Difference between MSR & ABS

jerish666 · 29th December 2007, 18:23

MSR is a function that is shared between the brake system and the engine management systems. Is task is to prevent the driving wheels from locking up during engine braking. This could occur when the foot is quickly removed from the accelerator or when suddenly changing down gears. MSR prevents loss of steering control, due to slippage of the driving wheels, by increasing engine rpm, thus ensuring that the driving wheels do not spin and steering control is maintained. This sort of slipping is quite frequent when descending roads that are icy or snow-covered. Source:carpages.co.uk.

Anybody knows the difference between MSR and ABS?

kpzen · 29th December 2007, 19:12

Full form of MSR...??

jerish666 · 29th December 2007, 19:17

Quote:

Originally Posted by kpzen

Full form of MSR...??

Motor speed regulator.I want to know more about MSR.

kpzen · 29th December 2007, 20:12

Sorry Jerish. No idea about it. Let the gurus explain this.

Did some googling but all in vain.

CrAzY dRiVeR · 29th December 2007, 20:28

Quote:

Originally Posted by jerish666

Motor speed regulator.I want to know more about MSR.

Isn't this the Fabia thingy?

Shan2nu · 29th December 2007, 20:39

Sounds like some sort of onboard system that revv matches when you down shift, in order to prevent sudden change in wheel rpm due to engine braking.

Shan2nu

jerish666 · 29th December 2007, 20:45

They are using MSR for Alpha Romeo, Fiat Bravia ,skoda Fabia.

ram_hyundai · 29th December 2007, 20:59

no snows so not bothered about it.any way hearing this for the first time.may be a talk in the snowing region.does anything like speed governors to do with msr.

ram

hyper123 · 29th December 2007, 21:58

Quote:

Originally Posted by Shan2nu

Sounds like some sort of onboard system that revv matches when you down shift, in order to prevent sudden change in wheel rpm due to engine braking.

Shan2nu

If it revv matches when you downshift, won't that negate the engine braking??

Shan2nu · 29th December 2007, 23:01

Quote:

If it revv matches when you downshift, won't that negate the engine braking??

When you revv match, it makes for a smoother downshift (minimum clutch friction) and a more even rate of deceleration.

MSR sounds like the kind of technology that might be found on automatic/paddle-shift cars. So while an ABS system acts after there is a wheel lockup, MSR prob sees to it that the vehicle never reaches a rate of deceleration which might cause the wheels to lockup, due to engine braking.

Shan2nu

jerish666 · 30th December 2007, 14:51

I think nobody knows what is MSD?

Shan2nu · 30th December 2007, 14:58

Quote:

I think nobody knows what is MSD?

MSD or MSR?

ABS only works when wheel lock-up is caused due to regular braking. MSR on the other hand sees to it that the wheels don't lock-up under engine braking.

Shan2nu

jerish666 · 30th December 2007, 15:46

sorry it is MSR.Thank you Shan.

hyper123 · 30th December 2007, 17:16

OK, now I understand. Thanks.

Alfa_Kilo · 1st January 2008, 11:30

MSR increases the throttle only when the system detects imminent wheel slip due to excessive engine braking. It shares the wheel speed and acceleration sensors with ABS. It does not reduce engine braking except in conditions where wheel lock/slip is beneficial like in soft snow and deep gravel. It is the nanny to engine braking as ABS is to wheel braking.

I personally prefer unassisted brakes (no servo, no ABS) on light 4x4s.

29th December 2007, 18:23	#1
jerish666 BHPian Join Date: Oct 2006 Location: Trivandrum,Kochi,Trissur Posts: 757 Thanked: 2 Times	Difference between MSR & ABS MSR is a function that is shared between the brake system and the engine management systems. Is task is to prevent the driving wheels from locking up during engine braking. This could occur when the foot is quickly removed from the accelerator or when suddenly changing down gears. MSR prevents loss of steering control, due to slippage of the driving wheels, by increasing engine rpm, thus ensuring that the driving wheels do not spin and steering control is maintained. This sort of slipping is quite frequent when descending roads that are icy or snow-covered. Source:carpages.co.uk. Anybody knows the difference between MSR and ABS? Last edited by jerish666 : 29th December 2007 at 18:37.
	() Thanks

29th December 2007, 19:12	#2
kpzen Senior - BHPian Join Date: Oct 2004 Location: Faridabad Posts: 5,610 Thanked: 1,876 Times View My Garage	Full form of MSR...??
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29th December 2007, 20:12	#4
kpzen Senior - BHPian Join Date: Oct 2004 Location: Faridabad Posts: 5,610 Thanked: 1,876 Times View My Garage	Sorry Jerish. No idea about it. Let the gurus explain this. Did some googling but all in vain.
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29th December 2007, 20:39	#6
Shan2nu Senior - BHPian Join Date: Feb 2004 Location: Hubli - Karnata Posts: 5,533 Thanked: 125 Times View My Garage	Sounds like some sort of onboard system that revv matches when you down shift, in order to prevent sudden change in wheel rpm due to engine braking. Shan2nu
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29th December 2007, 20:45	#7
jerish666 BHPian Join Date: Oct 2006 Location: Trivandrum,Kochi,Trissur Posts: 757 Thanked: 2 Times	They are using MSR for Alpha Romeo, Fiat Bravia ,skoda Fabia.
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29th December 2007, 20:59	#8
ram_hyundai Senior - BHPian Join Date: Jun 2006 Location: Calicut ,trisur Posts: 2,020 Thanked: 53 Times View My Garage	no snows so not bothered about it.any way hearing this for the first time.may be a talk in the snowing region.does anything like speed governors to do with msr. ram
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30th December 2007, 14:51	#11
jerish666 BHPian Join Date: Oct 2006 Location: Trivandrum,Kochi,Trissur Posts: 757 Thanked: 2 Times	I think nobody knows what is MSD?
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30th December 2007, 15:46	#13
jerish666 BHPian Join Date: Oct 2006 Location: Trivandrum,Kochi,Trissur Posts: 757 Thanked: 2 Times	sorry it is MSR.Thank you Shan.
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30th December 2007, 17:16	#14
hyper123 BHPian Join Date: Jan 2005 Location: Bangalore Posts: 321 Thanked: 2 Times View My Garage	OK, now I understand. Thanks.
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1st January 2008, 11:30	#15
Alfa_Kilo BHPian Join Date: Apr 2007 Location: Jaipur Posts: 328 Thanked: 13 Times	MSR increases the throttle only when the system detects imminent wheel slip due to excessive engine braking. It shares the wheel speed and acceleration sensors with ABS. It does not reduce engine braking except in conditions where wheel lock/slip is beneficial like in soft snow and deep gravel. It is the nanny to engine braking as ABS is to wheel braking. I personally prefer unassisted brakes (no servo, no ABS) on light 4x4s.
	() Thanks