Lane Keeping Assist

We have just replaced our 15 year old VW Touran diesel with a T-Cross 1.0 TSi. This is, as all new cars, fitted with lane keeping assist. I was wondering what would happen if it got confused? Could I, or my wife, fight it and win. Looking at the Bosch variant it either uses the electric power steering, if fitted, or brakes individual wheels using the ESP.

https://www.bosch-mobility.com/en/solutions/assistance-systems/lane-keeping-assist/

“Lane keeping assist uses a video camera to detect the lane markings ahead of the vehicle and to monitor the vehicle's position in its lane. If the vehicle’s distance to the lane markings falls below a defined minimum, the system steps in. In vehicles with electric power steering, it gently, but noticeably countersteers in order to keep the vehicle in the lane. In vehicles without electric power steering, it achieves the same effect by utilizing the electronic stability program (ESP®) to brake individual wheels.

Drivers can override the function at all times, so they retain control of the vehicle. If they activate the turn signal in order to intentionally change lanes or turn, the system does not intervene.”

I am fairly happy with these various assist systems so long as the appropriate risk assessment and performance level calculations have been carried out, so not designed like the Boing anti stall system.

 

Some while ago I started a thread on EVs apparently becoming immobilised due to battery or other failures.

https://engx.theiet.org/f/discussions/28694/evs-immobilised-by-flat-batteries-or-breakdowns

The new car has a DSG transmission and the selector lever is locked in Park when the ignition is switched off. It requires 12V to be available to release it, so flat battery and the car is immobilized. Reading deeply in the handbook it can be released with a screwdriver (supplied with the car but buried under the spare wheel) by opening a flap in front of the (conventional) hand brake lever. Who, other than an Aspergers spectrum engineer, would actually look that up?

Parents
  • As an old fogy who's first car had no automation apart from the points and coil providing a spark. Since then I have owned and maintained, mainly my three daughter's, cars with increasing levels of electronics and complexity.  In every case there have been problems caused by damp, connection problems and hardware errors in the clever electronic bits. Given the hostile environment of a car, especially as it gets older, I do not see any attempt being made to ruggedise components by design or manufacture. Many car designs appear to be made to fail with all the connections and computers located where they will get wet when the sunroof drains block or a seal gets damaged or mislaid during maintenance with no attempt being made to damp proof the components. I worked on one car where there had been recalls to stick bits of polythene sheets to stop condensation entering  multiple computers

    The result is that I am concerned  that all these "aids" stand a chance of failing to danger when the car is older irrespective of maintenance. Even if they fail will the driver be expecting them to work and have an incident as a result. I read the odd aircraft accident report and if aircraft systems can fail with all the redundancy,  regulations, testing and strict maintenance schedules and procedures what chance does a car built the lowest price stand when it is few years old.

    My sister in law recently got rid of her new car as she could not work out how to work all the aids that made her feel she had no control over the car and kept sounding warning sounds that she did not know what they were for  and distracted her from driving. 

    I read that people are now questioning the safety of the touch screens for basic controls when compared to simple switches or rotary controls. I must admit I have to look away from the road to alter my heating in my car which I never had to do with the old rotary controls with set positions. 

    I feel that progress is often being made for the sake of progress rather than safety.

  • The problem of course is once you have mis-learnt you need only look for things with lights - unlit cycles or pedestrians or animals are then at a huge disadvantage.
    Equally if one drives in India and some other parts of the world where totally unlit cars and lorries even at dusk or night time are common, it rapidly becomes  truly scary for a western European driver brought  up with 'see and be seen' as the mantra.
    Would running lights make this road safer to navigate ?


    Photo taken from here an article that suggests that the Indian roads are no safer than when I was last there for work a good few years ago.

    Mike

  • DRLs are a good idea, as Simon says motorcycles have had to have their headlights on permanently for years. But my issue is that it's just the front lights and many drivers rely on just having those on in situations where they really should be fully illuminated i.e. in the fog, at dusk/night time or during a heavy rainstorm. 

    If the rear lights were also illuminated in some way or if the dashboard lights were not illuminated unless your full lights were on (if you can't see your dashboard then it's dark enough to have your full lights on anyway) then that would be excellent! Slight smile

  • I've only recently got rid of my old 14 year-old Fiat.  That was too old to have DRLs.  But it did have the very sensible feature that if you turned the ignition off with the lights on, it would turn the lights off for you.  Then next time you turned on the ignition, it would turn the lights back on.

    So for many years, I left the side lights (and hence the tail lights) on all the time.

  • These various new systems seem to cause wide spread problems/confussion:

    Two in five drivers switch off vital vehicle safety features (fleetnews.co.uk)

    I've had to turn off the parking sensors when they are covered in snow and bleeping at low speeds. 

  • Good point!  i wonder how that risk assessment proceeded.  Volvo have had all DRL for ages but when mandated it only applied o the front lights.  Odd.

  • Having watched several vehicle reviews on YouTube recently, it sounds like some of these safety features can be very badly implemented on some cars.  Whether it's the lane keep assist that beeps frantically and then tries to pull the steering out of your hands, or the emergency braking system that operates without warning when it's not needed.

    If that's the case, then I'm not surprised if people turn them off.

    So far, the lane assist on my new car only seems to create a gentle rumble - less than I get if I hit the rumble strip on a motorway.  If that's all it's going to do, then I'm happy to leave it on.

  • Simon i think you are right here and it's typical MSM repeating press releases without engaging their brain.  How about disabling a passenger airbag because there is a child seat in the front - yep that would count as disabling a safety feature. Switching off auto-wipe probably does too even though you only do so because it is totally incapable of working properly (unless on a VW see above). 

    I quite like the gentle rumble effect, so that is a good driver aid.  But in a free world I surely retain the right to turn it off without the nanny state tut-tut-ing.  Rather like the MoT test that has mission creep and everything now is safety.  My old car failed because the fog light tell tale light had stopped working.  The fog lights were fine but this "safety feature" meant it failed - it didn't need a light but because  it had one that didn't work it was a "fail".  Give me strength.

  • Last year my car failed the MOT as the screen wash jets were not working..... Given that it was minus 10 that day and the screen wash tank was frozen solid (as well as many other drivers screen wash tanks had too) then I'm not surprised Joy 

    Gave it some time to thaw out again then lo and behold it passed.... Wink

  • My old car failed because the fog light tell tale light had stopped working.  The fog lights were fine but this "safety feature" meant it failed - it didn't need a light but because  it had one that didn't work it was a "fail". 

    Sounds right to me.  So far as I know, it's always been a requirement since fog lights became a requirement.  I'm sure all of us have found ourselves stuck behind a car with its fog lights on, despite there being no fog for days.

    Now imagine how often it would happen if cars didn't have a warning light on the dashboard.

  • I've just seen an electric push bike on my walk into town at lunchtime. As it went into the underpass beneath the roundabout not far from Futures Place, its lights came on automatically (both front AND rear) and then back off again once the rider had exited the underpass and back into what passes for daylight at this time of the year. Joy

    Now if only cars could do that too.... Wink

Reply
  • I've just seen an electric push bike on my walk into town at lunchtime. As it went into the underpass beneath the roundabout not far from Futures Place, its lights came on automatically (both front AND rear) and then back off again once the rider had exited the underpass and back into what passes for daylight at this time of the year. Joy

    Now if only cars could do that too.... Wink

Children
  • My Peugeot 508 does that when set to auto lights.  DRL then full lights when the sensors think it is needed.  There is one slight flaw in the system.  When it snows it thinks that full lights front and back are not needed so I then switch to manual overide.  Also in foggy conditions I sometimes need to manual overide it. 

  • My Peugeot 508 does that when set to auto lights.  DRL then full lights when the sensors think it is needed

    Is that both front and rear lights though Sergio? Many cars I see on my daily commute will have only the front DRLs on with nothing on the back. It's a bit scary when you come up behind someone in thick fog with no lights on the back but their fancy LED strip lights on the front are on so they think that's sufficient! 

    I've recently had a dash cam fitted to one of my vehicles as I'm fed up of drivers cutting tight in front of it to turn off at a junction rather than pulling in behind to wait a few seconds. My truck is 2 tonne and doesn't stop on a penny like my usual mode of transport can! I have a lot of renewed sympathy for truck drivers... In a recent commute to work in heavy rain I'd say there were around 2 in 10 cars on the road that were not sporting rear lights on their cars. Overtaking them and you could see their DRLs were on but no lights at the back where it's really needed especially on motorways and small country lanes! 

  • Is that both front and rear lights though

    On my other half's car it is - front DRLs when it thinks it's daylight, sidelights/dipped headlights front and rear when it thinks it's dark.

       - Andy.

  • On my car front DRLs when it thinks it's daylight.  No rear lights at all

    sidelights/dipped headlights front and rear when it thinks it's dark or you enter a tunnel

    When there is fog front and rear lights have to be turn on by the driver. 

    I have always thought it was a poor design decision not to make the vehicle visiable from the rear with lights if they deem it is needed to have the front of the vehicle visiable by DLRs

  • I have always thought it was a poor design decision not to make the vehicle visiable from the rear with lights if they deem it is needed to have the front of the vehicle visiable by DLRs

    Yes I fully agree  

    Again this morning, driving into work in rain and drizzle and many cars do not have rear lights on but their DRLs are on at the front.  I'm astounded that Automotive designers haven't addressed this by now! Disappointed

  • I saw this a few days ago and meant to post a link - looks like something might be happening about the light glare:

  • It is not just the glare that is the issue.  A lot of car coming out of the factory or the main dealer showroom have the lights set at the wrong height and the wrong beam angle.  The motor trade are well aware of it, they choose to ignore it. 

  • That should be picked up at an MOT though surely Sergio? I know they test it on mine as they've picked up on it after I'd had a new headlight installed. 

    The problem I have is that my car is rather 'low' to the ground and everyone else seems to have SUV's that sit a lot higher than me. Meaning that their headlights are right in my eyeline anyway... Slight frown

    It seems to be the social norm nowadays to look after oneself with no regard to how your actions affect those around you i.e. "I'll have the brightest lights on my car so I can see and I don't care if it dazzles everyone else on the road." 

    I read a comment on a YouTube video the other day (my guilty pleasure is watching dashcam videos of bad driving, most of the time by those with the dashcam themselves!!! ) where someone said 'Drive like it's a collaboration, not a competition' which I thought was a really nice mantra Slight smile

  • Loading of the vehicle also has an effect. Mine have had adjusters to lower the lights when there is a heavy load at the rear. How many people use this function?

  • SUVs or CrossOvers have become common place and they have the lights positioned higher on the frame of the vehicle.  4 x 4s can also suffer from this issue.  Some also have self adjusting headlight beam angle.  The cause and effect is the same.  They are blinding the oncoming traffic be it vehicle or cyclist. 

    The drivers of these vehicles are sometime aware as people will tell them the lights are blinding, some will have oncoming traffic flash them to make them aware.  I agree that there is a culture of people that look out for themselves and don't care about the impact they have on others. 

    As a side note the road surface (lumpy and bumpy) and the amount of potholes makes the glare and blinding isssue worse.