阅读说明：本技术 安全把手及其控制方法 (safety handle and control method thereof ) 是由 丁光学 王鑫 胡建锋 武韩 高凯 欧阳明 于 2019-08-28 设计创作，主要内容包括：本发明公开了一种安全把手,包括把手柄、把手座和平衡块,所述把手柄一端通过把手柄转轴与把手座的一端铰接,另一端设有滑杆,所述滑杆的悬置端上设有U型缺口,所述平衡块由底座和位于底座上一侧面为敞口状的盒体构成,所述盒体的另一侧面中部设有球头,平衡块上的球头抵靠在滑杆的U型缺口内,所述电磁锁止机构与把手柄的滑杆垂直临近布置,所述电磁锁止机构驱动销柱穿入或穿出所述把手柄的滑杆,本发明还公开了一种安全把手的控制方法,通过车载电脑向车身控制器发出警示信号,车身控制器向电磁锁止机构输入锁止电信号,对把手柄实施锁止动作。能够在车侧面受到碰撞初期,阻止把手柄因惯性打开门锁开启车门。(The invention discloses a safety handle, which comprises a handle, a handle seat and a balance block, wherein one end of the handle is hinged with one end of the handle seat through a handle rotating shaft, the other end of the handle is provided with a sliding rod, a U-shaped notch is arranged at the suspension end of the sliding rod, the balance block consists of a base and a box body which is positioned on the base and is in an open shape, the middle of the other side surface of the box body is provided with a ball head, the ball head on the balance block is abutted against the U-shaped notch of the sliding rod, an electromagnetic locking mechanism is vertically arranged close to the sliding rod of the handle, and a pin column is driven by the electromagnetic locking mechanism to penetrate into or penetrate out of the sliding rod of the handle. The handle can be prevented from unlocking the door due to inertia to open the door at the initial stage of collision on the side surface of the vehicle.)

1. The utility model provides a safety handle, includes handle (10), handle seat (20) and balancing piece (30), handle (10) one end is articulated through the one end of handle pivot (11) with handle seat (20), and the other end is equipped with slide bar (12), be equipped with U type breach (121) on the suspension end of slide bar (12), balancing piece (30) are vertical to be arranged on handle seat (20), balancing piece (30) and bull stick (21) normal running fit on handle seat (20), be equipped with on bull stick (21) of handle seat (20) and be used for torsional spring (22) be connected with balancing piece (30), torsional spring (22) provide elasticity and drive balancing piece (30) and support and lean on in U type breach (121) on slide bar (12), its characterized in that: still including fixing electromagnetic locking mechanism (40) on handle seat (20), electromagnetic locking mechanism (40) is close to perpendicularly with slide bar (12) of handle (10) and is arranged, be equipped with round pin post (41) on electromagnetic locking mechanism (40), be equipped with bar hole (122) on slide bar (12) of handle (10), electromagnetic locking mechanism (40) drive round pin post (41) penetrate or wear out slide bar (12) of handle (10).

2. the safety handle of claim 1, wherein: electromagnetic locking mechanism (40) still includes casing (42), solenoid (43) and reset spring (44), solenoid (43) set up the head end in casing (42), the one end of round pin post (41) is equipped with discoid step (411), step (411) support the bottom in casing (42), the other end of round pin post (41) sets up the hollow portion at solenoid (43), reset spring (44) cover is established and is located between step (411) and solenoid (43) on round pin post (41).

3. A control method of a safety handle is characterized in that: the method comprises the following steps:

(a) The vehicle-mounted computer detects the acceleration value of the vehicle body state in real time through the acceleration sensor of the vehicle body state, compares the detected acceleration value of the vehicle body state with a preset acceleration value and judges whether the detected acceleration value is greater than the preset acceleration value, if so, the step (b) is carried out;

(b) The vehicle-mounted computer sends a warning signal to the vehicle body controller, the vehicle body controller inputs a locking electric signal to the electromagnetic locking mechanism (40) after obtaining the warning signal, the electromagnetic locking mechanism (40) drives the pin column (41) to penetrate into the strip-shaped hole (122) of the sliding rod (12) of the handle (10) after obtaining the locking electric signal, the handle (10) is locked, the vehicle body controller compares the duration time of the locking action of the electromagnetic locking mechanism (40) with the preset time and judges whether the duration time is greater than the preset time, and if yes, the step (c) is carried out;

(c) when the vehicle body controller stops inputting the locking electric signal to the electromagnetic locking mechanism (40), the return spring (44) on the electromagnetic locking mechanism (40) drives the pin column (41) to return, and the locking action of the handle (10) is finished.

4. a method of controlling a safety handle as claimed in claim 3, wherein: further comprising the steps of:

(d) The vehicle body controller counts time after the locking action of the handle (10) is finished, every time the vehicle body controller counts time is N seconds, after the N seconds of timing is finished, the vehicle body controller inputs an unlocking electric signal with the duration of M seconds to the electromagnetic locking mechanism (40) to actively unlock, the active unlocking process is repeatedly cycled for P times, and the electromagnetic locking mechanism (40) drives the pin column (41) to reset after obtaining the unlocking signal.

Technical Field

The invention relates to the technical field of vehicle passive safety, in particular to a safety handle and a control method thereof.

background

In the process of driving the vehicle, even if the driving technology of the driver is better, the driver cannot ensure that no traffic accident occurs because the driver cannot prevent others from colliding with the vehicle, and the accident happens occasionally. In a traffic accident with surprise, the collided vehicles are overturned, the doors are opened, and passengers and property are thrown out of the vehicle most commonly, so that serious casualties and property loss are caused.

the side collision is the most dangerous in the collision, the injury is the largest, the lock system of the vehicle door is the most important in the collision, the opening device in the side door lock system is the door handle, the door handle comprises a handle, a handle seat and a balance block, one end of the handle is hinged with one end of the handle seat through a handle rotating shaft, the other end of the handle is provided with a sliding rod, a U-shaped notch is arranged at the suspension end of the sliding rod, the balance block is vertically arranged on the handle seat and is in rotating fit with a rotating rod on the handle seat, a torsion spring used for being connected with the balance block is arranged on the rotating rod of the handle seat, a ball head and a lock pull wire mounting hole are respectively arranged at the middle part and the bottom part of the balance block, the torsion spring provides elasticity to drive the ball head on the balance block to abut against the U-shaped notch of the sliding rod, when the side door collides, the vehicle door is firstly impacted, the handle is still due to the inertia preservation, the, the balancing piece is connected with the ball head in an integrated mode, so that the balancing piece can rotate, the lock stay wire is fixed on the lock stay wire mounting hole in the balancing piece, and the balancing piece rotates to pull the lock stay wire to open the lock mechanism.

In the prior art, in order to prevent the collision from causing the moment of inertia of the handle to unlock the door, the following technical process is generally performed on the side door unlocking system:

1. the balance device is added in the handle mechanism, when the side door is collided, the door is firstly impacted, the handle is static due to inertia storage, namely the moment of inertia of the handle is outwards caused, the moment of inertia of the balance device is inwards, so that the effect of reducing the moment of inertia of the handle is achieved, the process can obtain accurate configuration only through complex calculation, in addition, the weight of the balance device is too heavy, the collision from the side door is possibly safe, but the collision and opening risk of the side door from the side door is increased, and because when the side door is collided, the balance device of the side door directly rotates inwards to open the side door lock.

2. The sensitive piece is added on the handle to be locked, and by utilizing the characteristic that under the same collision condition, the large mass piece reacts slowly, the small mass piece reacts quickly, and at the initial stage of collision, the smaller sensitive piece is started to move under smaller acceleration, and the lock pin on the sensitive piece is expected to be inserted into the corresponding clamping groove on the balance block before the handle drives the balance block to move due to inertia, so that the rotation of the balance block is locked, the purpose of avoiding collision to open the door lock to open the door is achieved, the sensitive piece can be put into use only by accurate calculation, otherwise, the required effect cannot be achieved;

3. A groove is also arranged on the sensitive element, a boss is arranged on the balance block, and the groove on the sensitive element is expected to hook the corresponding boss on the balance block before the handle drives the balance block to move due to inertia, so that the rotation of the balance block is locked, and the aim of avoiding collision to open the door lock and unlock the vehicle door is fulfilled;

The 2 and 3 belong to the same type of safety mechanism, the safety mechanism is good in principle, and a plurality of vehicle types use the mechanism at home and abroad, but the mechanism needs to be accurately calculated, and the manufacturing process needs to be strictly controlled to achieve the expected effect. Domestic suppliers are rarely provided with this capability.

Disclosure of Invention

The invention aims to provide a safety handle and a control method thereof, which can prevent a handle from unlocking a door to open a vehicle door due to inertia at the initial stage of collision of the side surface of the vehicle.

in order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a safe handle, includes handle, handle seat and balancing piece, it is articulated with the one end of handle seat that handle pivot is passed through to handle one end, and the other end is equipped with the slide bar, the suspension of slide bar is served and is equipped with U type breach, the balancing piece is vertical to be arranged on the handle seat, the balancing piece is with the bull stick normal running fit on the handle seat, be equipped with the torsional spring that is used for being connected with the balancing piece on the bull stick of handle seat, the torsional spring provides elasticity and orders about the balancing piece and supports in the U type breach on the slide bar, still including fixing the electromagnetic locking mechanism on the handle seat, electromagnetic locking mechanism closes on perpendicularly with the slide bar of handle and arranges, be equipped with the round pin post on the electromagnetic locking mechanism, be equipped with the bar hole on the slide bar of handle, electromagnetic locking mechanism drive round pin post penetrates or wears out the slide bar of handle.

Further, electromagnetic locking mechanism still includes casing, solenoid and reset spring, solenoid sets up the head end in the casing, the one end of round pin post is equipped with discoid step, the step supports the bottom that leans on in the casing, the other end setting of round pin post is at solenoid's hollow position, reset spring cover is established and is located between step and the solenoid on the round pin post.

the invention also provides a control method of the safety handle, which comprises the following steps:

(a) the vehicle-mounted computer detects the acceleration value of the vehicle body state in real time through the acceleration sensor of the vehicle body state, compares the detected acceleration value of the vehicle body state with a preset acceleration value and judges whether the detected acceleration value is greater than the preset acceleration value, if so, the step (b) is carried out;

(b) the vehicle-mounted computer sends a warning signal to the vehicle body controller, the vehicle body controller inputs a locking electric signal to the electromagnetic locking mechanism after obtaining the warning signal, the electromagnetic locking mechanism drives the pin column to penetrate into the strip-shaped hole of the handle sliding rod after obtaining the locking electric signal, the handle is locked, the vehicle body controller compares the duration of the locking action of the electromagnetic locking mechanism with the preset time and judges whether the duration is greater than the preset time, and if the duration is greater than the preset time, the step (c) is carried out;

(c) the vehicle body controller stops inputting electric signals to the electromagnetic locking mechanism, the reset spring on the electromagnetic locking mechanism drives the pin to reset, and the locking action of the handle is finished.

preferably, the method further comprises the following steps:

(d) The vehicle body controller counts time after the handle is locked, every N seconds of the time counted by the vehicle body controller, the vehicle body controller inputs an unlocking electric signal with the duration of M seconds to the electromagnetic locking mechanism to actively unlock, the active unlocking process is repeatedly cycled for P times, and the electromagnetic locking mechanism drives the pin post to reset after obtaining the unlocking signal.

According to the technical scheme, whether the vehicle body is collided or not is judged by detecting the acceleration value of the vehicle body state through the vehicle-mounted computer, when the vehicle body is judged to be collided, the vehicle-mounted computer sends a warning signal to the vehicle-mounted controller, the vehicle-mounted controller controls the electromagnetic locking mechanism to drive the pin column to penetrate into the strip-shaped hole of the handle sliding rod, the handle is locked, the handle can be prevented from unlocking the vehicle door due to inertia of the handle in the early stage of collision of the side face of the vehicle, when the locking action lasts for a period of time, the vehicle-mounted controller stops inputting an electric signal to the electromagnetic locking mechanism, and the pin column is driven to reset by the reset spring on the electromagnetic locking mechanism.

Drawings

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is a perspective view of the handle grip of the present invention;

FIG. 4 is a perspective view of the handle base according to the present invention;

FIG. 5 is a schematic perspective view of a weight of the present invention;

FIG. 6 is a schematic perspective view of an electromagnetic locking mechanism according to the present invention;

Fig. 7 is a flowchart of a control method in the present invention.

The reference numbers illustrate: 10. a handle grip; 11. a handle spindle; 12. a slide bar; 121. a U-shaped notch; 122. a strip-shaped hole; 20. a handle base; 21. a rotating rod; 22. a torsion spring; 30. a counterbalance; 31. a base; 311. locking the pull wire mounting hole; 32. a box body; 321. a ball head; 40. an electromagnetic locking mechanism; 41. a pin; 411. a step; 42. a housing; 43. an electromagnetic coil; 44. a return spring.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

in addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a safety handle, including a handle grip 10, a handle base 20 and a balance weight 30, wherein one end of the handle grip 10 is hinged to one end of the handle base 20 through a handle grip rotating shaft 11, the other end is provided with a sliding rod 12, a U-shaped notch 121 is provided on a suspension end of the sliding rod 12, the balance weight 30 is vertically arranged on the handle base 20, the balance weight 30 is rotatably matched with a rotating rod 21 on the handle base 20, a torsion spring 22 for connecting with the balance weight 30 is provided on the rotating rod 21 of the handle base 20, the torsion spring 22 provides an elastic force to drive the balance weight 30 to abut against the U-shaped notch 121 on the sliding rod 12, the safety handle further includes an electromagnetic locking mechanism 40 fixed on the handle base 20, the electromagnetic locking mechanism 40 is vertically arranged adjacent to the sliding rod 12 of the handle grip 10, a pin 41 is provided on the electromagnetic locking mechanism 40, a bar-shaped hole 122 is provided on the sliding rod 12 of, the electromagnetic locking mechanism 40 drives the pin 41 into or out of the slide 12 of the handle grip 10. Among the above-mentioned safe handle, the balancing piece 30 comprises base 31 and the box body 32 that is located the base 31 upper flank and for opening the mouth form, and the balancing piece 30 is equipped with the through-hole on the length direction, be equipped with on the handle seat 20 and pass the bull stick 21 of balancing piece 30 through-hole, the balancing piece 30 and the bull stick 21 normal running fit on the handle seat 20, be equipped with the torsional spring 22 that is used for being connected with the box body 32 of balancing piece 30 on the bull stick 21 of handle seat 20, another side middle part of box body 32 is equipped with bulb 321, be equipped with the lock mounting hole 311 that acts as go-between that is used for placing the lock to act as go-between on the base 31 of balancing piece 30, torsional spring 22 provides elasticity and orders about bulb 31 on the. Under the condition that the side door locking mechanism is not installed, when the side door is collided, the door is firstly impacted, the handle 10 is kept static due to inertia, the handle 10 is caused to rotate relative to the door, the sliding rod 12 of the handle 10 can slide due to the rotation of the handle 10, the sliding rod 12 can drive the ball head 321 on the balance block 30 positioned in the U-shaped notch 121 of the sliding rod to rotate due to the sliding, the balance block 30 is integrally connected with the ball head 321, therefore, the balance block 30 can rotate, the locking pull wire is fixed on the locking pull wire installation hole 311 on the balance block 30, and the balance block 30 rotates to pull the locking pull wire so as to open the locking mechanism; after the side door locking mechanism is installed, when the side door is collided, the electromagnetic locking mechanism 40 can drive the pin 41 to penetrate into the strip-shaped hole 122 of the sliding rod 12 on the handle 10, the sliding of the sliding rod 12 on the handle 10 is prevented in time in the early stage of collision, so that the ball head 321 driven by the sliding of the sliding rod 12 and the balance block 30 are prevented from rotating, the balance block 30 is further prevented from rotating to pull a locking pull wire to open the lock mechanism, the handle 10 is prevented from opening the door due to inertia to the early stage of collision of the side surface of the vehicle, and when the locking action lasts for a period of time, the electromagnetic locking mechanism drives the pin to reset; through setting up the hole on the slide bar 12 to bar hole 122, prevent that the electromagnetic locking mechanism 40 that leads to because of handle 10 rotates too fast has not come to insert round pin axle 41 downtheholely, can effectual improvement reliability of locking, when the round pin axle on the electromagnetic locking mechanism 40 offsets with the end in bar hole 122, a certain position has been opened to handle 10, but handle 10 position still can not open latch mechanism this moment.

Referring to fig. 6, further, the electromagnetic locking mechanism 40 further includes a housing 42, an electromagnetic coil 43, and a return spring 44, the electromagnetic coil 43 is disposed at a head end of the housing 42, one end of the pin 41 is provided with a disc-shaped step 411, the step 411 abuts against a bottom end of the housing 42, the other end of the pin 41 is disposed at a hollow portion of the electromagnetic coil 43, and the return spring 44 is sleeved on the pin 41 and is located between the step 411 and the electromagnetic coil 43.

Referring to fig. 7, a control method of a safety handle includes the following steps:

(a) B, the vehicle-mounted computer detects the acceleration value of the vehicle body state in real time through a vehicle body state acceleration sensor, compares the detected acceleration value of the vehicle body state with a preset acceleration value and judges whether the detected acceleration value is greater than the preset acceleration value, if so, the step b is executed;

(b) the vehicle-mounted computer sends a warning signal to the vehicle body controller, the vehicle body controller inputs a locking electric signal to the electromagnetic locking mechanism 40 after obtaining the warning signal, the electromagnetic locking mechanism 40 drives the pin 41 to penetrate into the strip-shaped hole 122 of the sliding rod 12 of the handle 10 after obtaining the locking electric signal to lock the handle 10, the vehicle body controller compares the duration time of the locking action of the electromagnetic locking mechanism 40 with the preset time and judges whether the duration time is longer than the preset time, if yes, the step c is carried out;

(c) When the vehicle body controller stops inputting the locking electric signal to the electromagnetic locking mechanism 40, the return spring 44 of the electromagnetic locking mechanism 40 returns the pin 41, and the locking operation of the handle bar 10 is completed.

whether the vehicle body is collided or not is judged by detecting the acceleration value of the vehicle body state through the vehicle-mounted computer, when the vehicle body is judged to be collided, the vehicle-mounted computer sends a warning signal to the vehicle-mounted controller, the vehicle-mounted controller controls the electromagnetic locking mechanism 40 to drive the pin 41 to penetrate into the strip-shaped hole 122 of the sliding rod 12 of the handle 10, the handle 10 is locked, and the handle can be prevented from opening a door lock to open a vehicle door due to inertia at the initial stage of collision on the side surface of the vehicle; the collision of the vehicle is completed in a very short time, generally more than 100ms, the time of the maximum collision release energy is 30ms, and the rolling duration of the vehicle after a few collisions is no longer several seconds, so the preset time in the vehicle body controller is more than 10 seconds, after 10 seconds, the vehicle body controller stops inputting the locking electric signal to the electromagnetic locking mechanism 40, and the return spring 44 on the electromagnetic locking mechanism 40 drives the pin 41 to return.

Referring to fig. 7, preferably, the method further includes the following steps:

(d) The vehicle body controller counts time after the handle 10 is locked, the vehicle body controller inputs an unlocking electric signal with duration of M seconds to the electromagnetic locking mechanism 40 to actively unlock every N seconds, the active unlocking process is repeatedly cycled for P times, and the electromagnetic locking mechanism 40 drives the pin 41 to reset after obtaining the unlocking signal. Considering collision deformation, the pin 41 may be difficult to reset under the elastic force of the return spring 44, so that the vehicle stops for 1 second, the vehicle body controller inputs an unlocking electric signal with the duration of 1 second to the electromagnetic locking mechanism 40, the active unlocking process is circulated for 10 times, the door handle can be ensured to be smoothly opened, and a smooth channel is provided for external rescue after the vehicle is collided.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.