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Lane Keeping Assist

Roger B

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

  • The joys of the modern world!

    Recently I had to go with my fifty year old jump leads in my eleven year old diesel van and jump start a hybrid petrol/electric car that always starts in electric mode, but would not start because the 12 volt battery was discharged. So we put the jump leads on and waited a few minutes, then it started and I followed it to the garage in my van with the jump leads, just in case it "stalled".

    I have also bought myself a new petrol car with various gizmos, including automatic slow speed braking, not something  I can actually be confident enough to try out by driving at something on purpose.

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  • The joys of the modern world!

    Recently I had to go with my fifty year old jump leads in my eleven year old diesel van and jump start a hybrid petrol/electric car that always starts in electric mode, but would not start because the 12 volt battery was discharged. So we put the jump leads on and waited a few minutes, then it started and I followed it to the garage in my van with the jump leads, just in case it "stalled".

    I have also bought myself a new petrol car with various gizmos, including automatic slow speed braking, not something  I can actually be confident enough to try out by driving at something on purpose.

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