sensor LAMBORGHINI GALLARDO 2009 Manual PDF
Page 836 of 1659
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Fig.3 Fig.4
10 cm
A
%
'
C
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
& $ V V H P E O L Q J W K H W L U H V Z L W K 7 3 0 6 1. Position the rim ( A-Fig.3) on the tire changer.
1 R W H
Apply grease/soap on the tire surfaces that will come into contact with the rim..
2. Insert the tire on the rim and secure the rim itself using the column ( % ) L J ). Check that the TPMS sensor ( C-
Fig.4 ) is located approximately 10 cm from the column.
, I W K H 7 3 0 6 V H Q V R U ¶ V S R V L W L R Q L V Q R W R E V H U Y H G Z K L O H W K H O R Z H U S D U W R I W K H W L U H L V E H L Q J L Q V H U W H G R Q W R
W K H U L P L W F R X O G E H L U U H S D U D E O \ G D P D J H G
3. Insert the lower part of the tire, placing the sliding support ( ' ) L J ) on the tire and rotating the wheel slightly
more than 180° (clockwise).
Page 837 of 1659
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Fig.5
10 cm
C
%
Fig.6
'
Fig.7
A %
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
4. After inserting the lower part of the tire, position the wheel so that the TPMS sensor ( C-Fig.5) is located
approximately 10 cm from the column ( % ) L J ).
, I W K H 7 3 0 6 V H Q V R U ¶ V S R V L W L R Q L V Q R W R E V H U Y H G Z K L O H W K H W L U H L V E H L Q J G H ¿ Q L W L Y H O \ L Q V H U W H G R Q W R W K H
U L P L W F R X O G E H L U U H S D U D E O \ G D P D J H G
5. Insert the upper part of the tire, placing the sliding bearing ( ' ) L J ) on the tire and rotating the wheel slightly
more than 180° (clockwise).
6. After this half rotation, the pressure of the sliding support will correctly insert the tire onto the rim without
damaging the TPMS sensor ( Fig.6).
• , Q À D W H W K H W L U H
• Assemble the car’s wheel 3 R L Q W $ .
1 R W H
Three types of tires can be installed on the car ( Fig.7):
A. PZERO CORSA
% PZERO PUNTO
C. PZERO ROSSO
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Fig.9
) L J
A
% %
Fig.10
C
%
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
' $ V V H P E O L Q J W K H W L U H S U H V V X U H V H Q V R U V
1 R W H
Check that there are no burrs or corrosion on the hole ( $ ) L J ) where the valve is inserted.
1. Insert the valve ( % ) L J ) with the head (which contains the threaded hole for connecting the TPMS sensor)
facing toward the inside of the rim.
2. Insert the torsion bar ( C-Fig.10) in the valve’s hole ( % ) L J ).
Then insert the washer and nut and secure the valve using the torque wrench. 9 D O Y H D W W D F K P H Q W W L J K W H Q L Q J W R U T X H G
Page 839 of 1659
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Fig.11
Fig.12
C
%
(
'
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
3. Install the sensor ( ' ) L J ), tightening the relevant TPMS bolt ( ( ) L J ):
Insert the torsion bar ( C-Fig.12) in the valve’s hole ( % ) L J ), using the torque wrench.
6 H Q V R U D W W D F K P H Q W W L J K W H Q L Q J W R U T X H G Z L W K / R F W L W H V H D O D Q W
0 D N H V X U H W K D W W K H 7 3 0 6 V H Q V R U ¶ V W Z R S R L Q W V R I F R Q W D F W U H V W D J D L Q V W W K H U L P ) L J
Page 871 of 1659
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Fig.1 Fig.2 Fig.3
A
D
C
G
B
E
F
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
$ ' L V D V V H P E O L Q J W K H E U D N H E R R V W H U 3 U H O L P L Q D U \ R S H U D W L R Q V • Disassemble the luggage compartment (080603).
Left hand drive• Disassemble the ABS control unit (061403).
Right hand drive
• Disassemble the air conveyor (volute) (026003).
' L V D V V H P E O L Q J W K H E U D N H E R R V W H U1. Empty the reservoir ( A-Fig.1)(061107) .
2. Disconnect the pipe ( B-Fig.2).
3. Disconnect the 2 pipes ( C-Fig.1).
4. Disconnect the wiring harness ( D-Fig.1).
5. 5 H O H D V H W K H ¿ [ L Q J S L Q E) and remove the pin locking the brake booster to the pedal cluster ( F-Fig.3).
6. Unscrew the brake booster’s 2 stay-bolts ( G-Fig.2).
7. ( [ W U D F W W K H E U D N H E R R V W H U
7 K L V V H F W L R Q H [ S O D L Q V K R Z W R G L V D V V H P E O H A)
% U D N H E R R V W H U
% % U D N H Y D F X X P S X P S
C) Vacuum sensor D) Disassembling the pan ( ' L V D V V H P E O L Q J W K H E U D N H Y D F X X P S L S H
Page 874 of 1659
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Fig.7
A
C
B
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
& ' L V D V V H P E O L Q J W K H Y D F X X P V H Q V R U 3 U H O L P L Q D U \ R S H U D W L R Q V • Disassemble the luggage compartment (080603).
' L V D V V H P E O L Q J W K H Y D F X X P V H Q V R U 1. Disconnect the sensor ( A-Fig.7) from the brake booster reservoir.
2. Remove the clamp ( B-Fig.7) and disconnect the pipe from the vacuum sensor.
3. Disconnect the connector ( C-Fig.7) from the pressure sensor.
4. Remove the vacuum sensor.
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Fig.3
Fig.1 Fig.2
G
D
E
A
F
B
C
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
7 K L V V H F W L R Q H [ S O D L Q V K R Z W R D V V H P E O H A)
% U D N H % R R V W H U
% % U D N H Y D F X X P S X P S
C) Vacuum sensor
' $ V V H P E O L Q J W K H E U D N H R L O W D Q N
( $ V V H P E O L Q J W K H E U D N H Y D F X X P S L S H
$ $ V V H P E O L Q J W K H E U D N H E R R V W H U 1. Position the brake booster’s 2 stay-bolts ( A-Fig.1
).
2. , Q V H U W W K H S L Q D Q G F O L S R Q W K H ¿ [ L Q J S L Q % W R V H F X U H W K H E U D N H E R R V W H U W R W K H S H G D O F O X V W H U C-Fig.2).
3. & R Q Q H F W W K H Z L U L Q J K D U Q H V V D-Fig.3).
4. Connect the 2 pipes ( E-Fig.3).
5. Connect the pipe ( F-Fig.1).
6. Fill the reservoir ( G-Fig.3).
• $ V V H P E O H W K H O X J J D J H F R P S D U W P H Q W (080605).
Left hand drive • $ V V H P E O H W K H $ % 6 F R Q W U R O X Q L W (061405).
Right hand drive• $ V V H P E O H W K H D L U F R Q Y H \ R U Y R O X W H (026005).
% O H H G W K H E U D N H F L U F X L W
Page 882 of 1659
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Fig.7
C
A
B
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
& $ V V H P E O L Q J W K H Y D F X X P V H Q V R U 1.Connect the connector ( A-Fig.7) on the sensor.
2. 6 H F X U H W K H Y D F X X P V H Q V R U S L S H X V L Q J W K H F O D P S B-Fig.7).
3. Insert the sensor ( C-Fig.7) inside the brake booster reservoir.
• $ V V H P E O H W K H O X J J D J H F R P S D U W P H Q W (080605).
Page 887 of 1659
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Fig.1
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
$ % 6 6 \ V W H P
During braking the ABS function allows the modulation of the braking force effectively applied to each wheel, thus preventing one or more wheels from becoming blocked, which would otherwise cause the loss of control of the vehicle.
The control unit carries out the corrections to the braking by reading the relative speed of each wheel, obtained by special sensors (pick-up).
To guarantee a good signal quality, the distance between the pick-up and the phonic wheel must be between 0.9
÷ 1.0 mm. The electro-hydraulic control unit carries out all the corrections on the braking, using 4 ISO valves and 4
DUMP valves. When an ISO valve is closed, the disc brake calliper is isolated from the hydraulic pump.
The DUMP valve, on the other hand, is used to reduce the pressure of the corresponding disc brake calliper that
is present in the hydraulic circuit. If, during normal use of the vehicle, the ABS warning light on the dashboard is
switched on and the buzzer sounds at the same time, it means that the ABS control unit has found a fault in the
system. When the warning light is on the ABS does not work; this means that in the vehicle the braking system works
anyway, but the electronic control on the braking is deactivated. $ % 6 V \ V W H P Y D F X X P U H F R Y H U \ S X P S
The electric vacuum recovery pump is positioned in the front bumper area and is controlled by the MASTER engine injection control unit only with the engine running.
Its operation is determined by a pressure sensor that calculates its drop and makes the pump cut in to maintain the vacuum. Its operation can be checked by means of the LaRa-AS engine control unit “01” Basic setting 8 (109000).
Page 919 of 1659
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L714 06 18 00
Fig.3
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
7 K H ( 6 3 X V H V L Q I R U P D W L R Q S U R Y L G H G G L U H F W O \ I U R P V H Q V R U V •Yaw rate and lateral acceleration; sensor located in the passenger compartment on the bench
• Steering angle; sensor located on the steering column
• Brake pressure; sensor
• Wheel speed sensors; the same as for the ABS
' D W D S U R F H V V H G G L U H F W O \ E \ W K H F R Q W U R O X Q L W U H F H L Y H G I U R P V H Q V R U V L J Q D O V • linear speed of the vehicle
• À R D W D Q J O H G L U H F W L R Q R I P R W L R Q Z L W K U H V S H F W W R W K H O R Q J L W X G L Q D O D [ L V R I W K H Y H K L F O H
• lateral forces acting on the wheels
• sideslip angle
• lateral speed of the vehicle
7 K H ( 6 3 F R Q W U R O X Q L W F R Q W L Q X R X V O \ F K H F N V W K D W W K H \ D Z U D W H D Q G À R D W D Q J O H G R Q R W G L Y H U J H , I V R W K H F R Q W U R O X Q L W
brakes one or two wheels to create a yaw moment that places the car in the direction requested by the driver.
7 K H S U R J U D P L V E D V H G R Q G D W D U H J D U G L Q J W K H P D [ L P X P S R W H Q W L D O O D W H U D O D F F H O H U D W L R Q R I W K H F D U D Q G R W K H U G D W D W K D W
U H À H F W V W K H G \ Q D P L F E H K D Y L R U + + & + L O O + R O G H U & R Q W U R O The ³ + L O O + R O G H U & R Q W U R O ´ + + & system helps and makes it easier for the driver to drive off going uphill.
It goes into operation when the ESP detects a change of gradient when the vehicle is running.
7 K H ( 6 3 W K H U H I R U H V H W V L W V H O I X S W R L Q W H U Y H Q H G X U L Q J W K H X S K L O O S L F N X S L I ¿ U V W J H D U L V H Q J D J H G D Q G W K H E U D N H S H G D O L V being pressed down.
In this case, the pressure of the brake calipers is kept for about 1.5 seconds after the brake pedal is released so the
driver can easily drive off pressing the accelerator pedal without the vehicle quickly backing up.
7 K H + L O O + R O G H U I X Q F W L R Q L V Q R W D F W L Y D W H G Z K H Q G U L Y L Q J R I I G R Z Q K L O O Z L W K ¿ U V W J H D U H Q J D J H G
The same is true when reverse gear is engaged. The system is activated in uphill starts (but in reverse gear), but is deactivated in downhill starts.