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51 results about "Progressive change" patented technology

Vehicle engine control

An engine control unit, and method of use, uses a power curve or algorithm to pro-actively adjust fuel flow rate to an engine, optionally in combination with a reactive power curve or algorithm, thereby to adjust engine power, in anticipation of changes in loads being imposed on the engine, as well as to respond to engine speed changes. The ECU has a power curve or algorithm stored in memory which responds to certain predetermined operating conditions other than sensed engine speed, by providing a sequence of pro-active change inputs, at predetermined rates of change, in rate of delivery of fuel to the engine combustion chambers, independent of engine speed change, thereby to produce pro-active incremental changes in power output of the engine. Such pro-active incremental power changes are effected in anticipation of changes in load demand on the engine, and correspond generally with expected incrementally progressive changes in load demand on the engine. In preferred embodiments, the power curve or algorithm includes a first upwardly sloping line representing small increment increases in engine power, a second step change increase in engine power, a third downwardly sloping line representing small incremental decreases in engine power, and a fourth relatively greater magnitude step change decrease in engine power. The pro-active change input signals can be combined with reactive change input signals to make respective combination change input signals which take into consideration a variety of operating parameters, including engine speed changes.
Owner:DEERE & CO

Raster image projection method, three-dimensional reconstruction method and three-dimensional reconstruction system

ActiveCN109341589AReduce the number of timesAvoid Alternate Projection SituationsUsing optical meansGratingPhase shifted
The invention discloses a raster image projection method, a three-dimensional reconstruction method and a three-dimensional reconstruction system. On the one hand, a grating stripe in each period of araster image has a phase shifting characteristic since the raster image projection method can continuously update a fringe distribution function for forming the grating stripe, thereby facilitating the progressive changes of the grating stripe according to the projection light intensity, and facilitating to create high quality projections. On the other hand, the problems of blurring, dirt and diffuse reflection on a surface of an object can be effectively overcome by adopting the raster image projection since the generated raster image retains the advantages of the original phase shifting method, and the raster image projection method is more adaptable to scenes such as the reflection. In addition, the three-dimensional reconstruction system can obtain a clear surface contour of the object since the three-dimensional reconstruction method utilizes the raster image projection technology, and is advantageous for decomposing a projection coordinate of each pixel point, thereby obtainingthe high-precision three-dimensional reconstruction effect.
Owner:SHENZHEN HUAHAN WEIYE TECH

Vehicle engine control

An engine control unit, and method of use, uses a power curve or algorithm to pro-actively adjust fuel flow rate to an engine, optionally in combination with a reactive power curve or algorithm, thereby to adjust engine power, in anticipation of changes in loads being imposed on the engine, as well as to respond to engine speed changes. The ECU has a power curve or algorithm stored in memory which responds to certain predetermined operating conditions other than sensed engine speed, by providing a sequence of pro-active change inputs, at predetermined rates of change, in rate of delivery of fuel to the engine combustion chambers, independent of engine speed change, thereby to produce pro-active incremental changes in power output of the engine. Such pro-active incremental power changes are effected in anticipation of changes in load demand on the engine, and correspond generally with expected incrementally progressive changes in load demand on the engine. In preferred embodiments, the power curve or algorithm includes a first upwardly sloping line representing small increment increases in engine power, a second step change increase in engine power, a third downwardly sloping line representing small incremental decreases in engine power, and a fourth relatively greater magnitude step change decrease in engine power. The pro-active change input signals can be combined with reactive change input signals to make respective combination change input signals which take into consideration a variety of operating parameters, including engine speed changes.
Owner:DEERE & CO

Method for intelligently regulating screen display effect according to user preference

The invention discloses a method for intelligently regulating a screen display effect according to user preference. The method comprises steps of setting an ambient brightness grade standard and a screen usage effect configuration unit to guarantee that a standard configuration and a display effect parameter configuration of the ambient brightness conform to a user's habit, when ambient brightness is detected to be changed, performing comparison matching on detected ambient brightness and N brightness level references configured by the user to determine what level that current brightness has achieved and call corresponding parameters in an ambient brightness level standard and a usage effect configuration unit, comparing the current display effect parameter with expected effect parameters after ambient brightness detection and matching to determine an adjustment step length of each parameter, respectively and progressively changing the effect parameters according to a fixed cycle and comparing the effect parameters with the expected parameters until achieving an expected value. The whole process of the method is a progressive changing process and does not cause abrupt change, and meanwhile, the method fully considers an effect on a display effect which is caused by parameters like color saturation, etc.
Owner:FAURECIA CLARION ELECTRONICS (XIAMEN) CO LTD

LED multi-quantum-well structure device and grow method

The invention proves an LED multi-quantum-well structure device and a grow method. The device includes: an LED multi-quantum-well structure with an adjustable energy band, wherein the LED multi-quantum-well structure includes, from bottom to top, a barrier layer, a first potential-well layer with progressively decreasing indium component and a second potential-well layer with progressively increasing indium component, which grow alternatively in order. The structure changes the shape of the energy band reasonably and effectively through adjustment of the indium component in the potential wells. Two composite centers are formed at the two ends of a quantum-well active region and electron and cavitation wave function superposition areas are increased in the active region so that radiation composite efficiency is improved and thus light-emitting efficiency of an LED is improved. Moreover, progressive change of the In component can improve significantly work performance such as wavelength stability of the LED and the like. Therefore, the multi-quantum-well structure device is applicable to an InGaN-based blue-light and green-light LED and capable of improving inner quantum-well efficiency of an active region of the blue-light and green-light LED and thus improving the light-emitting efficiency of the LED.
Owner:EPITOP PHOTOELECTRIC TECH

Preparation method of all-gradient high-nickel ternary precursor and all-gradient high-nickel ternary cathode material

The invention discloses a preparation method of an all-gradient high-nickel ternary precursor and an all-gradient high-nickel ternary cathode material. The preparation method comprises the following steps: preparing a mixed solution A, a mixed solution B and a mixed solution C; performing parallel flow of the mixed solution A, an alkali solution and a complexing agent and pumping into a reaction kettle; continuously pumping the mixed solution B into the mixed solution A at the velocity of V1 after reaction time T1; continuously pumping the mixed solution C into the mixed solution B at the velocity of V2 after reaction time T2, thus realizing continuous progressive change of feeding materials and components of nickel salt, cobalt salt and manganese salt to obtain the all-gradient high-nickel ternary precursor; mixing a lithium source compound and the all-gradient high-nickel ternary precursor according to the molar rate to obtain a mixture; sintering the obtained mixture under an oxygenatmosphere; performing after-treatment after sintering to obtain the all-gradient high-nickel ternary cathode material. The preparation method disclosed by the invention is high in operability, easyto control, and can be used for industrial production; moreover, the obtained product has high content and is good in cycling stability.
Owner:湖南桑瑞新材料有限公司

Quadratic parameter spline curve prediction method and system based on accumulative chord length

The embodiments of the invention disclose a quadratic parameter spline curve prediction method and a system based on accumulative chord length, wherein the method comprises: performing sample point acquisition and pretreatment to the discrete data; determining the characteristic peaks of a prediction curve model; establishing parameter segmentation to the obtained n characteristic peaks; obtaining the intermediate parameters of the half-nodes and prediction curve model; through the characteristic peaks and the half-nodes, establishing m continuous function groups for the predication curve model; structuring and calculating the boundary conditions of the prediction curve model as the parameters of solving the m continuous function groups; solving the m continuous function groups to obtain the prediction curve model and obtaining the curve image; and predicting the prediction curve according to the prediction curve model to obtain a prediction result. According to the embodiments of the invention, the method and the system overcome the defects that the traditional prediction curve only roughly expresses the validity and accurate measurement is impossible and that the validity difference between the progressive changing process and the same-level discrete value cannot be clearly reflected.
Owner:GUILIN UNIV OF ELECTRONIC TECH

Building fireproof and heat insulating hollow plate

The invention provides a building fireproof and heat insulating hollow plate. An outer face plate and an inner face plate are parallel up and down; a cement tank is arranged on the inner face plate and connected with the inner side of the outer face plate; a heat dissipation device is connected with the cement tank and sequentially penetrates through a supporting face, a fireproof layer and the outer face plate; the heat dissipation device comprises a filling layer stacked and piled through heat dissipation mediums and further comprises a heat conducting plate connected with the cement tank and the filling layer; as for the filling layer in the direction from the cement tank to the outer face plate, the stacking density is sequentially and progressively increased, and the cross cutting area is sequentially and progressively decreased; and the progressive change range of the stacking density is 0.5-2.8 g/cm<3>, and the progressive change range of the cross cutting area is 4-50 cm <2>. According to the building fireproof and heat insulating hollow plate, heat in the hollow late can be discharged and dissipated in time when a fire occurs, the building fireproof and heat insulating hollow plate is not burned in the fire and can be recycled for many times, and the building fireproof and heat insulating hollow plate has the good fireproof, heat insulating, sound insulating functionsand is an excellent building material.
Owner:安徽清启系统集成有限公司
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