CN219344381U - Door outage unlocking system and vehicle - Google Patents
Door outage unlocking system and vehicle Download PDFInfo
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- CN219344381U CN219344381U CN202223474338.XU CN202220474338U CN219344381U CN 219344381 U CN219344381 U CN 219344381U CN 202220474338 U CN202220474338 U CN 202220474338U CN 219344381 U CN219344381 U CN 219344381U
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- unlocking
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Abstract
The utility model discloses a vehicle door power-off unlocking system and a vehicle.
Description
Technical Field
The utility model relates to the field of automobile design and manufacture, in particular to a vehicle door power-off unlocking system and a vehicle.
Background
After the automobile collides, the high-low voltage power supply of the whole automobile can be cut off before the circuit is short-circuited and has a fire, so that the safety of a driver and passengers is protected.
At present, most automobiles are powered off after collision and the door is unlocked by a controller, an air bag controller (ACU) sends a signal for unlocking the door to a car body control unit in a very short time (millisecond level) after receiving a collision signal, and the car body control unit receives the signal for unlocking the door by the ACU and then unlocks the door by a door unlocking module, however, because the control logic is realized by the car body control unit, certain uncertainty exists, namely, when the car body control unit is powered off, or the signal transmission is wrong, the potential safety hazard exists.
Disclosure of Invention
Accordingly, the present utility model is directed to a door power-off unlocking system and a vehicle, which solve the technical problems mentioned in the background art.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a door de-energized unlocking system, comprising:
the power supply is electrically connected with the vehicle door unlocking module and the vehicle body power supply module respectively through the switching mechanism, and the vehicle door unlocking module is used for unlocking the vehicle door;
the control module is electrically connected with the fault sensor unit and the switching mechanism respectively and is used for enabling the power supply to switch between supplying power to the vehicle door unlocking module and supplying power to the vehicle body power supply module through the switching mechanism when receiving a fault signal sent by the fault sensor unit.
In a preferred embodiment, the vehicle door unlocking device further comprises a vehicle body control unit electrically connected with the vehicle door unlocking module, and the control module is connected with the vehicle body control unit in a bidirectional mode so as to acquire the unlocking state of the vehicle door.
In a preferred embodiment, the door unlocking module is composed of a plurality of parallel door unlocking motors, and a protection circuit is connected in series between the plurality of parallel door unlocking motors and the vehicle body control unit.
In a preferred embodiment, the protection circuit is formed by at least one diode connected in series.
In a preferred embodiment, the switching mechanism is a control relay, a coil of the control relay is connected in series to a power supply, a normally open contact of the control relay is electrically connected to a vehicle body power supply module, a normally closed contact of the control relay is electrically connected to a vehicle door unlocking module, and the normally open contact of the control relay is in a conducting state when the vehicle is in normal operation.
In a preferred embodiment, an explosion protection is connected in series between the coil of the control relay and the power supply, and a control end of the explosion protection is electrically connected to the control module.
In a preferred embodiment, the control module is an airbag controller, and an airbag is electrically connected to the control module.
In a preferred embodiment, the fault sensor unit comprises at least one collision sensor.
The vehicle provided by the utility model is provided with the power-off unlocking system.
Compared with the prior art, the utility model has the beneficial effects that: when the vehicle collides and the vehicle body control unit does not normally control the vehicle door to unlock, the control module enables the power supply to be switched to supply power to the vehicle door unlocking module through the switching mechanism, so that the vehicle door is smoothly unlocked, the stability is high, and the survival rate of drivers and passengers in collision accidents is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.
FIG. 1 is a schematic block diagram of a door de-energized unlocking system provided by the present utility model;
fig. 2 is a circuit diagram of a door power outage unlocking system provided in an embodiment.
The figures are marked as follows:
10. a power supply;
20. a switching mechanism;
30. a door unlocking module;
40. a vehicle body power supply module;
50. a control module;
60. a fault sensor unit;
70. a vehicle body control unit;
80. and a protection circuit.
Detailed Description
Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
The design principle of the utility model is as follows: at present, most automobiles are powered off and the door is unlocked by a controller after collision, an air bag controller (ACU) sends a signal for unlocking the door to a car body control unit in a very short time (millisecond level) after receiving a collision signal, and the car body control unit unlocks the door through a car door unlocking module after receiving the ACU door unlocking signal, but because the control logic is realized by the car body control unit, certain uncertainty exists, namely, when the car body control unit is powered off or the signal transmission is wrong, the potential safety hazard exists, the utility model aims to design a car door power-off unlocking system.
The technical scheme of the utility model is as follows: a door de-energized unlocking system, as shown in fig. 1, comprising: the power supply 10 is electrically connected with a vehicle door unlocking module 30 and a vehicle body power supply module 40 through a switching mechanism 20, and the vehicle door unlocking module 30 is used for unlocking a vehicle door; the control module 50 is electrically connected to the fault sensor unit 60 and the switching mechanism 20, respectively, and is configured to switch the power supply 10 between supplying power to the door unlocking module 30 and supplying power to the vehicle body power supply module 40 via the switching mechanism 20 when a fault signal from the fault sensor unit 60 is received. Also included is a body control unit 70 electrically connected to the door unlocking module 30, the control module 50 being bi-directionally connected to the body control unit 70 to obtain the unlocked state of the door.
In this embodiment, as shown in fig. 2, the power supply 10 is a dc power supply voltage VCC, the switching mechanism 20 includes a control relay K1, and the fault sensor unit 60 includes at least one collision sensor K2; the coil of the control relay K1 is connected in series to the power supply 10, the normally open contact of the control relay K1 is electrically connected to the vehicle body power supply module 40, the normally closed contact of the control relay K1 is electrically connected to the vehicle door unlocking module 30, and the normally open contact of the control relay K1 is in a conducting state when the vehicle runs normally, and the control relay K1 is connected with a plurality of loads RL to realize power supply to the loads RL in the vehicle. When the vehicle collides and the vehicle body control unit 70 does not normally control the unlocking of the vehicle door, the control module 50 obtains the unlocking state of the vehicle door through the vehicle body control unit 70, and switches the power supply 10 to supply power to the vehicle door unlocking module 30 through the switching mechanism 20, so that the vehicle door is smoothly unlocked.
Further, the explosion safety FU is connected in series between the coil of the control relay K1 and the power supply 10, the control end of the explosion safety FU is electrically connected to the control module 50, when the vehicle collides and the vehicle body control unit 70 does not normally control the unlocking of the vehicle door, the control module 50 sends a signal to the explosion safety FU, after the explosion is controlled, the coil loop of the control relay K1 is powered off, the normally open contact is switched from the closed state to the open state, the normally closed contact is closed again, finally, the power supply 10 is switched to supply power to the vehicle door unlocking module 30, the smooth unlocking of the vehicle door is realized, and compared with the logic control of the vehicle body control unit 70, the stability is better.
In one embodiment, as shown in fig. 2, the door unlocking module 30 is composed of several door unlocking motors connected in parallel, respectively: the left front door unlocking motor M1, the right front door unlocking motor M2, the left rear door unlocking motor M3 and the right rear door unlocking motors M4, M1-M4 are arranged in parallel, and a protection circuit 80 is connected in series between a plurality of parallel door unlocking motors and the vehicle body control unit 70.
Further, the protection circuit 80 is formed by connecting at least one diode D1 in series, where the protection circuit 80 is not limited to be formed by a diode, and may be formed by any one or more of a diode, a triode, and a thyristor, as long as it can only realize that current can only flow in one direction from the vehicle body control unit 70 to the door unlocking module 30, so that the power supply 10 is prevented from flowing in the opposite direction to the vehicle body control unit 70 to cause damage when switching between supplying power to the door unlocking module 30 and supplying power to the vehicle body power supply module 40.
In one embodiment, the control module 50 is an airbag controller ACU, and the airbag controller ACU is electrically connected to the control module 50, so that the airbag controller ACU controls the airbag to be opened first when the vehicle collides, so as to ensure the safety of personnel in the vehicle.
According to the vehicle provided by the utility model, with the power-off unlocking system, when the vehicle collides and the vehicle body control unit 70 does not normally control the unlocking of the vehicle door, the control module 50 enables the power supply 10 to be switched to supply power to the vehicle door unlocking module 30 through the switching mechanism 20, so that the vehicle door can be smoothly unlocked, and the survival rate of drivers and passengers in the event of collision accidents is improved.
While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.
Claims (9)
1. A door power-off unlocking system, comprising:
the power supply is electrically connected with the vehicle door unlocking module and the vehicle body power supply module respectively through the switching mechanism, and the vehicle door unlocking module is used for unlocking the vehicle door;
the control module is electrically connected with the fault sensor unit and the switching mechanism respectively and is used for enabling the power supply to switch between supplying power to the vehicle door unlocking module and supplying power to the vehicle body power supply module through the switching mechanism when receiving a fault signal sent by the fault sensor unit.
2. A door de-energized unlocking system according to claim 1, wherein: the vehicle body control unit is electrically connected with the vehicle door unlocking module, and the control module is in bidirectional connection with the vehicle body control unit to acquire the unlocking state of the vehicle door.
3. A door de-energized unlocking system according to claim 2, wherein: the vehicle door unlocking module consists of a plurality of parallel vehicle door unlocking motors, and a protection circuit is connected between the plurality of parallel vehicle door unlocking motors and the vehicle body control unit in series.
4. A door de-energized unlocking system according to claim 3, wherein: the protection circuit is formed by connecting at least one diode in series.
5. A door de-energized unlocking system according to claim 1, wherein: the switching mechanism is a control relay, a coil of the control relay is connected in series to a power supply, a normally open contact of the control relay is electrically connected to a vehicle body power supply module, a normally closed contact of the control relay is electrically connected to a vehicle door unlocking module, and when a vehicle normally operates, the normally open contact of the control relay is in a conducting state.
6. The door de-energized unlocking system of claim 5, wherein: an explosion safety is connected in series between the coil of the control relay and the power supply, and a control end of the explosion safety is electrically connected to the control module.
7. A door de-energized unlocking system according to claim 1, wherein: the control module is an air bag controller, and the air bag is electrically connected to the control module.
8. A door de-energized unlocking system according to claim 1, wherein: the fault sensor unit includes at least one collision sensor.
9. A vehicle, characterized in that: having a power outage unlocking system according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223474338.XU CN219344381U (en) | 2022-12-26 | 2022-12-26 | Door outage unlocking system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223474338.XU CN219344381U (en) | 2022-12-26 | 2022-12-26 | Door outage unlocking system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219344381U true CN219344381U (en) | 2023-07-14 |
Family
ID=87099101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223474338.XU Active CN219344381U (en) | 2022-12-26 | 2022-12-26 | Door outage unlocking system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219344381U (en) |
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2022
- 2022-12-26 CN CN202223474338.XU patent/CN219344381U/en active Active
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