On the Australian Nissan LEAF, what is the difference between the following two similar safety functions?
(a) LANE DEPARTURE WARNING (LDW) SYSTEM
(b) INTELLIGENT LANE INTERVENTION (ILI) SYSTEM
On the Australian Nissan LEAF, the difference between LANE DEPARTURE WARNING (LDW) and INTELLIGENT LANE INTERVENTION (ILI) comes down to whether the system just warns you or actively intervenes:
(a) Lane Departure Warning (LDW)
Function:
LDW alerts the driver when the vehicle unintentionally drifts out of its lane without using a turn signal.
How it works:
- Uses a front-facing camera to detect lane markings.
- If the system detects that the car is drifting from the lane, it gives an audible and/or visual warning (e.g., beeping or a warning icon on the dash).
- It does not take control of the steering or brakes.
Driver responsibility:
The driver must take corrective action themselves.
(b) Intelligent Lane Intervention (ILI)
Function:
ILI actively assists in steering the vehicle back into the lane if the driver doesn’t respond to a lane departure warning.
How it works:
- Builds on LDW.
- Uses the same camera to monitor lane markings.
- If the car begins to drift out of its lane and the driver doesn’t respond, the system will:
- Apply gentle braking on specific wheels to steer the car back,
- Or gently adjust steering (depending on model and year).
- Helps keep the car centered within the lane.
Driver responsibility:
Still remains with the driver, but this system provides hands-on corrective support.
Summary Table
| Feature | LDW | ILI |
|---|---|---|
| Warns driver? | ✅ Yes | ✅ Yes |
| Actively corrects vehicle? | ❌ No | ✅ Yes |
| Uses camera for lane lines | ✅ Yes | ✅ Yes |
| Intervention type | — | Gentle braking / steering assist |
| Driver control | Full control | Still in control, but assisted |
LDW beeps at you if you drift.
ILI beeps at you and helps steer you back into your lane if you ignore it.