• TRANSPORT TECHNICS. INVESTIGATION OF ELEMENTS. RELIABILITY

    APPROACH OF CALCULATING THE AUTOMOTIVE GASOLINE INJECTOR ELECTROMAGNETIC PARAMETERS

    Trans Motauto World, Vol. 4 (2019), Issue 3, pg(s) 91-94

    The electromagnetic fuel injectors automotive are the gasoline injection systems main elements. The injectors perform the gasoline injection and its time of open condition, i.e injection duration determines the fuel quantity per working cycle [1]. The injectors are activated by solenoid and inject the gasoline in the engine manifold at the system pressure [2]. The gasoline injectors ensure precise fuel metering according to engine work state. The injectors are controlled by control signals, whose parameters are defined by the engine management system. The control devices are power transistors (drivers) in the electronic control unit (ECU). The injectors synchronizing and speed activating has a special significance and influence upon the increasing of the power and efficiency and the decreasing of the harmful emissions of the automotive engines. The synchronization of the electromagnetic gasoline injectors is connected by one hand of the injection according engine work order and by the other – with equal fuel injection duration and injection quantity. Meanwhile the injectors work at such conditions, which imposed constant compensation and adaptation activities by the ECU. This circumstance is connected with requirements of speed activating, which is measured by indicators, such as minimal electromagnetic activating force and minimal opening and closing time. This paper is considered the method of calculating the electromagnetic parameters of the automotive electromagnetic gasoline injectors for manifold gasoline injection.

  • GENERATING MANAGEMENT PROGRAM OF THE TEST BENCH SKAD-1 FOR COMPUTER CONTROL OF AUTOMOTIVE GASOLINE INJECTION ENGINE

    Trans Motauto World, Vol. 4 (2019), Issue 2, pg(s) 74-77

    The new requirements of modern automotives become more stringent corresponding to power, torque, fuel economy and ecology legislations [2]. The main factor in this area is the automotive engine fuel system, which is controlled by the electronic control unit (ECU). The electronic control of the Spark Ignition Engines (SI engines), as well as the Direct Ignition Engines (DI engines) is based on the certain sensors signals, program maps and management algorithms. The advanced automotive scientific research centres and automotive manufacturers design and develop a specialized laboratory, stationary and movable test benches and train complex for researching and testing of automotive sensors and actuators, automotive prototypes and series, and automotive units. The test benches for internal combustion engine (ICE) management are the equipment, which are used for ICE development, specification and testing. These test benches allow the engine to work at different work modes and states and ensured measurement of the engine physical work parameters. The design of the engine management test benches enable easy access to the ICE certain systems, units and details. This paper includes results of the generating a control program using the Flowcode 7.0 software of test bench SKAD-1 for computer management of automotive gasoline injection engine, with ability to programming input parameters and measuring the output results.