V60 weak steering wheel vibration warning

[rct1234]

Originally Posted by MikeGMT

The Owners manual clearly states :-



On the few occasions I have used Steering Assist via Pilot Assist I don't recall the wheel ever shaking, it does give warning in the driver display.

Directly above the line you've just quoted in the manual it says:

"The steering wheel vibrates slightly when deactivated in order to alert the driver of the change".

I think you're confused, it DOES vibrate, but it doesn't give you a prominent warning in the driver display in this scenario. The only thing that changes in the driver display is the little steering wheel icon turns grey, which of course you're not likely to notice when you're watching the road ahead.

[ergonomist]

In my view not having an audible warning for PA2 disconnect is a very poor implementation of a driver aid, from an ergonomics perspective. And Volvo have implicitly acknowledged this by introducing vibration warning – my recollection is that the initial version of PA2 didn’t even have that. If you have any degree of semi-autonomous driving as an aid, then the driver will start to rely on it – even if only to allow a little more attention to be given to other tasks such as route-finding, etc. It’s not acceptable to say ‘the driver should always be in control’ (it’s really no more helpful than your mother telling you when you were little to ‘be careful’ ) – there will be an inevitable loss of situation awareness. A lot of recent research into autonomous systems (level 3 and beyond) has repeatedly shown that providing warning that the system is disconnecting helps significantly.

A slight vibration and a green symbol going grey are hardly compelling attention-getters – particularly when lack of attention is the issue! It would be trivial to implement an audible warning. After all, they have such a warning if it detects your hand is not on the wheel… Hence to have the functionality available, to recognise its importance in some situations, and then to insist on not providing it in other contexts is, to my mind, perverse.

[Clan]

Originally Posted by ergonomist

In my view not having an audible warning for PA2 disconnect is a very poor implementation of a driver aid, from an ergonomics perspective. And Volvo have implicitly acknowledged this by introducing vibration warning – my recollection is that the initial version of PA2 didn’t even have that. If you have any degree of semi-autonomous driving as an aid, then the driver will start to rely on it – even if only to allow a little more attention to be given to other tasks such as route-finding, etc. It’s not acceptable to say ‘the driver should always be in control’ (it’s really no more helpful than your mother telling you when you were little to ‘be careful’ ) – there will be an inevitable loss of situation awareness. A lot of recent research into autonomous systems (level 3 and beyond) has repeatedly shown that providing warning that the system is disconnecting helps significantly.

A slight vibration and a green symbol going grey are hardly compelling attention-getters – particularly when lack of attention is the issue! It would be trivial to implement an audible warning. After all, they have such a warning if it detects your hand is not on the wheel… Hence to have the functionality available, to recognise its importance in some situations, and then to insist on not providing it in other contexts is, to my mind, perverse.

Unfortunatly its the law and this is the phrase which will condemn you in an accident case .

[ergonomist]

Originally Posted by Clan

Unfortunatly its the law and this is the phrase which will condemn you in an accident case .

Indeed it is - but that shouldn't stop a manufacturer from making it as easy as possible for you to stay in control. A good system is one that takes account of human capability and, more importantly, is resilient against predictable human error.

Power tools (such as the one being used by my neighbour as I type... grrr...) all come with guards and interlocks to avoid accidental operation and injury. It's still the user's responsibility to operate the tool safely, but the manufacturers recognise their duty to make it as easy as possible to use it safely.

[rct1234]

Originally Posted by ergonomist

A slight vibration and a green symbol going grey are hardly compelling attention-getters – particularly when lack of attention is the issue! It would be trivial to implement an audible warning. After all, they have such a warning if it detects your hand is not on the wheel… Hence to have the functionality available, to recognise its importance in some situations, and then to insist on not providing it in other contexts is, to my mind, perverse.

I very much agree with this. Give us the option to turn the audible warning off by all means, but I for one would definitely want it turned on. To make a car as safe as possible it needs to be as fool proof as possible.

[ergonomist]

Originally Posted by rct1234

To make a car as safe as possible it needs to be as fool proof as possible.

Err... what are you saying about the two of us...?

[ergonomist]

But you're right - good design is about reducing the opportunity for human error

[rct1234]

Originally Posted by ergonomist

Err... what are you saying about the two of us...?

Lol, its my missus I'm most worried about. She has definitely not read the manual

[Clan]

Originally Posted by ergonomist

Indeed it is - but that shouldn't stop a manufacturer from making it as easy as possible for you to stay in control. A good system is one that takes account of human capability and, more importantly, is resilient against predictable human error.

Power tools (such as the one being used by my neighbour as I type... grrr...) all come with guards and interlocks to avoid accidental operation and injury. It's still the user's responsibility to operate the tool safely, but the manufacturers recognise their duty to make it as easy as possible to use it safely.

Volvo systems are under constant evolment as they have been for many years so you you should keep on top of it with your yearly systems software update .