KR20140049785A - An automatic controlling structure of suspension using tilt angle sensor - Google Patents

Abstract

The present invention relates to an automatic suspension control structure using a tilt recognition sensor. The automatic suspension control structure provides a sensor capable of recognizing the tilt of a vehicle body at a low cost, recognizes the tilt of the vehicle using the sensor, and controls the suspension of the vehicle based on the status of the vehicle tilt recognized from the sensor and the driving status of the vehicle.

Description

An automatic controlling structure of suspension using tilt angle sensor

The present invention relates to a suspension automatic control structure using a tilt recognition sensor, and more particularly, in the suspension automatic control structure, comprising a sensor capable of recognizing the inclination of the upper, lower, left, and right sides of the vehicle body, and recognized by the sensor. The present invention relates to a suspension automatic control structure using a tilt recognition sensor for controlling a suspension of a vehicle in response to a tilt of a vehicle body.

In general, a suspension system of a vehicle exists between a vehicle body and a wheel, and is a device that connects the two rigid bodies using one or more links, and is supported by a spring and a hydraulic shock absorber in the vertical direction. By appropriately matching high stiffness and flexibility in the direction, it performs a function of mechanically appropriately adjusting the relative movement between the vehicle body and the wheels.

Such a suspension system,

First, it effectively blocks the irregular input of the road surface generated during the driving of the vehicle, providing a comfortable ride comfort of the occupant. Second, it provides driving convenience by appropriately controlling the shaking of the car body caused by the driver's driving behavior and road curvature. Third, to maintain the vertical load on the tire ground surface at an appropriate level when driving on an irregular road surface to ensure the stability of the vehicle during turning, braking driving.

Therefore, the suspension system prevents damage to the vehicle body or cargo and improves the riding comfort by preventing the axle from directly transmitting shocks or vibrations received from the road surface while driving.

In the conventional suspension system, the front bumper position is lowered due to the inertia of the movement of the suspension system in a dangerous situation such as a vehicle collision, and the rear bumper position is relatively high. It had the disadvantage of making shock absorbing difficult in the lower front bumper.

On the other hand, as a method for solving the above problems of the conventional suspension system, an active suspension control system has been used. The active suspension system has been used to recognize the inclination of the vehicle through the vehicle body state (up, down, left, right) recognition sensor provided in the vehicle, and to control the operation of the suspension system in response to the inclination.

However, such a conventional active suspension control system has a disadvantage in that a significant cost is incurred in providing a tilt generation recognition structure of a vehicle body including vehicle body state recognition sensors of the vehicle. Particularly, although the vehicle body state detection sensors for each unit system currently provided in the vehicle are individually provided in each unit system, a cost more than necessary is generated because a sensor more than the sensitivity of the vehicle body tilt recognition sensor required by the unit system is provided. Therefore, it was necessary to provide a sensor suitable for system performance. Therefore, the conventional active suspension control system as described above has a disadvantage of incurring a large cost in the construction of various sensors provided to recognize the state of the vehicle.

In addition, the conventional suspension system as described above is made so that the driver who drives the vehicle according to the vehicle driving conditions and conditions can select and change the suspension tuning state of the vehicle through the mode setting (for example, sports mode). The problem was that the choice was quite limited. For example, when a driver of a vehicle wants a soft suspension tuning state for up and down vibration of a driving vehicle, and the left and right tilts generated during cornering require a hard suspension tuning state, a driver mode setting of a conventional suspension system is performed. In this case, the vehicle is set to a fixed suspension tuning state regardless of the driving state of the vehicle, and this configuration has a disadvantage in that it does not reflect driver's taste for each driver.

The present invention has been made to solve the above problems,

Provides a sensor that can be recognized at low cost to recognize the inclination of the vehicle body, and also recognizes the inclination of the vehicle using the sensor, the vehicle according to the tilted state of the vehicle and the vehicle driving situation recognized by the sensor It is an object of the present invention to provide a suspension automatic control structure using a tilt recognition sensor configured to control the suspension of the vehicle.

According to an aspect of the present invention,

A suspension automatic control structure, comprising: an X-axis tilt recognition sensor disposed in a lateral direction of a vehicle; And a Y-axis tilt recognition sensor disposed vertically with the X-axis tilt recognition sensor and disposed in a vertical direction of the vehicle. The X-axis tilt recognition sensor and the Y-axis tilt recognition sensor may include a pair of Inductance sensors 110 and 111; A pair of springs 120 and 121 having the same modulus of elasticity and having one end connected to the pair of inductance sensors 110 and 111; A pair of plates (130, 131) disposed between the pair of springs (120, 121) and the pair of inductance sensors (110, 111), respectively; An optical sensor unit 140 connected to opposite ends of the pair of springs 120 and 121 and disposed to face the light emitting unit 141 and the light receiving unit 142 spaced apart from each other; And fixing the pair of inductance sensors 110 and 111 at both ends, forming an upper groove at an upper end of the center, and forming a plurality of distance holes 152 at both sides of the upper groove, and forming the optical sensor unit. And a distance plate 150 disposed between the light emitting unit 141 and the light receiving unit 142 of the 140, and the suspension control unit of the vehicle outputs the X-axis tilt recognition sensor and the Y-axis tilt recognition sensor. Receiving and recognizing the tilt and vertical vibration of the vehicle and characterized in that to control the suspension accordingly.

In addition, the suspension control unit of the vehicle may preset the internal pressure of the shock absorber included in the suspension when the reference value is preset and the output of the optical sensor unit 140 of the X-axis tilt recognition sensor exceeds the reference value. And up and down positions of the shock absorbers of the suspension on the left and right sides of the vehicle at the same height.

In addition, the suspension control unit of the vehicle presets a vertical vibration reference value, and when the output of the optical sensor unit 140 of the Y-axis tilt recognition sensor exceeds the vertical vibration reference value, the shock absorber included in the suspension It is characterized in that the pressure is reduced and the vertical positions of the shock absorbers of the suspension of the vehicle front wheel and the rear wheel are controlled at the same height with each other.

In addition, the suspension control unit of the vehicle presets an error time reference value, receives a vehicle speed signal, counts a duration of a state in which the vehicle speed is 0, and sets the pair when the counted duration is greater than the error time reference value. When a change occurs in the output of the inductance sensors 110 and 111 and the optical sensor unit 140, it is recognized that a failure has occurred.

In addition, the suspension control unit of the vehicle, after fixing the pair of inductance sensors (110, 111) value, it is characterized in that the failure occurs if the output of the optical sensor unit 140 does not occur.

The suspension controller may be configured to determine the inclination of the vehicle by counting the number of ON / OFF while passing through the plurality of distance holes 152 when the optical sensor unit 140 moves.

The present invention having the configuration as described above

By placing two inclination recognition sensors having the same structure in the lateral direction and the vertical direction of the vehicle, respectively, there is an effect of recognizing the lateral inclination of the vehicle and the vertical inclination of the vehicle and reflecting it in the automatic suspension control.

In addition, the inclination recognition sensor of the present invention is configured to include an inductance sensor, a spring, an optical sensor, which has an effect that can be manufactured at a lower cost than the conventional two-axis gyro sensor.

In addition, by separately forming a sensor for recognizing the lateral inclination of the vehicle and the up and down inclination of the vehicle, thereby allowing the suspension control to be individually according to the driving state of the vehicle, thereby the lateral and vertical driving state of the vehicle Reflecting this, suspension tuning is possible.

Figure 1 shows the X-axis tilt recognition sensor used in the preferred embodiment of the suspension automatic control structure using the tilt recognition sensor of the present invention.
2 shows a Y-axis tilt recognition sensor used in the preferred embodiment of the present invention.
3 shows an arrangement state of the X-axis and Y-axis tilt recognition sensors.
4 shows a preferred embodiment of the optical sensor unit 140 of the present invention.
5 shows an output signal when the tilt of the optical sensor unit 140 occurs.
6 is a flowchart illustrating a method of diagnosing a failure through a sensor value in a suspension automatic control structure using a tilt recognition sensor according to a preferred embodiment of the present invention.
FIG. 7 is a flowchart illustrating a method of controlling a suspension system by recognizing when left and right tilt occurs due to rotation while driving a vehicle.
8 is a flowchart illustrating a method of controlling the suspension system by recognizing the vertical vibration caused by the unevenness while driving the vehicle.
FIG. 9 is a flowchart illustrating a method of controlling a suspension system by recognizing a case where unevenness occurs on a curved road while driving a vehicle, and left and right tilting and vertical vibration occur at the same time.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

Figure 1 shows the X-axis tilt recognition sensor used in the preferred embodiment of the suspension automatic control structure using the tilt recognition sensor of the present invention, Figure 2 is a Y-axis tilt recognition sensor used in the preferred embodiment of the present invention 3 shows an arrangement state of the X-axis and Y-axis tilt recognition sensors.

The sensor signal output from the X-axis and Y-axis tilt recognition sensor of the present invention is input to the suspension control unit provided in the vehicle, the suspension control unit recognizes the tilting and up and down vibration of the vehicle by using it, and thus the suspension of the vehicle Is made to control.

As shown, the components and structure of the X-axis tilt recognition sensor and the Y-axis tilt recognition sensor are the same, and the difference in length may occur as necessary. Hereinafter, configurations of the X-axis tilt recognition sensor and the Y-axis tilt recognition sensor having the same structure will be described with reference to the X-axis tilt recognition sensor.

As shown in FIG. 1, the X-axis tilt recognition sensor of the present invention includes a pair of inductance sensors 110 and 111, a pair of springs 120 and 121 having the same elastic modulus, and a pair of springs 120, A pair of plates (130, 131) connected to one end of the 121, both ends include an optical sensor unit 140 and the distance plate 150 connected to the pair of springs (120, 121).

The pair of inductance sensors 110 and 111 are known sensors using the inductance of a coil excited at a high frequency according to a measurement amount, and are widely used for displacement detection. The suspension automatic control structure using the tilt recognition sensor of the present invention is made to determine the speed of the vehicle tilting (vibration, vibration, etc.) by recognizing the change of the plate using the inductance sensor.

The pair of springs 120 and 121 are formed to have the same elastic modulus, and one end thereof is connected to the pair of inductance sensors 110 and 111, and the other end thereof is connected to the optical sensor unit 140. . In this case, the pair of plates 130 and 131 are disposed between the pair of springs 120 and 121 and the pair of inductance sensors 110 and 111, respectively. It is connected to a pair of springs (120, 121). Therefore, when the pair of springs 120 and 121 are tensioned by an external force, the pair of plates 130 and 131 are brought into close proximity to the pair of inductance sensors 110 and 111 and the pair of springs 120 and 121. ), The pair of plates 130 and 131 are spaced apart from the pair of inductance sensors 110 and 111.

Through this structure, the pair of inductance sensors 110 and 111 recognize the change of the pair of plates 130 and 131 to recognize the inclination of the vehicle.

As shown in the optical sensor unit 140, both ends thereof are connected to the other ends of the pair of springs 120 and 121. Accordingly, the optical sensor unit 140 is located at the center of the X-axis tilt recognition sensor in an equilibrium state. The optical sensor unit 140 is a sensor including a light emitting unit 141 and a light receiving unit 142, preferably a known light transmission photointerrupt sensor. Therefore, when the light emitted from the light emitting unit 141 reaches the light receiving unit 142, the light is turned on when the light emitted from the light emitting unit 141 does not reach the light receiving unit 142.

A preferred embodiment of the optical sensor unit 140 is shown in FIG.

As shown, the light sensor unit 140 is made to face the light emitting unit 141 and the light receiving unit 142 spaced apart from each other, the position of the light emitting unit 141 and the light receiving unit 142 is It is disposed below the light sensor unit 140. The positions of the light emitting unit 141 and the light receiving unit 142 may be located at a position spaced apart a predetermined distance downward from the positions of the pair of inductance sensors 110 and 111 and the pair of springs 120 and 121. .

The distance plate 150 has a plate shape in which a plurality of distance holes 152 are perforated. In addition, the distance plate 150 is formed to support the pair of inductance sensors 110 and 111, respectively, by forming the support 151 at both ends thereof, as shown.

The distance plate 150 is disposed to be positioned between the light emitting unit 141 and the light receiving unit 142 of the optical sensor unit 140 facing each other. Therefore, the light emitting unit 141 and the light receiving unit 142 of the optical sensor unit 140 are blocked by the distance plate 150.

On the other hand, the distance plate 150 is formed with a top groove formed in the upper end. The position of the upper groove is made to correspond to the position of the light emitting unit 141 and the light receiving unit 142 of the optical sensor unit 140, when the optical sensor unit 140 is located at the position of the upper groove, Light emitted from the light emitting unit 141 may reach the light receiving unit 142. At this time, the upper groove is preferably to have a predetermined width that can be somewhat ignored the movement of the optical sensor unit 140 due to the vehicle vibration.

On the other hand, a plurality of distance holes 152 disposed at equal intervals on both sides of the upper groove are formed by drilling. The distance holes 152 are provided to recognize the movement of the optical sensor unit 140. The light sensor unit 140 moves to the light emitting unit 141 at the positions of the distance holes 152. When the light receiver 142 is positioned, the light receiver 142 is formed to pass light emitted from the light emitter 141.

In this case, the light emitting unit 141 and the light receiving unit 142 are periodically turned on / off when the light sensor unit 140 moves by the same distance where the plurality of distance holes 152 are arranged, thereby providing the light sensor unit. It is formed to recognize the movement of the 140 as a unit distance (for example, the interval of the plurality of distance holes 152).

As described above, the X-axis tilt recognition sensor and the X-axis tilt recognition sensor configured in the same way as the X-axis tilt recognition sensor are configured as described above. The Y-axis inclination recognition sensor is disposed in the vertical direction of the vehicle and arranged vertically with each other, so that the horizontal and vertical inclination of the vehicle may be recognized.

When there is no inclination (lateral or up-down direction) of the vehicle body, the optical sensors 140 and 240 of the X-axis tilt recognition sensor and the Y-axis tilt recognition sensor may have a pair of springs 120 connected to both ends thereof. 121, 220, 221 to maintain the equilibrium (since it has the same modulus of elasticity).

However, when the vehicle body is inclined, the photosensors 140 and 240 move to the inclined side, and pass through the distance holes 152 and 252 of the distance plates 150 and 250. Accordingly, the photosensors 140 and 240 pass through the distance holes 152 and 252 and are repeatedly turned on and off to output a signal, thereby determining the inclination of the vehicle.

5 shows an output signal when the tilt of the optical sensor unit 140 made as described above occurs. As shown in FIG. 5, the optical sensor unit 140 moves in an inclined direction of the vehicle body by tilting, and passes through some of the distance holes 152 by moving, thereby outputting an ON / OFF signal. Done. Therefore, it is possible to recognize the inclination of the vehicle body by the signal output as described above.

In addition, when the output signal of the optical sensor unit 140 as described above is compared with a predetermined time, the speed of tilting (vibration, vibration) of the vehicle may be determined.

Therefore, the suspension automatic control structure using the tilt recognition sensor of the present invention by the X-axis tilt recognition sensor and the Y-axis tilt recognition sensor of the structure as described above can recognize the transverse side, up and down tilt speed of the vehicle. have.

Meanwhile, the pair of inductance sensors 110 and 111 recognize the positional change of the pair of plates 130 and 131 connected to the pair of springs 120 and 121 and thereby change the magnitude of the output signal.

Therefore, when the inclination of the vehicle body does not occur, the change of the pair of plates 130 and 131 does not occur by the pair of springs 120 and 121, and the change does not occur in the output of the inductance sensor. .

However, when the vehicle body is inclined, the pair of plates 130 and 131 connected to the pair of springs 120 and 121 move in the inclined direction (left or right), and the positions of the pair of plates 130 and 131 The change causes the output of the pair of inductance sensors 110 and 111 to change. At this time, preferably, the closer the pair of plates (130, 131) to the pair of inductance sensors (110, 111), the output signal is increased.

In the present invention, the suspension control unit of the vehicle may determine the inclination of the vehicle by recognizing a change in the output intensity of the signal output from the inductance.

On the other hand, in the suspension automatic control structure using the tilt recognition sensor of the present invention made as described above, after the optical sensor unit 140 is moved to the left or right by the inclination of the vehicle body, the optical sensor unit 140 ) May move in the opposite direction by the elasticity of the pair of springs (120, 121), or the optical sensor unit 140 may be moved in the opposite direction by the opposite steering of the vehicle body, such light In order to prevent misrecognition of the opposite direction of movement of the sensor unit 140 due to the inclination of the vehicle, it is preferable to classify as follows.

1. The position change due to the tilting of the vehicle body of the optical sensor unit 140, the position change due to the elasticity of the pair of springs 120 and 121, and the position change due to steering in the opposite direction to the vehicle body are It can be divided into generation of inflection points of the output signals of the inductance sensors 110 and 111.

2. The change of position of the optical sensor unit 140 caused by the elasticity of the pair of springs 120 and 121 and the inclination of the vehicle body in the opposite direction is caused by the optical sensor unit 140 in each case. The two cases can be discriminated by the change of the moving speed. In this case, the determination criteria may be determined based on the inflection point of the output signal of the inductance sensor.

The outputs of the optical sensor and the pair of inductance sensors 110 and 111 described above are input to a separate suspension controller (not shown), for example, an electronic control unit (ECU) or the like provided in the vehicle, It is made to determine whether the control and failure, this configuration is a known configuration and will not be described in detail.

6 is a flowchart illustrating a method of diagnosing a failure through a sensor value in a suspension automatic control structure using a tilt recognition sensor according to a preferred embodiment of the present invention.

In the vehicle equipped with the automatic suspension control structure using the tilt recognition sensor of the present invention, when the vehicle speed does not occur, that is, when the vehicle does not travel, the optical sensor unit 140 is fixed. In addition, since the pair of spring plates 120 and 121 are also stabilized, the movement change ΔDistance = 0 does not occur. Therefore, after a predetermined time has elapsed in a state where the vehicle speed of the vehicle does not occur, that is, the vehicle speed is 0, a change occurs in the output of the pair of inductance sensors 110 and 111 or the optical sensor unit 140. It can be judged as a malfunction.

Therefore, as shown in FIG. 6, the suspension control unit of the vehicle first sets a state time at which the vehicle speed is 0 kph and a preset error time reference value (where the error time reference value corresponds to the elastic modulus of the pair of springs 120 and 121). If it is determined that the A time has passed (S001), it is determined whether there is an output change in the optical sensor and the pair of inductance sensors 110 and 111 (S002).

If it is determined in step S002 that there is a change in output between the optical sensor and the pair of inductance sensors 110 and 111, a change occurs in the sensor output even though the vehicle is not in a driving state, and thus it may be determined that the sensor has failed. (S003).

If it is determined in step S002 that there is no change in output between the optical sensor and the pair of inductance sensors 110 and 111, it is determined whether the optical sensor unit 140 is in an equilibrium position (S004). The output values of the pair of inductance sensors 110 and 111 are equally fixed at the left and right equilibrium positions of the optical sensor unit 140, and the position of the optical sensor unit 140 is located at the center of the distance plate 150. Because it is located, it is turned on and an output signal is generated. Therefore, it is first determined whether the optical sensor unit 140 is in an equilibrium position by using the output value of the inductance sensor.

If it is determined in step S004 that the optical sensor unit 140 is turned off so that an output signal does not occur, an output value does not occur even though the optical sensor unit 140 is located at the center of the distance plate 150. It may be determined that the sensor has failed (S003).

FIG. 7 is a flowchart illustrating a method of controlling a suspension system by recognizing when left and right tilt occurs due to rotation while driving a vehicle.

When the vehicle rotates to the left / right side while driving, the left and right tilts occur, the optical sensor unit 140 included in the X-axis tilt recognition sensor moves to the left / right side. Accordingly, the output of the optical sensor unit 140 passes through the distance holes 152 formed in the distance plate 150 and outputs a signal indicating left and right tilt of the vehicle. At this time, the suspension control unit counts the output of the optical sensor unit 140 included in the X-axis tilt recognition sensor in order to determine the left and right tilting of the vehicle and determines whether the preset tilting reference value is exceeded (S101).

If it is determined in step S101 that the output of the optical sensor unit 140 exceeds a preset pulling reference value, the suspension controller controls to increase the internal pressure of the left / right suspension (서 absorber) (ie, Hard Type) (S102), and by controlling the upper and lower positions of the right / left suspension (the shock absorber) to the same height as the left / right suspension, it is possible to control to increase the grip force of the tire when the pull occurs (S103). .

8 is a flowchart illustrating a method of controlling the suspension system by recognizing the vertical vibration caused by the unevenness while driving the vehicle.

If vertical vibration occurs due to the unevenness of the vehicle while driving, the optical sensor unit 240 included in the Y-axis tilt recognition sensor moves up and down. Therefore, the output of the optical sensor unit 240 passes through the street holes 252 formed in the distance plate 250 and outputs a signal indicating vertical vibration of the vehicle. At this time, the suspension control unit counts the output of the optical sensor unit 240 included in the Y-axis tilt recognition sensor in order to determine the vertical vibration of the vehicle, and determines whether or not to exceed the predetermined vertical vibration reference value (S201).

If it is determined in step S201 that the output of the optical sensor unit 240 exceeds a preset vertical vibration reference value, the suspension control unit controls to reduce the internal pressure of the suspension of the front and rear wheels of the vehicle (the shock absorber). In other words, the control is performed in a soft type (S202), and the upper and lower positions of the front wheel and the rear wheel suspension (shock absorber) of the vehicle are controlled to the same height, so as to improve the riding comfort in the occurrence of vertical vibration (S203).

FIG. 9 is a flowchart illustrating a method of controlling a suspension system by recognizing a case where unevenness occurs on a curved road while driving a vehicle, and left and right tilting and vertical vibration occur at the same time.

When the left / right tilt and vertical vibration occur simultaneously due to the unevenness on the curved road while driving the vehicle, the optical sensor units 140 and 240 included in the X-axis tilt sensor and the Y-axis tilt sensor are respectively Move left / right and up / down. Accordingly, the output of each of the photosensors 140 and 240 passes through the distance holes 152 and 252 formed in the distance plates 150 and 250 and represents left / right tilting and up / down vibration of the vehicle, respectively. Output the signal.

To this end, the suspension control unit first counts the output of the optical sensor units 140 and 240 included in the X-axis tilt recognition sensor and determines whether the preset tilting reference value is exceeded (S301).

If it is determined in step S301 that the output of the optical sensor unit 140 included in the X-axis tilt recognition sensor exceeds a preset reference value, it is included in the Y-axis tilt recognition sensor to determine the vertical vibration of the vehicle. The output of the light sensor unit 240 is counted to determine whether the preset vertical vibration reference value is exceeded (S302).

In step S302, the output of the optical sensor unit 140 of the X-axis tilt recognition sensor exceeds a preset reference value, and the output of the optical sensor unit 240 of the Y-axis tilt recognition sensor is preset If it is determined that the upper and lower vibration reference value is exceeded, it is determined that the vehicle is tilted to the left and right and vibration is generated at the same time.

The suspension control unit controls to increase the internal pressure of the suspension of the front wheel and the rear wheel of the vehicle (i.e., the hard type) (S303), and the vertical position of the suspension of the front and rear wheels of the vehicle (the shock absorber). By controlling the same height with each other (S304), the control to improve the riding phenomenon due to the generation of vibration up and down at the same time to improve the pulling phenomenon by the rotation.

As mentioned above, the preferred embodiment of the automatic suspension control structure using the tilt recognition sensor of the present invention has been described in detail, but it is merely presented a specific example to help the understanding of the present invention, and to limit the scope of the present invention. It is not. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

100: X-axis tilt detection sensor 110, 111: inductance sensor
120, 121: spring 130, 131: plate
140: light sensor unit 141: light emitting unit
142: light receiver 150: street plate
151: support 152: street hall
200: Y-axis tilt sensor 210, 211: inductance sensor
220, 221: spring 230, 231: plate
240: optical sensor unit 241: light emitting unit
242: light receiver 250: street plate
251: support 252: street hall

Claims (6)

In the suspension automatic control structure,
An X-axis tilt recognition sensor disposed in a lateral direction of the vehicle; And
And a Y-axis inclination recognition sensor disposed perpendicular to the X-axis inclination recognition sensor and disposed in a vertical direction of the vehicle.
The X-axis tilt recognition sensor and the Y-axis tilt recognition sensor,
A pair of inductance sensors 110 and 111;
A pair of springs 120 and 121 having the same modulus of elasticity and having one end connected to the pair of inductance sensors 110 and 111;
A pair of plates (130, 131) disposed between the pair of springs (120, 121) and the pair of inductance sensors (110, 111), respectively;
The other end of the pair of springs (120, 121) is connected to both ends, the light sensor unit 140 and the light emitting unit 141 and the light receiving unit 142 are disposed to face each other in a state separated from each other and
The pair of inductance sensors 110 and 111 are fixed to both ends, upper grooves are formed at an upper end of the center portion, and a plurality of distance holes 152 are formed on both sides of the upper groove, and the optical sensor unit ( It includes a distance plate 150 disposed between the light emitting portion 141 and the light receiving portion 142 of the 140,
The suspension control unit of the vehicle receives the outputs of the X-axis inclination recognition sensor and the Y-axis inclination recognition sensor to recognize the inclination and vertical vibration of the vehicle, and accordingly controls the inclination recognition sensor. Suspension automatic control structure.
The method of claim 1,
Suspension control unit of the vehicle,
The tilt threshold is preset,
When the output of the optical sensor unit 140 of the X-axis tilt recognition sensor exceeds the pull reference value,
Increase the internal pressure of the shock absorber included in the suspension,
A suspension automatic control structure using an inclination recognition sensor, characterized in that the vertical position of the shock absorber of the suspension on the left and right sides of the vehicle is controlled at the same height.
The method of claim 1,
Suspension control unit of the vehicle,
Preset up and down vibration reference value,
When the output of the optical sensor unit 140 of the Y-axis tilt recognition sensor exceeds the vertical vibration reference value,
Reduce the internal pressure of the shock absorber included in the suspension,
A suspension automatic control structure using an inclination detection sensor, characterized in that the vertical position of the shock absorbers of the front and rear wheel suspensions are controlled at the same height.
The method of claim 1,
Suspension control unit of the vehicle,
Preset error time thresholds,
Receives the vehicle speed signal and counts the duration of the vehicle at zero speed,
When the counted duration is greater than the error time reference value, if a change occurs in the output of the pair of inductance sensors 110 and 111 and the optical sensor unit 140, the tilt is recognized as a failure. Suspension automatic control structure using recognition sensor.
The method of claim 1,
Suspension control unit of the vehicle,
Suspension automatic control structure using a tilt recognition sensor, characterized in that after the pair of inductance sensor (110, 111) value is fixed, if the output of the optical sensor unit 140 does not occur, a failure occurs.
The method of claim 1,
The suspension control unit,
Suspension automatic control structure using a tilt recognition sensor, characterized in that for determining the inclination of the vehicle by passing through the plurality of distance holes 152 and counting the number of ON / OFF when the optical sensor unit 140 moves.

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