6 Direct injection technology - petrol injectors controlInjectors used in direct injection systems are approximately 3 times faster than those in traditional systems.Opening time on idle - ok. 1msMaximum opening time - ok. 7 msABCInjection fazeVoltageCurrentDurationA: High Peak60V12A max.0,2-0,4 msB: Peak12Vok. 5Aok. 0,5 msC: Hold12V - PWMok. 3A0 – 7 ms
7 Gas supply system - assembling Components of the system : electronic control unit and switch, sensors, wiring harness, Injetors HANAVaporizer KME Silver/ Gold, Gurtner Silver , Gurtner BlackFilterthe bag assembly (similar as per conventional systems)
8 Gas supply system - nozzles in the manifold Installation of nozzles in the intake manifold engine with direct injection gasoline requires more attention than the standard engine.
12 Gas supply scheme- petrol injectors controlt1t1 –petrol injector opening time idling while running on petrolt2 + t3 - petrol injector opening time idling while working on the gas, where :t2 – dose of petrolt3 – time in which the emulator is enabled and petrol injector is closedt2t3
13 Gas injection is usually accelerated with respect to petrol injection Gas supply scheme- gas injection controlGas injection is usually accelerated with respect to petrol injectionThe Zenit PRO DIRECT allows continuous adjustment of injection timing depending on engine RPM and load
14 Gas supply scheme - software Two versions of the software: 1. Engineering version Installers version
15 Gas supply scheme - use of, apps ECU PETROL TYPE AND MODEL ENGINE CODE YEAR OFPRODUCT.TYPE AND MODELECU PETROLFIRMWAREHARDWAREFUEL
17 Gas supply scheme - use off, apps Along with purchasing the installation customer receives:front-kit contains basic components such as: electronic control unit and switch, sensors, vaporizer, injectors, filter, the bag assembly (similar as per conventional systems);ECU configuration file dedicated to a specific engine model;manuals dedicated to a specific engine model ( kit assembling, the source of electrical signals, installation of nozzles in the manifold).
18 Comparison of traditional and a system for direct injection Zenit PRO DIRECTZenit PRO / PRO OBDApplicationEngine 4 cyl., LPG, VAG TFSI/TSI, GDIEngine 3 – 8 cyl., LPG – CNG, with multipoint injection systemGasoline consumption10 – 15%2 – 5 %Petrol pressure20 – 200 bar4 – 6 barResistance petrol injectors1,9 – 2,5 Ω10 – 15 ΩPetrol injection time0 – 7 ms (10 ms after chiptuning)0 – 25 msPetrol injection time on idle1 ms3 msAdditional electrical connectionsFuel pressure sensor, OBDOBDConfiguration of gasDedicatedUniversalCompensationsReducer temperature compensationGas temperature compensationSupply voltage compensationGas pressure compensationPetrol pressure compensationOBD systemAcceleration compensationOBD and Adaptive Map
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