PSM Question
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Joined: Apr 2005
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From: Yorkshire, England
PSM Question
I'm sure I read somewhere recently that if you have the PSM switched off and you brake, it automatically turns it back on again. Well if that's correct
a. it dosent do it in my car
b. surely a lot of people would not like that anyway.
Have I read wrong?
Comments please.
a. it dosent do it in my car
b. surely a lot of people would not like that anyway.
Have I read wrong?
Comments please.
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Joined: Apr 2002
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From: Los Angeles, CA
More agile setup/modified intervention thresholds:
PSM in the new 911Carrera offers more individual freedom than before thanks to the further development of its function logic. PSM deliberately waits until the last moment to intervene, particularly at low speeds of up to around 43.75 mph (70 km/h), enabling more agile driving behavior in tight corners.
Even when switched off the driver is afforded more freedom than was previously the case. A new feature is that when PSM is deactivated, control interventions by the system will only be executed when heavy pressure is applied to the brake pedal. To do this, ABS control must be active at one front wheel at least. This affords the sporty driver more scope since gentle pressure on the brake pedal will not result in PSM intervention; the driver can therefore brake into corners without the system intervening.
Drivers tend to apply more pressure to the brake in emergency situations which means that PSM can provide assistance when it is needed.
Limits of PSM:
While PSM is designed to maintain driving stability and offer a significant improvement in driving safety, it is by no means capable of changing the laws of physics: in other words, the driver alone is solely responsible for all manoeuvres, even when using PSM.
PSM in the new 911Carrera offers more individual freedom than before thanks to the further development of its function logic. PSM deliberately waits until the last moment to intervene, particularly at low speeds of up to around 43.75 mph (70 km/h), enabling more agile driving behavior in tight corners.
Even when switched off the driver is afforded more freedom than was previously the case. A new feature is that when PSM is deactivated, control interventions by the system will only be executed when heavy pressure is applied to the brake pedal. To do this, ABS control must be active at one front wheel at least. This affords the sporty driver more scope since gentle pressure on the brake pedal will not result in PSM intervention; the driver can therefore brake into corners without the system intervening.
Drivers tend to apply more pressure to the brake in emergency situations which means that PSM can provide assistance when it is needed.
Limits of PSM:
While PSM is designed to maintain driving stability and offer a significant improvement in driving safety, it is by no means capable of changing the laws of physics: in other words, the driver alone is solely responsible for all manoeuvres, even when using PSM.