摘要:
The device for controlling an internal combustion engine of a vehicle comprises a sensor system with a rotary emitter disk (10) mounted on a shaft of the engine facing a fixed sensor element (20). The periphery of the disk (10) is provided with a number of segments (11, 12) proportional to that of the engine cylinders. At least one of the segments (11, 12) comprises a permanent magnet (15). The signals generated in the detector element (20) by the permanent magnet (15) or segments (11, 12) are transmitted to a control circuit (21) for the ignition, injection etc. of the vehicle. This ensures precise allocation of the ignition pulses for a high-voltage distribution without a distributor, using a single emitting unit.
摘要:
An engine unit having its early-start ability further improved with suppression of deterioration in mountability to vehicle. The engine unit includes a four-stroke engine body, a starter motor, a plurality of detection object parts, a rotor position detection device having a detection-purpose winding, and an inverter having a plurality of switching parts. A control device: shifts from a start control mode for performing on/off-operation of the plurality of switching parts at predefined timings to start forward rotation of the crankshaft, to an acceleration control mode for performing on/off-operation of the plurality of switching parts at timings based on an electrical signal flowing in the detection-purpose winding to accelerate forward rotation of the crankshaft; and in time periods during which the start control mode and the acceleration control mode are performed, causes rotation of the rotor to follow a variation in a current flowing in the multi-phase stator windings by controlling on/off-operation of the plurality of switching parts based on both a timing of a variation corresponding to the forward end of the detection object part and a timing of a variation corresponding to the rearward end of the detection object part among variations in the electrical signal flowing in the detection-purpose winding.
摘要:
An engine ignition control device comprising: a start-up ignition controller having a function for preventing the occurrence of kickback by either delaying an ignition position of an engine or stopping ignition; start-up rotation angle detection means for detecting a rotation angle of a crankshaft of the engine after initiation of a start-up operation of the engine; and switching means for switching control specifics of the start-up ignition controller in accordance with the detected start-up rotation angle so that when the detected start-up rotation angle is less than a set angle, there is created a kickback-preventive effect within a range at which engine startability is not compromised, and when the detected start-up rotation angle is equal to or greater than the set angle, there is created a kickback-preventive effect that is greater than the kickback-preventive effect for when the start-up rotation angle is equal to or less than the set angle.
摘要:
An ignition control apparatus (100) according to one embodiment of the present invention is an ignition control apparatus which generates, in an ignition coil, a voltage to be supplied to a spark plug that is provided in an internal combustion engine on the basis of a pulse signal induced in the ignition coil of the internal combustion engine, wherein the ignition control apparatus comprises at least a switch element (160) for passing current through and discharge the ignition coil, and a controlling unit (140) that acquires the timing for discharge the ignition coil in response to a first pulse of the pulse signal, and controls the switch element so that a current flows through the ignition coil in response to a second pulse that follows the first pulse and the ignition coil is opened on the basis of the discharge timing acquired in response to the first pulse.
摘要:
Invention relates to a method of controlling an angle of start of ignition in an internal combustion piston engine, wherein following steps are practised during the operation of the engine: a) a reference signal (R) of a predetermined angular position of the crankshaft is acquired and a first time stamp (t R ) is assigned to the acquired reference signal, b) a signal of timed start of ignition is generated, and a second time stamp (t i ) is assigned to the signal of the start of the ignition, c) a signal indicating a speed (ω) of the engine is acquired, d) time elapsed (Δt) between the first and the second time stamp is determined, e) a check angle value (α) of start of ignition is acquired such that a product of the signal indicating the speed (ω) of the engine and the time elapsed (Δt) between the first and the second time stamps is added to the known angular position of the reference signal (R), f) an ignition window (w) is determined by having the check angle value as a base value of the window (w) and providing a pre-set advancing margin and retarding margin, and by determining a lower value of the window by subtracting the advancing margin from the base value and a lower value of the window by adding the pre-set retarding margin to the base value of the window, g) checking whether the timed start of ignition instruction generated by the control unit is within the ignition window (w), and h) providing a correction signal for use in generating the timed start of ignition signal.