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UHP (Universal Hands-Free Phone)
The Universal Hands-Free Phone module is available in two configurations
UHP high:
• Call Lists
• Call Handling
• Steering wheel control
• Status messages
• Phone book
• Bluetooth
o HFP (Hands-Free Phone profile 1.5)
o PBAP (Phone book access profile 1.0)
• Speech Recognition, including adaptive Echo and Noise reduction algorithm
I UHP embedded. This module provides an internal GSM module and comes therefore with
additional features.
• Bluetooth rSAP (Remote SIM Access Profile)
• Direct phone antenna connection due to integrated GSM module
• SMS handling, such as receiving, editing and sending messages
• Key Pad / Speller
All phone interaction and data transmission to UHP is done via Bluetooth.
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UHP Block Diagram
UHP High
UHP High
Controls &
sensors
Display
Faceplate
ODI
Silver Box
(radio)
Silverbox
(Radio)
Audio
(analog)
Speech
Recognition
Mic
MIC
Passthrough
Power Supply
ODI
MS GMLAN Dual Wire CAN
Bluetooth
antenna
Bluetooth
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UHP Embedded
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Connectors and pin assignment UHP
X1
X1-5
X1-6
1782
658
X1-7
X1-8
1792
654
X1-9
655
X1-10
X1-11
X1-12
5169
93
A55
0.14mm²
A55
0.14mm²
C55
P5
P5
0.14mm²
P8-P9
P7
P7
0.14mm²
P8-P9
P7
0.14mm²
B55
Pigtail Wire Color
5170
0.6mm2
0.14mm²
Pigtail Wire Gauge
X1-4
0.6mm2
Terminal Plating
I51
5169
Shield Group
X1-2
X1-3
Battery Positive Voltage (CL.30
Vbatt)
Signal Ground (CL.31 Ground)
Mid Speed GMLAN Serial Data (+)
(GMLAN-H)
Mid Speed GMLAN Serial Data (-)
(GMLAN-L)
Drain Wire (Mono Audio Shield)
Cellular Telephone Voice Signal
(Mono Audio +)
Drain Wire (Microphone Shield)
Cellular Telephone Microphone
Low Reference (Microphone
Common)
Cellular Telephone Microphone
Signal (Microphone Signal)
Not connected
Not connected
Mid Speed GMLAN Serial Data (+)
Twist Group & Rate
A40
Circuit Description
Max. Wire
Resistance
Circuit #
X1-1
Minimum Wire
Gauge
Cavity
X2 is
not
used
on
Saab
650
Page 95
X1-13
5170
X1-14
X1-15
659
X1-16
1792
X1-17
5152
X1-18
5149
GMLAN-H-out (passthrough)
Mid Speed GMLAN Serial Data (-)
GMLAN-L-out (passthrough)
Not connected
Cellular Telephone Voice Low
Reference (Mono Audio -)
Drain Wire (External Microphone
Shield)
Voice Recognition Audio Low
Reference (External Microphone
Common)
Voice Recognition Audio Signal
(External Microphone Tx Signal +)
94
0.14mm²
B55
0.14mm²
C55
P5
P16
0.14mm²
P17P18
P16
0.14mm²
P17P18
P16
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Low Speed CAN
ECU arrangement
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AOS (Automatic Occupant Sensing)
Automatic Occupant Sensing consists of a sensor (including a ECU) located in the front
passenger seat. It constantly checks the seats occupancy and sends its information to the
SDM.
AOS will only be assembled in cars that are sold in North America.
Block diagram AOS
Sensor and ECU is permanently
AOS connected!
Sensor
Hardwired
GMLAN
AOS
ECU
SDM
Functional description AOS
The AOS gets through multiple steps to determine the seat’s occupancy. They will be
explained in this chapter.
The sensor mat consists of discrete pressure sensors, shown on the
right. In the beginning of an identification process, the responses
of the sensors have to be analyzed by the ECU. Based on this
information the software generates a pressure profile for the seat.
The first step eventually is to convert an identified object into a
digital pressure profile.
The pressure profile is the base for the following object classification. The AOS distinguishes
between three classes:
Class 0: Empty seat
Class 1: CRS (Child Restraint Seat) or child
Class 2: Adult
Class 0 and 1 will send a message to suppress the passenger airbag. Class 0 will also turn
off the passenger seat belt reminder function.
Class 2 sends the message to enable passenger airbag.
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In the classification algorithm several steps will be performed by the ECU. In a first step, the
software classifies the seat as “occupied”. After that the CRS detection is run. If no CRS
could be found, the algorithm decides which kind of human is sitting in the seat. AOS can
distinguish whether a child or an adult is located in the seat.
Some examples of the classification process are shown below - the lower pictures show the
sensor mat’s state of activation, the upper ones represent the corresponding generated
digital pressure profile.
Childseat
62 lbs.
110 lbs.
The result of the AOS occupancy detection is stored in the memory of the AOS ECU and
thereafter sent to the SDM. Please note that finally the SDM has the duty to decide whether
passenger airbag is switched off or not. AOS just sends a classification.
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Connectors and pin assignment AOS
98
Terminal Plating
Shield Group
Twist Group & Rate
Minimum Wire
Gauge
Max. Wire
Resistance
Battery Positive
Low Speed GMLAN Serial Data 1
Low Speed GMLAN Serial Data 2
Battery GND
Spare
Spare
Pigtail Wire Color
A40
5060
5060
A51
Circuit Description
Pigtail Wire Gauge
A
B
C
D
E
F
Circuit #
Cavity
X1
0,35
0,35
0,35
0,35
red
yellow
white
brown
Page 100
BCM (Body Control Module)
The Body Control Module is the main controller for all body electronics.
Block diagram BCM
RF Receiver
Locks
Immo
Dimming
TPMS / ALM
Backlight
BCM
Current Sensor / EPM
-
Interior Lighting
Body
Control
Exterior Lighting
Module
HS CAN
Inadvertent Load
Gateway
LS CAN
Logistic Mode
Window Lifter (non-LIN)
Sensors
Functional description BCM
The Body Control Module is the master device for
several functions.
All these functions are explained in separate
chapters.
99