CN216841141U

CN216841141U - Anti-collision system of electric opening and closing vehicle door

Info

Publication number: CN216841141U
Application number: CN202123394389.7U
Authority: CN
Inventors: 安雪梅; 邢俊峰; 董锴; 赵丹; 黄云涛
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-06-28
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses an anti-collision system of an electric opening and closing vehicle door, which comprises a radar sensor arranged on the vehicle door, a vehicle door radar controller and an electric vehicle door controller; the number of the radar sensors arranged on each car door is not less than two; the radar sensor is connected with the vehicle door radar controller in a bidirectional mode, the output of the vehicle door radar controller is connected with an LIN or CAN network, and the electric vehicle door controller is connected with the LIN or CAN network in a linked mode and is connected with the vehicle door radar controller in a bidirectional mode through the LIN or CAN network. The radar sensors arranged on each car door are three, the three radar sensors form an acute-angle triangular structure and are distributed on the outer surface of the car door, and the maximum coverage of the outer surface of the car door which can be opened and closed is realized through the FOV. The utility model discloses can realize safer and more reliable's switching door.

Description

Anti-collision system of electric opening and closing vehicle door

Technical Field

The utility model relates to an electronic switching technology of door improves, and more specifically says and relates to an anticollision system of electronic switching door, and this system is applicable to all designs and has the car of electric door, can effectively realize that electronic switching door in-process barrier is surveyed to carry out the early warning to the electric door in service, avoid taking place the striking, produce the damage to door and barrier. Belongs to the technical field of electric vehicle doors.

Background

The electric opening and closing of the vehicle door is realized by an electric control system, an electric actuating mechanism, an electric releasing vehicle door lock and a suction vehicle door lock, before and during the electric opening of the vehicle door, barrier information in a vehicle door motion envelope range needs to be detected, the opening angle of the vehicle door is intelligently controlled, the vehicle door is intelligently stopped, and the vehicle door in electric motion is ensured not to collide with the barrier.

The existing obstacle detection scheme is that a radar sensor is arranged in the outer surface area of a vehicle door, and obstacle information is detected through the radar sensor, but the radar sensor is limited by an optical FOV angle, so that a dead zone in a large range exists, obstacles in the dead zone range cannot be identified, meanwhile, the traditional radar sensor cannot accurately detect long and thin obstacles and flaky obstacles, and the risk that the outer surface of the vehicle door is damaged by collision in the automatic opening process of the vehicle door exists.

SUMMERY OF THE UTILITY MODEL

The above-mentioned not enough to prior art exists, the utility model aims at providing an anticollision system of electronic switching door to realize safer and more reliable's switching door.

The technical scheme of the utility model is realized like this:

an anti-collision system for electrically opening and closing a vehicle door comprises a radar sensor, a vehicle door radar controller and an electric vehicle door controller, wherein the radar sensor, the vehicle door radar controller and the electric vehicle door controller are arranged on the vehicle door; the method is characterized in that: the number of the radar sensors arranged on each car door is not less than two; the radar sensor is connected with the vehicle door radar controller in a bidirectional mode, the output of the vehicle door radar controller is connected with an LIN or CAN network, and the electric vehicle door controller is connected with the LIN or CAN network in a linked mode and is connected with the vehicle door radar controller in a bidirectional mode through the LIN or CAN network.

The radar sensors arranged on each car door are three, the three radar sensors form a triangular structure, and the covering of the outer surface of the car door which can be opened and closed to the maximum degree is realized through the FOV.

Among the three radar sensors on every door, wherein two are for can penetrating the hidden radar sensor of metal detection, hide the radar sensor and arrange the internal surface at the outer panel beating of door metal, and the third is the visible radar sensor of assembly on the backplate working of plastics under the door.

All the radar sensors on the vehicle door share one set of vehicle door radar controller.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses utilize the radar sensor of door zone layout, can realize that the electric door opens the interior non-blind area of motion envelope and surveys, the opening angle of automatic control door guarantees that the door stops in the safe distance within range with the barrier, can not take place the striking with the barrier.

2. The utility model discloses a radar sensor's arranging, radar sensor realizes the overlap of coverage area each other under the prerequisite as far as possible, can avoid the blind area to appear, guarantees the actual guide effect of detecting result to the opening and closing door.

3. The hidden radar sensor capable of penetrating through metal detection and the visible radar sensor on the plastic part on the outer surface of the vehicle door can not affect the attractiveness and simplicity of the vehicle door due to arrangement of the sensors under the condition of realizing the detection function.

Drawings

Fig. 1-arrangement schematic diagram of the radar of the present invention on the vehicle door.

Figure 2-the utility model discloses anticollision detection work flow chart.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings.

Fig. 1 is the radar layout schematic diagram of the utility model. Referring to fig. 1, the utility model discloses collision avoidance system of electronic switching door, including setting up radar sensor 1, door radar controller 11 and the electric door controller 21 on the door. The number of the radar sensors 1 arranged on each car door is not less than two; the radar sensor 1 is connected with the vehicle door radar controller 11 in a bidirectional mode, the output of the vehicle door radar controller 11 is connected with an LIN or CAN network, and the electric vehicle door controller 21 is connected with the LIN or CAN network and is connected with the vehicle door radar controller 11 in a bidirectional mode through the LIN or CAN network.

The door radar controller 11 controls the radar sensor on a per-door basis, that is, on the door on which the opening request is made every time the radar sensor is activated.

The utility model relates to a design has the car of electronic switching door, concretely relates to electronic switching door is at electronic barrier detection and the early warning scheme of opening the in-process, realizes that the barrier detects, guarantees the electronic security of opening the in-process. The utility model discloses arrange three ultrasonic radar sensors on every door, three radar sensors form the acute angle triangle-shaped structure to distribute on the door, realize the cover to the door surface maximize that can open and close through the FOV. Meanwhile, a vehicle door radar controller is arranged on the vehicle body, and an electric vehicle door anti-collision detection system of each door is formed by three ultrasonic radar sensors and the vehicle door radar controller.

Fig. 2 is the utility model discloses collision avoidance work flow chart. When an electric door controller 21 receives a door opening request signal of a user, a barrier detection request is sent to a door radar controller 11, after the door radar controller 11 receives the barrier detection request, the door radar controller 11 controls radar sensors of corresponding doors to detect barriers, namely, the door radar controller 11 simultaneously excites all radar sensors on the corresponding doors to simultaneously emit ultrasonic waves to detect the barriers in the FOV range of the doors, the door radar controller 11 calculates position information of the barriers according to received ultrasonic echoes, then calculates the maximum opening angle of the doors, sends the door opening angle information to an LIN or CAN network, and simultaneously receives the opening angle information through a door controller linked to the LIN or CAN network to control the doors to be automatically opened to the corresponding opening degrees.

Meanwhile, in the process of opening and moving the vehicle door, the anti-collision detection system of the vehicle door monitors the barrier in the motion range of the vehicle door in real time, generates early warning information for the detected barrier, and sends the early warning information to the electric vehicle door controller 21, and after the electric vehicle door controller 21 receives the information of the invading barrier, the vehicle door is controlled to stop in time, so that the damage caused by the collision with the invading barrier is avoided.

The specific working principle of the vehicle door radar controller is as follows: the single chip microcomputer is used as a control circuit, the controller excites the pulse excitation radar to emit ultrasonic waves outwards, the single chip microcomputer starts timing, the emitted ultrasonic waves form reflected waves after contacting with an obstacle, part of the reflected waves are detected by the radar sensor after returning and are converted into electric signals by the ultrasonic sensor, the electric signals are amplified and shaped by the shaping circuit to generate negative jump voltage, the single chip microcomputer responds to an interrupt request sent by negative condition voltage, timing is stopped, the total sending and returning time of the ultrasonic waves is calculated, and therefore the distance between the emitting point and the obstacle is calculated.

Among three radar sensors on each door, two of them are hidden radar sensors which can penetrate through metal for detection, and the hidden radar sensors are arranged on the inner surface of a metal outer plate of the door. Because door inner structure's space restriction, hidden radar sensor requires highly to space and profile curved surface, can't realize arranging in door panel beating lower part region, consequently, need supply the third visible radar sensor that can assemble on door lower protective plate working of plastics, the structure of triangle-shaped falls is constituteed to three radar sensor, realize that the FOV covers the maximize of door surface, avoid the door to open the in-process electronically and have the obstacle detection blind area, three radar sensor are connected to same door radar controller 11 through the pencil. And the three radar sensors and the vehicle door radar controller 11 form an anti-collision detection system of each vehicle door.

The utility model discloses a door radar controller 11 possesses the ability that can control 12 radars at most, calculates according to three radar sensor in every door, and 12 radar sensor can be arranged altogether to four doors, consequently whole car only need dispose a door radar controller 11, and it arranges the position and can be at the arbitrary position of automobile body. That is, all the radar sensors on the vehicle door share one set of vehicle door radar controller.

Finally, it should be noted that the above-mentioned embodiments of the present invention are only examples for illustrating the present invention, and are not limitations to the embodiments of the present invention. While the invention has been described in detail and with reference to preferred embodiments thereof, it will be apparent to one skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope thereof. Not all embodiments are exhaustive. All obvious changes or variations which are introduced by the technical solution of the present invention are still within the scope of the present invention.

Claims

1. An anti-collision system for electrically opening and closing a vehicle door comprises a radar sensor, a vehicle door radar controller and an electric vehicle door controller, wherein the radar sensor, the vehicle door radar controller and the electric vehicle door controller are arranged on the vehicle door; the method is characterized in that: the number of the radar sensors arranged on each car door is not less than two; the radar sensor is connected with the vehicle door radar controller in a bidirectional mode, the output of the vehicle door radar controller is connected with an LIN or CAN network, and the electric vehicle door controller is connected with the LIN or CAN network in a linked mode and is connected with the vehicle door radar controller in a bidirectional mode through the LIN or CAN network.

2. The anti-collision system for the electrically-operated opening and closing vehicle door according to claim 1, characterized in that: the radar sensors arranged on each car door are three, the three radar sensors form a triangular structure, and the covering of the outer surface of the car door which can be opened and closed to the maximum degree is realized through the FOV.

3. The anti-collision system for the electrically-operated opening and closing vehicle door according to claim 2, characterized in that: among the three radar sensors on every door, wherein two are for can penetrating the hidden radar sensor of metal detection, hide the radar sensor and arrange the internal surface at the outer panel beating of door metal, and the third is the visible radar sensor of assembly on the backplate working of plastics under the door.

4. The anti-collision system for the electrically-operated opening and closing vehicle door according to claim 1, characterized in that: all the radar sensors on the vehicle door share one set of vehicle door radar controller.