Abstract: A method for determining individual fuel consumption characteristics of different generator units of an electricity generating assembly, includes an acquisition of operation data including, for several acquisition times, a measurement of a total fuel flow rate consumed by the generating assembly, and measurements of the respective load rates of the different generator units, and a determination of the individual fuel consumption characteristics of these different generator units, from these acquired operation data.

Abstract: A water monitoring device includes a housing, a graduated tube, a magnet, and a flow sensor. The graduated tube is positioned inside the housing and has a longitudinal axis and an inlet diameter less than an outlet diameter. The magnet is positioned within the graduated tube and configured to translate along the longitudinal axis of the graduated tube. The flow sensor is mounted within the housing and outside the graduated tube. The flow sensor is configured to detect the magnet and the position of the magnet along the longitudinal axis of the graduated tube correlates to a flow level through the water monitoring device.

Abstract: Excess fuel consumption monitor and feedback systems for vehicles include sensor arrays of two primary types including those sensors deployed as part of a vehicle manufacturer established sensor suite and sensors deployed as after-market sensors. Together, these sensor suites include sensors coupled to vehicle subsystems and operating environments associated with the vehicle. Data from these sensors may be used as parametric inputs to drive algorithmic calculations which have outputs that express excess fuel consumption. Expressions of excess fuel consumption may be made instantaneously as real-time feedback to a vehicle operator/driver and/or a fleet manager as part of a summary report.

Abstract: A combustion control system for an engine of a vehicle includes an ion sensing system configured to generate an ion current signal indicative of a measured current across electrodes of a spark plug associated with a cylinder of the engine and a controller configured to monitor for peaks in the ion current signal and, upon detecting at least a first peak and a second peak in the ion current signal, estimate a location of peak pressure (LPP) based on the detected second peak in the ion current signal, estimate an angle (CA50) of a crankshaft of the engine at which approximately 50% of the heat generated during combustion in the cylinder of the engine is released, and control combustion phasing of the engine based on the estimated CA50 angle.

Abstract: Method and measuring device for determining the drinking water consumption in a drinking water system preferably in a building, includes a riser and a plurality of ring lines which branch off therefrom and rejoin in the direction of flow, wherein each ring line has at least one consuming fixture and at least one measuring device, and wherein the consumption of the drinking water in each ring line is determined with a separate measuring device.

Abstract: A system includes a vehicle system including one or more sensors that to monitor one or more properties related to an operation of a vehicle. The system also includes a processor that receives expected vehicle usage information from an applicant, a database, publicly available sources, or the like and receive a set of data including the one or more properties from the vehicle system. The set of data is associated with the expected vehicle usage information. The processor may then determine a premium base rate based at least in part on the set of data and a risk associated with the applicant and determine a vehicle rate based at least in part of the set of data and a risk associated with the vehicle. The processor may then display a visualization including the premium base rate and the vehicle rate on a display.

Abstract: A control system comprises a driving mode setting part 41 setting a driving mode, a fuel consumption rate calculating part 42 calculating a first fuel consumption rate when outputting power for driving use and a second fuel consumption rate when storing electric power in the battery, a fuel consumption rate correcting part 43 and a driving region judging part 44. The driving mode setting part sets the driving mode to the EV mode when the first fuel consumption rate is higher than the second fuel consumption rate and sets the driving mode to the engine operating mode when the first fuel consumption rate is lower than the second fuel consumption rate. The fuel consumption rate correcting part performs at least one of first correction raising the first fuel consumption rate and second correction lowering the second fuel consumption rate if the hybrid vehicle is driving through a residential neighborhood.

Abstract: A system according to the present disclosure includes a first crank angle module, a second crank angle module, and a spark control module. The first crank angle module determines a first crank angle of an engine at which a predetermined percentage of fuel in a first cylinder of the engine is combusted based on pressure in the first cylinder. The second crank angle module determines a relationship between the first crank angle and a second crank angle of the engine at which the predetermined percentage of fuel in a second cylinder of the engine is combusted based on pressure in the first cylinder and pressure in the second cylinder. The spark control module adjusts spark timing of the first cylinder based on the first crank angle, and adjusts spark timing of the second cylinder based on the relationship between the first and second crank angles.

Abstract: A fuel consumption-measuring system includes a feed line, a first pump which pumps fuel from a tank via the feed line to a consumer, a fuel consumption-measuring device in the feed line, a first return line which branches off at the consumer and opens into the feed line between the fuel consumption-measuring device and the consumer, a second return line which branches off from the feed line between the first pump and the fuel consumption-measuring device which opens into the tank, a branch which leads from the feed line into the second return line, a heat exchanger, and a flow device arranged in the first and second return lines. The flow device provides an equal volume flow at an opening of the first return line into the feed line and at the branch leading from the feed line into the second return line.

Abstract: For continuous measurement of the dynamic fuel consumption of an internal combustion engine with a venting tank (10) which is disposed in a return line (11) from the outflow side (12) of the fuel system (7) and is also connected to the intake line (13) to the fuel system, a filling level regulator (15) is provided at a connection of the venting tank (10) and has a circulation pump (22) as well as a control valve (9) connected thereto, through which the flow passes continuously, and which is opened more or less as a function of the filling level to be regulated. Thus apparent consumptions occurring in specific operating states of the internal combustion engine can be avoided but can also be taken into account as corrections.

Abstract: A vehicle fuel mileage determining system includes a fuel consumption measuring device, a distance measuring device, a display configured to display fuel mileage data and a controller. The controller is coupled to the fuel consumption measuring device, the distance measuring device and the display. The controller is configured to calculate fuel mileage data using baseline data, data from the fuel consumption measuring device and data from the distance measuring device. The controller further shows the fuel mileage data calculated on the display. The controller is further configured to determine the baseline data as follows: in response to a reset condition being detected, the controller defines the baseline data as being equal to initial factory settings; and in response to the reset condition not being detected, the controller defines the baseline data as being equal to previously determined fuel and distance data.

Abstract: A fuel level sensor detects the level of fuel in a fuel tank. A level signal detected by a float does not change in a full dead zone and an empty dead zone. During normal fuel consumption, the level signal changes according to the consumption amount. Thus when an electronic control unit, or ECU, detects that the fuel level sensor is operating normally, the ECU resets a fuel consumption amount. However, when a small quantity of fuel is supplied, the fuel consumption amount is not reset, and a measurement error may occur during failure detection. Accordingly, the ECU corrects a failure threshold value to avoid misdiagnosing a failure.

Abstract: Embodiments for diagnosing a humidity sensor are provided. One example method comprises, responsive to a humidity sensor test cycle, pumping air conditioning and windshield washer gas flows past a humidity sensor, and indicating humidity sensor degradation based on a response of the humidity sensor to the air conditioning and windshield washer gas flows. In this way, degradation of the humidity sensor may be indicated if the humidity sensed by the humidity sensor does not change responsive to the humidity sensor test cycle being initiated.

Abstract: Methods and systems for determining deviations is expected range, expected fuel economy, or both, for a vehicle. In accordance with one embodiment, a system includes a sensor unit and a processor. The sensor unit is configured to at least facilitate obtaining inputs for one or more factors having an effect on energy performance and/or fuel efficiency for a vehicle. The processor is coupled to the sensor unit, and is configured to at least facilitate determining a change in expected range for the vehicle from the one or more factors based on the inputs.

Abstract: The present disclosure relates to a method and an apparatus for displaying a fuel efficiency increasing rate during eco-coasting for an electric vehicle. According to embodiments of the present disclosure, a driver may confirm the fuel efficiency increasing rate depending on the eco-coasting performance after driving ends to lead a driver to use an eco-coasting guide function and perform fuel efficiency driving.

Abstract: Methods and systems are provided for improving vehicle performance and efficiency. The performance is improved by allowing the user to customize parameters and other features through the use of an interface accessible to the vehicle operator or owner, which enables and encourages development and rewards many stakeholders including vehicle producers and third party vendors (e.g. aftermarket), customers, maintenance service providers, and insurance companies. One form of performance improvement, a novel method of accomplishing an enhanced form of energy efficiency calculation for near real-time display to the operator, is provided in detail.

Abstract: A shovel includes a cabin in which a display monitor is provided, a main pump that generates a hydraulic pressure, an internal combustion engine that drives the main pump, and a display control part configured to generate display information to be displayed on the display monitor based on information communicated between the display control part and the internal combustion engine, and cause the generated display information to be displayed on the display monitor. The display control part is configured to cause a graph showing the fuel efficiency of the internal combustion engine over time and the operational work mode of the shovel corresponding to a time for which the fuel efficiency is calculated to be simultaneously displayed on the single display screen of the display monitor.

Abstract: A vehicle includes a powertrain comprising an engine configured to separately burn first and second types of fuels and propel the vehicle therefrom, and a computer programmed to compute a distance traveled per unit fuel burned for each fuel type, compute distance-to-empty (DTE) for each fuel type, and display DTE for each fuel type.

Abstract: A vehicle includes a display and a controller that operates the display. A first icon representing a reference energy consumption value based on a predetermined target energy consumption rate is displayed. A second icon representing a present energy consumption value is displayed. The icons are positioned relative to one another based on a difference between the reference energy consumption value and the present energy consumption value. A numerical scale may be displayed having values associated with the first and second icons. A vehicle having a hybrid powertrain including a traction battery may display an effective electric distance traveled that is based on a ratio of power supplied by the traction battery to total power supplied by the powertrain.

Abstract: A fuel system, in particular of a motor vehicle, with a fuel tank and a ventilation device for ventilating the fuel tank, wherein the ventilation device has at least one separation device which has a temporary accumulator for liquid fuel. The separation device has a fill level determination device for determining the fill level of in the temporary accumulator. The invention further relates to a method for operating a fuel system.

Abstract: Methods and systems for providing usage based insurance for one or more vehicles for an insured individual or party. In an example, fuel transaction data is received for a party, the fuel transaction data includes a fuel cost; insurance policy data is received for an insurance policy; a premium is determined for the insurance policy using a computing device and the premium is added to the fuel cost. In an example, a geographic location for a vehicle is determined and a premium is determined using at the least the geographic location. In an example, a number of miles driven in a time period is determined and a premium is determined using at the least the number of miles driven. In an example, a premium is determined for an insurance policy using at least a portion of the fuel transaction data. In an example, at least one vehicle related parameter is predicted from the fuel transaction data and a premium is determined using the vehicle related parameter.

Abstract: PROBLEM TO BE SOLVED: To provide a fuel consumption reduction amount calculation device, a fuel consumption reduction amount calculation and display program, a carbon dioxide emission reduction amount calculation device, and a carbon dioxide emission reduction amount calculation and display program, that digitize the fuel consumption reduction amounts or CO2 emission reduction amounts of a vehicle or a drier or the other heating appliances. SOLUTION: A fuel consumption reduction amount calculation device 10 inputs base line data 14 and 16 of a vehicle before mounting a combustion improvement device and project data 18 and 20 of the vehicle after mounting the combustion improvement device, and displays a value calculated by subtracting annual fuel consumption amount taken from project data from a value calculated by dividing annual travel distance taken from the project data by the fuel consumption rate taken from the base line data.

Abstract: Approaches for indicating vehicle fuel efficiency for vehicle usage patterns are provided. Patterns of inefficient operation are detected and conveyed to a user to inform the user of the impact of his/her inefficient operation. In these embodiments, a fuel efficiency tool provides this capability. The fuel efficiency tool comprises: an analysis component configured to analyze usage patterns of a vehicle; a calculation component configured to calculate a vehicle fuel efficiency for each of the usage patterns; and a notification component configured to: provide a real-time notification to a user of the vehicle indicating each of the following via a feedback device within the vehicle: a numerical representation of the vehicle fuel efficiency calculated for each of the plurality of recurring driver habits; and a monetary value indicating an amount of money sacrificed by at least one vehicle usage pattern that is contributing to inefficient vehicle fuel consumption.

Abstract: A system for calculating an instantaneous fuel economy for a vehicle is disclosed herein. The system includes, but is not limited to, a speed sensor that is configured to determine a current speed of the vehicle, an acceleration sensor that is configured to determine a current acceleration of the vehicle, a fuel sensor that is configured to determine a current fuel consumption rate of an internal combustion engine of the vehicle, a display unit, and a processor. The processor is communicatively coupled with the speed sensor, the acceleration sensor, and the fuel sensor, and is operatively coupled with the display unit. The processor is configured to determine the instantaneous fuel economy of the vehicle based on information obtained from the speed sensor, the acceleration sensor, and the fuel sensor. The processor is further configured to instruct the display unit to display the instantaneous fuel economy.

Abstract: An instrument that directly measures a flow rate and air-fuel ratio of exhaust gas, and from the flow rate and air-fuel ratio of the exhaust gas, calculates fuel consumption measures the fuel consumption at high response speed and with high accuracy. The instrument is provided with: an ultrasonic flowmeter 2 that measures a flow rate QEX of exhaust gas flowing through an exhaust gas flow path R; and an arithmetic unit 4 that calculates fuel consumption Fe of an engine with use of the exhaust gas flow rate QEX obtained by the ultrasonic flowmeter 2 and an air-fuel ratio AFR obtained by an air-fuel ratio sensor 3 that measures the air-fuel ratio AFR of the exhaust gas flowing through the exhaust gas flow path R.

Abstract: Approaches for indicating a vehicle fuel efficiency for at least one vehicle usage pattern are provided. Vehicle usage patterns are analyzed to discern if the vehicle is being operated in a fuel-efficient manner. Patterns of inefficient operation are detected and conveyed to the user to inform the user of the impact of his/her inefficient operation. A fuel efficiency tool provides this capability. Specifically, the fuel efficiency tool comprises: an analysis component configured to analyze a set of vehicle usage patterns of a vehicle, and a calculation component configured to calculate a vehicle fuel efficiency for each of the set of vehicle usage patterns. The fuel efficiency tool further comprises a notification component configured to provide a notification to a user of the vehicle indicating a vehicle fuel efficiency calculated for at least one of the set of vehicle usage patterns.

Abstract: A fuel measurement system for measuring a fuel consumption amount of an engine, intended to reduce a measurement error of a Coriolis flowmeter to thereby improve measurement accuracy and reproducibility of a fuel consumption amount. The system includes: a Coriolis flowmeter provided on a fuel supply path for supplying a fuel to the engine to measure a flow rate of the fuel in the fuel supply path; and a temperature control mechanism provided in an upstream side of the Coriolis flowmeter on the fuel supply path to control a temperature of the fuel flowing into the Coriolis flowmeter.

Abstract: A method and apparatus are provided for displaying an accumulated fuel usage to a driver of a rental vehicle, such as a rental truck. The rental vehicle has a fuel usage meter that incudes a digital display for displaying fuel consumption of a rental vehicle to a rental customer. The customer is instructed to reset the accumulated fuel consumption display to zero when the customer takes possession of the vehicle and is instructed to read the accumulated fuel consumption display before returning the vehicle to determine an amount of fuel consumed during the rental of the vehicle. The meter retains the accumulated fuel consumption when the engine is turned off, when the meter is uncoupled from the data bus of the vehicle, and when vehicle power is disconnected from meter.

Abstract: A method for determining the flow of an anode gas out of an anode sub-system. The method includes providing pressure measurements at predetermined sample times over a predetermined sample period and using the pressure measurements to calculate a slope of a line defining a change of the pressure from the beginning of the time period to the end of the time period. The slope of the pressure line is then used in a flow equation to determine the amount of gas that flows out of the anode sub-system, which can be through a valve or by system leaks.

Abstract: An apparatus is provided for providing users diagnosis on driving operations in the same manner as diagnosing vehicle failures and for presenting evaluation with supporting data so that users may recognize their driving operations. The apparatus reads out driving data for a plurality of driving cycles from an electronic control unit on board the vehicle. The electronic control unit includes a memory for storing driving data representing fuel efficiency condition of the vehicle in accordance with driving operation by a user in each driving cycle of the vehicle. Charts are produced representing fuel efficiency condition for each driving operation by the user for each driving cycle, based on the read out driving data. The charts are output as comparison results for each one of the driving cycles.

Abstract: An accelerator opening determining unit determines whether an accelerator opening achieved through an accelerator operation by a driver of a vehicle exceeds an upper limit value thereof. A travel distance adding-up unit adds up a travel distance within accelerator-opening upper limit value when the accelerator opening is not determined to exceed the upper limit value. When the accelerator opening is determined to exceed the upper limit value, the travel distance adding-up unit adds up a travel distance exceeding accelerator-opening upper limit value. A fuel-saving driving rating unit rates the driving of the driver based on each added-up value added up by the travel distance adding-up unit.

Abstract: A vehicle route guidance system is provided that may dynamically determine one or more possible destinations within a predetermined distance of a current location of a vehicle having the vehicle route guidance system. The vehicle route guidance system may determine respective routes to the one or more possible destinations and may access price information with respect to the one or more possible destinations. For each of the one or more possible destinations, the vehicle route guidance system may estimate a cost of fuel to be consumed by the vehicle to reach respective ones of the one or more possible destination based on received traffic information, a respective route, and vehicle fuel consumption information. The vehicle route guidance system may provide information for guiding the vehicle to one of the one or more possible destinations having a lowest total overall cost.

Abstract: A fuel consumption saving drive supporting device which calculates a mileage of each driver and informs each driver of advice based on an increase or a decrease of the calculated mileage is disclosed. The fuel consumption saving drive supporting device extracts a drive operation of the driver or a drive condition of a vehicle of the driver for increasing the mileage, and informs the driver of the advice in the drive operation or the drive condition corresponding to the extracted drive operation or the extracted drive condition.

Abstract: A process and system are provided for determining fuel consumption of a motor vehicle. A first mean fuel consumption, which cannot be reset under a user's influence, is determined. A second mean fuel consumption, which can be reset under a user's influence, is determined as a function of several measured values. A third mean fuel consumption is determined as follows: (a) at the beginning of a predefined time period, which starts with a resetting of the second mean fuel consumption, the third mean fuel consumption is set to be equal to the first mean fuel consumption; (b) between the beginning and the end of the predefined time period, the third mean fuel consumption is set to be a weighted mean of the first mean fuel consumption and the second mean fuel consumption; and, (c) starting at an end of the predefined time period, the third mean fuel consumption is set to be equal to the second mean fuel consumption. A signal indicative of the third mean fuel consumption is provided.

Abstract: An accelerator-off, fuel-cut traveling determining unit determines whether the number of engine revolutions of a vehicle is equal to or higher than a predetermined value, whether an accelerator opening rate is equal to or lower than a predetermined value, and whether a traveling state is an accelerator-off, fuel-cut traveling state where a quantity of fuel injection to an engine is 0. When it is determined that the traveling state is the accelerator-off, fuel-cut traveling state, the traveling distance adding-up unit adds up accelerator-off, fuel-cut traveling distances. A fuel-saving driving rating unit rates driving by a driver based on each of the added-up values which were added up by the traveling distance adding-up unit. A fuel-saving driving advice generating unit notifies the driver of a fuel-saving driving advice together with a rating result in accordance with the rating result.

Abstract: A method for determining the amount of fuel flow from a high pressure gas tank to the anode side of a fuel cell stack through pulsed injector. The anode sub-system pressure is measured just before the injector pulse and just after injector pulse and a difference between the pressures is determined. The difference between the pressures, the volume of the anode sub-system, the ideal gas constant, the anode sub-system temperature, the fuel consumed from the reaction in the fuel cell stack during the injection event and the fuel cross-over through membranes in the fuel cells of the fuel cell stack are used to determine the amount of hydrogen gas injected by the injector.

Abstract: A method for accurately determining fuel efficiency in diesel engines of vehicles, as they exist on the job. In determining the efficiency, work done by the vehicle in combination with accurately measured fuel consumption enables calculation of the fuel efficiency of the vehicle. The method of the invention is of use in determining a baseline fuel efficiency for use in evaluating the effectiveness of fuel efficiency related improvements to the engine or vehicle. Following making the improvements, additional fuel efficiency tests using the method of the invention are carried out for comparing the new fuel efficiency with the baseline fuel efficiency. In some applications GPS systems are used for determining work done by the vehicle.

Abstract: A system and method is employed to regulate a minimum transmission input speed based on automatic fluid temperature. The system includes a temperature sensor for sensing a temperature of the automatic transmission fluid and a controller for setting a minimum engine speed of the engine based on the temperature of the automatic transmission fluid. The size of a transmission pump may be reduced while the pump is still able to supply enough automatic transmission fluid to friction elements and gear ratios to provide lubrication and enable friction element actuators to engage and disengage the friction elements in a timely and effective manner. In a preferred form of the invention, when the temperature of the automatic transmission fluid is below 210° F., the minimum engine speed is set to no greater than 900 rpm; and when the temperature of the automatic transmission fluid is above 210° F., the minimum engine speed is set to no less than 1000 rpm.

Abstract: A method for estimating a cylinder air charge for an internal combustion engine includes determining a first volumetric efficiency corresponding to engine operation with an open exhaust gas recirculation valve, determining a second volumetric efficiency corresponding to engine operation with a closed exhaust gas recirculation valve, determining a cylinder air charge using a selected one of the first and second volumetric efficiencies.

Abstract: A vehicle display device is arranged in a vehicle having an idling stop function that automatically stops an engine when the vehicle temporarily stops. The device includes a control unit that calculates a deviation of a current instant fuel consumption with respect to an average fuel consumption in a past predetermined period of the vehicle; and a fuelometer that indicates fuel consumption information representing whether a current driving state of the vehicle decreases the average fuel consumption. When the vehicle is in the idling stop state, the fuelometer indicates that the deviation is 0 regardless of the instant fuel consumption and the average fuel consumption.

Abstract: A vehicle information system operating method performs operations comprising determining an operational period, determining a movement period, determining a modification factor, determining a fuel economy value and determining an adjusted fuel economy value. The determining of the operational period determines the operational period during which a vehicle is running. The determining of the movement period determines the movement period during which the vehicle is in motion. The determining of the modification factor determines the modification factor based on respective durations of the operational period and the movement period. The determining of the fuel economy value determines the fuel economy value associated with the operational period. The determining of the adjusted fuel economy value determines the adjusted fuel economy value based on the fuel economy value and the modification factor.

Abstract: For monitoring (unmeasured) process states of a rotating machine having a combustion chamber (e.g. a gas turbine), compositions of educts entering the combustion chamber are measured. Based on the compositions of the educts, the composition of the product produced by the combustion chamber can be determined. Moreover, the mechanical power (Pmech) generated by the rotating machine can be determined. Based on the mechanical power (Pmech), the composition of the educts and product, and stoichiometric relationships of educts and product, the values of process states, such as the air mass flow (wa) through the compressor leading into the combustion chamber and/or the gas mass flow (wg), the composition and/or the temperature (T3) of exhaust gas exiting the combustion chamber can be determined. Based on precise measurements of the educt (e.g. the composition of air and fuel in the combustion process), the product (i.e.

Abstract: Diesel fuel consumption is calculated in real-time in an vehicle diagnostic monitor using standard OBDII reported parameters and publicly available engine characteristics. Also, fuel consumption in vehicles that maintain a constant air-fuel ratio is calculated by analyzing the subject engine as an air pump and reading publicly available OBDII diagnostic data to estimate the instantaneous airflow through the engine without the need of MAF sensor data.

Abstract: Provided are a method and an apparatus that make is possible to measure the amount of greenhouse gas reduced for the stop time of an engine stopped while a vehicle idles. A first amount of fuel consumed in an engine is measured before the engine of a vehicle idling stops. A second amount of fuel consumed for restarting the engine, which is stopped, by idling of the vehicle is measured. Exhaust reduction of greenhouse gas is calculated from idle stop of the vehicle to engine restart, on the basis of the first and second amount of fuel consumed and an engine stop-continued time from an ECU.

Abstract: A method for accurately determining fuel efficiency in diesel engines of vehicles, as they exist on the job. In determining the efficiency, work done by the vehicle in combination with accurately measured fuel consumption enables calculation of the fuel efficiency of the vehicle. The method of the invention is of use in determining a baseline fuel efficiency for use in evaluating the effectiveness of fuel efficiency related improvements to the engine or vehicle. Following making the improvements, additional fuel efficiency tests using the method of the invention are carried out for comparing the new fuel efficiency with the baseline fuel efficiency. In some applications GPS systems are used for determining work done by the vehicle.

Abstract: A system and method for determining and displaying an overall efficiency value of a vehicle. The vehicle may include an engine and an electric machine that operates to provide torque to propel the vehicle. In addition, the vehicle may have an electric power source that provides electric power to the electric machine. A controller may determine and transmit the overall efficiency value so that the information display displays the number of efficiency indicators. Also, the number of efficiency indicators displayed may be based on the overall efficiency value.

Abstract: The control apparatus for the internal combustion engine includes: a unit for detecting the change in the alcohol concentration of a fuel supplied to the internal combustion engine including a plurality of cylinders; a unit for detecting an air-fuel ratio variation between the plurality of cylinders; a unit for making the failure diagnosis when the air-fuel ratio variation between the plurality of cylinders exceeds a predetermined threshold value; and a unit for inhibiting the failure diagnosis executed based on the air-fuel ratio variation between the plurality of cylinders when the change in the alcohol concentration is detected.

Abstract: A method for measuring an amount of oil consumed by an internal combustion engine including an oil pan for supplying lubricating fluid. The method: causes the gravitational flow of the oil contained in the engine oil pan, from the oil pan towards a measuring tank; measures and stores a first value of the oil volume contained in the measuring tank; subjects the oil contained in the measuring tank to a pressurized gas thrust causing the rise of the oil from the measuring tank towards the oil pan; and repeats the preceding method at least once to obtain a second value of the oil volume contained in the tank.

Abstract: A fuel usage monitoring system, in certain aspects, may be configured to determine the fuel usage rate of a work vehicle service pack engine using control signals relating to operating parameters of the service pack engine and associated equipment. In certain embodiments, the control signals may relate to operating parameters of the engine, a fuel injection pump associated with the engine, a governor associated with the fuel injection pump, a fuel reservoir associated with the engine, and other components associated with the engine. In particular, the control signals may relate a position of a control rack of the fuel injection pump. The control signals may be correlated with fuel usage rates prior to operation of the fuel usage monitoring system. In addition, the correlations may vary as certain parameters of the engine, such as operating speed, vary. The correlations may be implemented as algorithms within software of the fuel usage monitoring system.

Abstract: A measurement device measures engine oil consumption of an engine lubricated by engine oil. The measurement device includes a sensing pipe housing in which a sulfur dioxide sensing pipe arranged to sense the sulfur dioxide is disposed, an exhaust gas introduction passage connecting the engine and a first end of the sulfur dioxide sensing pipe, and arranged to introduce the exhaust gas from the engine to the sulfur dioxide sensing pipe, and a flow amount measurement device arranged to measure the flow amount of the exhaust gas flowing in the sulfur dioxide sensing pipe. The engine oil measurement device is small in size and able to measure engine oil consumption easily.