JP2006133010A - Fuel information display unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To display information on fuel that has been consumed not in traveling. <P>SOLUTION: In an automobile provided with an air-conditioner for heating a cabin with an engine as the heat source, fuel consumed by the engine is computed as fuel consumed not for traveling, when the cabin is heated by the air conditioner, the engine is running, and the vehicle is parked. The computed fuel is displayed as the fuel consumption of air-conditioning in parallel with the amount of fuel consumed by the overall vehicle on a display installed in the cabin. It is thereby possible to notify the driver and the passengers, of the amount of fuel consumed not for traveling, after comparing with the amount of fuel consumed by the vehicle as a whole. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a fuel information display device, and more specifically, is consumed in an automobile having an internal combustion engine capable of outputting driving power and at least one operating device that operates using part of energy from the internal combustion engine. The present invention relates to a fuel information display device that displays information related to fuel.

Conventionally, as this type of fuel information display device, a device that calculates and displays how the fuel consumption of the vehicle changes when the setting of the vehicle speed or the temperature in the passenger compartment is changed has been proposed (for example, Patent Document 1). In this device, when the vehicle speed or the temperature in the passenger compartment is changed, the fuel consumption of the vehicle is calculated and displayed based on the total weight of the vehicle, the temperature in the passenger compartment, the temperature outside the passenger compartment, the vehicle speed, and the like.
JP 2003-166868 A

  The fuel consumption of a vehicle varies depending on the running state, but also varies depending on the operating state of an air conditioner using an engine as a heat source. In a hybrid vehicle that can be driven by a motor, when the system is started in a cold season such as winter, the engine may be started by an air conditioner and the operation may be continued because the passenger compartment needs to be heated. In this case, although the fuel consumed for running is small, the fuel consumption of the vehicle as a whole is significantly reduced. Such a situation is the same for a vehicle that performs a so-called idle stop.

  One object of the fuel information display device of the present invention is to display information about fuel consumed without being used for traveling. Another object of the fuel information display device of the present invention is to display information about fuel consumed for traveling and fuel consumed for the entire vehicle together with information about fuel consumed without traveling.

  The fuel information display device of the present invention employs the following means in order to achieve at least a part of the above object.

The fuel information display device of the present invention comprises:
A fuel information display device for displaying information on fuel consumed in an automobile having an internal combustion engine capable of outputting driving power and at least one operating device that operates using part of the energy from the internal combustion engine. And
Fuel information adjusting means for adjusting fuel information including non-traveling fuel consumption information related to fuel consumed without being used for traveling among fuel consumed in the internal combustion engine;
Fuel information display means arranged in a passenger compartment of the vehicle for displaying fuel information adjusted by the fuel information adjustment means;
It is a summary to provide.

  In the fuel information display device according to the present invention, fuel information including fuel consumption information for non-travel related to fuel consumed without being used for traveling is adjusted among fuel consumed by an internal combustion engine capable of outputting power for traveling. The adjusted fuel information is displayed by the fuel information display means arranged in the passenger compartment of the vehicle. Therefore, it is possible to display information on fuel consumed without being used for running out of fuel consumed in the internal combustion engine, and to inform the passenger in the passenger compartment of the information.

  In such a fuel information display device of the present invention, the fuel information adjustment means is means for adjusting total fuel consumption information relating to fuel consumed in the internal combustion engine as one of the fuel information, and the fuel information display means is the fuel information display means. The non-traveling fuel consumption information and the total fuel consumption information may be displayed side by side. In this way, non-travel fuel consumption information is displayed side by side with total fuel consumption information, so information on fuel consumed without being used for travel is reported to the passengers in the passenger compartment based on comparison with total consumption. Can do.

  Further, in the fuel information display device of the present invention, the fuel information adjusting means may include travel fuel consumption information relating to fuel consumed for travel out of the fuel consumed by the internal combustion engine as one of the fuel information. The fuel information display means may be means for displaying the non-travel consumption fuel information and the travel consumption fuel information side by side. By doing so, the non-traveling fuel consumption information is displayed side by side with the traveling fuel consumption information, so that the information regarding the fuel consumed without being used for traveling is compared with the information regarding the fuel consumed while traveling. You can inform the passengers in the passenger compartment above.

  Furthermore, in the fuel information display device of the present invention, the fuel information adjustment means is means for adjusting the fuel information as the amount of fuel consumed per unit time or the amount of fuel consumed per unit distance. It can also be a means for adjusting the fuel information as a percentage of the fuel consumed by the internal combustion engine. Further, it may be a means for adjusting a part of the fuel information as a moving distance per unit fuel.

Alternatively, in the fuel information display device of the present invention, the fuel information adjustment means is means for adjusting a plurality of fuel information in a plurality of units, and the fuel information display means is a plurality of fuels adjusted by the fuel information adjustment means. It may be a means for switching and displaying information based on the operation of the operator. In this way, fuel information can be displayed using a desired unit. In this case, the plurality of units are any one or a combination of a fuel amount per unit distance, a fuel amount per unit time, a movement distance amount per unit fuel, and a ratio to the fuel consumed by the internal combustion engine. You can also

  Next, the best mode for carrying out the present invention will be described using examples.

  FIG. 1 is a configuration diagram showing an outline of the configuration of a hybrid vehicle 20 equipped with an information display device 96 as an embodiment of the present invention. In the hybrid vehicle 20 of the embodiment, as shown in the figure, the power from the engine 22 controlled by an engine electronic control unit (hereinafter referred to as engine ECU) 24 is transmitted as necessary by a planetary gear 30 and two motors MG1 and MG2. A power output device 21 that converts torque with charging and discharging of the battery 50 and outputs the torque to the drive shaft 32 connected to the axle, an air conditioner 90 that can heat the passenger compartment 26 using the engine 22 as a heat source, and a passenger compartment The display 97 is arranged in the approximate center of the installation panel in front of the driver's seat 26 and displays information related to the vehicle, which can perform various input operations, calculates the display content of the display 97, and transmits and receives information. An information display device 9 including a unit (hereinafter referred to as a display ECU) 98. If, and an electronic control unit 70 that controls the entire vehicle.

  The power output device 21 is operated by switching between motor travel that travels only with the power from the motor MG2 attached to the drive shaft 32 and engine travel that travels with charging and discharging of the battery 50 using the power from the engine 22. can do. The power output device 21 is basically controlled by the electronic control unit 70 so as to increase the energy efficiency in traveling, but the engine 22 is started separately from the energy efficiency in traveling due to the necessity of a heat source by the air conditioner 90. It also receives control.

  The electronic control unit 70 uses the ignition signal from the ignition switch 80, the shift position SP from the shift position sensor 82 that detects the operation position of the shift lever 81, and the accelerator pedal 83 as data for controlling the power output device 21. Accelerator opening degree Acc from accelerator pedal position sensor 84 that detects the amount of depression, brake pedal position BP from brake pedal position sensor 86 that detects the amount of depression of brake pedal 85, vehicle speed V from vehicle speed sensor 88, and outside air temperature sensor 89 The outside temperature Tout from is input. The electronic control unit 70 exchanges various control signals and data with an air conditioning electronic control unit (hereinafter referred to as an air conditioning ECU) 94 and a display ECU 98 that control the engine ECU 24 and the air conditioner 90.

  The air conditioner 90 is attached to the cooling system of the engine 22 and exchanges heat with cooling water. The air conditioner 90 sucks outside air and air in the passenger compartment 26 toward the heat exchanger and uses the heat exchanger 91. A blower 92 that blows air warmed by heat exchange into the passenger compartment 26, a switching mechanism 93 that switches between outside air or air in the passenger compartment 26, and an electronic control that controls the entire apparatus. It includes an air conditioning ECU 94 that exchanges data with the unit 70 and the display ECU 98. The air conditioner 90 uses the information display device 96 as a device for inputting settings. The air conditioning ECU 94 inputs the on / off signal ACSW, the target room temperature T *, the passenger room temperature Tin, the outside air temperature Tout, and the like input from the display 97 from the display ECU 98 via an input port (not shown), and based on these input signals The blower 92 and the switching mechanism 93 are controlled so that the room temperature Tin becomes the set target room temperature T *. The air conditioning ECU 94 transmits information related to the operation of the air conditioner 90 to the electronic control unit 70.

  Next, the start and stop of the engine 22 in the hybrid vehicle 20 configured as described above will be described. The engine 22 is started and stopped by the power required for traveling based on the accelerator opening Acc and the vehicle speed V according to the depression amount of the accelerator pedal 83 of the driver by the electronic control unit 70 and the power required for charging and discharging the battery 50. Is determined by a combination of a determination based on the required vehicle power, which is mainly the sum of the above, and a determination based on securing a heat source necessary for heating the passenger compartment 26 by the air conditioner 90, and based on the determination, the engine ECU 24 Executed. In the embodiment, the engine 22 is started when the start of the engine 22 is determined by either the determination based on the vehicle required power or the determination based on securing the heat source for heating, and the stop of the engine 22 is determined by both the determinations. When it is done, the engine 22 is stopped. The determination based on the vehicle required power is performed by comparing the vehicle required power with a threshold having hysteresis, and the determination based on securing the heat source for heating compares the cooling water temperature of the engine 22 with the threshold having hysteresis. It is done by doing. In the embodiment, when the engine 22 is started based on the determination based on securing the heat source for heating, the motor travel is switched to the engine travel. As a result, when the passenger compartment 26 is heated by the air conditioner 90 and the vehicle is stopped while the engine 22 is operated, the fuel consumed by the engine 22 is consumed without being used for traveling. Can think.

  Next, the contents of the screen displayed on the display 97 will be described. The display 97 displays various screens for transmitting information related to the vehicle, one of which is a fuel consumption display screen for displaying information related to fuel consumption. In the fuel consumption display screen of the embodiment, the instantaneous fuel consumption [km / L] representing the fuel consumption of the entire vehicle per predetermined time (for example, 10 min) and the fuel consumed by the entire vehicle per unit time (for example, 1 h) The overall consumption amount F [L], which is the amount, and the air-conditioning consumption amount Fac [L], which is the amount of fuel consumed by operating the engine 22 for heating operation of the air conditioner 90 per unit time, are arranged. There are two display screens: a displayed liter display screen and a percentage display screen displaying an air conditioning fraction Rac [%], which is the ratio of the air conditioning consumption Fac to the total consumption F instead of the air conditioning consumption Fac. Both of them are provided with a changeover switch 99 that can switch the screens by the operation of the operator. FIG. 2 shows an example of a liter display screen, and FIG. 3 shows an example of a percentage display screen. The total consumption F, the air-conditioning consumption Fac, and the air-conditioning ratio Rac are calculated by a fuel consumption calculation routine shown in FIG.

  In the fuel consumption calculation routine, first, data such as the on / off signal ACSW, the target room temperature T *, the passenger room temperature Tin from the room temperature sensor 95, the vehicle speed V from the vehicle speed sensor 88, the rotational speed Ne of the engine 22, the fuel injection amount Δf, and the like. The input process is executed (step S100). Here, the on / off signal ACSW and the target room temperature T * are input to the display 97 by the operator and stored in a RAM (not shown) of the display ECU 98. Further, the rotational speed Ne of the engine 22 is assumed to be input by communication using a signal calculated by the engine ECU 24 using a signal detected by a crank position sensor attached to a crankshaft of the engine 22 (not shown). The fuel injection amount Δf is obtained by multiplying the time during which fuel is injected from an injector (not shown) of the engine 22 between the previous execution of this routine and the current execution of this routine by the injection amount per time of the injector. The data is transmitted from the engine ECU 24. When data is thus input, whether the on / off signal ACSW is on, whether the target room temperature T * is higher than the passenger room temperature Tin, whether the engine speed Ne is not 0, the vehicle speed V is a value. It is determined whether it is 0 (steps S102 to S108). As described above, the fuel is consumed without being used for traveling because the passenger compartment 26 is heated by the air conditioner 90 and the vehicle is stopped while the engine 22 is operated. By making these four determinations, it is possible to determine whether fuel is consumed without being used for traveling. When the on / off signal ACSW is off, the target room temperature T * is lower than the passenger room temperature Tin, the engine speed Ne is 0, or the vehicle speed V is not 0, the heating operation of the air conditioner 90 is performed. Therefore, it is determined that the fuel is not being consumed, and the fuel injection amount Δf is added to the total consumption amount F previously calculated in this routine, and the air-conditioning consumption amount Fac previously calculated in this routine is air-conditioned. The air consumption fraction Fac is calculated by dividing the air conditioning consumption Fac by the total consumption F (step S114), and the calculated total consumption F, the air conditioning consumption Fac, and air conditioning. The fraction Rac is stored at a predetermined address in a RAM (not shown) of the display ECU 98 (step S116), and this routine is terminated. On the other hand, when the on / off signal ACSW is on, the target room temperature T * is higher than the passenger room temperature Tin, the engine speed Ne is not 0, and the vehicle speed V is 0, the heating operation of the air conditioner 90 is performed. Therefore, the fuel injection amount Δf is added to the total consumption amount F and the air conditioning consumption amount Fac previously calculated in this routine (step S112), and the air conditioning fraction Rac is calculated. (Step S114), these are stored in a predetermined address of a RAM (not shown) of the display ECU 98 (Step S116), and this routine is finished. The total consumption amount F, the air-conditioning consumption amount Fac, and the air-conditioning proportion Rac stored in this way are displayed on the display 97 according to the changeover of the changeover switch 99.

  According to the fuel information display device 96 of the embodiment described above, since the air-conditioning consumption Fac is displayed on the display 97 installed in the passenger compartment 26, the amount of fuel consumed without being used for traveling is shown in the passenger compartment. 26 passengers can be notified. In addition, since the total consumption amount F and the air-conditioning consumption amount Fac are displayed side by side, the amount of fuel consumed without being used for traveling is informed to the occupant after comparison with the amount of fuel consumed by the entire vehicle. be able to. Further, since the air-conditioning consumption amount Fac and the air-conditioning proportion Rac are switched and displayed, it is possible to inform the occupant of the proportion of the amount of fuel consumed without being used for traveling.

  In the fuel information display device 96 of the embodiment, the total consumption F per unit time and the air-conditioning consumption Fac or the air-conditioning fraction Rac are displayed side by side. It is also possible to calculate the fuel consumption amount Fr for traveling as the difference in the consumption amount Fac, and display the fuel consumption amount Fr for traveling and the air-conditioning consumption amount Fac side by side. The amount Fr and the air-conditioning consumption amount Fac may be displayed side by side. Further, the travel ratio Rr, which is the ratio of the travel fuel consumption Fr to the total consumption F, may be calculated, and the travel ratio Rr and the air conditioning ratio Rac may be displayed side by side. The amount F, the travel ratio Rr, and the air conditioning ratio Rac may be displayed side by side. Furthermore, these may be switched and displayed.

  In the fuel information display device 96 according to the embodiment, the total consumption F per unit time and the air-conditioning consumption Fac or the air-conditioning fraction Rac are displayed side by side. The consumption amount Fac or the air conditioning fraction Rac may be displayed side by side. Furthermore, these may be switched and displayed.

  In the fuel information display device 96 of the embodiment, in order to determine whether or not the fuel is consumed for the heating operation of the air conditioner 90, the condition that the vehicle speed V is 0 or the rotational speed Ne of the engine 22 is 0. It is determined whether or not the condition that the ON / OFF signal ACSW is ON, and whether or not the target room temperature T * satisfies the condition that the target room temperature T * is higher than the occupant room temperature Tin. Good.

  In the hybrid vehicle 20 equipped with the fuel information display device 96 of the embodiment, when a driving request is made by the air conditioner 90 during motor driving, the motor driving is switched to engine driving. The engine 22 may be operated for the air conditioner 90 while continuing the motor running. In this case, instead of the condition that the vehicle speed V is 0, the condition that the vehicle speed V is 0 or the power required for traveling is output from the motor MG2 is the fuel for the heating operation of the air conditioner 90. It may be used as a condition for determining whether or not it is consuming.

  In the hybrid vehicle 20 equipped with the fuel information display device 96 of the embodiment, the power output from the engine 22 is torque-converted by the planetary gear 30 and the two motors MG1, MG2 and output to the drive shaft 32 connected to the axle. The apparatus 21 is provided. However, as long as the apparatus 21 includes a power system that outputs power from the engine and the motor and can run the motor depending on a traveling condition, and an air conditioner that performs heating using the heat generated by the engine. It is good also as what is mounted in the motor vehicle of what kind of composition. Moreover, it is good also as what is mounted in a motor vehicle provided with the motive power system which outputs motive power from an engine, and performs an idle stop while stopping, and the air-conditioning apparatus which heats using the heat_generation | fever of an engine.

  The best mode for carrying out the present invention has been described with reference to the embodiments. However, the present invention is not limited to these embodiments, and various modifications can be made without departing from the gist of the present invention. Of course, it can be implemented in the form.

  The present invention is applicable to the automobile industry and the like.

It is a block diagram which shows the outline of a structure of the hybrid vehicle 20 carrying the information display apparatus 96 as one Example of this invention. It is explanatory drawing which shows an example of the liter display screen which the display 97 of the information display apparatus 96 of an Example displays. It is explanatory drawing which shows an example of the percentage display screen which the display 97 of the information display apparatus 96 of an Example displays. It is a flowchart which shows an example of the fuel consumption calculation routine performed by display ECU98 of an Example.

Explanation of symbols

20 hybrid vehicle, 21 power output device, 22 engine, 24 engine ECU, 26 passenger compartment, 30 planetary gear, 32 drive shaft, 50 battery, 70 electronic control unit, 72 CPU, 74 ROM, 76 RAM, 80 ignition switch, 81 shift Lever, 82 shift position sensor, 83 accelerator pedal, 84 accelerator pedal position sensor, 85 brake pedal, 86 brake pedal position sensor, 88 vehicle speed sensor, 89 outside air temperature sensor, 90 air conditioner, 91 heat exchanger, 92 blower, 93 switching mechanism , 94 Air conditioning ECU, 95 Room temperature sensor, 96 Information display device, 97 Display, 98 Display ECU, 99 Changeover switch.

Claims (8)

A fuel information display device for displaying information on fuel consumed in an automobile having an internal combustion engine capable of outputting driving power and at least one operating device that operates using part of the energy from the internal combustion engine. And
Fuel information adjusting means for adjusting fuel information including non-traveling fuel consumption information related to fuel consumed without being used for traveling among fuel consumed in the internal combustion engine;
Fuel information display means arranged in a passenger compartment of the vehicle for displaying fuel information adjusted by the fuel information adjustment means;
A fuel information display device comprising: The fuel information display device according to claim 1,
The fuel information adjusting means is means for adjusting total consumed fuel information relating to fuel consumed in the internal combustion engine as one of the fuel information.
The fuel information display means is means for displaying the non-travel fuel consumption information and the total fuel consumption information side by side. The fuel information display device according to claim 1 or 2,
The fuel information adjusting means is means for adjusting fuel consumption information for traveling related to fuel consumed for traveling out of fuel consumed by the internal combustion engine as one of the fuel information.
The fuel information display means is means for displaying the non-travel consumption fuel information and the travel consumption fuel information side by side.   4. The fuel information display device according to claim 1, wherein the fuel information adjustment unit is a unit that adjusts the fuel information as a fuel amount consumed per unit time or a fuel amount consumed per unit distance. 5.   The fuel information display device according to any one of claims 1 to 3, wherein the fuel information adjusting means is means for adjusting the fuel information as a ratio to the fuel consumed by the internal combustion engine.   4. The fuel information display device according to claim 1, wherein the fuel information adjusting means is means for adjusting a part of the fuel information as a moving distance per unit fuel. The fuel information display device according to any one of claims 1 to 6,
The fuel information adjusting means is means for adjusting a plurality of fuel information with a plurality of units,
The fuel information display means is means for switching and displaying a plurality of pieces of fuel information adjusted by the fuel information adjustment means based on an operation of an operator. 8. The plurality of units are any one or a combination of a fuel amount per unit distance, a fuel amount per unit time, a movement distance amount per unit fuel, and a ratio with respect to fuel consumed in the internal combustion engine. Fuel information display device.

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