CN209964348U - An inner dome light control circuit - Google Patents
An inner dome light control circuit Download PDFInfo
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- CN209964348U CN209964348U CN201920110117.3U CN201920110117U CN209964348U CN 209964348 U CN209964348 U CN 209964348U CN 201920110117 U CN201920110117 U CN 201920110117U CN 209964348 U CN209964348 U CN 209964348U
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- manual switch
- body controller
- inner dome
- dome light
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Abstract
本实用新型涉及一种内顶灯控制电路，包括：环境光传感器、车身控制器、比较器、存储器和内顶灯；其中，环境光传感器采集外界光照度；车身控制器与环境光采集电路信号连接，接收环境光传感器采集的外界光照度；存储器中存储有预设外界光照度；比较器对所述环境光传感器采集的外界光照度与所处存储器中存储的预设外界光照度进行比较，车身控制器在环境光采集电路采集的外界光照度小于等于预设外界光照度时，提供第一控制信号；内顶灯与车身控制器连接，内顶灯在所述第一控制信号的控制下处于可自动点亮状态。本实用新型提出的内顶灯控制电路在不增加整车成本的基础上，节约了汽车能源。
The utility model relates to an inner dome light control circuit, comprising: an ambient light sensor, a body controller, a comparator, a memory and an inner dome light; wherein, the ambient light sensor collects the ambient illuminance; The ambient illuminance collected by the ambient light sensor; the preset ambient illuminance is stored in the memory; the comparator compares the ambient illuminance collected by the ambient light sensor with the preset ambient illuminance stored in the memory, and the body controller collects the ambient light in the ambient light. When the ambient illuminance collected by the circuit is less than or equal to the preset ambient illuminance, a first control signal is provided; the inner dome light is connected to the body controller, and the inner dome light is in a state of being automatically lit under the control of the first control signal. The inner dome light control circuit proposed by the utility model saves the energy of the vehicle on the basis of not increasing the cost of the whole vehicle.
Description
Technical Field
The utility model belongs to the technical field of car electrical apparatus control, concretely relates to interior dome lamp control circuit.
Background
With the increase of the automobile industrialization speed and the improvement of the living standard of people, more and more people buy the automobiles. Automotive vehicles have interior dome lights mounted on the interior roof to illuminate the interior of the vehicle when necessary. When the automobile is used, the inner top lamp can be automatically lightened immediately when the whole automobile is powered off or the door is opened for safety consideration. If the automobile is in sunny weather, the lighted inner top lamp is useless, and energy is wasted.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem of the above-mentioned automobile energy waste, the embodiment of the utility model provides an interior dome lamp control circuit is provided.
The utility model provides an interior dome lamp control circuit, include: the device comprises an ambient light sensor, a vehicle body controller, a comparator, a memory and an interior dome lamp; wherein,
an ambient light sensor collects the ambient light illumination;
the vehicle body controller is in signal connection with the ambient light acquisition circuit and receives the ambient light illumination acquired by the ambient light sensor;
the memory stores preset ambient light intensity;
the comparator compares the ambient illuminance collected by the ambient light sensor with preset ambient illuminance stored in the memory, and the automobile body controller provides a first control signal when the ambient illuminance collected by the ambient light collection circuit is less than or equal to the preset ambient illuminance; and
the inner ceiling lamp is connected with the vehicle body controller, and the inner ceiling lamp is in an automatic lightening state under the control of the first control signal.
In some embodiments, the vehicle body controller includes an energy-saving pin, and the energy-saving pin is connected to a power input terminal of the ambient light sensor to supply power to the ambient light sensor.
In some embodiments, the interior ceiling light control circuit further comprises a manual switch, and the manual switch is connected with the interior ceiling light.
In some embodiments, the interior dome light comprises a first interior dome light and a second interior dome light, and the manual switch comprises a first manual switch and a second manual switch, wherein each of the first manual switch and the second manual switch comprises a moving end, a first stationary end, and a second stationary end;
the anode of the power supply output end of the automobile body controller is respectively connected with one end of a first inner top lamp and one end of a second inner top lamp, the other end of the first inner top lamp is connected with the movable end of a first manual switch, and the other end of the second inner top lamp is connected with the movable end of a second manual switch; the first fixed end of the first manual switch is grounded, and the first fixed end of the second manual switch is grounded; the second fixed end of the first manual switch and the second fixed end of the second manual switch are respectively connected with the negative electrode of the power output end of the automobile body controller.
In some embodiments, the second fixed terminal of the first manual switch and the second fixed terminal of the second manual switch are respectively connected to the negative pole of the power output terminal of the vehicle body controller through a diode.
In some embodiments, the inner overhead lamp control circuit further includes a first diode and a second diode, the first diode is conducted under the control of the first manual switch, an anode of the first diode is connected to the second fixed end of the first manual switch, and a cathode of the first diode is connected to a cathode of the power output end of the vehicle body controller; the second diode is conducted under the control of the second manual switch, the anode of the second diode is connected with the second fixed end of the second manual switch, and the cathode of the second diode is connected with the cathode of the power output end of the automobile body controller.
In certain embodiments, the ambient light sensor comprises an ambient light sensor of an automatic headlamp.
In some embodiments, the interior dome lamp control circuit further includes a door contact switch, and the door contact switch is configured to detect an opening/closing state of the vehicle door and send a door opening signal or a door closing signal to the vehicle body controller according to the opening/closing state of the vehicle door, so as to prompt the vehicle body controller to control the interior dome lamp to be turned on or off according to the received door opening signal or door closing signal.
In some embodiments, the manual switch includes a moving end, a first stationary end, and a second stationary end;
interior dome lamp is connected with automobile body controller, includes: the positive pole of the power output end of the automobile body controller is connected with one end of the inner dome lamp, the other end of the inner dome lamp is connected with the movable end of the manual switch, the first immovable end of the manual switch is grounded, and the second immovable end of the manual switch is connected with the negative pole of the power output end of the automobile body controller.
In some embodiments, the other end of the interior dome lamp is connected to the movable end of the manual switch, and the interior dome lamp comprises: the other end of the inner top lamp is connected with the anode of a diode, and the cathode of the diode is connected with the movable end of the manual switch; and/or the presence of a gas in the gas,
the second stationary end of manual switch connects the negative pole of the power output end of the automobile body controller, including: and the second fixed end of the manual switch is connected with the anode of a diode, and the cathode of the diode is connected with the cathode of the power output end of the automobile body controller.
The utility model has the advantages that: the embodiment of the utility model provides an interior dome lamp control circuit, through utilizing the existing ambient light sensor of whole car (for example, the ambient light sensor who is used for automatic headlight), control the switch of interior dome lamp, under the sufficient condition of external light, control interior dome lamp and be in the state that can not light automatically; under the not enough condition of external light, the dome lamp is in the state that can light automatically in the control, consequently the utility model provides an interior dome lamp control circuit has practiced thrift the automobile energy on the basis that does not increase whole car cost.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of an inner ceiling lamp control circuit according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another embodiment of an inner ceiling lamp control circuit according to an embodiment of the present invention;
fig. 3 shows a schematic structural diagram of another embodiment of an inner ceiling lamp control circuit according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the present invention is not limited to the drawings and the following embodiments.
The embodiment of the utility model provides an interior dome lamp control circuit, as shown in fig. 1 and fig. 2, include: an ambient light collection circuit 10, a body controller 20, a comparator 201, a memory 202, and an interior dome lamp 30.
And the ambient light acquisition circuit 10 is used for acquiring the ambient light illumination. In the present embodiment, the ambient light collection circuit 10 includes an ambient light sensor 101, and the ambient light sensor 101 collects ambient light illuminance. In order not to increase the cost of the whole vehicle, the ambient light sensor adopts an existing ambient light sensor of the whole vehicle, such as an ambient light sensor for an automatic headlamp.
A Body Controller (BCM) 20 electrically connected to the ambient light acquisition circuit 10 for supplying power to the ambient light acquisition circuit 10, and the Body controller 20 is in signal connection with the ambient light acquisition circuit 10 for receiving the ambient light illuminance acquired by the ambient light sensor 101. In an embodiment, the vehicle body controller 20 includes an energy-saving pin, a power output end, and a signal input end, where the energy-saving pin is connected to the power input end of the ambient light sensor 101 to supply power to the ambient light sensor 101; the signal input end is connected with the signal output end of the ambient light sensor 101, and ambient light illuminance collected by the ambient light sensor 101 is acquired from the ambient light sensor. In the embodiment, the ambient light sensor 101 is connected to the energy-saving pin of the vehicle body controller 20 to obtain electric energy, and after the vehicle is powered off, the energy-saving pin of the vehicle body controller 20 can supply power to the ambient light sensor 101 for a certain period (in some cases, for example, about 3 minutes), and during this period, the ambient light sensor 101 can still detect the external brightness.
The memory 202 stores a preset ambient light level, for example, 400 Lux.
The comparator 201 compares the ambient light illuminance collected by the ambient light sensor 101 with the preset ambient light illuminance stored in the memory 202, and the body controller 20 provides a first control signal when the ambient light illuminance collected by the ambient light collection circuit 10 is less than or equal to the preset ambient light illuminance; when the ambient light collected by the ambient light collection circuit 10 is greater than the preset ambient light, the body controller 20 does not provide the first control signal. In one embodiment, the comparator 201 may implement a comparison function through an operational amplifier. It is to be understood that the not providing the first control signal by the vehicle body controller 20 when the ambient light collected by the ambient light collection circuit 10 is greater than the preset ambient light includes: when the ambient light collected by the ambient light collection circuit 10 is greater than the preset ambient light, the vehicle body controller 20 provides a second control signal different from the first control signal, or the vehicle body controller 20 does not provide any control signal.
Those skilled in the art know that light sensors are devices that convert light energy into an electrical signal. In one embodiment, the memory 202 further stores a table indicating a correspondence relationship between the illuminance collected by the ambient light sensor 101 and the output voltage. It is understood that, in an embodiment, the ambient light sensor 101 converts the collected ambient light illuminance into a voltage signal and outputs the voltage signal to the comparator 201, and the comparator 201 compares the voltage signal with the output voltage corresponding to the preset ambient light illuminance in the table, so as to determine whether the ambient light illuminance collected by the ambient light collection circuit 10 is less than or equal to the preset ambient light illuminance, which is shown in fig. 1. In another embodiment, the ambient light sensor 101 converts the collected ambient light intensity into a voltage signal and outputs the voltage signal to the vehicle body controller 20, the vehicle body controller 20 converts the voltage signal into a corresponding ambient light intensity by querying the table, and the comparator 201 compares the ambient light intensity with a preset ambient light intensity, so as to determine whether the ambient light intensity collected by the ambient light collection circuit 10 is less than or equal to the preset ambient light intensity. Table 1 shows a corresponding relationship between the partial illuminance collected by the ambient light sensor and the output voltage, and it can be seen from the table that the value of the output voltage tends to be stable after increasing to a certain value with the increase of the illuminance.
In one embodiment, the comparator 201 and/or the memory 202 are independent of the body controller 20, as shown in FIG. 1. In another embodiment, the comparator 201 and the memory 202 may be integrated in the body controller 20, as shown in fig. 2.
The inner ceiling lamp 30 is connected with the power supply output end of the automobile body controller 20, and when the automobile body controller 20 provides the first control signal, the inner ceiling lamp 30 is in an automatic lightening state; when the first control signal is not provided by the vehicle body controller 20, the interior dome lamp 30 is in the non-automatically-lit state. Therefore, in the present embodiment, the turning on or off of the interior dome lamp is controlled by the illuminance of the outside light collected by the ambient light sensor. In this embodiment, the interior dome lamp 30 may be one or more. When there are a plurality of the interior dome lamps 30, in one embodiment, the interior dome lamps may be one or more of front interior dome lamps or rear interior dome lamps; in another embodiment, the interior dome light may be one or more of a front left interior dome light, a front right interior dome light, a rear left interior dome light, and a rear right interior dome light. In the embodiment, the automatically illuminable state represents that the vehicle is in a night mode, and the inner dome lamp can be automatically illuminable in certain setting occasions (for example, the vehicle door is in an open state); the non-automatic lighting state represents that the vehicle is in a daytime mode and cannot automatically light the interior dome lamp.
In an embodiment, the interior ceiling lamp control circuit further includes an automatic lighting switch (not shown), and the interior ceiling lamp is controlled to be in an automatically illuminable state or in a non-automatically illuminable state by closing or opening the automatic lighting switch. Specifically, when the first control signal is provided by the vehicle body controller 20, the automatic lighting switch is in a closed state, and the interior dome lamp 30 is in an automatically illuminable state; when the first control signal is not provided by the vehicle body controller 20, the automatic lighting switch is in an on state, and the interior dome lamp 30 is in a non-automatic lighting state.
It is understood that, in an embodiment, the inside dome lamp control circuit further includes a door contact switch (not shown) for detecting an opening/closing state of the vehicle door and sending a door opening signal or a door closing signal to the vehicle body controller 20 according to the opening/closing state of the vehicle door, and in an embodiment, the door contact switch is provided corresponding to each vehicle door. When the inner dome lamp 30 is in an automatically illuminable state and the door contact switch detects that the door is opened, the vehicle body controller 20 receives a door opening signal and controls the inner dome lamp to be illuminable; when the door contact switch detects that the vehicle door is closed, the vehicle body controller 20 receives a door closing signal and controls the interior dome lamp to be turned off.
The interior dome lamp control circuit still includes manual switch 40, manual switch 40 with interior dome lamp 30 is connected. It is understood that in the present embodiment, the manual switch 40 forces the interior dome lamp 30 to be turned on, and thus even in the daytime mode, the interior dome lamp 30 is turned on when the manual switch 40 is in the closed state; when the manual switch 40 is in the on state, the interior dome lamp 30 is turned on or off under the control of the vehicle body controller 20. In the present embodiment, the control logic of the interior ceiling lamp control circuit is shown in table 2.
The 'power supply of the whole vehicle is switched to OFF' in the table 2 represents the action of switching the power supply of the whole vehicle to OFF, and the 'whole vehicle is in a power-ON state' represents that the power supply of the whole vehicle is in an ON gear and the vehicle instrument normally displays various information; the 'the whole vehicle is in a power-OFF state' indicates that the power supply of the whole vehicle is in an OFF gear. In Table 2, "-" indicates the condition in any case. As shown in table 2, when the manual switch is in the on state and the ambient light collected by the ambient light sensor is less than or equal to the preset ambient light, when the entire vehicle is in the power-on state or the power-off state, the vehicle door is opened, the inner dome lamp is turned on, and the inner dome lamp is turned off until the vehicle door is closed or the energy-saving pin is closed to output; when the power supply of the whole vehicle is switched to OFF, the inner top lamp is lightened until a preset lightening time is reached after all four doors are closed, and the inner top lamp is extinguished. The set lighting time period in the table may be 30 seconds, for example.
In one embodiment, the manual switch 40 includes a moving end, a first stationary end, and a second stationary end; the interior dome lamp 30 is connected with the power output terminal of the vehicle body controller 20, and includes: the positive pole of the power output end of the vehicle body controller 20 is connected with one end of the inner dome lamp 30, the other end of the inner dome lamp 30 is connected with the movable end of the manual switch 40, the first immovable end of the manual switch 40 is grounded, and the second immovable end of the manual switch 40 is connected with the negative pole of the power output end of the vehicle body controller 20. In one embodiment, the other end of the inner dome lamp 30 is connected to the anode of a diode, and the cathode of the diode is connected to the moving end of the manual switch 40; and/or the second fixed end of the manual switch 40 is connected with the anode of a diode, and the cathode of the diode is connected with the cathode of the power output end of the vehicle body controller 20.
Fig. 3 shows a specific implementation manner of the inner ceiling lamp control circuit proposed in this embodiment. Referring to fig. 3, the interior ceiling lamp control circuit includes: the system comprises an ambient light sensor 3101, a vehicle body controller 320, a first inner ceiling lamp 3301, a second inner ceiling lamp 3302, a first manual switch 3401 and a second manual switch 3402, wherein the first manual switch 3401 and the second manual switch 3402 are both single-pole double-throw switches, and each single-pole double-throw switch comprises a movable end, a first immovable end and a second immovable end. The body controller 320 includes a comparator and a memory.
As shown in fig. 3, a power input terminal of the ambient light sensor 3101 is connected to a power output terminal BAT + of the vehicle body controller 320, and a signal output terminal of the ambient light sensor 3101 is connected to a signal input terminal of the vehicle body controller 320.
Referring to fig. 3 again, the positive electrode of the power output terminal of the body controller 320 is connected to one end of the first internal dome lamp 3301 and one end of the second internal dome lamp 3302, respectively, the other end of the first internal dome lamp 3301 is connected to the movable end of the first manual switch 3401, and the other end of the second internal dome lamp 3302 is connected to the movable end of the second manual switch 3402; a first fixed end of the first manual switch 3401 is grounded, and a first fixed end of the second manual switch 3402 is grounded; the second fixed end of the first manual switch 3401 and the second fixed end of the second manual switch 3402 are respectively connected to the negative electrode of the power output end of the vehicle body controller 320. In this embodiment, when the first manual switch 3401 is in an open state, the movable end of the first manual switch 3401 is connected to the second stationary end of the first manual switch 3401; when the first manual switch 3401 is in a closed state, the movable end of the first manual switch 3401 is connected to the first fixed end of the first manual switch 3401, so that the first interior ceiling lamp 3301 is turned on when the first manual switch 3401 is closed, and is turned on or off by the illuminance of the external light collected by the ambient light sensor 3101 when the first manual switch 3401 is opened. Similarly, when the second manual switch 3402 is in an open state, the movable end of the second manual switch 3402 is connected with the second fixed end of the second manual switch 3402; when the second manual switch 3402 is in a closed state, the movable end of the second manual switch 3402 is connected to the first immovable end of the second manual switch 3402, so that the second interior ceiling lamp 3302 is turned on when the second manual switch 3402 is closed, and is turned on or off under the control of the ambient light intensity collected by the ambient light sensor 3101 when the second manual switch 3402 is opened. In one embodiment, the first manual switch 3401 and the second manual switch 3402 are independent switches; in another embodiment, the first manual switch 3401 and the second manual switch 3402 are ganged switches.
In one embodiment, in order to prevent the reverse current, a diode may be provided for the interior dome lamp, the diode and the interior dome lamp are both controlled by a manual switch circuit, and the second stationary terminal of the first manual switch 3401 and the second stationary terminal of the second manual switch 3402 are respectively connected to the negative electrode of the power output terminal of the body controller 320 through the diode. Specifically, the inner overhead lamp control circuit further comprises a first diode D1 and a second diode D2, wherein the anode of the first diode D1 is connected to the second fixed end of the first manual switch 3401, and the cathode is connected to the cathode of the power output end of the vehicle body controller 320; the anode of the second diode D2 is connected to the second stationary end of the second manual switch 3402, and the cathode is connected to the cathode of the power output end of the vehicle body controller 320.
Referring to the interior ceiling lamp control circuit shown in fig. 3, the first interior ceiling lamp 3301 is turned on when the movable terminal of the first manual switch 3401 is connected to the first stationary terminal (i.e., the first manual switch 3401 is closed). When the movable end of the first manual switch 3402 is connected with the second immovable end (i.e., the first manual switch 3401 is turned on), the comparator compares the ambient light illuminance acquired by the ambient light sensor 3101 with the preset ambient light illuminance stored in the memory where the vehicle is located, and the vehicle body controller 320 provides a first control signal when the ambient light illuminance acquired by the ambient light acquisition circuit 310 is less than or equal to the preset ambient light illuminance, and at the moment, when the whole vehicle is in a power-on state or a power-off state, the vehicle door is opened, the inner ceiling lamp is turned on, and the inner ceiling lamp is turned off until the vehicle door is closed or the energy-saving foot is closed and output; or when the power supply of the whole vehicle is switched to OFF, the inner top lamp is turned on until the preset lighting time is reached after all the four doors are closed, and then the inner top lamp is turned OFF.
The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920110117.3U CN209964348U (en) | 2019-01-22 | 2019-01-22 | An inner dome light control circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920110117.3U CN209964348U (en) | 2019-01-22 | 2019-01-22 | An inner dome light control circuit |
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| CN209964348U true CN209964348U (en) | 2020-01-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022052590A1 (en) * | 2020-09-14 | 2022-03-17 | 浙江中车电车有限公司 | Smart control system and method for interior lights of pure electric bus |
| CN119329404A (en) * | 2024-10-23 | 2025-01-21 | 北京汽车研究总院有限公司 | Control method and device for automobile ceiling light |
-
2019
- 2019-01-22 CN CN201920110117.3U patent/CN209964348U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022052590A1 (en) * | 2020-09-14 | 2022-03-17 | 浙江中车电车有限公司 | Smart control system and method for interior lights of pure electric bus |
| CN119329404A (en) * | 2024-10-23 | 2025-01-21 | 北京汽车研究总院有限公司 | Control method and device for automobile ceiling light |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Mobility ASIA SMART Technology Co.,Ltd. Assignor: GUANGZHOU XIAOPENG MOTORS TECHNOLOGY Co.,Ltd. Contract record no.: X2024980029027 Denomination of utility model: An interior ceiling light control circuit Granted publication date: 20200117 License type: Common License Record date: 20241206 |
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| EE01 | Entry into force of recordation of patent licensing contract |