WO2016047463A1 - 車両の燃料残量警告装置 - Google Patents
車両の燃料残量警告装置 Download PDFInfo
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- WO2016047463A1 WO2016047463A1 PCT/JP2015/075817 JP2015075817W WO2016047463A1 WO 2016047463 A1 WO2016047463 A1 WO 2016047463A1 JP 2015075817 W JP2015075817 W JP 2015075817W WO 2016047463 A1 WO2016047463 A1 WO 2016047463A1
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- remaining amount
- fuel
- engine
- vehicle
- amount warning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/3005—Details not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/3011—Controlling fuel injection according to or using specific or several modes of combustion
- F02D41/3017—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D45/00—Electrical control not provided for in groups F02D41/00 - F02D43/00
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/10—Road Vehicles
- B60Y2200/12—Motorcycles, Trikes; Quads; Scooters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2300/00—Purposes or special features of road vehicle drive control systems
- B60Y2300/43—Control of engines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2302/00—Responses or measures related to driver conditions
- B60Y2302/03—Actuating a signal or alarm device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2400/00—Control systems adapted for specific engine types; Special features of engine control systems not otherwise provided for; Power supply, connectors or cabling for engine control systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Definitions
- the present invention relates to a fuel remaining amount warning device for a vehicle, and more particularly, to a fuel remaining amount warning device for a vehicle that warns that the remaining fuel amount has become less than a predetermined value.
- a vehicle is provided with a fuel gauge that displays the remaining amount of fuel in the fuel tank, and a structure is known that warns with an indicator or the like when the remaining amount of fuel falls below a predetermined value.
- Patent Document 1 discloses a fuel remaining amount warning device in consideration of suppression of cost increase.
- An object of the present invention is to solve the above-mentioned problems of the prior art and to provide a fuel remaining amount warning device for a vehicle that can intuitively recognize that the remaining amount of fuel is less than a predetermined value.
- the present invention provides a vehicle that warns that the remaining amount of fuel is less than a predetermined value based on the output of the fuel gauge (6) that measures the remaining amount of fuel in the fuel tank (13).
- the fuel remaining amount warning device comprises combustion state changing means (2) for changing the combustion state of the engine (E), and when the fuel remaining amount becomes less than a predetermined value, the combustion state changing means (2)
- a warning confirmation means (5) for stopping the remaining amount warning control for a predetermined time based on the operation of the occupant is provided.
- warning checking means (5) has a third feature in that it also serves as an operation switch for operating another device provided in the vehicle.
- the operation switch is a starter switch for starting the engine (E), and has a fourth feature.
- the remaining amount warning control has a fifth feature in that it is periodically performed at predetermined intervals.
- a sixth feature is that the remaining amount warning control is set to change the predetermined interval in accordance with changes in the remaining amount of fuel, the amount of fuel consumed, the distance traveled, the elapsed time, etc. as the vehicle travels.
- the remaining amount warning control is set to change the magnitude of vibration in accordance with changes in the remaining amount of fuel, the amount of fuel consumed, the travel distance, the elapsed time, and the like as the vehicle travels.
- an eighth feature is that the remaining amount warning control is performed by changing a fuel injection amount by an injector (10) for supplying fuel to the engine (E).
- the change in the fuel injection amount is executed by injection thinning that restricts a predetermined number of consecutive injections of the injection timing generated in one cycle, and the predetermined number of consecutive times is determined by the cylinder of the engine (E).
- a ninth feature is that the number increases according to the number.
- the tenth feature is that the predetermined number of consecutive times is equal to or greater than a value calculated by a calculation formula of the number of cylinders (X) of the engine (E) / 2.
- an eleventh feature is that the remaining amount warning control is performed by changing a driving mode of the ignition device (11) of the engine (E).
- the twelfth feature is that the remaining amount warning control is performed by restricting the intake amount to the engine (E).
- the combustion state changing means (2) is also configured to perform vehicle speed limit control by changing the combustion state of the engine (E), and the vibration generated by the remaining amount warning control is the vehicle speed. There is a thirteenth feature that is different from the vibration caused by the limiting control.
- the remaining amount warning control has a fourteenth feature in that the remaining amount warning control is not performed when the rotational speed of the engine (E) is less than a predetermined value.
- the remaining amount warning control has a fifteenth feature in that it is not performed when the vehicle speed is less than a predetermined value.
- a memory (4) that maintains the execution history of the remaining amount warning control even after the engine (E) is stopped, and when the remaining amount of fuel does not increase when the engine (E) is restarted, There is a sixteenth feature in that the remaining amount warning control is restarted from the stop of the engine (E) based on the execution history.
- the combustion state changing means (2) for changing the combustion state of the engine (E) is provided, and when the remaining amount of fuel becomes less than a predetermined value, the combustion state changing means (2) Since the remaining amount warning control that generates vibration different from that during normal operation is performed by changing the combustion state of the engine (E), the engine and the vehicle body generate vibration that is different from that during normal operation due to the change in the combustion state of the engine. This makes it possible for the occupant to recognize that the remaining amount of fuel is decreasing. Accordingly, it is possible to effectively warn of a decrease in the remaining fuel amount even while the vehicle is traveling without adding a dedicated device for warning the decrease in the remaining fuel amount.
- the warning confirmation means (5) for stopping the remaining amount warning control for a predetermined time based on the operation of the occupant since the warning confirmation means (5) for stopping the remaining amount warning control for a predetermined time based on the operation of the occupant is provided, the remaining amount warning control can be temporarily stopped by the occupant's intention. In addition, the usability of the fuel remaining amount warning device can be improved.
- the warning confirmation means (5) is also used as an operation switch for operating other devices provided in the vehicle, it is not necessary to add a new part for the warning confirmation means. The number of parts can be reduced.
- the operation switch is a starter switch for starting the engine (E)
- the starter switch that is not used during traveling is effectively used to check the warning. The number of parts and cost can be reduced.
- the vibration caused by the remaining amount warning control is not a mechanical malfunction or the like, but a decrease in the remaining fuel amount. It is possible to make the occupant recognize that this is caused by intentional control caused by the vehicle.
- the remaining amount warning control is set to change the predetermined interval in accordance with changes in the remaining amount of fuel, fuel consumption, traveling distance, elapsed time, and the like as the vehicle travels. Therefore, for example, the effect of prompting the occupant to refuel is enhanced by setting the predetermined interval to be shorter according to the amount of fuel used after the remaining amount warning is started.
- the remaining amount warning control changes the magnitude of vibration in accordance with changes in the remaining amount of fuel, fuel consumption, travel distance, elapsed time, etc., as the vehicle travels.
- the vibration By setting the vibration to increase according to the amount of fuel used after the remaining amount warning is started, the effect of prompting the occupant to refuel is enhanced.
- the electronically controlled fuel injection drive Since the remaining amount warning control is performed by changing the mode (for example, injection amount reduction, injection thinning, and injection timing delay), it is possible to finely set the magnitude of vibration and the like.
- the change in the fuel injection amount is executed by injection thinning that restricts a predetermined number of consecutive injections of the injection timing generated in one cycle, and the predetermined number of consecutive times is Since it increases according to the number of cylinders of the engine (E), it becomes possible to perform effective remaining amount warning control according to the number of cylinders of the engine.
- the predetermined number of consecutive times is equal to or greater than the value calculated by the calculation formula of the number of cylinders (X) / 2 of the engine (E). Can produce a significant vibration generating effect.
- the remaining amount warning control is performed by changing the drive mode of the ignition device (11) of the engine (E), the drive mode of the electronically controlled ignition device is changed. Since the remaining amount warning control is performed by (for example, ignition timing, ignition cut, and delay control), it is possible to finely set the magnitude of vibration and the like.
- the remaining amount warning control is performed by restricting the intake amount to the engine (E)
- the remaining amount warning control is performed by changing the drive mode of the electronically controlled ignition device. For this reason, it is possible to finely set the magnitude of vibration and the like.
- the combustion state changing means (2) is configured to also perform vehicle speed limit control by changing the combustion state of the engine (E), and by the remaining amount warning control, Since the generated vibration is different from the vibration generated by the vehicle speed limit control, the difference between the remaining amount warning control and the vehicle speed limit control is clarified, for example, the misunderstanding that the remaining fuel amount is less than a predetermined value due to the vibration of the vehicle speed limit control. Can be prevented.
- the remaining amount warning control is not performed in a state where the engine (E) has a rotational speed less than a predetermined value. It can be set so that the remaining amount warning is not performed while the vehicle is traveling while recognizing a decrease in the amount and maintaining low rotation.
- the remaining amount warning control is not performed when the vehicle speed is less than a predetermined value, for example, the remaining amount warning control is performed while the vehicle is stopped or while the occupant is pushing the vehicle. It can be set not to issue a volume warning.
- the apparatus includes a memory (4) that maintains an execution history of the remaining amount warning control even after the engine (E) is stopped, and increases the remaining fuel amount when the engine (E) is restarted. If there is not, the remaining amount warning control is restarted from the time when the engine (E) is stopped based on the execution history. For example, vibration is generated according to the elapsed time since the remaining amount warning control was started. When the remaining amount warning control is performed using a change pattern that shortens the cycle, the remaining amount warning control can be resumed by continuously applying the vibration generation cycle that was shortened before the previous engine stop. . Thereby, a passenger
- 1 is a block diagram showing an overall configuration of a remaining fuel warning device for a vehicle according to an embodiment of the present invention. It is a list of the method of changing a combustion state. It is a flowchart which shows the procedure of residual amount warning control. It is a flowchart which shows the procedure of snooze control.
- 1 is a system configuration diagram of a main part of a four-cycle four-cylinder gasoline engine for a motorcycle. It is a figure which shows the fuel-injection cycle of multiple cylinders. It is a block diagram which shows the principal part function of ECU. It is a figure which shows the example which increases a fuel cut ratio in steps. It is explanatory drawing of the change pattern accommodated in a combustion state change means. It is a flowchart which shows the procedure of remaining amount warning control by a predetermined change pattern. It is a flowchart which shows the procedure of remaining amount warning control 2.
- FIG. 1 is a block diagram showing an overall configuration of a remaining fuel warning device for a vehicle according to an embodiment
- FIG. 1 is a block diagram showing the overall configuration of a vehicle fuel remaining amount warning device according to an embodiment of the present invention.
- the control unit 1 is an ECU that controls the combustion state of the engine E that is a power source of the vehicle. During the normal operation of the engine E, the control unit 1 mainly uses the information on the opening degree of the throttle device, the engine speed, and the vehicle speed operated by the occupant, the injector 10, the ignition device 11, and the intake air of the fuel injection device.
- the amount limiting means 12 is controlled.
- the control unit 1 changes the combustion state of the engine E so that the combustion state of the engine E differs from that during normal operation in order to warn the occupant when the remaining amount of fuel in the fuel tank 13 becomes less than a predetermined value.
- Means 2 are provided.
- the remaining amount warning control performed by the combustion state changing means 2 causes the engine E and the vehicle body to generate vibrations different from those during normal operation by making the combustion state of the engine E different from that during normal operation. The occupant can intuitively recognize through a tactile sensation that the remaining fuel amount is less than a predetermined value due to vibrations different from those during normal operation.
- the control unit 1 includes a fuel meter 6 for the fuel tank 13, a distance meter 7 for detecting the travel distance of the vehicle, a tachometer 8 for detecting the number of revolutions of the engine E, and an elapsed time, in order to execute fuel remaining amount control.
- the information of the timer 9 for detecting is input.
- the combustion state changing means 2 stores a plurality of change patterns 3 that store the mode of occurrence of vibration in the remaining amount warning control.
- the control unit 1 stores a memory 4 that can store an execution history of the change patterns 3. Is provided. Further, the controller 1 is connected with a warning confirmation button 5 as a warning confirmation means for temporarily stopping the generation of vibration due to the fuel remaining amount control in accordance with the occupant's operation.
- FIG. 2 is a list of methods for specifically changing the combustion state.
- the remaining amount warning control can be executed using any one of the injector 10, the ignition device 11, and the intake air amount restriction unit 12.
- the injector 10 is used, the engine E is controlled by “injection amount restriction” for shortening one injection time, “injection thinning” for prohibiting injection at a predetermined injection timing, or “injection delay” for delaying injection timing. Vibrations different from those during normal operation can be generated.
- ignition cut for prohibiting ignition of the spark plug at a predetermined ignition timing
- retarding control for delaying the ignition timing
- an intake resistance is increased by driving an “intake pipe throttle” for driving the throttle valve provided in the intake pipe in the closing direction, a valve provided in the air cleaner, or the like. “Air cleaner passage change” to be performed, or “Bypass air cutoff” to shut off the bypass air passage provided in the intake pipe.
- the method of changing the combustion state is not limited to the above-described method, and it is also possible to execute the remaining amount warning control by arbitrarily combining the driving of the injector 10, the ignition device 11, and the intake air amount restriction means 12.
- FIG. 3 is a flowchart showing the remaining amount warning control procedure.
- step S10 when an IG switch (ignition switch) for turning on / off the vehicle is turned on, the remaining amount of fuel is detected based on the output of the fuel gauge 6 in step S11.
- IG switch ignition switch
- step S12 it is determined whether or not the engine E is in operation. If an affirmative determination is made, the process proceeds to step S13.
- step S13 it is determined whether or not the remaining amount of fuel is less than a predetermined value (for example, less than 3 liters). If the determination in step S13 is affirmative, in step S14, remaining amount warning control is executed to change the combustion state of the engine E and cause vibration different from that during normal operation, and the series of controls is terminated. If a negative determination is made in steps S12 and S13, the process returns to step S11. That is, the remaining amount warning control shown in this flowchart is executed when the engine E is starting and when the remaining amount of fuel becomes less than a predetermined value, whether the vehicle is stopped or traveling. It becomes.
- a predetermined value for example, less than 3 liters
- FIG. 4 is a flowchart showing a snooze control procedure.
- the remaining amount warning control can be arbitrarily suspended by the occupant to improve usability, and a re-warning is automatically performed when a predetermined time has elapsed since the suspension. Is set.
- step S20 it is determined whether the remaining amount warning control is being executed. If an affirmative determination is made, the process proceeds to step S21. In step S21, it is determined whether or not the warning confirmation button 5 has been operated. If an affirmative determination is made, the process proceeds to step S22 to temporarily stop the remaining amount warning control. With this temporary stop, time measurement by the timer 9 is started.
- warning confirmation button 5 is also used as a starter switch used at the start of the engine E, a warning confirmation means is configured by effectively using a switch that is not used during traveling, thereby reducing the number of parts and the cost. It becomes possible to plan.
- the warning confirmation button may be a switch that also serves as a switch of another device such as a blinker cancel switch.
- step S23 it is determined whether or not a predetermined time has elapsed since the remaining amount warning control is temporarily stopped. If an affirmative determination is made, the process proceeds to step S24. In step S24, it is determined whether or not the remaining amount of fuel is less than a predetermined value, and if an affirmative determination is made, the process proceeds to step S26 to restart the remaining amount warning and prompt the occupant to refuel.
- step S24 determines whether the occupant performs refueling after arbitrarily suspending the remaining amount warning control and the remaining fuel amount is equal to or greater than the predetermined value. If a negative determination is made in step S24, that is, if the occupant performs refueling after arbitrarily suspending the remaining amount warning control and the remaining fuel amount is equal to or greater than the predetermined value, the process proceeds to step S25 and the remaining amount is determined. The amount warning is finished as it is, and a series of control is finished.
- FIG. 5 is a system configuration diagram of a main part of a four-cycle four-cylinder gasoline engine for a motorcycle. Below, the procedure which performs residual amount warning control (combustion state change control) using the injector 10 among the above-mentioned injector 10, the ignition device 11, and the intake air amount restriction
- the engine E includes four cylinders 22, and an intake manifold (intake pipe) 15 and an exhaust manifold 26 are connected to each cylinder 22.
- Each branch pipe 15a, 15b, 15c, 15d of the intake manifold 15 is provided with a fuel injection valve (injector) 10 respectively.
- a throttle body 18 having a throttle valve 17 is provided in the collecting pipe 16 of the intake manifold 15, and a throttle sensor 19 for detecting a throttle opening ⁇ TH is connected to the throttle valve 17.
- a negative pressure sensor 20 and an intake air temperature sensor 21 are attached to the pipe wall of the collecting pipe 16.
- an oxygen concentration sensor 28 is provided in the collecting pipe 27 of the exhaust manifold 26, and a three-way catalyst 29 is provided downstream thereof.
- the three-way catalyst 29 purifies HC, CO, NOx, etc. in the exhaust gas.
- the engine E is provided with a crank angle sensor 24, a cam angle sensor 23, and an engine temperature sensor 25.
- the crank angle sensor 24 is provided for a crankshaft (not shown) and outputs a crank pulse at every predetermined crank angle.
- the cam angle sensor 23 is provided for a camshaft that opens and closes an intake valve or an exhaust valve (not shown), and is set to output a cam pulse at the compression top dead center of a specific cylinder among the four cylinders. The compression top dead center of the other cylinders is determined based on the relative crank angle between the cylinders.
- the engine temperature sensor 25 is provided on the water jacket wall of the engine E, and outputs a detection signal for the coolant temperature.
- the output signals of the sensors are input to the ECU 1 equipped with a microcomputer and used for controlling the fuel injection amount and the fuel injection timing, as well as for controlling the ignition timing.
- the ECU 1 performs combustion state change control (remaining amount warning control) and vehicle speed limit control according to the present invention.
- the remaining amount warning control when the remaining amount of fuel becomes less than a predetermined value, fuel injection to the four cylinders is stopped at a predetermined rate, thereby causing the engine E to vibrate and causing the occupant to It warns through touch.
- the vehicle speed limit control when the vehicle speed exceeds a preset speed limit value, the fuel injection to the four cylinders is stopped at a predetermined rate, thereby reducing the engine output and reducing the vehicle speed to a predetermined maximum speed or less. It is a limitation.
- the fuel injection mode is made different between the remaining amount warning control and the vehicle speed limit control so that the generated vibrations are different.
- the difference from the vehicle speed limit control may be made clearer by enabling acceleration according to the throttle operation while giving a warning by vibration.
- FIG. 6 is a diagram showing a fuel injection cycle of a plurality of cylinders.
- # 1 to # 4 are cylinder identification codes.
- fuel injection is performed for all cylinders in the order of # 1, # 2, # 4, and # 3, and the repetition of this order is maintained.
- the fuel injection performed in this cycle is stopped (fuel cut) at a predetermined rate.
- FIG. 7 is a block diagram showing the main functions of the ECU 1, and is common to the cylinders # 1 to # 4.
- the rotation speed calculation unit 30 calculates the engine rotation speed Ne based on the cycle of the crank pulse output from the crank angle sensor 24.
- the fuel injection amount calculation unit 32 calculates a fuel injection amount represented by the fuel injection time Ti based on the engine speed Ne and the throttle opening ⁇ TH detected by the throttle sensor 19.
- the fuel injection amount can be calculated by a known method such as using a map showing the relationship between the fuel injection time Ti, the engine speed Ne, and the throttle opening degree ⁇ TH, or using a predetermined calculation formula.
- the fuel injection time Ti can be corrected by the engine temperature detected by the engine temperature sensor 25, the intake air temperature detected by the intake air temperature sensor 21, or the like.
- the fuel injection timing determination unit 33 determines the fuel injection start timing based on the engine speed Ne and the throttle opening ⁇ TH.
- the fuel injection timing can also be corrected by parameters other than the engine speed Ne and the throttle opening ⁇ TH, such as the engine temperature.
- a crank pulse and a cam pulse are input from the crank angle sensor 24 and the cam angle sensor 23 to the fuel injection timing determination unit 33, and the crank angle of each cylinder calculated based on these input signals matches the fuel injection timing.
- a fuel injection command is output.
- the driver 37 causes a current to flow through the injector 10 for the fuel injection time Ti to inject fuel.
- the fuel cut control unit 35 for stopping the fuel injection command output from the fuel injection timing determination unit 33, the delay means 34 for delaying the fuel injection timing, and the fuel cut And a cylinder determination unit 31 for detecting a cylinder targeted for fuel injection timing delay.
- the fuel remaining amount determination unit 36 inputs a vehicle speed detection signal to the fuel cut control unit 35 and the delay means 34 when the fuel remaining amount becomes less than a predetermined value based on the output of the fuel gauge 6.
- the cylinder discrimination unit 31 performs cylinder discrimination based on the cam pulse and the crank pulse.
- the fuel cut control unit 35 determines a predetermined fuel cut target cylinder based on the cylinder identification signal from the cylinder determination unit 31 and outputs a fuel cut command.
- the delay unit 34 determines a cylinder whose fuel injection timing is scheduled to be delayed based on the cylinder identification signal, and outputs a delay command.
- the fuel injection command is paused and is not input to the driver 37 of the injector 10.
- the delay command is output, the fuel injection command is delayed and input to the driver 37.
- FIG. 8 is a diagram showing an example of increasing the fuel cut ratio step by step.
- a white circle ( ⁇ ) indicates normal injection
- a black circle ( ⁇ ) indicates an injection delay
- a cross mark ( ⁇ ) indicates an injection cut.
- (a) is when the fuel cut is performed twice in 10 times of fuel injection operation
- (b) is when the fuel cut is performed 3 times out of the fuel injection operation in 10 times
- (c) is 10 times This is the case where the fuel cut is performed four times during the fuel injection operation.
- any of the fuel cuts ( ⁇ ) of (a) to (c) at least one immediately before the fuel injection of the cylinder is performed on the wall of the intake pipe as an injection delay ( ⁇ ) that delays the injection timing. Control to reduce the amount of sticking fuel. As a result, it is possible to prevent a small amount of fuel remaining attached to the intake pipe at the previous fuel injection from flowing into the combustion chamber and generating unburned gas in the fuel cut cycle.
- the combustion state changing means 2 can arbitrarily change the magnitude of vibration, for example, the remaining amount of fuel, the amount of fuel consumed, the travel distance, the elapsed time, etc. accompanying the travel of the vehicle It is possible to increase the effect of prompting oiling by setting so that the vibration gradually increases in accordance with the change of.
- the remaining amount warning control by fuel cut can be executed regardless of the number of cylinders of the engine. For example, when the remaining amount warning control is executed by injection thinning that restricts a predetermined number of consecutive injections of the injection timing generated in one cycle, the predetermined number of continuous times is increased according to the number of cylinders of the engine. It is possible to perform remaining amount warning control according to the number of cylinders.
- an effective vibration generating effect can be obtained by executing the above-described injection decimation continuously for the number of times equal to or greater than the value calculated by the calculation formula of the number of cylinders X / 2. For example, it is preferable to perform injection culling continuously for 2 or more times for a 3 or 4 cylinder engine, 3 or more times for a 5 or 6 cylinder engine and 4 or more times for a 7 or 8 cylinder engine.
- FIG. 9 is a schematic explanatory diagram of the change pattern 3 stored in the combustion state changing means 2.
- the remaining amount warning control executed by the combustion state changing means 2 can be executed not only by continuously generating a constant vibration from the start of the control but also by various change patterns that change the size and cycle.
- This figure shows an outline of four change patterns (a) to (d) from the upper side.
- (A) increases the vibration every predetermined time from the start of control at time t1. According to such a change pattern, the effect of prompting the occupant to refuel is increased by gradually increasing the vibration with time.
- (B) repeats on / off of vibration at a constant cycle from the start of control at time t1. According to such a change pattern, it is possible to allow the occupant to recognize that the vibration generated in the engine and the vehicle body is not caused by a mechanical malfunction or the like but is caused by intentional control resulting from a decrease in the remaining amount of fuel. it can.
- (C) is the one in which the vibration off time is gradually shortened (c1> c2> c3) while repeating the vibration on and the vibration off, and (d) is the period between the vibration on and the vibration off being repeated.
- the vibration ON time is gradually increased (d1 ⁇ d2 ⁇ d3 ⁇ d4). According to such a change pattern, it is possible to make the occupant recognize that the necessity of refueling is increasing with the passage of time from the start of control.
- the above-mentioned change patterns can be applied in various ways, such as applying different change patterns when starting control and when resuming with snooze control, in addition to applying each change pattern independently.
- the change patterns (a), (c), and (d) shown in FIG. 9 change the magnitude of vibration, the period of vibration generation, and the like according to the passage of time.
- the generation cycle or the like can be changed in accordance with the remaining amount of fuel, the amount of fuel consumed, the distance traveled, etc. as the vehicle travels, in addition to the passage of time.
- the change pattern as described above may be formed by applying any one of the injector 10, the ignition device 11, and the intake air amount restriction means 12, and among these, two or more means may be combined to obtain an appropriate vibration. May be generated.
- FIG. 10 is a flowchart showing a remaining amount warning control procedure according to a predetermined change pattern.
- the warning check button 5 is operated during the execution of the remaining amount warning control using the change pattern (c) shown in FIG. 9 and the remaining amount warning control is resumed as a predetermined time elapses. This corresponds to the procedure for restarting from the control state at the time when the warning confirmation button 5 is operated.
- step S30 it is determined whether or not the remaining amount warning control is being executed with a change pattern in which the combustion state change interval is gradually shortened. If an affirmative determination is made in step S30, it is determined in step S31 whether or not the warning confirmation button 5 has been operated. If a positive determination is made in step S31, the remaining amount warning is temporarily stopped in step S32. At this time, the control unit 1 stores in the memory 4 an elapsed time from the start of the remaining amount warning control and an execution history indicating how much the combustion state change interval has become shorter than at the start of the control.
- step S33 it is determined whether or not a predetermined time has elapsed from the temporary stop, and if an affirmative determination is made, the process proceeds to step S34.
- step S34 it is determined whether or not the remaining amount of fuel is less than a predetermined value. If an affirmative determination is made in step S34, the remaining amount warning control is resumed with a predetermined pattern from the time of the previous pause based on the execution history stored in the memory 4.
- step S33 is performed based on whether the vehicle has traveled a predetermined distance from the time when the vehicle is temporarily stopped, whether a predetermined amount of fuel has been injected from the time when the vehicle is temporarily stopped. You may comprise so that it may determine with the crankshaft of an engine having rotated predetermined number from the time of a stop.
- step S30 and S31 When a negative determination is made in steps S30 and S31, a series of control is terminated as it is. If a negative determination is made in step S33, the process returns to the determination in step S33. If a negative determination is made in step S34, the remaining amount warning control is ended in step S35, and the series of controls is ended.
- the memory 4 is composed of a non-volatile memory, the execution history can be saved even if the engine E is stopped and the vehicle is turned off. Thereby, at the time of restarting the engine, it is possible to resume the remaining amount warning control that was performed when the engine was stopped last time.
- the remaining amount warning control is arbitrarily paused by operating the warning confirmation button during the remaining amount warning control is shown. It can also be set to automatically perform as a trigger that a certain period of time (for example, 1 minute) sufficient for recognition is passed.
- FIG. 11 is a flowchart showing the procedure of the remaining amount warning control 2. This flowchart is characterized in that, in addition to the fuel remaining amount being less than a predetermined value, an additional condition is imposed that the engine speed is equal to or greater than a predetermined value.
- step S40 when the IG switch for turning on / off the vehicle is turned on, the remaining fuel amount is detected based on the output of the fuel gauge 6 in step S41.
- step S42 it is determined whether or not the engine E is in operation, and if an affirmative determination is made, the process proceeds to step S43.
- step S43 it is determined whether the fuel remaining amount is less than a predetermined value. If the determination in step S43 is affirmative, the process proceeds to step S44, and it is determined whether or not the engine speed is a predetermined value (for example, 2000 rpm) or more.
- step S44 If an affirmative determination is made in step S44, that is, if it is determined that the remaining fuel amount is less than the predetermined value and the engine speed is greater than or equal to the predetermined value, the remaining amount warning control is executed in step S45.
- the remaining amount warning control is not performed while avoiding the engine stall during idling operation or while the occupant is traveling while maintaining the low speed while recognizing the low state of the remaining amount of fuel. Can be.
- the vehicle speed detected by the vehicle speed sensor is a predetermined value (for example, 10 km / h) or more. According to this setting, it is possible to prevent the remaining amount warning control from being performed while the vehicle is stopped or the occupant is pushing the vehicle.
- the combustion state changing means 2 provided in the ECU 1 causes the engine E to Since the remaining amount warning control for changing the combustion state and causing vibration different from that during normal operation is performed, it is possible to intuitively recognize the occupant through the sense of touch that the remaining amount of fuel is decreasing. Accordingly, it is possible to effectively warn of a decrease in the remaining fuel amount even while the vehicle is traveling without adding a dedicated device for warning the decrease in the remaining fuel amount.
- the structure and form of the engine, the structure and number of the injectors, the ignition device, and the intake amount restriction means, the mode of the change pattern of the remaining amount warning control, the combination of the injector, the ignition device, and the intake amount restriction means constituting the remaining amount warning control Etc. are not limited to the above embodiment, and various modifications are possible.
- the fuel remaining amount warning device for a vehicle according to the present invention is not limited to a motorcycle, and can be applied to various vehicles such as a saddle-ride type three / four-wheeled vehicle.
- SYMBOLS 1 Control part (ECU), 2 ... Combustion state change means, 4 ... Memory, 3 ... Change pattern, 5 ... Warning confirmation button (warning confirmation means), 6 ... Fuel meter, 7 ... Distance meter, 8 ... Tachometer, DESCRIPTION OF SYMBOLS 9 ... Timer, 10 ... Injector, 11 ... Ignition device, 12 ... Intake amount control means, 13 ... Fuel tank, E ... Engine
Abstract
Description
Claims (16)
- 燃料タンク(13)の燃料残量を計測する燃料計(6)の出力に基づいて、燃料残量が所定値未満になったことを警告する車両の燃料残量警告装置において、
エンジン(E)の燃焼状態を変更する燃焼状態変更手段(2)を具備し、
前記燃料残量が所定値未満になると、前記燃焼状態変更手段(2)によって前記エンジン(E)の燃焼状態を変化させることで通常運転時と異なる振動を生じさせる残量警告制御を行うことを特徴とする車両の燃料残量警告装置。 - 乗員の操作に基づいて前記残量警告制御を所定時間の間停止する警告確認手段(5)を具備することを特徴とする請求項1に記載の車両の燃料残量警告装置。
- 前記警告確認手段(5)は、車両に設けられた他の機器を操作する操作スイッチを兼用させることを特徴とする請求項2に記載の車両の燃料残量警告装置。
- 前記操作スイッチは、前記エンジン(E)を始動させるスタータスイッチであることを特徴とする請求項3に記載の車両の燃料残量警告装置。
- 前記残量警告制御は、所定間隔毎に周期的に行われることを特徴とする請求項1ないし4のいずれかに記載の車両の燃料残量警告装置。
- 前記残量警告制御が、車両の走行に伴う燃料残量、燃料消費量、走行距離および経過時間等の変化に応じて前記所定間隔を変化させるように設定されていることを特徴とする請求項5に記載の車両の燃料残量警告装置。
- 前記残量警告制御が、車両の走行に伴う燃料残量、燃料消費量、走行距離および経過時間等の変化に応じて振動の大きさを変化させるように設定されていることを特徴とする請求項5に記載の車両の燃料残量警告装置。
- 前記残量警告制御が、前記エンジン(E)に燃料を供給するインジェクタ(10)による燃料噴射量を変化させることで行われることを特徴とする請求項1ないし7のいずれかに記載の車両の燃料残量警告装置。
- 前記燃料噴射量の変化が、1サイクル中に発生する噴射タイミングのうちの連続する所定回数の噴射を制限する噴射間引きにより実行され、
前記連続する所定回数を、前記エンジン(E)の気筒数に応じて増やすことを特徴とする請求項8に記載の車両の燃料残量警告装置。 - 前記連続する所定回数が、前記エンジン(E)の気筒数(X)÷2の算出式で算出される値以上の回数とされることを特徴とする請求項9に記載の車両の燃料残量警告装置。
- 前記残量警告制御が、前記エンジン(E)の点火装置(11)の駆動態様を変化させることで行われることを特徴とする請求項1ないし7のいずれかに記載の車両の燃料残量警告装置。
- 前記残量警告制御が、前記エンジン(E)への吸気量制限により行われることを特徴とする請求項1ないし7のいずれかに記載の車両の燃料残量警告装置。
- 前記燃焼状態変更手段(2)が、前記エンジン(E)の燃焼状態を変化させることで車速制限制御をも行うように構成されており、
前記残量警告制御によって生じる振動が、前記車速制限制御によって生じる振動と異なることを特徴とする請求項1ないし12のいずれかに記載の車両の燃料残量警告装置。 - 前記残量警告制御は、前記エンジン(E)の回転数が所定値未満の状態では行われないことを特徴とする請求項1ないし13のいずれかに記載の車両の燃料残量警告装置。
- 前記残量警告制御は、車両の速度が所定値未満の状態では行われないことを特徴とする請求項1ないし13のいずれかに記載の車両の燃料残量警告装置。
- 前記残量警告制御の実行履歴を前記エンジン(E)の停止後も維持するメモリ(4)を備え、
前記エンジン(E)の再始動時に前記燃料残量の増加がない場合は、前記実行履歴に基づいて、前記エンジン(E)の停止時から前記残量警告制御を再開することを特徴とする請求項1ないし15のいずれかに記載の車両の燃料残量警告装置。
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JP2016550103A JP6429890B2 (ja) | 2014-09-26 | 2015-09-11 | 自動二輪車の燃料残量警告装置 |
EP15845370.4A EP3205866A4 (en) | 2014-09-26 | 2015-09-11 | Remaining fuel amount warning device for vehicle |
BR112017006040A BR112017006040A2 (pt) | 2014-09-26 | 2015-09-11 | dispositivo de aviso de quantidade de combustível restante para motocicleta |
CN201580050256.6A CN106795830A (zh) | 2014-09-26 | 2015-09-11 | 车辆的燃料余量警告装置 |
US15/514,225 US10151264B2 (en) | 2014-09-26 | 2015-09-11 | Remaining fuel amount warning device for motorcycle |
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CN116877285A (zh) * | 2023-09-06 | 2023-10-13 | 潍柴动力股份有限公司 | 一种发动机输出扭矩控制方法及装置 |
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US20220139123A1 (en) * | 2019-03-14 | 2022-05-05 | Honda Motor Co., Ltd. | Vehicle diagnosis method, vehicle diagnosis system, and external diagnosis device |
JP2023145137A (ja) * | 2022-03-28 | 2023-10-11 | 本田技研工業株式会社 | 車両及び制御装置 |
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US10151264B2 (en) | 2018-12-11 |
JPWO2016047463A1 (ja) | 2017-07-06 |
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