CN217575010U - Car lamp control system based on acceleration sensor - Google Patents
Car lamp control system based on acceleration sensor Download PDFInfo
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- CN217575010U CN217575010U CN202121232315.0U CN202121232315U CN217575010U CN 217575010 U CN217575010 U CN 217575010U CN 202121232315 U CN202121232315 U CN 202121232315U CN 217575010 U CN217575010 U CN 217575010U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model provides an acceleration Sensor-based car lamp control system, including BCM module, G-Sensor control module and car lamp execution module, wherein, BCM module acquires vehicle state information and the road condition information in the place ahead in real time, and sends the vehicle state information and the road condition information in the place ahead that acquire to G-Sensor control module; the G-Sensor control module receives the vehicle state information and the front road condition information sent by the BCM module and sends a headlamp height adjusting instruction to the headlamp execution module; the vehicle lamp execution module receives and executes the headlamp height adjusting instruction sent by the G-Sensor control module, the problems that the height adjustment of the existing vehicle headlamp depends on four height sensors mounted on a vehicle body, the vehicle assembly steps are complicated, the production cost is high are solved, the step of mounting the height sensors on the vehicle body is omitted, the system structure is simplified, and the production cost is reduced.
Description
Technical Field
The utility model relates to a car light control technology field especially relates to a car light control system based on acceleration sensor.
Background
In the prior art, the height adjustment of the vehicle headlamp needs to rely on a vehicle height sensor, the vehicle attitude is monitored in real time through the vehicle height sensors arranged at the left front part, the right front part, the left rear part and the right rear part of the vehicle, and then the vehicle attitude information is sent to a headlamp controller so as to realize the optimal height adjustment of the headlamp, namely four height sensors need to be arranged on the vehicle body, so that the vehicle assembly steps are complicated and the production cost is high; and signals transmitted among a plurality of sensors are mostly analog signals, and the anti-interference performance and the reliability in the transmission process of the analog signals are relatively low.
Further, as the number of the electronic modules of the automobile is gradually increased, the whole electrical rack is not burdened, and the load reduction of the electronic modules of the automobile also becomes a potential trend for the development of the automobile industry.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a car light control system based on acceleration sensor has solved current vehicle headlamps's altitude mixture control and has relied on four height sensor of installing on the automobile body, and the vehicle equipment step that leads to is loaded down with trivial details, complicated and the high problem of manufacturing cost, saves the step at automobile body installation height sensor, has simplified the system constitution, has reduced manufacturing cost and has changed transmission signal into digital signal by analog signal, has effectively improved signal transmission's interference immunity and reliability.
In order to achieve the above object, the technical solution of the present invention is specifically realized as follows:
the utility model discloses a car light control system based on acceleration Sensor, including BCM module, G-Sensor control module and car light execution module, wherein, BCM module is used for acquireing vehicle state information and the road conditions information in the place ahead in real time to send the vehicle state information and the road conditions information in the place ahead that acquire to G-Sensor control module; the G-Sensor control module is used for receiving the vehicle state information and the front road condition information sent by the BCM module and sending a headlamp height adjusting instruction to the headlamp execution module; and the vehicle lamp execution module is used for receiving and executing the headlamp height adjusting instruction sent by the G-Sensor control module.
Furthermore, the BCM module is connected with the G-Sensor control module through a CAN bus, and the G-Sensor control module is connected with the vehicle lamp execution module through a CAN bus and a LIN bus.
Further, the G-Sensor control module comprises an acceleration Sensor chip, an MCU chip, a first CAN transceiver, a second CAN transceiver and a LIN transceiver, wherein the acceleration Sensor chip is used for acquiring the acceleration of the vehicle in real time; the MCU chip receives vehicle state information and front road condition information sent by the BCM module through a first CAN transceiver; and a headlamp height adjusting instruction is sent to the car light execution module in real time through the LIN transceiver, and meanwhile, a lamp brightness/off and lamp brightness control instruction is sent to the car light execution module in real time through the second CAN transceiver.
Further, the vehicle lamp execution module comprises a left vehicle lamp execution unit and a right vehicle lamp execution unit, the left vehicle lamp execution unit and the right vehicle lamp execution unit have the same structure and comprise a motor driving chip, an LED driving chip and an LED matrix management chip, wherein the motor driving chip is used for receiving a headlamp height adjusting instruction sent by the MCU chip and driving a motor according to the height adjusting instruction; the LED driving chip is used for receiving the light on/off and light brightness control instructions sent by the MCU chip and driving the LED lamp beads according to the control instructions; the LED matrix management chip is used for centralized control and management of the LED lamp beads.
Further, in the G-Sensor control module, a fifth pin PTE5 of the MCU chip is connected to a TXD pin of the first CAN transceiver U2, and a sixth pin PTE6 of the MCU chip is connected to an RXD pin of the first CAN transceiver U2; a CANH pin of the first CAN transceiver U2 and a CANL pin of the first CAN transceiver U2 are connected with the BCM module; a thirty-fourth pin PTB0 of the MCU chip is connected with a fifth pin VSB of the acceleration sensor chip, a thirty-third pin PTB1 of the MCU chip is connected with a sixth pin MISO of the acceleration sensor chip, a thirty-second pin PTB2 of the MCU chip is connected with an eighth pin SCK of the acceleration sensor chip, and a thirty-first pin PTB3 of the MCU chip is connected with a seventh pin MOSI of the acceleration sensor chip; a twenty-third pin PTD6 of the MCU chip is connected with a first pin RXD of the LIN transceiver, a twenty-second pin PTD7 of the MCU chip is connected with a fourth pin TXD of the LIN transceiver, and a sixth pin LIN of the LIN transceiver is connected with a car lamp execution module; a twenty-seventh pin PTC17 of the MCU chip is connected with a first pin TXD of the second CAN transceiver U3, a twenty-eighth pin PTC16 of the MCU chip is connected with a fourth pin RXD of the second CAN transceiver U3, and a seventh pin CANH of the second CAN transceiver U3 and a sixth pin CANL of the second CAN transceiver U3 are connected with a car light execution module.
Furthermore, the model of the MCU chip is S32K144-64.
Further, the model of the first CAN transceiver is UJA1169, and the model of the second CAN transceiver is TCAN1042.
Further, the LIN transceiver is of model TJA1021T.
The beneficial technical effects are as follows:
1. the utility model discloses a car light control system based on acceleration Sensor, including BCM module, G-Sensor control module and car light execution module, wherein, BCM module is used for acquireing vehicle state information and the road conditions information in the place ahead in real time to send the vehicle state information and the road conditions information in the place ahead that acquire to G-Sensor control module; the G-Sensor control module is used for receiving the vehicle state information and the front road condition information sent by the BCM module and sending a headlamp height adjusting instruction to the headlamp execution module; the vehicle lamp execution module is used for receiving and executing the headlamp height adjusting instruction sent by the G-Sensor control module, so that the problems of complicated vehicle assembly steps and high production cost caused by the fact that the height adjustment of the existing vehicle headlamp depends on four height sensors arranged on a vehicle body are solved, the step of arranging the height sensors on the vehicle body is omitted, the system composition is simplified, and the production cost is reduced;
2. the utility model discloses in, the BCM module pass through the CAN bus with G-Sensor control module connects, G-Sensor control module passes through the CAN bus and the LIN bus is connected with car light execution module, utilizes the digital signal line to replace the analog signal line, has effectively improved control system signal transmission's interference immunity and reliability.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments will be briefly described below.
Fig. 1 is a system structural diagram of a car light control system based on an acceleration sensor according to the present invention;
fig. 2 is a hardware schematic diagram of an MCU chip in a G-Sensor control module in an acceleration Sensor based vehicle lamp control system according to the present invention;
fig. 3 is a hardware schematic diagram of an acceleration Sensor chip in a G-Sensor control module in an acceleration Sensor-based vehicle lamp control system according to the present invention;
fig. 4 is a schematic hardware diagram of a first CAN transceiver in a G-Sensor control module in an acceleration Sensor based vehicle lamp control system according to the present invention;
fig. 5 is a hardware schematic diagram of a second CAN transceiver in a G-Sensor control module in an acceleration Sensor-based vehicle lamp control system according to the present invention;
fig. 6 is a hardware schematic diagram of an LIN transceiver in a G-Sensor control module in an acceleration Sensor-based vehicle lamp control system of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The utility model discloses a car light control system based on acceleration Sensor, see figure 1, car light control system based on acceleration Sensor includes BCM module, G-Sensor control module and car light execution module, and BCM module is connected with G-Sensor control module through the CAN bus, and G-Sensor control module is connected with car light execution module through the CAN bus and LIN bus; specifically, the BCM module is used for acquiring vehicle state information and front road condition information in real time and sending the acquired vehicle state information and the front road condition information to the G-Sensor control module; the G-Sensor control module is used for receiving the vehicle state information and the front road condition information sent by the BCM module and sending a headlamp height adjusting instruction to the headlamp execution module; the vehicle lamp execution module is used for receiving and executing the headlamp height adjusting instruction sent by the G-Sensor control module, four sensors required by headlamp height adjustment in the prior art are reduced to be one acceleration Sensor, and the wire harness cost, the hardware cost and the production, installation and debugging cost are effectively reduced.
As an embodiment of the present invention, the G-Sensor control module includes an acceleration Sensor chip and an MCU chip, wherein the acceleration Sensor chip is used to obtain the acceleration of the vehicle in real time, and preferably, the acceleration Sensor chip is an SCA3300-D01 chip of the village corporation; the MCU chip receives vehicle state information and front road condition information sent by the BCM module through the first CAN transceiver, sends a headlamp height adjusting instruction to the vehicle lamp execution module in real time through the LI N transceiver, and sends a lamp brightness/turn-off and lamp brightness control instruction to the vehicle lamp execution module in real time through the second CAN transceiver, preferably, the MCU chip selects an S32K144-64 chip of NXP company, the first CAN transceiver selects an UJA1169 chip of NXP company, the second CAN transceiver selects a TCAN1042 of Texas instruments company, and the LIN 1021 transceiver selects a JAT 1021T chip of NXP company; specifically, referring to fig. 2-6, the fifth pin PTE5 of the MCU chip is connected to the TXD pin of the first CAN transceiver U2, and the sixth pin PTE6 of the MCU chip is connected to the RXD pin of the first CAN transceiver U2; a CANH pin of the first CAN transceiver U2 and a CANL pin of the first CAN transceiver U2 are connected with the BCM module and used for receiving vehicle state information and front road condition information sent by the BCM module; a thirty-fourth pin PTB0 of the MCU chip is connected with a fifth pin VSB of the acceleration sensor chip, the VSB pin is a chip selection signal pin of the acceleration sensor chip and belongs to a control signal pin of the acceleration sensor chip, a thirty-third pin PTB1 of the MCU chip is connected with a sixth pin MISO of the acceleration sensor chip, the MISO pin is a signal input pin of the acceleration sensor chip and is used for receiving configuration and control commands of the MCU chip, a thirty-second pin PTB2 of the MCU chip is connected with an eighth pin SCK of the acceleration sensor chip, the SCK pin is a clock signal pin and is used for inputting required clock signals to the acceleration sensor chip, a thirty-first pin PTB3 of the MCU chip is connected with a seventh pin MOSI of the acceleration sensor chip, and the MOSI pin is a signal output pin of the acceleration sensor chip and is used for outputting detected acceleration information to the MCU chip; a twenty-third pin PTD6 of the MCU chip is connected with a first pin RXD of the LIN transceiver, a twenty-second pin PTD7 of the MCU chip is connected with a fourth pin TXD of the LIN transceiver, a sixth pin LIN of the LI N transceiver is connected with the car light execution module, and the MCU chip sends a head light height adjusting instruction to the left car light execution unit and the right car light execution unit in real time through an LIN signal line; the twenty-seventh pin PTC17 of the MCU chip is connected with the first pin TXD of the second CAN transceiver U3, the twenty-eighth pin PTC16 of the MCU chip is connected with the fourth pin RXD of the second CAN transceiver U3, the seventh pin CANH of the second CAN transceiver U3 and the sixth pin CANL of the second CAN transceiver U3 are connected with the car light execution module, and the MCU chip sends a light quantity/light-off and light brightness control instruction to the left car light execution unit and the right car light execution unit in real time through the CAN bus.
As an embodiment of the present invention, the car light executing module includes a left car light executing unit and a right car light executing unit, the left car light controlling unit and the right car light controlling unit have the same structure, and each of the left car light controlling unit and the right car light controlling unit includes a motor driving chip, an LED driving chip and an LED matrix managing chip, wherein the motor driving chip is used for receiving a headlamp height adjusting command sent by the MCU chip and driving the motor to rotate a certain angle; the LED driving chip is used for receiving the light on/off and light brightness control instructions sent by the MCU chip and driving the LED lamp beads; the LED matrix management chip is used for centralized control and management of the LED lamp beads, and particularly, one LED matrix management chip can be used for centralized control and management of twelve LED lamp beads and support cascade expansion.
The utility model discloses a car light control system's working process based on acceleration sensor does:
the system is powered on, each module is initialized, the vehicle carries out automatic headlamp adjustment initialization, namely, the headlamp is adjusted to a preset position when the headlamp is started, the acceleration sensor chip starts to work normally after calibration is completed, the longitudinal acceleration value of the current vehicle is measured and calculated in real time and is sent to the MCU chip in real time, the MCU chip judges the body posture of the current vehicle according to the received longitudinal acceleration value and carries out height adjustment on the headlamp according to the preset posture adjustment value, when the vehicle is in an ascending slope and a descending slope, the MCU chip calculates the included angle between the vehicle and the horizontal ground according to the obtained longitudinal acceleration value, and then judges whether the vehicle is in the ascending slope or the descending slope, and corresponding headlamp height adjustment action is executed.
The utility model discloses a car light control system based on acceleration sensor will be as four among the prior art scheme of the sensor of head-light altitude mixture control, reduce to an acceleration sensor, effectively reduced pencil cost, hardware cost and production installation and debugging cost and replace analog signal line with digital signal line, through the interference immunity of digital signal itself, effectively promote the interference immunity and the reliability of system's signal transmission.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above embodiments are only described for the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (7)
1. An acceleration sensor-based vehicular lamp control system, comprising:
the BCM module is used for acquiring vehicle state information and front road condition information in real time and sending the acquired vehicle state information and the front road condition information to the G-Sensor control module;
the G-Sensor control module is used for receiving the vehicle state information and the front road condition information sent by the BCM module and sending a headlamp height adjusting instruction to the vehicle lamp execution module;
the headlamp executing module is used for receiving and executing the headlamp height adjusting instruction sent by the G-Sensor control module;
the G-Sensor control module comprises:
the acceleration sensor chip is used for acquiring the acceleration of the vehicle in real time;
the MCU chip receives the vehicle state information and the front road condition information sent by the BCM module through a first CAN transceiver; and a headlamp height adjusting instruction is sent to the vehicle lamp execution module in real time through the LIN transceiver, and meanwhile, a lamp brightness/off and lamp brightness control instruction is sent to the vehicle lamp execution module in real time through the second CAN transceiver.
2. The acceleration-Sensor-based vehicle lamp control system according to claim 1, wherein the BCM module is connected with the G-Sensor control module through a CAN bus, and the G-Sensor control module is connected with the vehicle lamp execution module through a CAN bus and a LIN bus.
3. The acceleration sensor-based vehicle lamp control system according to claim 1, wherein the vehicle lamp executing module comprises a left vehicle lamp executing unit and a right vehicle lamp executing unit, and the left vehicle lamp controlling unit and the right vehicle lamp controlling unit are identical in structure and comprise:
the motor driving chip is used for receiving the headlamp height adjusting instruction sent by the MCU chip and driving the motor according to the height adjusting instruction;
the LED driving chip is used for receiving the light on/off and light brightness control instructions sent by the MCU chip and driving the LED lamp beads according to the control instructions;
and the LED matrix management chip is used for centralized control and management of the LED lamp beads.
4. The acceleration Sensor-based vehicle lamp control system according to claim 3, wherein in the G-Sensor control module, a fifth pin PTE5 of an MCU chip is connected with a TXD pin of a first CAN transceiver U2, and a sixth pin PTE6 of the MCU chip is connected with an RXD pin of the first CAN transceiver U2; a CANH pin of the first CAN transceiver U2 and a CANL pin of the first CAN transceiver U2 are connected with the BCM module; a thirty-fourth pin PTB0 of the MCU chip is connected with a fifth pin VSB of the acceleration sensor chip, a thirty-third pin PTB1 of the MCU chip is connected with a sixth pin MISO of the acceleration sensor chip, a thirty-second pin PTB2 of the MCU chip is connected with an eighth pin SCK of the acceleration sensor chip, and a thirty-first pin PTB3 of the MCU chip is connected with a seventh pin MOSI of the acceleration sensor chip; a twenty-third pin PTD6 of the MCU chip is connected with a first pin RXD of the LIN transceiver, a twenty-second pin PTD7 of the MCU chip is connected with a fourth pin TXD of the LIN transceiver, and a sixth pin LIN of the LIN transceiver is connected with a vehicle lamp execution module; a twenty-seventh pin PTC17 of the MCU chip is connected with a first pin TXD of the second CAN transceiver U3, a twenty-eighth pin PTC16 of the MCU chip is connected with a fourth pin RXD of the second CAN transceiver U3, and a seventh pin CANH of the second CAN transceiver U3 and a sixth pin CANL of the second CAN transceiver U3 are connected with a car light execution module.
5. The acceleration sensor-based vehicle lamp control system according to claim 4, wherein the MCU chip is S32K144-64 in model number.
6. The acceleration sensor-based vehicle light control system of claim 4, wherein the first CAN transceiver is of type UJA1169 and the second CAN transceiver is of type TCAN1042.
7. The acceleration-sensor-based vehicle lamp control system according to claim 4, wherein the LIN transceiver is of type TJA1021T.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121232315.0U CN217575010U (en) | 2021-06-03 | 2021-06-03 | Car lamp control system based on acceleration sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121232315.0U CN217575010U (en) | 2021-06-03 | 2021-06-03 | Car lamp control system based on acceleration sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115431869A (en) * | 2021-06-03 | 2022-12-06 | 常州星宇车灯股份有限公司 | Vehicle lamp control system and control method based on acceleration sensor |
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2021
- 2021-06-03 CN CN202121232315.0U patent/CN217575010U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115431869A (en) * | 2021-06-03 | 2022-12-06 | 常州星宇车灯股份有限公司 | Vehicle lamp control system and control method based on acceleration sensor |
| CN115431869B (en) * | 2021-06-03 | 2024-06-25 | 常州星宇车灯股份有限公司 | Vehicle lamp control system and control method based on acceleration sensor |
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