Presentation on theme: "Training at profigas, kiev 2010-09-15,16 LANDIRENZO Alternative Fuel Systems."— Presentation transcript:
Training at profigas, kiev ,16 LANDIRENZO Alternative Fuel Systems
Landi Systems Overview Landi designs and produces “ready to go” LPG / CNG systems covering –OEM and aftermarket installation –Any type of alternative fuel from LPG to CNG and CNG hydrogen mixture Landi focuses on optimising the installation process, engine endurance, vehicle performance and exhaust emissions CNG/LPG systems mainly consist of the following components: – Pressure reducers and vaporizer (only LPG) – Valves / electrical valves – Injectors – Electronic control units – Switches – Air / fuel mixers Landi does not produce the tank Landi gas fuel systems are installed “on top” of the existing petrol fuel system, allowing the vehicle to be operated by both fuels
Multipoint Injection SystemCarburetor VehiclesMixer Based System (1) Omegas IG1 or LI02 pressure reducer OMEGAS ECU OMEGAS Switch GI Injector Rail (1) Mixer based systems have a Lambda control unit if a catalyst is present V05, LC01, LCS/2 SE81 or EC04 pressure reducer V05, LC01, LCS/2 ECU's V05, LC01, LCS/2 Switches Stepper Motor Actuator Air / Fuel Mixers 094 or Renzomatic SE81 or Renzomatic pressure reducer 094 or 100 family switches Mixers Petrol Solenoid Valve Landi LPG Systems
NG2 PRESSURE REGULATOR Two stage aluminium modular regulator External HP shut-off valve Filter integrated in shut-off valve Service Pressure:15 260 bar Nominal Output Pressure:2 bar gauge (Normal) 2.5 bar rel. (Turbo) Other set pressure available for specific appli. Temperature Range:-40° 120° C Solenoid Valve Supply:6 16 Volt Input Filter:50 m Flow Rate: Max:40 Kg/h Weight:2100 g. Homologation: ECE/ONU -40°C min. NG2-2 – CNG Pressure regulator NG2-2 – CNG Pressure regulator
NG1 PRESSURE REGULATOR Single stage aluminum modular regulator External HP shut-off valve Filter integrated in shut-off valve Service Pressure:15 260 bar Nominal Output Pressure:1.95 bar ± 8.5% Other set pressure available for specific applic. Temperature Range:-40° 120° C Solenoid Valve Supply:6 16 Volt Input Filter:50 m Flow Rate: Max:40 Kg/h Weight:1200 g. Homologation: ECE/ONU -40°C min. NG1 - CNG Pressure regulator NG1 - CNG Pressure regulator
Current management: 4 / 1 “Peak and hold” Supply Voltage: 6 to 16 volts Temperature Range: -40°C to +120°C Nominal Pressure: 0.8 to 3 bar Aperture 2 ms Dimensions: Ø 32 x h 73 mm Weight: 120 g Homologation:ECE R -40°C min. Available in 3 different sizes to cover all the power range of the engines on the market MED RGBI Gas Injector
Rail with 2 Injectors with and without P/T sensor Rail with 3 Injectors with and without P/T sensor Rail with 4 Injectors with and without P/T sensor Injector rails package 3 Cylinders engine (1x3 injector rail) 4 Cylinders engine (1x4 injector rail) 4 Cylinders engine boxer (2 x 2 injector rails) 5 Cylinders engine (1x2 injector+1x3 injectors rails) 6 Cylinders engine (2x3 injector rails) 8 Cylinder engine (2x4 injector rails) Injector sizes: Each rail is available in 3 different injector sizes Small(green cap)till 20 kW/cyl Medium(black cap)from 15 kW to 30 Kw/cyl Large(white cap)From 25 kw to 40 kW/cyl Injector Rails Available
The last generation car technological level represents a new challenge for the producer of LPG and CNG converting systems, due to emission levels, diagnostic devices required by the new laws, performance and driving desired by the costumers. These facts drove LANDIRENZO to project OMEGAS, the new LPG and CNG sequential multipoint “corrector” injection system with electro-injectors. The components of OMEGAS are designed by LANDIRENZO in order to be qualified like standard O.E.M. components, with the possibility to be tailored according to the specific requirements.
It’s a gaseous, phased, multi-point sequential injection system: Gaseous: the system injects gaseous fuels (like LPG or CNG) into the intake manifolds, the closest possible to the intake valves of the cylinders; Multi-point: The gas is injected very close to the intake port of each cylinder Phased: the injection feed each cylinder phased with the position of the piston position Sequential: the cylinders receive the gas one after the other, according to the engine cycle phase in which they are. System is suitable for: Full group injection system Semi sequential injection system Sequential injection system
OMEGAS CONTROL SYSTEM The control system is slave type ECU. This means that the petrol ECU remains fully operational and calculates the petrol injectors injection timing according to the signals given by the car sensors (lambda sensor signal being the most important one); Using some more sensor signals and the relative appropriate algorithms, Omegas processes these petrol ECU outputs as inputs, to obtain the correct gas injectors injection timing from petrol ones; Omegas, then, takes care to physically avoid petrol injection uncoupling the petrol injectors.
Operating strategy, petrol injectors uncoupling Uncoupling relay Uncoupling impedance Petrol ECU Omegas ECU Power supplies of injectors (+15 V) Driving signals of injectors Petrol injectors
Single point injection system Multipoint injection car without oxygen sensor (system would work but it’s very difficult to calibrate so it’s better avoid unless necessary) Direct injection engines like VW group FSI and TFSI engine Alfa JTS engines Mitsubishi GDI BMW new IS engines Omegas System is not suitable for these engines It’s possible retrofit some of these engine by the new “Omegas Direct System”
Kit/Minikit main components Pressure regulator/LPG converter (different one depending on the kit) Filter (Fly-One or FT375 depending on the kit) Injectors Rail (MED RGI injectors) with integrated T/P sensor Electronic Control Unit Omegas Main Wiring Switch Standard intake nozzles Available but not included in the kit External coolant temperature sensor Petrol injector uncoupling harness available in different type
The pressure sensor inform the ECU gas on the absolute pressure (Bosch sensor) in the injector rail. It’s integrated in the injector rail and doesn’t need any further adjustment PRESSURE / TEMPERATURE GAS SENSOR
The nozzle is threaded to the suction manifold and connected to the injectors by means of a suitable tube. NOZZLE M6X1
OPTIONAL NOZZLES Internal Nozzle M8X1
The coolant temperature signal is used to have a precise information about the engine temperature during the warm up and the normally run to gas. Is possible: read to original temperature sensor (in the software is present a procedure that allow to parameterize the original sensor of the car). read the temperature with an additional T sensor not included in a KIT. In case of temperature sensor not connected the engine will activate a recovery procedure which manage the switch on the gas temperature but is much safer, especially in cold climate, have the correct value of the coolant temperature Original Water Sensor Wire to connect to gas harness Coolant temperature signal
TEMPERATURE SENSOR (optional) The water temperature sensor is fitted on the water pipe just before the gas pressure regulator. The signal transmitted to the GAS ECU is necessary for the correct work of the system.
MAP SIGNAL The MAP signal is used to have a precise information about the manifold pressure. This signal is directly read to original MAP sensor of the car. In the software is present a procedure that allow to parameterize the sensor. If isn’t present the MAP sensor in the software is present other strategy to manage the return to gas when the gas tank is empty. Original MAP Sensor Wire to connect to gas harness +5V GND MAP SIGNAL AIR TEMPERATURE
KF184lr OMEGAS STANDARD HARNESS 3-4 CYLINDER MED
OMEGAS STANDARD HARNESS CYLINDER MED KF188lr
Petrol Injectors uncoupling harness
ECU Two version of ECU are available 3-4 Cylinder ECU Cylinder ECU It’s possible by set an cylinder ECU to make it working in 3-4 cylinder engine but it’s needed to use the cylinder harness
SWITCHER The new switch has the same function of the previous model. A new “buzzer” is inserted to inform the driver of the change over to petrol when the gas is finishing.
How to access to ECU’s internal memory Diagnosis stored in internal memory are visible (and resettable) with a dedicated LANDIRENZO tool (Omegas Tool) connected on the RS232 serial port