78 results about "Trip distance" patented technology

The invention relates to a regeneration time control method for a DPF (Diesel Particulate Filter) of a diesel engine. The method comprises the following steps: measuring a pressure difference value of both ends of the DPF in real time by utilizing a pressure difference sensor; obtaining an estimated value of a DPF carbon carrying quantity by looking up a table; simultaneously monitoring whether the estimated value of the DPF carbon carrying quantity has the suddenly-reduced phenomenon; when the estimated value of the DPF carbon carrying quantity has the suddenly-reduced phenomenon, calculating a compensation value of the DPF carbon carrying quantity according to a trip distance and trip time of a vehicle after last regeneration; then adding the estimated value of the DPF carbon carrying quantity and the compensation value of the DPF carbon carrying quantity to obtain a corrected value of the DPF carbon carrying quantity; and finally, according to the size of the corrected value of the DPF carbon carrying quantity, judging whether to trigger the DPF to enter a regenerated state. In the regeneration time control method for the DPF of the diesel engine, the compensation value of the DPF carbon carrying quantity is calculated according to the suddenly-reduced condition of the estimated value of the DPF carbon carrying quantity so as to correct the DPF carbon carrying quantity; the accuracy of estimated data of the DPF carbon carrying quantity when distribution of carbon particles inside a carrier is nonuniform is greatly improved, so that regeneration time is avoided being judged by mistake and safety of a carbon cigarette pellet carrier is ensured.

The invention discloses a real-time road traffic characteristic based motor vehicle emission measuring and calculating method. The method includes steps as follows: establishing vehicle type mapping relation according to vehicle type and preset vehicle type standards in the COPERT model; confirming the basic data including the traffic flow, the overall speed, the motor vehicle technical index database, the atmosphere parameter values, the road length, the motor vehicle inventory, the oil product information, the single traveling trip distance and the single traveling mean time; outputting all basic data obtained in step S2 into the COPERT model, and calculating to obtain the basic emission factor; according to the basic emission factor and the motor vehicle inventory of all vehicle types in the step S3, calculating to obtain the comprehensive emission factor of all vehicle types; according to the comprehensive emission factor of all vehicle types in the step S4, calculating the road source intensity; and further, according to the road source intensity obtained in the step S5 and the road length in the step S2, calculating the emission.

The invention provides a non-pneumatic safety tire, which comprises a tread, an outer ring, a support body and an inner ring from the outside to the inside in order. The tread is bonded or vulcanized on the outer ring, the support body is arranged between the inner ring and the outer ring along the radial direction and circumferential direction from the outer ring, multiple groups of damping units and support ribs, each group of damping unit consists of two sets of damping structures, and two sets of damping structures are circumferentially disposed with the radial direction as the symmetric axis. The non-pneumatic tire provided by the invention has good bearing capacity, and by means of wheel disk thickening and multiple damping hole diameter change, the bearing capacity of the tire can be enhanced. The non-pneumatic safety tire not only has the carrying capacity and static rigidity characteristics of pneumatic tyres, but also has rationally distributed ground pressure, the abrasion resistance and trip distance of the tire are increased, especially the reasonable distribution of multiple damping holes and support ribs in the radial and circumferential direction can enhance the carrying capacity of the tire and also can improve the static rigidity of the tire.

The invention discloses a charging path planning method and device for an electric automobile to solve the problem that emergency charging is required during a trip process of an electric automobile user. The method considers real-time dynamic energy consumption during driving. The method mainly includes the following steps: calculating an average energy consumption value of the electric automobile under various driving working conditions according to historical driving working condition data of the electric automobile; calculating dynamic remaining electric quantity after the electric automobile passes through each road section according to a real-time driving working condition dynamic state of each road section during the driving; calculating user trip distance, trip time and charging cost based on real-time traffic information published by the Internet and information published by a charging station operation monitoring system; and planning a charging path of the electric automobileby employing an ant colony algorithm, under constraint of battery remaining electric quantity, and taking optimal sum of the trip distance, the trip time and the charging cost as an aim.

The invention discloses a mobile phone signaling data-based urban transportation characteristic determining method, which comprises the steps of preprocessing mobile phone signaling data and quickly extracting an available field to form a storage format employing a user ID as a key field; sorting mobile positions of each user according to time and carrying out denoising according to a speed and angle exception judgment method; forming a convergence point by using a DBSCAN clustering algorithm, and identifying all stay points and stay time of each user every time; and classifying the stay points and calculating the urban traffic generation amount, the traffic attraction amount, the travel times, the average travel times, the travel distance, the commuting trip distance, the living index and the employment index. The urban traffic generation amount, the traffic attraction amount, the travel times, the average travel times, the travel distance, the commuting trip distance, the living index and the employment index are quickly and relatively accurately calculated by fully utilizing mobile phone signaling data, and data support is provided for urban transportation planning, traffic management and traffic strategy research.

A system and method distributes incentive payments to employees performing warehouse tasks to reward productivity. Time-stamped data from sensors on a vehicle having a vehicle code is periodically retrieved to provide trip onset and trip conclusion events and an employee code associated an operator. The data includes a vehicle code trip distance; and any lift events. Job onset and job conclusion events and the employee code associated with each job code as well as time clock events including clock in and clock out data are used to provide segments in a timeline, the segments bounded by trip onset events. Lift time within a segment is derived by adding a fork lowering time equal to any fork raising time to a laden time present within the segment. Aggregating time and movement within a segment to produce a utilization percentage of the segment. A tracked time ratio includes segments within an interval.

The invention discloses a simulation test method of road surface anti-skidding overlaying material unconsolidation and particle fall, comprising the following steps: 1) overlaying the anti-skidding overlaying material to be tested on the road surface panel surface to be prepared into a test piece; 2) putting the test piece below a tyre; 3) adjusting a frictional force and a wheel pressure applied on the test piece surface by the tyre, and adjusting the opposite trip distance and the travel speed between the tyre and the test piece; 4) carrying out opposite alternate motion to the tyre and the test piece; collecting aggregate particles falling from the test piece surface; and recording the quality of the falling aggregate particles for different times of alternate motion between the tyre and the test piece. The test method for the testing equipment comprise a movable test bed, the tyre, a tyre pressure loading mechanism, a frictional force loading mechanism and a driving mechanism, wherein the test bed can be used for placing the test piece, the tyre is arranged on the test piece, the tyre pressure loading mechanism is connected with the spindle of the tyre, the frictional force loading mechanism is matched with the tread of the tyre, and the power output end of the driving mechanism is connected with the test bed.

Driver braking performance feedback may be conveyed to a vehicle operator as a braking efficiency score using a vehicle display system. The display system may include a vehicle display for displaying a braking efficiency indicator or gauge corresponding to the braking efficiency score. The braking efficiency score may be based on a comparison of the total regenerative braking energy recaptured during at least one braking event to a either a maximum amount of braking energy that may be recaptured during the at least one braking event or an actual total braking energy expended during the at least one braking event. The braking efficiency score may be displayed upon the completion of a braking event or upon a completion of a trip including a plurality of braking events. The display may also convey a distance corresponding to a portion of a trip distance achieved through regenerative braking.

A time of flight pixel cell includes a photosensor to sense photons reflected from an object and pixel support circuitry. The pixel support circuitry includes charging control logic coupled to the photosensor to detect when the photosensor senses the photons reflected from the object. The pixel support circuitry also includes a controllable current source coupled to provide a charge current in response to a time of flight signal coupled to be received from the charging control logic. A capacitor is coupled to receive the charge current from the controllable current source in response to the time of flight signal, and voltage on the capacitor is representative of a round trip distance to the object. A counter circuit is coupled to the photosensor to count a number of the photons reflected from the object and received by the photosensor.

Disclosed herein is a VTOL tilt-wing aircraft that serves as a 4-6 passenger airliner for scheduled service between city centers and that is optimized for travel distances from 100-500 miles fully loaded with passengers and fuel. The VTOL aircraft solves technical, cost, and time problems inherent in other forms of transportation, including, but not limited to, rail, passenger airlines, and helicopters. The VTOL aircraft (1) takes off and lands like a helicopter, (2) flies fast like a jet, and (3) costs less than or comparable to a helicopter.

The invention discloses a calculating method and device for trip distance of a car, and aims to solve the problem of the prior art that the a vehicle is just maintained based on the trip distance of the vehicle running along the ground and without consideration on the influence of running under poor road condition on the service life of the vehicle. According to the method and device disclosed by the invention, the influence of the bumpy pavement on the service life of the vehicle is fully taken into account during calculating the equivalent trip distance. The method comprises the steps as follows: the trip distance of the vehicle is taken as the trip distance of wheels running around the pavement when the vehicle is in a running-in period; the equivalent trip distance can be referred to be expressions in the specifications, and the total equivalent trip distance refers to the expression in the specifications; the equivalent trip distance, and the trip distance of the wheels running along the pavement, etc. are added up.

The invention discloses a trip segment identification method based on GPS trajectory data. The method mainly includes the following steps of data cleaning and preprocessing, identification of trip endpoints, removal of false trip endpoints and merging of trip segments. On the basis of integrated advantages of the rule method and the clustering method, the method provides data cleaning and preprocessing processes, noise generated during the identification of trip endpoints and the merging of trip segments are effectively removed, the algorithm is simple and effective and the identification result is accurate and reliable. The distance between adjacent intervals of a trajectory point and the time difference are used for calculating the instantaneous velocity of the point, and the product of the velocity and the time is used for obtaining the trip distance. The method is suitable for trip segment identification based on the GPS trajectory data, GPS trajectory data mining algorithm systems are enriched, and a theoretical support is provided for large-scale travel investigation and promotion based on smart phones.

An apparatus for estimating an influx of a formation fluid into a borehole fluid, the apparatus having: a carrier; an acoustic transducer disposed at the carrier; a first reflector disposed a first distance from the acoustic transducer and defining a first round trip distance; a second reflector disposed a second distance from the acoustic transducer and defining a second round trip distance; and a processor in communication with the acoustic transducer and configured to measure a difference between a first travel time for the acoustic signal traveling the first round trip distance and a second travel time for the acoustic signal traveling the second round trip distance to estimate the influx of the formation fluid; wherein the acoustic transducer, the first reflector, and the second reflector are disposed in the borehole fluid that is in the borehole.

The invention relates to a method for evaluating the B10 reliable life of a mechanical part of a vehicle engine. The method comprises the following steps: selecting a mechanical part, which is subjected to B10 reliable life evaluation, of the vehicle engine; sequentially determining a mission profile of the vehicle engine corresponding to the mechanical part of vehicle engine, a load action process parameter, a main failure mode, a stress cumulative distribution function, a probability density function of initial strength, a change rule of residual strength along with the trip distance of a vehicle and the like; and substituting the parameters into a B10 reliable life model so as to determine the B10 reliable life of the mechanical part of the vehicle engine without depending on a great number of life data. By the method, the B10 reliable life of the mechanical part of the vehicle engine can be determined at the design stage of the mechanical part of the vehicle engine, design, test and use of the mechanical part of the vehicle engine can be guided well, the development and research efficiency of the vehicle engine and the mechanical part thereof can be improved, the development period is shortened, and the development cost is saved.

The invention discloses a control method of an electric passenger car interior water-cooled air conditioner. The electric passenger car interior water-cooled air conditioner has two working states of refrigeration and heating. The control method of refrigeration and heating includes the steps that in the refrigeration state, ice cubes are placed in an energy-storing and heat-preserving water tank, water in the energy-storing and heat-preserving water tank turns into ice water as the ice cubes melt, an air blower and a water pump are started to enable the ice water to pass through an evaporator in a circulating mode, and cold air generated by the evaporator is blown into a cab of an electric passenger car by the air blower; in the heating state, while the electric passenger car is charged, electric heating tubes work to heat the water in the energy-storing and heat-preserving water tank, when hot air is needed, the air blower and the water pump are started to enable hot water to pass through the evaporator in a circulating mode, and hot air generated by the evaporator is blown into the cab of the electric passenger car by the air blower. The control method of the electric passenger car interior water-cooled air conditioner can prevent the air conditioner from consuming electric energy of batteries of the electric passenger car excessively when the air conditioner works, and thus increases the trip distance of the electric passenger car, reduces the load of the batteries and prolongs the service life of the batteries.

The invention discloses a bus stop estimation method based on data fusion, by analyzing the bus route data, the bus GPS data and the bus IC card swiping data are fused to obtain the user's boarding and bus arrival information. The bus GPS data and bus IC card swiping data are fused to obtain the user's boarding and bus arrival information, regression and exploration mechanism is introduced, wherein the regression mechanism considers users' historical visiting stops; exploration mechanism combines the general rule of residents' bus trip distance and the bus attractiveness of bus stops to realize the prediction of drop-off point of users' bus trip. Through the fusion of various traffic data, the method can effectively extract the information of the user's bus stop and bus route.

The invention discloses a resident travel index evaluation method, comprising the following steps: obtaining a population trip index parameter of a target area, wherein the population trip index parameter comprises a trip distance, a trip time and a trip frequency of the resident of the target area; confirming travel/stay status and demographic occurrence/attraction data of residents in the targetarea according to the population travel indicator parameters; evaluating a resident travel indicator according to the travel/stay status and the demographic occurrence/attraction data. The inventionalso provides a resident travel index evaluation device and a computer-readable storage medium. The invention obtains the travel index data, correspondingly calculates the travel/stay status and the population occurrence/attraction data of the residents, and further evaluates the travel index of the urban residents through the calculated data, thereby realizing the beneficial effect of improving the statistical efficiency of the travel data of the residents through the data collection mode.