JP2013087635A - Fuel consumption evaluation information display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display evaluation results of a fuel saving operation of a driver without disturbing the driver's operation without delay, thus leading to the subsequent fuel saving operation.SOLUTION: A display part 20 for displaying evaluation results of a fuel saving operation and an input part 22 are provided in a combination meter 10 of a dashboard. The display part 20 comprises an evaluation result display part 23 and a total average value display part 32. The evaluation result display part 23 displays evaluation results for each fuel consumption evaluation item for each running section of four fuel consumption evaluation items after finishing each running section. The total average value display part 32 displays a total average value for each fuel consumption evaluation item after finishing one operation section after the operation section. Thereby, the driver's operation is not disturbed. The input part 22 is used for inputting a target value of the driver or for selecting a fuel consumption evaluation item to be displayed.

Description

  The present invention relates to a display device that displays an evaluation result of a driver's fuel-saving driving, and that is capable of reliably grasping the current state of the driver for fuel-saving driving without disturbing the driver's driving.

  In recent years, the need for fuel-saving driving is increasing in vehicles, particularly large vehicles such as trucks and buses that consume a large amount of fuel, from the standpoint of measures against rising fuel costs and global environmental protection. Therefore, many control devices for supporting the driver's fuel-saving driving, and display devices for evaluating the driver's fuel-saving driving, displaying the evaluation result, and causing the driver to recognize are proposed. For example, Patent Document 1 discloses a low fuel consumption driving support device that evaluates the fuel consumption during traveling and notifies the driver of the evaluation result in real time.

  Patent Document 2 discloses that a display device that displays vehicle information such as fuel efficiency is provided on a combination meter installed on a dashboard. The display format of this vehicle information makes it easier for the driver to visually recognize by sequentially changing to an enlarged number, bar graph, icon, color display as the vehicle speed increases while the vehicle is running, The driver's burden is reduced.

JP 2011-137443 A JP 2006-184222 A

  In both Patent Document 1 and Patent Document 2, since the evaluation result or the vehicle information regarding the fuel-saving driving is notified or displayed while the vehicle is traveling, the driving of the driver is hindered and there is a problem in safety. In particular, when the vehicle speed is high, there is a problem that the driver cannot visually observe with a sufficient margin and places a burden on the driver, and the recognition degree of the driver with respect to the evaluation result or vehicle information decreases.

  In view of the problems of the conventional technology, the present invention displays the evaluation result related to the fuel-saving driving of the driver so as not to hinder the driving of the driver, ensuring safety, and the evaluation result in a timely manner without delay. The purpose of the display is to improve the next fuel-saving driving.

  In order to achieve such an object, the fuel efficiency evaluation information display device of the present invention includes a sensor for detecting start and stop of a vehicle, and a fuel efficiency evaluation set in a travel section from the start to the stop of the vehicle detected by these sensors. An evaluation result calculation means for calculating an evaluation result from a measurement value related to the fuel consumption evaluation item, and an average value provided near the driver's seat and displaying the evaluation result calculated by the evaluation result calculation means when the vehicle is stopped And a display unit. In the device of the present invention, the sensor detects a travel section from start to stop of the vehicle and when the vehicle is stopped. Then, an evaluation result in the travel section is calculated by the evaluation result calculation means from the measured values related to the fuel consumption evaluation items detected by the various sensors, and the evaluation result is displayed on the evaluation result display unit when the vehicle is stopped.

  In this way, by displaying the evaluation result when the vehicle is stopped, it is possible to grasp the evaluation result related to the fuel-saving driving of the driver in a safe state without hindering the driving of the driver. In addition, since the driver can grasp the evaluation result of the previous driving section without delay before arriving at the destination of the operation, the driver recognizes his current driving evaluation and improves fuel efficiency from the next driving section. Driving toward is possible.

  For example, a vehicle speed sensor can be used as a sensor that detects the start and stop of the vehicle. Using a vehicle speed sensor, it is determined that the time when the vehicle speed exceeds the set vehicle speed is a start, and the time when the vehicle speed falls below the set vehicle speed is determined as a stop. Alternatively, the time when the ignition switch is turned on may be determined as starting, and the time when the ignition switch is turned off may be determined as stopping.

  In the device of the present invention, an operation end detection sensor for detecting the operation end of the vehicle, and a fuel consumption evaluation item in the operation section from the vehicle start time detected by the start detection sensor to the operation end time detected by the operation end detection sensor. It is good to have the total average value calculation means which calculates a total average value, and the total average value display part which displays this total average value at the time of the end of operation of vehicles. Thus, by displaying the total average value at the end of the operation, the driver's current fuel-saving driving evaluation can be grasped in a timely manner in a safe state without hindering the driver's driving. In addition, as a calculation method of a total average value, calculation methods, such as a simple average or a weighted average, can be used suitably, for example.

  When the ignition switch is used as the operation end detection sensor and the ignition switch-off time is used to determine whether the operation of the vehicle has stopped, the timer that continues the display of the total average value display at least for the set time after turning off the ignition switch It is good to have. As a result, even after the engine has stopped, the overall average value can be confirmed with a margin, and the evaluation result of the fuel-saving operation can be surely recognized, leading to the improvement of the next fuel-saving operation. In this case, the evaluation result display unit may continue to display the evaluation result by a timer.

  The device of the present invention may be provided with an input device for inputting a target value of an evaluation item for fuel-saving driving or selecting a fuel efficiency evaluation item to be displayed on the evaluation result display unit from among the set fuel efficiency evaluation items. Accordingly, the driver's willingness to reach the target value can be increased, or by selecting the fuel consumption evaluation item he / she wants to check himself / herself, the fuel saving driving can be improved.

  According to the device of the present invention, for each travel section from the start to the stop of the vehicle, the evaluation result calculation means calculates the evaluation result relating to the fuel-saving driving, and after traveling in the travel section, the average result is displayed by the evaluation result display means. Since the value is displayed, the driver's current fuel-saving driving evaluation can be grasped in a safe state without hindering the driver's driving. In addition, since the driver can grasp the evaluation result of the previous driving section without delay before arriving at the destination of the operation, the driver can recognize the driving evaluation and drive for improving fuel economy from the next driving section. Is possible.

It is an arrangement plan of a combination meter concerning one embodiment of the device of the present invention. It is a block diagram which shows the apparatus structure of the said embodiment. It is a flowchart which shows an operation procedure. It is a diagram which shows the vehicle running example of the said embodiment. (A)-(G) is a figure which shows the example of a display of the conventional fuel consumption evaluation result, respectively.

  Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the component parts described in this embodiment are not intended to limit the scope of the present invention to that unless otherwise specified.

  An embodiment of the device of the present invention will be described with reference to FIGS. FIG. 1 shows a combination meter 10 provided on a dashboard in a cab of a vehicle. In the combination meter 10, a vehicle speedometer 12 is disposed on the left side, and a fuel gauge 14 is provided on the right side. And the display part 20 which displays the evaluation result of the fuel-saving driving | operation of a driver in the center, and the input part 22 are provided below the display part 20. FIG.

  The display unit 20 includes an evaluation result display unit 23 including four display screens 24, 26, 28 and 30. These display screens show the average fuel consumption in one traveling section (from the time when the vehicle speed starts traveling until the vehicle speed becomes less than 1 km / hr), the number of accelerator operations in one traveling section, and the engine speed in one traveling section. Evaluation items indicating the fuel-saving driving degree, such as the number of times that the threshold is exceeded, the number of braking operations in one traveling section, or the number of clutch operations in one traveling section, are selectively displayed.

  Further, the display unit 20 displays the evaluation result display unit 23 in one operation section of the vehicle from when the ignition switch is turned on and the operation of the vehicle is started until the ignition switch is turned off and the operation of the vehicle ends. A total average value display unit 32 for displaying a total average value for each of the four displayed fuel consumption evaluation items is provided. The input unit 22 is used by the driver to input a target value of the fuel consumption evaluation item displayed on the evaluation result display unit 23 or to select a fuel consumption evaluation item displayed on the evaluation result display unit 23.

  FIG. 2 shows a configuration of the display device 18 of the present embodiment. In FIG. 2, the ECU 34 controls the entire equipment provided in the vehicle. The ECU 34 receives measurement values of various sensors, which will be described later, and an evaluation result calculation unit 36 that calculates evaluation results in one travel section of the four fuel consumption evaluation items displayed on the evaluation result display unit 23 from these measurement values. A total average value calculation unit 38 for calculating a total average value of the four fuel consumption evaluation items in one operation section, and an average value display unit 23 for a set time after the ignition switch is turned off after the vehicle operation section ends. And a timer 39 for continuing the display of the total average value display section 32. As a calculation method of the total average value in the total average value calculation unit 38, for example, a calculation method such as a simple average or a weighted average can be appropriately used.

  The vehicle speed information is input to the ECU 34 from a vehicle speed sensor 40 that detects the vehicle speed based on the rotational speed of the axle shaft. Further, the number of accelerator operations is input to the ECU 34 from the accelerator operation sensor 42. Further, the engine speed is input from the engine speed sensor 44 to the ECU 34. The number of brake operations is input to the ECU 34 from the brake operation sensor 46. Further, the number of clutch operations is input from the clutch operation sensor 48 to the ECU 34. In addition, the fuel injection amount is input from the fuel injection device 50 to the ECU 34, and an ON signal or an OFF signal of the ignition switch 52 is input from the ignition switch 52.

  The evaluation result calculation unit 36 calculates the evaluation result of each fuel consumption evaluation item displayed on the evaluation result display unit 23 based on the detection value of each sensor and other signals input to the ECU 34. The evaluation results are displayed on the four display screens 24, 26, 28 and 30 for each fuel efficiency evaluation item. The total average value calculation unit 38 calculates the total average value of the fuel consumption evaluation items displayed on the four display screens 24, 26, 28, and 30 when the operation of the vehicle is finished. The total average value is displayed on the total average value display unit 32.

  FIG. 3 shows an operation procedure from the start of the vehicle to the end of the operation, and FIG. 4 shows an example of traveling of the vehicle. In FIG. 3, first, before starting the vehicle, the driver sets his / her target value for fuel-saving driving or selects a fuel efficiency evaluation item displayed on the display unit 20 (S10). Here, as the four fuel consumption evaluation items displayed on the display unit 20, for example, the fuel consumption, the number of accelerator operations, the number of engine heights, and the number of brake operations are selected.

  Next, the ignition switch 52 is turned on to start the vehicle (S12). When the vehicle travels in the traveling section 1 (see FIG. 4) and then detects that the brake operation is performed by the brake operation sensor 46, and the vehicle speed sensor 40 detects that the vehicle speed is less than 1 km / hr, It is determined that the vehicle speed has stopped (S14). At this time, the evaluation result calculation unit 36 calculates the evaluation result of each fuel consumption evaluation item in the traveling section 1, and displays the evaluation result on the display screens 24, 26, 28 and 30 (S16).

  Next, when the ignition switch is not turned off (S18), the vehicle starts again and travels in the travel section 2. And it returns to S14 and repeats S14 and S16. That is, when the vehicle travels in the traveling section 2 and stops, the evaluation result calculation unit 36 calculates the evaluation result of each fuel consumption evaluation item and displays them on the display screens 24, 26, 28 and 30. Similarly, after traveling in the travel section 3, the average value of each fuel consumption evaluation item of the travel section 3 is displayed on the display screens 24, 26, 28 and 30.

After the vehicle travels in the travel section 3, it is considered that one operation section is completed when the vehicle stops and the ignition switch 52 is turned off (S18). At this time, the overall average value calculation unit 38 calculates the overall average value of the entire operation section for each fuel consumption evaluation item displayed on the display screens 24, 26, 28, and 30. It displays on the display part 32 (S20). In FIG. 4, A ₀ is the target fuel consumption input by the driver before the operation, and A ₁ , A _2, and A ₃ are the average fuel consumption calculated for each traveling section and displayed on the display unit 20.

  According to this embodiment, by displaying each evaluation result indicating the fuel-saving driving degree when the vehicle is stopped, the driver's current fuel-saving driving evaluation is delayed in a safe state without hindering the driver's driving. I can grasp without. In addition, since the driver can grasp the fuel-saving driving evaluation of the previous driving section before arriving at the destination of the operation, it is necessary to recognize the driver's own evaluation and improve fuel efficiency from the next driving section. Driving becomes possible.

  Further, when the ignition switch 52 is turned off, it is determined that the operation of the vehicle has ended, and at the end of the operation, an overall average value of the entire operation section is calculated and displayed for each fuel consumption evaluation item. Therefore, the driver's current fuel-saving driving evaluation can be grasped in a timely manner in a safe state without hindering the driver's driving.

  In addition, after turning off the ignition switch 52, a timer 39 is provided to continue the display of the display screens 24, 26, 28 and 30 and the total average value display section 32 for a set time, so even after the engine has stopped, The driver can confirm the evaluation result and the overall average value with a margin, and can surely recognize the evaluation result of the driver's own fuel-saving driving.

  Furthermore, the input unit 22 allows the driver to input a target value for fuel-saving driving, or to select a fuel efficiency evaluation item, so that the difference between the driver's target and actual results becomes clear, and the driver's willingness to reach the target value is achieved. Can be increased. In addition, since the evaluation result of the fuel consumption evaluation item that the driver wants to confirm can be selected by himself / herself, it is possible to improve the fuel saving driving.

  In this embodiment, four items of fuel consumption, the number of times of accelerator operation, the number of times of engine operation, and the number of times of brake operation are selected as the fuel consumption evaluation items. Instead of one of these fuel consumption evaluation items, the clutch per driving section is selected. The number of operations may be selected. Further, the fuel consumption evaluation items may not be four items, and the number of evaluation items can be selected as appropriate.

  Various methods for displaying the evaluation results on the display screens 24, 26, 28 and 30 can be selected. For example, FIG. 4 of Patent Document 2 discloses various display methods. An example of this display is shown in FIG. 5A shows a display method using numbers having a standard size, and FIG. 5B shows a display method using enlarged numbers. (C) is a display method using a bar graph, and (D) and (E) are display methods using icons. (F) is a display method using both icons and color display, and (G) is a display method in which the display luminous intensity is lowered. In the present invention, these display methods can be appropriately employed.

According to the present invention, the evaluation result of the driver's fuel-saving driving can be displayed so as not to hinder the driving of the driver, the safety can be ensured, and the driving result of the driver can be grasped in a timely and clear manner.

DESCRIPTION OF SYMBOLS 10 Combination meter 12 Vehicle speed meter 14 Fuel gauge 18 Display apparatus 20 Display part 22 Input part 23 Evaluation result display part 24, 26, 28, 30 Display screen 32 Total average value display part 34 ECU
36 Evaluation Result Calculation Unit 38 Total Average Value Calculation Unit 39 Timer 40 Vehicle Speed Sensor 42 Acceleration Operation Sensor 44 Engine Speed Sensor 46 Brake Operation Sensor 48 Clutch Operation Sensor 50 Fuel Injection Amount 52 Ignition Switch

Claims (4)

A start detection sensor for detecting the start of the vehicle;
A stop detection sensor for detecting the stop of the vehicle;
In the travel section from the time of vehicle start detected by the start detection sensor to the time of vehicle stop detected by the stop detection sensor, the evaluation result is obtained from the measured value related to the fuel efficiency evaluation item for the set fuel efficiency evaluation item. An evaluation result calculating means for calculating;
A fuel efficiency evaluation information display device, comprising: an evaluation result display unit provided near a driver's seat and displaying an evaluation result calculated by the evaluation result calculation means when the vehicle is stopped. An operation end detection sensor for detecting the end of operation of the vehicle;
A total average value calculating means for calculating a total average value for each fuel consumption evaluation item in an operation section from a vehicle start time detected by the start detection sensor to an operation end time detected by the operation end detection sensor;
The fuel consumption evaluation information display device according to claim 1, further comprising: a total average value display unit that displays the total average value at the end of operation of the vehicle. The operation end detection sensor is an ignition switch, and the time when the ignition switch is turned off is regarded as the operation end,
The fuel consumption evaluation information display device according to claim 2, further comprising a timer that continues to display at least the total average value display section for a set time after the ignition switch is turned off.   An input device is provided for inputting a target value of an evaluation item for fuel-saving driving or selecting a fuel consumption evaluation item to be displayed on the evaluation result display unit from among the set fuel consumption evaluation items. The fuel consumption evaluation information display device according to any one of items 1 to 3.

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