JP2007269210A - Vehicular information providing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular information providing device for providing information on factors for degrading the fuel consumption other than the driving operation by a driver separately from the driving operation. <P>SOLUTION: In a vehicle, the vehicular information providing device for providing information on enhancement of the fuel consumption to a driver comprises a detection means for detecting any increase in the stationary traveling resistance and an information providing means for providing information for enhancing the fuel consumption to the driver. The detection means detects a predetermined vehicular state, compares the detected state with a corresponding predetermined reference state, and determines based on the result of comparison whether or not the traveling resistance is steadily increased. The detection means detects the vehicular state or the vehicular peripheral environment state, and corrects the reference state based on the detected vehicular state or vehicular peripheral environment state. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention generally relates to a vehicle information providing apparatus that provides information for encouraging a driver to drive economically in a vehicle, and particularly relates to factors that deteriorate fuel consumption other than the driving operation by the driver. The present invention relates to a vehicle information providing apparatus that provides information.

  2. Description of the Related Art Conventionally, a vehicle information providing device that provides information for prompting a driver to drive economically in a vehicle is known (see, for example, Patent Documents 1 to 4).

Patent Documents 1 to 4 disclose devices that notify a driver of an evaluation of a driving situation based on vehicle information related to fuel consumption such as acceleration / deceleration and vehicle speed.
Japanese Patent Laid-Open No. 2001-082243 JP 2002-104023 A JP 2003-316864 A JP 2004-157842 A

  However, in the conventional devices described in Patent Documents 1 to 4, since the economic driving degree of the driving situation is evaluated based on the vehicle information resulting from the driving operation, for example, unnecessary luggage is loaded. Appropriate evaluation / advice is given when the vehicle condition changes due to factors other than driving such as poor vehicle maintenance, windows are open, carriers are installed, etc. I can't.

  SUMMARY OF THE INVENTION The present invention is intended to solve such problems, and a main object of the present invention is to provide a vehicle information providing apparatus that provides information on factors that deteriorate fuel consumption other than driving operations by a driver separately from driving operations. And

  In order to achieve the above object, a first aspect of the present invention is a vehicle information providing apparatus for providing information for improving fuel efficiency to a driver in a vehicle, which is a steady (that is, not temporary) traveling. Vehicle information provision comprising detection means for detecting an increase in resistance and information provision means for providing information for improving the fuel efficiency to the driver when a steady increase in driving resistance is detected by the detection means Device.

  In the first aspect, “steady (non-temporary) increase in running resistance” means, in other words, running resistance caused by a cause other than driving operation that can be said to hardly change depending on the driving operation of the driver. Points to an increase.

  In the first aspect, the detection means detects, for example, a predetermined vehicle state, compares it with a corresponding predetermined reference state, and whether or not the running resistance has steadily increased based on the comparison result. Determine whether.

  According to the first aspect, when it is determined that the running resistance is increased due to a cause other than the driving operation of the driver, the driving of the driver that cannot be improved only by the driver trying to drive economically. The driver can be informed that there is a factor that deteriorates some fuel consumption independent of the operation.

  In the first aspect, the determination as to whether or not the running resistance has steadily increased depends on the state of the vehicle and the surrounding environment of the vehicle. It is preferable to correct the reference state based on the detected vehicle state or the vehicle surrounding environment state.

  A second aspect of the present invention for achieving the above object is the vehicle information providing apparatus according to the first aspect, wherein the detection means is in a decelerating state and an acceleration state or a constant speed. The predetermined vehicle state and the reference state are compared in a traveling state, and the information providing means compares the comparison result when the host vehicle is in a decelerating state and the comparison when the host vehicle is in an accelerating state or a constant speed traveling state. It is an information providing device for vehicles which provides a driver with different information according to a result as information for the above-mentioned fuel consumption improvement.

  In the second aspect, the predetermined vehicle state detected by the detection means is, for example, a driving force when the host vehicle is in an acceleration state or a constant speed traveling state, and is controlled when the host vehicle is in a deceleration state. The reference state is, for example, a reference driving force when the host vehicle is in an accelerating state or a constant speed traveling state, and a reference braking force when the host vehicle is in a decelerating state.

  In this case, the information providing means specifically includes, for example, 1) a driving force detected when the host vehicle is in an accelerating state or a constant speed traveling state, being smaller than a reference driving force by a predetermined value, and When the braking force detected when the host vehicle is decelerating is smaller than the reference braking force by a predetermined value, the vehicle weight is steadily increased due to the loading of the load, and the running resistance is increased. And 2) the driving force detected when the host vehicle is in an accelerating state or a constant speed traveling state is smaller than a reference driving force by less than a predetermined value, and When the difference between the braking force detected when the host vehicle is decelerating and the reference braking force is less than a predetermined value, it is determined that the running resistance has increased due to a decrease in engine output, and maintenance for improving engine output is performed. (For example, air cleaner replacement 3) Information that prompts the driver to change the engine oil, check / replace the spark plug, etc.) 3) The driving force detected when the host vehicle is in an acceleration state or a constant speed driving state is a predetermined value over the reference driving force. The braking force detected when the host vehicle is in a decelerating state and the braking force detected when the host vehicle is in a decelerating state are larger than the reference braking force and the braking force detected when the host vehicle is in a decelerating state. When the difference in braking force is constant or proportional to the vehicle speed, it is determined that the running resistance has increased due to an increase in friction in the drive system, and maintenance for reducing the drive system friction is performed. The driving force detected when the vehicle is traveling at a high speed exceeds the predetermined value by a value smaller than the reference driving force, and the braking force detected when the host vehicle is decelerating exceeds the predetermined value by a value greater than the reference braking force. Large and the vehicle is decelerating When the difference between the braking force detected at this time and the reference braking force is proportional to the square of the vehicle speed, it is determined that the running resistance has increased due to an increase in the air resistance, and a countermeasure for reducing the air resistance (for example, a window 5) The driving force detected when the host vehicle is in an accelerating state or a constant speed traveling state is smaller than a reference driving force by a predetermined value and smaller than the reference driving force. In addition, the braking force detected when the host vehicle is decelerating is greater than the reference braking force by a predetermined value and the difference between the braking force detected when the host vehicle is decelerating and the reference braking force is When proportional to the engine speed, it is determined that the running resistance has increased due to an increase in friction in the engine system, and information that prompts the driver to perform maintenance for reducing the engine system friction. Constant The difference between the driving force detected in the high-speed driving state and the reference driving force is less than a predetermined value, and the braking force detected when the host vehicle is decelerating exceeds the predetermined value than the reference braking force. When it is small, it is determined that the running resistance has increased due to the fade of the brake, and information that prompts the driver to cool the brake. 7) Drive detected when the host vehicle is in an acceleration state or a constant speed running state When the difference between the force and the reference driving force is less than a predetermined value and the braking force detected when the host vehicle is decelerating is greater than the reference braking force and exceeds a predetermined value, the running resistance is increased by dragging the brake. Information that prompts the driver to check the brake dragging after judging that the brake force has increased is provided to the driver as information for improving the fuel consumption.

  According to the second aspect, since the vehicle state detected according to the traveling state of the vehicle is compared with the reference state, it is possible to narrow down the cause of the increase in traveling resistance that leads to deterioration in fuel consumption.

  A third aspect of the present invention for achieving the above object is the vehicular information providing apparatus according to the first or second aspect, wherein the information providing means is a steady state detected by the detecting means. An information providing apparatus for a vehicle that calculates a loss energy amount due to an increase in a running resistance and provides the calculated loss energy amount to a driver as a part of the information for improving the fuel consumption.

  In the third aspect, the information providing means provides the driver with, for example, a value obtained by converting the calculated loss energy amount into a fuel consumption amount as part of the information for improving the fuel consumption.

  According to the third aspect, since the amount of energy estimated to be excessively consumed due to a cause other than the driving operation of the driver is presented to the driver, the cause is improved for the driver and more economical. It can provide motivation and awareness to drive.

  In the third aspect, the information providing means calculates a value obtained by converting the calculated loss energy amount into an exhaust gas (such as carbon dioxide) emission amount from the viewpoint of allowing the driver to recognize the influence on the environment. You may make it provide a driver | operator as a part of information for the said fuel consumption improvement.

  ADVANTAGE OF THE INVENTION According to this invention, the information provision apparatus for vehicles which provides information about the factor which deteriorates fuel consumption other than the driving operation by a driver separately from driving operation can be provided.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the accompanying drawings.

  Hereinafter, a vehicle information providing apparatus according to an embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a schematic configuration diagram of a vehicle information providing apparatus 100 according to the present embodiment.

  The vehicle information providing apparatus 100 includes a state detection unit 101 that detects the state of the host vehicle and the state of the environment around the host vehicle. The state detection unit 101 includes a) a plurality of sensors, and may detect (or determine) the own vehicle state / the surrounding environment state of the own vehicle from the output signals of these sensors, and / or b) other on-vehicle units. Information on the state of the host vehicle / environment surrounding the host vehicle may be acquired from a system (for example, a navigation system) via, for example, an in-vehicle LAN. Information on the environmental condition around the vehicle may be acquired through

  Here, the state detection unit 101 includes, for example, fuel consumption, window open / closed state, vehicle speed, acceleration / deceleration, engine speed, brake oil pressure, generated driving force, generated braking force as information on the vehicle state of the host vehicle. It is configured to detect or obtain information regarding the number of occupants, tire pressure, etc.

  In addition, the state detection unit 101 includes, for example, information on roads (shape, terrain, gradient, altitude, etc.), information on road surface conditions (paved / unpaved, road friction coefficient [μ ], Snow accumulation, freezing, gravel / dirt, etc.), information on the weather (rainfall / snowfall, atmospheric pressure, wind speed / wind direction, etc.), and the like.

  The vehicle information providing apparatus 100 further includes a storage unit 102 that stores and holds data necessary for various processes performed by the vehicle information providing apparatus 100. In the present embodiment, the storage unit 102 may be an arbitrary storage medium.

  The vehicle information providing apparatus 100 further includes an information providing unit 103 that provides the driver with information for improving fuel efficiency. The information providing unit 103 typically includes a display unit (not shown) that displays information for improving the fuel efficiency as text information to the driver, and instead of or in addition to this, the fuel efficiency improvement is performed. There may be provided a voice output unit (not shown) for outputting information for the vehicle interior as a voice message.

  Here, the display unit (not shown) may be any type of in-vehicle display device such as a liquid crystal display or a head-up display (HUD), and may be a display device of another in-vehicle system (for example, navigation system, multimedia system, etc.). It may be combined. When the audio output unit is used, it may be an arbitrary speaker provided in the vehicle interior, and may also be used as a speaker of another in-vehicle system (for example, a navigation system or an audio visual system).

  The vehicle information providing apparatus 100 further includes a main control unit 104 that performs overall control of each component of the vehicle information providing apparatus 100 and performs calculations necessary for various processes that will be described in detail later. In this embodiment, the main control unit 104 is, for example, an ECU (Electronic Control Unit).

  Next, the flow of calculation and processing by the main control unit 104 will be described using the processing flow diagram of FIG.

  First, the main control unit 104 uses the vehicle state of the host vehicle and / or the environmental state around the host vehicle detected (or acquired) by the state detection unit 101, and the reference of the host vehicle stored in the storage unit 102 in advance. When the vehicle condition is corrected and the vehicle is in a certain driving condition (vehicle speed, engine speed, etc.) in terms of the number of passengers, road, weather, etc. at that time, how much driving resistance (rolling) It is possible to calculate whether resistance, air resistance, acceleration resistance, etc. should theoretically occur (S201).

  The storage unit 102 stores in advance calculation and / or empirical change data regarding deterioration such as wear of various mounted parts of the host vehicle. The reference of the host vehicle stored in the storage unit 102 is also stored in advance. It is used to correct vehicle conditions (especially rolling resistance, tire pressure, braking system friction, drive system friction, etc.).

  Next, the main control unit 104 compares a predetermined vehicle state among the vehicle states detected by the state detection unit 101 with a reference vehicle state stored in the storage unit 102 corresponding thereto, and the running resistance is constantly increased. It is checked whether it has increased (S202).

  In the present embodiment, as an example of the predetermined vehicle state, a driving force when the host vehicle is accelerating or traveling at a constant speed and a braking force when the host vehicle is decelerating are used and detected by the state detecting unit 101. The driving force when the subject vehicle is accelerating or traveling at a constant speed is significantly smaller than the theoretical driving force estimated based on the reference vehicle state stored in the storage unit 102, and the state detection unit 101 When the braking force when the host vehicle detected by the vehicle is decelerating is significantly larger or smaller than the theoretical braking force estimated based on the reference vehicle state stored in the storage unit 102, other than the driving operation of the driver Therefore, it is determined that the running resistance is constantly increasing.

  When it is determined that there is an increase in running resistance that is not steady / temporary, in other words, does not fluctuate significantly due to the driving operation (particularly acceleration / deceleration operation) by the driver, the main control unit 104 detects the state. The driving force / braking force of the host vehicle detected by the unit 01 is estimated in light of the fuel consumption deterioration factor determination map stored in the storage unit 102 in advance (S203).

  An example of the fuel consumption deterioration factor determination map stored in the storage unit 102 in this embodiment is shown in FIG.

  In this example, first, A) the driving force detected when the host vehicle is in the acceleration state and / or the constant speed traveling state is insufficient (for example, smaller than a predetermined value) than the reference driving force, and When the braking force detected when the host vehicle is decelerating is also less than the reference braking force (for example, smaller than a predetermined value), the driving force is required when adjusting / running at a constant speed and the braking force is required. Since the driving force / braking force is inadequate at any time during deceleration, the vehicle weight is steadily increased (for example, from the vehicle empty weight in the corrected reference vehicle state + the occupant) by loading the load. As a result, the driving resistance (acceleration resistance / deceleration resistance) is also judged to increase steadily, and it is determined that the increase in vehicle weight due to loading of extra luggage is the cause of the steady increase in driving resistance. To do.

  B) The driving force detected when the host vehicle is in the acceleration state and / or the constant speed driving state is insufficient (for example, smaller than a predetermined value) than the reference driving force, and the host vehicle decelerates. When the braking force detected in the state is excessive (for example, greater than a predetermined value) than the reference braking force, it is considered that the braking force is always applied to the vehicle as compared with the normal time. -1) When the difference between the braking force detected when the host vehicle is decelerating and the reference braking force (the excess braking force) is constant or proportional to the vehicle speed, the friction of the drive system steadily increases, thereby Judging that the running resistance (acceleration resistance) has also increased steadily, it is determined that the increase in driving system friction is the cause of the steady increase in running resistance, and B-2) When the host vehicle is in a deceleration state The difference between the detected braking force and the reference braking force (excess braking force) When proportional to the square of the speed, it is judged that the air resistance steadily increases, and thus the running resistance (acceleration resistance) also steadily increases, and the increase in air resistance causes the steady increase in running resistance. B-3) When the difference between the braking force detected when the host vehicle is decelerating and the reference braking force (the excess braking force) is proportional to the engine speed, the friction of the engine system is steady. Therefore, it is determined that the running resistance (acceleration resistance) has also increased steadily, and it is determined that the increase in engine system friction is the cause of the steady increase in running resistance.

  C) The driving force detected when the host vehicle is in the acceleration state and / or the constant speed traveling state is within a normal range with respect to the reference driving force (for example, the difference from the reference driving force is less than a predetermined value), and When the braking force detected when the host vehicle is decelerating is insufficient (for example, smaller than a predetermined value) than the reference braking force, the driving force is normal and only the braking force is insufficient. Therefore, for example, the braking force is steadily weakened by the fade of the brake, and it is judged that the running resistance (braking resistance) is also steadily increased, and the brake fade is the cause of the steady increase of the running resistance. judge.

  And D) the driving force detected when the host vehicle is in an acceleration state and / or a constant speed traveling state is within a normal range with respect to the reference driving force (the difference from the reference driving force is less than a predetermined value), and When the braking force detected when the host vehicle is decelerating is excessive (greater than a predetermined value) than the reference braking force, the driving force is normal and only the braking force is excessively effective. Then, it is determined that the braking force is steadily increased by the drag of the brake, thereby reducing the running resistance (braking resistance), and it is determined that the drag of the brake is the cause of the steady increase of the running resistance.

  E) The driving force detected when the host vehicle is in an acceleration state and / or a constant speed driving state is insufficient (for example, smaller than a predetermined value) than the reference driving force, and the host vehicle decelerates. When the braking force detected in the state is within a normal range with respect to the reference braking force (the difference from the reference braking force is less than a predetermined value), the driving force is only applied during acceleration and driving at a constant speed where the driving force is required. Because it is insufficient, it is judged that the engine output has been steadily reduced, and accordingly the running resistance (acceleration resistance) has also been steadily increased. Judge that there is.

  Further, in the example shown in FIG. 3, an improvement measure corresponding to each estimated fuel consumption deterioration factor is included in the fuel consumption deterioration factor determination map stored in the storage unit 102.

  For example, in case A of FIG. 3, the estimated cause of deterioration in fuel consumption is an increase in vehicle weight, so it can be improved by reducing the loading of unnecessary luggage. Similarly, in case B-1, maintenance (oil change and other general inspections) to reduce drive system friction, and in case B-2, measures to reduce air resistance (window closed, unnecessary) Case B-3, maintenance for reducing engine system friction (engine oil change and other general inspections), Case C by brake cooling, Case D-3 Improve the fuel efficiency by eliminating brake drag and, in case E, improving engine output (changing air cleaner, changing engine oil, checking / changing spark plug, etc.) It is considered possible.

  Returning to FIG. Next, the main control unit 104 calculates a loss energy amount (for example, in units of kilocalories) corresponding to the increase amount of the running resistance estimated to have increased steadily (S203).

  Then, the main control unit 104 receives message information including the cause of the estimated increase in steady running resistance and its improvement measures (advice for improvement) and the amount of energy lost due to the calculated steady running resistance increase. The information is presented to the driver through the providing unit 103 (S204).

  As a result, the driver can see that the fuel efficiency is steadily deteriorating due to a cause other than the driving operation, how much energy is lost thereby, and how to remove the cause (or It can be recognized whether it can be improved). Therefore, it is possible to give the driver the motivation and awareness to improve the fuel consumption by removing and improving the cause of the constant deterioration of the fuel consumption.

  Here, information presented as text information and / or voice messages to the driver by the information providing unit 103 is stored in the storage unit 102 in association with each estimated cause and / or improvement measure in advance in the form of a map.

  In addition, the main control unit 104 provides the driver with the loss energy amount as fuel (gasoline) consumption when converted into fuel consumption, for example, in liters so that the driver can understand it more intuitively. You may do it. In addition, in order to make the driver aware of not only the cost of fuel consumption but also the environment, the amount of gasoline consumed when the amount of energy lost due to steady increase in driving resistance was converted to fuel consumption was consumed in the engine. The amount of exhaust gas generated when (burned) is represented by typical values such as the amount of oxygen dioxide emissions and the amount of environmental pollutants contained in the exhaust gas. You may make it show. As a result, it is possible to give the driver motivation / consciousness to further improve fuel efficiency from the viewpoint of environmental load.

  As described above, according to the present embodiment, the vehicle driver is notified of the occurrence of the steady deterioration of fuel consumption due to a cause other than the driving operation, and the magnitude of the influence due to the steady deterioration of fuel consumption is presented. This can give the driver the motivation and awareness to improve the fuel efficiency by improving the cause of the fuel efficiency deterioration.

  In addition, according to the present embodiment, a countermeasure for removing or improving the estimated cause causing the deterioration of the presented steady fuel consumption is also presented. Thus, it is possible to easily take an appropriate response along the vehicle state of the host vehicle and / or the surrounding environment.

  Furthermore, according to the present embodiment, since the load on the environment due to the steady deterioration of the fuel efficiency is also presented to the driver, the driver is encouraged to improve the fuel efficiency from the viewpoint of environmental considerations. Can do.

  INDUSTRIAL APPLICABILITY The present invention can be used for a vehicle information providing apparatus that provides information for prompting a driver to drive economically. The appearance, weight, size, running performance, etc. of the vehicle to be mounted are not limited.

It is a schematic block diagram of the information provision apparatus for vehicles which concerns on one Example of this invention. It is a flowchart which shows the flow of the process by the information provision apparatus for vehicles which concerns on one Example of this invention. It is a figure which shows an example of the fuel consumption deterioration factor estimation map by the vehicle information provision apparatus which concerns on one Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Information provision apparatus for vehicles 101 State detection part 102 Storage part 103 Information provision part 104 Main control part

Claims (15)

A vehicle information providing device for providing information for improving fuel efficiency to a driver in a vehicle,
Detecting means for detecting a steady increase in running resistance;
An information providing device for a vehicle, comprising: information providing means for providing the driver with information for improving the fuel consumption when a steady increase in running resistance is detected by the detecting means. The vehicle information providing device according to claim 1,
The detection means detects a predetermined vehicle state, compares it with a corresponding predetermined reference state, and determines whether or not the running resistance has steadily increased based on the comparison result. Information provision device. The vehicle information providing device according to claim 2,
The vehicle information providing apparatus, wherein the detecting means detects a vehicle state or a vehicle surrounding environment state, and corrects the reference state based on the detected vehicle state or the vehicle surrounding environment state. The vehicle information providing device according to claim 2 or 3,
The detection means compares the predetermined vehicle state with the reference state when the host vehicle is in a deceleration state and in an acceleration state or a constant speed traveling state,
The information providing means provides the driver with different information according to the comparison result when the host vehicle is in a decelerating state and the comparison result when the host vehicle is in an accelerating state or a constant speed traveling state as information for improving the fuel consumption. A vehicular information providing apparatus characterized by that. The vehicle information providing device according to claim 4,
The predetermined vehicle state detected by the detecting means is a driving force when the host vehicle is in an acceleration state or a constant speed traveling state, and a braking force when the host vehicle is in a deceleration state.
The vehicle information providing apparatus according to claim 1, wherein the reference state is a reference driving force when the host vehicle is in an acceleration state or a constant speed driving state, and is a reference braking force when the host vehicle is in a deceleration state. The vehicle information providing device according to claim 5,
When the host vehicle is in an accelerating state or a constant speed traveling state, the driving force detected by the detecting unit is smaller than the reference driving force by a predetermined value and when the host vehicle is in a decelerating state, the detecting unit When the detected braking force is smaller than the reference braking force by a predetermined value, the information providing means provides the driver with information that prompts the driver to reduce the load capacity as information for improving the fuel consumption. A vehicular information providing apparatus characterized by that. The vehicle information providing device according to claim 5,
When the host vehicle is in an accelerating state or a constant speed traveling state, the driving force detected by the detecting unit is smaller than the reference driving force by a predetermined value and when the host vehicle is in a decelerating state, the detecting unit When the difference between the detected braking force and the reference braking force is less than a predetermined value, the information providing means uses the information prompting the driver to perform maintenance for improving the engine output as information for improving the fuel consumption. An information providing device for a vehicle, characterized in that it is provided. The vehicle information providing device according to claim 5,
When the host vehicle is in an accelerating state or a constant speed traveling state, the driving force detected by the detecting unit is smaller than the reference driving force by a predetermined value and when the host vehicle is in a decelerating state, the detecting unit The detected braking force is greater than the reference braking force by a predetermined value and the difference between the braking force detected by the detecting means and the reference braking force when the host vehicle is decelerating is constant or the vehicle speed. When proportional, the information providing means provides the driver with information for urging the driver to perform maintenance for reducing driveline friction as information for improving the fuel consumption. The vehicle information providing device according to claim 5,
When the host vehicle is in an accelerating state or a constant speed traveling state, the driving force detected by the detecting unit is smaller than the reference driving force by a predetermined value and when the host vehicle is in a decelerating state, the detecting unit The detected braking force is greater than the reference braking force by a predetermined value and the difference between the braking force detected by the detecting means and the reference braking force when the host vehicle is decelerating is the square of the vehicle speed. When proportional, the information providing means provides the driver with information that prompts the driver to take action for reducing air resistance as information for improving the fuel consumption. The vehicle information providing device according to claim 5,
When the host vehicle is in an accelerating state or a constant speed traveling state, the driving force detected by the detecting unit is smaller than the reference driving force by a predetermined value and when the host vehicle is in a decelerating state, the detecting unit The detected braking force is larger than the reference braking force by a predetermined value and the difference between the braking force detected by the detecting means and the reference braking force when the host vehicle is in a decelerating state is the engine speed. When proportional, the information providing means provides the driver with information for prompting the driver to perform maintenance for reducing engine friction as information for improving the fuel consumption. The vehicle information providing device according to claim 5,
The difference between the driving force detected by the detecting means when the host vehicle is in an accelerating state or a constant speed traveling state and the reference driving force is less than a predetermined value, and when the host vehicle is in a decelerating state, the detecting means When the detected braking force is smaller than the reference braking force by a predetermined value, the information providing means provides the driver with information prompting the driver to cool the brake as information for improving the fuel consumption. A vehicular information providing apparatus characterized by that. The vehicle information providing device according to claim 5,
The difference between the driving force detected by the detecting means when the host vehicle is in an accelerating state or a constant speed traveling state and the reference driving force is less than a predetermined value, and the detecting means is used when the host vehicle is in a decelerating state. When the detected braking force is larger than the reference braking force by a predetermined value, the information providing means uses the information that prompts the driver to check the brake drag as information for improving the fuel consumption. An information providing device for a vehicle, characterized in that it is provided. The vehicle information providing device according to any one of claims 1 to 12,
The information providing means calculates a loss energy amount due to a steady increase in running resistance detected by the detection means, and provides the calculated loss energy amount to the driver as part of the information for improving the fuel consumption. A vehicle information providing apparatus characterized by that. The vehicle information providing device according to claim 13,
The information providing device provides the vehicle with a value obtained by converting the calculated loss energy amount into a fuel consumption amount as part of the information for improving the fuel consumption. The vehicle information providing device according to claim 13,
The information providing means provides the driver with a value obtained by converting the calculated loss energy amount into an exhaust gas emission amount as part of the information for improving the fuel consumption.

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