JPS58134266A - Operation control device for torque converter clutch in semi-automatic speed change gear for car - Google Patents

Abstract

PURPOSE:To connect a direct-coupled clutch at more than an assigned car belocity at a predetermined speed change position by feeding governor pressure to a shaft valve controlled by govenor pressure to interrupt a direct-coupled clutch by means of a manual-operated valve. CONSTITUTION:When a manual-operated valve 5 is shifted to the first speed or the second speed position, govenor pressure is not supplied to a shift valve 17 for interrupting a clutch 14, so that the clutch 14 is disconnected, so as to obtain a smooth departure acceleration utilizing torque amplification by fluid torque transmission. Subsequently, when the manual-operated valve 5 is shifted to the third position, govenor pressure acts upon the shift valve 17, and the shift valve 17 is switched at more than a predetermined car velocity so as to connect the clutch 14. Slip in a torque converter 2 is prevented by such mechanical torque transmission so as to accomplish torque transmission efficiently.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an operation control device for a clutch for a torque converter in a vehicular half-white transmission equipped with a multi-Ik stage @1b system that is selectively established by switching a manually operated valve. Regarding.

Conventionally, the transmission thread could be automatically operated without manual operation or valve switching operations.
@ Equipped with automatic gear shift alt that performs % OK &
A clutch is provided that mechanically connects the input side and the output side of the output torque tl from the engine [torque connoisseur 1K1 used to input it to the transmission. Applicable when the vehicle speed is below the specified speed when the transmission system OII is activated! To prevent slippage at the torque converter when using fluid torque transmission,
Improved fuel efficiency - for example, υJ
It is known from specification iP3262352. In this case, the wrinkle clutch is connected/disconnected by a shift valve that is controlled by the governor pressure according to the vehicle speed, and the oil passage that creates the gas pressure in the shift valve is connected to the shark high speed R (1 ) A control valve that is opened in conjunction with the establishment of the iidllll system is interposed to achieve the above operation.This is a general method that can be used in a semi-automatic transmission to achieve the same operation. In this case, it is desirable to further simplify the S-relative.

In order to satisfy such demands, it is an object of the present invention to provide a device 1 with a simple structure in which the above-mentioned control valve is omitted. A clutch that inputs output torque from an engine to a vehicle semi-automatic transmission equipped with a transmission system via a torque converter, and operates to mechanically connect the input side and output side of the torque converter. f: The clutch is connected and disconnected by a shift valve controlled by the governor pressure according to the vehicle speed, and the clutch is engaged and disconnected at a predetermined operating position via the governor pressure control valve. It is assumed that the mold is made to act on the shift valve.

of An example of implementing the present invention is attached below in Appendix II! I will clarify.

-′:1 111111, (1) is the engine, (2) is the torque converter, (, i) t! Variable gear shown, engine (1)
The output torque from Chen Toru Kunnota (1!) and l
[The transmission is configured to be transmitted to the drive wheels (4) of the vehicle via the transmission (3).

Scissors transmission value) is the percentage (D
Then, between the drive shaft (3a) connected to the torque meter (G2 ) (Equipped with G31 and a reverse transmission system (G8), each forward transmission system (G
l) (G2) (G3) K1 to 3rd gear hydraulic clutches (01) (02) (03) are intervened, and the hydraulic clutches (Of) (02) (03) are connected to the hydraulic clutches (02) (03) as shown in the striped diagram 2. Hydraulic pressure III can be switched freely like rear McJ by switching the manually operated valve.
By supplying pressure oil from (II)] each scissors transmission system (
Gl) (G2) (03) is used in a semi-automatic manner to selectively set KiI.

Reverse transmission system (GK) 7, 2nd speed hydraulic clutch (02) 2
The selector gear (7th figure '□) is used in common with the coupled transmission system (G2) to select these power transmission M (G2) (GR).

On the front side, the right rearward movement is made to stand up by the switching operation, and the cough selector gear (7) is set up by the right rearward movement switching operation, and the cough selector gear (7) is
The switching side was changed to the Therme valve shown in Figure 1).

The configurations of these manually operated valves (6) and servo 5f' (sets) are conventionally known, and to briefly explain them, the scissors manually operated valves (S) are "single", " 2 series”, “3
"Speed", "NJ" for neutral, "R" for reverse, "arm"
Can be freely switched to 6 positions, "P" for king, hydraulic power source (・)
1 oil passage (Ll) leading to servo 9f body) for forward and backward movement and 04) Island 2 third oil passage (Ll) leading to another inlet (
L3), axillary neck l valve (8) fIL output 4 oil pedals (L
4), 1 to 3 hydraulic clutches (01) (02)
(03) for each Federated Bank 5 to 1187 oil route (L5) (
L6) (L7) T111 exchange connection spec<** is done,
In the "1 series" position, m! by Ill m (5g)! 1 oil*(Ll) and collection 2. Oil passage (Ll), line 2# (5b) K, 171, 4 oil passage (L4) and Tsuru 5 oil passage (L5) are connected to each other, and O pressure oil is supplied from oil pressure IN (・) to 1 series. Hydraulic clutch (
01) to establish a 1st speed transmission system (G1), and in the "2nd gear" position, connect it to the shaft @ 2 grooves (5k)! 0IB4 oil path (L4)
Switch and connect the non-6 oil passage (L6) to the 2-way hydraulic clutch (
02) by refueling) 2-speed transmission system (G2) t- is established,
At the triple position, the Ill groove (5a) sends the 7th oil passage (L7) to the fi1141 oil passage (Ll) in addition to the 2nd oil 1 (Ll).
By connecting the pipe and supplying oil to the three-way hydraulic clutch (03), a three-way transmission system (G3) is established, and at the "8" position, the first oil passage (Ll)' is connected to the three-way Fi line (5C). The third oil @ (L3
) to push the servo ff (1) to the right in the drawing, and communicate with the third oil passage (L3) through the valve hole (8a) of the valve (s). $14 oil road (L4)
4th groove (5d) t' through L and Cm6 oil jl (L6) KI
I11! Make sure that the reverse transmission system (GR) is established by refueling the 2nd speed MEE clutch (02) and switching the selector gear (7) to &.

The torque converter (2) is a circular part surrounded by a one-layer input case (9) connected to a crankshaft (11) of the engine (1) and a pump blade wheel on the other side connected to the input case (9). In the gap (b), a turbine wheel (2) connected to the drive shaft (3a) of the transmission (3) and a stator wheel between the two blade wheels OO (b) are provided. 9-
The input side of the motor (l), for example, the input case (9) and the output, is equipped with a clutch C1411 which can be freely connected and disconnected to mechanically connect the turbine. Fluid torque transmission by circulation of the same 5flL body between the impeller oIDQIQ1 and the connection operation of the axillary tarasute
is configured to provide am-like torque transmission via the wrinkle clutch Q141.

Various types of clutches are used for this clutch, such as a multi-disc clutch, a one-way friction clutch, and a one-way tarlatch. Turbine wheel - 1
The amount of oil between the clutch fL (14i) and the input case (9J) is increased by the amount of oil between the clutch plate (14m) and the input case (9J). 1FllllIlr shape 1゛ separated from Bei,
According to the oil discharged from the oil chamber (2), armpit clutch 1 [(14
a) is suppressed by the circular pressure of the circle S gap (b), and the input case (9) K is frictionally engaged with the connection shape Ii so that it is changed, and responds to the oil supply and discharge to and from the scissor oil 1j1m and the vehicle speed. The shift valve is controlled by the governor pressure from the gas valve.

Wrinkle shift) 5? U is a line 8 oil path (L83 is connected to lI9 oil path (L9) that leads to oil chamber 01 and connects to the cough oil chamber Clutch disengagement position II (position shown in the diagram), which refuels inside the clutch, and *lI
9 oil passage (L9) can be freely switched to the clutch connection position where it connects to the air fighting boat (6) and drains oil from the scissor oil f1. ) to Iiii
! In one stroke, the right clutch lever is pressed to the positive position, and at a predetermined vehicle speed or higher, the original shift valve (b) is switched to the clutch engagement position, and the clutch engagement operation is applied.

Furthermore, 1IIIIII! #5tnii sky 11 (II
The 101st 'lii bribe (LIO) with K led to the 8th oil road (1,
8) Pressure through t? 'll is supplied and the receiver 11 (Ll
The internal pressure of the curtain p scissors 9II (2) is maintained at a relatively high pressure by the check valve interposed in the oil drain path (LD) of the
), ・: 1.5, and the cutting position is oil vine (6) 1 through the g! The gap Ql-s is refueled, and the 10th oil path (LIO
) to the 11th oil passage (Ll
l) Drainage of oil through 1 was carried out, and the internal pressure of the 22 gap (2) was maintained at a relatively low pressure.

In addition, the shift 9f (b) is applied in response to the throttle valve M& of the engine (1) in opposition to the throttle pressure before throttle valve pressure, and the throttle l@ degree is applied to the shift 9f (b). Due to this increase, switching to the clutch engagement position is performed faster.

The control company for the shift valve described above is not comparable to the conventional type, but according to the present invention, the pressure is controlled by the control ff (&
)' so that it acts on the cough shift valve tilt at its predetermined operating position 11, e.g. the "3rd gear" position, through the 3 continuous transmission system (G
3) It was made possible to obtain clutch connection operation at a predetermined single chain or higher when establishing the armpit transmission system (G3) without using another control valve that is installed in conjunction with the establishment of item 3).
・This will be explained in more detail.The 12th oil line (L12) leading to the gas valve and the governor pressure system (□1113 oil line (L13)) to the shift valve are connected to the manually operated valve. -) through the 5th fill (5e) only in its "triple" position 11! I tried to stir the strings.

In addition, in the "double" position, the land (5f) between II 5 i#I (5e) and the third groove (5c) described above is located between each port leading to both oil passages (L12) (L133). In addition, at the "-1st" position, the land (5f) blocks the boat t'' leading to #IJ13 oil 11 (Ll3) and connects both oil passages (L12
In Figure 3, the wheel is a control valve that forcibly returns the wrinkle extension to the cut position by the effect of Ganosena pressure on the shift valve operation when the throttle is returned to near zero pressure. □ Disconnect the clutch (b) that is repeatedly acting up and go to the engine (1) "II!" ”l as position
When running in one continuous transmission l1il system (G1), or
When driving in the 2-way position, the governor pressure is cut off from the shift valve (B), and the clutch O4Fi is in a disconnected state, and the torque amplification by the 2-way body torque transmission is utilized. Smooth over-acceleration is obtained, and then when the scissor valve (5) is set to the "3rd gear" position and the vehicle is driven in 3rd gear, the pressure is shifted through the scissor valve (5). ) 5'P is applied, and when the pressure reaches a certain level, the clutch changes to 1k and 1IIIVC by switching the shift valve, and mechanical torque transmission causes the clutch to slip in the dorsal gear. is prevented, resulting in efficient torque transmission.

In this way, according to the present invention, the governor pressure is applied to the shift valve through the shift valve by switching the shift operation valve of the semi-automatic transmission to the predetermined operation position, and the predetermined pressure is applied when a predetermined transmission system is established. 1jkll of the clutch at vehicle speed or higher! This has the advantage of simplifying the structure without requiring a separate @O control valve in conjunction with the establishment of the wl@- system. .

[Brief explanation of drawings]

Figure 1 shows an SE of an example of a semi-automatic transmission to which this JmWA-equipment is applied, and Figure 2 shows an example of an example of the device of the present invention. (1)...Engine, (2)...Torno converter, (3)...Transmission, (S)...Controversy" Fusaku valve, 1...Clutch, Kan...Shirato valve, (Gl)
(G2) (G3)...Den I + thread.

Claims (1)

[Claims] Multiple RO &
- System preparation fIL]! The output torque from the engine is inputted to the hydraulic transformer via the torque converter, and the input side and output side of the engine are connected to the torque converter. The armpit clutch is connected and disconnected by a shift valve controlled by a gas pressure according to the vehicle speed.
An operation control device for a clutch for a torque converter in a semi-automatic transmission for a vehicle, characterized in that the clutch for a torque converter in a semi-automatic transmission for a vehicle is actuated through the shift valve at the operating position.