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Wiki source code of Power controller

Version 37.1 by Mathias Larsen on 2026/09/23 18:23
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Mathias Larsen 31.2 1 {{wikibox title="Power controller" image="https://wiki.alignracing.no/bin/download/Electrical/Power%20controller/WebHome/Screenshot%202026-09-22%20211347.png?rev=1.1" caption="3D model of the Power controller from Altium Designer" width="30" labelWidth="50"}}
2 Supply voltage=12–24 V DC
3 Fused circuits=9 (5 × 24 V outputs, fan outputs, digital outputs, 12 V circuit, internal electronics)
4 24 V outputs=5
5 24 V fan outputs=2 (shared fuse)
6 12 V outputs=2
7 Digital outputs (shared fuse)=2 × 12 V switched (5 A), 2 × 24 V switched (330 mA), 2 × PWM
8 Communication interface=CAN FD
Mathias Larsen 37.1 9 Maximum data rate=1 Mbps
Mathias Larsen 28.1 10 {{/wikibox}}
11
Mathias Larsen 37.1 12 == Table of contents ==
Mathias Larsen 22.1 13
Mathias Larsen 24.3 14 ----
15
Mathias Larsen 22.1 16 {{toc/}}
17
Mathias Larsen 28.1 18 == Pinout ==
Mathias Larsen 6.2 19
Mathias Larsen 28.1 20 === Connector pinout ===
21
Mathias Larsen 37.1 22 |=(% style="width: 281px;" %)Pin|=(% style="width: 135px;" %)Signal|=(% style="width: 157px;" %)Comment|=(% style="width: 132px;" %)
Mathias Larsen 14.9 23 |(% style="width:281px" %)1|(% style="width:135px" %)CANH|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 14.6 24 |(% style="width:281px" %)2|(% style="width:135px" %)CANL|(% style="width:157px" %) |(% style="width:132px" %)
25 |(% style="width:281px" %)3|(% style="width:135px" %)FAN 1 PWM|(% style="width:157px" %) |(% style="width:132px" %)
26 |(% style="width:281px" %)4|(% style="width:135px" %)FAN 2 PWM|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 37.1 27 |(% style="width:281px" %)5|(% style="width:135px" %)GND|(% style="width:157px" %)Solder blob|(% style="width:132px" %)
28 |(% style="width:281px" %)6|(% style="width:135px" %)GND|(% style="width:157px" %)Solder blob|(% style="width:132px" %)
29 |(% style="width:281px" %)7|(% style="width:135px" %)GND|(% style="width:157px" %)Solder blob|(% style="width:132px" %)
30 |(% style="width:281px" %)8|(% style="width:135px" %)GND|(% style="width:157px" %)Solder blob|(% style="width:132px" %)
Mathias Larsen 14.7 31 |(% style="width:281px" %)9|(% style="width:135px" %)Accumulator|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 14.6 32 |(% style="width:281px" %)10|(% style="width:135px" %)Front|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 14.7 33 |(% style="width:281px" %)11|(% style="width:135px" %)Power fan|(% style="width:157px" %) |(% style="width:132px" %)
34 |(% style="width:281px" %)12|(% style="width:135px" %)Power fan|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 37.1 35 |(% style="width:281px" %)13|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 14.7 36 |(% style="width:281px" %)14|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
37 |(% style="width:281px" %)15|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
38 |(% style="width:281px" %)16|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
39 |(% style="width:281px" %)17|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
40 |(% style="width:281px" %)18|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
41 |(% style="width:281px" %)19|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
42 |(% style="width:281px" %)20|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
43 |(% style="width:281px" %)21|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
44 |(% style="width:281px" %)22|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
45 |(% style="width:281px" %)23|(% style="width:135px" %)GND|(% style="width:157px" %) |(% style="width:132px" %)
46 |(% style="width:281px" %)24|(% style="width:135px" %)12V|(% style="width:157px" %) |(% style="width:132px" %)
47 |(% style="width:281px" %)25|(% style="width:135px" %)12V|(% style="width:157px" %) |(% style="width:132px" %)
Mathias Larsen 37.1 48 |(% style="width:281px" %)26|(% style="width:135px" %)12V power pump 1|(% style="width:157px" %) |(% style="width:132px" %)
49 |(% style="width:281px" %)27|(% style="width:135px" %)12V power pump 2|(% style="width:157px" %) |(% style="width:132px" %)
50 |(% style="width:281px" %)28|(% style="width:135px" %)GND|(% style="width:157px" %)Solder blob|(% style="width:132px" %)
51 |(% style="width:281px" %)29|(% style="width:135px" %)GND|(% style="width:157px" %)Solder blob|(% style="width:132px" %)
52 |(% style="width:281px" %)30|(% style="width:135px" %)GND|(% style="width:157px" %)Solder blob|(% style="width:132px" %)
53 |(% style="width:281px" %)31|(% style="width:135px" %)Buzzer|(% style="width:157px" %)Is brake light in wiring harness|(% style="width:132px" %)
54 |(% style="width:281px" %)32|(% style="width:135px" %)Brake light|(% style="width:157px" %)Is buzzer in wiring harness|(% style="width:132px" %)
55 |(% style="width:281px" %)33|(% style="width:135px" %)24V|(% style="width:157px" %)Reserve|(% style="width:132px" %)
56 |(% style="width:281px" %)34|(% style="width:135px" %)24V|(% style="width:157px" %)Reserve|(% style="width:132px" %)
57 |(% style="width:281px" %)35|(% style="width:135px" %)24V|(% style="width:157px" %)Sensor card|(% style="width:132px" %)
Mathias Larsen 14.2 58
Mathias Larsen 37.1 59 === Microcontroller pinout ===
Mathias Larsen 6.2 60
Mathias Larsen 37.1 61 The power controller uses a microcontroller to control the pumps, fans, buzzer and brake light. It also handles current monitoring and the LED indicators. The microcontroller used in this system is the STM32G431CBT6.
Mathias Larsen 7.1 62
63
Mathias Larsen 37.1 64 |=Physical pin|=Electrical pin|=Description
65 |1|VBAT|Backup battery supply, used if an RTC is needed (connected to +3V3 in this design)
66 |5|OSC_IN|Clock input (8 MHz oscillator)
67 |7|NRST|Active-low reset, can be connected to a button (connected to +3V3)
68 |8|PA0|Analog signal: Current 6, supply 24 V reserve
69 |9|PA1|Analog signal: Current 7, supply 24 V reserve
70 |10|PA2|Analog signal: Current 5, supply sensor card
71 |11|PA3|Analog signal: Current 4, supply front
72 |12|PA4|Analog signal: Current 3, supply accumulator
73 |13|PA5|Analog signal: Current 2, supply fans
74 |14|PA6|Digital output: LED 9
75 |15|PA7|Digital output: LED 2
76 |16|PB0|Analog signal: Current 8, supply buzzer and brake light
77 |17|PB1|PWM: Enable fan 1
Mathias Larsen 7.4 78 |18|PB2|Input: V-sense
Mathias Larsen 5.1 79 |19|VSSA|Voltage source: Ground
Mathias Larsen 37.1 80 |20|VREF|Voltage reference (internal voltage reference)
Mathias Larsen 5.1 81 |21|VDDA|Voltage source: Power (+3V3)
Mathias Larsen 7.4 82 |22|PB10|Digital output: LED 8
Mathias Larsen 5.1 83 |23|VSS|Voltage source: Ground
84 |24|VDD|Voltage source: Power (+3V3)
Mathias Larsen 37.1 85 |25|PB11|Analog signal: Current 1, internal components
86 |26|PB12|Analog signal: Current 9, supply 12 V pumps, inverter and data logger
87 |29|PB15|PWM: Enable fan 2
88 |30|PA8|Digital output: Enable buzzer (on the car it is the brake light)
89 |31|PA9|Digital output: Enable brake light (on the car it is the buzzer)
90 |32|PA10|Input: ASMS signal
91 |33|PA11|CAN bus RXD
92 |34|PA12|CAN bus TXD
Mathias Larsen 5.1 93 |35|VSS|Voltage source: Ground
94 |36|VDD|Voltage source: Power (+3V3)
95 |37|PA13|SWDIO
96 |38|PA14|SWCLK
Mathias Larsen 9.2 97 |40|PB3|Digital output: LED 3
98 |41|PB4|Digital output: LED 4
99 |42|PB5|Digital output: LED 5
Mathias Larsen 37.1 100 |43|PB6|Digital output: Enable pump 1
101 |44|PB7|Digital output: Enable pump 2
Mathias Larsen 9.2 102 |45|PB8|Digital output: LED 6
Mathias Larsen 37.1 103 |46|PB9|Digital output: LED 7
Mathias Larsen 5.1 104 |47|VSS|Voltage source: Ground
105 |48|VDD|Voltage source: Power (+3V3)
Mathias Larsen 2.1 106
Mathias Larsen 23.7 107 == Distribution circuit ==
Mathias Larsen 23.4 108
Mathias Larsen 23.8 109 [[image:1790100104451-169.png]]
110
Mathias Larsen 23.7 111 === Green LED ===
Mathias Larsen 23.4 112
Mathias Larsen 37.1 113 The green LED indicates whether the fuse is intact.
Mathias Larsen 23.5 114
Mathias Larsen 23.4 115 [[image:1790098808447-123.png]]
116
Mathias Larsen 23.7 117 === Current sense ===
118
Mathias Larsen 33.24 119 ==== Shunt resistor ====
120
Mathias Larsen 37.1 121 A 2 mΩ shunt resistor is placed in series with the load. The voltage drop across it is 2 mV per ampere of current (0.002 V/A).
Mathias Larsen 33.42 122
Mathias Larsen 33.25 123 [[image:1790100157872-786.png]]
Mathias Larsen 33.24 124
Mathias Larsen 37.1 125 ==== Amplifier ====
Mathias Larsen 33.24 126
Mathias Larsen 37.1 127 The amplifier is a quad-channel current sense amplifier with a gain of 200 V/V. When the measured voltage drop passes through the amplifier, the output is therefore 0.4 V per ampere.
Mathias Larsen 33.32 128
Mathias Larsen 33.9 129 ==== Filter ====
130
Mathias Larsen 37.1 131 The filter is a low-pass filter with a cutoff frequency of 1.6 kHz.
Mathias Larsen 33.9 132
Mathias Larsen 37.1 133 === Power amplifier ===
Mathias Larsen 33.9 134
Mathias Larsen 23.9 135 [[image:1790101431805-672.png]]
136
Mathias Larsen 23.7 137 === Voltage measurement ===
138
Mathias Larsen 37.1 139 A voltage divider with a ratio of 1:11 is used, so 24 V corresponds to 2.182 V on the microcontroller pin.
Mathias Larsen 33.7 140
Mathias Larsen 23.9 141 [[image:1790101449150-901.png]]
142
Mathias Larsen 37.1 143 === 12 V supply (did not work) ===
Mathias Larsen 23.10 144
Mathias Larsen 37.1 145 The buck converter overheated under load and made a whining sound.
Mathias Larsen 24.1 146
Mathias Larsen 23.11 147 [[image:1790102044737-969.png||height="368" width="925"]]
148
Mathias Larsen 37.1 149 A Mateksys PM20S-2 power module was used as a quick fix to provide 12 V for the competition.
Mathias Larsen 23.11 150
Mathias Larsen 37.1 151 === 5 V, 3.3 V and CAN bus ===
Mathias Larsen 23.11 152
Mathias Larsen 37.1 153 Uses the standard Align template.
Mathias Larsen 23.11 154
Mathias Larsen 33.3 155 == Control logic ==
Mathias Larsen 14.20 156
Mathias Larsen 37.1 157 === Sourced from the microcontroller ===
Mathias Larsen 14.22 158
Mathias Larsen 37.1 159 The programmable red light is part of the same RGB LED.
Mathias Larsen 23.1 160
Mathias Larsen 37.1 161 Current is sourced directly from the microcontroller through a 350 Ω series resistor.
Mathias Larsen 23.3 162
163 [[image:1790098512666-432.png]]
164
Mathias Larsen 37.1 165 === High-side switching ===
Mathias Larsen 14.22 166
Mathias Larsen 37.1 167 ==== Buzzer and brake light ====
Mathias Larsen 35.4 168
Mathias Larsen 37.1 169 The buzzer and brake light are switched on the high side using an N-channel MOSFET (BSS123NH6327XTSA1) that drives a P-channel MOSFET (BSS83PH6327XTSA1).
170
Mathias Larsen 35.1 171 [[image:1790181075885-591.png||height="343" width="367"]]
Mathias Larsen 34.4 172
Mathias Larsen 37.1 173 ==== Pump ====
Mathias Larsen 35.1 174
Mathias Larsen 37.1 175 The N-channel MOSFET (BSS123NH6327XTSA1) is the same as for the buzzer and brake light, but the P-channel MOSFET (BSC084P03NS3GATMA1) has a much higher current rating.
Mathias Larsen 35.2 176
Mathias Larsen 34.4 177 [[image:1790181054296-268.png||height="306" width="371"]]
178
Mathias Larsen 17.1 179 == Known issues ==
Mathias Larsen 14.20 180
Mathias Larsen 37.1 181 * The 12 V supply did not work.
182 * The current measurement has not been tested.
Mathias Larsen 14.20 183
Mathias Larsen 14.1 184 == Features to add ==
185
Mathias Larsen 37.1 186 * Add MOSFETs to cut power if the LV battery voltage is too low, to save power.
187 * Add power distribution for the autonomous system.
Mathias Larsen 16.1 188
Mathias Larsen 37.1 189 == BOM (bill of materials) ==
Mathias Larsen 17.1 190
Mathias Larsen 21.1 191 |=Part Number|=Description|=Ref Des|=Qty|=Manufacturer|=MPN
192 |CC0603KRX5R6BB475|Chip Capacitor, 4.7µF +/-20%, 10V, 0603|C1|1|Yageo Group|CC0603KRX5R6BB475
193 |CL10B104KA8NNNC|MLCC, 0.1 uF, 25V, ±10%, X7R, 0603|C2, C3, C4, C8, C9, C10, C14, C15, C16|9|Samsung Electro-Mechanics|CL10B104KA8NNNC
194 |CL10B105KA8NFNC|MLCC, 1uF, 25V, 10%, X7R, 0603|C5, C7|2|Samsung Electro-Mechanics|CL10B105KA8NFNC
Mathias Larsen 37.1 195 |CL10B103KB8NNNC|MLCC, 10nF, 50V, +125C, X7R, ±10%, 0603|C6, C101, C201, C301, C401, C501, C601, C701, C801, C901|10|Samsung Electro-Mechanics|CL10B103KB8NNNC
Mathias Larsen 21.1 196 |885012206020|MLCC, General Purpose, 0603, 100nF, 10V|C11|1|Wurth Elektronik|885012206020
197 |885012006051|MLCC, General Purpose, 0603, 10pF, 50V|C12, C13|2|Wurth Elektronik|885012006051
198 |885012208124|MLCC, General Purpose, 1206, 2.2µF, 100V|C17, C19|2|Wurth Elektronik|885012208124
199 |885012108022|MLCC, General Purpose, 1206, 10µF, 50V|C18|1|Wurth Elektronik|885012108022
200 |885012206071R|MLCC, General Purpose, 0603, 100nF, 25V|C20|1|Wurth Elektronik|885012206071R
201 |885012107014|MLCC, General Purpose, 0805, 10µF, 16V|C21, C22|2|Wurth Elektronik|885012107014
202 |MBASU105SB5104KFNA01|MLCC, 50V, 10%, X5R, 0.1uF, 0402|C23, C24|2|TAIYO YUDEN|MBASU105SB5104KFNA01
203 |GRM32ER71H475KA88L|MLCC, 1210, 4.7uF, 50V, ±10%, X7R|C902, C903|2|Murata|GRM32ER71H475KA88L
204 |GRM188R71A225KE15D|MLCC, 0603, 2.2uF, X7R, 10V|C904|1|Murata|GRM188R71A225KE15D
205 |CC0402KRX7R6BB104|Chip Capacitor, 100nF +/-20%, 10V, 0402|C905, C908|2|Yageo Group|CC0402KRX7R6BB104
206 |GRM1555C1H102JA01J|MLCC, 0402, 1nF, 50V, ±5%, C0G|C906|1|Murata|GRM1555C1H102JA01J
207 |GRM1555C1H4R3CA01D|MLCC, 0402, 4.3pF, 50V, C0G, ±0.25pF|C907|1|Murata|GRM1555C1H4R3CA01D
208 |GRM32ER61E226KE15L|MLCC, 1210, 22uF, 25V, X5R|C909, C910, C911, C912|4|Murata|GRM32ER61E226KE15L
209 |824094024|WE-TVS TVS Diode, SOT23-3L, 2 Channel, 24V, 38pF|D1|1|Wurth Elektronik|824094024
210 |824500261|WE-TVSP SMT Power TVS Diode, DO-214AC, 400W, 26VDC|D2|1|Wurth Elektronik|824500261
211 |150282M167310|WL-SFTD Full-color Top LED, 2828, R/G/B, 70°|D101, D201, D301, D402, D501, D601, D701, D801, D901|9|Wurth Elektronik|150282M167310
212 |01550900DR|Fuseholder - Acs Nano|F101, F201, F301, F401, F501, F601, F701, F801, F901, F902, F903, F904|12|Littelfuse|01550900DR
213 |0466.125NR|Electric Fuse, Very Fast Blow, 0.125A, 125VAC/VDC, 1206|F102|1|Littelfuse|0466.125NR
214 |776231-1|Conn Shrouded Header, HDR 35 POS, 4mm, Thru-Hole|J1|1|TE Connectivity|776231-1
215 |76829-0002|Mega-Fit Straight Male Header, 2x2, 5.7mm Pitch|J2|1|Molex|76829-0002
Mathias Larsen 37.1 216 |(4 pin header)|2.54mm pitch 1x4 vertical header|J3|1|Generic|
Mathias Larsen 21.1 217 |44914-0401|Conn Header Vert 4POS 3mm|J4|1|Molex|44914-0401
218 |1461247-3|Relay, Gen Purpose, SPST, 8A, 24V|K1|1|TE Connectivity|OJ-SH-124LMH,000
Mathias Larsen 37.1 219 |784234510|WE-CNSA Common Mode Line Filter, 1210, 7850Ω, 200mA|L1|1|Wurth Elektronik|784234510
Mathias Larsen 21.1 220 |74438323100|WE-MAPI SMT Power Inductor, 2510, 10µH, 0.9A, 733mΩ|L2, L3|2|Wurth Elektronik|74438323100
Mathias Larsen 37.1 221 |XAL7070-651MEB|General Purpose Inductor, 0.65uH, 20%, 3028|L901|1|Coilcraft|XAL7070-651MEB
Mathias Larsen 21.1 222 |BSS123NH6327XTSA1|MOSFET N-CH 100V 0.19A SOT-23|Q201, Q202, Q803, Q804, Q905, Q906|6|Infineon|BSS123NH6327XTSA1
223 |BSS83PH6327XTSA1|SIPMOS Small-Signal Transistor, -0.33A, -60V, SOT-23|Q801, Q802|2|Infineon|BSS83PH6327XTSA1
224 |IAUCN04S7L028ATMA1|Mosfet, N-ch, 40V, 100A|Q901, Q902|2|Infineon|IAUCN04S7L028ATMA1
225 |BSC084P03NS3GATMA1|P-Channel OptiMOS P3, -30V VDS, -78.6A ID, PG-TDSON-8-1|Q903, Q904|2|Infineon|BSC084P03NS3GATMA1
Mathias Larsen 37.1 226 |(( TBD ))|Generic Resistor, 350Ω, 0603|R104, R204, R304, R404, R504, R606, R704, R804, R904|9|(( TBD ))|
227 |(( TBD ))|Generic Resistor, 1KΩ, 0603|R205, R206, R807, R808, R913, R914|6|(( TBD ))|
228 |(( TBD ))|Generic Resistor, 10KΩ, 0603|R1, R207, R208, R805, R806, R809, R810, R811, R812, R911, R912, R915, R916|13|(( TBD ))|
229 |(( TBD ))|Generic Resistor, 1.6KΩ, 0603|R2|1|(( TBD ))|
230 |(( TBD ))|Generic Resistor, 2.2Ω, 0603|R3|1|(( TBD ))|
231 |(( TBD ))|Generic Resistor, 27KΩ, 0603|R4|1|(( TBD ))|
232 |(( TBD ))|Generic Resistor, 5.1KΩ, 0603|R5|1|(( TBD ))|
Mathias Larsen 21.1 233 |WSLF25122L000FEA|Res Metal Strip 2512, 0.002Ω, 1%, 5W|R101, R201, R301, R401, R501, R601, R701, R801, R901|9|Vishay|WSLF25122L000FEA
234 |CR0603-FX-1002ELF|SMD Resistor, 10kΩ, ±1%, 100mW, 0603|R102, R105, R202, R302, R402, R502, R602, R702, R802, R902|10|Bourns|CR0603-FX-1002ELF
235 |CR0805-JW-472ELF|SMD Resistor, 4.7kΩ, ±5%, 125mW, 0805|R103, R203, R303, R403, R503, R603, R703, R803, R903|9|Bourns|CR0805-JW-472ELF
236 |CR0603-FX-1001ELF|RES SMD 1K Ohm, 1%, 1/10W, 0603|R106|1|Bourns|CR0603-FX-1001ELF
237 |CRCW060347K5FKEA|Res Thick Film 0603, 47.5KΩ, 1%, 1/10W|R905|1|Vishay|CRCW060347K5FKEA
238 |RC0603FR-13100KL|Chip Resistor, 100KΩ, ±1%, 0.1W, 0603|R906|1|Yageo Group|RC0603FR-13100KL
239 |AC0402FR-0712K1L|Res Thick Film 0402, 12.1KΩ, 1%, 1/16W|R907|1|Yageo Group|AC0402FR-0712K1L
240 |CRCW060340K2FKEA|Res Thick Film 0603, 40.2KΩ, 1%, 1/10W|R908|1|Vishay|CRCW060340K2FKEA
241 |CRCW06039K53FKEA|Res Thick Film 0603, 9.53KΩ, 1%, 1/10W|R909|1|Vishay|CRCW06039K53FKEA
242 |WSR33L000FEA|Res Metal Strip 4527, 0.003Ω, 1%, 3W|R910|1|Vishay|WSR33L000FEA
243 |STM32G431CBT6|MCU 32-bit ARM Cortex M4, 128KB Flash, 48-Pin LQFP|U1|1|STMicroelectronics|STM32G431CBT6
244 |NCV7344D13R2G|CAN FD Transceiver, ISO 11898-2, 5Mbps, SOIC-8|U2|1|onsemi|NCV7344D13R2G
245 |INA4180A4IPWR|26V Quad Channel Current Sense Amplifier, 14-TSSOP|U3, U4, U5|3|Texas Instruments|INA4180A4IPWR
246 |AP64060WU-7|DC-DC Synchronous Step Down, 4.5-40V to 0.8-26V, 0.6A, TSOT-26|U6|1|Diodes Inc.|AP64060WU-7
247 |AP2112K-3.3TRG1|Fixed Positive LDO, 3.3V, 0.4V Dropout, PDSO5|U7|1|Diodes Inc.|AP2112K-3.3TRG1
248 |LM5148RGYR|3.5-80V Current Mode Synchronous Buck Controller, 24-VQFN|U801|1|Texas Instruments|LM5148RGYR
249 |ASE-8.000MHz-E-T|Crystal Oscillator, 8MHz, 3.3V, 15pF, 4-Pin SMD|Y1|1|Abracon|ASE-8.000MHZ-E-T
Mathias Larsen 30.2 250
Mathias Larsen 32.8 251 = AR27 Concept =
Mathias Larsen 30.2 252
Mathias Larsen 37.1 253 This section describes the concept for AR27.
Mathias Larsen 30.2 254
Mathias Larsen 31.1 255 == Changes ==
Mathias Larsen 30.2 256
Mathias Larsen 32.12 257 * Circuits
Mathias Larsen 37.1 258 ** More dedicated supply circuits
259 ** Keep the same current rating
260 ** Adjust the signal LED resistor on the PCB
Mathias Larsen 33.1 261 * Digital signals
Mathias Larsen 37.1 262 ** Adjust the signal LED resistor on the PCB
263 * 12 V supply
264 ** Three separate 12 V supplies:
265 *** Pump 1
266 *** Pump 2
267 *** Inverter / other 12 V loads
Mathias Larsen 35.2 268 * Autonomous
Mathias Larsen 32.10 269 ** Supplied by ASMS
Mathias Larsen 32.11 270 ** Potentially control ASSI
Mathias Larsen 33.1 271 ** ASMS state detection
Mathias Larsen 31.2 272
Mathias Larsen 32.2 273 == Supply table ==
Mathias Larsen 31.1 274
Mathias Larsen 32.17 275 === Standard supply table ===
Mathias Larsen 31.4 276
Mathias Larsen 37.1 277 |= |=Voltage|=Shared supply|=Qty
278 |IPC|24V|Standalone|1
279 |Pumps|12V|Standalone|2
280 |Fans|24V|Standalone|
281 |HV box|24V|Standalone|
282 |Energy meter|12V|Inverter, energy meter|
283 |Inverter|12V|Inverter, energy meter|
Mathias Larsen 35.17 284 |Accumulator|24V|Standalone|
Mathias Larsen 37.1 285 |Brake light|24V|Buzzer, brake light|
286 |Buzzer|24V|Buzzer, brake light|
287 |Sensor module (rear)|24V|Sensor modules, telemetry|
288 |Sensor module (front)|24V|Sensor modules, telemetry|
289 |Tire temperature|12V|Telemetry, tire temperature|
290 |Telemetry|12V|Telemetry, tire temperature|
291 |Telemetry|24V|Sensor modules, telemetry|
292 |Dashboard|24V|Standalone|
Mathias Larsen 35.20 293 |SDC|24V|Standalone|
Mathias Larsen 37.1 294 |SDC monitor|24V|Dashboard, telemetry, SDC monitor|
295 |Internal circuitry|24V|Standalone|
Mathias Larsen 31.7 296
Mathias Larsen 32.17 297 === Autonomous supply table ===
298
Mathias Larsen 37.1 299 |= |=Qty|=Current
300 |Steering motor|1|?
301 |ASB/ESB| |?
Mathias Larsen 35.6 302 |ASSI|2|?
303 |RES|1|?
Mathias Larsen 32.18 304
Mathias Larsen 32.5 305 == Relevant rules ==
Mathias Larsen 31.7 306
Mathias Larsen 37.1 307 |=(% style="width: 472px;" %)Rule number|=(% style="width: 650px;" %)Rule
Mathias Larsen 32.6 308 |(% style="width:472px" %) |(% style="width:650px" %)
309 |(% style="width:472px" %) |(% style="width:650px" %)
310 |(% style="width:472px" %) |(% style="width:650px" %)
311 |(% style="width:472px" %) |(% style="width:650px" %)
312 |(% style="width:472px" %) |(% style="width:650px" %)
313 |(% style="width:472px" %) |(% style="width:650px" %)
Mathias Larsen 37.1 314 |(% style="width:472px" %) |(% style="width:650px" %)