Understanding Vehicle Control Systems
- ECU/Engine Control Unit: Manages the engine and transmission.
- TCM/Transmission Control Module: Handles gear shifting and transmission functions.
- Examples: Speeduino, MegaSquirt (open-source or partially open systems).
- ABS (Anti-lock Braking System):
- Prevents wheel lockup during braking.
- Requires wheel speed sensors, hydraulic control, and complex algorithms.
- Traction Control:
- Limits wheel spin during acceleration by reducing power or applying brakes.
- Often integrated with ABS or ECU.
- Roll Stability Control (RSC):
- Monitors vehicle yaw and roll to prevent tipping during sharp turns.
- BCM (Body Control Module):
- Centralized module for non-powertrain functions.
- Manages power windows, locks, lights, wipers, remote start, and climate control.
- Communicates with other modules via the CAN bus or similar protocols.