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Changes for page Sensor Module

Last modified by Heimir Thordarson on 2026/07/05 12:56
From version 61.4
edited by Heimir Thordarson
on 2026/02/23 17:43
Change comment: There is no comment for this version
To version 58.3
edited by Heimir Thordarson
on 2026/02/11 19:49
Change comment: There is no comment for this version

Summary

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... ... @@ -24,7 +24,7 @@
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.
26 26  
27 -= Design =
27 += Wiring Diagram =
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  
... ... @@ -66,46 +66,6 @@
66 66  |(% style="width:71px" %)14|(% style="width:164px" %)CAN High 1|(% style="width:124px" %)CAN|(% style="width:70px" %)29|(% style="width:218px" %)CAN Low 2|(% style="width:58px" %)CAN|(% style="width:32px" %)44|(% style="width:192px" %)Main Power|(% style="width:90px" %)+24V
67 67  |(% style="width:71px" %)15|(% style="width:164px" %)CAN Low 1|(% style="width:124px" %)CAN|(% style="width:70px" %)30|(% style="width:218px" %)CAN High 2|(% style="width:58px" %)CAN|(% style="width:32px" %) |(% style="width:192px" %) |(% style="width:90px" %)
68 68  
69 -== Microcontroller Pinout ==
70 -
71 -|=(% style="width: 96px;" %)Physical Pin|=(% style="width: 102px;" %)Electrical Pin|=(% style="width: 991px;" %)Description
72 -|(% style="width:96px" %)1|(% style="width:102px" %) |(% style="width:991px" %)
73 -|(% style="width:96px" %)5|(% style="width:102px" %) |(% style="width:991px" %)
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90 -|(% style="width:96px" %)27|(% style="width:102px" %) |(% style="width:991px" %)
91 -|(% style="width:96px" %)28|(% style="width:102px" %) |(% style="width:991px" %)
92 -|(% style="width:96px" %)29|(% style="width:102px" %) |(% style="width:991px" %)
93 -|(% style="width:96px" %) |(% style="width:102px" %) |(% style="width:991px" %)
94 -|(% style="width:96px" %) |(% style="width:102px" %) |(% style="width:991px" %)
95 -|(% style="width:96px" %) |(% style="width:102px" %) |(% style="width:991px" %)
96 -|(% style="width:96px" %) |(% style="width:102px" %) |(% style="width:991px" %)
97 -|(% style="width:96px" %) |(% style="width:102px" %) |(% style="width:991px" %)
98 -|(% style="width:96px" %) |(% style="width:102px" %) |(% style="width:991px" %)
99 -|(% style="width:96px" %) |(% style="width:102px" %) |(% style="width:991px" %)
100 -|(% style="width:96px" %) |(% style="width:102px" %) |(% style="width:991px" %)
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105 -|(% style="width:96px" %) |(% style="width:102px" %) |(% style="width:991px" %)
106 -
107 -
108 -
109 109  == Air Temperature Sensor ==
110 110  
111 111  The air temperature sensor will be used to have a dynamic reference setpoint for the cooling system. This could reduce the current draw from the low voltage system compared to having a fixed reference point. This is because the regulator will not try to cool the water to a temperature lower than the ambient temperature. The sensor works as a resistor which varies depending on its temperature. Where in this case, the resistance lowers when the temperature increases (NTC). To make the microcontroller able to measure the changes in resistance, the thermistor is put into a voltage divider circuit.
... ... @@ -247,12 +247,4 @@
247 247  
248 248  The sensors output latency can be expected to be a lot shorter than the oil 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 oil temperature sensor acceptable with a cut-off frequency of 1591 Hz.
249 249  
250 -= Bill of Materials =
251 -
252 -== Circuit Board ==
253 -
254 -== Wiring Harness ==
255 -
256 -== Sensors ==
257 -
258 258