KR20000025819A - Active handle for vehicle simulation drive game - Google Patents

Abstract

PURPOSE: An active handle is provided to reduce a production cost and to have an excellent construction by configuring simply a power transfer mechanism for providing a handling load. CONSTITUTION: In an active handle, a handle shaft(13) is supported to a base(10) so as to be rotated and has a handle(12) joined to one end. A detection unit(32) is joined to the other end of the handle shaft, and detects a rotation direction of the handle shaft. A motor(16) is supported to the base, and has a rotation shaft located in parallel with the handle shaft. An endless belt is joined with a drive poly(18) and a driven poly(20). A control unit(40) controls so as to drive the motor in an opposed direction to the rotation direction of the handle in response to a detection signal of the detection unit.

Description

Active steering wheel for car simulation games

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an active steering wheel for a car simulation driving game, and more particularly, to an active steering wheel that can give a gamer a sense of actually driving a car by adding a load applied to a steering wheel according to a steering wheel rotation angle.

In the car simulation driving game device, the game driving device displays a road driving situation on a monitor and the game player can perform a simulation driving by operating a steering wheel while watching the displayed road driving environment. If the steering wheel is operated while the vehicle is actually driving, the wheels on the road will act in the opposite direction to the rotational direction of the steering wheel by the frictional force. Therefore, the steering wheel operator will be able to detect the load acting in the opposite direction to the turning direction. do.

However, since there is no wheel in the simulation driving game device, such a handling load cannot be detected when the steering wheel is operated. Therefore, the game player can not sense the handling load that can be felt when driving a real car, there is a problem that the interest of the game is halved due to the lack of realism.

In consideration of such a problem, an active handle for a game that detects a handling load when operating a handle has been researched and developed.

U.S. Patent 5,547,383 discloses an active handle. The patented technology detects the rotational direction and rotational speed of the handle with a detection sensor, drives the rotational motor in the opposite direction of the detected rotational direction, and transmits the rotational force of the rotational motor to the handle shaft through a two-stage belt power transmission mechanism and powder clutch. This allows the natural handling load to be detected by the slip of the transfer mechanism.

However, the patent can facilitate the design of the motor control, but the two-stage belt power transmission mechanism, the powder clutch structure, the mechanical structure such as the handle rotation direction detection sensor is complicated, the assembly is inferior due to the increase in the number of parts, rather the manufacturing cost There was a problem with this rising.

It is an object of the present invention to provide an active handle for a car simulation driving game which can be easily assembled and has a low cost in order to solve the problems of the prior art.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing the configuration of an active handle device of a car simulation driving game according to the present invention.

2 is an exploded perspective view of the active handle device of FIG.

3 is a front view of the active handle device of FIG.

4 is a side view of the active handle device of FIG.

5 is a motor driving circuit diagram according to the present invention.

6 is a graph showing a change in the rotation angle and the variable resistance value of the handle and a change in the motor driving current.

<Description of the symbols for the main parts of the drawings>

10: base 12; handle

14; Handle Shaft 16: Motor

18: driving pulley 20: driven pulley

22; Timing belt 24: fixing member

26: first bearing 28: second bearing

30: cancer 32: detection means

33: fixing piece 34: fixing member

36: stopper 38: fastening means

40: control means 42: analog to digital converter

44: microprocessor 46: decoder

48: drive unit

In order to achieve the above object of the present invention, the active handle device of the present invention is rotatably supported on a base and coupled to the handle shaft at one end, and coupled to the other end of the handle shaft for detecting the rotational direction of the handle shaft. Means, a motor having a rotational shaft supported on the base and positioned parallel to the handle shaft, a drive pulley coupled to the rotation shaft of the motor, a driven pulley fixed to the handle shaft, an endless belt coupled to the drive pulley and the driven pulley, And control means for driving control of the motor in a direction opposite to the rotation direction of the handle in response to the detection signal of the detection means.

Hereinafter, with reference to the accompanying drawings, it will be described in detail the present invention through an embodiment of the present invention.

1 shows the configuration of an active handle device of a car simulation driving game according to the present invention, FIG. 2 shows an exploded perspective view of the active handle device of FIG. 1, FIG. 3 is a front view of the active handle device of FIG. 1, and FIG. 4. Shows a side view of the active handle device of FIG. Referring to the drawings, the handle device of the present invention is the base 10, the handle 12, the handle shaft 14, the motor 16, the drive pulley 18, driven pulley 20, timing belt 22 , A motor fixing member 24, a first bearing 26, a second bearing 28, an arm 30, and a detection means 32.

The base 10 includes a front plate, a back plate, and a side plate, and the front plate is formed with a groove in which the handle shaft is located and a rectangular hole in which the rotation shaft of the motor is located. The back plate is provided with a fixing member 34 to which the first and second bearings 26 and 28 for rotatably supporting the handle shaft are respectively fixed, and a long hole is formed at the center of the fixing member 34 and the A stopper 36 is attached to the exposed back region. The handle shaft 14 is rotatably arranged in the first and second bearings 26, 28, and the arm 30 on the handle shaft 14 between the first bearing 26 and the second bearing 28. The driven pulley 20 is fixed on the first bearing 26 and the handle shaft 14 in front of the front plate.

Arm 30 is rotated during the rotation of the handle shaft 14 is stopped by the stopper 36 serves to limit the handle shaft 14 to rotate only within a certain angle. An elastic member 31 is installed on the stopper contact surface of the arm 30 to suppress the soft feeling and noise generation during contact.

The handle 12 is screwed to the end of the handle shaft 14 protruding in the front plate direction. A thread is formed on the rear handle shaft 14 of the second bearing 28 and the fastening means 38 is screwed to the thread to fix the handle shaft 14 to the bearing. The rear end of the handle shaft 14 is coupled to the detection means 32, for example, the variable terminal rotary shaft of the variable resistor to rotate in conjunction with the handle shaft. The fixed end of the variable resistor is fixed to the fixing piece 33, and the fixing piece 33 is inserted and supported by one end into a groove formed in the rear end of the back plate.

Therefore, since the fixed end of the variable resistor is supported by the fixing piece 33, it is fixed without being rotated at the time of rotation of the variable end. The variable resistor 32 has an initial resistance value at the initial position of the handle shaft, and the resistance value is changed according to the rotation angle at the clockwise or counterclockwise rotation. Therefore, the rotation angle and direction of the handle shaft are detected as resistance values.

The motor 16 is fixed to the fixing member 24 by a six-phase DC motor, four long holes formed in the fixing member 24 are inserted into the screw and coupled to the base 10. An interval adjusting screw 25 is coupled to one end of the fixing member 24 so that the rotation shaft of the motor 16 can adjust the interval with the handle shaft 14. That is, when the space adjusting screw 25 is tightened, the fixing member 24 is moved away from the handle shaft 14, and when the screw is loosened, the fixing member 24 is moved closer to the handle shaft 14. The drive pulley 18 is fixed to the rotation shaft of the motor 16. Gear pulleys are formed in the driving pulley 18 and the driven pulley 20, respectively, and the driving pulley 18 and the driven pulley 20 are coupled to each other by the timing belt 22 so that power is driven from the driving pulley 18. The pulley 20 is delivered.

Therefore, in the motor, since the rotational force is generated in a direction opposite to the rotational direction of the handle, the rotational force of the handle shaft is transmitted to the driven pulley 20, the timing belt 22, and the driving pulley 18, and the rotor of the motor is driven by the driving pulley ( 18) rotates in the direction of rotation, but the current applied to the rotor flows so that the rotor rotates in the opposite direction, so that the rotor receives a reaction force. This reaction force is driven by the driving pulley 18, the timing belt 22, and the driven force. Since it is applied to the handle shaft 14 and the handle 12 via the pulley 20, the driver feels the load in the direction opposite to the direction to rotate.

5 shows a motor driving circuit diagram according to the present invention. 6 shows the change in the resistance value and the motor drive current value with respect to the rotation angle.

The variable resistor 32 corresponds to the direction in which the motor vehicle goes straight when it has an initial value R0, that is, an intermediate value. When the resistance value is reduced to the minimum value Rmin, it is turned counterclockwise or left. On the contrary, when the resistance value is increased to the maximum value Rmax, it is detected that it is turned clockwise or right. The control means 40 is composed of an analog-to-digital converter 42, a microprocessor 44, a decoder 46, and a motor driver 48. The analog-to-digital converter 42 converts the output voltage of the variable resistor into a 4-bit digital signal and transmits it to the microprocessor 44. The microprocessor 44 uses the initial value R0 as a reference value and recognizes it as a left turn when it is smaller than the initial value, and recognizes it as a right turn when it is larger than the initial value. According to the recognized result, a 4-bit control signal for forward and reverse control of the motor is provided to the decoder. The decoder 46 decodes the applied 4-bit control signal to switch the transistor of the driver 48 in 15 steps.

That is, when the steering wheel is turned to the left, the resistance value becomes smaller than the initial value. Therefore, the control signal to rotate the motor in the forward direction (clockwise) in proportion to the difference with the initial value is output, and the transistors Q2 and Q3 are turned on. As a result, the motor is applied with a driving current to rotate clockwise. Therefore, since the driver operates the steering wheel in the counterclockwise direction, the driver receives the rotational force of the motor in the opposite direction, so that the driver can feel the handling load acting in the clockwise direction.

On the contrary, when the steering wheel is turned to the right, the resistance value becomes larger than the initial value. Therefore, the control signal to rotate the motor in the reverse direction (counterclockwise) is output in proportion to the difference with the initial value, so that the transistors Q1 and Q4 The motor 16 is turned on to receive a driving current to rotate in a counterclockwise direction. Therefore, since the driver operates the steering wheel in the clockwise direction, the driver receives the rotational force of the motor in the opposite direction, so that the driver can feel the handling load acting in the counterclockwise direction.

As shown in FIG. 6, as the rotation angle of the handle increases, the motor driving current gradually increases in eight steps according to each direction, thereby detecting a large handling load.

That is, in the present invention, by minimizing the mechanical configuration and controlling the driving algorithm of the motor in multiple stages, it is possible to manufacture an active handle device that can feel realism by the simple mechanical structure and simple circuit configuration.

As described above, in the present invention, by adding a handling load in a direction opposite to the direction in which the driver wants to rotate by using a motor and a timing belt, the assembly can be provided in a very simple structure as the realism that the driver is driving a real car. It has the advantage of being excellent and reducing the production cost.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims below I can understand that you can.

Claims (3)

A handle shaft rotatably supported at the base and having a handle coupled to one end thereof; Detection means coupled to the other end of the handle shaft for detecting a rotational direction of the handle shaft; A motor supported by the base and having a rotational shaft positioned parallel to the handle shaft; A drive pulley coupled to the rotating shaft of the motor; A driven pulley fixed to the handle shaft; An endless belt coupled to the drive pulley and the driven pulley; And control means for driving control of the motor in a direction opposite to the rotational direction of the steering wheel in response to the detection signal of the detection means. The active handle for a car simulation game as claimed in claim 1, wherein the endless belt is a timing belt. The active steering wheel for a driving simulation game according to claim 1, wherein the control means controls the driving force of the motor in multiple stages in proportion to the rotation angle from the initial position to the forward and reverse directions in response to the detection signal of the detection means. .