WO2018142574A1

WO2018142574A1 - Driving state display apparatus for saddled vehicles

Info

Publication number: WO2018142574A1
Application number: PCT/JP2017/003968
Authority: WO
Inventors: 世界山崎; 高志山本; 恵成風間; 清隆田口
Original assignee: 本田技研工業株式会社
Priority date: 2017-02-03
Filing date: 2017-02-03
Publication date: 2018-08-09
Also published as: JPWO2018142574A1; JP6701389B2; CN110267837A; BR112019014174A2; PH12019501489A1; CN110267837B

Abstract

Provided is a driving state display apparatus for saddled vehicles, which has a simple configuration and can assist in smart riding for eco-driving. A throttle position sensor (61) detects the position of a throttle TH. An engine rotational speed sensor (62) detects the engine rotational speed NE. A water temperature sensor (63) detects the engine cooling water temperature TW. A RAM (64) provides a work area to a CPU (60). A ROM (65) stores an indicator lighting control program (65a) for assisting in eco-driving. An EEP-ROM (66) stores an eco-driving determination map (66a). The CPU executes the indicator lighting control program, and refers to the eco-driving determination map on the basis of the detection results of the TH sensor and the NE sensor. Then the CPU determines whether or not the eco-driving state is established on the basis of the detection result of the TW sensor, and, if the eco-driving state is established, an indicator (40) is turned on, whereas, if the eco-driving state is not established, the indicator (40) is turned off.

Description

Driving state display device for saddle riding type vehicles

The present invention relates to a driving state display device for a saddle riding type vehicle, and more particularly to a driving state display device for a saddle riding type vehicle that can support eco-driving with a simple configuration.

In recent years, user awareness of fuel consumption has increased, and there is a tendency to prefer driving with lower fuel consumption. Patent Document 1 determines whether or not the driving operation of the vehicle by the driver is an eco driving operation, displays the determination result and fuel consumption information, and displays the fuel consumption information based on the determination result to be displayed. There has been disclosed a technique for reducing the display mismatch that may occur between the determination result of whether or not the operation is an eco-driving operation and the display of the fuel consumption information by correcting.

JP 2010-42745

The technology of Patent Document 1 is not preferable as an eco-driving display system mounted on a saddle-ride type vehicle because the apparatus becomes complicated because it has a function of correcting fuel consumption information.

An object of the present invention is to solve the above technical problem and to provide a driving state display device for a saddle-ride type vehicle that can support eco-driving by smart riding with a simple configuration.

In order to achieve the above object, the present invention is characterized in that it has the following configuration in a driving state display device for a saddle-ride type vehicle that judges an eco-driving state and lights an indicator.

(1) 手段 Means for detecting the engine speed, means for detecting the throttle opening, judgment condition storage means for determining the indicator lighting conditions using the engine speed and the throttle opening as variables, and the rate of change of the engine speed And a lighting control means for lighting the indicator when the change rate of the throttle opening is equal to or less than a specific determination threshold value and the engine speed and the throttle opening satisfy the lighting conditions.

(2) The lighting control means turns off the indicator when the engine speed or throttle opening does not satisfy the lighting conditions.

(3) Store the throttle opening when the engine speed and throttle opening satisfy the lighting conditions, and then display the indicator when the throttle opening changes by more than a predetermined opening from the stored throttle opening. The light was turned off.

(4) Even if the lighting condition is satisfied while the lamp is turned off, the 経過 lighting control means does not turn on the indicator until the elapsed time after the indicator has been turned off for a predetermined time. The indicator is not turned off until a predetermined time has elapsed after lighting.

(5) As the lighting condition storage means, an eco-driving determination map in which the lighting condition of the indicator is determined with the engine speed and the throttle opening as variables is used.

(6) A indicator was installed near the neutral lamp on the meter panel.

(7) The range of the engine speed that satisfies the lighting condition is set to be equal to or higher than the engine speed corresponding to the legal maximum speed at the highest speed gear and higher than the connection speed of the centrifugal clutch.

(8) The upper limit value of the throttle opening that satisfies the lighting condition is set as the upper limit value for the throttle opening in the torque linear region where the fuel efficiency becomes maximum.

(9) The lower limit of the throttle opening under the lighting condition is the fully closed opening.

According to the present invention, the following effects are achieved.

(1) 手段 Means for detecting the engine speed, means for detecting the throttle opening, judgment condition storage means for determining the indicator lighting conditions using the engine speed and the throttle opening as variables, and the rate of change of the engine speed And a lighting control means for turning on the indicator when the rate of change of the throttle opening is equal to or less than a specific determination threshold value, and the engine speed and the throttle opening satisfy the lighting conditions. It becomes possible to support eco-driving smartly with a simple structure.

(2) The lighting control means turns off the indicator when the engine speed or throttle opening does not satisfy the lighting conditions, so that eco-driving can be supported in the latest state without detecting the fuel injection amount. Become.

(3) Store the throttle opening when the engine speed and throttle opening satisfy the lighting conditions, and then display the indicator when the throttle opening changes by more than a predetermined opening from the stored throttle opening. Since the light is turned off, even if the throttle opening is within the range of the eco-driving state, it is possible to make the rider recognize if it is in a driving state in which the change in the opening is large and there is a concern about deterioration of fuel consumption. .

(4) Even if the lighting condition is satisfied while the lamp is turned off, the lighting control means does not turn on the indicator until the predetermined time has elapsed after the indicator is turned off. Since the indicator is not turned off until the predetermined elapsed time has elapsed, the indicator can be prevented from blinking in a short cycle even when the operation state is in the vicinity of the boundary of the eco operation region.

(5) As the lighting condition storage means, a map that defines the lighting condition of the indicator with the engine speed and throttle opening as variables is used, so that it is possible to quickly determine whether or not the driving state is within the eco driving range. Become.

(6) Since the indicator is provided near the neutral lamp on the meter panel, the visibility and attention of the indicator will be improved.

(7) The engine speed range that satisfies the lighting condition is set to be higher than the engine speed corresponding to the legal maximum speed at the highest speed gear and higher than the stopping speed and legal speed because the range of engine speed is higher than the centrifugal clutch connection speed. The indicator does not light up when driving, and the reliability and compliance with the indicator can be improved.

(8) Since the upper limit value of the throttle opening that satisfies the lighting condition is the upper limit value related to the throttle opening in the torque linear region where the fuel efficiency is maximum, the indicator can be lit during low fuel consumption driving.

(9) Since the lower limit of the throttle opening in the lighting condition is a fully closed opening, the indicator can be lit if the condition is satisfied even during engine braking when traveling downhill.

1 is a right side view of a saddle riding type vehicle according to an embodiment of the present invention. It is a front view of a meter device concerning one embodiment of the present invention. It is the functional block diagram which showed the structure of the indicator control part. It is the figure which showed an example of the eco driving | operation determination map typically. It is the figure which showed an example of the torque linear area | region. It is a flowchart of an indicator lighting control program. FIG. 6 is a diagram showing the relationship between the throttle opening TH and the engine speed NE during cruise traveling for each gear position. It is the figure which showed the relationship between the vehicle speed at the time of cruise driving | running | working, and fuel consumption for every gear position. It is the figure which showed the method of controlling lighting / extinction of an eco indicator according to the variation | change_quantity of throttle opening.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a right side view of a saddle riding type vehicle according to an embodiment of the present invention. Here, a motorcycle will be described as an example.

The motorcycle 1 is a straddle-type vehicle in which a fuel tank 16 is disposed under a seat and a straddle portion A is provided between the steering handle 9 and the seat 15. The vehicle body frame 11 includes a main pipe 12 extending rearward and downward from the head pipe 5, a pair of left and right hangers 25 extending downward from the main pipe 12 at the rear portion of the engine 30, and a pair of left and right extending to the rear upper side connected to the main pipe 12. Of the rear pipe 24. A pair of left and right front forks 2 that rotatably support the front wheel WF is fixed to a lower end portion of a steering stem 33 that is rotatably supported by the head pipe 5.

The engine 30 includes a starting centrifugal clutch (not shown), a transmission (not shown), and a gear change mechanism (not shown) that changes the speed of the transmission, and is mounted by a mount portion provided on the main pipe 12 and the hanger 25. It is suspended integrally with the lower part of the body frame 11. Further, a change pedal 37 is provided on the left side of the engine 30 in the vehicle width direction for operating the gear change mechanism to switch the gear position from the first speed to the fourth speed. A front end portion of a swing arm 26 that rotatably supports the rear wheel WF is pivotally supported by a pivot 27 provided on the hanger 25.

The rear end of the swing arm 26 is suspended from the rear frame 24 by the rear cushion 20. A rear wheel brake pedal 31 and a pair of left and right footrest steps 29 are disposed on the right side of the engine 30 in the vehicle width direction, and combustion gas of the engine 30 is discharged from the rear end of the muffler 22. A center stand 28 is pivotally supported at the lower portion of the hanger 25 so as to be swingable.

The steering handle 9 fixed to the upper end of the steering stem 33 is provided with a throttle operation grip 36 for changing the rotation speed of the engine 30 so as to be rotatable on the shaft. Is provided with a meter device 35 having an operation state display function according to an embodiment of the present invention. The front and rear of the steering handle 9 are covered with a front meter cover 8 and a rear meter cover 10 that support the headlight 7. The front and rear of the head pipe 5 are covered with a front cowl 4 that supports a combination lamp 6 that integrally forms a winker device and a position lamp, and a floor panel 13 that faces the occupant's legs.

A pair of left and right rear cowls 17 are disposed behind the floor panel 13 so as to cover the lower part of the seat 15. A storage box 14 and a fuel tank 16 are disposed below the openable seat 15. A tail lamp device 18 is fixed to the rear end portion of the rear cowl 17, and a pair of left and right turn signal devices 19 and a rear fender 21 are attached below the tail lamp device 18.

The foldable rear step 23 used by the passenger in the rear seat is provided at the end of the stay extending from the rear frame 24, and most of the stay and the hanger 25 are covered with an integral cover 32. . The cover 32 also protects the pivot 27 of the swing arm 26 from stone splashes from the outside.

In the motorcycle 1, the front wheel brake BF is activated by operating the brake lever 34 attached to the front side of the throttle operation grip 36 provided on the steering handle 9, and the rear wheel brake BR is operated by operating the brake pedal 31.

FIG. 2 is a front view of the meter device 35. The display device 50 includes a speedometer 44, a fuel meter 45, a clock 46, and an odometer 47, and various lamps included in a general motorcycle meter device. As indicators, left and right

direction indicator lamps

41L and 41R, a headlamp indicator 42, and a neutral lamp 43 are provided. In addition to these various indicators, the meter device 35 according to the present embodiment has an indicator 40 (hereinafter referred to as an indicator) that lights up after judging the eco-drive state, in the vicinity of the neutral lamp 43 above the display panel 50. Prepare for.

FIG. 3 is a functional block diagram showing a configuration of an indicator control unit that controls turning on / off of the eco indicator 40 composed of LEDs, and here, configurations unnecessary for the description of the present invention are omitted. .

The throttle opening (TH) sensor 61 detects the throttle opening TH. The engine speed (NE) sensor 62 detects the engine speed NE. The water temperature (TW) sensor 63 detects the engine coolant temperature TW.

The RAM 64 provides a work area to the CPU 60 and includes a TH storage area 64a described later. The ROM 65 stores an indicator lighting control program 65a described later and various data. The EEP-ROM 66 is provided with a determination condition storage unit that stores an eco operation determination map 66a described later in a nonvolatile manner.

The CPU 60 executes the indicator lighting control program 65a and refers to the eco operation determination map 66a based on the detection results of the TH sensor 61 and the NE sensor 62. Then, based on the reference result of the eco operation determination map 66a and the detection result of the TW sensor 63, it is determined whether or not it is in the eco operation state, and the eco indicator 40 is lit if it is in the eco operation state, and in the eco operation state. If not, it goes off.

FIG. 4 is a diagram schematically showing an example of the eco operation determination map 66a stored in the EEP-ROM 66, with the engine speed NE (horizontal axis) and the throttle opening TH (vertical axis) as parameters. An eco operation region in which the eco indicator 40 is lit is defined. FIG. 5 is a diagram showing the torque linear region used for defining the upper limit value related to the throttle opening TH in the eco operation region using the engine speed NE and the throttle opening TH as parameters.

Here, the torque linear region is a region where the torque stably changes according to the throttle opening TH, that is, a region where the maximum fuel efficiency is achieved. FIG. 8 is a diagram showing the relationship between the vehicle speed and fuel consumption during cruise traveling for each gear position. In the figure, the region surrounded by a broken line is an eco operation region corresponding to the torque linear region.

In the present embodiment, as shown in FIG. 4, the eco operation region is within the O ₂ FB region (the operation region in which the fuel injection amount is feedback controlled to the stoichiometric air-fuel ratio (stoichiometry) based on the oxygen concentration in the exhaust gas). Further, it is defined as a range in which the upper and lower limits are restricted by the engine speed NE and the throttle opening TH.

The lower limit value for the engine speed NE in the eco operation region is set to, for example, approximately 2000 rpm as the connected speed of the centrifugal clutch. The upper limit value is set to, for example, about 5600 rpm as the engine speed at which the top gear reaches the legal speed. The lower limit value for the throttle opening TH in the eco driving range is set to approximately 0 °.

Thus, in this embodiment, since the eco indicator 40 is not turned on when the clutch is not connected or when traveling at a high speed exceeding the legal speed, the reliability and compliance with the eco indicator 40 can be improved.

The upper limit value regarding the throttle opening TH is set based on the torque linear region (FIG. 5) in which the fuel efficiency becomes maximum. In this embodiment, when the engine speed is less than 3500 rpm, the engine speed is fixed to about 20 ° regardless of the engine speed, and when the engine speed is 3500 rpm or more, it increases monotonically from about 20 ° to about 35 ° as the engine speed NE increases. It is set to be.

FIG. 6 is a flowchart showing a procedure in which the indicator lighting control program 65a controls turning on / off of the eco indicator 40 based on the engine speed NE, the throttle opening TH, and the coolant temperature TW.

In step S1, it is determined whether the engine is stalled based on the engine speed NE. If the engine is stalled, the process proceeds to step S18, and the eco indicator 40 is turned off. If the engine is not stalled, the process proceeds to step S2. In step S2, the engine load state is determined based on the gear position. If it is not in-gear (not neutral), it is determined that there is no load and the process proceeds to step S3, and if there is no load, the process proceeds to step S18.

In step S3, the warm-up state is determined based on the coolant temperature TW. If it is after warming-up, it will progress to step S4, and if it is before warming-up, it will progress to step S18. In step S4, the lighting state of the eco indicator 40 is determined. If it is turned off, the process proceeds to step S5, and if it is turned on, the process proceeds to step S12.

In step S5, the eco operation determination map 66a is referred to based on the current throttle opening TH and the engine speed NE, and it is determined whether or not the current operation state is within the eco operation region. If it is within the eco driving area, the process proceeds to step S6, and if it is outside the eco area, the process proceeds to step S18.

In step S6, it is determined whether or not the latest throttle opening change rate ΔTH is within a predetermined set value. If it is within the set value, the process proceeds to step S7, and if it is outside the set value, the process proceeds to step S18. In the present embodiment, ΔTH is set to 2 ° / 20 msec.

In step S7, it is determined whether or not the latest engine rotation change rate ΔNE is within a predetermined set value. If it is within the set value, the process proceeds to step S8, and if not, the process proceeds to step S18. In this embodiment, ΔNE is set to 200 rpm / sec.

In step S8, it is determined whether or not the elapsed time after the turn-off of the eco indicator 40 exceeds a predetermined turn-off maintaining time Toff by referring to an after-turn-off elapsed time timer TMoff described later. If TMoff ≧ Toff, the process proceeds to step S9 and the eco indicator 40 is turned on. If TMoff <Toff, the process proceeds to step S18 to keep the eco indicator 40 off.

Thus, in this embodiment, even if the operation state is within the eco operation region, if the elapsed time after the eco indicator 40 is turned off is short (<Toff), the light off state is maintained, so the operation state is the boundary of the eco operation region. Even in the vicinity, the eco indicator 40 can be prevented from blinking in a short cycle.

In step S10, an after-lighting elapsed time timer TMon for counting the elapsed time after the indicator is lit is started. In step S11, the throttle opening TH (THa) when the operation state is determined to be in the eco operation region in step S5 is stored in the TH storage unit 64a of the RAM 64.

On the other hand, if it is determined in step S4 that the indicator is lit, the process proceeds to step S12, where the eco operation determination map 66a is referred to based on the current throttle opening TH and engine speed NE, and the current operation state is determined as eco. It is determined whether or not the vehicle is within the operation region. If it is within the eco driving region, the process proceeds to step S13, and if it is outside the eco driving region, the process proceeds to step S15.

In step S13, it is determined whether or not the current throttle opening TH has changed by more than a predetermined opening from the throttle opening THa stored in step S11 and determined in the eco operation range.

In the present embodiment, as shown in FIG. 9, a rotation range of 20 ° is set as a predetermined width in each direction from the throttle opening THa at the time of determination to the acceleration side (open side) and the deceleration side (closed side). If the change amount of the throttle opening TH is equal to or smaller than the predetermined width, the process proceeds to step S14 and the lighting of the eco indicator 40 is maintained. If the change amount exceeds the predetermined width, the process proceeds to step S15.

In the present embodiment, by performing such control, if the throttle opening THa at the time of determination is 20 ° or less, the eco indicator 40 is turned off even if the current throttle opening TH is the fully closed opening. The lighting state can be maintained without being lost. As a result, even when the throttle opening TH is fully closed during deceleration on a downhill or sudden deceleration during normal driving, the eco indicator remains as long as the engine speed NE is within the eco operation area of the eco operation map. Since the lighting of 40 can be maintained, the eco indicator 40 can be prevented from blinking in response to the throttle opening. It should be noted that, depending on the vehicle model, it is possible to employ a control that always turns off the eco indicator 40 regardless of the amount of change in the throttle opening H when the throttle opening TH is fully closed.

In step S15, it is determined whether or not the elapsed time after lighting of the eco indicator 40 exceeds the predetermined lighting maintenance time Ton by referring to the elapsed time timer TMon after lighting. If TMon ≧ Ton, the process proceeds to step S16 and the eco indicator 40 is turned off. If TMon <Ton, the process proceeds to step S14 and the lighting of the eco indicator 40 is maintained.

Thus, in this embodiment, even if the driving state is outside the eco driving region, the lighting state is maintained if the elapsed time after lighting of the eco indicator 40 is short (<Ton), so the driving state is the boundary of the eco driving region. Even in the vicinity, the eco indicator 40 can be prevented from blinking in a short cycle.

In step S16, the eco indicator 40 is turned off. In step S17, a post-extinguishing elapsed time timer TMoff that measures the elapsed time after the eco indicator 40 is extinguished starts.

FIG. 7 is a graph showing the relationship between the throttle opening TH and the engine speed NE during cruise driving for each gear position. The mark ◇ is the first speed, the mark □ is the second speed, the mark △ is the third speed, The mark indicates the relationship at the fourth speed. Also, the ● mark indicates the relationship in the 4% upslope at the 4th speed, and the ◆ mark indicates the relationship in the 9% upslope at the 4th speed.

According to the eco operation region of the present embodiment, the eco indicator 40 lights up when the climbing slope is up to about 4% as well as during general cruise traveling at each gear position. Therefore, the driver can be made aware of the economics of cruise traveling with little change in the engine speed NE and the throttle opening TH, regardless of whether or not there is a gradient.

Further, when the vehicle goes downhill with the eco indicator 40 lit, the amount of change in the rotation angle for returning the throttle opening TH to the deceleration side or the change in the engine speed by changing the gear position to the low speed side. By keeping the eco indicator 40 on or off, an appropriate gear position can be urged to the driver.

According to the eco operation region of the present embodiment, the eco indicator 40 is lit in the cruise operation using the 3rd speed and the 4th speed, which are particularly frequently used, while driving in a high speed range exceeding 70 km / h, The eco indicator 40 is turned off during low fuel consumption driving such as low gear driving such as second gear. Therefore, it can be seen that the driving state in which the eco indicator 40 is lit and the low fuel consumption driving show a high correlation.

In the above-described embodiment, the determination conditions for eco operation are defined as being defined in a map format, but the present invention is not limited to this, and the engine speed NE and the throttle opening TH are used as parameters. It may be defined by a function expression.

35 ... Meter device, 40 ... Indicator, 41L, 41R ... Direction indicator lamp, 42 ... Head lamp indicator, 43 ... Neutral lamp, 44 ... Speedometer, 45 ... Fuel meter, 46 ... Clock, 47 ... Odometer, 50 ... Display panel

Claims

In the driving state display device of a saddle-ride type vehicle that judges the eco-driving state and lights the indicator,
Means (62) for detecting the engine speed;
Means (61) for detecting the throttle opening;
Judgment condition storage means (66a) that determines the lighting condition of the indicator with the engine speed and the throttle opening as variables,
A lighting control means for turning on the indicator when the rate of change of the engine speed and the rate of change of the throttle opening are each equal to or less than a specific determination threshold value and the engine speed and the throttle opening satisfy the lighting condition ( 60, 65a), a driving state display device for a saddle-ride type vehicle.
2. The operating state display device for a saddle-ride type vehicle according to claim 1, wherein the lighting control means turns off the indicator when the engine speed or the throttle opening does not satisfy the lighting condition.
The throttle opening when the engine speed and the throttle opening satisfy the lighting condition is stored, and then the indicator is changed when the throttle opening changes by more than a predetermined opening from the stored throttle opening. The driving state display device for a saddle-ride type vehicle according to claim 1 or 2, wherein the driving state display device is turned off.
4. The operating state display device for a saddle-ride type vehicle according to any one of claims 1 to 3, wherein the lighting control means does not turn on the indicator until an elapsed time after the indicator turns off passes a predetermined time.
3. The driving state display device for a saddle-ride type vehicle according to claim 2, wherein the lighting control means does not turn off the indicator until an elapsed time after lighting of the indicator passes a predetermined time.
6. The driving state of the saddle-ride type vehicle according to claim 1, wherein the lighting condition storage means is a map in which the lighting condition of the indicator is determined by using the engine speed and the throttle opening as variables. Display device.
The driving state display device for a saddle-ride type vehicle according to any one of claims 1 to 6, wherein the indicator is provided in the vicinity of a neutral lamp on a meter panel.
8. The engine speed range that satisfies the lighting condition is equal to or higher than the connection speed of the centrifugal clutch and equal to or lower than the engine speed corresponding to the legal maximum speed at the highest speed gear. A driving state display device for a saddle-ride type vehicle according to claim 1.
The saddle riding according to any one of claims 1 to 8, wherein the upper limit value of the throttle opening degree that satisfies the lighting condition is an upper limit value related to a throttle opening degree in a torque linear region in which fuel efficiency is maximized. Type vehicle driving state display device.
10. The operating state display device for a saddle-ride type vehicle according to any one of claims 1 to 9, wherein a lower limit value of a throttle opening in the lighting condition is fully closed.