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100 results about "Early start" patented technology

Low emission power plant and method of making same

A low emission power generating apparatus which comprises a modified two-stroke diesel engine component and a modified turbocharger component which has a relatively low aspect ratio. The diesel engine component is a modification of a conventional two-stroke diesel engine design and includes an exhaust valve cam of unique design that has a cam profile which results in a later than-normal exhaust valve opening and an earlier-than-normal valve closing so that the time during which the exhaust valve remains open is shorter than normal, thereby causing a substantially greater volume of residual gases to remain in the combustion chamber following the scavenge stroke. This increase in the volume of the residual exhaust gases within the chamber leads to an increase in compression temperature and effectively increases the compression ratio and consequently the compression pressure. Because of the heat absorption capacity of these residual exhaust gases, the exhaust gases remaining in the chamber following the scavenge stroke tend to absorb combustion heat and thereby effectively reduce the peak combustion temperature. This reduction in peak combustion temperature advantageously results in the lower than normal formation of nitrogen oxide (NOx) and, therefore, allows advancement of the injection timing, while still maintaining the NOx emissions coming from the engine lower than those legislatively mandated. Advantageously, the advance in injection timing, which increases NOx emissions, by definition has the effect of also reducing particulate matter emissions. Thus, by increasing the volume of residual exhaust gases within the cylinder, substantial particulate matter emission reductions can be achieved, while at the same time maintaining NOx emissions well below mandated limits. The modified turbocharger component provides an additional charge of oxygen-rich air into the combustion chamber which effectively increases the compression pressure, which, in turn, leads to an earlier start of combustion because of the combustible mixture reaching its auto-ignition temperature at an earlier point in the cycle. This phenomenon leads to more thorough combustion of the fuel and also generally leads to higher exhaust temperatures. Higher exhaust temperatures, in turn, lead to a greater oxidation rate of the soluble organic fraction thus lowering the level of emission from the engine of undesirable particulate matter.
Owner:CLEAN CAM TECH SYST

Wide-area fault recording system and synchronization method

The invention discloses a wide-area fault recording system and a synchronization method. The method includes the steps that fault recording devices are arranged on all geographically-dispersed transformer substations respectively; all the fault recording devices are connected to a communication network, and the different devices in same working groups can be communicated through the network; after self-starting criterions of all the fault recording devices are started, the fault recording devices send starting signals (network starting signals) to the other devices in the same working groups, and absolute time marks of starting moments are carried in the sent signals; delta T time begins to be waited, the earliest starting moments in all the starting signals (the starting signals include the self-starting signals and the network starting signals) in the delta T time are compared and selected, and wave files are started to be stored and recorded according to the preset recording regulation from the moments. The requirement of the synchronization recording method for the real-time performance of the communication network is low, wide-area synchronization recording can be achieved through an existing non-real-time communication network, the investment of special real-time channels is saved, and the large practical value is achieved.
Owner:NR ELECTRIC CO LTD +1

Low-power rapid-boost FLASH charge pump control circuit

The invention relates to a low-power rapid-boost FLASH charge pump control circuit. The low-power rapid-boost FLASH charge pump control circuit comprises a programming erase control circuit, a voltage regulating circuit, a voltage reducing circuit, a clock generating circuit, a four phase clock circuit, a charge pump and a voltage stabilizing circuit. The voltage reducing circuit is divided into two paths, one path is used for quick start and works when the output voltage of the charge pump is low, the other path is used for the voltage trimming of the charge pump and works when the output voltage of the charge pump approaches a target value, and the voltage reducing circuit reduces the voltage through a reverser biased diode and a forward biased diode in order to reduce power consumption; the clock generating circuit is used for generating a clock required by the work of the charge pump, the frequency of the clock is adjustable, and in the early start stage, the clock runs in a fastest frequency within an adjustable range, and the voltage of the charge pump fast rises; and when the voltage of the charge pump approaches the target value, the clock frequency is trimmed according to the feedback voltage of the charge pump in order o maintain the voltage of the charge pump in a reasonable range. The control circuit reduces the power consumption of a Flash memory and increases the programming erasing speed of the Flash memory.
Owner:BEIJING MXTRONICS CORP +1

Method for restoring a plurality of auxiliary inverters of train in normal starting sequence

A method for restoring a plurality of auxiliary inverters of a train in a normal starting sequence belongs to the field of detecting the inverter starting sequence fault of a formatted train which comprises a plurality of inverters. According to the method of the invention, reasons for failed logic bit starting fault of the auxiliary inverters are sufficiently considered, and furthermore a more appropriate resetting condition is designed and determined in a more targeted manner. According to the method, early-period preposing and later-period remedy can be performed on normal auxiliary inverters which are cut and isolated by a TCMS in a starting sequence because of a logical misjudgement; and early starting failure logical bit resetting and later starting failure logical bit resetting are performed, thereby effectively preventing the logical misjudgement, furthermore preventing unnecessary middle-voltage unloading, and reliably ensuring high smoothness in successive starting cycle of the auxiliary inverters. Furthermore the method has functions of preventing train equipment idling and substantially improving safety and reliability in smooth operation of an intermediate-voltage power supply system in the train as well as sitting comfort of passengers.
Owner:CRRC CHANGCHUN RAILWAY VEHICLES CO LTD

Motor vehicle and control method of motor vehicle

InactiveUS20060218896A1Reduces potential shockPrevents potential troubleHybrid vehiclesElectrical controlCombustionMotor vehicle part
In a hybrid vehicle of the invention, in the event of specification that an exhaust treatment catalyst is in a preset adequate state at step S112, combustion control of an engine starts after a decrease of an intake pipe pressure P to a preset reference negative pressure Pref and reduction of an intake air flow into a cylinder of the engine by engine motoring. In the event of specification that the exhaust treatment catalyst is not in the preset adequate state but in an inadequate state at step S112, on the other hand, the combustion control of the engine immediately starts, prior to the decrease of the intake pipe pressure P to the preset reference negative pressure Pref. The hybrid vehicle of the invention allows an early start of the combustion control in a lower catalyst temperature condition that lowers the catalytic conversion power of the exhaust treatment catalyst and in a higher catalyst temperature condition that causes accelerated deterioration of the exhaust treatment catalyst in exposure to the air. The early start of the combustion control effectively reduces the potential shocks on a start of the engine, while preventing the potential troubles, for example, the worsened emission and the accelerated deterioration of the exhaust treatment catalyst, arising in the course of engine motoring due to the inadequate state of the exhaust treatment catalyst.
Owner:TOYOTA JIDOSHA KK

Modeling approach for shipbuilding enterprise subsection workshop spatial scheduling model based on cellular machine

The invention discloses a modeling approach for a shipbuilding enterprise subsection workshop spatial scheduling model based on a cellular machine. The modeling approach comprises the following steps of: 1) layer model design and cellular status description: carrying out layer division to a spatial scheduling subsection manufacture field by taking the earliest start time of each subsection as a division point on the time dimension, and taking each layer as one cell to represent one two-dimensional field space; 2) setting a time rule under the initial state to a first come first service rule, regularly selecting a rectangular rule on a subsection shape, selecting an edge strategy to serve as the initial rule of a subsection placement strategy, setting a boundary condition as a constant value type, and representing that one feasible solution can be obtained when all subsection decision variables (DV) are evaluated as 0, i.e. the subsection arrangement is successful; 3) evolution rule setting; and 4) obtaining the multi-target function of the subsection workshop spatial scheduling model. The invention provides the modeling approach for the shipbuilding enterprise subsection workshop spatial scheduling model based on the cellular machine, which combines the convenience and the reliability.
Owner:嘉兴笼列电子商务有限公司

Air conditioner control method and device as well as computer readable storage media

The invention discloses an air conditioner control method. The air conditioner control method comprises the following steps that whether a time interval between a current moment and a preset on-duty moment is less than or equal to a maximum early start time is determined; if the time interval is less than or equal to the maximum early start time, a preliminary demand load corresponding to a central air conditioner is acquired and a startup combined load corresponding to the central air conditioner is acquired; and the starting time of a to-be-started main machine is determined based on the startup combined load and the preliminary demand load; the invention further discloses an air conditioner control device and a computer readable storage media. According to the air conditioner control method and device as well as the computer readable storage media, the starting moment of the main machine in the central air conditioner can be determined according to the preliminary demand load, and then the central air conditioner can be started in advance advantageously in later stage according to the starting moment, so that the comfort degree of a room corresponding to the on-duty moment is guaranteed while energy consumption is reduced, and the pre-cooling or preheating accuracy of the central air conditioner is improved.
Owner:SHANGHAI MEICON INTELLIGENT CONSTR CO LTD +1

Reducing agent supply apparatus, method for controlling the same, and exhaust gas purification apparatus

[Problem] To provide a reducing agent supply apparatus that can quickly melt urea aqueous solution solidified in a reducing agent injection valve to allow early start of the injection control of urea aqueous solution, a method for controlling the reducing agent supply apparatus, and an exhaust gas purification apparatus.[Means for Resolution] A reducing agent supply apparatus, including: a storage tank for storing liquid reducing agent; a pump for pumping the reducing agent; a reducing agent injection valve for injecting the reducing agent pumped by the pump in an exhaust pipe of an internal combustion engine; and a reducing agent passage connecting the pump to the reducing agent injection valve, wherein, when the internal combustion engine stops, a purge process of collecting the reducing agent in the reducing agent passage into the storage tank is performed, and wherein, on part of the reducing agent passage, a siphon function portion is provided for, even when, at the start of the internal combustion engine, the reducing agent injection valve is in injection failure due to solidification of the reducing agent in the reducing agent injection valve, causing some of the reducing agent to reach the reducing agent injection valve after the start of the pump to cause the solidified reducing agent to melt.
Owner:BOSCH CORP

Sub deadline acquisition optimization method based on reverse workflow scheduling

The invention discloses a sub deadline acquisition optimization method based on reverse workflow scheduling, which belongs to the field of grid or cloud computing. When a workflow with a deadline constraint is scheduled on a group of fixed resources, a task sub deadline is an important parameter, the sub deadline acquired in the present method sometimes can not ensure completion of remaining tasks, and the new method provided by the invention is used for acquiring a reasonable and usable sub deadline. In view of workflow scheduling, according to the provided RHEFT method, through a workflow reverse thinking, reverse weight solution and ranking are firstly carried out on tasks; one-by-one traverse resources of the tasks are extracted sequentially to acquire the earliest start time and the finish time of a reverse task; and the sub deadline and the latest start time are finally solved correspondingly. The process not only considers the lengths of remaining key paths but also considers influences of DAG parallelism, and thus, after resource mapping of each task under the sub deadline constraint, the rest tasks can still be ensured to have enough scheduling time. Through influences on the sub deadline by DAG parallelism changes, the sub deadline acquired by the method of the invention is verified to be more reasonable and effective.
Owner:BEIJING UNIV OF TECH

Reducing agent supply apparatus, method for controlling the same, and exhaust gas purification apparatus

[Problem] To provide a reducing agent supply apparatus that can quickly melt urea aqueous solution solidified in a reducing agent injection valve to allow early start of the injection control of urea aqueous solution, a method for controlling the reducing agent supply apparatus, and an exhaust gas purification apparatus.
[Means for Resolution] reducing agent supply apparatus, including: a storage tank for storing liquid reducing agent; a pump for pumping the reducing agent; a reducing agent injection valve for injecting the reducing agent pumped by the pump in an exhaust pipe of an internal combustion engine; and a reducing agent passage connecting the pump to the reducing agent injection valve, wherein, when the internal combustion engine stops, a purge process of collecting the reducing agent in the reducing agent passage into the storage tank is performed, and wherein, on part of the reducing agent passage, a siphon function portion is provided for, even when, at the start of the internal combustion engine, the reducing agent injection valve is in injection failure due to solidification of the reducing agent in the reducing agent injection valve, causing some of the reducing agent to reach the reducing agent injection valve after the start of the pump to cause the solidified reducing agent to melt.
Owner:BOSCH CORP
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