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Home > General > driving style question - using the electronic hand brake |
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dazsear Member Since: 23 Nov 2008 Location: Lincolnshire Posts: 851 |
My understanding is the electronic brake is designed for exactly that, pull up to the lights...apply foot brake...apply electronic park brake and leave in drive. Simply apply a little gas when you are ready to move off and hey presto.....bloody good idea in my book and I use it all the time.
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Sun Feb 01 2009 5:49pm |
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C10KO Member Since: 04 Jan 2009 Location: . . . searching . . . Posts: 1136 |
I might be wrong but am not sure that it is quite good idea to apply EHB when in dirve as you said Daz.
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Sun Feb 01 2009 7:11pm |
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RAD Member Since: 23 Sep 2005 Location: In the chippy! Posts: 309 |
For a bit of fun.......try pulling it up at 30mph, works a treat, but make sure you've got your seat belt on.
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Sun Feb 01 2009 8:33pm |
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Tim in Scotland Member Since: 30 May 2005 Location: Driving along in my automobile Posts: 17476 |
Also make sure there are no other cars following you because it works amazingly well at hauling such a heavy car to a stop! 2020 Pangea Green 1st Edition D240 New Defender 110 is here and loving it
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Sun Feb 01 2009 8:41pm |
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mlines Member Since: 10 Dec 2006 Location: UK Posts: 480 |
Thats because when you are moving at speed it applies ALL the brakes of the car as an emergency brake so it uses the full braking capability of the car. And yes, it is a dramatic demonstration that you do on the LR experience day. Martin 2016 RRS 4.4 TDV8 Autobiography Dynamic in Montalcino Red and Stealth Kit |
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Sun Feb 01 2009 8:57pm |
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PJPR01 Member Since: 12 Mar 2006 Location: Houston, Texas Posts: 355 |
Really? Where did you hear that, can't seem to find anything in the manual on this. From what I see, the EPB applies brakes which are inside the rear drums only, they don't apply the rear disc brakes, so how would it electronically apply the front disc brakes? Thanks. PJPR Cairns Blue HSE 180k Miles of Adventure |
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Mon Feb 02 2009 12:42am |
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Bobby Member Since: 07 Jun 2005 Location: Kuala Lumpur Posts: 3781 |
Just be aware that if you have your foot on the brake pedal whilst in neutral you are also energising the solenoid in the gear lever (knob) - which might not be a good idea if its for a long period. If you use the EPB whilst in neutral, that's fine. Malaysia Boleh! 4.2SC Chawton White, Stormers Tasmod's Sills, Wind Deflectors, LR Sills Clear Side Repeaters, Towbar Larini Sports Exhaust, K&N Air Filter ______________________________ WINNER - 2008 'Tech-Head Of The Year' Award WINNER - 2009 Outstanding Contribution WINNER - 2009 'Tech-Head Of The Year' Award |
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Mon Feb 02 2009 1:40am |
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umbertob Member Since: 22 Sep 2005 Location: Pasadena, CA Posts: 944 |
Paul, it's the miracle of electronics... If you pull the parking brake lever at any speed above 6 mph, the EPB module will electronically request the ABS module to apply brakes to all four wheels. When the car comes to a complete standstill, the hydraulic pressure from the ABS module is released and the parking brake engages normally on the rear drums. It's called "Dynamic Braking". The system is very sophisticated: During dynamic braking for example, the EPB module also monitors the deceleration ratio through the wheel speed sensors, and if for any reason (because of a defective ABS module, complete hydraulic failure or faulty CAN bus communication between the two modules, all of which would cause ABS not to operate as requested) it detects that the car is not slowing down at a specific rate, it automatically engages the parking brake shoes instead, so you will still come to a stop eventually, just not as quickly. If the ABS module works but is unable to apply brakes - e.g. because of hydraulic failure - the EPB will actually "use" the ABS module and sensors to apply the parking brake with anti-lock on the rear wheels, and still turn on the rear brake lights in the process! Pretty amazing. |
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Mon Feb 02 2009 2:41am |
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Bobby Member Since: 07 Jun 2005 Location: Kuala Lumpur Posts: 3781 |
umbertob, Malaysia Boleh!
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Mon Feb 02 2009 3:14am |
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PJPR01 Member Since: 12 Mar 2006 Location: Houston, Texas Posts: 355 |
Mlines - my hats off to you for that esoteric knowledge. This could definitely go into the thread of "things you didn't know about your RRS"...
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Mon Feb 02 2009 3:45am |
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Bobby Member Since: 07 Jun 2005 Location: Kuala Lumpur Posts: 3781 |
There have been a couple of TSBs issued in this respect and I think there was one issued this January. Basically it says that the causes of this 'screech' is that the brake shoes are corroded, worn or incorrectly adjusted.This will cause excessive lining wear and/or noise and heat. If this has been going on for awhile, the internal components of the EPB actuator may have over-travelled and may be jammed. Unnecessary operation of a jammed or over - travelled EPB Actuator should be avoided. Malaysia Boleh! 4.2SC Chawton White, Stormers Tasmod's Sills, Wind Deflectors, LR Sills Clear Side Repeaters, Towbar Larini Sports Exhaust, K&N Air Filter ______________________________ WINNER - 2008 'Tech-Head Of The Year' Award WINNER - 2009 Outstanding Contribution WINNER - 2009 'Tech-Head Of The Year' Award |
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Mon Feb 02 2009 4:23am |
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C10KO Member Since: 04 Jan 2009 Location: . . . searching . . . Posts: 1136 |
So what is really the proper way then when waiting at the lights?
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Mon Feb 02 2009 7:06am |
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XXXAngelXXX Member Since: 03 Mar 2006 Location: Krautland Posts: 10894 |
i never use the parking brake ....
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Mon Feb 02 2009 7:54am |
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Bobby Member Since: 07 Jun 2005 Location: Kuala Lumpur Posts: 3781 |
Coko, don't worry.
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Mon Feb 02 2009 7:55am |
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