KR20140075483A - Apparatus for noise reduction of dual clutch transmission and method thereof - Google Patents

Abstract

Disclosed is a noise reduction method for an automatic manual transmission in which an actuator is controlled in multiple stages to prevent noise from being generated when a select for a next shift is executed.
According to another embodiment of the present invention, there is provided a driving method of a vehicle, comprising: determining whether driving information of a vehicle is required to be selected for a next shift; When the selection is requested, actuating the actuator with the first duty for the first time to perform the selection; Activating the actuator with the second duty for a second time that is set when the set first time elapses; Determining completion of the selection when the set second time has elapsed, and turning off the actuator.

Description

Technical Field [0001] The present invention relates to a noise reduction apparatus and method for an automatic transmission,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic manual transmission, and more particularly, to an apparatus and method for reducing noise in an automatic manual transmission in which an actuator is controlled in a multi-stage manner to perform a select operation for a next shift.

2. Description of the Related Art A hybrid automatic transmission (DCT) applied to a vehicle includes two clutches in a transmission to selectively transmit power input from an engine to any one of input shafts using two clutches, So that the power is output by adjusting the speed ratio.

An automatic manual transmission is applied to compactly realize a high-speed transmission having five or more stages. The first clutch interrupts the power connection between the engine and the hole means (1, 3, 5, and 7), and the second clutch The power connection of the means (2, 4, 6, R-stage) is interrupted.

The automatic manual transmission includes a clutch for coupling the power of the engine to any one of the first and second clutches, transmitting the power of the gear ratio determined by the gear selection to the differential, releasing the clutch in the engaged state, So as to prevent upsetting of the power transmission from occurring.

The automatic manual transmission performs an operation of using an actuator to select a gear in advance for coupling the gear for the next shift.

The automatic manual transmission selects a gear by using an on / off solenoid valve. In the course of selecting the solenoid valve by the on / off operation of the solenoid valve, the select lever contacts the rubber pad mounted for the detent, Is generated.

Therefore, it is possible to provide the driver with an uncomfortable feeling in the running of the vehicle, and the commerciality of the vehicle can be lowered.

Published Japanese Patent Application No. 10-2011-0109022 (June 10, 2011) Japanese Patent Application Laid-Open No. 10-2011-0011250 (Feb.

An object of the present invention is to provide a noise reduction method of an automatic manual transmission in which an actuator is controlled in multiple stages when a selection for a next shift is executed to prevent noise from being generated.

According to an embodiment of the present invention, there is provided an automatic manual transmission, comprising: a vehicle information detecting unit that detects vehicle information including a vehicle speed, a displacement of an accelerator pedal, and an engine speed; A control unit for analyzing the vehicle information to determine a target speed change stage and controlling a select operation for a next shift change; And an actuator for performing a selection for a next shift according to a control signal of the control unit, wherein the control unit controls the actuator in a stepwise manner in the execution of the selection for the next shift, thereby reducing noise of the automatic lever of the automatic lever A reduction device is provided.

According to another embodiment of the present invention, there is provided a driving method of a vehicle, comprising: determining whether driving information of a vehicle is required to be selected for a next shift; When the selection is requested, actuating the actuator with the first duty for the first time to perform the selection; Activating the actuator with the second duty for a second time that is set when the set first time elapses; Determining completion of the selection when the set second time has elapsed, and turning off the actuator, and a method for reducing the noise of the automatic manual transmission.

The select duty for operating the actuator may be controlled in two or more stages.

As described above, according to the present invention, noise is not generated by controlling the actuator for selecting in the automatic manual transmission in multiple stages, thereby improving the commerciality of the vehicle.

Particularly, it is possible to provide an improvement in the commerciality because no shift noise is generated in the EV mode in which the hybrid vehicle travels only by the motor without operating the engine.

1 is a schematic view of a noise reducing apparatus of an automatic manual transmission according to an embodiment of the present invention.
2 is a flowchart illustrating a control procedure of an automatic manual transmission according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention.

The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are given the same reference numerals throughout the specification.

In addition, since the components shown in the drawings are arbitrarily shown for convenience of explanation, the present invention is not necessarily limited to those shown in the drawings.

1 is a view illustrating an apparatus for reducing noise of an automatic manual transmission according to an embodiment of the present invention.

Referring to FIG. 1, the present invention includes a vehicle information detecting unit 110, a controller 120, an actuator 130, a select lever 140, and a control shaft 150.

The vehicle information detecting unit 110 detects various state information of the vehicle including the vehicle speed, the displacement of the accelerator pedal, the number of revolutions of the engine, and the like, and provides the controller 120 with information about the state information.

 The control unit 120 determines the target shift stage for the next shift by analyzing the information provided by the vehicle information detector 110 while the shift stage is being engaged, and then actuates the actuator 130, Is selected in advance.

The control unit 120 controls the actuator in a multi-step manner in a process of operating the actuator 130 to select the next gear stage to engage the next gear stage. In the select operation, the select lever 140 is operated to rotate the rubber Minimize the force of contact with the pad to avoid noise.

The control unit 120 may set a stepwise control signal for activating the actuator 130 to at least two or more stages.

The actuator 130 may include an on / off solenoid valve, and operates according to a stepwise control signal applied from the controller 120 to operate the select lever 140.

The select lever 140 is operated by the operation of the actuator 130 to move the control shaft vertically and vertically so that the select lever 140 can be selected for the next shift.

The operation of the present invention including the functions as described above is as follows.

The traveling information detecting unit 110 detects the state information including the running vehicle speed, the displacement of the accelerator pedal, the engine speed, and the like in a state where the vehicle equipped with the automatic manual transmission according to the present invention is traveling, (S101).

The control unit 120 analyzes the information provided by the vehicle information detecting unit 110 in a driving state by combining an arbitrary gear position to determine whether selection for the next gear change is required (S102).

If the selection for the next shift is requested in step S102, the control unit 120 determines the target speed change stage and then activates the actuator 130 with the first duty (S103), counts the elapsed time t1, (S104). ≪ / RTI >

The controller 120 performs current control when the actuator 130 is configured as an on / off solenoid valve, and the first duty executes low current control to smoothly actuate the actuator 130. [

If the elapsed time t1 of the first duty has exceeded the preset reference time t in step S104, the controller 120 activates the second duty actuator 130 (S105) and counts the elapsed time t2 It is determined whether the set reference time t has elapsed (S106).

If the elapsed time t2 of the second duty exceeds the set reference time t at S106, the controller 130 determines that the selection for the next shift has been completed and ends the select operation (S107)

Accordingly, in the process of selecting the actuator 130, the actuator is controlled in a multi-stage so that the select lever 140 is minimized in contact with the rubber pad mounted to serve as a detent, and noise is not generated.

The control unit 120 may set a stepwise control signal for activating the actuator 130 to at least two or more stages.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood that various modifications and changes may be made without departing from the scope of the appended claims.

110: operation information detecting unit 120:
130: Actuator 140: Select lever

Claims (3)

In an automated manual transmission,
A vehicle information detecting section for detecting vehicle information including a vehicle speed, a displacement of an accelerator pedal, and an engine speed;
A control unit for analyzing the vehicle information to determine a target speed change stage and controlling a select operation for a next shift change;
An actuator for performing a selection for a next shift according to a control signal of the control unit;
Lt; / RTI >
Wherein the control unit controls the actuator step by step in the execution of the selection for the next shift, thereby reducing the collision noise of the select lever. Determining whether the driving information of the vehicle is required to be selected for the next shift;
Performing a select operation by operating an actuator with a first duty for a first predetermined time when the select is requested;
Performing a select operation by operating an actuator with a second duty for a second time set when the set first time elapses;
Determining completion of the selection when the set second time elapses, and turning off the actuator;
And a noise reduction method of an automatic manual transmission. 3. The method of claim 2,
Wherein the select duty for operating the actuator is controlled in two or more stages in a multi-stage manner.

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