JPS6188058A - Automatic speed change gear with automatic clutch - Google Patents

Abstract

PURPOSE:To improve the safety of a car by inputting car running conditions such as a steering angle, lateral acceleration and so on to forbid speed change operation of an automatic speed change gear when the car is in the unstable state. CONSTITUTION:On judging whether a speed change forbid signal is output or not, if not, a throttle valve in an engine is controlled to engage a clutch. Thus, speed change operation is completed, and then feedbacked to a step 702. When a speed change forbid signal is output, the speed change step is switched to the speed change step position before speed change, and then a throttle valve in the engine E is controlled to engage the clutch, so that the safety of a car is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic transmission with an automatic clutch using an automatic transmission.

(Prior Art) Conventionally, an automatic transmission with an automatic clutch has an automatic transmission that automatically changes gears while power is cut off from the engine using an automatic clutch, and a vehicle driving condition that is input to control the speed change of the automatic transmission. In an automatic transmission with an automatic clutch, which consists of an electronic I control device that outputs
It consists of an electronic control device that inputs vehicle driving conditions such as Ja, and outputs the output to control the speed change of the automatic transmission, and performs speed change control based on a preset speed change diagram.

[Problems to be solved by the invention] However, in an automatic transmission equipped with an automatic clutch that releases the clutch and cuts off the engine output when performing gear change control, the engine torque output is cut off while driving. Rapid torque fluctuations occur depending on the condition and the engagement and disengagement of the clutch. If this happens when the vehicle is unstable, such as when making a sharp turn or slipping, the vehicle becomes even more unstable.

An object of the present invention is to provide an automatic transmission with an automatic clutch that can improve vehicle safety by inputting vehicle running conditions and outputting an output to prohibit shifting of the automatic transmission when the vehicle is unstable.

[Means for Solving the Problems] A first invention of an automatic transmission with an automatic clutch of the present invention provides an automatic clutch, an automatic transmission that automatically changes gears while power is cut off from an engine by the automatic clutch, and a vehicle running. In an automatic transmission with an automatic clutch, the electronic control device is configured to input a condition and output an output to control the speed change of the automatic transmission. In the case of a second aspect of the present invention, the electronic control device outputs a shift prohibition signal to the automatic transmission to prohibit the shift of the automatic transmission.
A vehicle turning signal is input, and when the vehicle is turning, a shift prohibition signal is output to the automatic transmission, and the automatic transmission is inhibited from shifting, and a shift prohibition signal is input during the shift operation. In this case, the automatic transmission is configured to output an output to the automatic transmission so as to shift the automatic transmission to a gear position before shifting.

[Operations and Effects of the Invention] With the above-described configuration, the automatic transmission with an automatic clutch of the present invention inputs vehicle running conditions such as steering angle and lateral acceleration, and prevents the automatic transmission from shifting when the vehicle is unstable. , it has the effect of improving the safety of the vehicle.

[Embodiment 1] An automatic transmission with an automatic clutch according to the present invention will be explained based on an embodiment shown in the drawings.

FIG. 1 shows this embodiment incorporated into a front engine, front drive type automatic transmission using a fluid type fluid coupling.

This automobile transmission includes a transmission vJ device 100. It consists of a constantly meshing gear type automatic transmission 200 for five forward speeds, one reverse speed, a differential mechanism 250, and a transmission case 300 housing these.

In this embodiment, the transmission device 1100 includes a freewheel coupling (hereinafter referred to as the coupling) 110, a power cutoff multi-plate clutch (hereinafter referred to as the clutch) 130 provided on the inside thereof, and an outer periphery of the coupling 110. A centrifugal direct-coupling clutch 150 provided on the engine (as shown, hereinafter referred to as the material) and an oil pump 17 provided between the input member and the output member of the coupling 110
0 and a servo mechanism 190 for disengaging and engaging the clutch 130.

The coupling 110 includes a front cover 111 connected to the input shaft 101 (shown in FIG. 2) of the transmission device 100 connected to the crankshaft of the engine, and an annular plate-shaped part welded to the front cover 111 at the outer periphery. rear cover 11
0A1 includes a pump blade 113 disposed around the inner wall of the rear cover 11OA, a turbine blade 114 disposed opposite to the pump blade 113, and a turbine shell 115 holding the turbine blade 114. The tip of the front cover 111 (outer side (not shown), hereinafter referred to as the left side) where the gear transmission 200 is located is the drive shaft 106 of the oil pump 170, and the middle part is the drive shaft 106 of the oil pump 110. A central shaft 108 serving as an inner shaft member (center piece) 107 is supported movably in 13 directions and rotational directions. Further, a cylindrical portion 111B on which a frictional engagement surface 111A of the direct coupling clutch 150 is formed and is perpendicular to the shaft is connected to the outer peripheral portion of the inner wall of the front cover 111.

The clutch 130 has an inner spline 133 formed on its inner periphery, and a hub-shaped portion 116 of a turbine shell 115 is welded to its outer periphery at the left end in the drawing, and a damper drive plate 158B, which is an output member of the direct coupling clutch 150, is slidably attached to the clutch 130. A clutch drum 134 to which a centering guide sleeve 144 is press-fitted, an inner periphery fixed to an oil pump body 170A, and an outer periphery a damper drive plate 158B and a damper driven plate 15.
A damper spring 157 is provided between the damper spring 157 and the damper spring 157.
The damper drive plate 158B is attached to the front damper plate 158C holding the front damper plate 158C and a friction engager 150A on the outer periphery, and supports the pressing force of the diaphragm spring 197 on the left side surface of the central part in the figure.
The right side is rotatably supported by the front cover 111 while transmitting the pressing force of the diaphragm spring 197.
A damper driven plate 158A, which is in contact with a bearing race 161 of a thrust bearing 160 attached to the front cover 111 and fixed so that the clutch drum 134 is perpendicular to the damper driven plate 158A, and a spline are attached to the output shaft 103 of the transmission device 100. Fitted hub part 1
35. Inner spline 1 of the clutch drum 134
33 and a clutch disk wheel 139 consisting of a clutch hub portion 131 having an outer circumferential spline 136 formed at a corresponding position, and a disk portion 138 directly connecting the hub portion 135 and the clutch hub portion 137; A plurality of clutch plates 141 combined together, and an inner periphery of the clutch disc wheel 1
The clutch disk 143 is spline-fitted to the clutch hub portion 137 of No. 39, and consists of clutch discs 143 which are alternately stacked with the clutch plates 141.

The direct coupling clutch 150 includes a friction engagement surface 111A formed on the inner peripheral surface of the front cover 111 and a friction engagement element 150A supported by a damper drive plate 158B.

The oil pump 170 is an internal gear pump in this embodiment, and is provided inside the clutch disc wheel 139 between the oil pump cover 177 and the disc portion 138 of the clutch disc wheel 139. This oil pump 170 has an outer circumferential portion d5 and is fixed to the oil pump cover 177, and an inner circumferential portion 1) is loosely fitted to the small diameter end portion 103B of the output shaft 103 of the rJ transmission device 100 via an oil seal 175; Oil pump body 110A abuts against disk portion 138 of clutch disk wheel 139 via thrust bearing 116
, an internal gear 112 rotatably fitted into a gear room provided next to the engine of the oil pump body 170A, an external gear 1γ1 spline-fitted to the tip of the central shaft 108, and an output shaft 103. It consists of an inlet port 173 connected to an oil passage 103A formed at the center of the damper driven plate 158A, and a discharge port 174 connected between the damper driven plate 158A and the front cover 111.

The servo mechanism 190 of the clutch 130 is a clutch actuator 2 operated by a clutch pedal provided at the driver's seat or by automatic supply and discharge of intake pipe negative pressure or oil pressure.
a release rod 191 connected to the release rod 191, a release fork 192 rotated around a fulcrum 193 by the release rod 191, a bearing 195 attached to the seven flange 194 that abuts the release fork 192, and a bearing 195 attached to the bearing 195. A sliding sleeve 196 fitted inside and an inner peripheral edge of the sliding sleeve 19
Diaphragm spring 19 locked to the right end of 6
7, which is engaged with the outer peripheral edge of the diaphragm spring 197 and is connected to the clutch 1 through a thrust bearing 198.
30, and the clutch 130 is automatically released and engaged.

The gear transmission i 200 has a known configuration, and the transmission HH
The output shaft 103 of ioo is an input shaft, and the output shaft 2 is parallel to the input shaft.
01, and the input shaft 103 has a first gear and a second gear.
Drive gears 213 for speed, third speed, fourth speed, and fifth speed
．． 214, 215, 216 and 217 are integrally provided, and the output shaft 201 has a first speed, a second speed, a third speed, a fourth speed and Fifth speed driven gears 221, 222, 223, 224 and 225 are rotatably fitted.

Then, the two adjacent driven gears 221 and 222 are connected to the output shaft 2 by the first speed and second speed synchronizers 202.
01, the drive gears 215 and 216 are similarly selectively coupled to the input shaft 103 with the third and fourth gear synchronizers @203, and the drive gear 217 is similarly coupled with the fifth gear synchronizer @203. Input shaft 103 with 204
A driven gear 228 is further provided which meshes with the reverse drive gear 218 via an idler gear (not shown).

In addition, an output gear 229 is provided in the clutch drive section of the output shaft 201, and this meshes with the ring gear 251 of the differential mechanism 250.
Power is transmitted from the ring gear 251 to the side gear 2 via the case 252, the pinion shaft 253, and the pinion 254.
55 and further transmitted to the drive wheels via the axle 256.

This transmission device 100 operates as follows.

The servo mechanism 190 of the clutch 130 is controlled by the electronic control device 6
When the release rod 191 is automatically operated to the left in the figure in accordance with the command, the release fork 192 rotates to the left around the fulcrum 193 and displaces the sliding sleeve 196 toward the engine via the bearing 195. As a result, the sliding sleeve 196 bulges the center of the diaphragm spring 191 toward the engine.
A pressing ring 199 connected to the outer periphery of the diaphragm spring 197 is displaced to the left in the drawing. This action releases the clutch 130. In this state, power is cut off by clutch 130, so that automatic transmission 200 can perform a gear change operation.

When the release rod 191 automatically moves to the right in the drawing, the sliding sleeve 196 is displaced to the left in the drawing by the restoring force of the diaphragm spring 197, the suppression ring 199 is pressed against the engine, and the clutch 130 is engaged. An input shaft 101 and an output shaft 103 of the transmission device 100 are connected via a coupling 110.

In this embodiment, a 7 fluid coupling is used for the fluid transmission device, but a 1 to 1 lux converter or the like may be used. It goes without saying that it can also be used in other fluid transmission devices.

As shown in FIG. 2, the automatic clutch-equipped automatic transmission m1 of this embodiment includes a vehicle engine E, an input shaft 101 connected to a crankshaft (not shown) of the engine E, and an automatic clutch to cut off power from the engine E. , a clutch 130 of a transmission device 100 that removably connects the output shaft 103, which is an input shaft of an automatic gear shifting TA200, which is automatically shifted, a vehicle speed sensor 501 that detects vehicle speed, and a throttle opening sensor that detects a throttle opening. 502, gear position sensor 503a, 50 for detecting the gear position of automatic transmission 200;
3b, a select lever setting position sensor 504 that detects the setting position of a select lever having stop (P), reverse (N), drive (D), second (2), and low (L);
A clutch displacement sensor 505 detects the displacement of the clutch 130 based on the displacement ω of the release rod 191 of the clutch actuator 2, and a throttle displacement sensor 506 detects the displacement ω of the throttle valve 33 provided in the intake pipe 31 of the engine E. , an actuator 24 that receives an electric signal from a steering angle sensor 507 that detects the angle at which the steering wheel 4 is turned, and controls the throttle valve 33, and an electronic control device 6 that controls the seven gear units 51a and 51b of the speed change control device 5. Become.

The operation of the electronic control device 6 of this embodiment will be explained based on the flowchart shown in FIG.

Turn on the starter key and start engine E (7
01) From each sensor, vehicle speed, throttle opening,
Input the gear position, select lever position, clutch displacement amount, and steering angle, and create a graph showing the range of the gear change prohibition signal set in advance according to each detected value (Figure 4 A: jii large steering angle, B: gear shift 702), then determine whether or not a shift prohibition signal is being output (703), when outputting (703).
702).

When the shift prohibition signal is not output, the displacement amount of the throttle valve 33 in the engine E is controlled and the clutch 130 is released (704), and then the gear stage is switched to a predetermined gear stage (705). Next, it is determined whether the shift prohibition signal is being outputted again (706), and if it is not being output, the clutch 130 is engaged while controlling the throttle valve 33 in the engine E (707), thereby ending the shift. 708), then (702
), the gear is switched to the pre-shift gear position (709), and the clutch 130 is engaged while controlling the throttle valve 33 in the engine E. (710). After that (7
Return to 02).

This embodiment has the following effects.

By changing the predetermined value of the steering angle that prohibits shifting of the automatic transmission according to the vehicle speed, safe steering operation can be performed according to the vehicle speed.

In this embodiment, it is checked once (706
), but it is also possible to constantly detect a shift prohibition signal during gear change and control to switch to the previous gear when the shift prohibition signal is output.

Further, the same control can be performed even if the turning of the vehicle is detected using lateral acceleration or the like instead of the steering angle.

[Brief explanation of drawings]

Fig. 1 is a sectional view of an automatic transmission equipped with a constant mesh gear transmission, Fig. 2 is a block diagram of an automatic transmission with automatic clutch of the present invention, and Fig. 3 is an automatic transmission with automatic clutch of the present invention. FIG. 4 is a graph showing the range of the shift prohibition signal applied to the automatic transmission with an automatic clutch of the present invention. In the diagram: 1. Automatic transmission with automatic clutch 4. Handle 5. Gear shift control device 6. Electronic control device 10
0...Transmission device f 20G...Constant mesh gear type automatic transmission 501...Vehicle speed sensor 502...Throttle distance r! 1t7 sensor 503a, 503b... Gear position sensor 504... Select lever setting position sensor 505... Clutch displacement sensor 507... Steering angle sensor E... Engine

Claims (1)

[Scope of Claims] 1) an automatic clutch, an automatic transmission that automatically changes gears while power from the engine is cut off by the automatic clutch, and an output that inputs vehicle running conditions and controls the speed change of the automatic transmission. In an automatic transmission with an automatic clutch comprising an electronic control device, the electronic control device inputs a turning signal of the vehicle, and outputs a signal prohibiting shifting to the automatic transmission when the vehicle is turning; An automatic transmission with an automatic clutch, characterized in that shifting of the automatic transmission is prohibited. 2) An automatic clutch, an automatic transmission that automatically changes gears while power from the engine is cut off by the automatic clutch, and an electronic control device that inputs vehicle running conditions and outputs a command to control the speed change of the automatic transmission. In the automatic transmission with an automatic clutch, the electronic control device inputs a turning signal of the vehicle, and when the vehicle is turning, outputs a shift prohibition signal to the automatic transmission, and controls the automatic transmission. An automatic transmission with an automatic clutch, characterized in that when a gear change is prohibited and a gear change prohibition signal is input during a gear change operation, an output is output to the automatic transmission to shift the automatic transmission to the gear position before the gear change. . 3) Claim 1 or 2, wherein the turning signal of the vehicle is a steering angle or a lateral acceleration.
Automatic transmission with automatic clutch as described in section. 4) The automatic clutch equipped automatic according to claim 3, wherein the electronic control device changes a predetermined value of the steering angle or lateral acceleration that prohibits shifting of the automatic transmission depending on the vehicle speed. transmission.