Calibrating Can-Based Wheel Angle Sensor - Danfoss PVED-CLS User Manual

ENGINEERING TOMORROW
Name
Calibration counter -
P3771 U8
Spool calibration
Bit inverted value for
"Calibration counter - P3772 U8
Spool calibration"
Calibration counter -
Analogue WAS P3773 U8
calibration
Bit inverted value for
"Calibration counter -
P3774 U8
Analogue WAS
calibration"
Calibration counter -
P3775 U8
CAN WAS calibration
Bit inverted value for
"Calibration counter - P3776 U8
CAN WAS calibration"

Calculate the sector CRC as CRC-16-
(P3789). For example of how to calculate sector CRC, please see paragraph 16.4.2.
Write parameters to PVED-

Put PVED-

For MAIN-controller:
o
o
Read back data (verification)
o
Acknowledge data correctness
o
To sign acknowledge, calculate signature CRC and write it at the CRC/signature address (P48)
o

For SAFETY-controller:
o
o
Read back data (verification)
o
Acknowledge data correctness
o
To sign acknowledge, calculate signature CRC and write it at the CRC/signature address (P48)

Calculate the sector CRC as CRC-16-
(P3789). For example of how to calculate sector CRC, please see paragraph 16.4.2.

16.5.3 Calibrating CAN-based wheel angle sensor

The following description explains how to manually calibrate your CAN-based wheel angle sensor. The procedure
consists of three main steps:
1. Read sensor values
2. Data sector preparation
3. Write parameters to PVED-
The following is a more detailed description of each main step:
Read sensor values

Put PVED-

Turn wheels into far left angle position
Description of parameter
dec Calibration counter - Spool calibration
dec Bit inverted value for "Calibration counter - Spool calibration"
dec Calibration counter - Analogue WAS
dec Bit inverted value for "Calibration counter - Analogue WAS"
dec Calibration counter - CAN WAS
dec Bit inverted value for "Calibration counter - CAN WAS"
Analogue Wheel Angle Sensor Calibration data
Production/Calibration Flag
Analogue Wheel Angle Sensor Calibration data
OEM
OEM
OEM
OEM
OEM
OEM
Table 76
Range
0 255 0
0 255 255
0 255 0
0 255 255
0 255 0
0 255 255
CRC/Checksum address
CRC/Checksum address