JP2008260424A - Vehicular aerodynamic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular aerodynamic device capable of enhancing the braking property and the steerability without impairing the appearance quality of a vehicle. <P>SOLUTION: In a front bumper 16 of a vehicle 12, a recess 30 is formed in a corner part 20, the recess is closed by a lid member, and the recess and the inside of a wheel house 24 are communicated with each other via a communication pipe 38 having a solenoid valve 40. A controller 42 closes the recess by the lid member by turning off the solenoid valve to prevent an opening of the recess from appearing on the surface of the vehicle, and turns on the solenoid valve when detecting by a brake switch 50 that a vehicle is braked. Thus, the lid member is turned by the negative pressure generated in the wheel house in a vehicle traveling state, and operated as an aero-brake with an inner surface of the recess being an aero-kick surface. Further, when the turning operation of the vehicle is detected by a steering angle sensor 48, the solenoid valve on the turning direction side is turned on to generate the yawing moment to direct the vehicle in the turning direction. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an aerodynamic device for a vehicle that is provided in a vehicle and varies an aerodynamic characteristic in accordance with a traveling state of the vehicle.

  In the traveling vehicle, an air flow is generated around the vehicle body, and this air flow affects the air resistance Cd of the vehicle body, the operability of the vehicle, and the running stability. The air resistance at this time deteriorates the fuel consumption of the vehicle, and it is desired to reduce the air resistance from the viewpoint of energy saving.

  In general, in order to ensure good operability as well as vehicle running stability, it is necessary to reduce air resistance and improve crosswind characteristics (reduction of yawing moment coefficient). From this point, Patent Document 1 proposes to form recesses on both sides of the bumper in the vehicle width direction. At this time, in Cited Document 1, by inclining the bottom so that the outside of the recess in the vehicle width direction becomes deep, the inner surface of the recess in the vehicle width direction outside forms an aero kick surface, thereby reducing the air resistance. The yawing moment coefficient is reduced without deteriorating.

  By the way, the air resistance received by the vehicle affects the driving operability of the vehicle. From here, in Cited Document 2, the introduction port provided on the front surface of the vehicle and the outlet provided on the side surface of the vehicle are communicated by a duct, and the introduction port is opened and closed according to the brake operation and the steering operation. It is proposed to improve.

However, if an opening such as a blowout opening is formed in the recess or fender panel formed on the front surface of the vehicle body, there arises a problem that the appearance quality of the vehicle deteriorates.
Japanese Utility Model Publication No. 6-25087 JP 2006-306226 A

  The present invention has been made in view of the above-described facts, and provides a vehicle aerodynamic device capable of improving driving operability such as braking performance and steering performance of a vehicle without deteriorating the appearance quality of the vehicle. With the goal.

  In order to achieve the above object, the present invention provides a concave portion provided in each of the left and right curved portions in the vehicle width direction at the front portion of the vehicle, and an inner side in the vehicle width direction pivotally supported by a holding means. A closing member that is held in a closing position that closes the opening of the opening and that can be rotated to an opening position that enters the recess and opens the recess, and forms an aero kick surface on the inner surface of the recess at the opening position; And a communication means for rotating the lid member to the open position by a negative pressure generated in the wheel house by traveling of the vehicle, and a communication between the recess and the inside of the wheel house by the communication means And a blocking means that enables the lid member to be arranged at the closed position by the holding means by blocking the state.

  According to this invention, the lid member closes the opening of the concave portion by blocking the communication between the concave portion and the hall house by the communication means by the blocking means. Further, since the communication means is opened in the wheel house, the opening is hidden from the vehicle surface.

  Thereby, the opening for changing the air resistance of the vehicle can be prevented from appearing on the surface of the vehicle unnecessarily, so that the appearance quality of the vehicle is not deteriorated.

  The invention according to claim 2 selects each of the driving operation detecting means for detecting the driving operation state of the vehicle and the blocking means according to the driving operation state of the vehicle detected by the driving operation detecting means. And a control means which operates automatically.

  According to this invention, the blocking means is controlled based on the driving operation state of the vehicle detected by the driving operation detecting means, and the lid member is rotated. Thereby, the driving operability of the vehicle using this aero kick surface can be improved.

  The invention according to claim 3 includes, as the driving operation detection means, deceleration detection means for detecting a deceleration state of the vehicle, and when the control means detects deceleration of the vehicle by the deceleration detection means, Each of the communication means is released from the blocked state.

  According to this invention, when the deceleration operation of the vehicle is detected, the blocking of the communication means by the blocking means is released.

  Thereby, an aero kick surface is formed on both sides in the vehicle width direction of the vehicle, an aero brake effect is obtained, and the braking performance of the vehicle is improved.

  The invention according to claim 4 includes turning detection means for detecting turning operation of the vehicle as the driving operation detection means, and when the control means detects turning operation of the vehicle by the turning detection means, the blocking means The shut-off state of the communication means on the turning direction side is canceled.

  According to this invention, when the turning operation of the vehicle is detected, the blocking state of the communication means corresponding to the inner side in the turning direction is released. As a result, a lateral force in the turning direction is generated in the vehicle, and a yawing moment that turns the vehicle in the turning direction is generated by the lateral force.

  At this time, since a lateral force is generated in the front portion of the vehicle, the vehicle can be surely turned in the turning direction, and the turning operability can be improved.

  In such an invention, it is possible to apply a biasing means for biasing the lid member to the closed position by a biasing force. Accordingly, the aero kick surface can be formed in the recess by rotating the lid member when the blocking of the communication means is released while holding the lid member at the opening position of the recess with a simple configuration.

  As described above, according to the present invention, it is possible to improve driving operability and to prevent an opening for improving driving operability from deteriorating the appearance quality of the vehicle. An excellent effect is obtained.

  In addition, the present invention can provide an aero brake effect during vehicle braking and can prevent understeer from occurring during vehicle turning.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic configuration of a vehicle aerodynamic device (hereinafter referred to as an aerodynamic device 10) to which the present invention is applied. FIG. 2 schematically shows a vehicle 12 provided with the aerodynamic device 10. In the following, the front side in the vehicle front-rear direction is indicated by an arrow FR in the figure, and the left side and the right side in the vehicle width direction are indicated by arrows L and R. Further, the appearance of the vehicle 12 is basically bilaterally symmetric. In the following, when distinguishing the left and right parts in the vehicle width direction, L is attached to the symbol of the left part, and A description will be given with R added to the reference numerals.

  As shown in FIG. 2, the vehicle 12 according to the present embodiment is provided with a hood panel 14 at the front and a front bumper 16 at the front end of the hood panel 14 on the vehicle front side. Further, the vehicle 12 is provided with front fender panels (hereinafter referred to as fender panels 18 (18L, 18R)) on both sides of the hood panel 14 in the vehicle width direction.

  The front bumper 16 has corner surfaces 22 (22L, 22R) that are smoothly curved toward the fender panel 18 on the vehicle rear side at the corner portions 20 (20L, 20R) at both ends in the vehicle width direction. In addition, a wheel house 24 is formed in the fender panel 18, and as shown in FIG. 1, the vehicle 12 has front wheels 26 (26L, 26R) in the wheel house 24 (24L, 24R). Contained.

  Thus, the vehicle 12 is configured to generate an air flow along the fender panel 18 from the front surface of the front bumper 16 through the corner surface 22 of the corner portion 20 when traveling forward. At this time, in the vehicle 12, the air flow is largely prevented from being separated by the corner surface 22 of the corner portion 20, and the air resistance Cd is reduced. A known general configuration can be applied to such a vehicle 12.

  By the way, as shown in FIGS. 1 to 3, the vehicle 12 is formed with an aero kick portion 28 of the aerodynamic device 10 at each corner portion 20 of the front bumper 16. That is, in the vehicle 12, an aero kick portion 28L is formed at the left corner portion 20L in the vehicle width direction, and an aero kick portion 28R is formed at the right corner portion 20R in the vehicle width direction.

  The aero kick portion 28 includes a recess 30 formed in the corner portion 20 and a lid member 32 that closes the recess 30. The concave portion 30 is opened in the curved corner surface 22 of the corner portion 20 as, for example, a substantially circular hole (substantially circular) having a predetermined diameter, and is formed in the corner portion 20 with a predetermined depth. In the present embodiment, the opening of the recess 30 is substantially circular, but the opening of the recess is not limited to this and may be a long hole, a rectangular hole, or the like.

  As shown in FIG. 3, the lid member 32 includes a position (indicated by a two-dot chain line in FIG. 3) where the inner side in the vehicle width direction is pivotally supported by the pin 34 and closes the opening of the recess 30, and the vehicle width. It is possible to rotate between a position (indicated by a solid line in FIG. 3) where the inner side of the direction enters the recess 30 and opens the opening. That is, in the left aero kick portion 28L in the vehicle width direction, the pin 34 is disposed on the center side in the vehicle width direction of the recess 30 and in the right aero kick portion 28R in the vehicle width direction, the center in the vehicle width direction of the recess 30 is provided. Pins 34 are arranged on the side, and the lid member 32 is rotatable so as to enter the recess 30 around each pin 34 as an axis.

  As shown in FIGS. 2 and 3, each of the lid members 32 has a surface that forms a part of the corner surface 22 when the lid member 32 is in a position to close the recess 30 (see FIG. 2). ing. Thereby, in the vehicle 12, it is prevented that the appearance quality is lowered and the air resistance Cd is increased due to the formation of the recess 30 in the corner portion 20. That is, in the vehicle 12, the opening of the recess 30 is hidden by the lid member 32, and the air flow along the corner surface 22 is not disturbed, and the reduced state of the air resistance of the vehicle 12 is maintained.

  Further, as shown in FIG. 3, in the aero kick portion 28, the lid member 32 is rotated about the pin 34 and enters the recess 30, thereby along the surface of the front bumper 16 generated by the traveling of the vehicle 12. The air flow enters the recess 30 along the surface of the lid member 32. Thereby, the inner surface 30 </ b> A on the outer side in the vehicle width direction of the recess 30 becomes an aero kick surface, and the air flow is separated from the corner surface 22.

  The pin 34 that pivotally supports the lid member 32 is provided with a torsion spring 36 as urging means. The torsion spring 36 biases the lid member 32 toward a position where the recess 30 is closed. The lid member 32 is held at a position for closing the recess 30 by the biasing force of the torsion spring 36, and is rotatable to a position for opening the recess 30 against the biasing force of the torsion spring.

  On the other hand, as shown in FIGS. 1 and 3, one end of a vent pipe 38 is connected to the bottom of each of the recesses 30 as a communication means. The other end of each ventilation pipe 38 is opened in the wheel house 24 on the vehicle rear side of the aero kick part 28. Thereby, the recess 30 of the aero kick part 28L is communicated with the inside of the wheel house 24L by the communication pipe 38, and the recess 30 of the aero kick part 28R is communicated with the inside of the wheel house 24R by the communication pipe 38.

  Each of the ventilation pipes 38 is provided with an electromagnetic valve 40 (40L, 40R) as a blocking means. The electromagnetic valve 40, for example, shuts off the vent pipe 38 in a non-energized state (when turned off), but opens the passage of the vent pipe 38 when energized (when turned on), and forms a recess in the wheel house 24. 30 is in a communication state.

  In the vehicle 12, the inside of the wheel house 24 becomes negative pressure during traveling, and the lid member 32 receives pressure from the front. At this time, in the aero kick part 28, if the electromagnetic valve 40 is turned on and the inside of the wheel house 24 and the inside of the recessed part 30 are communicated with each other by the ventilation pipe 38, a pressure difference is generated with the lid member 32 interposed therebetween. Due to the difference, the lid member 32 is rotated against the urging force of the torsion spring 36 and enters the recess 30. When the electromagnetic valve 40 is turned off and the communication pipe 38 is closed, the lid member 32 is held in a state of closing the opening of the recess 30 by the air in the recess 30 and the biasing force of the torsion spring 36. The torsion spring 36 holds the lid member 32 at the closed position of the recess 30 when the electromagnetic valve 40 is off, and the lid member 32 rotates due to a pressure difference when the electromagnetic valve 40 is on. The urging force is adjusted so that

  As shown in FIG. 1, the aerodynamic device 10 includes a controller 42 as control means. The controller 42 includes a microcomputer having a general configuration in which a CPU, a ROM, a RAM, and the like are connected by a bus, an input / output interface, a drive circuit, and the like (all not shown).

  Electromagnetic valves 40L and 40R are connected to the controller 42, and the controller 42 controls on / off of the electromagnetic valves 42L and 40R.

  Further, the vehicle 12 includes a vehicle speed sensor 44 that detects a traveling speed (vehicle speed), a steering angle sensor 48 that detects an operation of the steering 46, and a brake switch 50 that detects an operation of a brake pedal (not shown) as driving operation detection means. It has. The vehicle speed sensor 44, the steering angle sensor 48, and the brake switch 50 are connected to the controller 42.

  The controller 42 detects the vehicle speed V of the vehicle 12 by the vehicle speed sensor 44. Further, the controller 42 detects whether or not the driver has operated a brake pedal (not shown) in order to brake the vehicle 12 by the brake switch 50.

  Further, the controller 42 determines from the operation amount of the steering 46 detected by the steering angle sensor 48 whether the turning operation of the vehicle 12 is started, whether the vehicle 12 is turning, or whether the turning of the vehicle 12 is finished. To do. Such determination of the operation (turning operation) of the steering 46 is performed by, for example, turning right or turning left when the vehicle 12 is operated in a right or left direction by a predetermined angle or more with the straight traveling state as the original position. It is determined that has been made. Further, while the steering wheel 46 is held in a state of being rotated to a predetermined position, it is determined that the vehicle 12 is turning, and when the steering wheel 46 is rotated toward the original position, the turning of the vehicle 12 is performed. It is determined that the process has ended.

  The controller 42 normally turns off the electromagnetic valves 40L and 40R to block communication between the inside of the wheel house 24 and the recess 30 of the aero kick part 28. However, the vehicle speed sensor 44 indicates that the vehicle 12 is in a traveling state. When the determination is made, the electromagnetic valve 40 (40L, 40R) is turned on according to the driving operation state of the vehicle 12, and the aero kick unit 28 is operated.

  At this time, when the brake switch 50 is turned on and the vehicle 12 is braked (brake operation), the controller 42 turns on both the electromagnetic valves 40L and 40R. That is, the controller 42 turns off the electromagnetic valves 40L and 40R when the vehicle 12 is stopped, accelerated, or driven at a low speed, and the aero kick portions 28L and 28R close the recessed portion 30 with the lid member 32. When the vehicle 12 is decelerated, the electromagnetic valves 40L and 40R are turned on to control the lid member 32 to enter the recess 30.

  Further, when the controller 42 detects that the turning operation of the vehicle 12 has been performed by the rudder angle sensor 48, the controller 42 turns on the electromagnetic valve 40 on the turning direction side, and turns the aero kick part 28 (aero kick part 28L or aero aerodynamic part) In the kick portion 28 </ b> R), the lid member 32 is controlled to enter the recess 30.

  That is, the controller 42 controls the on / off operation of the electromagnetic valves 40L, 40R by the vehicle speed detected by the vehicle speed sensor 44, the on / off of the brake operation of the vehicle 12 detected by the brake switch 50, and the steering angle sensor 48. Control is performed based on the detected operation direction of the steering 46 (the turning direction of the vehicle 12).

  In the vehicle 12 configured in this way, as shown in FIGS. 4A and 4B, the air flow during traveling runs along the corner surface 22 of the corner portion 20 from the front bumper 16, thereby reducing the air resistance. Is suppressed, a force (front attractive force X) that is pulled forward is obtained. 4A shows the non-operating state of the aero kick unit 28 (the electromagnetic valve 40 is in an off state), and FIG. 4B shows the operating state of the aero kick unit 28 (the on state of the electromagnetic valve 40). ing.

Here, as shown in FIG. 4 (A), before attraction X is assumed to be pre attraction X ₀ when the aero kick portion 28 air resistance is reduced in the non-operating state. At this time, if an aero kick surface is formed in the concave portion 30 provided in the corner portion 20 of the front bumper 16, the air flow is separated at the aero kick surface. Thus, as shown in FIG. 4 (B), the vehicle 12, prior attractive force X is decreased before attraction X _1. The difference in the front attractive force X at this time becomes a difference in drag due to a change in air resistance, and acts on the vehicle 12 as a braking force (aero brake).

  Further, for example, when the vehicle 12 is turning right, when the lid member 32 of the aero kick portion 28R on the turning direction side is rotated and the recess 30 is opened, the inner surface 30A of the recess 30 becomes the aero kick surface. Thus, the air flow is separated from the corner surface 22R.

  As shown in FIG. 5, the vehicle 12 receives a lateral force Y in the right direction by the air flow separated from the corner surface 22 </ b> R. Further, the vehicle 12 generates a yawing moment Z in the right direction due to the lateral force Y. At this time, since the vehicle 12 receives the lateral force Y at the front, the front of the vehicle 12 is directed in the turning direction.

  When the vehicle 12 is turning counterclockwise, the recess 30 of the aero kick portion 28L is opened, so that the vehicle 12 receives a lateral force Y in the left direction, thereby generating a counterclockwise yawing moment Z.

  As a result, the vehicle 12 is prevented from understeering when turning, and the steering performance according to the steering operation is improved.

  Thus, in the aerodynamic device 10, the braking performance and steering performance of the vehicle 12, that is, the driving operability of the vehicle 12 is controlled by controlling on / off of the electromagnetic valves 40 </ b> L and 40 </ b> R based on the driving operation state of the vehicle 12. The improvement is aimed at.

  Here, aerodynamic control of the vehicle 12 by the controller 42 provided in the aerodynamic device 10 will be described with reference to FIG. The flowchart is executed when an ignition switch (not shown) of the vehicle 12 is turned on, and is ended when the ignition switch is turned off.

  In this flowchart, the vehicle speed V of the vehicle 12 detected by the vehicle speed sensor 44 in the first step 100 is read, and in step 102, it is confirmed whether or not the vehicle speed V exceeds the set speed Vs. The set speed Vs at this time may be a speed (for example, about 1 to 4 km / h) for determining whether the vehicle 12 is running or stopped, but air resistance affects the operability of the vehicle 12. The speed (for example, 30-40 km / h or more) may be received.

  In the present embodiment, as an example, the set speed Vs is a speed set in advance in a range of about 30 km / h to 50 km, and thus, when the vehicle 12 is stopped or traveling at a low speed, With the opening easily visible, the lid member 32 rotates and the opening of the recess 30 appears at the corner portion 20 of the front bumper 16 and the appearance of the vehicle 12 deteriorates (the appearance quality deteriorates). Try to prevent.

  When the vehicle 12 starts running and the vehicle speed V exceeds the set speed Vs (V ≧ Vs), the controller 42 of the aerodynamic device 10 makes an affirmative determination in step 102 and proceeds to step 104. In this step 104, it is confirmed whether or not the brake switch 50 is turned on. In step 106, it is confirmed whether or not the steering 46 has been rotated in order to turn the vehicle 12. That is, in this step 104, it is confirmed whether or not the brake has been operated to brake the vehicle 12, and in step 106, it is confirmed whether or not the vehicle 12 has started to turn.

  Here, when a brake pedal (not shown) is depressed to brake the vehicle 12 and the brake switch 50 is turned on, an affirmative determination is made in step 104 and the routine proceeds to step 108. In step 108, each of the electromagnetic valves 40L and 40R is turned on.

  In the aero kick parts 28L and 28R, when the electromagnetic valves 40L and 40R are turned on, the wheel houses 24L and 28R and the concave part 30 are communicated with each other, the inside of the concave part 30 is in a negative pressure state, and the lid member 32 rotates.

  Thus, in the vehicle 12, the aero kick portions 28L and 28R form aero kick surfaces at the corner portions 20L and 20R and act as aero brakes by the driver's braking operation. Therefore, the braking performance of the vehicle 12 is improved.

  When the electromagnetic valves 40L and 40R are turned on in the controller 42 of the aerodynamic device 10, it is confirmed in step 110 whether or not the brake switch 50 is turned off. In step 112, whether or not the vehicle speed V is lower than the set speed Vs. To check.

  Here, when the driver stops the brake operation and the brake switch 50 is turned off, an affirmative determination is made in step 110 and the process proceeds to step 114. In step 114, the electromagnetic valve 40 (40L, 40R) is turned off.

  In the aero kick section 28, the electromagnetic valve 40 is turned off, so that the space between the wheel house 24 and the recess 30 is blocked, and the lid member 32 is rotated by the biasing force of the torsion spring 36 to close the recess 30. Thereby, in the vehicle 12, the air resistance is returned to the reduced state, and the opening of the concave portion 30 formed in the corner portion 20 is hidden by the lid member 32.

  Further, when the vehicle speed V becomes lower than the set speed Vs (V <Vs), the controller 42 makes an affirmative determination in step 112 and proceeds to step 114 to turn off the electromagnetic valve 40. Thus, when the aero brake effect is low and the speed is low, the recess 30 is opened and the appearance quality (appearance) of the vehicle 12 is prevented from being deteriorated.

  Here, when the vehicle speed V falls below the set speed Vs, the electromagnetic valve 40 is turned off and the recess 30 is closed by the lid member 32. However, the present invention is not limited to this, and the vehicle 12 is stopped. The electromagnetic valve 40 may be turned off at (set speed Vs = 0 km / h).

  On the other hand, the controller 42 detects the operation of the steering 46 by the rudder angle sensor 48. If the driver performs the operation (rotation operation) of the steering 46 in order to turn the vehicle 12, etc., an affirmative determination is made in step 106. Is done. If an affirmative determination is made in step 106, the routine proceeds to step 116 where the direction of rotation of the steering 46 is confirmed.

  Here, for example, when the steering 46 is rotated to the right in order to perform a right turn of the vehicle 12, an affirmative determination is made in step 116 and the process proceeds to step 118, where the electromagnetic valve of the aero kick unit 28R on the turn direction side. Turn on 40R.

  Further, when the steering 46 is rotated leftward (left turning operation of the vehicle 12), a negative determination is made at step 116 and the routine proceeds to step 120, where the aero kick portion 28L on the turning direction side at this time The electromagnetic valve 40L is turned off.

  Thereby, in the vehicle 12, the recessed part 30 by the side of a turning direction is opened, and the lateral force toward a turning direction is received. This lateral force generates a yawing moment Z in the turning direction (clockwise yawing moment Z when turning right, and counterclockwise yawing moment Z when turning left). The yawing moment Z causes the vehicle 12 to turn. Directed to.

  Therefore, the vehicle 12 can be prevented from understeering, and stable turning performance can be obtained.

  When the controller 42 opens the electromagnetic valve 40 on the turning direction side, in step 124, the controller 42 checks whether or not the turning operation has been completed, and for example, returns the steering 46 to the original position (position where the vehicle 12 goes straight). Then, an affirmative determination is made at step 124 and the routine proceeds to step 114 where the electromagnetic valve 40 is turned off.

  Thus, in the vehicle 12, the recess 30 on the turning direction side is closed to conceal the opening, the balance of the lateral force Y is returned, and the yawing moment Z is extinguished.

  As described above, in the aerodynamic device 10, the openings of the recesses 30 formed at both ends of the front bumper 16 are closed in a normal state, and the aerokick is performed by opening the recesses 30 according to the driving operation state of the driver. Make the face appear.

  As a result, the aerodynamic device 10 can provide comfortable driving operability according to the driver's intention while preventing the appearance quality of the vehicle 12 from deteriorating.

  In the present embodiment, the torsion spring 36 is used as the holding means. However, the present invention is not limited to this, and any biasing means can be applied. Further, the holding means is not limited to the urging means, and the lid member 32 can be held at the closed position of the recess, and the lid member 32 can be rotated when the inside of the recess 30 becomes negative pressure. Any configuration can be applied as long as it is a configuration.

  In the present embodiment, the electromagnetic valve 40 is used as the blocking means. However, the blocking means is not limited to this. For example, a valve body is provided in the opening on the wheel house 24 side of the communication pipe 38 or the opening on the recess 30 side. Arbitrary configurations can be applied as long as the communication between the wheel house 24 and the recessed portion 30 can be communicated / blocked, such as by disposing and driving the valve body with an actuator to block the communication pipe 38.

  In the present embodiment, the vehicle speed sensor 44, the rudder angle sensor 48, and the brake switch 50 are used as the driving operation detection means. For example, instead of the vehicle speed sensor 44 and the brake switch 50, an acceleration sensor may be used. Any detection means can be applied as long as the vehicle 12 can detect deceleration and turning operations.

  The present embodiment described above does not limit the configuration of the present invention, and the vehicle aerodynamic device of the present invention is not limited to the vehicle 12 and can be applied to vehicles having any known configuration. .

It is a schematic block diagram of the aerodynamic apparatus applied to this Embodiment. It is a schematic perspective view which shows an example of the vehicle applied to this Embodiment. It is the schematic which shows an example of the aero kick part provided in a vehicle. (A) And (B) is the schematic which shows the aerodynamic force which arises in a vehicle front end part, (A) shows the non-operation state of an aero kick part, (B) has shown the operation state of the aero kick part. . It is the schematic which shows the aerodynamic force which arises in the vehicle front-end part at the time of the vehicle turning right. It is a flowchart which shows the outline of the aerodynamic control by the aerodynamic apparatus applied to this Embodiment.

Explanation of symbols

10 Aerodynamic devices (aerodynamic devices for vehicles)
12 Vehicle 16 Front bumper 20 (20L, 20R) Corner portion 22 (22L, 22R) Corner surface 24 (24L, 24R) Wheel house 28 (28L, 28R) Aero kick portion 30 Recess 32 Cover member 34 Pin 36 Torsion spring (biasing) Means, holding means)
38 Communication pipe (communication means)
40 (40L, 40R) Solenoid valve (blocking means)
42 Controller (control means)
44 Vehicle speed sensor (vehicle speed detection means, driving operation detection means)
46 Steering 48 Steering angle sensor (turning detection means, driving operation detection means)
50 Brake switch (deceleration detection means, driving operation detection means)

Claims (5)

A recess provided in each of the left and right curved portions in the vehicle width direction at the front of the vehicle;
The holding means pivotally supports the inner side in the vehicle width direction and is held in a closed position that closes the opening of the recess, and is capable of rotating into an opening position that enters the recess and opens the recess. A closing member that forms an aero kick surface on the inner surface of the recess;
Communicating means for communicating each of the recesses with the wheel house, and for rotating the lid member to the open position by a negative pressure generated in the wheel house by traveling of the vehicle;
A blocking means that allows the lid member to be arranged at the closed position by the holding means by blocking the communication state of the recess with the inside of the wheel house by the communication means;
A vehicle aerodynamic device comprising: Driving operation detecting means for detecting the driving operation state of the vehicle;
Control means for selectively operating each of the blocking means according to the driving operation state of the vehicle detected by the driving operation detecting means;
The aerodynamic device for a vehicle according to claim 1, comprising:   The driving operation detecting means includes a deceleration detecting means for detecting a deceleration state of the vehicle, and when the control means detects the deceleration of the vehicle by the deceleration detecting means, the disconnecting state of the communication means by each of the blocking means The vehicle aerodynamic device according to claim 2, wherein:   The driving operation detecting means includes a turning detecting means for detecting turning operation of the vehicle, and when the control means detects turning operation of the vehicle by the turning detection means, the communication means on the turning direction side by the blocking means The vehicle aerodynamic device according to claim 2, wherein the shut-off state is released.   5. The vehicle aerodynamic device according to claim 1, wherein the holding unit is a biasing unit that biases the lid member to the closed position by a biasing force.

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