BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BIMMERPOST Universal Forums General BMW News and Cars Discussion BMW's First 48V Mild Hybrid System Will See First Action in 5 Series

Post Reply
 
Thread Tools Search this Thread
      09-19-2019, 06:06 PM   #1
Jason
Administrator
Jason's Avatar
United_States
22646
Rep
19,847
Posts

Drives: F80 M3
Join Date: Mar 2005
Location: USA

iTrader: (0)

BMW's First 48V Mild Hybrid System Will See First Action in 5 Series

BIMMERPOST NEWS
BMW Announces First 48V Mild Hybrids
17
COMMENTS

BMW has announced its first mild hybrid 48V models, starting with 5 Series diesels.

What is a mild-hybrid? They are vehicles that run off a 48V battery system instead of the traditional 12V system. Mild hybrids feature a larger 48V battery that works with the conventional 12V battery. The 48V often features an integrated starter generator (which it does in BMW's just announced system), which acts as both a starter motor and a power bank to assist the engine.

The big difference between a mild hybrid and a full hybrid is that the electric motor in a mild hybrid does not actually propel the vehicle on its own. The electric motor serves only to assist the the gasoline or diesel engine. The electric motor in a mild hybrid is acting as a power booster. It also saves fuel by shutting off the gasoline/diesel engine when the vehicle is stopped, braking or cruising. The electric motor also helps the engine restart with improved efficiency.


BMW's announcement:

BMW 5 Series: mild-hybrid technology for extra sprinting power and efficiency.

September 17, 2019

In autumn 2019, BMW will present another element in its powertrain electrification strategy to accompany the ongoing expansion of its plug-in hybrid line-up. Mild-hybrid technology will make its debut in the BMW 5 Series, where it will help to both lighten the combustion engine’s workload and boost its power, meaning not just superior efficiency but sharper performance. Fitting an extremely powerful 48V starter-generator and a second battery significantly enhances the functionality of Brake Energy Regeneration by enabling the energy recuperated when braking or on the overrun to be harnessed not just for powering electrical vehicle functions, but for generating additional drive power. For this, the 48V starter-generator acts likes an electric drive unit that assists the engine, allowing the latter to operate within an efficiency-optimised load range as frequently as possible. An electric overboost function, meanwhile, injects an extra dose of dynamism when accelerating under full throttle.

The 48V starter-generator has the additional benefit of allowing the engine to be switched off with remarkably little vibration and restarted more smoothly when using the Auto Start Stop function. This also makes it possible to completely shut off the engine in coasting mode, rather than just disconnecting it from the drivetrain. As of November 2019, mild-hybrid technology will be fitted as standard on the BMW 520d Sedan (fuel consumption combined: 4.1 – 4.3 l/100 km; CO2 emissions combined: 108 –112 g/km), BMW 520d xDrive Sedan (fuel consumption combined: 4.5 – 4.7 l/100 km; CO2 emissions combined: 117 – 123 g/km), BMW 520d Touring (fuel consumption combined: 4.3 – 4.5 l/100 km; CO2 emissions combined: 114 – 118 g/km) and BMW 520d xDrive Touring (fuel consumption combined: 4.7 – 4.9 l/100 km; CO2 emissions combined: 124 – 128 g/km). The fuel consumption figures of the 140 kW/190 hp four-cylinder diesel engine that powers this quartet of models will be cut by up to 0.3 litres per 100 kilometres as a result.

The enhancements to the BMW 5 Series range also include the introduction of BMW Laserlight on further model variants. This lighting technology – which increases high-beam range to a maximum 650 metres – will be added to the wealth of innovations aboard both the BMW M550d xDrive Sedan and BMW M550d xDrive Touring from November 2019.

__________________
Check on the Latest BMW News
Become a fan of Bimmerpost Facebook
Follow us on Bimmerpost Twitter
Subscribe to Bimmerpost Youtube Channel
Appreciate 1
      09-20-2019, 11:16 AM   #2
Miko M
///M
Miko M's Avatar
United_States
4150
Rep
2,746
Posts

Drives: M5/M240xi
Join Date: May 2018
Location: Wisconsin

iTrader: (0)

Finally!

Mercedes took a lead a while back
__________________
Life is too short...enjoy your life
///M
Appreciate 3
zamboni484.50
clee1982478.00
M 4EVER162.00

      09-20-2019, 11:33 AM   #3
JRobUSC
Second Lieutenant
United_States
614
Rep
288
Posts

Drives: Mineral Gray 2019 330i xDrive
Join Date: Jul 2011
Location: United States

iTrader: (0)

Quote:
Originally Posted by Miko M View Post
Finally!

Mercedes took a lead a while back
Finally, yes, but Mercedes didn't take the lead with anything. BMW's CLAR architecture was designed from the get go to use 48V systems, BMW could have been first out of the gate in 2015 with them. But those initial 48V systems were expensive, heavy and didn't add any extra performance or fuel economy benefits, so BMW decided not to implement them. As an example of this, look at any Mercedes or Audi model thus far that has a 48V system, and notice that despite the high power figures they're (at best) no quicker (and usually slower) than the "less powerful" BMW equivalents that don't have the 48V system, with fuel economy that is likewise no better or behind. The only tangible benefit to the first gen systems has been the advent of active suspensions (MB GLE/GLS, Audi A8, etc.), but those suspensions are optional and cost a small fortune, and as such, almost no vehicles actually have them. Frankly I applaud BMW for not doing what they usually do, and adding unnecessary technology just for the sake of saying they had it. BMW waited until the tech was worth having, and I'm pretty excited to see the results.
Appreciate 5
      09-20-2019, 11:38 AM   #4
bimmer456
Brigadier General
1758
Rep
4,992
Posts

Drives: 340i
Join Date: Nov 2016
Location: Pasadena, CA

iTrader: (0)

What's the fuel economy? Meh, I'd rather wait for the all electric 5 series after I get my solar panels. The M5e.
Appreciate 0
      09-20-2019, 11:39 AM   #5
Wills2
Barge driver
Wills2's Avatar
United Kingdom
5077
Rep
9,287
Posts

Drives: G11 740d xdrive
Join Date: Aug 2014
Location: West Yorkshire

iTrader: (0)

So I guess the LCI 5er will be out then?
__________________
G11 740d xdrive/Z4C, Gone F80 M3/F10 M5/F31 335d/e92 M3 x 2/F10 520d x 2/997 C2S/e46 M3/e46 320d/SL320/Touareg 3.2V6/Audi allroad 2.7TDi
Appreciate 0
      09-20-2019, 12:24 PM   #6
vladberca
Major General
vladberca's Avatar
Romania
541
Rep
5,304
Posts

Drives: '17 jetta tdi 6mt
Join Date: Oct 2009
Location: Craiova

iTrader: (0)

Curious about the price evolution too.
How close it will be to the 525d model? 🤔
Appreciate 0
      09-20-2019, 02:18 PM   #7
billnchristy
Lieutenant
154
Rep
403
Posts

Drives: 2019 X2 m35i
Join Date: Feb 2019
Location: Atlanta

iTrader: (0)

Garage List
Mild hybrids are stupid. Look at the Suburban hybrid and other half-assed attempts that GM made.

You might get 1-2mpg if you're lucky.
Appreciate 1
JordW4.00

      09-20-2019, 04:13 PM   #8
clee1982
Major
United_States
478
Rep
1,254
Posts

Drives: 2019 BMW 540i xDrive
Join Date: Nov 2018
Location: NYC

iTrader: (0)

Garage List
Is the point of hybrid more about performance? And lots of small benefit like creep silently... and much more seamless start/stop
Appreciate 0
      09-20-2019, 05:04 PM   #9
mbanck
Private First Class
70
Rep
156
Posts

Drives: Skoda Karoq
Join Date: Sep 2018
Location: Munich, Germany

iTrader: (0)

Quote:
Originally Posted by Wills2 View Post
So I guess the LCI 5er will be out then?
No, the LCI will still be out in mid-2020. BMW just decided to ship all(?) the tech beforehand: First the iDrive7 / digital cluster in mid 2019 and now the 48V mild hybrid in late 2019.
Appreciate 0
      09-21-2019, 02:30 PM   #10
JSP
Enlisted Member
Canada
5
Rep
48
Posts

Drives: 330i
Join Date: Apr 2006
Location: Vancouver, BC

iTrader: (0)

Quote:
Originally Posted by clee1982 View Post
Is the point of hybrid more about performance? And lots of small benefit like creep silently... and much more seamless start/stop
That’d be nice. Unfortunately AFAIK by definition mild hybrids cannot creep on electricity alone.
Appreciate 0
      09-21-2019, 04:26 PM   #11
SteveinArizona
Lieutenant Colonel
United_States
884
Rep
1,627
Posts

Drives: BMW 530e
Join Date: Jul 2016
Location: Greater Phoenix

iTrader: (0)

Quote:
Originally Posted by clee1982 View Post
Is the point of hybrid more about performance? And lots of small benefit like creep silently... and much more seamless start/stop
I have the 530e and one of the nice things about it is that it DOESN'T have stop/start. It just defaults to electric mode when "stopped" and creeps forward if the foot comes off the brake.

So...at least for the current generation of BMW phevs, no stop start, not even a seamless one.
Appreciate 1
JordW4.00

      09-21-2019, 05:54 PM   #12
JustChris
Lieutenant General
JustChris's Avatar
United Kingdom
8044
Rep
17,254
Posts

Drives: BMW
Join Date: Jul 2013
Location: Uk

iTrader: (0)

Quote:
Originally Posted by SteveinArizona View Post
Quote:
Originally Posted by clee1982 View Post
Is the point of hybrid more about performance? And lots of small benefit like creep silently... and much more seamless start/stop
I have the 530e and one of the nice things about it is that it DOESN'T have stop/start. It just defaults to electric mode when "stopped" and creeps forward if the foot comes off the brake.

So...at least for the current generation of BMW phevs, no stop start, not even a seamless one.
Yes of course, not thought about that as so used to ASS. So no ASS off button by the START/STOP button I assume?
__________________
BMW X3 M40d Performance Auto
Sophisto Grey Metallic with Oyster Leather
Comfort Package + M Sport Plus Package + Technology Package
Appreciate 0
      09-22-2019, 08:29 AM   #13
SteveinArizona
Lieutenant Colonel
United_States
884
Rep
1,627
Posts

Drives: BMW 530e
Join Date: Jul 2016
Location: Greater Phoenix

iTrader: (0)

Quote:
Originally Posted by JustChris View Post
Yes of course, not thought about that as so used to ASS. So no ASS off button by the START/STOP button I assume?
Correct! No ASS off button needed nor existent.
Appreciate 0
      09-22-2019, 03:23 PM   #14
BimmerMat135
Major
Canada
420
Rep
1,241
Posts

Drives: E82M/F31 328XD
Join Date: Feb 2010
Location: Montréal Canada

iTrader: (0)

Will this be available with the 6 speed manual? It seem like the 520d was one of the rare G30 available with a stick.
Appreciate 0
      10-05-2019, 03:09 AM   #15
beanbaguk
Captain
beanbaguk's Avatar
Spain
261
Rep
849
Posts

Drives: BMW G30 520d M-Sport
Join Date: Feb 2015
Location: Costa del Sol

iTrader: (0)

Quote:
Originally Posted by billnchristy View Post
Mild hybrids are stupid. Look at the Suburban hybrid and other half-assed attempts that GM made.

You might get 1-2mpg if you're lucky.
How is that stupid? 1-2mpg extra for me is a massive saving.

I drive 600 miles per week (just over 27,500 miles per year), so the cost savings will be substantial for me and other drivers who do the same along with more power.

Still think it's stupid?
__________________
Current car: 2017 BMW G30 520d M-Sport, BMW F46 218d Grand Tourer
Previous cars: 1989 BMW E30 316i, 1998 BMW E36 323i Coupe M Sport, 2009 BMW E87 116d, 2013 BMW F31 320d M-Sport
Appreciate 0
      10-05-2019, 03:09 AM   #16
beanbaguk
Captain
beanbaguk's Avatar
Spain
261
Rep
849
Posts

Drives: BMW G30 520d M-Sport
Join Date: Feb 2015
Location: Costa del Sol

iTrader: (0)

Quote:
Originally Posted by BimmerMat135 View Post
Will this be available with the 6 speed manual? It seem like the 520d was one of the rare G30 available with a stick.
But why would you want to drive a four pot diesel with a manual gearbox?
__________________
Current car: 2017 BMW G30 520d M-Sport, BMW F46 218d Grand Tourer
Previous cars: 1989 BMW E30 316i, 1998 BMW E36 323i Coupe M Sport, 2009 BMW E87 116d, 2013 BMW F31 320d M-Sport
Appreciate 0
      10-07-2019, 08:58 PM   #17
BM dnobagaV
Banned
BM dnobagaV's Avatar
United_States
365
Rep
461
Posts

Drives: 2010 BMW 528i
Join Date: Apr 2018
Location: Dreamville

iTrader: (0)

Quote:
Originally Posted by beanbaguk View Post
But why would you want to drive a four pot diesel with a manual gearbox?
Because it's cheap and economical. And because a manual is more involving than an automatic.
Appreciate 0
      10-22-2019, 03:12 AM   #18
TerryMulhern
Registered
TerryMulhern's Avatar
0
Rep
4
Posts

Drives: 2008 Mazda MX-5 Miata
Join Date: Mar 2019
Location: Corpus Christi

iTrader: (0)

Quote:
Quote source: BMW 5 Series Gets Mild Hybrid Powertrain In Europe by Nico Ylanan essay summary

As part of its electrification strategy to grow its alternative-power vehicles, BMW will introduce a mild-hybrid option for the 2019 BMW 5 Series in November. Accompanying the plug-in hybrids in the line-up, the aim of this new system is to lighten engine workload and boost performance, resulting in better numbers at the pump without compromising on driving dynamics.

I'm so excited about it. Can't find any updated news about the exact November release date. My childhood dream was to become a BMW mechanic guy lol. Now, I'm an automotive engineer in a Chinese car company.
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 03:07 AM.




bmw
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST