Control system of air filter and vehicle

Abstract

This application relates to a control system for an air filter and a vehicle, and relates to the technical field of vehicle control. The control system of the air filter includes: an air filter and a controller. The air filter includes a first housing, a second housing, an electromagnetic unit, and a limiting unit. The first housing is connected to the second housing through the limiting unit; the first housing is located above the second housing. The controller is configured to: control the electromagnetic unit to be powered on when it is determined that a pedestrian has been collided. The electromagnetic unit is configured to: generate an electromagnetic force to attract the limiting unit when powered on. The limiting unit is configured to: slide towards the electromagnetic unit under the action of the electromagnetic force, so that the first housing falls into the second housing. This is used to reduce the harm caused by the air filter to pedestrians.

Description

Technical Field

[0001] This application relates to the technical field of engine control, especially to the vehicle control technology field in vehicles, and specifically relates to a control system for an air filter and a vehicle. Background Art

[0002] With the gradual increase in the global automobile ownership, automobile accidents are also increasing day by day. Traditional automobile safety mainly focuses on the protection of passengers inside the vehicle, lacking necessary protection for pedestrians outside the vehicle.

[0003] Currently, in the case of a collision between a vehicle and a pedestrian, the pedestrian is hit and falls forward, and will hit the engine hood. As a part under the engine hood of an automobile, when a pedestrian collides with the position where the air filter is located, it will directly cause harm to the pedestrian. Summary of the Invention

[0004] This application provides a control system for an air filter and a vehicle to reduce the harm caused by the air filter to pedestrians. The technical solution of this application is as follows:

[0005] According to the first aspect involved in this application, a control system for an air filter is provided. The control system includes an air filter and a controller. The air filter includes a first housing, a second housing, an electromagnetic unit, and a limiting unit. The first housing is connected to the second housing through the limiting unit; the first housing is located above the second housing. The controller is configured to: when it is determined that a pedestrian is collided, control the electromagnetic unit to be powered on. The electromagnetic unit is configured to: when powered on, generate an electromagnetic force to attract the limiting unit. The limiting unit is configured to: under the action of the electromagnetic force, slide towards the electromagnetic unit so that the first housing falls into the second housing.

[0006] According to the above technical means, the control system for an air filter includes an air filter and a controller. The air filter includes a first housing, a second housing, an electromagnetic unit, and a limiting unit. Among them, the first housing is located above the second housing. The limiting unit is located between the first housing and the second housing.

[0007] When the controller determines that the vehicle collides with a pedestrian, it controls the electromagnetic unit so that the electromagnetic unit generates an electromagnetic force. Further, under the action of the electromagnetic force, the limiting unit slides towards the electromagnetic unit, so that the first housing falls into the second housing. In this way, when the controller determines that the vehicle has a collision and the collision is with a pedestrian, it pre-controls the first housing of the air filter to collapse into the second housing in advance. Thus, before the collided pedestrian touches the air filter, the first housing of the air filter collapses into the second housing, providing a downward buffer space for the collided pedestrian, which can effectively reduce the harm value of the impact to the pedestrian and play a better protective role for the impactee.

[0008] In a possible implementation, the air filter further includes a spring. The electromagnetic unit includes a guide rod and an electromagnet that are connected to each other. The limiting unit includes a limiting body and a permanent magnet that are connected to each other. The limiting body and the permanent magnet are provided with a guide hole that communicates with each other. A part of the guide rod extends into the guide hole. The spring is sleeved on the guide rod and is located between the permanent magnet and the electromagnet.

[0009] According to the above technical means, the limiting unit and the electromagnetic unit are connected by a spring. The resistance of the limiting unit sliding towards the electromagnetic unit 3 is increased, avoiding the first housing of the air filter from easily collapsing into the second housing under the action of other external forces (such as shaking), and improving the stability of the control system. Moreover, the limiting unit and the electromagnetic unit are always connected, maintaining the structural integrity of the air filter.

[0010] In a possible implementation, the air filter further includes a first bracket. The first bracket is respectively connected to the electromagnet and the second housing. The first bracket is configured to fix the electromagnetic unit.

[0011] According to the above technical means, the electromagnetic unit is fixed on the second housing through the first bracket, avoiding the position change of the electromagnetic unit, thereby providing the stability of the control system.

[0012] In a possible implementation, the control system further includes a power supply. The electromagnetic unit further includes a wire harness. The wire harness is connected to the electromagnet and the power supply. The power supply is configured to supply power to the electromagnet through the wire harness.

[0013] In a possible implementation, the first housing includes an upper housing and a middle housing. The upper housing is connected to the middle housing by self-tapping screws.

[0014] In a possible implementation, the limiting unit includes a first limiting plate. The limiting unit is connected to the second housing through the first limiting plate.

[0015] According to the above technical means, the position of the second housing and the first housing is kept stable through the limiting unit.

[0016] In a possible implementation, the limiting unit further includes a second limiting plate; the limiting unit is connected to the middle housing through the second limiting plate.

[0017] According to the above technical means, the position of the second housing and the first housing is kept stable through the limiting unit.

[0018] In a possible implementation, a guide groove is provided on the inner side surface of the second housing, and a middle housing limiting boss that cooperates with the guide groove is provided on the outer side surface of the first housing. The middle housing limiting boss can slide along the guide groove.

[0019] According to the above technical means, the air filter can be flexibly placed through the second bracket.

[0020] According to a second aspect of the present application, a vehicle is provided, including a controller, a power source, and a control system as in the first aspect; the power source is respectively connected to the controller and the air filter; the controller is configured to control the power source to be powered on when it is determined that a pedestrian is collided; the power source is configured to supply power to the electromagnetic unit when powered on, so that the first housing collapses into the second housing.

[0021] The control system of the air filter provided by the present application brings the following beneficial effects: The control system of the air filter includes an air filter and a controller. The air filter includes a first housing, a second housing, an electromagnetic unit, and a limiting unit. Among them, the first housing is located above the second housing. The limiting unit is located between the first housing and the second housing.

[0022] When the controller determines that the vehicle collides with a pedestrian, it controls the electromagnetic unit to generate an electromagnetic force. Further, under the action of the electromagnetic force, the limiting unit slides towards the electromagnetic unit, so that the first housing falls into the second housing. In this way, when the controller determines that the vehicle has a collision and the collision is with a pedestrian, it pre-controls the first housing of the air filter to collapse into the second housing. Thus, before the collided pedestrian touches the air filter, the first housing of the air filter collapses into the second housing, providing a downward buffer space for the collided pedestrian, which can effectively reduce the injury value caused by the impact and play a better protective role for the impactee.

[0023] It should be noted that the technical effects brought by the implementation manner of the second aspect can refer to the technical effects brought by the corresponding implementation manner in the first aspect, which will not be elaborated here.

[0024] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of a control system of an air filter provided by an embodiment of the present application;

[0026] Figure 2 It is one of the partial structural diagrams of the air filter provided by an embodiment of the present application;

[0027] Figure 3 It is the second of the partial structural diagrams of the air filter provided by an embodiment of the present application;

[0028] Figure 4 It is a schematic structural diagram of an air filter provided by an embodiment of the present application;

[0029] Figure 5 This is a flowchart of the control method for the air filter provided by the embodiments of the present application. Detailed implementation manners

[0030] To enable those of ordinary skill in the art to better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0031] It should be noted that the terms "first", "second", etc. in the specification, claims and drawings of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order different from those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0032] Briefly introduce the application scenarios involved in the present application

[0033] With the gradual increase in the global automobile ownership, automobile accidents are also increasing day by day. Traditional automobile safety mainly focuses on the protection of passengers in the vehicle, and lacks necessary protection for pedestrians outside the vehicle.

[0034] Currently, in the case of a collision between a vehicle and a pedestrian, the pedestrian is hit and falls forward, and will hit the engine hood. As a part under the engine hood of an automobile, the air filter will directly cause harm to the pedestrian when the pedestrian collides with the position where the air filter is located.

[0035] In some technologies, when a collision occurs, the air filter mounting bracket will be stressed and collapse, and the air filter as a whole will move downward, providing a downward buffer space for the impact, thereby reducing the harm caused by the impact on the pedestrian. However, this technical solution is based on the impact force of the pedestrian during a collision to collapse the bracket. The pedestrian has already been harmed when colliding with the air filter. After the collapse, it can only reduce this harm to a certain extent, and the protection effect on the pedestrian remains to be discussed.

[0036] In view of the above problems, as Figure 1 shown, the embodiments of the present application provide a control system 100 for an air filter. The control system 100 includes an air filter 101 and a controller 102. The air filter 101 includes a first housing 201, a second housing 202, an electromagnetic unit 203, and a limiting unit 204.

[0037] The first housing 201 is connected to the second housing 202 through the limiting unit 204.

[0038] In some embodiments, the filter element is located in the first housing. The first housing 201 is located above the second housing 202. The limiting unit 204 is located between the first housing 201 and the second housing 202.

[0039] In some embodiments, both the first housing 201 and the second housing 202 are plastic housings. The length and width of the second housing 202 are both greater than those of the first housing 201.

[0040] In some embodiments, the limiting unit 204 is directly connected to the electromagnetic unit 203.

[0041] In another case, the limiting unit 204 is not directly connected to the electromagnetic unit 203.

[0042] In some embodiments, the electromagnetic unit 203 can be connected to the second housing 202, can be connected to the first housing 201, and can also be connected to other devices in the vehicle.

[0043] In some embodiments, the electromagnetic unit 203 is an electrical component. As Figure 2 shown, the electromagnetic unit 203 has an electromagnet 2031, a wire harness 2032, and a guide rod 2033. Among them, the electromagnet 2031 and the wire harness 2032 are formed by welding or plug-in assembly, and the guide rod 2033 and the electromagnet 2031 are formed by welding or assembly.

[0044] In some embodiments, the limiting unit 204 can be one or more, the electromagnetic unit 203 can be one or more, and the number of the limiting unit 204 is the same as that of the electromagnetic unit 203.

[0045] The controller 102 is configured to: control the electromagnetic unit 203 to be powered on when it is determined that a pedestrian has been collided.

[0046] In some embodiments, the vehicle is equipped with multiple sensors. The controller 102 determines whether the vehicle has collided with a pedestrian when obtaining data from the multiple sensors, and controls the power supply to supply power to the electromagnetic unit 203 when it is determined that a pedestrian has been collided.

[0047] Exemplarily, taking the vehicle equipped with a speed sensor and an image sensor as an example. The controller 102 determines that the vehicle has collided through the speed sensor, and determines whether a collision with a pedestrian has occurred through the image sensor.

[0048] In some embodiments, the vehicle is equipped with a camera. The controller 102 determines whether the vehicle has collided with a pedestrian through the camera.

[0049] Exemplarily, the controller 102 may be an electronic control unit (ECU).

[0050] In another case, when the vehicle is traveling normally, the vehicle checks whether a collision has occurred through sensors. If no collision has occurred, the electromagnetic unit 203 is not powered on, and the limiting unit 204 provides a supporting force for the first housing 201 to ensure the normal function of the air filter. When a collision occurs to the vehicle and the controller 102 determines that the vehicle has collided with a non-pedestrian, the electromagnetic unit 203 is not powered on. Since the electromagnetic unit 203 is not powered on, the position of the limiting unit 204 does not change, and the limiting unit 204 provides a supporting force for the first housing 201 of the air filter 101 to ensure the normal filtering function of the air filter 101. Thus, even in the case of a collision, but if no pedestrian is hit, the air filter 101 does not make any adjustment. In this way, there is no need to repair the air filter 101, and the vehicle repair cost can be reduced.

[0051] It should be noted that during the vehicle driving process, the electromagnetic unit 203 is not powered on. The electromagnetic unit 203 has no electromagnetic force.

[0052] The electromagnetic unit 203 is configured to generate an electromagnetic force to attract the limiting unit 204 when powered on.

[0053] In some embodiments, the electromagnetic force is greater than the sum of the friction force between the limiting unit 204 and the first housing 201 and the friction force between the limiting unit 204 and the second housing 202.

[0054] The limiting unit 204 is configured to slide towards the electromagnetic unit 203 under the action of the electromagnetic force, so that the first housing 201 falls into the second housing 202.

[0055] It can be understood that the control system 100 of the air filter provided in the embodiments of the present application includes the air filter 101 and the controller 102. The air filter 101 includes a first housing 201, a second housing 202, an electromagnetic unit 203, and a limiting unit 204. Among them, the first housing 201 is located above the second housing 202. The limiting unit 204 is located between the first housing 201 and the second housing 202.

[0056] When the controller 102 determines that the vehicle collides with a pedestrian, it controls the electromagnetic unit 203 so that the electromagnetic unit 203 generates an electromagnetic force. Further, under the action of the electromagnetic force, the limiting unit 204 slides towards the electromagnetic unit 203, so that the first housing 201 falls into the second housing 202. In this way, when the controller determines that the vehicle has a collision and the collision is with a pedestrian, it pre-controls the first housing 201 of the air filter 101 to collapse into the second housing 202. Thus, before the collided pedestrian touches the air filter 101, the first housing 201 of the air filter 101 collapses into the second housing 202, providing a downward buffer space for the collided pedestrian, which can effectively reduce the injury value caused by the impact and play a better protective role for the striker.

[0057] In one design, to improve the stability of the control system 100. As Figure 3 shown, the air filter 101 further includes a spring 205. The electromagnetic unit 203 includes a guide rod 2033 and an electromagnet 2031 that are connected to each other. The limiting unit 204 includes a limiting body 2045 and a permanent magnet 2042 that are connected to each other. The limiting body 2045 and the permanent magnet 2042 are provided with a mutually communicating guide hole 2041. Part of the guide rod extends into the guide hole 2041. The spring 205 is sleeved on the guide rod 2033 and is located between the permanent magnet 2042 and the electromagnet 2031.

[0058] In some embodiments, the electromagnet 2031 generates an electromagnetic force when energized, and the electromagnet 2031 attracts the permanent magnet 2042. Among them, the electromagnetic force is greater than the sum of the elastic force of the spring 205, the friction between the limiting unit 204 and the second housing 202, and the friction between the limiting unit 204 and the first housing 201.

[0059] It should be noted that when the electromagnetic unit 203 is not energized, the spring 205 is in a non-compressed state. Figure 2 and Figure 3 are both partial schematic diagrams of the air filter 101.

[0060] It can be understood that the limiting unit 204 and the electromagnetic unit 203 are connected by the spring 205. This increases the resistance of the limiting unit 204 to slide towards the electromagnetic unit 203, and avoids the first housing 201 of the air filter 101 from easily collapsing into the second housing 202 under the action of other external forces (such as shaking), improving the stability of the control system 100. And, the limiting unit 204 and the electromagnetic unit 203 are always connected, maintaining the structural integrity of the air filter 101.

[0061] In one design, in order to enable the electromagnetic unit 203 to be powered on, the control system 100 further includes a power supply 103, and the wire harness 2032 is connected to the power supply 103. The power supply 103 is configured to supply power to the electromagnet 2031 through the wire harness 2032.

[0062] In some embodiments, the controller 102 is connected to the power supply 103. The controller 102 controls the power supply 103 to power on or off the electromagnetic unit 203.

[0063] In other embodiments, a switch is provided in the middle of the wire harness 2032. The controller 102 controls the on and off of the switch to control the power supply 103 to power on or off the electromagnetic unit 203.

[0064] In one design, in order to improve the stability of the control system 100. As Figure 2 shown, the air filter 101 further includes a first bracket 206, and the first bracket 206 is respectively connected to the electromagnet 2031 and the second housing 202.

[0065] The first bracket 206 is configured to fix the electromagnetic unit 203.

[0066] Specifically, as Figure 2 shown, a first bracket 206 is provided at both ends of the electromagnet 2031.

[0067] In one embodiment, the first bracket 206 is a part of the second housing 202. The electromagnetic unit 203 is fixed to the second housing 202 through the first bracket 206.

[0068] It can be understood that the electromagnetic unit 203 is fixed to the second housing through the first bracket 206, avoiding the position change of the electromagnetic unit 203, thereby providing the stability of the control system 100.

[0069] In one design, as Figure 4 shown, the first housing 201 includes an upper housing 207 and a middle housing 208. The upper housing 207 is connected to the middle housing 208 by self-tapping screws.

[0070] In some embodiments, the filter element is located in the upper housing 207. The middle housing 208 is connected to the second housing 202 (which can also be called the lower housing 202) through the limiting unit 204. In this way, the overall size of the air filter 101 is small and the layout is compact.

[0071] In one design, as Figure 3 shown, the limiting unit 204 includes a first limiting plate 2043, and the limiting unit 204 is connected to the second housing 202 through the first limiting plate 2043.

[0072] Specifically, as Figure 3As shown, the first limiting plate 2043 is the lower convex platform of the limiting plate. The inner side of the limiting unit 204 is connected to the second housing 202 through the lower convex platform 2043 of the limiting plate. The outer side of the limiting unit 204 is connected to the guiding rod 2033 of the electromagnetic unit 203 through the guiding hole 2041. The spring 205 is assembled on the guiding rod 2033.

[0073] It can be understood that the limiting unit 204 is fixed by the first limiting plate 2043.

[0074] In one design, as Figure 3 shown, the limiting unit 204 further includes a second limiting plate 2044. The limiting unit 204 is connected to the middle housing 207 through the second limiting plate 2044.

[0075] Specifically, as Figure 3 shown, the second limiting plate 2044 is the upper convex platform 2044 of the limiting plate. The middle housing 207 is connected to the upper convex platform 2044 of the limiting plate on the upper side of the limiting unit 204.

[0076] It can be understood that the middle housing 208 is fixed by the second limiting plate 2044.

[0077] In one design, the middle housing 208 includes a middle housing limiting convex platform 2081, and the second housing 202 includes a lower housing limiting convex platform 2021.

[0078] Specifically, as Figure 3 shown, the middle housing limiting convex platform 2081 and the lower housing limiting convex platform 2021 are connected and matched to ensure that the middle housing 208 of the air filter 101 is assembled in place with the second housing 202.

[0079] In one design, as Figure 3 shown, the second housing 202 further includes a guiding groove 2022. The guiding groove 2022 is used to guide the sliding direction of the first housing 201 when the first housing 201 falls.

[0080] Specifically, the guiding groove 2022 is provided on the inner side surface of the second housing 202, and the middle housing limiting convex platform 2081 that cooperates with the guiding groove 2022 is provided on the outer side surface of the first housing 201, and the middle housing limiting convex platform 2081 can slide along the guiding groove 2022.

[0081] In some embodiments, the second shell 202 includes a limiting hole, which passes through the side wall of the second shell 202 and is connected to the guide groove 2022. Under normal operation of the vehicle, a portion of the limiting unit 204 passes through the limiting hole and is located below the first shell 201, limiting the first shell 201 so that the first shell 201 cannot fall. When the vehicle collides with a pedestrian, the electromagnetic unit 203 is energized, and the limiting unit 204 avoids the first shell 201, so that the middle shell limiting boss 2081 can slide along the guide groove 2022. In some embodiments, the main shell of the second shell 202, the first bracket 206, the lower shell limiting boss 2021 and the guide groove 2022 are an integral part of an injection molding.

[0082] The first limiting plate 2043 , the second limiting plate 2044 and the guide hole 2041 are integrally injection-molded with plastic and then assembled with the permanent magnet 2042 .

[0083] The upper housing 207 is a plastic part that is integrally injection molded.

[0084] In one design, Figure 4 As shown, the air filter 101 is fixed to the engine compartment via a second bracket 104 .

[0085] In other embodiments, the air filter 101 is fixed to a part of the transmission via a second bracket 104 .

[0086] In addition, in order to better understand the air filter 101 in the embodiment of the present application, Figure 4 The limiting unit 204, the electromagnet 2031 and the first bracket 206 are also shown.

[0087] The air filter 101 may also be placed on other parts through the second bracket 104 , and the embodiment of the present application does not limit the specific location where the air filter 101 is placed.

[0088] It should be noted that the number of the second brackets 104 can be 4 or 6, which is not limited in the embodiment of the present application.

[0089] It can be understood that the air filter 101 can be fixed to a part in the front cabin of the vehicle through the second bracket 104, and the installation is flexible.

[0090] In some implementations, in order to better illustrate the working principle of the air filter 101 provided in the embodiment of the present application, as shown in FIG. Figure 5 As shown, a control method for an air filter is shown, including: S1-S6.

[0091] S1. The sensor detects that the vehicle is in a normal driving state.

[0092] As a possible implementation, the controller 102 detects that the vehicle is in a normal driving state through a speed sensor. Under normal driving conditions, the electromagnet 2031 on the electromagnetic unit 203 is fixed to the second housing 202 through the first mounting bracket 206. The first housing 201 is connected to the second housing 202 through the limiting unit 204.

[0093] S2. Determine whether the vehicle has collided through a sensor.

[0094] S3. In the case of determining that the vehicle has collided, determine whether the vehicle has collided with a pedestrian.

[0095] S4. In the case of determining that the vehicle has collided with a pedestrian, energize the electromagnetic unit 203.

[0096] As a possible implementation, when the controller 102 determines that the vehicle has collided with a pedestrian, it controls the electromagnet 2031 to be energized and generates an electromagnetic force.

[0097] In another case, when it is determined that the vehicle has not collided with a pedestrian, the electromagnetic unit 203 is not energized.

[0098] S5. The first housing 201 collapses into the second housing 202.

[0099] Specifically, when the vehicle collides with a pedestrian, the electromagnet 2031 is energized and generates an electromagnetic force. Since the electromagnetic force is greater than the sum of the elastic force of the spring 205, the frictional force between the limiting unit 204 and the second housing 202, and the frictional force between the limiting unit 204 and the first housing 201, the limiting unit 204 is pulled towards the electromagnet 2031. The spring 205 is compressed. Among them, the depth of the guiding hole 2041 is greater than the mating length of the limiting unit 204 and the first housing 201. The limiting unit 204 is completely pulled out through its guiding hole 2041 via the guiding rod 2033. At this time, due to the lack of support, the first housing 201 falls into the second housing 202 along the lower housing guiding groove 2022 under the action of gravity, and the air filter 101 completes the collapse, so as to achieve the purpose of protecting pedestrians.

[0100] Subsequently, after being restored by the driver or maintenance personnel, the air filter 101 works normally.

[0101] In some embodiments, the present invention provides a vehicle, including a controller 102, a power supply 103, and the air filter 101 as described above. The power supply 103 is respectively connected to the controller 102 and the air filter. The controller 102 is used to control the power supply 103 to be powered on when it is determined that a pedestrian has been collided; the power supply 103 is used to supply power to the electromagnetic unit when powered on, so that the first housing 201 collapses into the second housing 202.

Claims

1. A control system for an air filter, characterized in that, The control system includes the air filter and a controller. The air filter includes a first housing, a second housing, an electromagnetic unit, and a limiting unit; The first housing is connected to the second housing through the limiting unit; the first housing is located above the second housing; The controller is configured to: control the electromagnetic unit to be powered on when it is determined that a pedestrian has been collided with; The electromagnetic unit is configured to: generate an electromagnetic force to attract the limiting unit when powered on; The limiting unit is configured to: slide towards the electromagnetic unit under the action of the electromagnetic force, so that the first housing falls into the second housing.

2. The control system according to claim 1, wherein The air filter further includes a spring. The electromagnetic unit includes a guide rod and an electromagnet connected to each other. The limiting unit includes a limiting body and a permanent magnet connected to each other. The limiting body and the permanent magnet are provided with a communicating guide hole. Part of the guide rod extends into the guide hole. The spring is sleeved on the guide rod and is located between the permanent magnet and the electromagnet.

3. The control system according to claim 2, wherein The air filter further includes a first bracket. The first bracket is connected to the electromagnet and the second housing respectively; The first bracket is configured to fix the electromagnetic unit.

4. The control system according to claim 2, wherein The control system further includes a power source. The electromagnetic unit further includes a wire harness. The wire harness is connected to the electromagnet and the power source; the power source is configured to: supply power to the electromagnet through the wire harness.

5. The control system according to any one of claims 1-4, characterized in that, The first housing includes an upper housing and a middle housing; the upper housing is connected to the middle housing by self-tapping screws.

6. The control system according to any one of claims 1-4, characterized in that, The limiting unit includes a first limiting plate. The limiting unit is connected to the second housing through the first limiting plate.

7. The control system according to claim 5, characterized in that, The limiting unit further includes a second limiting plate; the limiting unit is connected to the middle housing through the second limiting plate.

8. The control system according to any one of claims 1-4, characterized in that, A guide groove is provided on the inner side surface of the second housing. A middle housing limiting boss that cooperates with the guide groove is provided on the outer side surface of the first housing. The middle housing limiting boss can slide along the guide groove.

9. A vehicle, characterized in that, Including a controller and a power source, and the control system according to any one of claims 1-8; The power source is respectively connected to the controller and the air filter; the controller is used to control the power source to be powered on when it is determined that a pedestrian has been collided with; the power source is used to supply power to the electromagnetic unit when powered on, so that the first housing collapses into the second housing.

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