摘要:
A method of and an apparatus for controlling supercharge pressure for a turbocharger, which perform the functions of detecting an acceleration condition from operating conditions of the engine, calculating and performing a feedback control using a capacity changing means when actual supercharge pressure reaches a first predetermined value after the acceleration condition has been determined, starting a correction of a control amount for the capacity changing means in the acceleration condition, and for increasing a first target value of the supercharge pressure when a predetermined time passes after the actual supercharge pressure reaches a second target value.
摘要:
A method and system for controlling an amount of fuel supplied into an internal combustion engine. The system comprises: (a) first means for detecting and signalling an air quantity sucked into an intake passage of the engine; (b) second means for storing at least one first dynamic characteristic model expressing a transfer function defined between a detected air quantity value and intake air quantity actually sucked into each engine cylinder; (c) third means for calculating an actual intake air quantity to be sucked into each engine cylinder from the detected value of said first means and the first dynamic characteristic model stored within said second means; (d) fourth means for storing at least one second dynamic characteristic model expressing a transfer function defined between a signal corresponding to an amount of fuel required for the engine and actual amount of fuel sucked into each engine cylinder; (e) fifth means for calculating the amount of fuel required for the engine using an intake air quantity value calculated by the third means; (f) sixth means for calculating an amount of fuel to be supplied to the engine from the required amount of fuel calculated by the fifth means and from the second dynamic characteristic model stored within the fifth means; and (g) seventh means for actually supplying the amount of fuel in response to the signal based on the calculation result of sixth means.
摘要:
A control system for an automotive vehicle controls driving torque delivery for driven wheels. The control system basically controls an output torque of an automotive internal combustion engine toward a target engine output torque which is derived on the basis of an accelerator operational magnitude. The target engine output torque can be modified according to associated conditions, such as road friction level, a characteristic of a power train including a torque converter and a power transmission. The control system also performs selection of engine output control and transmission shift control depending upon vehicle driving condition.
摘要:
A system and method for controlling an ignition timing for an internal combustion engine, in which a basic ignition timing angle determined according to an engine operating condition is corrected according to an MBT (Minimum Spark Angle for Best Torque) correction quantity within a range of a predetermined limited value set for the MBT correction quantity, and the ignition timing angle is corrected within the predetermined limit range on the basis of one of knock correction quantity (calculated for suppressing the knock correction quantity to fall in a predetermined level) and the MBT correction quantity (calculated for correcting the instantaneous ignition timing angle so that a maximum internal cylinder pressure coincides with a target angular position at which a magnitude of engine output torque becomes maximum) which is placed at a more retardation angle side.
摘要:
A system and method for controlling an ignition timing for an internal combustion engine, in which one of knock suppression correction quantity and MBT (Maximum Spark Advance for Best Torque) correction quantity whose value is placed at a more retardation angle side is selected as the ignition timing correction quantity, the ignition timing angle correction quantity is compared with the knock suppression quantity when a magnitude of the engine knocking exceeds a predetermined level. When the knock suppression correction quantity is placed at a more advance angle side than the ignition timing correction quantity, a basic ignition timing angle determined on the basis of an engine operating condition is corrected on the basis of a value of the ignition timing correction quantity corrected toward the retardation angle side by a predetermined angle. When the knock suppression correction quantity is not placed at the more advance angle side, the basic ignition timing angle is corrected on the basis of the knock suppression correction quantity.
摘要:
A fuel supply control system is disclosed having a means for determining an engine load condition based on the revolution speed of a compressor shaft and a means for determining a target speed of a turbine output shaft. The latter means increases the target speed in a relatively low engine load condition to increase an inertia moment applied to the turbine output shaft and thereby to maintain the output shaft revolution speed within a given range, even when the load applied to the engine is rapidly increased.
摘要:
The duty cycle of a driving pulse signal applied to an electromagnetic valve which controls the recirculation rate of the exhaust gas of an internal combustion engine, is compensated for by a compensation signal produced in accordance with the difference of the voltage of the power supply and a predetermined voltage so that the actual working period of the electromagnetic valve is adjusted optimally irrespectively of the deviation of the voltage of the power supply from the predetermined voltage, thereby providing the most suitable recirculation rate of the exhaust gas.
摘要:
A gas turbine control system with a control signal generator for a two-shaft gas turbine having a compressor turbine and a power turbine. The gas turbine control system comprises, in combination, a control signal generator for outputting signals for giving optimum fuel supply rates to the fuel control valve in accordance with gas generator shaft speeds of the compressor turbine until the power turbine speed approaches a target power turbine speed, so that the turbine system can be controlled under direct control conditions, a comparator for outputting a signal to switch the system from direct control to feedback control when the signal level under the feedback control becomes smaller than that under the direct control, and a selector for selecting one of the above-mentioned two control conditions, in addition to a conventional feedback control system having a power turbine differential speed detector and an calculation unit.
摘要:
A fuel control system having a fuel control valve provided in a main fuel path for controlling the amount of fuel for an injection valve, an ON-OFF valve provided in a sub-fuel path and bypassing the main fuel path for controlling the passage of the fuel from the fuel tank, and holding means for maintaining the fuel amount passing through the main fuel path nearly constant. With this construction, when an drastic or abrupt increase of load occurs, the ON-OFF valve is opened and at the same time the amount of fuel passing through the fuel control valve is maintained nearly constant by the holding means, thus preventing the engine condition from being entered into a surging limit.
摘要:
A system and method for recognizing a stagnation state for a vehicle are disclosed in which a running characteristic pattern of the vehicle is derived on the basis of running parameters such as the vehicle speed, acceleration of the vehicle, and deceleration of the vehicle, and whether the running characteristic pattern substantially coincides with a running characteristic pattern peculiar to a state in which the vehicle runs in the stagnation state.