Parking Assistance; Notions For Calculating Distance From Obstacles - Alfa Romeo 159 Training Material

ELECTRICAL
SYSTEM
Tyre pressure ECU
Pin N.
10
11
12
13
14
15
16
17
18

9.6 PARKING ASSISTANCE

The parking assistance system provides information on distance between obstacles in front of and behind the car
while parking. The system helps the driver by identifying obstacles outside the driver's view.
The driver is informed on the presence and distance of the car from the obstacle by means of acoustic signals whose
frequency depends on the distance and on the display by means of visual indications.
The driver can avoid collisions by integrating direct visual information with the acoustic warning generated by the
system.

9.6.1 Notions for calculating distance from obstacles

The ECU generates a sequence of ultrasound pulses which are reflected by the obstacle through sensors built into
the bumpers. The reflected pulses are captured by the sensors which amplify and convert them into a digital signal.
Traccia Didattica Alfa 159-en-ridotta.doc
ALFA 159 TRAINING MATERIAL
1 +30
2 LF_Supply
3 TPM_Request_RL_Output
4 TPM_Request_FL_Output
5 TPM_Request_FR_Output
6 TPM_Request_RR_Output
7 Not_Used
8 Not_Used
9 Not_Used
GND
Not_Used
LF_Ground
LF_Ground
LF_Ground
LF_Ground
+15
K_Line
A_Bus
Description
281/319
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