png?rev=1.1" caption="3D model of the Sensor Module from Altium Designer" width="25" labelWidth="50"}}
2 2  Voltage = 4.5V - 40V
3 3  Fuse Current = 125mA
4 4  Sensor Inputs = 13
... ... @@ -5,21 +5,8 @@
5 5  Voltage divider Inputs = 2
6 6  3V3 Thermistor Inputs = 7
7 7  5V Pressure Inputs = 4
8 -Communication Protocol = CAN FD
9 -Max Data rate = 1 Mbps
10 -
11 11  {{/wikibox}}
12 12  
13 -= Table of Contents =
14 -
15 -{{content}}
16 -{{content}}
17 -{{content}}
18 -{{toc reference="Electrical.Sensor Module.WebHome"/}}
19 -{{/content}}
20 -{{/content}}
21 -{{/content}}
22 -
23 23  = Description =
24 24  
25 25  The Sensor module is designed to measure any extra analog signals rear of the firewall. For AR26, the module is designed to measure two suspension displacement sensors, two oil temperature, four water pressure, four water temperature, and one air temperature sensor. All of the measurements are then transmitted to a CAN network, which there are two of.
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28 28  
29 29  In the following section, how the sensor module is connected will be covered. The connector for the sensor module is a [[High-Density d'sub-44>>https://www.te.com/en/product-2311770-1.html]] which is directly solderen onto the circuit board. The plug needed for this system is the [[204517-3>>doc:Sandbox.TestPage3]], which uses crimps instead of solder cups which is common for the dsub connectors
30 30  
31 -[[image:AR26_ASM pinout.png||height="287" width="616"]]
18 +[[image:AR26_ASM pinout.png||height="214" width="457"]]
32 32  
33 33  In the figure above, the pinout shows how the pins are divided. Each box shows which pins belong together for each usecase, where the red box is the power input. Yellow boxes are for each canbus network, while the green box is for each sensor used in AR26.
34 34  
... ... @@ -153,14 +153,10 @@
153 153  
154 154  where:
155 155  
156 -* {{mathjax}}\(x\){{/mathjax}} = The mechanical placement excluding the dead length (178mm).
143 +* {{mathjax}}\(x\){{/mathjax}} = The mechanical placement excluding the dead length.
157 157  * {{mathjax}}\(V_s\){{/mathjax}} = The supply voltage of the linear potentiometer, in this case it is 3.3 {{mathjax}}\(V\){{/mathjax}}.
158 158  * {{mathjax}}\(V_{out}\){{/mathjax}} = The output voltage of the linear potentiometer. ranging from 0.033{{mathjax}}\(V\){{/mathjax}} to 3.267{{mathjax}}\(V\){{/mathjax}}.
159 159  
160 160  === Filtering ===
161 161  
162 -The sensors output latency can be expected to be a lot shorter than the air temperature sensor as the sensor is just a variable sensor based on placement. The limiting factor for the system which uses this information is the CAN-BUS messages from the inverters which send the information each 6.25 milliseconds. This means that the cut-off frequency cannot be any lower than 160 Hz, which will make the same type of low pass filter from the air temperature sensor acceptable with a cut-off frequency of 1591 Hz.
163 -
164 -== Cooling Sensors ==
165 -
166 -The cooling sensors for the AR26 can is the
149 +The sensors output latency can be expected to be a lot shorter than the air temperature sensor as the sensor is just a variable sensor based on placement. This is why the