JPS6220933A - Travel control device in vehicle speed change gear - Google Patents

Abstract

PURPOSE:To obtain a reduction ratio in accordance with the running condition of a vehicle to satisfy the travel feeling of the vehicle, by computing the reduction ratio in accordance with control signals from an automatic and manual change-over means and a shift position instructing means to drive a speed change gear drive means. CONSTITUTION:A reduction ratio control mean 2 is coupled with an automatic and manual change-over means 1 and a shift position instructing means 3, and computes a reduction ratio in accordance with a control signal for changing over the reduction ratio between the automatic control and the manual control and a control signal for changing the reduction ratio during manual control, in order to drive a speed change gear drive means 8. Accordingly, when the driver manipulates the automatic and manual change-over means 1 and the shift position instructing means 3, a reduction ratio suitable for the running condition of the vehicle may be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a travel control device for a vehicle transmission that further improves the driving feeling.

(Prior art) For example, in a motorcycle, the power transmission system of an internal combustion engine is equipped with a transmission, and this transmission outputs the rotational power of the internal combustion engine at a predetermined reduction ratio to an automatic clutch, etc. disposed at a later stage. This allows for efficient driving.

This transmission has a reduction ratio that changes depending on the driving conditions to enable comfortable driving under complex driving conditions, but the control of this reduction ratio depends on the vehicle type and driver's requests. ,
There are those that change a predetermined reduction ratio that is manually set in advance, and those that automatically change the reduction ratio steplessly by detecting, for example, the throttle opening and vehicle speed.

(Problem to be solved by the invention) In this way, the reduction ratio is controlled by manually changing the reduction ratio or automatically changing the reduction ratio depending on the vehicle type, driver's request, etc. The operator could not arbitrarily choose between manual control and automatic control.

By the way, depending on the driving conditions, the driver may be able to freely perform operations according to the driving conditions and the driver, such as manually starting from the set low position and controlling the automatic continuously variable transmission from a predetermined speed. By allowing selection, the driving feeling will be further improved and driving will be possible according to the driver's preference.

This invention was made against the background of the above circumstances, and provides a vehicle that can arbitrarily select between automatic control and automatic control according to the driving conditions and the driver's wishes, and can drive in the direction of the driving feeling and as desired. The purpose of this invention is to provide a travel control device for a vehicle transmission.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides automatic manual switching means for switching the reduction ratio between automatic control and manual control, and a speed change position command for changing the reduction ratio during manual control. and calculating a reduction ratio based on control signals from the automatic manual switching means and the shift position command means to drive the transmission driving means;
The present invention is characterized by comprising a reduction ratio control means that selectively performs automatic control and manual control.

(Function) In the present invention, selection between automatic control and manual control is performed by a control signal of the automatic manual switching means. Then, during manual control, the transmission driving means is driven to achieve the reduction ratio commanded by the reduction ratio control means based on the control signal from the transmission position command means.

As a result, the driver can obtain a reduction ratio according to the driving conditions by operating the automatic manual switching means and the shift position command means, improving the driving fee and driving speed according to the driver's preference. I can do it.

(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 denotes automatic manual switching means, and by operating this automatic manual switching means 1, a control signal for switching the control of the reduction ratio between automatic and manual is input to the reduction ratio control means 2. A control signal generated by the operation of the speed change position command means 3 is input to the reduction ratio control means 2 .

The reduction ratio control means 2 also receives throttle opening information from the throttle opening detection means 4, vehicle speed information from the vehicle speed detection means 5,
Further, engine rotation speed information is inputted from the engine rotation speed detection means 6.

Further, a position signal indicating the current position of the transmission drive means 8 is manually inputted to the reduction ratio control means 2 from the position detection means 7, and the command position and current position of the transmission drive means 8 are set based on the reduction ratio. The amount of operation of the transmission drive means 8 is determined by comparing the values.

The transmission drive means 8 operates the transmission 9 based on this drive signal.
operates so that the gear ratio reaches the set reduction ratio.

When a control signal instructing a reduction ratio is input from the shift position command means 3 under the condition that a manual control signal from the automatic manual switching means 1 is input, the reduction ratio control means 2 performs the commanded deceleration. Transmission drive means 8 set based on the ratio
The operating amount of the transmission drive means 8 is determined by comparing the commanded position with the current position.

Further, the reduction ratio control means 2 receives the throttle opening information from the slow/torque opening detection means 4 and the engine rotation speed detection means under the condition that the automatic control control signal is input from the automatic manual switching 1st stage 1. A predetermined reduction ratio is calculated from the engine speed information from 6 and the lj speed information from vehicle speed detection means 5, and a drive signal is output to transmission drive means 8.

FIGS. 2 to 9UA show more specific embodiments in which the present invention is applied to a toroidal continuously variable automatic transmission.

In the figure, the reference numeral 20 is mounted on a scooter type motorcycle.
A power unit 21 of this internal combustion engine 20 includes a crankshaft 2 driven by a piston 22.
3 and an axle 25 on which a rear wheel 24, which is a driving wheel, is suspended are rotatably supported.

A generator 26 is provided at one end of the crankshaft 23, and a one-way clutch 27 is provided at the other end. This one-way clutch 27 is connected to a starter motor 28 via a connecting shaft 29.

A toroidal continuously variable automatic transmission 30 is disposed at the tip of the crankshaft 23 and changes the speed of the power of the internal combustion engine 20.
It is transmitted to the axle 25 via an automatic clutch 31 disposed at the rear stage.

Inside the housing 32 of the continuously variable automatic transmission@30.

An input shaft 33 and an output shaft 34 connected to the crankshaft 23 are rotatably supported. The output shaft 34 has an output gear 3.
5 is keyed and connected to a clutch/second gear 37 of the automatic clutch 31 via a timing belt 36.

A cam plate 38 is integrally rotatably disposed on the input shaft 33, and power is transmitted to the input disk 40 via rollers 39. The input disk 40 is loosely coupled to the input shaft 33, and the output disk 41 is disposed opposite to the input disk 40.

Rotating curved surfaces are formed on the human power disk 40 and the output disk 41 to face each other, and a pair of power rollers 4 are provided between the rotating curved surfaces.
2 are arranged. An output gear 43 is press-fitted into the shaft portion of the output disk 41 and meshes with an input gear 44 of the output shaft 34 .

The power rollers 42 have a toroidal convex surface that engages with the rotating curved surface, and are rotatably provided on the roller shafts 45, respectively. Each of the roller shafts 45 is rotatably supported by a trunnion 46, and the power roller 42 transmits the power from the input disk 40 to the output disk 41, and controls the rotation ratio of both disks 40, 41, that is, the reduction ratio. .

The trunnion 46 is arranged in the vertical direction and is held by support members 47 and 48 arranged above and below, so that it can move slightly in the up and down direction. The upper support member 47 and the lower support member 46 are supported by the housing 32 via an upper post 49 and a lower post 50, respectively.

A nut member 51 is screwed onto a bolt member 52 at the upper part of the trunnio 746. The bolt member 52 is press-fitted into a connecting member 53, and this connecting member 53 is further press-fitted into the trunnion 46. The rotation of the nut member 51 causes the trunnion 46 to move a small amount in the axial direction X. As a result, the power roller 42 is displaced in the axial direction X, so that a known automatic speed change effect occurs, and the power roller 42, and therefore the trunnion 46, rotate around the axis. Since the rotation direction follows the nut member 51, the deviation of the trunnion 46 returns to its original state as the trapezoidal thread of the bolt member 52 leads. When the power roller 42 returns to the neutral position, that is, when the rotation axis Y of the power roller 42 and the input axis intersect, the power roller 42 stops rotating and a desired reduction ratio is obtained.

A guide 55 that slides on the rotating shaft 54 of the transmission drive means 8
A wheel gear 57 provided at the end of a zero-rotation shaft 54 to which a nut member 51 is connected via a link 56 meshes with a worm gear 59 of a servo motor 58.

The rotation of the servo motor 58 causes the guide 55 to move toward the rotating shaft 5.
4 to rotate the nut member 51 in the forward and reverse directions.

Servo motor 58 is driven by a travel control device.

The reduction ratio control means 2 of this travel control device receives vehicle speed information from a vehicle speed detection means 5 provided on the rear wheel 24 and engine rotation speed information from an engine rotation speed detection means 6 provided on the crankshaft 23.

Throttle opening information is input from a throttle opening detection half-recess 4 provided in the intake system.

Control signals are input to the reduction ratio control means 2 from the automatic manual switching means 1 and the shift position command means 3.

The automatic manual switching means 1 and the shift position command means 3 are connected to the seventh
As shown in the figure and FIG. 8, it is provided near the grip 11 on the left side of the handle 10.

The automatic manual switching means 1 is composed of a changeover switch, and the shift position command means 3 is composed of a changeover switch, as shown in FIG.
Consists of a rotary set of switches, 1st speed, 2nd speed...
It is operated discontinuously up to 5th speed, thereby outputting a control signal that changes the reduction ratio in stages.

As shown in FIG. 8, this shift position command means 3 is also composed of a sliding switch, and is continuously operated by sliding the switch, thereby outputting a control signal for steplessly controlling the reduction ratio.

The reduction ratio control means 2 calculates a reduction ratio based on these control signals, and compares the command motor position of the servo motor 58 based on this reduction ratio with the current motor position detected by the position detection means 7. Then, a drive signal is output to the servo motor 58. Based on this drive signal, the servo motor 58
The continuously variable automatic transmission 30 operates to achieve the set reduction ratio.

The clutch gear 37 is loosely engaged with the clutch shaft 60 of the automatic clutch 31 . A clutch outer 61 is rotatably provided on the clutch gear 37, and a clutch center 62 is provided inside the clutch gear 37 so as to be rotatable integrally with the clutch shaft 60. The clutch is connected by slidingly contacting the clutch plates 63 and 64.

The clutch plates 63 and 64 are connected to the clutch outer 61
Centrifugal row arranged in 1. Uh, 65 is clutch outer 61
It moves outward according to the centrifugal force caused by the rotation of Cl-2.
This is done by pushing the thousand plates 63 and 64 in the axial direction. In FIG. 3, the right half of the automatic clutch 31 shows a clutch connected state in which the centrifugal roller 65 has moved outward, and the left half shows a clutch disconnected state in which the centrifugal roller 65 is located inward.

Next, the operation of this embodiment will be explained based on the schematic control broach yard shown in FIG.

In step a, the data area is initialized.
A determination is made as to whether or not it is manual control (step b). In the case of manual control in which the automatic manual switching means 1 is set to the manual side, a determination is made as to whether or not it is a shift position command (step b).
Step C). In this case, the shift position command means 3
In the rotary set switch shown in the figure, the process jumps to step h, the reduction ratio is calculated by the reduction ratio control means 2, and stepless manual control of the transmission is performed in steps i, j, and l, which will be described later.

Further, when the shift position command means 3 is a slide type switch shown in FIG. 8, the reduction ratio control means 2 jumps to step h based on the control signal output from the movement position and calculates the reduction ratio, Stepless manual control of the transmission is performed in steps h, i, and j.

If it is not manual control, it is determined whether or not it is automatic control (step d), and if automatic control is selected, throttle opening information, engine rotation speed information, and vehicle speed information are input (step e).

f, g) Based on these pieces of information, the reduction ratio control means 2 calculates the reduction ratio (step h).

i). Then, based on this set reduction ratio, the position of the transmission drive means 8 is detected and the command position of the servo motor is determined.
The drive position of the servo motor is set by comparing it with the current position (step j).

k), thereby performing automatic control of the transmission to drive the transmission to obtain the set reduction ratio (step l).

Therefore, depending on the driving conditions, for example, when starting, the automatic manual switching means 1 may be set to the manual side, and if the shift position command means 3 is a rotary switch shown in FIG. 7, it may be set to the low position of 1st gear. Start and increase the reduction ratio step by step to 2nd and 3rd gears. When the speed reaches a predetermined speed, the automatic/manual switching means 1 is switched to the automatic side to control the automatic continuously variable speed.

In addition, if the shift position command means 3 is a slide type switch shown in FIG. 8, it is set to the low side for starting, and is slid to the top side to steplessly increase the reduction ratio to achieve a predetermined speed. When this happens, the automatic/manual switching means 1 is switched to the automatic side to control the automatic continuously variable transmission.

Furthermore, depending on the driver, it is possible to drive with only automatic control or only with manual control, and by freely selecting these, the driving feeling will be further improved and the driver can drive according to his or her preference. It becomes possible.

(Effects of the Invention) As described above, the present invention includes a reduction ratio control means which calculates a reduction ratio based on control signals from an automatic manual switching means and a shift position command means, and drives a transmission drive means. Since automatic control and manual control are selectively performed, the driver can obtain the reduction ratio according to the driving conditions by operating the automatic manual ν1 mode means and the shift position command means, and can adjust the driving speed. This improves the ring and allows the driver to drive according to his/her preference.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the configuration of the present invention, Figs. 2 to 9 show an embodiment in which the invention is applied to a toroidal continuously variable transmission, and Fig. 2 is a side view of a motorcycle. , Figure 3 is a cross-sectional view of Power Unit/:・, Figure 4 is the 3
The IV-IV sectional view in the figure, Figure 5 is the plan view of Figure 4, and Figure 6 is the top view of Figure 4.
7 is a front view of the operating section, FIG. 8 is a front view of other operating sections, and FIG. 9 is a schematic control flowchart. ■ Automatic manual switching means 2 Reduction ratio control means 3 Shift position command means 4 Throttle opening detection means 5 Vehicle speed detection means 6 Engine rotation speed detection means 7 ...Position detecting means 8...Transmission drive means patent Applicant: Yamaha Motor Co., Ltd. Representative Patent Attorney Toshio Tsuru Waka, PA, '=,S\-]7) Figure 4 Procedure Amendment 1 Species: October 16, 1985 Director General of the Patent Office Mr. Uga Michibu 1 °I Display of 1985 Patent Application No. 160914 2 Title of the invention Travel control device for vehicle transmission 3 Person making the amendment' Relationship with ¥1 Patent applicant address: 2500 Shingai, Iwata City, Shizuoka Prefecture Name (AO7) Yamaha Motor Co., Ltd. 4 Agent address: 1
51 Address No. 6, 2-23 Yoyogi, Shibuya-ku, Tokyo Subject of amendment Detailed explanation of the invention in the specification (1) Specification No. 3
"Automatic control" in line 8 of 100 is corrected to "-"-motion: Tori control." (2) Same, ('';"thereby" in page 4, line 7 is corrected as "in this way." Corrected 1- to ``configured.'' A control signal is output that changes the value in stages.
I am corrected. (5) Delete "and" from line 5 on page 13 of the same book. (6) “Slate style” in 140, lines 5 and 6 of the same book
is corrected as "sliding type". From F

Claims (1)

[Claims] A travel control device for a vehicle transmission that transmits the output of an internal combustion engine to drive wheels via a transmission and controls the reduction ratio of the transmission according to driving conditions, which provides automatic control and manual control of the reduction ratio. an automatic manual switching means for switching, a transmission position command means for changing the reduction ratio during manual control, and a transmission driving means by calculating a reduction ratio based on control signals from the automatic manual switching means and the transmission position command means. A travel control device for a vehicle transmission, comprising a reduction ratio control means for selectively performing automatic control and manual control.