Route departure defense for vehicle on magnetic path

Abstract

To inhibit route departure of a traffic facility caused by magnetic induction due to sharp veering or acute braking.SOLUTION: When a magnetic induction vehicle travels at a high speed, a magnetic sensor is depressed and brought into contact with a road surface in advance according to a route situation such as a sharp turning route. An excitation current is augmented in order to intensify a route suction magnetic force. When a road surface is frozen or an emergency braking maneuver is performed, if a vehicle is skidded, rotation suppression pieces mounted on a magnetic sensor substrate are compressed to the road surface concurrently with the braking maneuver.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] A system that prevents vehicles from leaving the route due to slippage, etc., by detecting the route direction using magnetic sensors on a magnetic guideway, and encourages vehicles to return to the route. [Background technology]

[0002] Subways and buses are common urban public transportation systems, but subways are extremely expensive, buses have unstable operating hours, and they are unable to utilize recent software technology such as displaying vehicle operation status. This proposal also provides an operation method that reduces slippage accidents, which is particularly important, on magnetic tracks that ensure safe operation by sharing them with general vehicles. [Prior art documents] [Patent documents]

[0003] Patent application 2023-181742 Patent application number 2022-92864 Summary of the Invention [Problem to be solved by the invention]

[0004] Braking during high-speed driving or vehicle slippage when the track is frozen in winter are issues for vehicles traveling on ordinary roads, and there is a risk of vehicle departure from the track even on magnetically guided tracks. - When operating at high speeds on curved sections of the track, vehicles are prone to leaving the track, and a function to constantly prevent this is required. (c) It is necessary to change the vehicle operation in response to changes in the driving environment, such as high-speed driving of the vehicle and curving of the lane. [Means for solving the problem]

[0005] In a vehicle that runs on a magnetically guided track and has its direction controlled by a magnetic sensor, a magnetic sensor consisting of an excitation coil that controls magnetic force using an excitation current and a magnetic material is placed on a base and attached to a rotating support, and this rotating support passes through the bottom plate of the vehicle and to the top, a contact type rotation counter and a pressure cylinder are attached, a rotating bearing is attached to the bottom plate of the vehicle and a buffer coil spring is fixed to this bearing, the rotating support is passed through the inside of the coil spring and the lower end of the buffer coil spring is fixed to the magnetic sensor base, thereby holding the magnetic sensor and realizing rotation of the magnetic sensor in accordance with up and down movement and the turning of the track. The magnetic sensors installed on the rotating support pillars are attached to the left and right sides of the vehicle's underside facing the magnetic track, and the rotating support pillars are raised and lowered using a pressure cylinder. During normal operation, the magnetic sensors are held away from the road surface and use a weak magnetism to function as a track direction monitoring sensor. In an emergency, based on command information from the vehicle, the magnetic sensors are pressed onto the road surface and at the same time the excitation current is increased to increase the magnetic attraction force and prevent the vehicle from leaving the magnetic track. In addition, both magnetic sensor bases are equipped with rotation prevention blocks in the direction of vehicle travel, and in the event of significant slippage due to road icing or sudden braking, a strong current increases the attraction to the magnetic track, and a pressure cylinder presses the rotation prevention blocks on both poles of the magnetic material to the road surface, promoting a braking effect. Furthermore, when traveling at a constant speed in a circle, such as at an intersection, the steering angle remains constant, but the required steering angle changes as the vehicle speed changes. At all curved sections on the route, excessive speed and steering operation pose a risk of skidding and leaving the route, so speed limits and maximum steering angles are set for all curved sections on the operating route. [Effects of the Invention]

[0006] Under normal conditions, the vehicle in this plan operates by using tires to guide the road surface in the same way as a regular vehicle, but on dangerous routes where the road surface is frozen or where sudden braking is required due to curved sections, operational standards for the vehicle are set in advance to limit speed, sharp steering, etc. When the road is frozen or emergency braking is required, a strong magnetic attraction force is generated by controlling the magnetic sensor's strong current, attracting the vehicle to the magnetic track, ensuring safe operation on the magnetically guided track. (b) At curved points on the guideway, a discrepancy occurs between the vehicle's running direction and the direction of the vehicle's front. However, by adjusting the direction of the magnetic sensor within a limited angle, this can be corrected and an accurate steering angle can be sent to the vehicle control unit. (c) As a magnetic sensor, it detects even minute changes in the guideway and sends steering signals to the vehicle steering mechanism. When the vehicle deviates significantly from the route due to a slippage or other reason, the magnetic attraction force of the magnetic sensor, which has both poles enlarged to fit the road surface, and the pressure cylinder and shock absorbing coil that press the rotation prevention piece to the route, suppress the forward slippage of the vehicle and make it easy to return the vehicle to the route. (d) By realizing safe and reliable magnetic guidance, it will be possible to detect and control obstacles ahead using magnetic tracks, automatically control branching roads, detect the running position of vehicles on the tracks, and other functions, which will greatly contribute to the modernization and safety of the transportation system. (ii) The magnetic force of the magnetic sensor that captures magnetic material on the road can be preset or emergency controlled depending on the situation, such as when the road turns, the vehicle speed, or when an obstacle on the road is detected, thereby promoting safe driving. [Brief explanation of the drawings]

[0007] [Figure 1] Vehicle guidance on magnetic tracks and prevention of deviation from tracks DETAILED DESCRIPTION OF THE INVENTION

[0008] The top of Figure 1 shows a side view of the magnetic road vehicle guidance and line departure prevention system, and the bottom a bottom view. In the figure, magnetic sensor 2 is configured by attaching excitation coil 8, which controls magnetic force by excitation current, and magnetic material 10 to magnetic sensor base 9, which is then fixed to rotating support 4. Rotating support 4 is fixed to rotating support support 3 at the top of buffer coil spring 5, which passes through rotating support 4 and penetrates vehicle bottom panel 1, and the lower end of buffer coil spring 5 is fixed to magnetic sensor base 9. A contact rotation counter 7 is placed on the rotating support 4 at the top of the vehicle bottom plate 1, and receives direction information from the magnetic sensor 2, acquiring the direction information from the magnetic sensor 2. Furthermore, a pressure cylinder 6 is attached to the top of the rotating support, and the magnetic sensor 2 is moved up and down by the pressure cylinder 6. The magnetic sensors 2 installed on the rotating support 4 are attached to the left and right sides of the bottom of the vehicle, facing the magnetic track, with their zero points aligned in the front-to-back direction of the vehicle. The pressure cylinder 6 raises and lowers the rotating support 4, and during normal operation the magnetic sensor 2 is kept away from the road surface, and a weak magnetism allows it to function as a monitoring sensor for the track direction, and the excitation current is increased when traveling at high speeds or on curved sections of the track to prevent the vehicle from leaving the magnetic track. Furthermore, in the event of an emergency operation such as when the road surface is icy or there is a large slip due to sudden braking, the excitation current of the magnetic sensors on the left and right sides of the vehicle is increased based on instruction information from the vehicle to strengthen the track attraction force, and the rotation prevention piece 11 of the magnetic sensor base 9 is pressed against the road surface by the pressing cylinder 6, thereby promoting the braking effect. [Explanation of symbols]

[0009] 1 Vehicle bottom plate 2 Magnetic Sensor 3 Rotating support 4 Rotating Supports 5. Buffer coil spring 6 Crimping cylinder 7. Contact Rotation Counter 8 Excitation coil 9 Magnetic sensor board 10 Magnetic material 11 Square calculator 12 Rotation prevention piece

Claims

[Claim 1] In a vehicle that runs on a magnetically guided track and has its direction controlled by a magnetic sensor, a magnetic sensor consisting of an excitation coil that controls magnetic force using an excitation current and a magnetic material is placed on a base and attached to a rotating support, and this rotating support passes through the bottom plate of the vehicle and to the top, a contact type rotation counter and a pressure cylinder are attached, a rotating bearing is attached to the bottom plate of the vehicle and a buffer coil spring is fixed to this bearing, the rotating support is passed through the inside of the coil spring and the lower end of the buffer coil spring is fixed to the magnetic sensor base, thereby holding the magnetic sensor and realizing rotation of the magnetic sensor in accordance with up and down movement and the turning of the track. The magnetic sensors installed on the rotating support pillars are attached to the left and right sides of the vehicle's underside facing the magnetic track, and the rotating support pillars are raised and lowered using a pressure cylinder. During normal operation, the magnetic sensors are held away from the road surface and use a weak magnetism to function as a track direction monitoring sensor. In an emergency, based on command information from the vehicle, the magnetic sensors are pressed onto the road surface and at the same time the excitation current is increased to increase the magnetic attraction force and prevent the vehicle from leaving the magnetic track. In addition, both magnetic sensor bases are equipped with rotation-preventing blocks in the direction of vehicle travel, and in the event of significant slippage due to road icing or sudden braking, a strong current increases the attraction force to the magnetic track, and the pressure cylinder presses the rotation-preventing blocks on both poles of the magnetic material against the road surface, promoting the braking effect.

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