Wolley Motor ECU
This is the KiCad project for the PCB that is used as ECU for the Wolley Wheel and Fan modules.
It's a circular PCB that a brushed DC motor can be directly mounted on to be controlled by the driver and MCU onboard through CAN.
Specifications
| Name | Value |
|---|---|
| PCB layers | 2 |
| PCB diameter | 61 mm |
| Max motor diameter | 28 mm |
| Motor center hole diameter | 10 mm |
| Motor voltage | 6 - 36 V |
| Max motor current | 6 A |
| Control Interface | CAN |
Key Components
| Component | Part | Details |
|---|---|---|
| MCU | Infineon XMC1404_F064X200A | ARM Cortex-M0, 32-bit, 48 MHz, 200 kB flash |
| Motor driver | Infineon IFX9201SG | 6 A and 36 V H-bridge with SPI diagnostics |
| CAN transceiver | Infineon TLE7251VSJ | |
| Speed sensor | Infineon TLE4964-4M | High precision unipolar hall effect switch |
| Temperature sensor | TI LM35DM | Precision centigrade temperature sensor |
Motor Alternatives
- Mabuchi RS-385PV-2465
- Mabuchi RS-365
Release Notes
Version 1.4:
- Replaced the 4-pin connector with the new 5-pin connector.
- Removed the battery power connector.
Version 1.3:
- Moved the connectors closer to the middle to allow for more space and therefore better mounting.
- Added a key hole to prevent the PCB from spinning when used as the CentrifugalFan ECU.
- Joined the mount holes with the motor hole.
- Smaller silk screen improvements.
Version 1.2 (same as CentrifugalFanECU v1.0):
- Added a dedicated connector for the motor power.
- Added a temperature sensor.
- Added a status LED.
- Removed two of the mount holes.
- Made the motor hole bigger to fit a Mabuchi RS-380.
Version 1.1:
- Replaced the motor driver with a better one that can handle up to 36 V.
- Other improvements.
Licence
Licenced under the CERN Open Hardware Licence v1.2.