1204results about "Relative volume flow measurements" patented technology

In a motor vehicle, a fuel consumption measurement system comprising: measuring device for the vehicle's fuel consumption as first data; measuring device for second data for variables which may affect the fuel consumption, the second data including at least locations traveled by the vehicle, and wherein vehicle's location is measured in real time using a global positioning system or using info provided by a cellular wireless supplier; c. storage for storing samples of the first data with the second data; d. computing device for analyzing in real time the stored first and second data for reaching conclusions relating to ways for reducing the fuel consumption, wherein the conclusions include at least the cost of fuel used; e. display for presenting the conclusions in real time to a vehicle's driver.

A calculation unit (3) determines whether or not an operation which worsens fuel economy has been performed, and if it is determined that an operation which worsens fuel economy has been performed, the calculation unit (3) respectively calculates the actual amount of consumed fuel and an amount of fuel that would have been consumed had the operation that worsens fuel economy not been performed. The calculation unit (3) then calculates an amount of fuel consumed in excess due to the operation which worsens fuel economy by subtracting the amount of fuel that would have been consumed had the operation that worsens fuel economy not been performed from the actual amount of consumed fuel. A display (4) displays the calculated excess fuel consumption amount.

A hybrid vehicle battery information display device 1 includes a battery service life display unit 2 which estimates a degree of battery degradation with respect to a useful life of a battery 16 from data on vehicle travel and the like based on battery degradation data measured from a vehicle travel test 19, to display information on a battery service life; a travel fuel consumption display unit 3 which evaluates, from the vehicle travel test 19, a degradation degree of actual travel fuel consumption data due to the battery degradation for each drive pattern based on test travel fuel consumption data set for each drive pattern, to display information on a travel fuel consumption; and a display control unit 4 which controls the display of information on the battery service life.

The present invention provides a vehicle display device which can display fuel consumption information of a vehicle in a useful and optimum mode for a driver. A meter_EUC calculates an instantaneous fuel consumption of a vehicle based on a mileage and a fuel injection quantity within a set time, calculates an average fuel consumption of the vehicle based on respective cumulative values of the mileage and the fuel injection quantity repeatedly calculated for every set time, and displays the deviation of the instantaneous fuel consumption with respect to the average fuel consumption as fuel consumption information on a fuel consumption meter. The display on the fuel consumption meter is performed by swinging a pointer with respect to a neutral position. When the deviation takes a positive value, the pointer is swung in the pulse direction with a swinging width corresponding to the deviation quantity, while when the deviation takes a negative value, the pointer is swung in the minus direction with a swinging width corresponding to the deviation quantity.

The technology described herein provides a system and method for automatically increasing the remaining driving range of a vehicle when a low fuel or other condition is detected by altering the operating parameters of one or more vehicle systems to improve propulsion system efficiency and thereby lower fuel consumption. The vehicle range extending system is capable of altering the operating parameters of any vehicle system, including for example variable displacement settings, start-stop technology settings, and HVAC operation. The disclosed technology can also provide information to the driver, suggesting which system operating parameters should be altered to reduce the fuel consumption rate.

A method for fabricating a photomask for an integrated circuit. The method includes, for example, providing a substrate with at least one trench, providing a prepatterned surface at the bottom of the trench, and providing a multilayer coating over the substrate. As a result, the multilayer coating forms a reflection region on the surface of the substrate outside the trench and a non-reflection region in the trench. The invention additionally provides a corresponding photomask.

A system for diagnosing operation of a delta pressure sensor used with an internal combustion engine comprises an intake manifold and an exhaust manifold each operatively coupled to the engine, an EGR conduit fluidly coupled between the intake and exhaust manifolds, and a flow restriction mechanism disposed in-line with the EGR conduit, wherein the delta pressure sensor produces a delta pressure signal indicative of a pressure differential across the flow restriction mechanism. A control computer compares the delta pressure signal to a modeled delta pressure value modeled as a function of at least engine speed and one of engine load and engine output torque percentage, and diagnoses a fault state of the delta pressure sensor based on the comparison.

An arterial needle removes blood from the access to an extracorporeal circuit comprising a dialyzer and a venous needle returns the blood to the access site. Blood passes along one side of the membrane of the dialyzer and dialysis fluid along the other side. The concentration (Cd norm and Cd rev) of urea in the dialysate emitted from the dialyzer is measured with the needles in the normal position and in a reversed position. The access flow rate before the arterial needle is calculated according to the formula:in which Keff is the effective clearance of the dialyzer and Qa is the access flow rate.

A pressure sensor senses a pressure of a fuel vapor system at a fuel vapor passage. An electronic control unit executes a post-depressurization period flow diagnosis to determine whether the fuel vapor passage is clogged based on a behavior of the pressure in the fuel vapor system, which is sensed with the pressure sensor in a sealed state of the fuel vapor system after introduction of a negative pressure into the fuel vapor system.

The invention discloses a system optimization method and device of ship operation energy efficiency. The method comprises the steps of data acquisition, mathematical model establishment, analysis and calculation, output and execution; namely, acquiring speed over water and speed over ground of the ship, real-time rotating speed and instant oil consumption of ship main engine; when the ship is in much deeper water, establishing a mathematical model between the real-time rotating speed of the ship main engine and the ship speed over water and a mathematical model between the real-time rotating speed of the ship main engine and the instant oil consumption of the ship main engine; analyzing and calculating the mathematical models under different water flow velocities and different main engine rotating speeds to obtain the ship kilometer oil consumption valves of the ship corresponding to different conditions; displaying the ship kilometer oil consumption value and the corresponding main engine rotating speed to guide the operation. The method also includes a ship technical state judging and navigation operating optimizing method. The device comprises a central processer and a memory thereof, a data acquisition equipment, man-machine conversation equipment, output equipment, a power supply unit and the like.

A photomask for use in photolithography has substrate, a main pattern at one side of the substrate, and a transparency-adjusting layer at the other side of the substrate. The transparency-adjusting layer has a characteristic that allows it to change the intensity of the illumination incident on the main pattern during the exposure process accordingly. In manufacturing the photomask, a first exposure process is carried out on a wafer using just the substrate and main pattern. The critical dimensions of elements of the pattern formed on the wafer as a result of the first exposure process are measured. Differences between these critical dimensions and a reference critical dimension are then used in designing a layout of the transparency-adjusting layer in which the characteristic of the layer is varied to compensate for such differences.

Construction machinery is capable of prompting an operator to control or operate the machinery to improve fuel consumption. The fuel consumption per time or the fuel consumption per work amount is measured, and an image showing a difference between the measured fuel consumption per time and a set fuel consumption per time or between the measured fuel consumption per work amount and a set fuel consumption per work amount is displayed on a display device (30). When the measured fuel consumption per time is larger than the preset fuel consumption per time or the measured fuel consumption per work amount is larger than the set fuel consumption per work amount, an indication for prompting the operator to improve the fuel consumption is displayed on the display device (30).

The method comprises the steps consisting in assuming that the gain of at least one injector is equal to a theoretical gain or an updated gain, and in replacing each of at least one reference injection of injection control duration controlled by the engine control unit in application of a stored characteristic, with a multiple injection comprising a succession of at least two injections of injection control durations that are assumed to cause the same mass of fuel to be injected as by the replaced reference injection, in determining the fuel mass difference between the reference injection and the multiple injection, in deducing therefrom an error in determining the characteristic, and in modifying the gain and/or the offset of the linear zone of the initial characteristic or at least a table or mathematical relationship for the non-linear zone of said characteristic, so as to compensate the error, and storing the new characteristic as determined in this way. Applications to real time determination as a function of the injection control duration of the flow rate characteristic of fuel injectors for internal combustion engines fed by injection.

A system and method for maximizing a vehicle's fuel efficiency preferably without inconveniencing the driver, includes maximizing a ratio of a real-time parameter proportional to engine load or engine power to fuel flow or air flow rate referred to herein as the P/F ratio. This ratio is calculated to evaluate engine fuel efficiency. With the system and method, the throttle is operated incrementally to increase or decrease the throttle in a manner to maximize the P/F ratio, thus maximizing fuel efficiency, in a pulse phase. The system and method implement an on and off pulse width modulation (“PWM”) style of control to modulate engine power and acceleration to achieve the speed that the driver desires, based on the position of the accelerator pedal. When the desired speed is achieved, the throttle is released and when the speed drops a sufficient amount, the throttle is re-engaged to reach the desired speed again. When the throttle is disengaged or when the driver releases the accelerator pedal, the system and method implement a glide phase, where the vehicle coasts without use of fuel or in neutral with very limited use of fuel and minimum engine drag.

The invention discloses a system for measuring and monitoring the fuel consumption of an automobile in use in real time and a measurement and monitoring method thereof. The system comprises on-board equipment, roadside equipment and a monitoring center, wherein the on-board equipment is arranged in the automobile, is connected with an on-board self-diagnosis system by an on-board diagnosis (OBD) interface module to read fuel consumption information and automobile information, and calculates the total fuel consumption of an engine by a master control unit; and the roadside equipment reads the total fuel consumption of the automobile by wireless communication and transmits super-standard automobile information to the monitoring center. In the method, the total fuel consumption is calculated by the fuel consumption information read from the on-board self-diagnosis system and a fuel charge calculation formula; and the roadside equipment reads the fuel consumption of the automobile and the super-standard automobile information to the monitoring center for processing by the wireless communication, and simultaneously informs a driver of the automobile with the super-standard fuel consumption. In the system and the method, data is read from the on-board self-diagnosis system, so the technology is simple and reliable and the detection accuracy is high; and the system and the method are applied to the fuel consumption detection of the automobile in any state to integrate the fuel consumption detection, maintenance and management of the automobile.