阅读说明：本技术 一种应用于汽车尾门与侧滑门自动启闭的扫腿感应方法 (Leg sweeping induction method applied to automatic opening and closing of automobile tail door and side sliding door ) 是由 高志彪 李申飞 张晓伟 赵炎铭 于 2020-06-05 设计创作，主要内容包括：一种应用于汽车尾门与侧滑门自动启闭的扫腿感应方法,在近汽车尾门或侧滑门处设置感应装置,其包括控制单元和感应单元,感应单元至少包括两个以左、右方式布局设置的感应电极；在汽车尾门和/或侧滑门区域内以用户扫腿动作为参照,感应单元接收用户扫腿产生的感应信号；控制单元完成检测感应单元物理信号的变化、识别用户的扫腿动作、判定用户的启闭汽车尾门和/或侧滑门的意图,输出决策信号到汽车尾门和/或侧滑门控制器,实现汽车尾门和/或侧滑门的自动启闭。本发明减少了整体安装面积,简化了安装方法,提高检测灵敏度和可靠性。(A leg-sweeping induction method applied to automatic opening and closing of an automobile tail door and a side sliding door is characterized in that an induction device is arranged at a position close to the automobile tail door or the side sliding door and comprises a control unit and an induction unit, wherein the induction unit at least comprises two induction electrodes which are arranged in a left-right mode; in the area of the automobile tail door and/or the side sliding door, the leg sweeping action of a user is taken as a reference, and the sensing unit receives a sensing signal generated by the leg sweeping action of the user; the control unit is used for detecting the change of the physical signal of the sensing unit, identifying the leg sweeping action of the user, judging the intention of the user for opening and closing the automobile tail door and/or the side sliding door, and outputting a decision signal to the automobile tail door and/or the side sliding door controller to realize the automatic opening and closing of the automobile tail door and/or the side sliding door. The invention reduces the whole installation area, simplifies the installation method and improves the detection sensitivity and reliability.)

1. A leg sweeping induction method applied to automatic opening and closing of an automobile tail door and a side sliding door comprises the following steps:

a. an induction setting step: the induction device is arranged at a position close to the tail door or the side sliding door of the automobile and comprises a control unit and an induction unit connected with the control unit, and the induction unit at least comprises two induction electrodes which are arranged in a left-right layout mode;

b. leg sweeping action: in the area of the automobile tail door and/or the side sliding door, the leg sweeping action of a user is taken as a reference, and the sensing unit receives a sensing signal generated by the leg sweeping action of the user;

c. leg sweeping induction step: the control unit finishes detecting the change of the physical signal of the sensing unit through the sensing electrode, recognizes the leg sweeping action of a user, judges the intention of the user to open and close the automobile tail door and/or the side sliding door, and outputs a decision signal to the automobile tail door and/or the side sliding door controller to realize the automatic opening and closing of the automobile tail door and/or the side sliding door.

2. The leg-sweeping induction method applied to the automatic opening and closing of the automobile tail door and the side sliding door according to claim 1, characterized in that: the sensing unit can be of an integrated structure or a split structure.

3. The leg-sweeping induction method applied to the automatic opening and closing of the automobile tail door and the side sliding door according to claim 1, characterized in that: the sensing device also comprises a wireless RF conversion unit which is arranged near the automobile tail door and/or side sliding door controller and connected with the automobile tail door and/or side sliding door controller through a wire harness, a decision signal is output through a wireless RF channel, and the wireless RF conversion unit converts the decision signal into a hard wire control signal to the electric door controller after receiving the decision signal.

4. The leg-sweeping induction method applied to the automatic opening and closing of the automobile tail door and the side sliding door according to claim 1, characterized in that: the sensing unit adopts a capacitance sensing unit, an infrared sensing unit or a radar sensing unit.

5. The leg-sweeping induction method applied to the automatic opening and closing of the automobile tail door and the side sliding door according to claim 4, characterized in that: the sensing electrodes of the capacitive sensing unit can be wired on a Printed Circuit Board (PCB), or can be achieved by winding a conducting wire or processing a metal conductor.

6. The leg-sweeping induction method applied to the automatic opening and closing of the automobile tail door and the side sliding door according to claim 1, characterized in that: the shape of the induction electrode of the induction unit is rectangular, square, circular, triangular, rhombic, serpentine or special-shaped.

7. The leg-sweeping induction method applied to the automatic opening and closing of the automobile tail door and the side sliding door according to claim 1, characterized in that: the induction electrode is fixed at the position close to the automobile tail door or the side sliding door in a double-faced adhesive tape bonding mode, a riveting mode or a clamping mode.

8. The leg-sweeping induction method applied to the automatic opening and closing of the automobile tail door and the side sliding door according to the claim 1 or 3, characterized in that: the step of leg-sweep sensing is performed according to the following method: two induction electrode that adopt left and right formula overall arrangement to set up sense A district and B district respectively, the centre is the M district, there is cross induction in the M district, do not have response or shield two kinds of circumstances at will, 3 effective induction area that 3 different electric capacity distributes has been constituteed in individual district, sweep the leg in-process, the leg gets into in the induction area, the capacitance value grow of induction electrode in the corresponding induction area, set for the electric capacity change threshold value, the electric capacity change amount exceeds and sets for the threshold value, it is 1 to remember this induction electrode trigger state, the electric capacity change amount does not exceed and sets for the threshold value, it is 0 to remember this induction electrode trigger state.

9. The leg-sweeping induction method applied to the automatic opening and closing of the automobile tail door and the side sliding door according to claim 8 is characterized in that a final output signal mode is as follows: the hard wire signal high-low level is directly output to the electric door controller through an OC circuit of the sensing device.

10. The leg-sweeping induction method applied to the automatic opening and closing of the automobile tail door and the side sliding door according to claim 8 is characterized in that a final output signal mode is as follows: the induction device comprises a radio frequency output chip which sends out an audio signal, the wireless RF conversion unit receives a decision signal sent out by the induction device, and then a hard wire signal is output to the electric door controller through an OC circuit of the wireless RF conversion unit.

Technical Field

The invention relates to a leg sweeping induction method applied to automatic opening and closing of an automobile tail door and a side sliding door.

Background

When a user holds articles with both hands, it is inconvenient to open and close (hereinafter referred to as "open and close") a tailgate or a side-sliding door (hereinafter referred to as "power door").

The function skirting induction system is opened and close to current being applied to car electrically operated gate designs into: adopt two parallel arrangement's wire type induction electrode to be connected to the control unit, install in the rear bumper or sideslip door below, the control unit is through detecting the electric capacity change of the induction element that the user kicked the foot action and arouse, discerns the user and kicks the foot action and judges the intention that the user opened and close the electrically operated gate, sends opening signal and gives the electrically operated gate controller.

The scheme adopts two parallel lead type induction electrodes as induction units, so that the installation space is large, the requirement on the installation environment is high, the number of installation fixed points is large, the installation process is complex, and the installation time is long; the detection method detects single capacitance change on the two induction electrodes simultaneously, and judges that the kicking action is effective, so that the risk of false detection in the detection process is high.

Therefore, how to improve the manner of arranging two parallel wires in front and back of the sensing unit in the existing solution is a problem to be solved by those in the industry.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a leg-sweeping induction method applied to automatic opening and closing of a tail door and a side sliding door of an automobile.

The invention is realized by the following steps: a leg sweeping induction method applied to automatic opening and closing of an automobile tail door and a side sliding door comprises the following steps:

a. an induction setting step: the induction device is arranged at a position close to the tail door or the side sliding door of the automobile and comprises a control unit and an induction unit connected with the control unit, and the induction unit at least comprises two induction electrodes which are arranged in a left-right layout mode;

b. leg sweeping action: in the area of the automobile tail door and/or the side sliding door, the leg sweeping action of a user is taken as a reference, and the sensing unit receives a sensing signal generated by the leg sweeping action of the user;

c. leg sweeping induction step: the control unit finishes detecting the change of the physical signal of the sensing unit through the sensing electrode, recognizes the leg sweeping action of a user, judges the intention of the user to open and close the automobile tail door and/or the side sliding door, and outputs a decision signal to the automobile tail door and/or the side sliding door controller to realize the automatic opening and closing of the automobile tail door and/or the side sliding door.

In the leg sweeping induction method applied to the automatic opening and closing of the automobile tail door and the side sliding door, the induction unit can be of an integrated structure or a split structure.

In the above-mentioned leg-sweep sensing method applied to the automatic opening and closing of the car tailgate and the side-sliding door, the sensing device further comprises a wireless RF conversion unit, which is installed near the car tailgate and/or the side-sliding door controller and connected with the car tailgate and/or the side-sliding door controller through a wire harness, and outputs a decision signal through a wireless RF channel, and the wireless RF conversion unit receives the decision signal and converts the decision signal into a hard-wire control signal to the electric door controller.

In the above leg-sweeping induction method applied to automatic opening and closing of the automobile tail door and the side sliding door, the induction unit is a capacitive induction unit, an infrared induction unit or a radar induction unit.

In the above leg-sweeping induction method applied to automatic opening and closing of the automobile tail door and the side sliding door, the induction electrodes of the capacitive induction unit can be wired on a Printed Circuit Board (PCB), or can be realized by wire winding or metal conductor processing.

In the above leg-sweep sensing method applied to automatic opening and closing of the automobile tail door and the side sliding door, the sensing electrode of the sensing unit is rectangular, square, circular, triangular, rhombic, snake-shaped or special-shaped.

In the leg sweeping induction method applied to automatic opening and closing of the automobile tail door and the side sliding door, the induction electrode is fixed at a position close to the automobile tail door or the side sliding door in a double-sided adhesive bonding mode, a riveting mode or a clamping mode.

In the above-mentioned leg-sweep induction method applied to the automatic opening and closing of the car tail door and the side sliding door, the leg-sweep induction step is performed according to the following method: two induction electrode that adopt left and right formula overall arrangement to set up sense A district and B district respectively, the centre is the M district, there is cross induction in the M district, do not have response or shield two kinds of circumstances at will, 3 effective induction area that 3 different electric capacity distributes has been constituteed in individual district, sweep the leg in-process, the leg gets into in the induction area, the capacitance value grow of induction electrode in the corresponding induction area, set for the electric capacity change threshold value, the electric capacity change amount exceeds and sets for the threshold value, it is 1 to remember this induction electrode trigger state, the electric capacity change amount does not exceed and sets for the threshold value, it is 0 to remember this induction electrode trigger state.

In the above leg-sweeping induction method applied to automatic opening and closing of the car tail door and the side sliding door, a signal mode is finally output: the hard wire signal high-low level is directly output to the electric door controller through an OC circuit of the sensing device.

In the above leg-sweeping induction method applied to automatic opening and closing of the car tail door and the side sliding door, a signal mode is finally output: the induction device comprises a radio frequency output chip which sends out an audio signal, the wireless RF conversion unit receives a decision signal sent out by the induction device, and then a hard wire signal is output to the electric door controller through an OC circuit of the wireless RF conversion unit.

Due to the adoption of the technical scheme, the induction unit changes two parallel wires which are arranged in the front and back direction in the existing solution into at least 2 induction areas which are arranged in the left and right direction, so that the whole installation area is reduced; the installation method is simplified; the identification method of the invention judges the use intention of the user for opening and closing the electrically operated door by identifying the leg sweeping action of the user to the left and right induction areas, thereby evolving into double-point induction and identification from the existing single-point induction and identification, and further improving the detection sensitivity and reliability.

Drawings

FIG. 1 is a system block diagram of an induction device applied to a leg-sweep induction method for automatically opening and closing a tail door and a side-sliding door of an automobile according to the present invention;

FIG. 2 is a schematic view of a leg sweep sensing area;

FIG. 3 is a schematic view of a leg-sweep method according to the present invention.

FIG. 4 is a schematic view of another leg-scanning method according to the present invention.

Detailed Description

In order to better understand the technical solution of the present invention, the following detailed description is made with reference to the specific embodiments and the accompanying drawings.

Referring to fig. 1, the sensing device is an assembly product composed of a control unit and a sensing unit, and the sensing unit is used for sensing capacitance variation and includes a sensing electrode a and a sensing electrode B. And the control unit is used for detecting, identifying, judging and outputting a controller (MCU). Including SOC (system on chip), LDO (low dropout regulator), LIN (local interconnect network), OC (open collector), RF (radio frequency).

The invention relates to a leg sweeping induction method applied to automatic opening and closing of an automobile tail door and a side sliding door, which comprises the following steps:

a. an induction setting step: the induction device is arranged on the inner side of the automobile tail door and/or below the side sliding door and comprises a control unit, an induction unit connected with the control unit and a wireless RF conversion unit, the wireless RF conversion unit is arranged near the automobile tail door and/or side sliding door controller and connected with the automobile tail door and/or side sliding door controller through a wire harness, a decision signal is output through a wireless RF channel, and the wireless RF conversion unit converts the decision signal into a hard wire control signal to the electric door controller after receiving the decision signal.

The sensing unit at least comprises two sensing electrodes which are arranged in a left-right mode.

The sensing unit can be of an integrated structure or a split structure.

The sensing unit adopts a capacitance sensing unit, an infrared sensing unit or a radar sensing unit.

The sensing electrodes of the capacitive sensing unit can be wired on a Printed Circuit Board (PCB) and can also be achieved by wire winding or metal conductor processing.

The induction electrodes are arranged left and right and are fixed on the automobile tail door and the side sliding door in a double-faced adhesive tape bonding installation mode, a riveting mode or a clamping mode.

The shape of the induction electrode of the induction unit is rectangular, square, circular, triangular, rhombic, serpentine or special-shaped.

b. Leg sweeping action: in the area of the automobile tail door and/or the side sliding door, the leg sweeping action of a user is taken as a reference, and the sensing unit receives a sensing signal generated by the leg sweeping action of the user;

c. leg sweeping induction step: the control unit finishes detecting the change of the physical signal of the sensing unit through the sensing electrode, recognizes the leg sweeping action of a user, judges the intention of the user to open and close the automobile tail door and/or the side sliding door, and outputs a decision signal to the automobile tail door and/or the side sliding door controller to realize the automatic opening and closing of the automobile tail door and/or the side sliding door.

Referring to fig. 3 and 4, recognizing the leg-sweep motion of the user and determining the intention of the user to open and close the tailgate and/or the side sliding door of the car are performed according to the following method,

A. induction: referring to fig. 2, two induction electrodes that adopt left and right formula overall arrangement to set up sense A district and B district respectively, the centre is M district, there is cross induction in M district, there is not response or shielding two kinds of circumstances deliberately, 3 effective induction areas that 3 different electric capacity distributes have been constituteed in district, sweep the leg in-process, the leg gets into the induction area, the capacitance value grow of induction electrode in the corresponding induction area, set for electric capacity change threshold value, electric capacity change amount exceeds and sets for the threshold value, note this induction electrode trigger state is 1, electric capacity change amount does not exceed and sets for the threshold value, note this induction electrode trigger state is 0.

Final output signal mode 1: the hard wire signal high-low level is directly output to the electric door controller through an OC circuit of the sensing device.

Final output signal mode 2: the radio frequency output chip in the induction device sends out an audio signal, the RF conversion unit receives a decision signal sent by the induction device, and then the hard line signal is output to the electric door controller through an OC circuit of the RF conversion unit.

In summary, the leg-sweeping sensing device provided by the invention comprises the sensing unit and the control unit, and is installed at a position close to the tail door or the side-sliding door of the automobile.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.