A question about Lane Keep Assist

[PriusRos]

I have a Package IV so am unable to have what seem to be really neat features like dynamic radar cruise control and lane keep assist. But I was talking about this just now and it suddenly occurred to me... how does lane keep assist know the difference between you inadvertently drifting off course and purposely trying to change lanes?

As I said, since I don't have this feature, I'm asking purely out of curiosity.

[robinson]

if you use the blinker, it turns off for a few seconds. If you don't.... you have to fight a little to change lanes. Also, beeps like mad when you do that.

[PriusRos]

Originally Posted by robinson

if you use the blinker, it turns off for a few seconds. If you don't.... you have to fight a little to change lanes. Also, beeps like mad when you do that.

Ah-ha! So, it's linked to the turn signals! Thanks for the info.

[Paradox]

Yeah, a quick flash deactivates it for a few seconds. Like mentioned, you can also make a lane change w/o using the signals but it will try to bump you back on course in the process and beep at ya'...

[PriusRos]

Originally Posted by Paradox

Yeah, a quick flash deactivates it for a few seconds. Like mentioned, you can also make a lane change w/o using the signals but it will try to bump you back on course in the process and beep at ya'...

I'd imagine that could get pretty annoying and you'd learn to use the signals every time!

[Blind Guy]

robinson is 100% CORRECT, using the Turn Signal tells the LKA NOT to implament an alert when you drift across a lane stripe, and also NOT to invoke the tactle steering feedback under that same condition.

FYI, it is LKA when used in conjunction with the DRCC, and when used by itself, it's called LDW (Lane Departure Warning), and best I can tell, there's really NO difference between the two.

As has been mentioned on some other Threads, the LKA takes some adjusting to, it requires a relatively light touch, or you tend to feel like you're fighting it. Once you've gotten used to it, it performs REALLY well.

David (aka Blind Guy)

[PriusRos]

Does the LKA just beep at you, or does it actually try to steer you back into your lane?

[Bobsprius]

Originally Posted by PriusRos

Does the LKA just beep at you, or does it actually try to steer you back into your lane?

Hi PriusRos!

Well it will actually help to steer the wheel in the correct direction. It's a really great feature especially on a long trip when you get fatigued. But I find it useful more and more, especially when leaving work late at night.

In one of the Prius reviews recently it actually showed the driver not touching the steering wheel. I would not perform that, but it is still a great feature.

Bob

[Blind Guy]

Originally Posted by PriusRos

Does the LKA just beep at you, or does it actually try to steer you back into your lane?

* YES, as Paradox said, it attempts to gently nudge you back into your lane.

David (aka Blind Guy)

[Blind Guy]

Originally Posted by Bobsprius

Hi PriusRos!

Well it will actually help to steer the wheel in the correct direction. It's a really great feature especially on a long trip when you get fatigued. But I find it useful more and more, especially when leaving work late at night.

In one of the Prius reviews recently it actually showed the driver not touching the steering wheel. I would not perform that, but it is still a great feature.
* This is TRUE, LKA WILL actually steer itself for up to 15 seconds, at which poinnt, it cancels itself after the 15 seconds!
Bob

David (aka Blind Guy)