KR950005298Y1 - Motor mimicry steering wheel of simulator apparatus for driving training - Google Patents

Abstract

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Description

Car Steering System of Simulator for Car Driving Practice

1 is a block diagram of a power transmission unit of the present invention simulated vehicle.

2 is a plan view of the power transmission unit of the present invention simulated vehicle.

3 is a diagram showing the diameter and number of teeth of the power transmission gears of the simulation vehicle of the present invention

* Explanation of symbols for main parts of the drawings

1: vehicle body 2: steering wheel

3: steering wheel shaft 4, 5: left and right wheels

6: shaft gear 7: middle gear

8: center gear 9A, 9B: 1st reduction gear

10A, 10B: 2nd reduction gear 11A, 11B: 3rd reduction gear

In order to simulate the course test during the driver's license test, the present invention projects a simulated steering wheel having a rotation amount that drives the wheel corresponding to the actual rotation of the steering wheel of the vehicle, and protrudes upward from the simulation vehicle. By configuring the power transmission means of the gear that can steer the front wheel of the car, it is possible to easily implement the simulation for driving the vehicle.

In a conventional vehicle driving practice simulator device (Korean Utility Model Publication No. 1406, Publication No. 91-2986), a simulated vehicle installs a pinion gear on a shaft of a steering wheel that has the same rotation angle as the front wheel, and is coupled with the pinion gear to the front wheel. The direction of the front wheel is controlled by using a rack gear that rotates in a direction. However, the steering means by the rack and the pinion gear are compared to the actual vehicle, and the amount of rotation of the steering wheel in the actual vehicle: steering angle of the wheel and simulation The amount of rotation of the steering wheel in the car: It is difficult to match the steering angle of the wheels to 1: 1, so that it is difficult to obtain a real vehicle driving feeling when practicing with the simulated car steering wheel, and to eliminate the instability of the steering wheel steering. There was a difficult problem.

The present invention is a simulator apparatus by installing a shaft that can rotate the wheel in response to a plurality of reduction gear and gear drive so that the actual steering wheel rotation amount: wheel steering angle of the vehicle and the simulated steering wheel rotation amount: wheel steering angle of the same ratio. When the driving practice of the vehicle is performed, the driving sensation can be matched to the driving sensation in the actual vehicle, stable steering operation can be performed, and driving efficiency of the vehicle can be improved accordingly. An object of the present invention is to provide a simulator of a practice simulator device, and the configuration and operation effects of the present invention are described in detail below with reference to the accompanying drawings.

That is, the simulated vehicle of the present invention, referring to FIGS. 1 and 2, the steering wheel 2 and the steering wheel shaft 3 and the steering wheel 2 which protrude to the upper surface of the vehicle body 1 and are capable of steering wheels from the outside. In order to transmit the rotational force of the wheel to the left and right wheels (4) (5) in an equal amount of rotation, the shaft gear (6) installed on the steering wheel shaft (3) and the intermediate gear rotated in combination with the shaft gear (6) ( 7), a center gear 8 coupled to the intermediate gear 7 and rotated by the same amount of rotation as the shaft gear 6, and left and right wheels 4 and 5 from the center gear 8; Actual vehicle steering wheel rotation: left and right pairs of first and third reduction gears 9A, 10A, 11A, 9B, 10B, 11B which transmit directional torque at the same ratio as the steering wheel angle. ) And the shafts of the third reduction gears 11A and 11B of the final stage are connected to the supporting shafts 4A and 5A, and are redirected to the same amount of rotation as the final gear reduction gears 11A and 11B. Backward It consists of the left / right front wheel (4) (5) to move the cloud, the steering operation by this will be described as follows.

First, by configuring the ratio of the diameter and the number of teeth of the respective gears as follows, it is simulated by the actual vehicle (passenger car). [See Fig. 3].

The shaft gear 6 connected to the shaft 3 of the steering wheel 2 has a diameter of 5 mm (radius r 6 = 2.5 mm), and 10 gear teeth are formed in all and are connected to the shaft gear 6. The intermediate gear 7 has a diameter of 21 mm (radius r7 = 10.5 mm) and 50 gear teeth are formed. The center gear 8 connected to the intermediate gear 7 has a diameter of 5 mm (radius). r8 = 2.5 mm), 10 gear teeth are formed in all, and the first reduction gears 9A and 9B connected to the center gear 8 have a diameter of 21 mm (radius r9 = 10.5 mm), 51 gear teeth are formed in all, and the 2nd reduction gears 10A and 10B which are coaxially connected with the 1st reduction gears 9A and 9B have a diameter of 5 mm (radius r10 = 2.5 mm). , 10 gear teeth are formed, the third reduction gears 11A and 11B have a diameter of 20 mm (radius r11 = 10 mm), and the gear teeth are part of the central axis (angle (θ) = 105). 13 pieces are formed in FIG.

The reason why the gear teeth are formed within 105 degrees of the third reduction gears 11A and 11B is that the wheels 4 and 5 do not need to rotate 360 degrees.

With this diameter and tooth ratio, when the steering wheel 2 rotates once, the shaft gear 6 also rotates once, and when the shaft gear 6 rotates once, the intermediate gear 7 rotates 10/50. When the intermediate gear 7 rotates 10/50, the center gear 8 rotates once, and the rotation amounts of the steering wheel 2 and the center gear 8 become equal.

When the center gear 8 rotates once, the first reduction gear 9A, 9B rotates 10/51, and when the first reduction gear 9A, 9B rotates, the second reduction gear 10A, 10B. ) Is also the same axis, the same amount of rotation as the first reduction gear (9A) (9B) is rotated, and if the second reduction gear (10A) (10B) rotates once, the third reduction gear (11A) (11B) is a gear It rotates at an angle corresponding to the tooth ratio 10:13.

That is, the amount of rotation finally transmitted to the wheels 4 and 5 has 13 teeth in 105 degrees in the third reduction gears 11A and 11B, so that 105/13 = 8.07 degrees per tooth. Since the number of teeth of the second reduction gears 10A and 10B is ten, the third reduction gears 11A and 11B are formed when the second reduction gears 10A and 10B rotate one rotation (360 degrees). The amount of rotation is rotated at a rate of 10 * 8.07 = 80.7 degrees.

Therefore, the relationship between the gear tooth ratio and the amount of rotation described above makes it possible to transmit at a rate that is close to the actual vehicle when the amount of rotation of the steering wheel is transmitted at the amount of rotation of the wheels 4 and 5, and such a ratio It is simulated on average with reference to the fact that each car has a slightly different steering wheel: steering angle ratio.

That is, as shown in FIG. 1, when the operator rotates the steering wheel 2 to the left / right side, the intermediate gear 7, the center gear 8, and the reduction gear (from the shaft gear 6 formed on the shaft 3) ( As the steering force is transmitted to the wheels 4 and 5 via 9A, 10A, 11A, and 9B, 10B and 11B, the support shafts 4A and 4B are rotated at a predetermined angle and left / right. The right wheels 4 and 5 are equally redirected.

For example, when the steering wheel 2 is turned clockwise, the shaft gear 6 together with the shaft 3 rotates in the same direction.

That is, referring to FIG. 2, the shaft gear 6 is rotated in the clockwise direction, and thus the intermediate gear 7 is rotated in the counterclockwise direction, and the center gear 8 coupled with the intermediate gear 7 is clockwise. Is rotated in the direction.

Here, the diameter and number of teeth of the shaft gear 6, the intermediate gear 7, and the center gear 8 are implemented so that the steering wheel 2 and the center gear 8 may have the same rotation angle as described above.

That is, according to the above-described tooth ratio, the tooth ratio of the shaft gear 6: intermediate gear 7: center gear 8 = 1: 5: 1 is obtained.

In this way, when the center gear 8 is rotated in the clockwise direction, the first reduction gear 9A and the second reduction gear 10A rotate in the counterclockwise direction, and the third reduction gear 11A rotates in the clockwise direction. do.

Here, the diameters and gear tooth ratios of the first to third reduction gears 9A, 10A and 11A are as described above. Total quantity: The ratio is equal to the ratio of wheel steering angle.

That is, according to the tooth ratio described above, the center gear 8 is the first gear ratio 9A = 10: 51 and the tooth ratio is 10: 21, and the rotation angle of the first gear gear 9A = It is the rotation angle of the 2nd reduction gear 10A, It has the tooth ratio of 2nd reduction gear 10A: 3rd reduction gear 11A = 10: 13 (within (theta) 105 degree), and diameter ratio of 5:20. will be.

In this way, when the third reduction gear 11A is rotated, the left wheel support shaft 4A, which is rotated at the same axis as the shaft, is rotated at the same angle, so that the left wheel 4 is as shown by the dotted line in the drawing. It is redirected at the same angle.

Meanwhile, the rotation of the center gear 8 is performed by the first reduction gear 9B, the second reduction gear 10B, the third reduction gear 11B, the right wheel support shaft 5A, and the right wheel 5 on the other side. As transmitted in the case of the left wheel turning drive described above, the right wheel 5 is also turned in the same direction and angle as the left wheel 4.

In other cases, rotating the steering wheel 2 counterclockwise in FIG. 1 causes the left / right wheels 4 and 5 to rotate in the opposite directions as described in FIG. Will be converted.

As described above, according to the present invention, when changing the direction of the simulated vehicle in the vehicle driving practice simulator device, since the direction change sense of operating the steering wheel corresponds to the actual vehicle, the driving practice effect can be doubled, and driving practice Improved efficiency can be secured, and accurate and easy steering is possible according to the gear drive, which has the effect of improving the reliability and quality of the product.

Claims (1)

Rotation amount equal to the steering wheel 2 and the steering wheel shaft 3 and the steering wheel 2 and the left and right wheels 4 and 5 that protrude to the upper surface of the vehicle body 1 and handle the steering wheel from the outside. And an intermediate gear (6) which is coupled to the shaft gear (6) and rotates in combination with the shaft gear (6), so as to transfer the shaft gear (6): to the intermediate gear (7). The number of teeth is 10:50, the ratio of the gear diameter is 10:21, and is provided with a center gear 8 coupled to the intermediate gear 7 and rotating at the same rotational amount as the shaft gear 6, wherein the middle The gear ratio of the gear 7: the center gear 8 is 50: 10, the ratio of the gear diameter is 21: 5, and the actual vehicle steering wheel from the center gear 8 to the left and right wheels 4, 5. Rotation amount: provided with a pair of left and right first to third reduction gears 9A, 10A, 11A, 9B, 10B and 11B which transmit the direction rotational force at the same ratio as the ratio of the wheel steering angle. Among the above The gear ratio of the gear 8 to the first reduction gear 9A, 9B is 10:51, the ratio of the gear diameter is 5:21, and the first reduction gear 9A, 9B and the second reduction gear ( 10A) 10B are coupled to the same shaft, and the number ratio of the second reduction gears 10A, 10B: the third reduction gears 11A, 11B is 10: 13, with the exception of the third reduction gear 11A. 11B is comprised of the gear of said 10:13 within an angle of 105 degree | times, and the ratio of the diameter is 5:20, and the support shaft 4A () is attached to the axis | shaft of the said end gear reduction gear 11A, 11B. 5A) is simulated vehicle of the simulator driving device for driving practice consisting of the left and right wheels (4) (5) which are converted to the same amount of rotation as the final gear reduction gear (11A) (11B) and rolled forward and backward. Steering device.