FIELD: mechanical engineering; internal combustion engines.
SUBSTANCE: proposed invention relates to device to control ignition system of internal combustion engine with accumulation of energy in inductance coil and to corresponding ignition control method. Proposed device and method of ignition control provide common "transparent" and universal approach to control of transmission of control actions related to cylinders into ignition data control unit used in engine computer control system. Said ignition control method is implemented in ignition control device employing accumulation of energy in inductance coil to control ignition system of internal combustion engine. According to proposed method, use is made of device for determining speed of rotation and device for determining angular position of crankshaft of internal combustion engine, computer, first and second memories, device for revealing overlapping, copier and ignition control data output device. Device for determining speed of rotation is designed for recording engine crankshaft speed at definite moment within sparking cycle in corresponding cylinder. Device for determining angular position is designed for recording actual angular position of engine crankshaft. Computer is designed for calculating ignition advance angle in designed moment within sparking cycle in corresponding cylinder corresponding to measured speed of rotation for the cylinder in which ignition of working mixture is to take place during working cycle and for following cylinders in compliance with duration of energy accumulation and angle of beginning of energy accumulation. First memory is made in form of device with random access and is designed for storing each calculated ignition advance angle for each cylinder. Device for revealing overlapping is designed for determining presence of overlap of sparking cycles in following cylinders with sparking cycle in the cylinder in which ignition of working mixture should take place during current working cycle and for revealing degree of overlapping. Second memory is made in form of backward stack and is designed for storing calculated values of ignition advance angles. Copier is designed for copy8ing corresponding value of ignition advance angle from first memory for second memory depending on degree of overlapping. Ignition control data output device is designed for putting out value of ignition advance angle for the cylinder in which ignition of working mixture should take place during current working cycle from second memory and for putting out corresponding value of duration of energy accumulation and corresponding value of angle of beginning of energy accumulation.
EFFECT: improved ignition control.
5 cl, 3 dwg
