JPS61146643A - Operating unit for power transmission device of car - Google Patents

Abstract

PURPOSE:To improve the drivability in an operating unit for power transmission system of car mounting a stepless speed changer enable of continuous variation of speed change ratio, by providing means for manually setting the advancing position in stepless. CONSTITUTION:The operating unit 1 in power transmission system mounting a stepless speed changer 2 can select between parking (P) range, reverse (R) range, neutral (N) range and manual advance setting area or manual (M) range through reciprocation of shift lever 4. In M-range, the shift lever 4 can be reciprocated continuously from High to Low to produce a speed change ratio signal from speed change ratio variable range setting means 5 with correspondence to the sliding position. The setting means 5 is provided with a potentiometer 6 comprised of a contact 524 fixed to a transparent sliding cover 52 having a shift lever through-hole 51 and a resistor member 54 fixed to the lower cover 56.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an operating device for a vehicle power transmission device equipped with a continuously variable transmission.

[Prior Art] In the control of a vehicle power transmission system equipped with a conventional continuously variable transmission, there is a so-called automatic transmission D range that automatically changes the torque ratio according to the driving condition of the vehicle, and an engine brake. In the D range, for example, the torque ratio of the continuously variable transmission is automatically adjusted to achieve the engine's best fuel efficiency rotation speed according to the throttle opening, so as to perform optimal fuel efficiency control. is controlled.

In the L range, the torque ratio of the continuously variable transmission is forcibly downshifted from 1 to 1 to obtain engine braking.

[Problem to be solved by the invention 1] In the vehicle transmission device equipped with the above-mentioned continuously variable transmission,
Since there are only two forward travel ranges, the D range and the forward travel range, it is not possible to set a shift state suitable for various travel conditions. For example, if you shift to a trial range that requires engine braking when exiting the plane, only one shift pattern is set for the trial range, so you will not be able to apply enough engine braking on a steep downhill slope. When the vehicle speed becomes too high and it becomes necessary to use a regular brake such as the foot brake, or when going down a gentle slope, the engine brake becomes too effective and the vehicle speed decreases too much, making it difficult to press the accelerator pedal or shift to D range. This poses a problem in that it is troublesome for the driver.

SUMMARY OF THE INVENTION An object of the present invention is to provide an operating device for a vehicle power transmission device that allows a driver to manually control the gear ratio of a continuously variable transmission according to the driver's will.

[Means for Solving the Problems] The operating device for a vehicle power transmission device of the present invention is an operating device for a vehicle power transmission device equipped with a continuously variable transmission capable of continuously changing a gear ratio. The vehicle is configured to have a forward travel position that can be arbitrarily set in a stepless manner.

[Actions and Effects of the Invention] With the above configuration, the operating device for a vehicle power transmission device of the present invention has the following actions and effects.

b) Since the speed ratio can be changed arbitrarily in the speed selection range of the forward traveling position by manual operation by the driver, the engine brake can be set according to the magnitude of the slope on the downhill road.

口) Since the driver can set the gear ratio within a certain limited range when driving, the driver can drive according to his will, improving drivability.

C> Even when starting on roads with a low coefficient of friction such as snowy roads,
The vehicle can be started at any gear ratio, allowing for smooth driving.

[Example] The present invention will be explained based on embodiments shown in the drawings.

1 to 11 show a first embodiment of an operating device for a vehicle power transmission device according to the present invention.

This embodiment shows an operation device 1 for a vehicle power transmission device of the present invention incorporated into a control device 100 for a vehicle power transmission device.

The present invention is an operating device 1 for a power transmission device for a vehicle equipped with a continuously variable transmission device 2 (described later) that can continuously change the gear ratio, and a manual setting device that can arbitrarily set the gear ratio of the continuously variable transmission device 2. It consists of WI3.

The manual setting position 3 is a parking (P) range, which is a parking position, by reciprocating sliding of the shift lever 4, which is an operating member.
Select Reverse (R) range, which is a reverse running position, Neutral (N) range, which is a neutral position, and Manual (M) range, which is a forward running position that can be set steplessly with the help of someone. In the manual (M) range, it is possible to slide back and forth from HIGH to LOW, and when the shift lever 4 is set to the M range, the variable gear ratio outputs a gear ratio signal according to the set position. A range setting means 5 is provided.

The shift lever 4 includes a hollow part 41, a bushing rod 44 provided in the hollow part 41 and operated by a bushing button 43 of a T-shaped handshake 42 of the head 40, and a base plate 45 pivotally connected to the vehicle body. A connecting member (push-pull cable) 476 is fixed to the range part 450 through a bushing 46 with a bolt 461, and is connected to, for example, a parking mechanism through a connecting member (push-pull cable) 476 covered by a cover 411. ring 47
2. It consists of a snap bin 413 and a lower end 47a as shown in the figure, which has a bidirectional protrusion 41 welded around a plate 415 fixed to the bin 414 with a washer 478.

The bushing rod 44 has a middle part 441 with a small diameter, a lower end part 442 with a larger diameter, a spring 443 provided at the lower end part 442, and a through hole 445 in the radial direction of the lower end part 442.
, a window 49a formed on the outside m48 of the shift lever 4,
49b and a groove bin 444 that passes through the active edge 491 of the detent plate 49 fastened to the base plate 45 with bolts, and the base plate 45 is connected to the upper part 4.
A convex position indicator cover 454 having an opening 452 through which the shift lever 4 is inserted from 51 and display windows 453P, 453R, 453N, and 453M is fixed, and a light bulb stand 456 into which a light bulb 455 is screwed is further fixed.

The detent plate 49 adds a resistance force to the operation of the shift lever 4 in the M range by a sliding resistance on the upper part 492, and also fixes the shift lever 4 at a set position by a spring force. Outer wall 4 of shift lever 4
A leaf spring 494 is fixed to the detent plate 49 and is in contact with the detent plate 49. Furthermore, a leaf spring 494 is provided, which is arranged parallel to the working surface of the shift lever 4, and has a smooth circle corresponding to the N and 01M positions of the shift lever 4. An arc-shaped intermediate continuous portion 495A, eight portions 495B that are connected via the step 495a of the intermediate continuous portion 495A and correspond to the R position of the shift lever 4, and steps 495b, 495 on the eight portions 495B.
It consists of a guide plate 496 having a working edge 491 formed of a portion 495C that corresponds to the position P of the shift lever 4, and a fastening plate 497 that is bent from the guide plate 496.

The variable gear ratio range setting means 5 includes a sliding cover 52 made of transparent resin having a circular hole 51 through which the shift lever 4 is inserted, and an opening 53 formed in the same direction as the operating direction of the shift lever 4 and through which the shift lever 4 is inserted. , and a lower cover 56 provided with a potentiometer 6 formed by a resistance member 54 and a contact 524 (to be described later) on an upper part 55.

The sliding cover 52 is curved in the longitudinal direction, has stepped portions 521 and 522 formed at both ends, protrudes from a central portion 523 toward the right in the figure, has a colored band for indicating a shift position, and gradually decreases toward the tip. , a protrusion 526 that fastens a metal contact 524 that slides on the resistance member 54 with a screw 525.
is formed.

The lower cover 56 includes an upper portion 55 having a curved portion 561 shorter than the curved portion 527 of the sliding cover 52, an extension portion 564.565 bent and extended from both ends 562.563 of the upper portion 55, and an extension portion 564.565 extending from both ends 562.563 of the upper portion 55. It consists of fastening parts 56B and 567 that are bent outward and fastened to the base plate 45 with bolts.

The potentiometer 6 outputs a potential difference from the movement of the contact point 524 to a set torque ratio detection device 62 connected to a cord 61 and a connector 63, which detects the set torque ratio within the set gear ratio variable range, and accurately controls the movement of the shift lever 4. to be detected.

FIG. 9 shows the first operating device of the vehicle power transmission device of the present invention.
FIG. 2 is a block diagram of an embodiment.

The control device 100 for a vehicle power transmission device of this embodiment includes the continuously variable transmission 2, the variable speed ratio range setting means 5, and the variable speed ratio range setting means 5. The torque ratio control means 140 controls the torque ratio of 2.

In this embodiment, the continuously variable transmission 2 is a V-belt type continuously variable transmission 21. The V-belt type continuously variable transmission 21 includes an input shaft 22 and an output shaft 2 parallel to the input shaft 22.
3. Input of the V-belt type continuously variable transmission 21, which is provided on the input shaft 22 and has a fixed 7 flange 24a integrally molded with the input shaft 22 and a movable 7 flange 24b that slides in the axial direction on the input shaft 22. Human pulley 24 and output shaft 23 as members
A fixed flange 25a provided on the top and integrally formed with the output shaft 23 and a movable 7 that slides on the output shaft 23 in the axial direction.
Consists of an output pulley 25 which is the output member of the V-belt type continuously variable transmission 11121 having a lunge 25b, a manual pulley 24, and a belt 26 stretched between the output pulleys 25, making the torque ratio variable steplessly. Manual pulley 24
And the interval between the V-shaped grooves 24A125A of the output pulley 25 is controlled.

Movement of the shift lever 4 in the manual (M) range is transmitted to the potentiometer 6.
It has a set torque ratio detection device W162 that detects the set torque ratio based on the potential difference between the set torque ratio and the set torque ratio.

10 and 11 are diagrams showing the relationship between the shift lever stroke and the set torque ratio. FIG. 10 shows the case where the set torque ratio is set steplessly with respect to the shift lever stroke, and FIG. shows a case where the set torque ratio is set in multiple stages with respect to the shift lever stroke.

The torque ratio control means 140 includes a set torque ratio detection device @
62 and the output pulley rotation speed (NO) from the output pulley rotation speed detection device 141, and calculates the set rotation speed of the hexa pulley 24; A downshift that compares the set rotational speed and the input pulley rotational speed (Ni) from the heka pulley rotational speed detection device 143, and increases the torque ratio of the V-belt type continuously variable transmission l121 when the rotational speed difference is larger than a predetermined value. When the rotational speed difference is smaller than zero, an upshift signal is output that reduces the torque ratio of the V-belt continuously variable transmission 21, and when the rotational speed difference is greater than zero and less than a predetermined value, the V-belt is a shift signal generator 144 that outputs a signal to maintain the torque ratio of the continuously variable transmission 21 at the current torque ratio (i); and an input coupler 24 in response to the output signal of the shift signal generator 144.
and a pulley controller 145 that controls the interval between the V-shaped grooves 24A and 125A of the output pulley 25.

FIG. 12 shows a second embodiment of the operating device for a vehicle power transmission device according to the present invention.

In this embodiment, the manual setting positions 3 include a parking (P) range, a reverse (R) range, a neutral (N) range, a drive (D) range, and a manual (M) range. A display window 453D is added to the position indicator cover 454.

(The same functions as those in the first embodiment are indicated by the same numbers.) When the shift lever 4 is set to the D range, the control device @ioo of the vehicle power transmission device adjusts the torque ratio of the continuously variable transmission 2 to the vehicle Automatically controlled according to driving conditions.

13 to 16 show a third embodiment of the operating device for a vehicle power transmission device according to the present invention.

In this embodiment, the manual setting position 7 includes a parking (P) range, a reverse (R) range, a neutral (N) range, which is selected by reciprocating the shift lever 4, and a rotary position setting knob (hereinafter abbreviated as the knob). It consists of a manual (M) range in which the torque ratio can be changed from the HtOh (H) position to the Low (L) position, which is selected by the rotational movement of No. 8.

Further, the gear ratio variable range setting means 9 has an anti-slip concave and convex portion 82 formed on the outer periphery 81 and an upper end surface 83 from (H) to (L).
) is provided at the bottom of the knob 8, forming a convex portion 84 formed in a radial direction from the center and a circular convex portion 85 having an opening protruding from the center of the lower end. A circular portion 911, a hollow portion 912 formed at the center of the circular portion 911, and a plurality of concave portions 914A, 914B, 914C, and 914C formed on the outer periphery 913.
1. A terminal mounting portion 915 protrudes radially outward from a part of the outer periphery 913, and is attached to a circumferential portion 916 of the terminal mounting portion 915.
Ground terminal 916A from c.

Input terminal 916B from battery 1 output terminal 916
C protrudes and connects the ground terminal 916A and output terminal 916C.
The carbon plate 911, which is a resistance member passing around the hollow part 912 and connecting the carbon plate 911, is attached inward from the input terminal 916B, and the tips 918a and 918b are bent downward from the vicinity of the hollow part 912. A variable resistance plate 91 to which a second contact point 918, which is a formed elastic member, is attached, and a circular part 922 in which a hollow part 921 is formed.
A conductive plate 92 consisting of a first contact point 923 that protrudes further upward and is formed to contact the carbon plate 917, claw portions 925 and 926 that protrude downward from the outer periphery 924, and a notch in the center of the tip portion 931. is,
Beam 932a for bending, beam 932 for fixing
b is a rotary lever part 933 fixed to the opening of the knob 8;
, an attachment part 935 of the hollow part 921 of the conductive plate 92 provided from the rotation lever part 933 via steps 934a and 934b, and a rotation stopper part 936a and 936b extending in the radial direction from the attachment part 935; and concave portions 937a and 937b are formed on the outer periphery 938 for fixing the claw portions 925 and 926 of the conductive plate 92 by caulking.
A rotary lever 93 consisting of a flange portion 939 and a bottom surface 941
A sliding surface 942 with a 7-lung portion 939 is formed by applying viscous oil to the surface, and a side wall 943 is formed by extending upward from the bottom surface 941, and a rotary lever 93 and a movable lever are attached to the tip of the side wall 943. Concave portion 914A19 of resistance plate 91
14B, 914C, 9140 pawl part 94
5A1945B, 945C, 945D, side wall 9
A body 94 is provided with a stopper part 941 of the rotary lever 93 that protrudes inward at a lower part 946 of the side wall 943, and a body fixing plate 949 that fastens the main body to the vehicle body from the outer periphery 948 of the side wall 943 with screws 949a and washers 949b. It consists of

[Brief explanation of the drawing]

FIG. 1 shows the first operating device of the vehicle power transmission device of the present invention.
A perspective view of the shift lever mechanism according to the embodiment, FIG. 2 is a front view of FIG. 1, FIG. 3 is a side view of FIG. 1, and FIG. 4 is a side view of FIG. 1.
5 is a sectional view of FIG. 1, FIG. 6 is a side view of a detent plate according to the first embodiment of the operating device for a vehicle power transmission device of the present invention, and FIG. 7 is a side view of the detent plate of the present invention. FIG. 8 is a perspective view of the gear ratio variable range setting means according to the first embodiment of the operating device for a vehicle power transmission device of the present invention, and FIG. A side view of a push-pull cable, FIG. 9 is a block diagram of a control device of a vehicle power transmission device, FIGS. 10 and 11 are graphs showing the relationship between shift lever stroke and set torque ratio, and FIG. 12 is a diagram of the present invention. A second operating device for a power transmission device for a vehicle
FIG. 13 is a perspective view of a shift lever mechanism according to an embodiment, FIG. 13 is a front view of a shift lever mechanism according to a third embodiment of an operating device for a vehicle power transmission device of the present invention, and FIG. 14 is a perspective view of a vehicle power transmission device of the present invention. A perspective view of a gear ratio variable range setting means according to a third embodiment of an operating device for a transmission device, FIG. 15 is an assembled view of FIG. 14, and FIG. 16 is a perspective view of the operating device for a vehicle power transmission device of the present invention. FIG. 3 is a perspective view of a conductive plate according to a third embodiment.

Claims (1)

[Scope of Claims] 1) In an operating device for a vehicle power transmission device equipped with a continuously variable transmission capable of continuously changing the gear ratio, a forward movement whose setting position can be arbitrarily set steplessly by human operation is provided. An operating device for a vehicle power transmission device, characterized by having a running position. 2) The forward traveling position is achieved by reciprocating sliding of the operating member.
2. The operating device for a vehicle power transmission device according to claim 1, wherein the setting position can be set arbitrarily. 3) The operating device for a vehicle power transmission device according to claim 1, wherein the forward travel range can be arbitrarily set at a setting position by rotating an operating member.