EP2909816A1 - Détermination de la consommation d'énergie pour un véhicule - Google Patents

Détermination de la consommation d'énergie pour un véhicule

Info

Publication number
EP2909816A1
EP2909816A1 EP13846693.3A EP13846693A EP2909816A1 EP 2909816 A1 EP2909816 A1 EP 2909816A1 EP 13846693 A EP13846693 A EP 13846693A EP 2909816 A1 EP2909816 A1 EP 2909816A1
Authority
EP
European Patent Office
Prior art keywords
vehicle
energy consumption
operational data
consumption
engine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP13846693.3A
Other languages
German (de)
English (en)
Other versions
EP2909816A4 (fr
Inventor
Anders Jensen
Mikael CURBO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Scania CV AB
Original Assignee
Scania CV AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Scania CV AB filed Critical Scania CV AB
Priority claimed from PCT/SE2013/051213 external-priority patent/WO2014062127A1/fr
Publication of EP2909816A1 publication Critical patent/EP2909816A1/fr
Publication of EP2909816A4 publication Critical patent/EP2909816A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
    • B60R16/0236—Circuits relating to the driving or the functioning of the vehicle for economical driving
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00—Commerce
    • G06Q30/06—Buying, selling or leasing transactions
    • G06Q30/0601—Electronic shopping [e-shopping]
    • G06Q30/0623—Item investigation
    • G06Q30/0625—Directed, with specific intent or strategy
    • G06Q30/0627—Directed, with specific intent or strategy using item specifications
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00—Commerce
    • G06Q30/06—Buying, selling or leasing transactions
    • G06Q30/0601—Electronic shopping [e-shopping]
    • G06Q30/0623—Item investigation
    • G06Q30/0625—Directed, with specific intent or strategy
    • G06Q30/0629—Directed, with specific intent or strategy for generating comparisons
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/84—Data processing systems or methods, management, administration

Definitions

  • the present invention pertains to a system for the use of operating data from at least one vehicle according to the preamble of patent claim 1 and a computer program and a computer program product, which implement the method according to the invention.
  • Fig. 1 shows a schematic view of an example vehicle 100, which may be e.g. a car, truck or bus.
  • vehicle has a driveline comprising one combustion engine 101, which in a customary manner, via an output shaft 102 on the combustion engine 101, usually via a flywheel, is connected to an input shaft 109 in a gearbox 103 via a clutch 106.
  • the clutch 106 may e.g.
  • control device 400 may also control the gearbox 103.
  • the gearbox 103 is here illustrated schematically as one device. However, the gearbox 103 may also physically consist of several cooperating gearboxes, for example a so-called range gearbox, main gearbox and split gearbox, which are arranged along the vehicle's driveline.
  • the gearbox may comprise a suitable number of gears.
  • Today's gearboxes for heavy goods vehicles usually have twelve forward gears, two reverse gears and one neutral gear.
  • An aftertreatment system 200 purifies the exhausts from the combustion engine 101.
  • the vehicle's driveline further comprises drive shafts 104, 105, which are connected to the vehicle's driving wheels 113, 114, and which are driven by an output shaft 107 from the gearbox 103, via a shaft gear 108, such as a differential shaft.
  • the driveline thus comprises the engine 101, the output shaft 102, the clutch 106, the input shaft 109, the gearbox 103, the output shaft 107 and the shaft gear 108.
  • the vehicle 100 further comprises various different braking systems, such as a customary braking system, which may
  • the engine 101 may be controlled based on instructions from a cruise control, or by a driver of the vehicle.
  • combustion engines, hybrid electric vehicles and electric vehicles have a large number of different characteristics which may be selected to suit a driver and/or an owner of the vehicle.
  • the buyer of a vehicle must select the type of fuel (such as diesel, petrol, gas, ethanol or electric power) with which the vehicle is driven, the engine power of the vehicle, the type of gearbox 103 which the vehicle will have, the type of clutch 106 which the vehicle will have, the type of gearing which the back shaft 108 will have, the type of brake system with which the vehicle will be equipped, the type of turbo charger which the vehicle will have, the type of wheels 111, 112, 113, 114 which the vehicle will have, the type of distribution gearbox which the vehicle will have, i.e.
  • fuel such as diesel, petrol, gas, ethanol or electric power
  • the main expenditure items for the day- to-day operation of a vehicle consist, apart from the cost of acquisition of the vehicle, of the vehicle's driver's salary, costs of repair and maintenance and fuel/energy for the propulsion of the vehicle.
  • Energy costs such a fuel costs, may impact the profitability for the hauling company to a very great extent, and should therefore be kept as low as possible. If, for example, the types of engine, gearing and wheels are selected so that they are well adjusted to the future use of the vehicle, the energy costs may be minimised.
  • a vehicle which is well adapted to its use will also generate less repair costs.
  • a calculation device determines the energy consumption c in the form of an energy consumption matrix for the at least one vehicle as a function of engine speed and torque for a driveline in the at least one vehicle. For example, engine speed and torque for the engine 101 or engine speed and torque for an input shaft 109 to the gearbox 103 may be used to determine the energy consumption c. A person skilled in the art realises that engine speed and torque for other parts of the driveline suitable for the purpose may be used to calculate this energy consumption c. A utilisation device is arranged to then use this determined energy
  • the present invention provides energy consumption c in the form of an energy consumption matrix for the at least one vehicle as a function of engine speed and torque, where this energy consumption c is calculated based on operational data and may, for example, consist of diesel consumption, petrol consumption, gas consumption, ethanol consumption or
  • the analysis of the energy consumption c may be significantly simplified. For example, based on the determined energy consumption c, it may be gleaned during which driving conditions and/or which runs the largest amount of energy is consumed, which means that attempts may be made to reduce these driving conditions and/or runs and thus to reduce the energy consumption c.
  • an easily understandable explanation of how energy consumption c depends on driving conditions and/or runs may be provided when the vehicle is developed/optimised, when the vehicle is sold or during driver training, for example.
  • a seller may thus easily, and based on facts, show how the energy consumption c may be reduced through the choice of characteristics for the new vehicle.
  • driver training it may be easily showed, based on facts, how the energy consumption c may be reduced by driving the vehicle in a manner that reduces fuel consumption, for example by reducing speed.
  • the energy consumption c provided through the present
  • invention may also be used to determine how well simulations correspond with reality and/or to adjust these simulations so that they correspond better with reality.
  • the present invention may also be used by, for example, a seller to create confidence among customers, since the seller will be perceived by the customers as interested and well informed if the seller is able to prove to the customers that he knows how the customers use their vehicles and what type of energy consumption c this results in.
  • vehicle specifications are systematically obtained. This means that an optimal choice of a vehicle may be made when ordering and/or purchasing a vehicle, so that the total cost of the vehicle and also the driver comfort may be significantly improved.
  • the one or several simulations are based on operating data which have been stored in one or several vehicles when these have been operational. Therefore, if the present invention is used, a hauling company or a vehicle owner, who has previously used one or several vehicles on a certain route or along a route similar to this certain route may, for example, use operating data from these vehicles if the vehicle which is to be ordered and/or purchased will be used on the same route. Similarly, a client and/or buyer may also use operating data from vehicles owned by other persons and/or companies, which use the vehicles for this route, or a similar route. Potentially, the use of operating data from vehicles owned by others may require a permission of some kind from the other vehicle owner.
  • the present invention may also be used to streamline the selling process.
  • Sellers have previously often found it difficult not having enough time. Through one embodiment of the invention they may with, for example, the use of a chassis number and/or a registration number make simulations and/or optimisations directly, resulting in vehicle specifications.
  • the time-consuming administration previously required during the selling process, which among others entailed interaction with the buyer, may therefore be minimised through the
  • Figure 1 shows a schematic view of an example vehicle
  • Figure 2 shows an example of an energy consumption matrix
  • Figure 3 shows an example of a load matrix
  • FIG. 4 shows a control device according to the invention. Description of preferred embodiments
  • the present invention provides a system which may calculate an energy consumption c in the form of an energy consumption matrix, such as fuel consumption in the form of diesel consumption, petrol consumption, gas consumption, ethanol consumption or electric power consumption, which may be intuitively understood by, for example, a driver, seller and buyer of a vehicle, and may be used in driver training, sales and further development of the vehicle.
  • an energy consumption c in the form of an energy consumption matrix, such as fuel consumption in the form of diesel consumption, petrol consumption, gas consumption, ethanol consumption or electric power consumption, which may be intuitively understood by, for example, a driver, seller and buyer of a vehicle, and may be used in driver training, sales and further development of the vehicle.
  • the system comprises a collection device, calculation device and utilisation device.
  • collection device is arranged for the collection of
  • operational data comprising information about how at least one vehicle has been used before the collection.
  • Operational data may be provided to the collection device either directly from the at least one vehicle, or may be stored in the interim in some form of a database.
  • a database may in this case comprise essentially all suitable devices in which data may be stored, such as a server, computer,
  • the system may according to the invention collect operational data on which energy consumption calculations may suitably be based.
  • operational data from more than one vehicle is used, so that the statistical reliability of the operational data increases.
  • operational data from several vehicles on a certain route may be collected and used by the system, for example. This reduces the risk of a driver's personal driving style causing
  • an energy consumption c is obtained, which should be generally applicable to several drivers.
  • the system further comprises a calculation device which is arranged to determine an energy consumption c for at least one vehicle as a function of engine speed and torque for a driveline in this at least one vehicle, where the driveline comprises e.g. the engine and the gearbox as described above. This determination of the energy
  • consumption c is based on operational data, which is collected by the collection device.
  • the system further comprises a utilisation device, which is arranged to use the energy consumption c determined by the system in e.g. sales, preparation of vehicle specifications, driver training and further development of the vehicle.
  • the calculation device is, according to this invention, arranged to determine the energy consumption c in the form of an energy consumption matrix, which shows the energy consumption c per said engine speed and torque.
  • the energy consumption c in the form of diesel consumption for specific engine speeds and torque may be detected here, which provides a very intuitive provision of energy consumption information.
  • Figure 2 shows a non-limiting example of such an energy consumption matrix.
  • the engine speed is provided, for example an engine speed
  • the torque is provided, for example an engine torque, which has been submitted at the respective engine speed in relation to a maximum torque, in other words as a percentage of the maximum torque.
  • the maximum torque may be different at
  • the vehicle thus has an energy consumption c, where the values for the energy consumption c for the fields in the energy
  • the consumption matrix may be normalised with respect to all fields in the energy consumption matrix, so that a normalised energy consumption matrix is obtained.
  • the value for the energy consumption c for the fields is calculated based on the vehicle saving values within a torque area, for example 85-98% of the maximum torque, and within an engine speed area, for example 1,240-1,320 rpm.
  • the utilisation device is arranged to present the said energy consumption matrix graphically. Such a presentation may be made in a great number of ways, for example through display on a screen, through printout on paper or in another manner for display which is known to a person skilled in the art.
  • the energy consumption matrix which is provided by the present invention has one advantage in that it shows directly at which engine speed and torque the vehicle consumes its energy. For example, with the help of the energy consumption matrix it is realised that the vehicle consumes a relatively small amount of its energy when idle, but that it consumers a relatively large amount of its energy at high load, that is, at high torque .
  • the calculation device is arranged to determine the energy consumption c based on a load matrix. This load matrix shows time used per engine speed and torque and is based on
  • Figure 3 shows such a load matrix.
  • the engine speed is provided, as an engine speed
  • the torque is provided, as an engine torque, which is used for the respective engine speed an relation to a maximum torque.
  • the maximum torque may be different at different engine speeds.
  • the vehicle thus has been used for a period of time t, where the value for the period of time t for the field in the load matrix may be normalised with regard to all fields in the load matrix, through which a normalised load matrix is obtained.
  • the value for the t fields is calculated by the vehicle saving values within a torque area, for example 85-98% of the maximum torque, and within an engine speed area, for example 1,240- 1,320 rpm.
  • the vehicle has, for example, spent a relatively long period of time idling, which may mean that an analysis of the load matrix may lead to the erroneous conclusion that the energy consumption c for this idling is large.
  • the correct conclusion may be drawn, namely that the energy consumption c for the idling is relatively small.
  • the load matrix is analysed, it also looks as though relatively little energy is consumed with a high load, i.e. high torque, even though the energy consumption matrix according to the present invention clearly indicates that a relatively large part of the energy consumption c occurs with high loads.
  • the calculation device uses an engine clam to convert the time used specified in the load matrix to energy consumption c in the energy consumption matrix.
  • the engine clam comprises information related to consumed energy per time unit and per engine speed and torque.
  • the engine clam may specify the amount of fuel which the engine 101 consumes per injection into the engine with the respective torque and engine speed.
  • This amount of fuel may, for example, be obtained based on measurements of an engine in a cell, i.e. on measurements of an engine installed in a test cell for which the amount of injected fuel is measured to obtain values for the torques at corresponding engine speeds .
  • - c is the energy consumption in the form of fuel consumption for a field in the energy consumption matrix; and - t is the value for the corresponding field in the load matrix .
  • the utilisation device is arranged to use the determined energy consumption c on an assessment of how well a simulated use of the at least one vehicle corresponds with a real use of the at least one vehicle.
  • Simulations of the use of a vehicle may, for example, be used when vehicle specifications for vehicles are prepared, which is described in more detail below. Simulations may also be used, for example, in the further development of vehicles, driver training and other situations where it is advantageous to estimate how a vehicle is used and/or behaves in different driving conditions.
  • the utilisation device compares the energy consumption c S im for the simulated use with the energy consumption c ac t for the actual use. If there are differences between the simulated and the actual uses, the parameters for the simulated use are adjusted based on the comparison, so that the simulation becomes more similar to reality. Thus very realistic simulations are obtained.
  • the energy consumption c S i m for the simulated use of the vehicle may be determined based on operational data from an engine perspective and from a vehicle perspective, where the vehicle perspective may comprise a number of different parameters in the vehicle.
  • operational data related to the used vehicle speed, road inclination and/or weight for the vehicle may in many cases be used to provide reliable values for the energy consumption c S i m for the simulated use of the vehicle. For example, the simulations may then be carried out in cycles for different speed intervals. Once the simulations have been completed, for example, based at least on vehicle speed, road inclination and/or weight for the vehicle, the utilisation device may compare the energy consumption c s i m for the simulated use with the energy consumption c ac for the actual use.
  • this difference may be derived from traffic disturbances and/or the driver's behaviour which have impacted the actual use. Operational data related to the driver's behaviour may then be added to the continued simulations of the energy consumption c S i m -
  • the system is arranged according to the present invention in order to carry out a systematic selection of a specification for a first vehicle.
  • customer/buyer has relatively high requirements, which may correspond to engine specifications and tyre dimensions, may first be selected here. Subsequently, systematic simulations for performance related to other potential customer selections may be made. By first selecting components which are important to customers/buyers, and in relation to which customers/buyers often know what they want, the number of potentially suitable selections may be restricted. Thus, calculation-effective simulations are obtained, which are aimed at specifications in which customers/buyers with great likelihood are interested.
  • the vehicle specifications to be selected comprise a number of parameters related to at least one characteristic for the first vehicle.
  • the present invention may thus be used when an order and/or purchase of a vehicle is to be made, since vehicle specifications are necessary for the newly built vehicle which is to be ordered, or the used vehicle which is to be purchased, to have the characteristics requested by the buyer.
  • the present invention may, however, also be used in other situations where simulations of vehicle characteristics based on a number of parameters obtained from operational data are carried out.
  • the systematic selection of specifications of the first vehicle may, for example, be carried out so that the energy efficiency for the first vehicle is rewarded.
  • the specifications are selected based on an energy efficiency for the first vehicle, where the energy efficiency may be determined based on a second vehicle's actual use according to vehicle-specific operational data.
  • vehicle-specific operational data may here comprise cycles of operational data for a road section, where each one of these cycles comprises speed, road inclination and start/stop corresponding to the road section.
  • operational data related to vehicle speed show that the vehicle is often driven at high speeds
  • the parameters related to characteristics such as air resistance, gearing for the driveline, rolling resistance and driver support functions may be selected for the specifications based on this information about the speed use.
  • skirts, spoilers and other devices that impact air resistance may be selected based on operational data regarding speed.
  • Tyres may also be selected in order to provide a suitable rolling resistance for the speed used. The idea is thus that the new vehicle, for which
  • operational data for the second vehicle on which energy efficient selections for the vehicle specifications may be based. If, for example, operational data indicate that a high weight has been used previously, it is relatively likely that vehicle specifications for a vehicle with a high weight should be prepared. Similarly, the vehicle specifications should be prepared for high speeds if the operational data indicate that high speeds have been used previously. Thus, it is often a wise choice to select
  • the system may be adapted to prepare a number, e.g. 5 different suitable vehicle specifications, which are then presented to the customers/buyers.
  • a seller may, when these are presented, tell directly which specifications would be more energy optimal for the customers/buyers based on the operational data provided.
  • customers may appreciate the feeling that they may actually contribute with their own requests in the actual decision process. For example, a customer may have requests regarding the vehicle weight and/or transport time and deem these sufficiently important to be taken into consideration when the decision is made. Therefore, a presentation of a number of different specifications, which would all constitute suitable specifications for the
  • customer/buyer may be suitable in certain cases.
  • the simulation device is arranged to simulate how an
  • simulation device is, according to the present invention, installed to carry out the simulation based on the determined energy consumption c. With the help of the determined energy consumption c, it may be verified whether the simulation parameters used have the correct values. The simulation parameters may also be adjusted based on the determined energy consumption c, since the energy consumption c easily shows when most of the fuel is consumed and also what should be done to reduce the consumption.
  • the system is arranged to select the at least one second vehicle, so that the at least one second vehicle has been used in an
  • the system chooses to base the preparation of the vehicle specifications for other vehicles, which with high probability produces vehicle specifications that are well adjusted to the first vehicle's future use.
  • the at least one second vehicle may be selected so that it has driven on one or several routes on which it is planned that the first vehicle will be driven.
  • the at least one second vehicle may also be selected so that it has driven on one or several routes which in one or several respects are similar to the one or several routes on which it is planned that the first vehicle will be driven.
  • the system's collection device comprises a receiving device, an identification device and a collection device.
  • the receiving device is arranged to receive an input of identification information for the at least one second vehicle.
  • identification information may typically be a chassis number, a registration number, or some other information which is suitable for the purposes of vehicle identification.
  • the identification device is arranged to identify the at least one second vehicle based on the identification information, following which the collection device is arranged to collect operational data for the identified vehicle.
  • one or several registration numbers for one or several vehicles may be fed into the system's receiving device.
  • clients and/or buyers may specify a registration number of one of their previous vehicles, which the clients and/or buyers know has been used in a similar manner as the new vehicle, will be used following which operational data for this identified vehicle is collected to the system and may be used via the energy consumption c to determine the vehicle specifications.
  • the simulation device is installed for this embodiment by calculating a first simulation value through a first simulation based on the energy consumption and on at least one first parameter value for at least one of several parameters. This at least one first parameter value is here related to a first vehicle specification.
  • the simulation device is also installed to calculate a second simulation value through a second simulation based on the energy
  • a comparing device compares whether the simulation parameters used have the correct values and compares the first and second simulation values, following which an indication is provided as to whether the first vehicle specification or the second vehicle specification is suitable.
  • the suitable vehicle specifications may thus be provided based on a comparison of the first and second simulation values.
  • several vehicle specifications may be indicated as suitable.
  • a number of other simulation values are comprised in the at least one second simulation value, where each one of these several second simulation values is calculated based on the at least one respective second parameter value.
  • the comparing device compares the first simulation value with these several second simulation values. Subsequently, a predetermined number of vehicle specifications is identified as potentially suitable vehicle specifications based on the comparison. An indication of this predetermined number of potentially suitable vehicle specifications is then provided.
  • the first and the at least one second simulation values are related to fuel consumption.
  • the comparing device here decides a
  • the parameter i.e. the difference in fuel consumption between the first and the second simulation. Since the first and the second simulations are related to a first and a second vehicle specification, respectively, the
  • comparison will also indicate a difference in fuel consumption for each vehicle specifications for the energy consumption c which is used in the simulations.
  • the difference in fuel consumption may be indicated in a number of different ways, for example as a percentage, as litres per 100 km, as energy or as carbon dioxide emissions. Since fuel consumption is important both to the vehicle's total cost and to the
  • the first and the at least one second simulation values are related to an energy storage.
  • the term energy storage comprises essentially all devices which may store some sort of energy, such as a battery or capacitor, which may be loaded and store electric energy, a flywheel, which comprises a mass that may be set in rotation so that rotation energy is stored as the rotating mass, or a rubber band, which is untwisted to be able to emit the energy when the rubber band reverts to its original position. Energy may here, for example, be stored when braking in order to later be used in subsequent
  • accelerations which is typically used in e.g. hybrid cars.
  • the comparing device thus:
  • the comparing device determines at least whether there is a potential gain in energy storage.
  • a potential gain in energy storage depends on how the second vehicle has been driven. Generally, a large quantity of energy may be stored and recycled if a lot of braking is done. However, despite this it may be more energy efficient to drive the vehicle with less braking. At least the number and length of brakings and their suitability should be taken into consideration when the potential gain in energy storage is determined.
  • Each one of the parameters which are used in the simulations according to the present invention may, for example, be related to the one or several vehicle characteristics [, ] a gearing for a rear shaft, gearbox, engine, clutch, brake system, turbocharger, wheel type, distribution gearbox, battery, air resistance, rolling resistance, tyre type and exhaust purification system.
  • a tyre type is defined in this document by its pattern and/or rubber mixture.
  • the air resistance for the vehicle may, for example, be altered by adding/removing skirts, spoilers or other air resistance impacting devices in order to adjust the vehicle to a use within a certain speed interval.
  • the coherence between the vehicle specifications and the actual use may be improved .
  • the operational data upon which e.g. the load matrix is based may comprise a utilisation period for the respective at least one gear in the gearbox 103 in the at least one other vehicle.
  • the operational data here specify which gears have been used and how long the different gears have been used in the at least one other vehicle.
  • Operational data for the utilisation period for gears may, according to one embodiment, be stored in connection with the gearbox 103 in the at least one other vehicle.
  • Operational data for the utilisation period for gears may according to one embodiment also be calculated, for example, based on the load matrix, which comprises values corresponding to time periods when the at least one other vehicle has used different engine speeds and different engine torques.
  • operational data are thus provided to the system according to the present invention in the form of at least one load matrix, where the at least one load matrix comprises values corresponding to time periods during which the at least one other vehicle has used different engine speeds and different engine torques.
  • Operational data may further comprise a utilisation period for the respective at least one engine speed which is provided to a gearbox in the at least one other vehicle.
  • operational data specify a description of which engine speeds have been used by the other vehicle and for how long these different engine speeds have been used in the at least one other vehicle.
  • the operational data may further comprise a utilisation period for the respective at least one engine speed which is provided to the gearbox 103 in the at least one other vehicle, i.e. a description of which engine torques have been used and for how long these engine torques were used.
  • the operational data may further comprise at least one fuel consumption for the engine 101 in the at least one other vehicle.
  • the operational data may further comprise a utilisation period for the respective at least one engine torque per used gear in the at least one other vehicle, i.e. a description of which engine torques have been used for the different gears and for how long these engine torques were used. This embodiment provides a good resolution for the engine torque since it is divided per gear.
  • the operational data may further comprise at least one loss for a driveline in the at least one other vehicle.
  • the operational data may further comprise at least one road inclination a and at least one vehicle speed for road sections where the at least one other vehicle has been used, typically for road sections along routes where the first vehicle is planned to be used. Based on the road inclination a and the speed, the driving resistance may be calculated, i.e. the forces that brake the vehicle's progress.
  • the operational data may further comprise at least one used speed profile for the at least one other vehicle.
  • These one or several speed profiles may be used to carry out one or several simulations for different speed intervals. These simulations may be carried out in cycles comprising start/stop, speeds and road inclination for a road section. These cycles may be market adapted, so that e.g. a cycle corresponds to a speed interval and/or a road inclination profile for a country or a region with special speed limits and/or topography, such as Germany .
  • Operational data may further comprise at least one used weight for the at least one other vehicle. Often a new vehicle takes over an old route, so that the weight may often be similar to the ones in the collected operational data.
  • the operational data may further comprise at least one
  • turbocharger there are
  • turbochargers which are specially adapted for use at high altitudes, which may be selected in the vehicle
  • Engine characteristics may also be determined based on at least one elevation above sea level, since
  • operational data comprise a vehicle load for the other vehicle.
  • the vehicle load may, together with the speed for the other vehicle, be used in order to base the simulation on.
  • the vehicle load may here preferably be stored as a vehicle load per speed in order to be used easily for simulations.
  • Load/vehicle load in this document means the mass or weight for the items transported by the vehicle.
  • the load/vehicle load is, for example, related to the items in the vehicle's trunk or on the vehicle's loading platform.
  • the computer program usually consists of a part of a computer program product 403, where the computer program product comprises a suitable digital storage medium on which the computer program is stored.
  • the said computer readable medium consists of a suitable memory, for example: ROM (Read- Only Memory), PROM (Programmable Read-Only Memory), EPROM
  • FIG. 4 shows schematically a control device 400.
  • the control device 400 comprises a calculation device 401, which may consist of essentially a suitable type of processor or
  • the calculation device 401 is connected to a memory unit 402 installed in the control device 400, which provides the calculation device 401 with e.g. the stored program code and/or the stored data which the calculation device 401 needs in order to be able to carry out calculations.
  • the calculation device 401 is also set up to store interim or final results of calculations in the memory device 402.
  • control device 400 is equipped with devices 411, 412, 413, 414 for receiving and sending of input and output signals, respectively.
  • These input and output signals may contain wave shapes, pulses, or other attributes, which may be detected by the devices 411, 413 for the receipt of input signals as information and may be converted into signals that may be processed by the calculation device 401. These signals are then provided to the calculation device 401.
  • the devices 412, 414 for sending of output signals are arranged to
  • Each one of the connections to the devices for receipt and sending of input and output signals may consist of one or several of a cable; a data bus, such as a CAN (Controller Area Network) bus, a MOST (Media Oriented Systems Transport) bus, or any other bus configuration; or of a wireless connection.
  • a data bus such as a CAN (Controller Area Network) bus, a MOST (Media Oriented Systems Transport) bus, or any other bus configuration
  • a wireless connection such as a CAN (Controller Area Network) bus, a MOST (Media Oriented Systems Transport) bus, or any other bus configuration
  • CAN Controller Area Network
  • MOST Media Oriented Systems Transport
  • control systems in modern vehicles consist of a communications bus system consisting of one or several
  • ECUs electronice control devices
  • controllers controllers
  • communications buses to connect a number of electronic control devices (ECUs) , or controllers, and different components localised on the vehicle.
  • ECUs electronice control devices
  • Such a control system may comprise a large number of control devices, and the responsibility for a specific function may be distributed among more than one control device.
  • Vehicles of the type shown thus often comprise significantly more control devices than as displayed in figure 4, which is well known to a person skilled in the art within the technology area.
  • the present invention is implemented in the embodiment shown in the control device 400.
  • the invention may also be
  • the invention pertains to a motor vehicle 1, for example a truck or bus, comprising at least one system for the use of

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Abstract

La présente invention concerne un système pour l'utilisation de données opérationnelles provenant d'au moins un véhicule, comportant : un dispositif de collecte agencé pour la collecte desdites données opérationnelles, lesdites données opérationnelles comprenant une information concernant la manière dont ledit au moins un véhicule a été utilisé ; un dispositif de calcul agencé, sur la base desdites données opérationnelles, pour déterminer une consommation d'énergie c sous la forme d'une matrice de consommation d'énergie pour ledit au moins un véhicule en fonction de régime et de couple moteur pour la transmission dans ledit au moins un véhicule ; et un dispositif d'utilisation agencé pour utiliser ladite consommation d'énergie c.
EP13846693.3A 2012-10-17 2013-10-17 Détermination de la consommation d'énergie pour un véhicule Withdrawn EP2909816A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1251176A SE536698C2 (sv) 2012-10-17 2012-10-17 Fastställande av energiåtgång
PCT/SE2013/051213 WO2014062127A1 (fr) 2012-10-17 2013-10-17 Détermination de la consommation d'énergie pour un véhicule

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EP2909816A1 true EP2909816A1 (fr) 2015-08-26
EP2909816A4 EP2909816A4 (fr) 2016-07-06

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US8543287B2 (en) * 2009-09-25 2013-09-24 Cross Chasm Technologies Inc. System, method and computer program for simulating vehicle energy use

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SE1251176A1 (sv) 2014-04-18
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