JPS62268791A - Travelling controller of non-stage automatic transmission for motorcycle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a driving control device for a continuously variable automatic transmission for a motorcycle that controls a gear ratio according to the driving environment. (Prior Art) Automatic Some motorcycles are equipped with a continuously variable automatic transmission in the power transmission system of the internal combustion engine.This continuously variable automatic transmission enables efficient operation of the internal combustion engine by controlling the gear ratio according to the driving condition. The aim is to improve fuel efficiency.

By the way, some motorcycles have a side stand, and this side stand is rotatably supported by the vehicle body via, for example, a pin, and is stored in the vehicle body by a spring when the motorcycle is running. This side stand is rotated downward and pulled out when stopped, and is used to support the vehicle body against the road surface, but it is rotated against a spring until it reaches a predetermined rotation position, and then reversed. It is rotated by the compressive force of the spring, and is locked at a predetermined position (i7) by a stopper or the like.

(Zn point while trying to invent or solve) In this way, the side stand is pulled out during a power outage and is not needed when driving. The side stand may be pulled out against the springs, causing it to wobble.This rattling sound not only disturbs comfortable driving, but also causes wear and tear on the pins, springs, and other parts that support the side stand as a single unit.7 Therefore, in such a case, it is necessary to stop the vehicle and return the side stand to the predetermined stowed state, but in this case, if the fltl control of the gear ratio is stopped and the vehicle speed is adjusted by the rider's manual accelerator operation, then the vehicle stops. This invention was made in view of this situation, and stops the control of the gear ratio when the side stand is not in a predetermined stowed state. It is an object of the present invention to provide a running brown control device for a continuously variable automatic transmission for a motorcycle. A travel control device for a continuously variable automatic transmission for a vehicle that transmits the output of an internal combustion engine to drive wheels via a stepped automatic transmission, and controls a gear ratio of the continuously variable automatic transmission according to a driving condition, The vF feature includes a side stand detection means for detecting a retracted state of a side stand provided in the vehicle body, and a side stand retracted state determination means for stopping control of the gear ratio when the side stand is not stowed based on a detection signal from the side stand detector. It is said that

(Function) In this invention, the side stand detecting means detects the retracted state of the side stand, and based on the detection signal from the side stand detecting means, the side stand retracted state determining means controls the gear ratio of the false automatic transmission when the side stand is not retracted. To do this, the rider adjusts the vehicle speed by manually operating the accelerator, stops the vehicle, and places the side stand in a predetermined stowed state.

(Example) Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings.

FIG. 1 is a block diagram showing the configuration of the present invention.

In the figure, reference numeral 1 indicates vehicle speed detection means for detecting vehicle speed;
Reference numeral 3 indicates a throttle opening detection means for detecting the opening of the throttle which adjusts the amount of fuel supplied to the internal combustion engine. Reference numeral 3 indicates a side stand detection means for detecting the retracted state of the side stand that supports the vehicle body against the road surface when the vehicle is stopped.

The vehicle speed information obtained from the vehicle speed detection means 1 and the throttle opening information obtained from the throttle opening detection means 2 are input to the target gear ratio calculation means 4, and the target gear ratio calculation means 4 calculates the ; The control target gear ratio is calculated. This calculation result is input to the gear ratio control means 5, which calculates the target control 4Q position of the transmission drive means 6 of the continuously variable automatic transmission. Based on the drive signal from the gear ratio control means 5, the transmission drive means 6 drives the continuously variable automatic transmission to control the gear ratio according to a predetermined running condition.

The detection signal of the side stand detection means 3 is inputted to the side stand retracted state 'I'l + disconnection means 7. If the side stand is not in the retracted state, M control stop No. 43 is manually inputted to the target gear ratio calculation means 4, stop the calculation,
When the target gear ratio calculating means 4 stops calculating, the continuously variable automatic transmission transmits the power of the internal combustion engine to the drive wheels at the gear ratio when the side stand is out! do.

For this reason, the lighter controls the throttle based on the accelerator operation, regulates the amount of fuel supplied to the internal combustion engine, stops the vehicle, and when the lighter is stowed on the side stand or in a predetermined position.
A detection signal from the side stand detection means 3 forces a release signal from the side stand storage state determination means 7, and this release signal causes the target gear ratio calculation means 4 to be driven again.

Incidentally, when the side stand stowed state determining means 7 stops driving the target gear ratio calculating means 4, a warning that the side stand is closed may be displayed on a display or the like 6. ; Figure 5 shows a roughly specific embodiment in which the present invention is applied to a toroidal continuously variable automatic transmission.

In the figure, numeral 20 is Scooter Pear's own crab-wheeled vehicle;
A front wheel 21 is suspended on the front side of the vehicle body, holding a front fork 22. A rear wheel 2, which is a driving wheel, is on the rear side of the vehicle body.
3 is rotatably supported by the power unit 26 of the internal combustion engine 25 via the vehicle +11124, and the power unit 26
The front side is supported by a vehicle body frame 28 via a bracket 27, and the rear side is supported by a suspension (not shown).

A bracket 29 is fixed to a vehicle body frame 28 forming a step portion at the center of the vehicle body, and a side stand 30 is provided on the bracket 29 so as to be rotatable about a pin 31 as a fulcrum. This side stand 30 has a foothold part 30a in its center, and is stored in the vehicle body side by a spring 32, and in this stored state, the tip part 30b is located at the rear.

When the side stand 30 is in use, when the footrest 30a is pushed downward with the foot, the side stand 30 is pulled out from the vehicle body downward against the spring 32 using the bin 31 as a fulcrum, and the tip 30b is pulled out in the state shown by the two-dot chain line in FIG. supports the vehicle body by contacting the road surface.

As shown in FIG. 3, the internal combustion engine 25 has a crankshaft 33 -GF! 6 is provided with a one-way clutch 34, and this one-way clutch 34 is connected to a starter motor 35 via a connecting shaft 36. A toroidal continuously variable automatic transmission 37 is disposed at the tip of the crankshaft 33.
In the housing 38, an input shaft 39 connected to the crankshaft 33 via a one-way clutch 34, and an output shaft 40 loosely engaged with the human power shaft 39 are rotatably supported.

A cam plate 41 is rotatably disposed on the human power shaft 39, and power is transmitted to the input disk 43 via rollers 42. An input disk 43 is loosely engaged with the input shaft 39, and an output disk 44 is disposed opposite to the input disk 43.

The output disk 44 is provided on the output shaft 40, the output disk 44 and the input disk 43 are formed with opposing rotating curved surfaces, and a pair of power rollers 45 are disposed between the rotating curved surfaces. An output gear 46 is press-fitted into the output shaft 40 and meshes with a gear 48 on the intermediate shaft 47 .

The power rollers 45 each have a toroidal convex surface that engages with the rotating curved surface, and are each rotatably supported by a trunnion 49 via a roller shaft to transmit power from the input disk 43 to the output disk 44. At the same time, the rotation ratio of both disks 43 and 44, that is, the gear ratio is controlled.

The trunnion 49 is supported by the housing 38 so as to be movable in the vertical direction (direction perpendicular to the plane of paper in FIG. 3). When the trunnion 49 moves a small amount in the vertical direction, the power roller 45 is displaced in the vertical direction. As a result, a known automatic gear shift effect occurs, allowing a desired gear ratio to be obtained.

The eight shifts in the vertical direction of the trunnion 49 are performed by the transmission driving means 6 shown in FIG. A trunnion 49 is attached to the guide 51 that screws on the top.
are connected via a link 52 and a nut member 53. A wheel gear 54 provided at the end of the rotating shaft 50 meshes with a worm gear 56 of a servo motor 55, and as the servo motor 55 is driven, the guide 51 moves linearly on the rotating shaft 50 to move the trunnion 49 in the forward and reverse directions. It is designed to rotate.

The servo motor 55 is driven by the gear ratio control means 5 shown in FIG.
The calculation results of the i calculation means 4 are inputted, and the target gear ratio calculation means 4 receives vehicle speed information from the vehicle speed detection means 1 provided on the rear wheel 23 and opening/closing information from the throttle opening detection means 2 provided on the throttle mechanism. is input.

Further, the target gear ratio calculating means 4 is controlled by a side stand storage state determining means 7, and a detection signal from the side stand detecting means 3 is inputted to the side stand storage state determining means 7.

An output pulley 57 is keyed to the intermediate @47, and is connected to a large convertible pulley 60 of a self-gravity clutch 59 via a timing heald 58. An input pulley 60 is loosely engaged with the clutch 1liilh61 of the automatic clutch 59, a clutch center 62 is provided on the input pulley 60 so as to be rotatable therewith, and a taratch outer 63 is provided on the outside thereof so as to be rotatable together with the clutch shaft 61. ing. Rotation of the clutch center 62 causes the centrifugal rollers 64 to move outward and bring the clutch plates 65 and 66 into sliding contact, and when the clutches are connected, the clutch shaft 61 rotates together, applying driving force to the axle 24. In FIG. 3, the right half of the automatic clutch 59 shows a clutch engaged state in which the centrifugal roller 64 has moved outward, and the left half shows a clutch disengaged state in which the centrifugal roller 64 is located inward.

Next, the operation of this embodiment will be explained based on the control flowchart of FIG. 5. In step a, the vehicle speed detecting means 1 performs vehicle speed processing to obtain vehicle speed information from the rotational speed of the rear wheel 23, and in step b
Then, the throttle opening detection means 2 determines the amount of fuel co-supplied to the internal combustion engine 25 by 3! ! Throttle opening processing is performed to obtain throttle opening information from the throttle operation to be adjusted, and this information is read.

Then, in step C, the side stand retracted state determining means 7 operates based on the detection signal of the side stand detecting means 3, and when the side stand 30 is in a predetermined retracted state, the vehicle speed information obtained in step a and the vehicle speed information obtained in step b are activated. Obtained throttle opening +? i information, the target gear ratio is calculated by the target gear ratio calculating means 4 (step d), and this calculation result is compared with the current gear position by the gear ratio controlling means 5 to calculate the target control position (step e). ). Based on the result obtained from this calculation, the transmission driving means 6 controls the servo motor 55 (step f) to control the gear ratio of the continuously variable automatic transmission 37.

In step C, for example, when the side stand 30 is up when the vehicle is stopped, or when the side stand 30 stored in the vehicle body while driving is not in a predetermined storage state due to vibrations of the vehicle body, etc., the gear ratio control is performed. Stop step g
), jump to step a. Therefore, by manually operating the accelerator by the rider and reducing the throttle opening, the rotational speed of the internal combustion engine is reduced, the vehicle speed is reduced, and the vehicle is stopped. In this way, by manually operating the gear ratio without automatically controlling the gear ratio, it is possible to adjust the vehicle speed depending on the driving condition and stop the vehicle.

This transmission ratio control can be stopped when the vehicle is stopped and the side stand is 3.
This process is continued until 0 is returned to the predetermined stored state. When the side stand 30 is retracted, a release signal from the side stand retracted state determining means 7 causes the target gear ratio gi calculation means to enter the driving state, making it possible to automatically control the gear ratio.

(Effects of the Invention) As described above, in this invention, the side stand detecting means detects the stowed state of the side stand, and based on the detection signal, the side stand stowed state determining means controls the gear ratio of the continuously variable automatic transmission when the side stand is not stowed. I made it stop, so
If the side stand is not properly stowed, the rider can manually operate the accelerator to adjust the vehicle speed according to the driving conditions, stop the vehicle, and return the side stand to the specified stowed state.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the configuration of this invention, Figs. 2 to 5 show an embodiment in which this invention is applied to a Troutal type continuously variable automatic transmission, and Fig. 2 shows a side view of a motorcycle. 3 is a sectional view of the power unit, FIG. 4 is a plan view of the transmission drive means, and FIG. 5 is a flowchart of the control program. 1... Vehicle speed detection means 2... Throttle opening detection means 3... Side stand detection means 4... Target gear ratio calculation means 5... Gear ratio control means 6... Transmission drive means

Claims (1)

[Claims] Driving of a continuously variable automatic transmission for a vehicle that transmits the output of an internal combustion engine mounted on a vehicle body to drive wheels via a continuously variable automatic transmission, and controls the gear ratio of the continuously variable automatic transmission according to the driving condition. The control device includes a side stand detecting means for detecting a retracted state of a side stand provided in the unit, and a side stand retracted state determining means for stopping control of the gear ratio when the side stand is not stowed based on a detection signal from the side stand detecting means. Travel control device for continuously variable automatic transmissions for motorcycles.