2009 LAMBORGHINI MURCIÉLAGO fuel type
[x] Cancel search: fuel typePage 284 of 1173
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Fig.2
® 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 $
Fuel pump
The two fuel pumps are supplied by a relay controlled by LIE control unit. For safety reasons the pump relevant to
cylinder bank 1-6 is controlled by LIE control unit of cylinder bank 7-12 and vice versa. They are roller type positive displacement pumps with permanent magnet energizing.
, Q V L G H W K H S X P S W K H U H L V D S U H V V X U H U H O L H I Y D O Y H W K D W V K R U W V W K H L Q W D N H Z L W K W K H G H O L Y H U \ L I W K H S U H V V X U H H [ F H H G V bars.
7 K H S X P S L V D O V R H T X L S S H G Z L W K D F K H F N Y D O Y H W K D W I R U D F H U W D L Q S H U L R G R I W L P H F D Q K R O G W K H V \ V W H P X Q G H U S U H V V X U H
with the pump at a standstill. This valve is especially important since by holding the system pressure it prevents fuel vapor from forming (vapor-lock) that causes damage when starting up with a warm engine.
7 K H L Q W D N H S L S H R I H D F K S X P S L V H T X L S S H G Z L W K D S U R W H F W L R Q S U H ¿ O W H U L Q V L G H W K H W D Q N
Fuel Filter
7 K H ¿ O W H U L V ¿ W W H G D O R Q J W K H I X H O G H O L Y H U \ S L S H G R Z Q V W U H D P R I W K H S X P S
It consists of an aluminum foil wrapping and an internal polyurethane support around which is wound a powerful
¿ O W H U L Q J H O H P H Q W
The arrow indicates the assembly direction (Fig.2).
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® 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 $
Injection System
The aim of the injection management strategies is to supply the engine with the correct amount of fuel at the required
moment according to the engine operating conditions.
The injection management is essentially the calculation of the injection time, the determination of the injection timingand the subsequent actuation through the injector control.
The “basic” injection time is calculated by a mathematical interpolation of the speed-load map: The values contained
L Q W K H P D S R E W D L Q H G H [ S H U L P H Q W D O O \ D O V R G H S H Q G R Q W K H L Q M H F W R U V S H F L ¿ F D W L R Q V
7 K H ³ ¿ Q D O ´ L Q M H F W L R Q W L P H L V R E W D L Q H G E \ D F D O F X O D W L R Q D O J R U L W K P L Q Z K L F K W K H ³ E D V L F ´ W L P H L V F R U U H F W H G E \ F R H I ¿ F L H Q W V
that take into account the different engine operating conditions both at sea level and at altitude, which are indicated by the various sensors installed in the system.
0 L [ W 0 L [ W X U X U X U H H 6 6 W U W U W U H Q J W K H Q J W K & K H F N F K H F N L Q I I H H G E H H G E H H G E D F N D F N F O R F O R V H G H G O R R S O R R S
7 K L V V W U D W H J \ F R U U H F W V W K H L Q M H F W L R Q W L P H V V R W K D W W K H P L [ W X U H V W U H Q J W K À X F W X D W H V F R Q W L Q X D O O \ 7 K H I U H T X H Q F \ R I W K H À X F W X D W L R Q F K D Q J H V D F F R U G L Q J W R W K H H Q J L Q H O R D G D Q G V S H H G
The ratio below is the mixture ratio and is indicated with the Greek letter á (alpha): Quantity of air taken in by the engine
Quantity of injected fuel
The ratio below is the stoichiometric mixture ratio and is indicated with a st: Theoretical quantity of air to burn - All the injected fuelQuantity of injected fuel
The ratio below is the mixture titration and is indicated with the Greek letter ë (lambda): Quantity of air taken in by the engine
.
Theoretical quantity of air to burn - All the injected fuel
The stoichiometric ratio depends on the type of fuel: For current unleaded petrol it is equivalent to approx. 14.7, that corresponds to a lambda titration = 1.
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® 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 $
A rich mixture is when the air quantity is less than the stoichiometric quantity and in this case we have Ilios lambda <1;
A weak mixture is when the air quantity is greater than the stoichiometric quantity and in this case we have Ilios
lambda >1;
7 K H I H H G E D F N R S H U D W L R Q F O R V H G O R R S S H U P L W V W K H F D W D O \ W L F F R Q Y H U W H U V W R R S H U D W H H I ¿ F L H Q W O \ 7 K L V R S H U D W L Q J F R Q G L W L R Q
also enables the engine control
unit to run its self-learning function.
The pre-catalytic oxygen sensors are linear and allow the engine to continuously operate under strengthcontrol; even in the WOT condition, the strength is guaranteed by the control system.
Cold Start and Running
The injection time during the starter motor actuation is determined by a special mapping according to the coolant and oil temperatures: After ignition has taken place the system passes over to the standard speed-load mapping.
When there is a cold start, since there is a natural impoverishment of the mixture due to reduced evaporation and heavy condensation on the inner walls of the fuel intake manifold, the “basic” injection time is increased by a
P X O W L S O \ L Q J F R H I ¿ F L H Q W D F F R U G L Q J W R W K H H Q J L Q H W H P S H U D W X U H $ F F H O H U D W L R Q D Q G ' H F H O H U D W L R Q
Acceleration and deceleration are interpreted by the system as transient stages between two stationary conditions:
This may be positive (acceleration) or negative (deceleration).
The transient strategy is very complicated since many factors have to be taken into consideration.
Usually the injection time is increased for positive transients and decreased for negative transients.
The size of the correction depends basically on the engine load variation: However, also values such as throttle
movement speed (inside the throttle bodies), engine speed, engine temperature (coolant and intake air) are also involved. Injector Control
The injector control is a timed sequential type. Rotation Speed Limiting
The strategy limits the peak speed that can be reached by enabling the cut-off when the engine reaches this speed.
Peak speed = 8150 rpm
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Fig.4A
%C ' (
F
GH
I
A
(
H
® 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 $
Injectors
The task of the injector is to deliver the amount of fuel required for the engine operation: The fuel is injected into theintake duct, immediately upstream of the intake valves.
As the pressure differential is constant between inside and outside the injector (due to the regulator), the quantity of
fuel delivered, with the same electric power depends only on the opening time, established by the control unit.
The injector is the “top-feed” type with the fuel supplied from the rear of the body ( H-Fig.4), where the electric
winding ( ' ) L J ) is also located, connected to connector ( ( ) L J ). The needle ( % ) L J ), integral with the anchor
( C-Fig.4 ), is thrust against the seal seat by a spring ( I-Fig.4).
: K H Q F X U U H Q W S D V V H V W K U R X J K W K H Z L Q G L Q J W K H P D J Q H W L F ¿ H O G F U H D W H G D W W U D F W V W K H D Q F K R U C-Fig.4) and as a
consequence the needle ( % ) L J R S H Q V W K H L Q M H F W R U D Q G W K H I X H O À R Z V W K U R X J K
When the current ceases, the shutter is called back into position by the spring ( I-Fig.4).
, Q M H F W R U ) L J
1. Snug
2. Needle
3. Magnetic anchor
4. Winding
5. Connector
6. Filter
7. Spring thruster
8. Body
9. Return spring
Page 306 of 1173
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Fig.1
1-6
7-12
RTA 2RTA 1
RTA 1RTA 2
BDCA
® 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 U L Q W D N H P D Q L I R O G The intake system is divided into two parts, one for each cylinder bank. Each part consists of: •
An air cleaner with a connecting sleeve to the relevant throttle bodies
• An intake manifold, variable volume type, on which four throttle bodies and a fuel manifold are installed;
, Q W D N H P D Q L I R O G V S Q H X P D W L F F R Q Q H F W L R Q V ) L J
A. $ L U ¿ O W H U V
B. Sleeve
C. Intake manifold
D. Throttle bodies
F ly : e l l
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® 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 $
/ , (
The LIE system is a system that integrates a digital electronic ignition spark advance and static timing system with an electronic indirect fuel injection system of the multiple timed sequential type.
According to the engine structure, which has the cylinders divided into two cylinder banks, two complete systems that
are suitably synchronized with each other have been applied, and each controls a cylinder bank of six cylinders. As
a consequence there are two engine control units, connected to each other by the CAN line, managing the injection
and ignition of each cylinder bank and four throttle bodies connected to each other by CAN lines and electronically
controlled by LIE control units through the ETB control units. These control units are also connected by the CAN line
to the GFA control unit that co-ordinates and manages many functions especially concerning diagnostic. The system can be divided into the following sub-systems: ELECTRICAL/ELECTRONIC SYSTEM
FUEL SUPPLY SYSTEM
INTAKE SYSTEM
THROTTLE BODIES GENERAL DESCRIPTION
EXHAUST SYSTEM
ANTI-EVAPORATION DEVICES The system can properly acquire the following parameters: •Engine speed;
• Correct TDC sequence of the cylinders (injection timing);
• Absolute pressure in the intake manifold;
• Throttle position and position variation;
• Accelerator pedal position;
• Intake air temperature;
• Engine coolant temperature;
• Exhaust gas internal temperature;
• Mixture strength;
• Battery voltage;
• Possible start-up of air conditioner;
• Pressure in the exhaust manifold;
• Pressure in the fuel anti-evaporative circuit.
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Fig.5
® 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 $
The & + ( & . / , 6 7 1 B / 3 B 0 < screen (Fig.5) shows all of the operation parameters for the system’s various
functions for controlling the engine:
5 S P : Engine speed
( F X 2 Q ' H F ECU operation time starting when the key is turned to ON (cylinder bank 1)
( F X 2 Q ' H F ECU operation time starting when the key is turned to ON (cylinder bank 2)
$ Y Y 0 6 H F Engine cranking time
& U D Q N 3 K D V H Fuel enrichment during cranking meter (goes from 0 to 255 and stops)
. 7 - & N 3 K V 7 + R Fuel enrichment meter percentage during phase 1 according to water temperature
7 - ( Q G Final engine injection time, cylinder banks 1 and 2
9 % D W W Battery voltage (must be between 11 and 15 Volts)
3 X U J H V R O H Q R L G P D Q D J H P H Q W W K H Y D O X H R I W K H V H S D U D P H W H U V P X V W Q R W Y D U \ P R U H W K D Q
3 * 5 H T X H V W Purge solenoid opening percentage requested by system
3 X U J H B $ F W X D O ' X W \ Purge solenoid opening percentage based on the system’s request (maximum 99%)
3 X U J H B 7 S Estimated fuel density in the air arriving from the purge solenoid; the higher the value, the more fuel
arrives from the canister. Maximum acceptable value: 0.065 (beyond this value the canister is considered full and
there is probably an engine malfunction)
3 X U J H B 4 % & 3 X U J H Estimated fuel vapor mass arriving from purge solenoid toward engine
3 I X H O Fuel pressure inside tank (must be negative)
6 $ ( Q G Final spark advance, cylinder bank 1 and 2
( Q J L Q H V \ V W H P
( Q J L Q H 6 \ Q F 1 indicates synchronism OK (the system is correctly synchronized); if it is not synchronized, the
Y D O X H L V E \ V \ Q F K U R Q L V P Z H P H D Q W K H F R U U H F W F R U U H O D W L R Q E H W Z H H Q W K H À \ Z K H H O V L J Q D O V V P R W D Q G W K H F D P V K D I W
signals (s cam); if everything is OK, synchronism is equal to 1, if a correlation is missing or a signal is lost, the sync goes to 0)
9 9 & R Q I 2 X W Determines the types of accessories activated at that moment, e.g. VVT, ECS, etc. (*)
0 D S Intake manifold pressure
3 % D U R Barometric pressure (GFA altitude pressure)
7 D L U Air temperature in intake manifold
, G O H 0 D S & R P S Automatic MAP compensation (the system signals an error for variations above 4.5%)