CN114407813A - Vehicle door electric control system and method and vehicle - Google Patents

Vehicle door electric control system and method and vehicle Download PDF

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Publication number
CN114407813A
CN114407813A CN202210162911.9A CN202210162911A CN114407813A CN 114407813 A CN114407813 A CN 114407813A CN 202210162911 A CN202210162911 A CN 202210162911A CN 114407813 A CN114407813 A CN 114407813A
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CN
China
Prior art keywords
door
vehicle
vehicle door
wireless
electric energy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210162911.9A
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Chinese (zh)
Inventor
李云涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Geely Holding Group Co Ltd
Weirui Electric Automobile Technology Ningbo Co Ltd
Zeekr Automobile Ningbo Hangzhou Bay New Area Co Ltd
Original Assignee
Zhejiang Geely Holding Group Co Ltd
Weirui Electric Automobile Technology Ningbo Co Ltd
Zeekr Automobile Ningbo Hangzhou Bay New Area Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Geely Holding Group Co Ltd, Weirui Electric Automobile Technology Ningbo Co Ltd, Zeekr Automobile Ningbo Hangzhou Bay New Area Co Ltd filed Critical Zhejiang Geely Holding Group Co Ltd
Priority to CN202210162911.9A priority Critical patent/CN114407813A/en
Publication of CN114407813A publication Critical patent/CN114407813A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention provides a vehicle door electric control system, a vehicle door electric control method and a vehicle, and belongs to the field of vehicle electronic control. This door electrical system includes: a wireless power transmitting device and a wireless power receiving device; the wireless electric energy transmitting device is arranged on the vehicle body; the wireless electric energy receiving device is arranged on the vehicle door, correspondingly receives the electric energy transmitted by the wireless electric energy transmitting device, and transmits the electric energy to the electricity demand device and/or the energy storage device in the vehicle door. The electric control system of the vehicle door realizes the electric energy transmission between the vehicle body and the vehicle door by respectively arranging the wireless electric energy transmitting device and the wireless electric energy receiving device on the vehicle body and the vehicle door, thereby realizing the wireless beam connection between the vehicle door and the vehicle body, simplifying the arrangement design of the vehicle door on the vehicle body, shortening the assembly flow, having the advantages of simple structure, high universality and high integration level, being capable of being freely combined with other vehicle door parts for design, and effectively reducing the manufacturing cost of the vehicle door.

Description

Vehicle door electric control system and method and vehicle
Technical Field
The invention relates to the field of vehicle electronic control, in particular to a vehicle door electric control system and method and a vehicle.
Background
In modern vehicle design, there are many electronic devices on the door, such as door control module, actuator of electric door and window, actuator of electric rearview mirror, camera, control switch, etc. The door therefore needs to draw power from the body through the wiring harness and bi-directionally communicate with the body controller.
The communication and power supply of the vehicle door and the vehicle body are completed by a wire harness connecting the vehicle door and the vehicle body. The wiring harness must withstand the bending action caused by repeated opening and closing cycles of the vehicle door, and achieve the waterproof and dustproof effects. With the increase of electronic and electrical equipment in the vehicle door, the wiring harness becomes increasingly bulky, which adversely affects the cycle life of its design, arrangement, and repeated bending resistance.
Therefore, there is an urgent need to develop a door electric control system, a method and a vehicle, which achieve the connection between the door and the vehicle body through wireless connection, so as to get rid of the constraint of the wire harness during the design of the door, so as to solve the above-mentioned drawbacks in the prior art.
Disclosure of Invention
In view of the above disadvantages of the prior art, the present invention provides a vehicle door electric control system, a method and a vehicle, which can realize electric energy transmission between a vehicle body and a vehicle door by providing a wireless electric energy transmitting device and a wireless electric energy receiving device on the vehicle body and the vehicle door, respectively, thereby solving the technical problems that the existing vehicle door electric control system needs to be connected with the vehicle body through a door wire harness, the vehicle door wire harness has a complicated structure, is easily damaged when exposed outside, and has poor universality.
To achieve the above and other related objects, the present invention provides a door electric control system, comprising: a wireless power transmitting device and a wireless power receiving device.
The wireless electric energy transmitting device is arranged on the vehicle body; the wireless electric energy receiving device is arranged on the vehicle door and correspondingly receives the electric energy transmitted by the wireless electric energy transmitting device so as to provide the electric energy for the power demand device and/or the energy storage device of the vehicle door.
In one example of the present invention, the power demand device includes a door controller electrically connected to each component of the door requiring control and in communication with a body controller.
In an example of the present invention, the energy storage device is electrically connected to the wireless power receiving device and each of the power demanding devices in the door.
In an example of the invention, the energy storage device and each power demand device in the vehicle door receive electric energy from the vehicle body through the wireless power transmitting device and the wireless power receiving device when the vehicle door is closed; the energy storage device provides electric energy for each power demand device on the vehicle door when the vehicle door is opened.
In an example of the present invention, when the vehicle door is closed, the wireless power transmitting device and the wireless power receiving device are disposed opposite to each other, and power transmission is performed between the wireless power transmitting device and the wireless power receiving device by an electromagnetic induction effect.
In an example of the present invention, the vehicle door control system further includes a wireless communication mechanism, and the vehicle door controller wirelessly communicates with the vehicle body controller through the wireless communication mechanism.
In one example of the present invention, the wireless communication mechanism includes a first communicator and a second communicator, the first communicator is disposed in the vehicle body and electrically connected to the vehicle body controller; the second communicator is arranged on the vehicle door and is electrically connected with the vehicle door controller; the first communicator communicates with the second communicator wirelessly.
In an example of the invention, the energy storage device is further provided with an electric quantity detector, and the electric quantity detector is used for monitoring the electric quantity of the energy storage device and feeding the electric quantity back to the vehicle body controller through the vehicle door controller.
The invention also provides a vehicle door electric control method, which comprises the following steps:
a wireless electric energy transmitting device is arranged on the vehicle body; the wireless electric energy receiving device is arranged on the vehicle door, and correspondingly receives the electric energy transmitted by the wireless electric energy transmitting device through the wireless electric energy receiving device, and transmits the electric energy to the power demand device and/or the energy storage device in the vehicle door.
The invention further provides a vehicle which comprises a vehicle body and a plurality of vehicle doors, wherein the vehicle body and the vehicle doors of the vehicle are provided with the vehicle door electric control system.
The invention relates to a vehicle door electric control system, a vehicle door electric control method and a vehicle, wherein a wireless electric energy transmitting device and a wireless electric energy receiving device are respectively arranged on a vehicle body and a vehicle door to realize electric energy transmission between the vehicle body and the vehicle door, so that wireless beam connection between the vehicle door and the vehicle body is realized, the arrangement design of the vehicle door on the vehicle body is simplified, the assembly process is shortened, and the vehicle door electric control system has the advantages of simple structure, high universality and high integration level, can be freely combined with other vehicle door parts for design, and effectively reduces the manufacturing cost of the vehicle door. Therefore, the invention effectively overcomes some practical problems in the prior art, thereby having high utilization value and use significance.
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 drawings without creative efforts.
Fig. 1 is a schematic circuit diagram of an electric control system for a vehicle door according to an embodiment of the present invention.
Description of the element reference numerals
100. A vehicle body; 110. a wireless power transmitting device; 120. a vehicle body controller; 130. a first communicator; 140. a body power supply; 200. a vehicle door; 210. a wireless power receiving device; 220. an energy storage device; 230. a door controller; 240. a second communicator.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. It is also to be understood that the terminology used in the examples is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention. Test methods in which specific conditions are not specified in the following examples are generally carried out under conventional conditions or under conditions recommended by the respective manufacturers.
It should be understood that the terms "upper", "lower", "left", "right", "middle" and "one" used herein are for clarity of description only, and are not intended to limit the scope of the invention, and that changes or modifications in the relative relationship may be made without substantial technical changes and modifications.
Referring to fig. 1, the present invention provides a vehicle door electric control system, a method and a vehicle, which can realize electric energy transmission between a vehicle body and a vehicle door by respectively providing a wireless electric energy transmitting device and a wireless electric energy receiving device on the vehicle body and the vehicle door, so as to solve the technical problems that the existing vehicle door electric control system needs to be connected with the vehicle body through a door harness, the vehicle door harness has a complex structure, is easily damaged when exposed outside, and has poor universality.
Referring to fig. 1, the door control system includes a wireless power transmitting device 110 and a wireless power receiving device 210. The wireless power transmitting device 110 is disposed on the vehicle body 100, and the wireless power transmitting device 110 is electrically connected to the vehicle body power source 140 through the vehicle body circuit to transmit power in the vehicle body power source 140, wherein the vehicle body power source 140 may be, for example, a battery with a voltage of 12V; the wireless power receiving device 210 is disposed on the vehicle door 200, and the wireless power receiving device 210 is disposed on the vehicle door 200 for receiving the power transmitted by the wireless power transmitting device 110 and transmitting the power to the power demand device and/or the energy storage device 220 in the vehicle door 200 through the vehicle door circuit.
In an embodiment of the present invention, the body power source 140 can provide power to the power demand device in the vehicle door 200 through the wireless power transmitting device 110 and the wireless power receiving device 210 regardless of whether the vehicle door 200 is in a closed state or an open state on the vehicle body 100.
In another embodiment of the present invention, the energy storage device 220 in the vehicle door 200 is electrically connected to the wireless power receiving device 210 and each power demand device in the vehicle door 200; when the vehicle door 200 is closed, the wireless power transmitting device 110 and the wireless power receiving device 210 are connected for power transmission, and the energy storage device 220 and each power demand device in the vehicle door 200 receive power from the vehicle body power source 140 in the vehicle body 100 through the wireless power receiving device 210 and the wireless power transmitting device 110 so as to perform charging energy storage and maintain normal operation; when the door 200 is opened, the wireless power transmitting device 110 and the wireless power receiving device 210 disconnect the power transmission, and the energy storage device 220 supplies power to various power-requiring devices in the door 200 through the door circuit. In the invention, the capacity of the energy storage device 220 must meet the requirement of each power demand device in the vehicle door 200, and the cycle life of the energy storage device 220 must meet the expected requirement of the overall life of the vehicle, and the type of the energy storage device 220 used is not limited, for example, in the embodiment, the energy storage device 220 may be a secondary battery or a super capacitor.
As can be seen, in the above-described embodiment, the door electrical control system realizes the wireless power supply of the vehicle body 100 to each power demand device in the vehicle door 200 by providing the wireless power transmitting device 110 and the wireless power receiving device 210 that can transmit power wirelessly at the vehicle body 100 and the vehicle door 200, respectively, thereby getting rid of the wire harness constraint between the vehicle door 200 and the vehicle body 100.
It should be noted that, the manner of transferring the electric power between the wireless power transmitting device 110 and the wireless power receiving device 210 may not be limited, for example, electromagnetic induction, magnetic resonance, or radio wave transfer, and in an embodiment of the present invention, the electric power is transferred between the wireless power transmitting device 110 and the wireless power receiving device 210 through electromagnetic induction. The wireless power transmitting device 110 and the wireless power receiving device 210 are respectively arranged at corresponding positions of the vehicle body 100 and the vehicle door 200, when the vehicle door 200 is closed, the wireless power transmitting device 110 and the wireless power receiving device 210 are oppositely arranged, and the distance between the wireless power transmitting device 110 and the wireless power receiving device 210 is smaller than or equal to the power-on distance, and at the moment, the induction coil in the wireless power receiving device 210 can receive an electric signal transmitted by the wireless power transmitting device 110 through electromagnetic induction effect induction, so that a power signal is transmitted between a vehicle door circuit and a vehicle body circuit. Meanwhile, the wireless power transmitting device 110 and the wireless power receiving device 210 which are arranged opposite to each other can effectively increase the induction area of the induction coil in the wireless power transmitting device 110 and the wireless power receiving device 210, so as to increase the efficiency of power transmission.
Referring to fig. 1, the power demand device includes a door controller 230, and the door controller 230 is electrically connected to each component of the door 200 to be controlled. The door controller 230 performs two-way communication with the body controller 120 through a wireless communication technology, so as to receive a control signal sent by the body controller 120, and control each component on the door 200 according to the control signal; or the conditions of each component on the vehicle door 200 are fed back to the vehicle body controller 120, so that the user can monitor the states of each component on the vehicle door 200 conveniently.
Referring to fig. 1, in an embodiment of the present invention, the door controller 230 is in wireless two-way communication with the body controller 120 through a wireless communication mechanism. The wireless communication mechanism is disposed on the vehicle door 200 and the vehicle body 100, the type of the wireless communication mechanism is not limited, and the wireless communication mechanism may be any wireless communication device capable of achieving the desired communication requirement between the vehicle door controller 230 and the vehicle body controller 120 when the vehicle door 200 is opened or closed, and in this embodiment, the wireless communication mechanism may be a two-way infrared communication device or a two-way high-frequency radio communication device.
Referring to fig. 1, in the present embodiment, the wireless communication mechanism includes a first communicator 130 and a second communicator 240. The first communicator 130 is disposed in the vehicle body 100, the first communicator 130 is electrically connected to the vehicle body controller 120 through a vehicle body circuit, the second communicator 240 is disposed in the vehicle door 200, and the second communicator 240 is electrically connected to the vehicle door controller 230 through a vehicle door circuit. Meanwhile, the first communicator 130 and the second communicator 240 perform wireless two-way communication, the first communicator 130 may receive a wireless signal from the second communicator 240, convert the wireless signal into an electrical signal, and transmit the electrical signal to the body controller 120 through the body circuit, and the second communicator 240 may also receive the wireless signal from the first communicator 130, convert the wireless signal into an electrical signal, and transmit the electrical signal to the door controller 230 through the door circuit.
Referring to fig. 1, in an embodiment of the present invention, the energy storage device 220 is further provided with a charge detector, the charge detector is electrically connected to the energy storage device 220 and the door controller 230, and the energy storage device 220 is configured to monitor the remaining charge in the energy storage device 220 and feed back the monitored remaining charge of the energy storage device 220 to the body controller 120 through the door controller 230.
The invention also provides a vehicle door electric control method, which comprises the following steps:
a wireless power transmitting device 110 is provided on the vehicle body 100; the vehicle door 200 is provided with a wireless power receiving device 210, and the wireless power receiving device 210 correspondingly receives the power transmitted by the wireless power transmitting device 110 and transmits the power to a power demand device and/or an energy storage device 220 in the vehicle door 200.
The invention also provides a vehicle, which comprises a vehicle body 100 and a plurality of vehicle doors 200 assembled on the vehicle body 100, wherein the vehicle body 100 and the plurality of vehicle doors 200 are provided with the vehicle door electric control system in any one of the embodiments, and the vehicle door electric control system enables the vehicle body 100 to maintain the wireless power supply and communication control of the vehicle doors 200 under the condition that the vehicle is not provided with a door wiring harness.
The invention relates to a vehicle door electric control system, a vehicle door electric control method and a vehicle, wherein a wireless electric energy transmitting device and a wireless electric energy receiving device are respectively arranged on a vehicle body and a vehicle door to realize electric energy transmission between the vehicle body and the vehicle door, so that wireless beam connection between the vehicle door and the vehicle body is realized, the arrangement design of the vehicle door on the vehicle body is simplified, the assembly process is shortened, and the vehicle door electric control system has the advantages of simple structure, high universality and high integration level, can be freely combined with other vehicle door parts for design, and effectively reduces the manufacturing cost of the vehicle door. Therefore, the invention effectively overcomes some practical problems in the prior art, thereby having high utilization value and use significance.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (10)

1. An electric control system for a vehicle door, comprising:
the wireless electric energy transmitting device is arranged on the vehicle body;
and the wireless electric energy receiving device is arranged on the vehicle door and correspondingly receives the electric energy transmitted by the wireless electric energy transmitting device so as to provide the electric energy for the power demand device and/or the energy storage device of the vehicle door.
2. An electrical door control system according to claim 1, wherein the power demand device comprises a door controller electrically connected to each component of the door requiring control and in communication with a body controller.
3. The door electrical system according to claim 1, wherein the energy storage device is electrically connected to the wireless power receiving device and to respective power requiring devices within the door.
4. The door electrical system according to claim 3, wherein the energy storage device and each of the power demand devices in the door receive power from the vehicle body through the wireless power transmitting device and the wireless power receiving device when the door is closed; the energy storage device provides electric energy for each power demand device on the vehicle door when the vehicle door is opened.
5. The door electrical system according to claim 1, wherein the wireless power transmitting device and the wireless power receiving device are disposed opposite to each other when the door is closed, and power transmission is performed between the wireless power transmitting device and the wireless power receiving device by an electromagnetic induction effect.
6. The door electrical system according to claim 2, further comprising a wireless communication mechanism, wherein the door controller wirelessly communicates with the body controller via the wireless communication mechanism.
7. The door control system according to claim 6, wherein the wireless communication mechanism includes a first communicator and a second communicator, the first communicator being disposed in the vehicle body and electrically connected to the vehicle body controller; the second communicator is arranged on the vehicle door and is electrically connected with the vehicle door controller; the first communicator communicates with the second communicator wirelessly.
8. The electric control system for the vehicle door according to claim 2, wherein an electric quantity detector is further arranged on the energy storage device, and the electric quantity detector is used for monitoring the electric quantity of the energy storage device and feeding back the electric quantity to the vehicle body controller through the vehicle door controller.
9. An electrical control method for a vehicle door, comprising:
a wireless electric energy transmitting device is arranged on the vehicle body;
the wireless electric energy receiving device is arranged on the vehicle door, and correspondingly receives the electric energy transmitted by the wireless electric energy transmitting device through the wireless electric energy receiving device, and transmits the electric energy to the power demand device and/or the energy storage device in the vehicle door.
10. A vehicle comprising a vehicle body and a plurality of vehicle doors, wherein the vehicle body and the vehicle doors are provided with the vehicle door electric control system according to any one of claims 1 to 8.
CN202210162911.9A 2022-02-22 2022-02-22 Vehicle door electric control system and method and vehicle Pending CN114407813A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210162911.9A CN114407813A (en) 2022-02-22 2022-02-22 Vehicle door electric control system and method and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210162911.9A CN114407813A (en) 2022-02-22 2022-02-22 Vehicle door electric control system and method and vehicle

Publications (1)

Publication Number Publication Date
CN114407813A true CN114407813A (en) 2022-04-29

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CN202210162911.9A Pending CN114407813A (en) 2022-02-22 2022-02-22 Vehicle door electric control system and method and vehicle

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115593340A (en) * 2022-09-29 2023-01-13 重庆长安汽车股份有限公司(Cn) Vehicle-mounted electrical appliance power supply system, vehicle and vehicle-mounted electrical appliance power supply method
WO2024037432A1 (en) * 2022-08-13 2024-02-22 长春捷翼汽车科技股份有限公司 Vehicle door system controlled by means of wireless network

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004003327A (en) * 1995-10-02 2004-01-08 Oi Seisakusho Co Ltd Automatic opening/closing control divice of slide door for vehicle
CN103061634A (en) * 2012-12-28 2013-04-24 北京易斯路电子有限公司 Wireless signal control device for power-operated sliding door of passenger vehicle
KR20130068152A (en) * 2011-12-14 2013-06-26 주식회사 유라코퍼레이션 Door control system for vehicle
CN111866832A (en) * 2020-07-02 2020-10-30 戴姆勒股份公司 System for wireless beam connection between door and body of vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004003327A (en) * 1995-10-02 2004-01-08 Oi Seisakusho Co Ltd Automatic opening/closing control divice of slide door for vehicle
KR20130068152A (en) * 2011-12-14 2013-06-26 주식회사 유라코퍼레이션 Door control system for vehicle
CN103061634A (en) * 2012-12-28 2013-04-24 北京易斯路电子有限公司 Wireless signal control device for power-operated sliding door of passenger vehicle
CN111866832A (en) * 2020-07-02 2020-10-30 戴姆勒股份公司 System for wireless beam connection between door and body of vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024037432A1 (en) * 2022-08-13 2024-02-22 长春捷翼汽车科技股份有限公司 Vehicle door system controlled by means of wireless network
CN115593340A (en) * 2022-09-29 2023-01-13 重庆长安汽车股份有限公司(Cn) Vehicle-mounted electrical appliance power supply system, vehicle and vehicle-mounted electrical appliance power supply method

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