CN111645624A - Front suspension lifting device of small car and small car comprising same - Google Patents
Front suspension lifting device of small car and small car comprising same Download PDFInfo
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- CN111645624A CN111645624A CN202010484552.XA CN202010484552A CN111645624A CN 111645624 A CN111645624 A CN 111645624A CN 202010484552 A CN202010484552 A CN 202010484552A CN 111645624 A CN111645624 A CN 111645624A
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- 239000000725 suspension Substances 0.000 title claims abstract description 77
- 230000007246 mechanism Effects 0.000 claims abstract description 45
- 239000006096 absorbing agent Substances 0.000 claims abstract description 34
- 230000035939 shock Effects 0.000 claims abstract description 34
- 230000006698 induction Effects 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims description 11
- 238000013459 approach Methods 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 5
- 230000001960 triggered effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0136—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to actual contact with an obstacle, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/018—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/06—Characteristics of dampers, e.g. mechanical dampers
- B60G17/08—Characteristics of fluid dampers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0134—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to imminent contact with an obstacle, e.g. using radar systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/20—Type of damper
- B60G2202/24—Fluid damper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/30—Height or ground clearance
- B60G2500/32—Height or ground clearance of only one vehicle part or side
- B60G2500/322—Height or ground clearance of only one vehicle part or side only front part
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention provides a front suspension lifting device of a small car and a small car comprising the same, wherein the front suspension lifting device of the small car comprises two front suspension shock absorbers, each front suspension shock absorber is provided with a telescopic part, the front suspension lifting device of the small car further comprises at least two lifters, the lifters are arranged on the front suspension shock absorbers corresponding to the car, and each lifter is used for pushing the telescopic parts of the corresponding front suspension shock absorbers to extend; the at least two trigger mechanisms are arranged corresponding to the at least two lifters, and each trigger mechanism is used for driving the corresponding lifter to lift so as to link the corresponding telescopic part to extend; the induction controller is arranged on the vehicle body and comprises a sensor and a controller which are mutually in communication connection, and the controller is in communication connection with each triggering mechanism. By adding the lifter to the front suspension part of the small passenger car, when the occurrence of rear-end collision is detected, the lifter is immediately triggered to push the front suspension to be lifted so as to lift the car head.
Description
Technical Field
The invention relates to the field of automobiles, in particular to a lifting device for a front suspension shock absorber of a miniature automobile and an automobile comprising the same.
Background
At present, when a small passenger car collides with a large truck in a rear-end collision, although the truck is provided with a rear protection device, the front bumper of the small passenger car is in limited contact with the rear protection device of the truck due to the fact that the truck is high and the rear part is long, the lap joint amount is only 100mm, and the contact area is small. The rear protection device of the truck easily sweeps or rubs the upper end of the front bumper of the small passenger car in the collision process, the situation that the front bumper is not in contact with the rear protection device or is not in contact sufficiently, and the front bumper cannot absorb the collision energy or cannot absorb the collision energy sufficiently occurs, the head of the small passenger car is extruded by the rear protection device of the truck and directly penetrates into the bottom of the large truck, and even the tail of the truck directly collides with the front windshield of the small passenger car to injure passengers in the car.
Disclosure of Invention
The invention aims to solve the problem that in the collision process of a rear-end large vehicle of a small vehicle in the prior art, an anti-collision beam or a front bumper of the small passenger vehicle cannot effectively absorb energy or the head of the small passenger vehicle penetrates into the tail of the large vehicle due to the difference of the heights of the two vehicles, so that passengers in the small passenger vehicle are injured. The invention provides a lifting device for a front suspension shock absorber of a small-sized passenger car, which is characterized in that a lifter is additionally arranged at the front suspension part of the small-sized passenger car, and when the occurrence of rear-end collision is detected, the lifter is immediately triggered to push the front suspension to be lifted so as to lift the car head.
The invention provides a lifting device for a front suspension of a miniature vehicle, which comprises two front suspension shock absorbers, wherein each front suspension shock absorber is provided with a telescopic part, and the lifting device for the front suspension of the miniature vehicle further comprises: the lifting device comprises at least two lifters, at least two lifters and a controller, wherein the at least two lifters are arranged on the front suspension shock absorber corresponding to the automobile, and each lifter is used for pushing the telescopic part of the corresponding front suspension shock absorber to extend; the at least two trigger mechanisms are arranged corresponding to the at least two lifters, and each trigger mechanism is used for driving the corresponding lifter to lift so as to link the corresponding telescopic part to extend; the vehicle body is provided with a vehicle body, the vehicle body is provided with a sensor and a controller, the sensor and the controller are in communication connection, the controller is in communication connection with each triggering mechanism, the sensor sends a collision signal to the controller, and the controller controls each triggering mechanism to start.
By adopting the scheme, when the induction controller induces collision or induces that a front vehicle is excessively close, the collision controller sends a collision signal to the controller, the controller controls the starting of each trigger mechanism, and the trigger mechanisms drive the corresponding lifters to lift so as to link the corresponding telescopic parts to extend. When the lifter applies force, the telescopic part of the front suspension shock absorber extends, the automobile frame is lifted relative to the wheels, the height of the automobile bumper on the automobile frame relative to the ground is increased, and when the automobile bumper collides with a front automobile, if the height of the tail of the front automobile is higher, the automobile bumper or the anti-collision beam after being increased cannot be knocked empty or contact insufficiently, so that the situation that the tail of the front automobile directly collides with a front windshield because the tail of the front automobile is higher than the head of a rear automobile or the automobile bumper cannot effectively absorb energy, the tail of the front automobile rubs over the upper end of the automobile bumper to collide with the head of the front automobile is avoided, and a small automobile is prevented from entering the tail of the front.
According to another specific embodiment of the invention, the front suspension lifting device of the scooter disclosed by the embodiment of the invention is characterized in that the triggering mechanism comprises a gas generator, the lifter further comprises a cylinder body, a piston and a push rod, the piston is arranged in the cylinder body, one end of the piston is connected with one end of the push rod, the end wall of the other end of the piston and the inner wall of the cylinder body form a pressure cavity, a two-way valve is arranged between the pressure cavity and the gas generator, and a gas release hole communicated with the pressure cavity is arranged on the cylinder body close to the two-way valve; when the induction controller does not detect a vehicle head collision signal, the two-way valve controls the pressure cavity to be not communicated with the gas generator and opens the gas release hole; when the induction controller detects a vehicle head collision signal, the two-way valve controls the pressure cavity to be communicated with the gas generator and closes the gas release hole, the gas generator charges gas into the pressure cavity and pushes the piston to drive the ejector rod to extend out along one end of the cylinder body so as to link the corresponding telescopic part to extend.
Adopt above-mentioned scheme, when the induction control ware detects locomotive collision signal, the induction control ware sends ignition current, gas generator detonates immediately after accepting ignition current, and then produce a large amount of high-pressure gas, high-pressure gas is by gas generator break-away two-way valve to the pressure chamber in the cylinder body, and the two-way valve that is broken-away by high-pressure gas this moment blocks up the gas escape orifice to the opposite side removal, the gas that flows to the pressure chamber does not have from the discharge makes the pressure of pressure chamber rise rapidly, and then promote the piston rebound and promote the ejector pin and stretch out along the one end of cylinder body and make the extension part extension. When the automobile normally runs, the two-way valve closes a passage between the pressure cavity and the gas generator, the air release hole is opened, and the gas in the pressure cavity does not influence the normal compression buffering function of the front suspension shock absorber from the air release hole.
According to another specific embodiment of the invention, the embodiment of the invention discloses a minitype front suspension lifting device, the two-way valve comprises a sealing valve core and a force returning mechanism which are rotationally connected with the inner wall of the cylinder body, and a through hole is arranged between the pressure cavity and the gas generator; the sealing valve core is arranged at a position close to the through hole and is driven by the force returning mechanism to extrude the through hole from the pressure cavity to the direction of the gas generation, and the extrusion surface of the sealing valve core is larger than the hole area of the through hole; when the induction controller detects a vehicle head collision signal, the gas generator generates gas to push the sealing valve core to overcome the restoring force of the restoring force mechanism to overturn to one side (the lower side of the cylinder body) close to the air release hole and block the air release hole.
By adopting the scheme, the return force mechanism enables the sealing valve core of the two-way valve to block the through hole in a normal state, the channel between the gas generator and the pressure cavity is kept to be cut off, and after the gas generator flushes the two-way valve after one collision occurs, the two-way valve can reset and can be repeatedly used for next use.
According to another specific embodiment of the invention, the embodiment of the invention discloses a front suspension lifting device of a minitype vehicle, wherein two ends of a telescopic part are respectively provided with a top seat and a base; the cylinder body is fixed on the top seat, and one end of the ejector rod, which extends out of the cylinder body, is fixed on the base; or the cylinder body is fixed on the base, and one end of the ejector rod, which extends out of the cylinder body, is fixed on the ejector seat.
Adopt above-mentioned scheme, the base can be prior art and fix the spring tray on the hydraulic cylinder body of front suspension shock absorber, and the footstock can be the structure similar with spring tray to bear the lift force of ejector pin as the fulcrum, the extension of the ejector pin through the lift makes the distance between footstock and the base lengthen, and telescopic part extension and then drive the frame and shift up promptly.
According to another embodiment of the present invention, a lift device for a front suspension of a scooter type vehicle is disclosed, in which a support part is provided on a top seat and/or a bottom seat, and an end of a push rod is welded to the support part.
By adopting the scheme, the arrangement space of the lifter can be enlarged, the bearing capacity is improved, and the lifting effect is enhanced.
According to another embodiment of the present invention, there is disclosed a front suspension lifting apparatus for a scooter, wherein the number of lifters is 4, and each front suspension damper is provided with 2 lifters.
By adopting the scheme, the frame can be ensured to be sufficiently lifted on the basis of simplifying the number of the lifters, and the cost performance is highest.
According to another embodiment of the invention, the lifting height of the lifter of the minitype front suspension fork lifting device is 150 to 200 mm.
By adopting the scheme, the maximum motion envelope stroke of the shock absorber is generally 100-250mm, the contact height between the small passenger car and the tail part of the large truck is generally less than 100mm, and the lifting height of the lifter is set to be 150-200 mm, so that the front bumper or the anti-collision beam of the small passenger car can be ensured to be in full contact collision with the tail part of the large truck.
According to another specific embodiment of the invention, the embodiment of the invention discloses a minitype front suspension lifting device, the sensor is arranged at the head of the vehicle, and the sensor comprises a distance measuring sensor and a speed measuring sensor which are respectively used for detecting the relative distance from the front vehicle and the relative approaching speed.
Adopt above-mentioned scheme, the induction controller can be infrared detector to can have the range finding concurrently and test the speed the function, thereby calculate the condition that must can collide according to speed and distance, send collision signal fast in advance, lift the frame height in advance and guarantee driver's safety. If the speed measuring sensor detects that the relative speed per hour is 100km/h, and the distance measuring sensor detects that the relative distance between the small vehicle and the front vehicle is 10cm, the collision is determined to be certain.
According to another specific embodiment of the invention, the controller is a vehicle body controller module.
By adopting the scheme, the existing BCM is utilized, the sensor sends a collision signal to the BCM, and the BCM controls the trigger mechanism to start, so that the accurate control is realized and the development cost is saved.
Still provide a kart, include foretell kart front suspension lifting device.
By adopting the scheme, the head of the small car is lower, and when the small car collides with a front car, if the height of the tail of the front car is higher, danger is easy to occur. After the front suspension shock absorber lifting device of the mini car is used for lifting the car head, the car bumper or the anti-collision beam of the mini car cannot be knocked to be empty or insufficiently contacted, so that the situation that the car tail of the front car directly collides with front windshield glass due to the fact that the car tail is higher than the car head of the rear car or the car bumper cannot effectively absorb energy is avoided, the car tail of the front car rubs over the upper end of the car bumper to collide with the car head, and the car is prevented from entering the car tail of the front car.
The invention has the beneficial effects that:
the utility model provides a kart front suspension lifting devices and kart, send collision signal to the controller when induction controller senses the collision or senses the front truck and excessively be close, each trigger mechanism of controller control starts, and the corresponding lifter of trigger mechanism drive lifts to the linkage corresponds telescopic part extension. When the lifter applies force, the telescopic part of the front suspension shock absorber extends, the automobile frame is lifted relative to the wheels, the height of the automobile bumper on the automobile frame relative to the ground is increased, and when the automobile bumper collides with a front automobile, if the height of the tail of the front automobile is higher, the automobile bumper or the anti-collision beam after being increased cannot be knocked empty or contact insufficiently, so that the situation that the tail of the front automobile directly collides with a front windshield because the tail of the front automobile is higher than the head of a rear automobile or the automobile bumper cannot effectively absorb energy, the tail of the front automobile rubs over the upper end of the automobile bumper to collide with the head of the front automobile is avoided, and a small automobile is prevented from entering the tail of the front.
Drawings
Fig. 1 is a schematic structural view of a front suspension lifting device of a scooter type vehicle in embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a front suspension fork lifting device of a compact car in an embodiment 1 of the invention when the car is in collision;
fig. 3 is a schematic structural view of a front suspension lifting device of a compact car according to embodiment 1 of the present invention during normal driving of the car;
fig. 4 is a schematic structural diagram of a small car according to embodiment 2 of the present invention when lifted by a front suspension fork lifting device.
Description of reference numerals:
1: a small-sized automobile; 2: large automobiles;
10: a front suspension damper; 11: a telescopic member; 111: a top seat; 112: base seat
20: a front suspension lifting device of the minitype car;
21: a lifter; 211: a cylinder body; 212: a piston; 213: a top rod; 214: a pressure chamber; 215: a two-way valve; 2151: sealing the valve core; 216: an air release hole;
22: a trigger mechanism; 221: a gas generator;
23: an induction controller;
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to these embodiments. On the contrary, the invention is described in connection with the embodiments for the purpose of covering alternatives or modifications that may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.
In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the present invention.
The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present embodiment, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present embodiment can be understood in specific cases by those of ordinary skill in the art.
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Example 1
The present invention provides a front suspension lifting device 20 of a compact car, as shown in fig. 1-3, comprising two front suspension dampers 10, each front suspension damper 10 having a telescopic part 11, the front suspension lifting device 20 further comprising: at least two lifters 21, at least two lifters 21 are arranged on the corresponding front suspension shock absorber 10 of the automobile, each lifter 21 is used for pushing the telescopic part 11 of the corresponding front suspension shock absorber 10 to extend; at least two trigger mechanisms 22, wherein the at least two trigger mechanisms 22 are arranged corresponding to the at least two lifters 21, and each trigger mechanism 22 is used for driving the corresponding lifter 21 to lift so as to link the corresponding telescopic component 11 to extend; the induction controller 23 is arranged on the vehicle body, the induction controller 23 comprises a sensor and a controller which are mutually communicated, the controller is communicated with each triggering mechanism 22, the sensor sends a collision signal to the controller, and the controller controls each triggering mechanism 22 to start.
Specifically, the telescoping component 11 may be an existing shock absorber spring and a piston rod within the shock absorber spring. The upper end of the existing piston rod is connected with an automobile frame, the lower end of the existing piston rod is inserted into a hydraulic cylinder body, and the hydraulic cylinder body is connected with wheels; the upper ends of the two ends of the existing shock absorber springs are connected with spring upper supports (the springs of the front suspension shock absorbers are lifting lugs connected with a compression buffer plate or a frame), and the lower ends of the springs are connected with spring trays fixedly connected with the hydraulic cylinder bodies. That is, the upper end of the existing telescopic part 11 can extend or contract relative to the hydraulic cylinder, when the telescopic part 11 extends, the vehicle frame is lifted up relative to the wheels, when the telescopic part 11 contracts, the vehicle frame is lifted up or close to the wheels, the impact in the vehicle height direction is buffered, and in the buffering process, the vehicle frame is lifted up or close to the wheels.
The conventional front suspension damper 10 is mounted on each of the left and right wheels, and the lifters 21 are respectively provided on the front suspension dampers 10 of the left and right wheels and push the telescopic members 11 of the corresponding front suspension dampers 10 to extend. When the lifter 21 applies force, the telescopic part 11 extends, the automobile frame is lifted relative to the wheels, the height of the automobile bumper on the automobile frame relative to the ground is increased, when the automobile collides with the front automobile, if the height of the tail of the front automobile is higher, the automobile state after the automobile is lifted is as shown in figure 4 in embodiment 2, the bumper or the front anti-collision beam of the small automobile 1 cannot be knocked out or insufficiently contacted due to too low height, and therefore the situation that the automobile bumper cannot effectively absorb energy due to the fact that the tail of the front automobile is higher than the head of the rear automobile and directly collides with a front windshield or rubs the upper end of the automobile bumper to collide with the head of the automobile is avoided. The number of the lifters 21 is at least two, each of the two wheels is one, and the number of the lifters 21 may be more, and a plurality of the lifters 21 are installed on the front suspension 10 of one wheel, and the number of the lifters 21 is not limited in this embodiment, and can be selected by those skilled in the art according to design requirements.
The trigger mechanism 22 may be a gas generating device, a hydraulic ejector, or a magnetic device, as long as it can instantaneously generate a force enough to lift the vehicle frame and extend the lift 21 in the prior art.
The induction controller 23 includes a sensor and a controller communicatively connected to each other. The sensor is used for sensing the automobile collision, an existing airbag collision sensing device can be utilized, or an optical ranging sensor which is independently arranged at the front end of the automobile is used for detecting the relative distance between the sensor and the front automobile, and when the distance between the sensor and the front automobile is too close (for example, the relative distance is 10cm), the sensor is triggered and sends a collision signal; the controller may be a switch or a trigger controller separately provided and in communication with the trigger mechanism 22, the controller controls the trigger mechanism 22 to be turned on when the sensor sends an on signal, and the controller may also control the trigger mechanism 22 to be turned on by using the existing body controller BCM. The model of the sensor and the controller, or the inductive switch integrating the sensor and the controller, may be selected by those skilled in the art according to design requirements, and the embodiment is not particularly limited thereto.
By adopting the scheme, when the sensing controller 23 senses collision or senses that a front vehicle is excessively close, a collision signal is sent to the controller, the controller controls the starting of each trigger mechanism 22, and the trigger mechanisms 22 drive the corresponding lifters 21 to lift so as to link the corresponding telescopic parts 11 to extend. When the lifter 21 applies force, the telescopic part 11 of the front suspension shock absorber 10 extends, the automobile frame is lifted relative to the wheels, the height of the automobile bumper on the automobile frame relative to the ground is increased, and when the automobile bumper collides with a front automobile, if the height of the tail of the front automobile is higher, the automobile bumper or an anti-collision beam after being lifted cannot be empty or insufficiently contacted, so that the phenomenon that the tail of the front automobile directly collides with a front windshield because the tail of the front automobile is higher than the head of a rear automobile or the automobile bumper cannot effectively absorb energy, the tail of the front automobile rubs over the upper end of the automobile bumper to collide with the head of the front automobile is avoided, and a small automobile is prevented from entering the tail of the front automobile.
In a preferred embodiment, as shown in fig. 2-3, the triggering mechanism 22 includes a gas generator 221 (e.g., a single-stage or multi-stage "boosting" gas generator in the prior art), the lift 21 further includes a cylinder 211, a piston 212 and a ram 213, the piston 212 is disposed in the cylinder 211, one end of the piston 212 is connected to one end of the ram 213, the end wall of the other end forms a pressure chamber 214 with the inner wall of the cylinder 211, a two-way valve 215 is disposed between the pressure chamber 214 and the gas generator 221, and a release hole 216 communicating with the pressure chamber 214 is disposed on the cylinder 211 near the two-way valve 215.
Specifically, when the vehicle head collision signal is not detected by the induction controller 23, the two-way valve 215 controls the pressure chamber 214 not to be communicated with the gas generator 221 and opens the air release hole 216; when the induction controller 23 detects a head collision signal, the two-way valve 215 controls the pressure chamber 214 to communicate with the gas generator 221 and close the gas release hole 216, and the gas generator 221 charges gas into the pressure chamber 214 and pushes the piston 212 to drive the rod 213 to extend out along one end of the cylinder body 211 so as to link the corresponding telescopic component 11 to extend.
More specifically, as shown in fig. 2, when the induction controller 23 detects a frontal collision signal, the induction controller 23 sends an ignition current, the gas generator 221 is ignited immediately after receiving the ignition current, and then generates a large amount of high-pressure gas, the high-pressure gas flows from the gas generator 221 to the pressure chamber 214 in the cylinder 211 by opening the two-way valve 215, and the two-way valve 215 which is opened by the high-pressure gas moves to the other side (i.e. the lower side in fig. 2) to block the air release hole 216, and the gas flowing to the pressure chamber 214 is not discharged, so that the pressure in the pressure chamber 214 is rapidly increased, and then the piston 212 is pushed to move upwards and the push the rod 213 to extend along one end of the cylinder 211 to extend the telescopic.
As shown in fig. 3, when the vehicle is running normally, the two-way valve 215 closes the passage between the pressure chamber 214 and the gas generator 221, and the relief hole 216 opens, and the gas in the pressure chamber 214 flows from the relief hole 216 without affecting the normal compression cushioning function of the front suspension damper 10.
It should be understood that the lower end of the cylinder 211 is provided with a necessary limiting portion (a specific limiting structure is not shown in fig. 2 and 3) to limit the piston 212 from moving downward excessively to interfere with the opening and closing of the two-way valve 215, and a corresponding limiting structure is also provided between the cylinder 211 and the gas generator 221 to limit the two-way valve 215 from opening to the side of the gas generator 221, so as to prevent the two-way valve 215 from turning over to the gas generator 221 when the piston 212 moves downward to affect the effect of the lift 21 during impact lifting. The specific structure of the two-way valve 215 may be selected from other air valve switches with the same function in the prior art according to actual design requirements, and this embodiment is not limited in this respect.
In a preferred embodiment, as shown in fig. 3, the two-way valve 215 includes a sealing spool 2151 rotatably coupled to an inner wall of the cylinder 211 and a return mechanism, and a through hole is provided between the pressure chamber 214 and the gas generator 221; the seal valve member 2151 is disposed close to the through hole, and is driven by the return force mechanism to press the through hole from the pressure chamber 214 in the direction in which gas is generated, and the pressing surface of the seal valve member 2151 is larger than the hole area of the through hole.
Specifically, as shown in fig. 2, when the vehicle collision signal is detected by the induction controller 23, the gas generator 221 generates gas to push the seal valve 2151 to flip to the side close to the gas release hole 216 (the lower side of the cylinder 211) against the restoring force of the restoring mechanism and block the gas release hole 216.
More specifically, the returning mechanism may be a torsion spring or the like, so that the sealing valve core 2151 of the two-way valve 215 blocks the through hole in a normal state, the passage between the gas generator 221 and the pressure chamber 214 is kept blocked, and after the gas generator 221 flushes the two-way valve 215 after a collision occurs, the two-way valve 215 can be reset and reused for the next use (the returning mechanism is a common structure in the prior art and has a small size, and the returning mechanism is not shown in fig. 3 and 4).
In a preferred embodiment, as shown in fig. 1, both ends of the telescopic member 11 are respectively provided with a top seat 111 and a bottom seat 112; the cylinder body 211 is fixed on the top seat 111, and one end of the top rod 213 extending out of the cylinder body 211 is fixed on the base 112; alternatively, the cylinder 211 is fixed to the base 112, and one end of the rod 213 extending out of the cylinder 211 is fixed to the top base 111.
Specifically, fig. 1 shows an embodiment in which the cylinder 211 is fixed to the top base 111, and one end of the rod 213 extending out of the cylinder 211 is fixed to the base 112, the base 112 may be a spring tray fixed to the hydraulic cylinder 211 of the front suspension 10 in the related art, and the top base 111 may have a structure similar to the spring tray to receive the lifting force of the rod 213 as a fulcrum, so that the implementation of the function is not affected after the lifter 21 is turned over, and in both embodiments, the distance between the top base 111 and the base 112 is increased by the extension of the rod 213 of the lifter 21, that is, the telescopic member 11 is extended.
For example, the telescopic member 11 is a shock absorber spring and a piston rod in the shock absorber spring, the base 112 is a spring tray on a cylinder block of the front suspension shock absorber 10, and the top 111 is a tray provided at a tip end of the piston rod. The extension of the top rod 213 of the lifter 21 lengthens the distance between the top seat 111 and the base 112, at this time, the wheel is kept stationary on the ground in the vehicle height direction, the hydraulic cylinder body is arranged on the wheel, the spring tray is fixedly arranged on the hydraulic cylinder body, the three are stationary in the vehicle height direction, the top seat 111 drives the piston rod to move upward relative to the spring tray and the hydraulic cylinder body, and further drives the vehicle frame to move upward.
In a preferred embodiment, a support part is provided on the top seat 111 and/or the bottom seat 112, and the end of the top rod 213 is welded with the support part.
By adopting the scheme, the arrangement space of the lifter 21 can be enlarged, the bearing capacity is improved, and the lifting effect is enhanced.
In a preferred embodiment, the lift 21 includes 4, and 2 lifts 21 are provided on each front suspension shock absorber 10.
By adopting the scheme, the frame can be ensured to be sufficiently lifted on the basis of simplifying the number of the lifters 21, and the cost performance is highest.
In a preferred embodiment, the lift height of the lift 21 is 150 to 200 mm.
By adopting the scheme, the maximum motion envelope stroke of the shock absorber is generally 100-250mm, the contact height between the small passenger car and the tail part of the large truck is generally less than 100mm, and the lifting height of the lifter 21 is set to be 150-200 mm, so that the front bumper or the anti-collision beam of the small passenger car can be ensured to be in full contact collision with the tail part of the large truck.
In a preferred embodiment, the sensor is provided at the vehicle head, and the sensor includes a distance measurement sensor and a speed measurement sensor for detecting a relative distance from the vehicle head and a relative approach speed, respectively.
Specifically, the induction controller 23 may be an infrared detector, so as to have the functions of distance measurement and speed measurement, and thus calculate the collision condition according to the speed and the distance. If the speed measuring sensor detects that the relative speed per hour is 100km/h, and the distance measuring sensor detects that the relative distance between the small vehicle and the front vehicle is 10cm, the collision is determined to be certain.
For example, an LDM301 infrared distance measuring sensor, and an LM567 infrared speed measuring sensor, and calculates a relative approaching speed and a relative distance through a micro-computing unit of a vehicle Body Controller (BCM) to make a judgment and send a collision signal.
By adopting the scheme, the collision condition can be accurately judged, the collision signal can be sent out quickly in advance, and the vehicle frame is lifted in advance to ensure the safety of a driver.
In a preferred embodiment, the controller is a vehicle body controller module.
By adopting the scheme, the existing BCM is utilized, the sensor sends a collision signal to the BCM, and the BCM controls the trigger mechanism 22 to start, so that accurate control is realized and the development cost is saved.
Example 2
There is provided a small car 1, as shown in fig. 4, including the front suspension raising apparatus for a small car in embodiment 1.
Specifically, fig. 4 shows a state where the front end of the small car 1 is lifted by the small car front suspension shock absorber lifting device in a collision, and the height of the rear end of the large car 2 in fig. 4 is kept at the same height as the height of the front end of the small car 1 after the front end of the small car 1 is lifted, so that the contact area of the front bumper or the front impact beam of the small car 1 in a re-collision can be ensured.
By adopting the scheme, after the head of the car is lifted by using the lifting device 10 for the front suspension shock absorber of the small car, the car bumper or the anti-collision beam of the small car cannot be knocked empty or contact insufficiently, so that the situation that the front car tail is higher than the rear car head and directly collides with the front windshield because of the fact that the front car tail is higher than the rear car head is avoided, or the car bumper cannot effectively absorb energy, the front car tail rubs over the upper end of the car bumper and collides with the head, and the small car is prevented from entering the front car tail.
While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more detailed description of the invention, taken in conjunction with the specific embodiments thereof, and that no limitation of the invention is intended thereby. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a front suspension lifting device for scooter, includes two front suspension shock absorbers, every the front suspension shock absorber has telescopic part, its characterized in that, front suspension lifting device for scooter still includes:
the at least two lifters are arranged on the front suspension shock absorbers corresponding to the automobile, and each lifter is used for pushing the telescopic parts of the corresponding front suspension shock absorbers to extend;
the at least two trigger mechanisms are arranged corresponding to the at least two lifters, and each trigger mechanism is used for driving the corresponding lifter to lift so as to link the corresponding telescopic part to extend;
the vehicle body is provided with a vehicle body, the vehicle body is provided with a sensing controller, the sensing controller is arranged on the vehicle body and comprises a sensor and a controller which are mutually communicated and connected, the controller is communicated and connected with each triggering mechanism, the sensor sends a collision signal to the controller, and the controller controls each triggering mechanism to start.
2. The device for lifting a front suspension of a scooter according to claim 1, wherein the triggering mechanism comprises a gas generator, the lifter further comprises a cylinder, a piston and a ram, the piston is disposed in the cylinder, one end of the piston is connected with one end of the ram, the end wall of the other end of the piston forms a pressure chamber with the inner wall of the cylinder, a two-way valve is disposed between the pressure chamber and the gas generator, and a gas release hole communicated with the pressure chamber is disposed on the cylinder at a position close to the two-way valve; wherein,
when the induction controller does not detect a vehicle head collision signal, the two-way valve controls the pressure cavity to be not communicated with the gas generator and opens the gas release hole;
when the induction controller detects a vehicle head collision signal, the two-way valve controls the pressure cavity to be communicated with the gas generator and closes the gas release hole, and the gas generator charges gas into the pressure cavity and pushes the piston to drive the ejector rod to extend out along one end of the cylinder body so as to link the corresponding telescopic part to extend.
3. The front suspension lift system of a scooter type vehicle according to claim 2, wherein said two-way valve includes a seal spool rotatably connected to an inner wall of said cylinder and a return mechanism, and a through hole is provided between said pressure chamber and said gas generator; and,
the sealing valve core is arranged at a position close to the through hole and is driven by a force returning mechanism to extrude the through hole from the pressure cavity to the direction of the gas generation, and the extrusion surface of the sealing valve core is larger than the hole area of the through hole;
when the induction controller detects a vehicle head collision signal, the gas generator generates gas to push the sealing valve core to overcome the restoring force of the restoring force mechanism to overturn to one side close to the air release hole and block the air release hole.
4. A front suspension lifting device for a scooter according to claim 2, wherein the telescopic member is provided at both ends thereof with a top seat and a bottom seat, respectively;
the cylinder body is fixed on the top seat, and one end of the ejector rod, which extends out of the cylinder body, is fixed on the base;
or the cylinder body is fixed on the base, and one end of the ejector rod, which extends out of the cylinder body, is fixed on the ejector seat.
5. A front microshutter suspension lifting device according to claim 4, characterized in that a support part is provided on the top and/or bottom seat, and the end of the push rod is welded to the support part.
6. A miniature front suspension lifting apparatus as set forth in any of claims 1-3 wherein said lifters comprise 4, and 2 of said lifters are provided on each of said front suspension dampers.
7. A miniature front suspension lifting device according to any one of claims 1-3 wherein the lifting height of the lifter is 150 to 200 mm.
8. A front suspension lifting device for a scooter according to any one of claims 1-3, characterized in that the sensors are arranged on the front of the vehicle and comprise distance measuring sensors and speed measuring sensors for detecting the relative distance to the front vehicle and the relative approach speed, respectively.
9. Small vehicle front suspension lifting device according to one of the claims 1 to 3, characterized in that the controller is a vehicle body controller module.
10. A small-sized automobile characterized by comprising the small-sized front suspension raising apparatus according to any one of claims 1 to 9.
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| CN202010484552.XA CN111645624B (en) | 2020-06-01 | 2020-06-01 | Front suspension lifting device of small car and small car comprising same |
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| CN202010484552.XA CN111645624B (en) | 2020-06-01 | 2020-06-01 | Front suspension lifting device of small car and small car comprising same |
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| CN111645624B CN111645624B (en) | 2022-05-31 |
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| CN111645624B (en) | 2022-05-31 |
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