Jason C
07-25-2005, 06:11 AM
So as I creep ever-closer to the first of the BMW classes, I've started to look more *in-depth* into the operations of your average "modern" BMW. How these things manage to go down the road without grinding to an irreparable halt, I don't know. And that's the amazing thing, really - when learning more about cars, the oft-heard observation is not "Wow, it's so cool that it works that way!" but more "Damn, I can't believe they actually make all this shit work, and that it don't uselessly leave their owners on the side of the road all the time."
So what kind of madness am I talking about? Here's the BUS SYSTEM structure of our favorite bangle-fied 7-series. It has been posted before:
http://forums.carmudgeons.com/album_pic.php?pic_id=661
And here it is, the legible edition:
http://forums.carmudgeons.com/album_pic.php?pic_id=819
Let's zoom in on the K-CAN S and K-CAN P area (K-CAN stands for Body-Controller Area Network):
http://forums.carmudgeons.com/album_pic.php?pic_id=820
Inside it , we find the following computer modules:
K-CAN S - Body-CAN System
Automobile body main line system
AHM----TRAILER module
BZM----CENTER console operating center
BZMF----CENTER console operating center rear
CIM----CHASSIS integration module
CON----CONTROLLER
DWA----ANTI-Theft alarm system
IHKA----INTEGRATED heating and air conditioning
LM----LIGHT module
PDC----PARK distance control
RDC----TYRE pressure warning system
RLS----RAIN/LIGHT sensor
SH----PARK heating
SHD----SLIDE/TILT sunroof
WIM----WIPER module
K-CAN P - Body-CAN Periphery
Automobile body periphery main line
CAS----CAR access system
HKL----TAILGATE lift
PM----POWER module
SMBF----PASSENGER seat module
SMBFH----PASSENGER seat module rear
SMFA----DRIVER seat module
SMFAH----DRIVER seat module rear
TMBFT----DOOR module passenger door
TMBFTH----DOOR module passenger door rear
TMFAT----DOOR module driver door
TMFATH----DOOR module driver door rear
Those aren't even the fiber-optic networks (that would be MOST and byteflight).
More in the next few months.
"You just ask some of the students here and they'll tell ya - how hard can it be, power window controls? You think, it's a power window - I press the button, it goes up, it goes down. There! That's it. Simple as that. Oh no, it isn't! You got regular up, down, soft up and down, one-touch up and down, you can do it with the turn of the key, the keyfob, anti-trap, disabling anti-trap for the windows AND the moonroof, two different modes when disabling it..." -BMW Instructor
So what kind of madness am I talking about? Here's the BUS SYSTEM structure of our favorite bangle-fied 7-series. It has been posted before:
http://forums.carmudgeons.com/album_pic.php?pic_id=661
And here it is, the legible edition:
http://forums.carmudgeons.com/album_pic.php?pic_id=819
Let's zoom in on the K-CAN S and K-CAN P area (K-CAN stands for Body-Controller Area Network):
http://forums.carmudgeons.com/album_pic.php?pic_id=820
Inside it , we find the following computer modules:
K-CAN S - Body-CAN System
Automobile body main line system
AHM----TRAILER module
BZM----CENTER console operating center
BZMF----CENTER console operating center rear
CIM----CHASSIS integration module
CON----CONTROLLER
DWA----ANTI-Theft alarm system
IHKA----INTEGRATED heating and air conditioning
LM----LIGHT module
PDC----PARK distance control
RDC----TYRE pressure warning system
RLS----RAIN/LIGHT sensor
SH----PARK heating
SHD----SLIDE/TILT sunroof
WIM----WIPER module
K-CAN P - Body-CAN Periphery
Automobile body periphery main line
CAS----CAR access system
HKL----TAILGATE lift
PM----POWER module
SMBF----PASSENGER seat module
SMBFH----PASSENGER seat module rear
SMFA----DRIVER seat module
SMFAH----DRIVER seat module rear
TMBFT----DOOR module passenger door
TMBFTH----DOOR module passenger door rear
TMFAT----DOOR module driver door
TMFATH----DOOR module driver door rear
Those aren't even the fiber-optic networks (that would be MOST and byteflight).
More in the next few months.
"You just ask some of the students here and they'll tell ya - how hard can it be, power window controls? You think, it's a power window - I press the button, it goes up, it goes down. There! That's it. Simple as that. Oh no, it isn't! You got regular up, down, soft up and down, one-touch up and down, you can do it with the turn of the key, the keyfob, anti-trap, disabling anti-trap for the windows AND the moonroof, two different modes when disabling it..." -BMW Instructor