CN101397939B - Fuel consumption saving management system - Google Patents

Abstract

This invention relates to a fuel-saving management system that allows fuel-saving management and associated driver assistance to be conducted very smoothly. The constituent elements of this system include the following mounted on a vehicle: information detectors (11 to 15) for detecting various information on the driving state of the vehicle, an information processor (3) for, in addition to processing the information detected by the information detectors, generating a warning when processed information satisfies required warning conditions, and an information storage device (4) for storing the processed information. In this system, when either a time during which the processed information is maintained to satisfy the required warning conditions, or an elapsed time of the processed information exceeds a previously set time, the information processor stores the occurrence of this overtime event into the information storage device. A setter (21) for allowing modification of the required warning conditions, and a printer (6) that can output the information relating to the processed information are also mounted. In a different system configuration, an information processor (3) for calculating the cumulative traveling distance through which the vehicle has traveled in a zero accelerator angle state without using an auxiliary brake, and an information storage device (4) for storing the cumulative traveling distance are mounted in a vehicle-mounted analyzer (1) and/or a vehicle owner/user company's data analyzer (32).

Description

Fuel consumption conservation management system

The application is that application number is 200480034033.2, the applying date is on November 17th, 2004, denomination of invention is divided an application for the application for a patent for invention of " fuel consumption conservation management system ".

Technical field

The present invention relates to a kind of fuel consumption conservation management system that is suitable for vehicles such as truck.

Background technique

In the past, the fuel consumption conservation management system that for example is used for vehicles such as truck mainly can roughly be divided into two kinds.In a kind of fuel consumption conservation management system therein, vehicle-mounted analyzer is stored in storage according to the signal from various sensors with data such as the speed of a motor vehicle, engine speed, fuel flow rates.After walking finished, the various data that driver, the caretaker that travels etc. will be stored in this storage stored storage mediums such as storage card into.Then, with the walking data that are stored in this storage card etc. be input to by cause or the cause institute analyzer prepared of vehicular manufacturer, carry out the detail analysis of walking states according to these data.

The caretaker that travels can utilize these detailed data of basis and predetermined warning values such as the predefined speed of a motor vehicle, engine speed, fuel flow rate, carry out each driver and carry out the management what kind of travels, simultaneously, the driver can learn the travelling state of oneself according to objective resolution data, makes great efforts with travelling of fuel consumption conservation for greater safety by (with reference to patent documentation 1 and 2).Yet, the problem that this system exists the introducing of cause institute analyzer to need higher cost, small-scale thing dealer to be difficult to adopt.

Another kind of fuel consumption conservation management system can be described as simple and easy fuel consumption conservation management system, by vehicle-mounted analyzer monitor vehicle speed, engine speed etc., surpass the occasion of predetermined warning value at them, give a warning to the driver with buzzer or simulated sound (the following buzzer etc. that also claims).Therefore, the driver can learn the travelling state of oneself at that time by the such form of warning, corrected travelling immediately.

In addition, the time, the number of times that surpass this predetermined warning value are stored in storage, as required, the caretaker that travels can learn its overtime by cause institute, vehicular manufacturer's cause institute analyzer, surpass number of times, like this, can in certain scope, carry out fuel consumption conservation management and the assistance to the driver (with reference to patent documentation 3 and 4) for this purpose.In addition, this simple and easy fuel consumption conservation management system also can only be made of vehicle-mounted analyzer, from cost consideration, is the formation of the as easy as rolling off a log employing of small-scale thing dealer, can expect big development from now on.

Patent documentation 1: Japanese kokai publication hei 10-69555 communique

Patent documentation 2: TOHKEMY 2003-115065 communique

Patent documentation 3: Japan opens flat 4-110924 communique in fact

Patent documentation 4: TOHKEMY 2000-87776 communique

Like this, in the fuel consumption conservation management system in above-mentioned past, the driver can learn the travelling state of oneself at that time by such forms that gives a warning such as buzzers, on the other hand, vehicle-mounted analyzer storage surpasses time, the number of times of predetermined warning value, according to necessity, to the caretaker's report of travelling.Therefore, the driver soon, the generation of warning is just directly reported to the caretaker that travels after correcting own travelling state at that time.Therefore, very big in the driver side mental burden of being managed, fuel consumption conservation management and the problem to driver's assistance for this purpose can not be successfully carried out in generation.

In addition, in the fuel consumption conservation management system in above-mentioned past, vehicle-mounted analyzer monitor vehicle speed, engine speed etc. surpass the occasion of predetermined warning value at it, are given a warning to the driver by buzzer etc.Yet, in order to carry out the setting change of this predetermined warning value, must temporarily pull down vehicle-mounted analyzer, be sent to cause institute, vehicular manufacturer's change, or carry out the setting change of the predetermined warning value of vehicle-mounted analyzer by the storage card of having stored this predetermined warning value in advance from vehicle.Therefore, can not be rapidly and easily change the setting of the predetermined warning values such as the speed of a motor vehicle that are stored in vehicle-mounted analyzer, fuel consumption conservation management and the problem to driver's assistance for this purpose can not be successfully carried out in existence.

On the other hand, the fuel consumption conservation management system in above-mentioned past finishes the back in walking and stores the various data that the speed of a motor vehicle etc. is stored in storage storage mediums such as into storage card by driver, the caretaker that travels etc., with the walking data that are stored in this storage card etc. be input to cause or cause institute analyzer that the vehicular manufacturer had, the detail analysis of walking according to this resolution data.Therefore, driver, the caretaker that travels are obtaining to need certain fate before this resolution data.Therefore, driver, the caretaker that travels can not be in the process of walking or just seen this data after the walking, and the assurance of travelling state becomes evening, exist to be difficult to by carrying out fuel consumption conservation management and the problem to driver's assistance for this purpose with the actual travel contrast.

In addition, in the fuel consumption conservation management system in above-mentioned past, the driver can learn the travelling state of oneself at that time by the form that is given a warning by buzzer etc., but for example drive into and gone several inferior details, analyze by cause institute, vehicular manufacturer's cause institute analyzer after still must waiting for about such being out of the line.In addition, also there are the introducing of this cause institute analyzer and the problem that utilization needs higher cost, small-scale thing dealer to be difficult to adopt.

On the other hand, as slowing down when the vehicle to run, gas pedal is returned, the distance of the Reduced Speed Now of walking under minimum fuel spray regime, undertaken by engine brake is long more, then big more to the fuel consumption conservation contribution.Yet, having equipped with exhaust brake, retarder etc. is in the vehicle of auxiliary brake of representative, can obtain good braking characteristic by the start of this auxiliary brake, so, can see and carry out the anxious anxious tendency of quickening of slowing down and accompanying therewith repeatedly, become the major reason that fuel cost worsens.

In the fuel consumption conservation management system in above-mentioned past, particularly in the vehicle of having equipped this auxiliary brake, be used for positively monitoring the logic setting of the Reduced Speed Now of implementing by engine brake, have the problem of shortcoming as the of paramount importance key element of fuel consumption conservation management system.

Summary of the invention

The present invention makes in order to solve such problem, and its purpose is to provide a kind of fuel consumption conservation management system, and this fuel consumption conservation management system can very successfully carry out fuel consumption conservation management and the assistance to the driver for this purpose.Say in more detail, its purpose is to provide a kind of fuel consumption conservation management system that alleviates driver side to the mental burden of warning, a kind of can be rapidly and easily change the fuel consumption conservation management system of the setting of the predetermined warning conditions such as predetermined warning value such as the speed of a motor vehicle that are stored in vehicle-mounted analyzer, a kind of driver, the caretaker that travels can learn the travelling state of this moment immediately and correctly on vehicle, can further improve driver's fuel consumption conservation consciousness, also can only comprise analysis in interior a series of fuel consumption conservation management simultaneously by vehicle-mounted analyzer, the fuel consumption conservation management system that small-scale thing dealer can more easily introduce, perhaps a kind of particularly exactly monitor equipment the Reduced Speed Now of being undertaken by engine brake of vehicle of auxiliary brake, can increase substantially the fuel consumption conservation management system of the precision of fuel cost management.

In order to achieve the above object, the means that the present invention adopts are to provide a kind of fuel consumption conservation management system, and this fuel consumption conservation management system has information detecting unit, information process unit, reaches information memory cell on vehicle; This information detecting unit detects the information relevant with the walking states of above-mentioned vehicle; This information process unit is handled the detected information of above-mentioned information detecting unit, gives a warning when this processing information has satisfied predetermined warning condition; This information memory cell is stored above-mentioned processing information; Wherein: above-mentioned information process unit has surpassed predetermined set during the time in the time of the satisfied predetermined warning condition of above-mentioned processing information or the transit time of above-mentioned processing information, makes above-mentioned information memory cell store the generation that this surpasses.

Like this, it or not the information memory cell that stores into that when warning takes place, will warn, but in case such the travelling that gives a warning the back and satisfy this predetermined warning condition to the driver surpasses the occasion that predetermined set time ground continues, what just will surpass stores information memory cell into, thereby do not make the driver feel mental burden, the chance of travelling that corrects oneself can be provided.

In addition, in order to achieve the above object, the means that the present invention adopts are to provide a kind of fuel consumption conservation management system, and this fuel consumption conservation management system has information detecting unit and information process unit on vehicle; This information detecting unit detects the information relevant with the walking states of above-mentioned vehicle; This information process unit is handled the detected information of above-mentioned information detecting unit, gives a warning when this processing information satisfies predetermined warning condition; Wherein: on vehicle, also have the setting device that can change this predetermined warning condition.

By the setting device that can change predetermined warning condition is set on vehicle, thereby occasion in the setting of the predetermined warning condition of carrying out fuel consumption conservation management system change, do not need temporarily to pull down vehicle-mounted analyzer from vehicle, be sent to cause institute, vehicular manufacturer, or change the setting of the predetermined warning condition of vehicle-mounted analyzer by the storage card of storing this predetermined warning condition in advance.

In order to achieve the above object, the means that the present invention adopts are to provide a kind of fuel consumption conservation management system, and this fuel consumption conservation management system has information detecting unit, information process unit, reaches information memory cell on vehicle; This information detecting unit detects the information relevant with the walking states of vehicle; This information process unit is handled the detected information of information detecting unit, gives a warning when this processing information satisfies predetermined warning condition; This information memory cell stores processor information; Wherein: on vehicle, also have setting device, above-mentioned information process unit surpasses predetermined set during the time in the time of the satisfied predetermined warning condition of processing information or the transit time of above-mentioned processing information, store information memory cell into what this surpassed, setting device can change predetermined warning condition and/or predetermined set time.Like this, above-mentioned 2 effects can be played simultaneously, fuel consumption conservation management and assistance for this purpose can be successfully carried out the driver.

In above-mentioned fuel consumption conservation management system, preferably comprise accelerator open degree about the information of the walking states of vehicle.Accelerator open degree produces big influence to the fuel cost of vehicle.Therefore, by obtaining throttle opening information, manage thereby can be used for various fuel consumption conservations.

In this fuel consumption conservation management system, comprise accelerator open degree and/or as the accelerator open degree change of the time per unit variation of accelerator open degree as processing information, then better.By sending to the driver based on accelerator open degree, particularly to the warning of the bigger accelerator open degree change of the influence of the fuel cost in the expressway walking, or the generation that the information memory cell storage is surpassed, thereby can carry out the fuel consumption conservation management exactly.

In above-mentioned fuel consumption conservation management system, have as vehicle and the speed of a motor vehicle can be adjusted to automatically predetermined speed or the speed limiting device below it, information process unit carries out the warning relevant with above-mentioned accelerator open degree when not start of speed limiting device, then better.When the speed limiting device start, the pedal even the driver steps on the throttle, accelerator open degree become excessive, also by speed limiting device fuel are no more than with the corresponding emitted dose of predetermined speed ground and spray.Get final product when therefore, relevant with accelerator open degree warning to the driver etc. is in not start of speed limiting device.Like this, by avoiding useless warning, can get rid of the unplessantness displeasure that the driver is produced.

In this fuel consumption conservation management system, preferably processing information comprises Ordinary Rd processing information and expressway processing information.For example in the expressway walking, then flurried sometimes as inappropriate with the vehicle headway of front truck, slow down repeatedly, quicken once more to catch up with the action of front truck.Such travelling is called wavy travelling, this wavy problem of travelling on existing safely, and particularly become the maximum reason that the fuel cost in the expressway walking worsens.Like this, in Ordinary Rd walking and expressway walking, the viewpoint difference of fuel consumption conservation management, corresponding therewith, fuel cost is resolved also difference of needed information.For this reason, can change the setting of being scheduled to warning condition to each information of Ordinary Rd walking and expressway walking by making, the generation that the information memory cell storage is surpassed, thus can carry out the fuel consumption conservation management more accurately.

In this fuel consumption conservation management system, as the Ordinary Rd processing information comprise the speed of a motor vehicle, engine speed, accelerator open degree, idling in the transit time any or more than or equal to two combination in any, then better.Warning when information process unit can carry out the Ordinary Rd walking exactly according to these processing informations etc.

In this fuel consumption conservation management system, constitute even more ideally like this, that is, information process unit detects fuel flow rate as the information relevant with the walking states of vehicle, when fuel flow rate during above predetermined set value, carries out the warning relevant with above-mentioned engine speed.When the engine brake start, even engine speed improves, satisfies predetermined warning condition, also because motor is in minimum fuel spray regime, so, fuel cost is worsened.Therefore, there is no need to give a warning etc.,, can get rid of the unplessantness displeasure that the driver is produced by avoiding useless warning to the driver in such occasion.

In above-mentioned fuel consumption conservation management system, as the expressway processing information comprise the change of the speed of a motor vehicle, accelerator open degree, speed of a motor vehicle change, the most high-grade do not use in transit time, the auxiliary brake utilization rate any or more than or equal to two combination in any, then better.Warning when information process unit can carry out the expressway walking exactly according to these processing informations etc.

In this fuel consumption conservation management system, constitute even more ideally like this, that is, information process unit detects accelerator open degree as the information relevant with the walking states of vehicle, when accelerator open degree during above predetermined set value, carries out the warning relevant with the above-mentioned speed of a motor vehicle.For example when the descending walking at expressway, even descending grade improves the speed of a motor vehicle, satisfy predetermined warning condition, little as accelerator open degree, then Shi Ji fuel injection amount is few, so, fuel cost is worsened.Therefore, there is no need to give a warning etc.,, can get rid of the unplessantness displeasure that the driver is produced by avoiding useless warning to the driver in such occasion.

In above-mentioned fuel consumption conservation management system, what preferably the changeable warning of information process unit took place has or not, setting device can be set for and make information process unit can carry out this switching, and information process unit is when be set at can carry out this switching the time, switch to the generation that does not have warning by setting device.In addition, also need to make the driver can switch to the state that does not take place to warn according to the walking states of vehicle.Yet,, produce the danger that can not carry out suitable fuel consumption conservation management in case make the driver can freely carry out this switching., be set at can carry out this switching the time when the caretaker that travels waits by setting device by making, the driver just switches to does not have the generation state of warning, thereby can positively get rid of such danger for this reason.

In order to achieve the above object, the means that the present invention adopts are to provide a kind of fuel consumption conservation management system, and this fuel consumption conservation management system has information detecting unit, information process unit, reaches information memory cell on vehicle; This information detecting unit detects the information relevant with the walking states of vehicle; This information process unit is handled information; Processing information after this information memory cell stored information processing unit processes; Wherein: the printer that on vehicle, has the exportable information relevant with the processing information that is stored in information memory cell.

By printer is set on vehicle like this, driver, the caretaker that travels can correctly understand travelling state at this moment immediately and by the form that prints on vehicle.In addition, also can only comprise analysis in interior a series of management, particularly need not introduce, the cause institute analyzer of the cost of having relatively high expectations when using at equipment by vehicle-mounted analyzer.

In this fuel consumption conservation management system, preferably information process unit gives a warning when above-mentioned processing information satisfies predetermined warning condition, and satisfy the time of predetermined warning condition or the transit time of above-mentioned processing information surpasses predetermined set during the time at processing information, what will surpass stores information memory cell into, exportable generation and/or the relevant information of the above-mentioned generation that surpasses with above-mentioned warning of printer.

It or not the information memory cell that stores into that when warning takes place, will warn, but in case such the travelling that gives a warning the back and satisfy this predetermined warning condition to the driver surpasses the occasion that predetermined set time ground continues, what just will surpass stores information memory cell into, thereby do not make the driver feel mental burden, the chance of travelling that corrects oneself can be provided.The generation that surpasses as can confirming with the form that prints immediately on vehicle, then driver, the caretaker that travels can further improve driver's fuel consumption conservation consciousness learning and the relevant travelling state that surpasses of this moment at that time.

In this fuel consumption conservation management system, calculate the above-mentioned frequency that surpasses as information process unit, calculate above incidence rate according to the frequency that surpasses, when this surpasses incidence rate above predetermined set value, from the information relevant of printer output, showing warning label, then better with processing information.Like this, by announcement mark that each processing information table is warned, thereby can make the driver learn that in moment the surpass incidence rate relevant with which processing information surpasses predetermined set value from the output of printer.For example, should surpass incidence rate be relative vehicle travel distance surpass incidence rate.

In above-mentioned fuel consumption conservation management system, preferably information process unit calculates the specific fuel consumption of vehicle, the exportable specific fuel consumption of printer.The specific fuel consumption past of vehicle can not be learnt on vehicle, must be waited for that later cause is resolved etc.Yet, as can further improve driver's fuel consumption conservation consciousness from the printer output specific fuel consumption on the vehicle.

In above-mentioned fuel consumption conservation management system, the print switch that travels and operate when beginning switch and printer output of operation when preferably also having vehicle driving and beginning, information process unit is stored in the wiping and relevant information the restarting in the storage of information memory cell with processing information of the information relevant with processing information of information memory cell when operational drive begins switch, and, be stored in the wiping of the information relevant of information memory cell during print switch with processing information in operation.

Like this, making the beginning switch that travels have wiping of the information relevant that is stored in information memory cell and in the function of restarting of the storage of information memory cell with processing information, and, print switch had be stored in the function of wiping of the information relevant of information process unit with processing information, thereby do not need to be provided with separately the switch of wiping of the information relevant that is stored in information memory cell, can realize the reduction of manufacture cost and the simplification of switching manipulation with processing information.

In above-mentioned fuel consumption conservation management system, be preferably in and also have setting device on the vehicle, this setting device can change predetermined warning condition and/or the setting of predetermined set time, and printer is exportable to have changed predetermined warning condition and/or the predetermined set time set by this setting device.

By the setting device that can change predetermined warning condition is set on vehicle like this, thereby occasion in the setting of the predetermined warning condition that changes fuel consumption conservation management system, do not need temporarily to pull down vehicle-mounted analyzer from vehicle, be sent to cause institute, the vehicular manufacturer changes setting, or changes the setting of the predetermined warning condition of vehicle-mounted analyzer by storage card of having stored this predetermined warning condition in advance.In addition, as can be from this setting changing of printer output on the vehicle predetermined warning condition, predetermined set time, then can confirm their whether correctly inputs immediately by the form that prints.

In order to achieve the above object, the means that the present invention adopts are to provide a kind of fuel consumption conservation management system, and this fuel consumption conservation management system being provided with is carried out the vehicle-mounted analyzer and/or the cause institute analyzer of the parsing relevant with the fuel cost of the vehicle with auxiliary brake; Wherein: have information detecting unit at vehicle-mounted analyzer, this information detecting unit detects fuel flow rate and/or the accelerator open degree and the information relevant with the use of auxiliary brake of vehicle; Have information process unit and information memory cell at above-mentioned vehicle-mounted analyzer and/or cause institute analyzer; This information process unit is according to above-mentioned fuel flow rate and/or accelerator open degree and the information relevant with the use of above-mentioned auxiliary brake, calculates the accumulative total travel distance of not walking under the user mode at accelerator open degree nought state and auxiliary brake; The accumulative total travel distance that this information memory cell stored information processing unit calculates.

As described above, in being provided with the vehicle of auxiliary brake, make the distance of Reduced Speed Now that gas pedal is returned, walked under minimum fuel spray regime, that undertaken by engine brake long more, then big more to the fuel consumption conservation contribution.Yet, during this period,, become useless deceleration as auxiliary brakes such as use exhaust brakes, in addition, the pedal that needs correspondingly step on the throttle once more therewith quickens, and becomes the very major reason that fuel cost worsens.Therefore, by returning this gas pedal, and calculate do not use auxiliary brake ground walking the accumulative total travel distance, thereby can monitor the Reduced Speed Now of being undertaken by engine brake exactly, the resolution data that provides relative fuel consumption conservation to travel best to driver, the caretaker that travels.

In this fuel consumption conservation management system, the accelerator open degree nought state preferably is made as at fuel flow rate during less than predetermined set value and/or accelerator open degree when being roughly zero.Returning the occasion of gas pedal, for example in diesel engine, becoming fuel zero and spray, but in fact the non-vanishing occasion of the demonstration of fuel flow meter is more by engine braking state walking.In addition, in the petrol engine car, exist certain fuel to spray often.Therefore, during the predetermined set value that will the minimum fuel flow rate less than by approximate vehicle to run the time obtains and/or accelerator open degree when being roughly zero as decision condition, thereby can correctly capture the accelerator open degree nought state of vehicle substantially.

In this fuel consumption conservation management system, such formation is better, promptly, vehicle has the automatic economy cruising system that the speed of a motor vehicle can be adjusted into automatically preset vehicle speed, when automatic economy cruising system start such as fuel flow rate less than predetermined set value, then information process unit is made as the accelerator open degree nought state.When the start of automatic economy cruising system, because the driver does not carry out accelerator pedal operation, so, be difficult to judge the accelerator open degree nought state according to accelerator open degree.Therefore, in this occasion, need to be made as the accelerator open degree nought state during less than predetermined set value when fuel flow rate.

In above-mentioned fuel consumption conservation management system, the information detecting unit that preferably also has the speed of a motor vehicle that detects vehicle, the transit time of user mode walking does not calculate the accumulative total travel distance to information process unit according to the detected speed of a motor vehicle of information detecting unit with by accelerator open degree nought state and auxiliary brake.As the information detecting unit that detects the speed of a motor vehicle, vehicle is general whole to have vehicle speed sensor, and it is the simplest and correct to obtain the accumulative total travel distance by it.

In above-mentioned fuel consumption conservation management system, be preferably in vehicle-mounted analyzer and have printer, the accumulative total travel distance of the exportable information memory cell storage of this printer.Like this, the driver, the caretaker that travels can be at travelling state and actual walking contrast that arbitrarily constantly will this moment, rapidly and correctly understand the travelling state of this moment, can further improve the consciousness that driver etc. improves fuel cost.

Have information detecting unit, information process unit on the fuel consumption conservation management system vehicle of the present invention, reach information memory cell; This information detecting unit detects the information relevant with the walking states of vehicle; This information process unit is handled the detected information of information detecting unit, gives a warning when this processing information satisfies predetermined warning condition; This information memory cell is stored above-mentioned processing information; Wherein: information process unit surpasses predetermined set during the time in the time of the satisfied predetermined warning condition of above-mentioned processing information or the transit time of above-mentioned processing information, makes information memory cell store the generation that this surpasses.Therefore, can alleviate the mental burden of driver side to warning.

In addition, fuel consumption conservation management system has information detecting unit and information process unit on vehicle; This information detecting unit detects the information relevant with the walking states of vehicle; This information process unit is handled the detected information of information detecting unit, gives a warning when this processing information satisfies predetermined warning condition; Wherein: on vehicle, also have the setting device that can change this predetermined warning condition.Therefore, can be rapidly and easily change the setting of the predetermined warning conditions such as predetermined warning value such as the speed of a motor vehicle that are stored in vehicle-mounted analyzer.

In addition, fuel consumption conservation management system has information detecting unit, information process unit, reaches information memory cell on vehicle; This information detecting unit detects the information relevant with the walking states of vehicle; This information process unit is handled information; Processing information after this information memory cell stored information processing unit processes; Wherein: on vehicle, have the exportable printer that is stored in the processing information of information memory cell.Therefore, driver, the caretaker that travels can understand travelling state at this moment immediately and correctly on vehicle, can further improve driver's fuel consumption conservation consciousness, simultaneously, also can only comprise analysis in interior a series of fuel consumption conservation management by vehicle-mounted analyzer, the thing dealer can more easily introduce on a small scale.

In addition, have information detecting unit at vehicle-mounted analyzer, this information detecting unit testing equipment fuel flow rate, the either party in the accelerator open degree or the both sides of vehicle and the information relevant of auxiliary brake with the use of auxiliary brake; Have information process unit and information memory cell at vehicle-mounted analyzer and/or cause institute analyzer; This information process unit calculates the accumulative total travel distance of not walking under the user mode at accelerator open degree nought state and auxiliary brake; The accumulative total travel distance that this information memory cell storage is calculated by information process unit.Therefore, can monitor exactly the vehicle of particularly having equipped auxiliary brake, by the Reduced Speed Now that engine brake carries out, can increase substantially the precision of fuel cost management.

Therefore, this fuel consumption conservation management system produces and can very successfully carry out fuel consumption conservation management and the excellent results to driver's assistance for this purpose.

Description of drawings

Fig. 1 is the block diagram that fuel consumption conservation management system of the present invention is shown.

Fig. 2 is the block diagram that another fuel consumption conservation management system different with Fig. 1 is shown.

Fig. 3 is that the figure that reports is set in the warning that printer is shown.

Fig. 4 is the figure that the time-triggered report of printer is shown.

Fig. 5 is the figure that adds up to report that surpasses that printer is shown.

Fig. 6 is the figure that is used to illustrate operation common occasion, that travel beginning switch and print switch.

Fig. 7 is used to illustrate travelled the day before yesterday forget the figure of operation occasion, that travel beginning switch and print switch of pressing print switch when finishing.

Fig. 8 is used to illustrate the figure that forgot operation occasion, that travel beginning switch and print switch of pressing the beginning switch that travels when travelling beginning the same day.

Fig. 9 is the figure of switching that is used to illustrate the generation of warning.

Figure 10 is the flow chart that the warning supervision of this fuel consumption conservation management system is shown.

Figure 11 illustrates the flow chart that the walking among Figure 10 is handled.

Figure 12 illustrates the flow chart that the Ordinary Rd among Figure 11 is handled.

Figure 13 is the flow chart that the Ordinary Rd processing of continuous Figure 12 is shown.

Figure 14 is the flow chart that the expressway processing I among Figure 11 is shown.

Figure 15 is the flow chart that the expressway processing I of continuous Figure 14 is shown.

Figure 16 is the flow chart that the expressway processing I of continuous Figure 15 is shown.

Figure 17 is the flow chart that the expressway processing II among Figure 11 is shown.

Figure 18 is the flow chart that the expressway processing II of continuous Figure 17 is shown.

Figure 19 is the flow chart that the expressway processing II of continuous Figure 18 is shown.

Figure 20 is the flow chart that the expressway processing II of continuous Figure 19 is shown.

Figure 21 illustrates the flow chart that the idling among Figure 10 is handled.

Figure 22 is the flow chart that the Reduced Speed Now supervision of this fuel consumption conservation management system is shown.

Figure 23 illustrates the flow chart that another Reduced Speed Now different with Figure 22 monitors.

Embodiment

Describe the optimised form that is used to implement fuel consumption conservation management system of the present invention in detail below with reference to Fig. 1～Figure 23.

As shown in Figure 1, vehicle-mounted analyzer 1 is equipped on the vehicles such as truck of for example having equipped auxiliary brake, has various information detecting unit such as analyzer main body 2, vehicle speed sensor 11, reaches setting device 21.The storage (information memory cell) 4 of the processing information after CPU (information process unit) 3, the storage that analyzer main body 2 has a processing information handled by CPU, the loudspeaker 5 that gives a warning by buzzer or simulated sound according to instruction from CPU, will be stored in storage information output vehicle-mounted printer 6 and be used for the accelerator open degree A of this moment is notified on accelerator open degree display device 7 from vision ground to the driver.Vehicle-mounted printer 6 also can be set to other position from 2 separation of analyzer main body.In addition, warning also can be can't help loudspeaker 5 and carried out, and carries out but lighted by lamp.

Be equipped on the occasion that vehicle, this ECU10 are electrically connected to all vehicle speed sensor 11 as information detecting unit, engine rotation speed sensor 12, accelerator open degree sensor 13, fuel flow sensor 14, auxiliary brake start part 15 at ECU10, be electrically connected ECU10 and analyzer main body 2.On the other hand, at vehicle is the occasion of the non-lift-launch car of ECU, as shown in Figure 2, configuration is electrically connected it all as vehicle speed sensor 16, engine rotation speed sensor 17, accelerator open degree sensor 18, the fuel flow sensor 19 of information detecting unit with analyzer main body 2.In addition, be electrically connected auxiliary brake start part (information detecting unit) 20 and analyzer main body 2.

From above-mentioned auxiliary brake start part 15,20 with the user mode of auxiliary brake by ECU10 or be directly inputted to analyzer main body 2.This auxiliary brake is representative with exhaust brake, retarder etc. in truck etc. for example, but not necessarily leaves no choice but be defined in this.

As shown in Figure 1, setting device 21 can for example be changed the predetermined warning value A1 of accelerator open degree A described later by each selector switch 22, A2 and predetermined set time T 11, T26, predetermined warning value dA2 and the predetermined set time T 22 of accelerator open degree change dA, predetermined warning value E1 and the predetermined set time T 12 of engine speed E, predetermined warning value S2 and the predetermined set time T 21 of speed of a motor vehicle S, predetermined warning value dS2 and the predetermined set time T 23 of speed of a motor vehicle change dS, the most high-grade obsolete predetermined warning time T t2 and predetermined set time T 24, predetermined warning value B2 and the predetermined set time T 25 of auxiliary brake utilization rate B, the setting of the predetermined warning time T i3 of idling and predetermined set time T 31 etc.

In addition, as described above, can be periodically from the necessary report of vehicle-mounted printer 6 outputs, but having or not of can carrying out that this regularly exports wait and set the setting of other such kind such as changing.Thereby various settings are set alternation switch 23 by pushing and are delivered to analyzer main body 2.

From vehicle-mounted printer 6 exportable various reports.Typical 3 examples are described here.Fig. 3 illustrates warning and sets report 41.Report 41 is set in warning can be as required in output constantly arbitrarily.Set the cylinder number 42 that for example shows motor in the report 41 in this warning, constant engine output speed 43, the predetermined warning value of speed of a motor vehicle S (predetermined warning condition) S244, the predetermined warning value of engine speed E (predetermined warning condition) E145, the predetermined warning value of accelerator open degree A (predetermined warning condition) A1, A246, the predetermined warning time of idling transit time Ti (predetermined warning condition) Ti347, the predetermined set time T 2148 of the overtime Ts2 of relative speed of a motor vehicle S, the predetermined set time T 1249 of the overtime Te of relative engine speed E, the working state of vehicle-mounted printer 6 shows 50, and the actuator state of warning shows 51.

In addition, the overtime Ta1 that also can show relative accelerator open degree A as required, the predetermined set time T 11 of Ta2, T26, accelerator open degree changes predetermined warning value (predetermined warning condition) dA2 of dA relatively, the predetermined set time T 22 of relative its overtime Tda, predetermined warning value (predetermined warning condition) dS2 of speed of a motor vehicle change dS, the predetermined set time T 23 of relative its overtime Tds, the most high-grade (predetermined warning condition) Tt2 of predetermined warning time that does not use transit time Tt, predetermined set time T 24 that relatively should transit time Tt, the predetermined warning value of auxiliary brake utilization rate B (predetermined warning condition) B2, the predetermined set time T 25 of relative its overtime Tb, the predetermined set time T 31 of relative idling transit time Ti etc.

Owing to can be have like this changed the predetermined set time T 11 etc. of the accelerator open degree A that sets by setting device 21 from vehicle-mounted printer 6 outputs, so, can be on vehicle confirm correctly that by the form of printing immediately this has changed the predetermined set time T 11 set etc.

Fig. 4 illustrates time-triggered report 61.Time-triggered report 61 is according to setting at regular intervals output automatically, is used to make the driver to be familiar with the number of times that surpasses about the parameter of particular importance repeatedly.In time-triggered report 61, show date printed and time 62, surpassing number of times 63, surpass number of times 64, surpassing number of times 65, surpass number of times 66 about speed of a motor vehicle S described later about engine speed E about idling transit time Ti about accelerator open degree A.

Fig. 5 illustrates to surpass and adds up to report 71.Surpass and add up to report 71 exporting constantly arbitrarily as required.In surpassing total report 71, show respectively and add up to the zero hour 72, add up to the finish time 73, surpass number of times 74 about speed of a motor vehicle S, surpass number of times 75 about accelerator open degree A, surpass number of times 76 about engine speed E, surpass number of times 77 about idling transit time Ti, accumulative total travel distance 78, fuel consumption 79, specific fuel consumption 80, accumulative total travel distance TL when accelerator open degree nought state described later and vehicle brake do not use relatively always adds up the walking ratio 81 of travel distance.

The fuel flow rate F that the speed of a motor vehicle S that CPU3 for example detects according to vehicle speed sensor 11, fuel flow sensor 14 detect etc., calculate above-mentioned accumulative total travel distance 78 and fuel consumption 79, calculate above-mentioned specific fuel consumption 80 according to this accumulative total travel distance 78 and fuel consumption 79.In addition, also can show about accelerator open degree change dA surpass number of times, about speed of a motor vehicle change dS surpass number of times, about the most high-gradely obsoletely surpassing number of times, surpassing number of times etc. about auxiliary brake utilization rate B.

Speed of a motor vehicle S, accelerator open degree A, engine speed E, idling transit time Ti, specific fuel consumption etc. are for realizing that fuel consumption conservation all is important information, fuel consumption particularly, and the past can not be learnt on vehicle, must be waited for that later cause is resolved etc.As can then can further improve driver's fuel consumption conservation consciousness from the printer output fuel consumption on the vehicle.In addition, also can show about accelerator open degree change dA surpass number of times, about speed of a motor vehicle change dS surpass number of times, about the most high-gradely obsoletely surpassing number of times, surpassing number of times etc. about auxiliary brake utilization rate B.

In addition, for about speed of a motor vehicle S surpass number of times 74, about accelerator open degree A surpass number of times 75, about engine speed E surpass number of times 76, about idling transit time Ti surpass number of times 77, CPU3 calculate respectively with accumulative total travel distance 78 remove surpass respectively that number of times 74～77 obtains surpass incidence rate Rs, Ra, Re, Ri.Then, surpass the occasion that incidence rate Rs, Ra, Re, Ri surpass predetermined set value Rso, Rao, Reo, Rio at this, warning label 85,86 is shown in respectively and surpasses in each information that adds up to report 71.

In Fig. 5, as an example, surpass incidence rate Ra, the Re that illustrate about accelerator open degree A and engine speed E surpass predetermined set value Rao, Reo respectively.Like this, the driver can be by relevant with which information surpassing incidence rate Rs, Ra, Re, Ri above predetermined set value Rso, Rao, Reo, Rio with reference to surpass adding up to report 71 to learn in moment.The demonstration of this warning label be not limited to about above-mentioned speed of a motor vehicle S surpass number of times 74 etc., for example also can the out of Memory such as walking ratio 81 that specific fuel consumption 80, accumulative total travel distance TL when accelerator open degree nought state and vehicle brake do not use relatively always add up travel distance be shown.

Above-mentioned warning is set report 41 and can be exported from vehicle-mounted printer 6 at any time by the setting check switch 8a that presses analyzer main body 2, and surpassing total report 71 can be by pressing print switch 8b at any time from vehicle-mounted printer 6 outputs.In addition, the various processing informations that are stored in the storage 4 of analyzer main body 2 also can be delivered to the cause institute analyzer 32 of being located at cause institute, vehicular manufacturer etc. by storage card 31, can carry out detail analysis by this cause institute analyzer 32.

In addition, when vehicle driving began, by pressing the beginning switch 8d that travels of analyzer main body 2, thereby each information that beginning has been handled by CPU3 was in the storage of storage 4.Operation by pressing this beginning switch 8d that travels or with its operation of carrying out independently of pressing print switch 8b, each information that stores storage 4 before this into is all wiped.One example of the operation of travel beginning switch 8d and print switch 8b is shown below.

Fig. 6 illustrates common occasion.As shown in Figure 6, wait by driver and when the vehicle driving on the same day begins, to press the beginning switch 8d that travels, thus each information that will be stored in storage 4 before this all wipe, simultaneously, each data storage that begins after this to have been handled by CPU3 is to storage 4.When returning the storehouse, presses by the vehicle on the same day print switch 8b by driver etc., thereby from shown in Figure 5 surpassing of printer 6 outputs adding up to report 71.By pressing the operation of this print switch 8b, thereby each information that will be stored in storage 4 is before this all wiped.

Fig. 7 illustrates driver etc. and forgets the occasion of pressing above-mentioned print switch 8b when travelling of the day before yesterday finished.In this occasion, before the beginning of travelling of the vehicle on the same day, press print switch 8b by driver etc., thereby report 71 from the printer 6 outputs total that surpasses shown in Figure 5, in addition, each information that is stored in storage 4 is all wiped.Then, pressing the beginning switch 8d that travels when beginning to travel, thereby each information that after this beginning is handled by CPU3 is in the storage of storage 4 by waiting as driver.In addition, press print switch 8b when returning the storehouse as the driver according to the common vehicle that operates in the same day, then surpass to add up to and report 71 from printer 6 outputs, simultaneously, each information that stores storage 4 into all is wiped free of.

Fig. 8 illustrates driver etc. and forget occasion that pressing the beginning switch 8d that travels when travelling of the same day begins.In this occasion, even forgetting, driver etc. pressing the beginning switch 8d that travels when travelling of the same day begins, as power connection, (with reference to Figure 10, Figure 22 and Figure 23) then restarted a series of processing undertaken by this vehicle-mounted analyzer 1 day before yesterday then also as described later.In this occasion, each information that stored storage 4 day before yesterday into is not wiped free of, for example for above-mentioned about speed of a motor vehicle S surpass number of times 74 etc., also with the number of times that surpasses that number of times directly is added to the day before yesterday that surpasses on the same day.

Then, when the vehicle on the same day is returned the storehouse, press print switch 8b, thereby make shown in Figure 5 surpassing add up to report 71 from printer 6 outputs according to common operation by driver etc.In this occasion, driver etc. are by relatively with reference to adding up to report 71 and surpassing of the day before yesterday to add up to report 71 surpassing of the same day, thus can learn the same day surpass number of times etc.

By being had, the beginning switch 8d that travels to be stored in each information erasing and the function of restarting of storage 4 in the storage of storage 4, and print switch 8b is had to be stored in the function of each information erasing of storage 4, thereby not needing to be provided for separately to be stored in the special switch of each information erasing of this storage 4, can realize the reduction of manufacture cost and the simplification of switching manipulation.

As shown in Figure 9, in above-mentioned vehicle-mounted analyzer 1, by wait switching the warning diverter switch 8c of analyzer main body 2 by driver, thereby can large, medium and small such 3 grades will be switched to by the volume of the warning of generations such as buzzer or simulated sound etc.Warning diverter switch 8c shown in Figure 1 is the button mode, whenever press 1 time can from greatly to, therefrom to the little volume that changes warning successively.

In addition, also can press warning diverter switch 8c by the driver, feasible buzzer or the simulated sound etc. of can't help give a warning.This is because for the walking states of some vehicle, also be necessary the state that makes that the changeable one-tenth of driver does not give a warning.But the driver switches to the state of generation that does not have warning, is limited to by the caretaker that travels to wait the warning configuration switch 24 of operating and setting device 21 in advance and make the occasion that switches to the state ground setting that not warning takes place.

This is because then there is the danger that can not carry out suitable fuel consumption conservation management in the switching that has or not as the driver can freely warn generation.That is, by making that the driver just switches to the state of not warning generation when the caretaker that travels the uses setting device 21 of etc.ing has carried out setting in the mode that can carry out this switching, thereby can positively get rid of such danger.

Monitor by the warning that this fuel consumption conservation management system carries out below with reference to Figure 10～Figure 21 explanation.

As shown in Figure 10, CPU3 reads in the engine speed E (step S2) that engine rotation speed sensor 12,17 detects, and judges whether engine speed E surpasses zero (step S4).For negating the occasion of (No), promptly the occasion that stops of motor is carried out the initialization (step S6) of state understanding in the result of determination of step S4.Result of determination at step S4 is to affirm the occasion of (being), and promptly the occasion of engine operation is further read in vehicle speed sensor 11,16 detected speed of a motor vehicle S (step S8), judges whether speed of a motor vehicle S is zero (step S10).Result of determination at step S10 is sure occasion, and promptly vehicle is in the occasion of walking states, implements walking shown in Figure 11 and handles (step S12).

In the occasion of result of determination for negating of step S10, promptly the occasion of vehicle halted state is implemented idling shown in Figure 21 and is handled (step S14).After the initialization (step S6) of enforcement state understanding or walking are handled (step S12) or idling and handled (step S14), whether judge deenergization (step S16).In the occasion of result of determination of step S16, carry out step S2 and later step thereof once more repeatedly for negating.Result of determination at step S16 is sure occasion, finishes warning and monitors.

As shown in Figure 11, walking is handled as described below and is implemented.CPU3 judges whether the speed of a motor vehicle S that is read in by step S8 surpasses the predetermined set value So (step S20) of speed of a motor vehicle S, and this predetermined set value So is in order to differentiate whether walking and setting on expressway of vehicle.In the occasion of result of determination for negating of step S20, promptly speed of a motor vehicle S implements Figure 12 and Ordinary Rd shown in Figure 13 and handles (step S22) smaller or equal to the occasion of predetermined set value.

Result of determination at step S20 is sure occasion, further detect the overtime Ts0 (step S24) that speed of a motor vehicle S surpasses predetermined set value So, judge that whether this overtime Ts0 surpasses predetermined set time T 01 (step S26), this predetermined set time T 01 is in order to differentiate vehicle and whether just to carry out the continuous high speed walking and setting.Result of determination at step S26 is sure occasion, implements Figure 14～expressway shown in Figure 16 and handles I or Figure 17～expressway processing II (step S28) shown in Figure 20.In the occasion of result of determination of step S26 for negating, judge that vehicle does not carry out the continuous high speed walking, the Ordinary Rd of implementation step S22 is handled.Like this, finishing walking handles.

As shown in Figure 12, the Ordinary Rd of Figure 11 is handled by CPU3 and is used speed of a motor vehicle S, engine speed E, accelerator open degree A, the idling transit time Ti that handles as the Ordinary Rd processing information, implements as described below.In having the vehicle that speed of a motor vehicle S is adjusted into automatically smaller or equal to the speed limiting device of predetermined speed, CPU3 detects the start signal of this speed limiting device, judges whether positive start (step S100) of speed limiting device.For example, the start signal of speed limiting device can easily obtain from ECU10.

Result of determination at step S100 is sure occasion, i.e. the occasion of speed limiting device start is implemented step S112 shown in Figure 13 and later processing thereof, not the processing of implementation step S101～110.This is because when the speed limiting device start, pedal makes accelerator open degree become excessive even the driver steps on the throttle, and is also made by speed limiting device can not surpass and the corresponding emitted dose of predetermined speed ground burner oil.Get final product when therefore, relevant with accelerator open degree A warning of sending to the driver etc. is in not start of speed limiting device.Like this, can get rid of the unplessantness displeasure of the generation of useless warning to driver's generation.And, also can when the speed limiting device start, also send the warning relevant with accelerator open degree A to the driver.

The occasion of result of determination at step S100 for negating, it is the occasion of not start of speed limiting device, CPU3 reads in the accelerator open degree A (step S101) that is detected by accelerator open degree sensor 13,18, judge whether accelerator open degree A surpasses predetermined warning value A1 (step S102), and this predetermined warning value A1 steps on and sets in order to differentiate the surplus of whether carrying out gas pedal.Result of determination at step S102 is sure occasion, judges that promptly the driver is just carrying out the occasion that the surplus of gas pedal is stepped on, and the driver utilizes the warning (step S104) of buzzer etc. from loudspeaker 5 relatively.

Then, CPU3 detects the overtime Ta1 (step S106) that accelerator open degree A surpasses predetermined warning value A1, judges whether this overtime Ta1 surpasses predetermined set time T 11 (step S108).Result of determination at step S108 is sure occasion, promptly the driver also continues the occasion that the surplus of gas pedal is stepped on after the warning of carrying out step S104, add above count value (generation that surpasses) at storage 4, store its accumulative total and surpass number of times and accumulative total overtime (step S110).

In the Ordinary Rd walking, particularly accelerator open degree A produces big influence to fuel cost.Therefore,, manage based on the warning of this accelerator open degree A, the generation that surpasses by storage thereby can carry out fuel consumption conservation exactly.In not having the vehicle of speed limiting device, do not carry out the judgement of above-mentioned steps S100, as long as carry out step S102～S110.

The occasion of result of determination at above-mentioned steps S102 for negating, be that accelerator open degree A is smaller or equal to predetermined warning value A1, the driver does not carry out the occasion that the surplus of gas pedal is stepped on, and the occasion of the result of determination of above-mentioned steps S108 for negating, be that above-mentioned overtime Ta1 is smaller or equal to predetermined set time T 11, judge the occasion that the driver steps on corresponding to the surplus of warning termination gas pedal, and will be above add to storage 4 occasion of count value by step S110, as shown in Figure 13, CPU3 judges whether the engine speed E that is read in by step S2 surpasses predetermined warning value E1 (step S112), and whether this predetermined warning value E1 to make the rotating speed that fuel cost worsens and set in order to differentiate to become.

Result of determination at step S112 is sure occasion, promptly judge the occasion of driver by such engine speed E walking that fuel cost is worsened, CPU3 reads in fuel flow sensor 14,19 detected fuel flow rate F (step S114), judge whether fuel flow rate F surpasses predetermined set value Fo (step S116), the minimum injection of this predetermined set value Fo during with vehicle to run is relevant.

In the diesel engine car, the minimum fuel injection amount during owing to vehicle to run is zero when returning gas pedal, so this predetermined set value Fo is by extremely approaching zero setting value.Here, do not establish predetermined set value Fo and be zero be because, be zero even actual fuel sprays, zero situation also takes place not show when measuring by fuel flow sensor 14,19 often.In addition, in the petrol engine car, when in the vehicle to run process, returning gas pedal, also exist a certain amount of fuel to spray, so predetermined set value Fo is by the setting value near this fuel injection amount.

Result of determination at step S116 is sure occasion, S104～S110 is same with above-mentioned steps, implements the warning (step S118) to the driver, detection (step S120) that engine speed surpasses the overtime Te of predetermined warning value E1, judgement (step S122) that whether this overtime Te surpasses predetermined set time T 12, is that sure occasion surpasses the addition (step S124) of count value at storage 4 in the result of determination of step S122.Like this, will totally surpass number of times and be stored in storage 4 with the accumulative total overtime.

The occasion of result of determination at step S112 for negating, judge that promptly engine speed E is smaller or equal to predetermined warning value E1, do not become the occasion of the rotating speed that makes the fuel cost deterioration, and the occasion of the result of determination of step S116 for negating, the occasion of the predetermined set value Fo that the minimum injection that is fuel flow rate F smaller or equal to vehicle to run the time is relevant, and the occasion of the result of determination of step S122 for negating, the overtime Te that promptly judges above-mentioned engine speed E is smaller or equal to predetermined set time T 12, the driver has suppressed the occasion of engine speed E corresponding to warning, and will finish Ordinary Rd and handle above add to storage 4 occasion of count value by step S124.

In this Ordinary Rd is handled, the occasion of the predetermined set value Fo that the minimum injection when fuel flow rate F surpasses with vehicle to run is relevant only, carry out warning about engine speed E etc., this be because, for example when the engine brake start, even engine speed E height, surpass predetermined set value E1, motor also is in minimum fuel spray regime, so, fuel cost is worsened.Therefore,, do not need to give a warning etc., by avoiding useless warning, thereby can get rid of the unplessantness displeasure that results from the driver to the driver in such occasion.

As shown in Figure 14, the expressway of Figure 11 is handled I and is used speed of a motor vehicle S, accelerator open degree change dA, the speed of a motor vehicle change dS, the most high-grade transit time Tt2, the auxiliary brake utilization rate B of not using that handles as the expressway processing information by CPU3, implements as described below.CPU3 reads in accelerator open degree sensor 13,18 detected accelerator open degree A (step S200) earlier for the processing of back.Then, judge whether the speed of a motor vehicle S that is read in by step S8 surpasses predetermined warning value S2 (step S202), whether this predetermined warning value S2 just sets by the speed of a motor vehicle walking that worsens fuel cost in order to differentiate.

Result of determination at step S202 is sure occasion, judges that promptly the driver just by the occasion of the such speed of a motor vehicle walking that worsens fuel cost, judges whether the accelerator open degree A that is read in by step S200 surpasses predetermined set value Ao (step S203).Result of determination at step S203 is sure occasion, and relatively the driver utilizes the warning (step S204) of buzzer etc. from loudspeaker 5.

Then, CPU3 detects the overtime Ts2 (step S206) that speed of a motor vehicle S surpasses predetermined warning value S2, judges whether this overtime Ts2 surpasses predetermined set time T 21 (step S208).Result of determination at step S206 is sure occasion, the i.e. occasion stepped on of the surplus of warning the back driver to surpass to continue gas pedal in predetermined set time T 21 ground at step S204, to add to storage 4 above count value, and store this accumulative total and surpass number of times and accumulative total overtime (step S210).

So only when accelerator open degree A surpasses predetermined set value Ao, carry out the warning relevant and be with speed of a motor vehicle S because of, for example when the time in the descending walking of carrying out expressway, even descending grade makes speed of a motor vehicle S surpass predetermined warning value S2, A is little as accelerator open degree, then Shi Ji fuel injection amount is few, so, fuel cost is worsened.Therefore, there is no need to give a warning etc.,, can get rid of the unplessantness displeasure that the driver is produced by avoiding useless warning to the driver in such occasion.

The occasion of result of determination at step S202 for negating, judge that promptly speed of a motor vehicle S is smaller or equal to predetermined warning value S2, the occasion that the driver does not walk by the such speed of a motor vehicle that worsens fuel cost, and the occasion of the result of determination of step S203 for negating, be the occasion of accelerator open degree A smaller or equal to predetermined set value Ao, and the occasion of the result of determination of step S208 for negating, judge that promptly above-mentioned overtime Ts2 is smaller or equal to predetermined set time T 21, the driver has ended occasion by the speed of a motor vehicle walking that worsens fuel cost corresponding to warning, and will be above add to storage 4 occasion of count value by step S210, CPU3 is according to the accelerator open degree A that is read in by step S200, obtain the variation Δ A of the accelerator open degree of certain small time Δ T, calculate accelerator open degree change dA (step S212) according to following formula (1).

dA＝ΔA/ΔT......(1)

CPU3 judges whether this accelerator open degree change dA surpasses predetermined warning value dA2 (step S214), and this predetermined warning value dA2 sets for the change of differentiating the surplus of whether just carrying out accelerator open degree.Result of determination at step S214 is sure occasion, judge that promptly the driver is just carrying out the occasion of the surplus change of accelerator open degree, S202～S208 is same with above-mentioned steps, implements the warning (step S216) to the driver, detection (step S218) that accelerator open degree change dA surpasses the overtime Tda of predetermined warning value dA2, judgement (step S220) that whether this overtime Tda surpasses predetermined set time T 22, is that sure occasion surpasses the addition (step S222) of count value at storage 4 in the result of determination of step S220.To totally surpass number of times and add up overtime and be stored in storage 4.

In the expressway walking, particularly accelerator open degree change dA produces big influence to fuel cost.Therefore, by carrying out the warning based on this accelerator open degree change dA, the storage of the generation that surpasses, thereby can carry out the fuel consumption conservation management exactly.

The occasion of result of determination at step S214 for negating, judge that promptly accelerator open degree change dA is smaller or equal to predetermined warning value dA2, the driver does not carry out the occasion of change of the surplus of accelerator open degree, and the occasion of the result of determination of step S220 for negating, judge that promptly above-mentioned overtime Tda is smaller or equal to predetermined set time T 22, the driver has ended the occasion of change of the surplus of accelerator open degree corresponding to warning, and will be above add to storage 4 occasion of count value by step S222, next, CPU3 is as shown in Figure 15 according to the speed of a motor vehicle S that is read in by step S8, obtain the speed of a motor vehicle variation Δ S of certain small time Δ T, obtain speed of a motor vehicle change dS (step S224) according to following formula (2).

dS＝ΔS/ΔT......(2)

CPU3 judges whether this speed of a motor vehicle change dS surpasses predetermined warning value dS2 (step S226), and this predetermined warning value dS2 sets in order to differentiate the speed of a motor vehicle change that whether becomes the surplus that worsens fuel cost.Result of determination at step S226 is sure occasion, judge that promptly the driver just makes the occasion of such superfluous speed of a motor vehicle change of fuel cost variation, S202～S208 is same with above-mentioned steps, implements the warning (step S228) to the driver, detection (step S230) that speed of a motor vehicle change dS surpasses the overtime Tds of predetermined warning value dS2, judgement (step S232) that whether this overtime Tds surpasses predetermined set time T 23, is that sure occasion surpasses the addition (step S234) of count value at storage 4 in the result of determination of step S230.To totally surpass number of times and add up overtime and be stored in storage 4.

The occasion of result of determination at step S226 for negating, judge that promptly speed of a motor vehicle change dS is smaller or equal to predetermined warning value dS2, the occasion that such superfluous speed of a motor vehicle that the driver is worsened fuel cost changes, and the occasion of the result of determination of above-mentioned steps S232 for negating, judge that promptly above-mentioned overtime Tds is smaller or equal to predetermined set time T 23, the driver has suppressed the occasion of speed of a motor vehicle change dS corresponding to warning, and will be above add to storage 4 occasion of count value by step S232, next, CPU3 reads in speed of a motor vehicle S according to the engine speed E that is read in by step S2 with by step S8, infers and judges and whether just using the most high-grade (step S236).

The occasion of result of determination at step S236 for negating, be that the driver does not use the most high-grade occasion, detect the most high-grade transit time Tt (step S238) that do not use, judge whether the most high-grade transit time Tt that do not use surpasses predetermined warning time T t2 (step S240).Result of determination at step S240 is sure occasion, be that the driver surpasses the most high-grade occasion of predetermined warning time T t2 ground use, S202～S208 is same with above-mentioned steps, implement to the driver warning (step S242), the most high-gradely do not use judgement (step S244) that whether transit time Tt surpass predetermined set time T 24, surpass the addition (step S246) of count value for certainly the time when the result of determination of step S244 at storage 4.To totally surpass number of times and add up overtime and be stored in storage 4.

Result of determination at step S236 is sure occasion, i.e. judgement is just being used the most high-grade, the driver makes the occasion of such walking of fuel cost deterioration, and the occasion of the result of determination of step S240 for negating, promptly, judge that above-mentioned transit time Tt is smaller or equal to predetermined set time T 24, the driver changes the most high-grade occasion into corresponding to warning, and will be above add to storage 4 occasion of count value by step S246, next, CPU3 is as shown in Figure 16 from auxiliary brake start part 15,20 detect the use (step S248) of auxiliary brake, according to the access times N of certain travel distance Lo, calculate auxiliary brake utilization rate B (step S250) by following formula (3).

B＝N/Lo......(3)

CPU3 judges whether this auxiliary brake utilization rate B surpasses predetermined warning value B2 (step S252), and this predetermined warning value B2 sets in order to differentiate the utilization rate that whether becomes the auxiliary brake that makes the fuel cost deterioration.Result of determination at step S252 is sure occasion, same with above-mentioned steps S202～208, implement driver's warning (step S254), auxiliary brake utilization rate B ultrasonic are crossed the detection (step S256) of the overtime Tb of predetermined warning value B2, judgement (step S258) that whether this overtime Tb surpasses predetermined set time T 25, are that sure occasion surpasses the addition (step S260) of count value at storage 4 in the result of determination of step S258.To totally surpass number of times and add up overtime and be stored in storage 4.

The occasion of result of determination at step S252 for negating, judge that promptly auxiliary brake utilization rate B makes the occasion of such walking of fuel cost deterioration smaller or equal to predetermined warning value B2, driver, and the occasion of the result of determination of step S256 for negating, judge that promptly above-mentioned overtime Tb has ended the occasion of use of the surplus of auxiliary brake corresponding to warning smaller or equal to predetermined set time T 25, driver, and will stop expressway and handle I above add to storage 4 occasion of count value by step S258.

From Figure 14～Figure 16 as can be seen, handle among the I at above-mentioned expressway, do not carry out based on accelerator open degree A to driver's warning etc.This is because when carrying out the expressway walking, the motor that fitness for purpose is high is exported the necessity height of the pedal of stepping on the throttle.Yet, also can carry out as required based on accelerator open degree A to driver's warning etc., the processing of this occasion is handled II as expressway is shown in Figure 17～Figure 20.

Step S200 shown in Figure 14～S222 that the step S300～S322 of expressway processing II shown in Figure 17 and above-mentioned expressway are handled I is same.Have and speed of a motor vehicle S can be adjusted in the vehicle of the speed limiting device below the predetermined speed automatically, next CPU3 detects the start signal of this speed limiting device, judges whether positive start (step S330) of speed limiting device.

Result of determination at step S330 is sure occasion, i.e. the occasion of the positive start of speed limiting device is implemented step S350 shown in Figure 19 and later processing thereof, not the processing of implementation step S322～340.Its reason is identical with the occasion of the step S100 shown in Figure 12 that above-mentioned Ordinary Rd is handled.The occasion of result of determination at step S330 for negating, it is the not occasion of start of speed limiting device, CPU3 judges whether the accelerator open degree A that is read in by step S300 surpasses predetermined warning value A2 (step S332), should step on and set in order to differentiate the surplus of whether just carrying out gas pedal by predetermined warning value A2, result of determination at step S332 is sure occasion, the driver is utilized the warning (step S334) of buzzer etc. from loudspeaker 5.

Then, CPU3 detects the overtime Ta2 (step S336) that accelerator open degree A surpasses predetermined warning value A2, judges whether this overtime Ta2 surpasses predetermined set time T 26 (step S338).Result of determination at step S338 is sure occasion, will add to storage 4 above count value, and its storage accumulative total surpasses number of times and accumulative total overtime (step S340).And, also can make and when the speed limiting device start, also implement relevant with accelerator open degree A warning to the driver etc.In addition, in the vehicle of unequipped speed limiting device, do not carry out the judgement of above-mentioned steps S330, carry out step S332～S340 and get final product.

In the result of determination of above-mentioned steps S332 occasion, and the occasion of the result of determination of above-mentioned steps S338, and will surpass add to storage 4 occasion of count value, enforcement Figure 19 and step S350 shown in Figure 20～S386 by step S340 for negating for negating.Figure 15 and step S224～S260 shown in Figure 16 that this step S350～S386 and above-mentioned expressway are handled I are identical.

On the other hand, such as shown in figure 21, idling shown in Figure 10 is handled as described below and is implemented.CPU3 detects idling transit time Ti (step S400), judges whether idling transit time Ti surpasses predetermined warning time T i3 (step S402).Result of determination at step S402 is sure occasion, and promptly the driver surpasses the occasion of predetermined warning time T i3 ground through idling, the driver is utilized the warning (step S404) of buzzer etc. from loudspeaker 5 enforcements.

In addition, CPU3 judges whether idling transit time Ti surpasses predetermined set time T 31 (step S406).Result of determination at step S406 is sure occasion, promptly, the driver still surpasses the occasion of predetermined set time T 31 ground through idling after carrying out the warning of step S404, will surpass count value 4 (the step S408) that add to storage, and surpasses number of times and adds up overtime in this accumulative total of storage 4 storages.

The occasion of result of determination at step S402 for negating, promptly judge the occasion that idling transit time Ti does not stop smaller or equal to predetermined warning time T i3, driver under idling mode, and the occasion of the result of determination of step S406 for negating, judge that promptly idling transit time Ti is smaller or equal to predetermined set time T 31, the driver occasion corresponding to the warning shutting engine down, and will finish idling and handle above add to storage 4 occasion of count value by step S408.

Here, above-mentioned predetermined set time T 11～T31 can change setting by the setting device on the vehicle 21.Therefore, occasion in the setting that changes these predetermined set time T 11 grades, do not need temporarily to pull down analyzer main body 2 from vehicle, it is positioned over vehicle base or delivers to vehicular manufacturer's change, or make the storage card stored this predetermined set time T 11 etc. in advance, use this storage card to change the setting of analyzer main body 2.Like this, according to this fuel consumption conservation management system, the predetermined set time T 11 that can use above-mentioned setting device 21 on vehicle, rapidly and easily to change to be stored in analyzer main body 2 etc., so, can very successfully carry out the fuel consumption conservation management.

In addition, be not when warning takes place, will warn be stored in storage 4, but in case the travelling state of warning the back and satisfying this predetermined warning value etc. thereafter to the driver surpasses the occasion that predetermined set time T 11 ground continue, just store storage 4 into, thereby do not make the driver feel mental burden, the chance of travelling that corrects oneself can be provided, can very successfully carry out the fuel consumption conservation management.

In addition, for example in the expressway walking, then flurried sometimes as inappropriate with the vehicle headway of front truck, slow down repeatedly, quicken once more to catch up with the action of front truck.Wavy problem of travelling on existing safely so simultaneously, particularly becomes the maximum reason that the fuel cost in the expressway walking worsens.Like this, in Ordinary Rd walking and expressway walking, the viewpoint difference of fuel consumption conservation management, corresponding therewith, fuel cost is resolved also difference of needed information.According to this fuel consumption conservation management system, carry out information processing with being divided into Ordinary Rd walking and expressway walking, so, can carry out the fuel consumption conservation management exactly.

In addition, driver, the caretaker that travels can correctly understand the travelling state of this moment immediately from vehicle-mounted printer 6 with print form on vehicle, can further improve driver's fuel consumption conservation consciousness.In addition, also can only comprise analysis in interior a series of fuel consumption conservation management by vehicle-mounted analyzer 1, in this occasion, particularly need not introduce, the cause institute analyzer 32 of the cost of having relatively high expectations when using at equipment, thing dealer's introducing is more easy on a small scale.

Below, monitor by the Reduced Speed Now that this fuel consumption conservation management system carries out with reference to Figure 22 and Figure 23 explanation.

As slowing down when the vehicle to run, gas pedal is returned, the distance of the Reduced Speed Now of walking under minimum fuel spray regime, undertaken by engine brake is long more, then big more to the fuel consumption conservation contribution.On the other hand, having equipped with exhaust brake, retarder etc. is in the vehicle of auxiliary brake of representative, can obtain good braking characteristic by the start of this auxiliary brake, so, can see and carry out the anxious anxious tendency of quickening of slowing down and accompanying therewith repeatedly, become the major reason that fuel cost worsens.Therefore, monitor by this Reduced Speed Now and can monitor the Reduced Speed Now vehicle of particularly having equipped this auxiliary brake, that undertaken by engine brake exactly.

Such as shown in figure 22, CPU3 reads in fuel flow sensor 14,19 detected fuel flow rate F (step S50), judges the whether relevant predetermined set value Fo (step S52) of minimum injection less than with vehicle to run time of fuel flow rate F.In the diesel engine car, the minimum fuel injection amount during owing to vehicle to run is zero when returning gas pedal, so this predetermined set value Fo is by extremely approaching zero setting value.Here, do not make predetermined set value Fo be zero be because, be zero even actual fuel sprays, zero situation also takes place not show when measuring by fuel flow sensor 14,19 often.In addition, in the petrol engine car, in the vehicle to run process, when returning gas pedal, also exist a certain amount of fuel to spray, so predetermined set value Fo is by the setting value near this fuel injection amount.

Result of determination at step S52 is sure occasion, the occasion of the predetermined set value Fo that the minimum injection that is fuel flow rate F less than with vehicle to run the time is relevant, CPU3 reads in accelerator open degree sensor 13,18 detected accelerator open degree A (step S54), judges whether accelerator open degree A is roughly zero (step S56).Owing to be roughly zero, so, by zero or considered apparatus error etc. near zero setting value.

Like this, during with the predetermined set value Fo of the minimum fuel flow rate of fuel flow rate F when being similar to vehicle to run and accelerator open degree A be made as the accelerator open degree nought state when being roughly zero, be made as this decision condition, thereby the minimum fuel that can very correctly capture diesel engine car or petrol engine car sprays walking.And, also can only judge this accelerator open degree nought state by the either party among fuel flow rate and the accelerator open degree A.Like this, also can catch the minimum fuel injection walking of vehicle by very high precision.

In the occasion of result of determination of step S56 for negating, judge that promptly accelerator open degree A is roughly zero occasion, from the user mode (step S58) of auxiliary brake start part 15,20 detection auxiliary brakes, judge that whether break is for not using (step S60).Result of determination at step S60 is sure occasion, be that auxiliary brake is obsolete occasion, CPU3 reads in vehicle speed sensor 11,16 detected speed of a motor vehicle S (step S62), according to this speed of a motor vehicle S and transit time, calculate the obsolete travel distance L of accelerator open degree nought state and auxiliary brake (step S64), travel distance L is added to storage 4, storage accumulative total travel distance TL (step S66).

The occasion of result of determination at above-mentioned steps S52 for negating, it is the occasion of the minimum spray regime when the vehicle to run of fuel flow rate F, and the occasion of the result of determination of above-mentioned steps S56 for negating, be that accelerator open degree A is roughly zero occasion, and the occasion of the result of determination of step S60 for negating, promptly use the occasion of auxiliary brake, and will add up the occasion that travel distance TL stores storage 4 into, judge whether power supply disconnects (step S68) by above-mentioned steps S66.In the occasion of result of determination of step S68, carry out the following step of above-mentioned steps S50 repeatedly for negating.Result of determination at step S68 is sure occasion, finishes Reduced Speed Now and monitors.

On the other hand, at vehicle mounting speed of a motor vehicle S can be adjusted into automatically the occasion of the automatic economy cruising system of preset vehicle speed, implement Reduced Speed Now shown in Figure 23 and monitor.The step S70 of Figure 23 is identical with step S50 shown in Figure 22 and S52 with S72.In result of determination step S72, with the minimum injection relevant predetermined set value Fo of fuel flow rate F during whether less than vehicle to run is sure occasion, and next, CPU3 judges the whether start (step S73) of automatic economy cruising system.For negating to be the not occasion of start of automatic economy cruising system, implement the content identical (step S74～S88) in the result of determination of step S73 with step S54 shown in Figure 22～S68.

In the result of determination of step S73 for being that automatic economy cruising system is just in the occasion of start certainly, do not carry out step S74 accelerator open degree A read in and whether the accelerator open degree A of step S76 is roughly zero judgement, but the detection of the user mode of the auxiliary brake of implementation step S78 and following step thereof.Regard the accelerator open degree nought state in the occasion of automatically economy cruising system start during less than predetermined set value Fo as fuel flow rate F like this, be because when the start of automatic economy cruising system, the driver does not carry out accelerator pedal operation, so, be difficult to judge the accelerator open degree nought state by accelerator open degree A.

Monitor by this Reduced Speed Now, can monitor the Reduced Speed Now vehicle of particularly having equipped this auxiliary brake, that undertaken by engine brake exactly, provide the resolution data that travels about fuel consumption conservation best to driver, the caretaker that travels, can increase substantially the precision that fuel cost improves.

Driver, the caretaker that travels can export this accumulative total travel distance TL that is stored in storage 4 on vehicle as the walking ratio 81 that relatively always adds up travel distance from vehicle-mounted printer 6 as shown in Figure 5 immediately.Therefore, the driver, travel the caretaker in motion, when stopping, vehicle base returns Che Shi etc., and is right after the travelling state that can learn this moment after before this actual walking is compared immediately, can further improve the consciousness to fuel consumption conservation such as driver.

In addition, the accumulative total travel distance TL that is stored in storage 4 is input to cause institute, vehicular manufacturer's etc. cause institute analyzer 32 by storage card 31, thereby makes up, can analyze in more detail with the various report of exporting from cause institute analyzer 32.On the other hand, also can by storage card 31 with fuel flow rate F, accelerator open degree A, the auxiliary brake of storage 4 storage of the main body 2 of vehicle-mounted analyzer 1 use information, and speed of a motor vehicle S be input to cause institute analyzer 32, carry out Figure 22 or a series of processing shown in Figure 23 by cause institute analyzer 32.

In this fuel consumption conservation management system, as the information relevant with the walking states of vehicle, detect speed of a motor vehicle S, engine speed E, accelerator open degree A, fuel flow rate F, the information relevant with the use of auxiliary brake, but be not limited thereto, also can detect the out of Memory of vehicle, according to the storage to storage 4 of these generations of warning, generation of surpassing etc.In addition, as the processing information of CPU3, not necessarily leave no choice but comprise accelerator open degree A, accelerator open degree change dA.In addition, do not need this processing information is divided into Ordinary Rd processing information and expressway processing information the storage to storage 4 of the generation of warning, the generation that surpasses etc. yet.

Ordinary Rd processing information and expressway processing information also not necessarily are limited to foregoing.The switching that has or not that the warning of being undertaken by setting device 21 takes place is set and is also not necessarily leaveed no choice but implement.

In this fuel consumption conservation management system, as the information relevant with the walking states of vehicle, detect speed of a motor vehicle S, engine speed E, accelerator open degree A, fuel flow rate F, the information relevant with the use of auxiliary brake, but be not limited thereto, also can detect the out of Memory of vehicle, by the vehicle-mounted printer output information relevant with these processing informations, with the generation of warning and/or the generation that surpasses relevant information etc.In addition, also not necessarily leave no choice but carry out setting predetermined warning condition, the predetermined set time of changing by setting device by vehicle-mounted printer output.

Not necessarily leave no choice but by vehicle-mounted printer output specific fuel consumption, in addition, also not necessarily leave no choice but show the warning label that has surpassed the occasion of predetermined set value above incidence rate.In addition, each information of being undertaken by travel beginning switch and print switch from storage wipe or store restart also not necessarily leave no choice but implement.

On the other hand, in above-mentioned Reduced Speed Now monitors, when establishing the accelerator open degree nought state and be fuel flow rate F and/or accelerator open degree A when being roughly zero, but be not limited thereto, also can set the accelerator open degree nought state according to the out of Memory of vehicle less than predetermined set value Fo.In addition, calculate the relevant predetermined set value Fo of fuel flow rate F minimum injection less than the time and do not use the travel distance L of auxiliary brake according to the speed of a motor vehicle S of this moment and transit time, but be not limited thereto with vehicle to run, also can be according to the out of Memory calculating of vehicle.

In addition, according to vehicle-mounted printer 6 surpass to add up to report 71 to show that accelerator open degree A zero and auxiliary brake do not use the time the relatively total walking ratio 81 of travel distance totally of accumulative total travel distance TL, but be not limited thereto, also can directly show accumulative total travel distance TL, also can not carry out such demonstration.

Fuel consumption conservation management system of the present invention can very successfully carry out fuel consumption conservation management and the assistance to the driver for this purpose with being well on.Say in more detail, can alleviate the mental burden of driver side warning.In addition, can be rapidly and easily change the setting of the predetermined warning conditions such as predetermined warning value such as the speed of a motor vehicle that are stored in vehicle-mounted analyzer.In addition, driver, the caretaker that travels can learn the travelling state of this moment immediately and correctly on vehicle, can further improve driver's fuel consumption conservation consciousness, also can only comprise analysis in interior a series of fuel consumption conservation management by vehicle-mounted analyzer simultaneously, the thing dealer can more easily introduce on a small scale.In addition, particularly exactly monitor equipment the Reduced Speed Now of being undertaken by engine brake of vehicle of auxiliary brake, can increase substantially the precision of fuel cost management.

Therefore, the vehicle that carries fuel consumption conservation management system of the present invention is not limited to truck, bus, fuel consumption conservation management system of the present invention widely general using to the vehicle of all kinds.

Claims (4)

1. a fuel consumption conservation management system possesses the vehicle-mounted analyzer (1) and the cause institute analyzer (32) that carry out the parsing relevant with the fuel cost of the vehicle with auxiliary brake, it is characterized in that:

Above-mentioned vehicle has the automatic economy cruising system that the speed of a motor vehicle (S) can be adjusted into automatically preset vehicle speed,

Above-mentioned vehicle-mounted analyzer has information detecting unit, and this information detecting unit detects fuel flow rate (F) and/or the accelerator open degree (A) and the information relevant with the use of auxiliary brake of above-mentioned vehicle,

Above-mentioned vehicle-mounted analyzer and/or above-mentioned cause institute analyzer have information process unit (3) and information memory cell (4), this information process unit is according to above-mentioned fuel flow rate and/or above-mentioned accelerator open degree and the information relevant with the use of above-mentioned auxiliary brake, calculate the accumulative total travel distance (TL) of not walking under the user mode at accelerator open degree nought state and auxiliary brake, this information memory cell is stored the above-mentioned accumulative total travel distance that above-mentioned information process unit calculates

Above-mentioned information process unit (3) under the situation of above-mentioned fuel flow rate (F) less than predetermined set value (Fo), is made as above-mentioned accelerator open degree nought state when above-mentioned automatic economy cruising system acting.

2. fuel consumption conservation management system according to claim 1 is characterized in that:

Fuel flow rate (F) during less than above-mentioned predetermined set value (Fo) and also accelerator open degree (A) be made as above-mentioned accelerator open degree nought state when being roughly zero.

3. a fuel consumption conservation management system possesses the vehicle-mounted analyzer (1) and the cause institute analyzer (32) that carry out the parsing relevant with the fuel cost of the vehicle with auxiliary brake, it is characterized in that:

Above-mentioned vehicle-mounted analyzer has information detecting unit, and this information detecting unit detects fuel flow rate (F) and/or the accelerator open degree (A) and the information relevant with the use of auxiliary brake of the speed of a motor vehicle (S) of above-mentioned vehicle, above-mentioned vehicle,

Above-mentioned vehicle-mounted analyzer and/or above-mentioned cause institute analyzer have information process unit (3) and information memory cell (4), this information process unit is according to above-mentioned fuel flow rate and/or above-mentioned accelerator open degree and the information relevant with the use of above-mentioned auxiliary brake, calculate the accumulative total travel distance (TL) of not walking under the user mode at accelerator open degree nought state and auxiliary brake, this information memory cell is stored the above-mentioned accumulative total travel distance that above-mentioned information process unit calculates

Above-mentioned information process unit (3) calculates above-mentioned accumulative total travel distance (TL) according to the detected above-mentioned speed of a motor vehicle of above-mentioned information detecting unit and transit time of not walking under the user mode at above-mentioned accelerator open degree nought state and above-mentioned auxiliary brake.

4. fuel consumption conservation management system according to claim 3 is characterized in that:

Fuel flow rate (F) during less than predetermined set value (Fo) and also accelerator open degree (A) be made as above-mentioned accelerator open degree nought state when being roughly zero.

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