摘要:
A control system for a continuously variable transmission, in which a responsiveness and a generation of an excessive force in a steady state are compatible. The control system makes a belt slippage prevention and a fuel economy improvement compatible by controlling a CVT with one of two parameter values: the first parameter value which is determined from an engine RPM and an accelerator opening, i.e., a torque information quick in the output timing but poor in the precision and which indicates the engine output torque; and the second parameter value which is determined from a fuel injection rate, i.e., a torque information excellent in the precision but slow in the output timing and which indicates the engine output torque.
摘要:
This invention relates to a fuel injection control system for an in-cylinder injection internal combustion engine. The system is provided with a fuel injection valve (1) arranged at a cylinder for injecting fuel into the cylinder, fuel feed pressure setting unit (121) for setting a fuel injection pressure of the fuel injection valve (1) at a low pressure in a specific operation state including a start-up of the internal combustion engine and for setting said fuel injection pressure at a high pressure in an operation state other than the specific operation state, and fuel injection controller (120) for setting an injection period of the fuel injection valve (1) as a period longer than a period of a single stroke in an operation cycle of the internal combustion engine in the specific operation state.
摘要:
In order to securely prevent knocks from occurring upon starting and the like, while enhancing the compression ratio in a spark ignition type in-cylinder injection internal combustion engine which includes a fuel injection valve for directly injecting fuel into a combustion chamber, fuel is injected during a compression stroke in a specific operation region under an intermediate to high load to perform stratified combustion. Further provided is a control unit for driving and controlling the fuel injection valve such that, in the stratified combustion, prior to the fuel injection during the compression stroke, fuel is injected from the fuel injection valve during an intake stroke by such an amount that fuel fails to self-ignite.
摘要:
A control apparatus for a cylinder-injection spark-ignition internal combustion engine switches control mode in accordance with an engine operating state between compression stroke injection mode control, in which fuel is injected during the compression stroke to achieve stratified combustion, and suction stroke injection mode control, in which fuel is injected during the suction stroke to achieve uniform mixture combustion. Where regular gasoline lower in octane number than premium gasoline is used, a target mean effective pressure (P.sub.e), which is set in accordance with throttle opening (.theta..sub.th), is subjected to octane number-based correction to thereby compensate for an engine output change at the mode switching, whereby a torque shock at the time of mode switching is prevented.
摘要:
In a control apparatus for an in-cylinder injection spark-ignition internal combustion engine, which has a fuel injection valve (4) for injecting a fuel directly into a combustion chamber (5), and in which the fuel is injected mainly in a compression stroke, thereby undergoing stratified-charge combustion, when the internal combustion engine is operated in a specified operation region, a target load value Pe set corresponding to accelerator opening information based at least on a driver's operation is corrected with detected environmental parameter values correlated with an intake air density, engine control parameter values Tend and Tig are set in accordance with the corrected target load value Pec, and stratified-charge combustion is executed in accordance with the set engine control parameter values. Thus, the stratified-charge combustion can be carried out steadily and securely even if environmental parameter values, such as the atmospheric pressure, intake air temperature, etc., that are correlated with the intake air density are substantially different from those for the standard atmosphere during engine operation in an upland or the like.
摘要:
When starting of an in-cylinder injection engine 1 is detected, a cylinder discrimination, which discriminates each cylinder, is effected. After each cylinder is discriminated, it is determined whether or not a water temperature detected by a water temperature sensor 16 exceeds a predetermined value. When the water temperature is below the predetermined value, fuel injection is started from the fuel injection valve 4 of a cylinder subjected to at least one compression stroke. Thereby, the cylinder discrimination is effected quickly, and it is made possible to raise the temperature within the combustion chamber 5, by means lapse of at least one compression stroke, at low water temperatures at which the starting ability tends to be deteriorated, and the starting ability of the in-cylinder injection engine 1 at low water temperatures is improved while shortening the starting time.
摘要:
A network system is composed of a plurality of information processing apparatuses connected to a ring network, and a program, which is to be executed by sharing the resources of the information processing apparatuses, is divided into predetermined units and stored in a plurality of information processing apparatuses, where an information processing apparatus determines whether all pieces of the divided program have been stored in the memory; when there is a program which has not been stored, transmits to another information processing apparatus a transmission request for the program; determines whether a program received by a communication section is the program transmitted from another information processing apparatus in response to the transmission request; stores the received program in the memory when it is transmitted in response to the transmission request; and executes the program stored in the memory when all pieces of the divided program have been stored.
摘要:
A wireless repeater on a communication line has a structure that includes a plurality of wireless communication media, and a band control unit that changes the first bandwidth of the communications line according to increase and decrease in the number of wireless communication media by an operation dividing the first bandwidth of the communications line into a plurality of second bandwidths and an operation multiplexing a plurality of second bandwidths adjusting to the first bandwidth, responding to the number of the wireless communication media.
摘要:
A wireless repeater on a communication line has a structure that includes a plurality of wireless communication media, and a band control unit that changes the first bandwidth of the communications line according to increase and decrease in the number of wireless communication media by an operation dividing the first bandwidth of the communications line into a plurality of second bandwidths and an operation multiplexing a plurality of second bandwidths adjusting to the first bandwidth, responding to the number of the wireless communication media.
摘要:
A control apparatus for an in-cylinder injection spark-ignition internal combustion engine, which includes a fuel injection valve for injecting a fuel directly into a combustion chamber and a spark plug for subjecting the fuel to spark ignition in the combustion chamber, and operates in an intake-stroke injection mode where the fuel is injected mainly in an intake stroke or a compression-stroke injection mode where the fuel is injected mainly in a compression stroke, comprises load correlation value calculation means for calculating a load correlation value of the internal combustion engine, ignition timing setting means for setting a reference ignition timing for the spark plug in accordance with the fuel injection mode and the load correlation value, and correction means for correcting the reference ignition timing in accordance with the operating state, the control apparatus further comprising correction limiting means for limiting the correction when the fuel injection mode is the compression-stroke injection mode.