Traffic Jam Assist vs Adaptive Cruise Control

[edwardrobert]

Hi, can someone detail the differences between Traffic Jam Assist and Adaptive Cruise Control on the ZS EV please? For me they look like the same thing. Thank you

 

[peterseddon]

Not having digested the car manual I though that the MG Pilot was rubbish at first, but when I engaged traffic jam assist by double pulling the stalk the car now cantered in the lane and followed the car in front. TJA should bring the car to a stop in slow traffic but when using ACC only it also did this so I don't see the difference either. I use the full MG Pilot on motorways and ACC on other roads when suitable.

 

[biffo]

Hi, can someone detail the differences between Traffic Jam Assist and Adaptive Cruise Control on the ZS EV please? For me they look like the same thing. Thank you

They sort of are - but traffic jam assist will do low speed following of the car in front, obviously when in traffic. ACC is the same technology but for more general driving. It’s possible they use different criteria and/or software setting but same ACC radar. At least that’s my experience of them.

 

[Gomev]

Not having digested the car manual I though that the MG Pilot was rubbish at first, but when I engaged traffic jam assist by double pulling the stalk the car now cantered in the lane and followed the car in front. TJA should bring the car to a stop in slow traffic but when using ACC only it also did this so I don't see the difference either. I use the full MG Pilot on motorways and ACC on other roads when suitable.

Double pulling the stalk engages MG Pilot, which includes TJA. Without the double pull you are just using ACC.

 

[Rodc14]

I have used these two functions and found that using only ACC, the car does not have lane steering and only warns/corrects if you drift towards a lane marking when lane assist is switched on, where as TJA steers the car within a lane if it can detect the lane, indicated by the green lines in the centre portion of the instrument panel. BTW, this is on a TCLR model.

 

[peterseddon]

Double pulling the stalk engages MG Pilot, which includes TJA. Without the double pull you are just using ACC.

But just using ACC the car also follows the car in front in slow traffic too. If the car in front stops so does your car, when the car in front goes so do you.

 

[Gomev]

But just using ACC the car also follows the car in front in slow traffic too. If the car in front stops so does your car, when the car in front goes so do you.

In ACC it matches the speed of the car in front, it does not follow it as in going round bends, changing lanes etc. In TJA it literally (correct use of the word for a change) follows the car in front

 

[Robf]

Like others I have turned off the lane keep assist. I am sure that I shall get used to ACC and traffic jam assist (with Pilot), but at the moment (I have had the car for a few weeks) using them can only be described as giving me the collywobbles. Rather than finding myself relaxing, I have my foot hovering over the brake and both hands on the wheel expecting something to go horribly wrong. Using TJA is.... just weird, having the car drive itself is such a strange feeling. At the moment I am more stressed using them