CN102152755A - Master-slave intelligent headlamp control system and method - Google Patents
Master-slave intelligent headlamp control system and method Download PDFInfo
- Publication number
- CN102152755A CN102152755A CN 201110073334 CN201110073334A CN102152755A CN 102152755 A CN102152755 A CN 102152755A CN 201110073334 CN201110073334 CN 201110073334 CN 201110073334 A CN201110073334 A CN 201110073334A CN 102152755 A CN102152755 A CN 102152755A
- Authority
- CN
- China
- Prior art keywords
- master
- pin
- afs
- stepping motor
- vehicle
- 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
Links
Images
Landscapes
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention discloses a master-slave intelligent headlamp control system and a master-slave intelligent headlamp control method. The system comprises a motor driving unit and an AFS (Adaptive Front-lighting System) master control unit, wherein the motor driving unit is integrated in a vehicle lamp assembly; and the AFS master control unit can be placed in a vehicle. The method comprises the following steps that the AFS master control unit serving as a master unit acquires various running information such as a steering wheel rotation angle, vehicle running speed, height of front and rear axles of a vehicle body through a CAN (Controller Area Network) bus; then an AFS kinetic model is used for carrying out resolving so as to calculate corresponding regulated angle values of a headlamp in the left and right direction and the up and down direction; the corresponding regulated angle values are converted into motion state control parameters for a horizontal stepping motor and a pitching stepping motor; and the motion state control parameters are transmitted to a horizontal stepping motor driving unit and a pitching stepping motor driving unit which are used as slave units through LIN (linear) buses so that the horizontal stepping motor driving unit and the pitching stepping motor driving unit respectively control the horizontal stepping motor and the pitching stepping motor to operate, thereby completing the dimming process of the headlamp. The master-slave intelligent headlamp control system adopts the master-slave structure and has simple circuit structure, small volume, high integration degree and low cost.
Description
Technical field
The present invention relates to automobile and measure the control field, more specifically say, relate to a kind of intelligent headlamp control system of master-slave mode.
Background technology
Self-adaptive headlamp system (Adaptive Front-Lighting System, AFS) be that a kind of automobile active safety technology is used, its function is the irradiation distance and the angle of the variation automatically regulating car light of current information (as the speed of a motor vehicle, vehicle attitude, angle of turn etc.) according to vehicle and external environment (as bend, the gradient and weather etc.), to realize the automobile safety lighting under the different kinds of roads condition.The Europe of this system and USSt are issued and are implemented, owing to only the illuminance under the varying environment has been proposed requirement in the standard, and all do not do specified in more detail for implementation method, dynamic response index etc., so the specific implementation of AFS also is varied in the reality.
Add the AFS system that loaded onto on all high-end therein vehicles such as at present common automobile famous brand name such as BMW, general, popular, Toyota, Honda, Ford.Mercedes Benz was just fastened at its high-end vehicle E in 2008 and has been equipped intelligent hernia headlight, and the designer has considered the various situations that night running may run into, and corresponding resolution policy was all arranged such as high speed, rural area, turning, greasy weather etc.The Citroen triumphant return then is that first item is with the compact sedan of follow-up steering headlight as leading attraction, what equip on its automatic flagship type is two xenon front lamps, just long-and-short distant light is xenon lamp, (headlight in the bend outside illuminates 8 ° of scope angles to scope of compromise about its headlight between 8 °-15 °, it is 15 ° that inboard headlight illuminates the scope angle), can also change simultaneously car light height up and down at the motoring condition of the speed of a motor vehicle and vehicle uphill/downhill, be a more complete AFS system.The AFS system that the Camry 240V car of Toyota is equipped with, not only can in the turning process, carry out four angular adjustment to headlight, also has the automatic optical axis control system simultaneously, it can be when the headstock elevation angle be changed by load effect the automatic compensation optical axis angle, the irradiation of maintenance level, the sensitieness of increase follow-up steering.
But inferior by comparisonly be, the autonomous vehicle brand of China is started late for the research of AFS, mostly employed AFS (self-adaptive headlamp system) system is introducing product on its brand automobile, takes turns in the automotive lighting tide of revolution current new one, is in very disadvantageous status.But domestic manufacturers attach great importance to the research and development of AFS at present, have carried out correlative study.Factory is an example with the little yarn car light in Shanghai, and the AFS research level of this factory comes out at the top at home, has been the AFS system that is used for real vehicle that developed, and tests on the sharp vehicle of Skoda sky.On function, this AFS system designs with reference to European standard, adopts the vehicle light control method based on motor, has five kinds of mode of operations, is respectively suburb pattern, city pattern, highway mode, turns to pattern and rainy day pattern.In addition, brands such as BYD, Cherry, lucky, Chang'an are are also researched and developed cooresponding AFS system for vehicle under it, believe that in the several years AFS system will become the standard configuration of middle-grade or even low and middle-grade vehicles gradually.
Producer adopts integrated AFS structure more both at home and abroad at present, and the circuit and the structure that are about to information acquisition and drive controlling all are integrated into vehicle lamp assembly.The AFS product of releasing such as dike Wei Xi company of world-class vehicle lamp manufacturer, this AFS system all is integrated in car light inside with sensor, controller and performance element, and do not carry out communication with vehicle-mounted CPU, be totally independent of other parts of automobile, its advantage is and can upgrades to car light very easily on the basis of existing vehicle, and do not need other parts are made change.But this integrated mode is had relatively high expectations for the electromagnetism disturbance rejection, and maintainability is relatively poor, needs to change whole AFS vehicle lamp assembly in case go wrong, and cost is too high.
Summary of the invention
The present invention seeks to provide a kind of and can realize that car light follow-up steering, circuit structure are simple, low-cost at the defective that prior art exists, the intelligent headlamp control system and the method for the master-slave mode of high reliability and high maintainability.
The present invention adopts following technical scheme for achieving the above object:
The intelligent headlamp control system of a kind of master-slave mode of the present invention comprises electric-motor drive unit and AFS main control unit, carries out communication by the LIN bus between electric-motor drive unit and the AFS main control unit.
Described electric-motor drive unit adopts the integrated chip of integrated LIN bus transceiver, stepper motor driver and microprocessor and car light to constitute vehicle lamp assembly together.
A kind of control method of intelligent headlamp control system of master-slave mode, the AFS main control unit is as main unit, gather steering wheel angle, Vehicle Speed by CAN (Controller Area Network) bus, vehicle body antero posterior axis height driving information, then according to resolving, obtain head lamp about and the angle value that should regulate separately on the above-below direction, and convert state of kinematic motion controlled variable to, and transmit it on the LIN bus horizontal stepping motor and pitching stepping motor.As the state of kinematic motion controlled variable that receives cooresponding stepping motor from the horizontal electric-motor drive unit of unit and pitching motor driver element respectively from the LIN bus, the control step motor action is finished the light modulation process of head lamp.
Compared with prior art, the present invention has following advantage:
1) the present invention adopts the master-slave mode design, and electric-motor drive unit and head lamp are designed to the assembly form, and volume is little, the integrated level height, and stable performance can adapt to environment inside car well, and is convenient to keep in repair replacement in the future.
2) electric-motor drive unit adopts the monolithic integrated chip, only needs a chip can finish LIN bus communication and motor-driven function, reduces volume greatly, improves electromagnetic compatibility.
3) adopt the LIN bus as the communication link between electric-motor drive unit and the AFS main control unit, cost-cutting reduces electromagnetic interference, the reliability of elevator system greatly
Description of drawings
Fig. 1 is a master-slave mode intelligence headlamp control system structural representation
Fig. 2 is the principle schematic of AFS main control unit
Fig. 3 be in the AFS main control unit s operation control assembly 21 schematic circuit diagram
Fig. 4 is the schematic circuit diagram of LIN bus transfer assembly 22 in the AFS main control unit
Fig. 5 is the schematic circuit diagram of CAN bus transfer assembly 23 in the AFS main control unit
Fig. 6 is the schematic circuit diagram of power supply module 24 in the AFS main control unit
Fig. 7 is the schematic circuit diagram of electric-motor drive unit
The specific embodiment
As shown in Figure 1, master-slave mode intelligence headlamp control system of the present invention is by the electric-motor drive unit that is installed in the vehicle lamp assembly, and the AFS main control unit that can be placed in the car is formed.The AFS main control unit is as main unit, carry out communication by other module and sensor in CAN bus and the car, obtain steering wheel angle, Vehicle Speed, various driving informations such as vehicle body antero posterior axis height, resolve according to the AFS kinetic model then, about calculating two head lamps respectively about and the angle value that should regulate separately on the above-below direction, convert state of kinematic motion controlled variable to, and transmit it on the LIN bus horizontal stepping motor and pitching stepping motor.Receive the state of kinematic motion controlled variable of cooresponding stepping motor respectively from the LIN bus as the horizontal electric-motor drive unit in the left and right sides head lamp of unit and pitching motor driver element, the control step motor action is finished the light modulation process of head lamp.
As shown in Figure 2, AFS main control unit of the present invention is by s operation control assembly 21, LIN bus transfer assembly 22, and CAN bus transfer assembly 23, and power supply module 24 constitutes.
Fig. 3 has provided the schematic circuit diagram of s operation control assembly 21.The core component of s operation control assembly 21 is MCU, and can its performance quality be related to total system and realize smoothly.Because it is a kind of to the invention belongs to the automotive safety technology, its reliability is a factor of paramount importance; And require to possess CAN bus and LIN bus communication function.The present invention selects 8 MCU S9S08DZ60 of automotive grade of FreeScale company for use for this reason, the not only embedded HCS08 kernel of this chip is used to gather, computing and control, and also built-in MSCAN module is supported CAN2.0 agreement A and B, can be directly and interior other CAN equipment of car communicate.Two embedded in addition SCI modules can be supported LIN 2.0 agreements and SAE J2602 agreement, are used for communicating by letter with motor drive module.This chip is by the quality certification of automotive grade, more can bear vehicle environment as strong motion, high electromagnetic interference than other chips.The VDD1 of S9S08DZ60 (pin 7), VDD2 (pin 39) and VDD3 (pin 58) they are power pins, it links to each other with the 5V voltage VDD of process conditioning back acquisition in the power supply module 24, and by capacitor C 9, C10 and C11 ground connection, further reduces the power supply interference.The VSS1 of S9S08DZ60 (pin 8), VSS2 (pin 38) and VSS1 (pin 55) are grounding leg, directly link to each other with ground.The RESET pin of S9S08DZ60 (pin 11) plays reset response and S1 button, resistance R 8 and manual reset circuit of capacitor C 12 common compositions.The EXTAL pin of S9S08DZ60 (pin 9) and XTAL pin (pin 10) are used for external crystal oscillator, and these two pin two ends resistance R 7 in parallel and crystal oscillator Y1 distinguish series capacity C13 and capacitor C 14 then, link to each other to final sum.The PTB2 pin of S9S08DZ60 (pin 50), TXD1 pin (pin 15) and RXD1 pin (pin 16) are SCI module pins, are used among the present invention linking to each other with pin 2, pin 4 and the pin 1 of LIN bus transfer assembly 22 MC33661.The TXCAN pin of S9S08DZ60 (pin 29) and RXCAN pin (pin 30) are the MSCAN pins, are used among the present invention linking to each other with pin 4 with the pin 1 of CAN bus transfer assembly 23 TJA1040.
Fig. 4 has provided the schematic circuit diagram of LIN bus transfer assembly 22.The LIN bus can with general serial mouth compatibility, thereby need not independent bus protocol device, only need a transceiver to convert the Transistor-Transistor Logic level of S9S08DZ60 microcontroller serial port in the s operation control assembly 21 to LIN bus level form.The MC33661 chip of the Freescale company that the LIN bus transceiver among the present invention adopts, MC33661 is the single line physical interface device that is exclusively used in the LIN bus, its power consumption is very low, the outside voltage stabilizer of may command, meet the LIN standard fully, maximum transmission rate can be higher than 100Kb/s under the fast mode, speed is 10～20Kb/s during normal operation, antijamming capability is strong, and normal, low speed, high speed and the four kinds of mode of operations of sleeping are provided, support LIN bus is waken up, the EN pin wakes up, WAKE wakes up etc. three kinds wake mode up.The EN pin of MC33661 (pin 2) directly links to each other with the PTB2 pin (pin 50) of S9S08DZ60 in the s operation control assembly 21, is used to select the mode of operation of MC33661, and when the EN pin was set to high level, MC33661 entered normal mode of operation; When the EN pin was set to low level, MC33661 entered sleep state, thereby reached the purpose that reduces power consumption.The WAKE pin of MC33661 (pin 3) is connected to a pull-up circuit by 33K resistance R 3, and this pull-up circuit is that resistance R 2 and the button S1 of 10K forms by resistance.The communications reception pin RX (pin 1) of MC33661 with send pin TX (pin 4) respectively with s operation control assembly 21 in the RXD1 pin (pin 16) of S9S08DZ60 be connected with TXD1 pin (pin 15), to finish the LIN communication function, wherein the RX pin of MC33661 needs by pull-up resistor R1 level to be pulled to 5V.Because AFS main control unit of the present invention is the major joint as the LIN bus, therefore must be between the LIN of MC33661 pin (pin 5) and INH pin (pin 8) be the pull-up resistor R4 connection of 1k Ω by resistance, parallel series diode D1, MC33661 powers on by bus when preventing power down.The V of MC33661
SUPPin (pin 7) is a power pins, the 12V power supply, and series diode D2 is connected with ground by capacitor C 1 simultaneously to prevent counter-current, disturbs to reduce.
Fig. 5 has provided the schematic circuit diagram of CAN bus transfer assembly 23.Adopt the CAN bus transceiver of NXP company among the present invention, model is TJA1040, and this chip is the interface between CAN protocol controller and the physical bus, and speed can reach 1Mb/s.TJA1040 provides differential transmission/receiving function for bus; meet the ISO11898 standard fully; support 3.3V and two kinds of voltages of 5V also, can under automotive environment, protect anti-instantaneous interference, but also low-power consumption management and Remote Wake Up function are provided bus pin.The TXD pin of TJA1040 (pin 1) and RXD pin (pin 4) respectively with s operation control assembly 21 in the TXCAN pin (pin 29) of S9S08DZ60 link to each other with RXCAN pin (pin 30).The VCC pin of TJA1040 (pin 3) is the 5V power supply, and is connected with ground by capacitor C 3, disturbs to reduce.The STB pin of TJA1040 (pin 8) is that 100 ohm resistance R 5 is connected with ground by resistance.The CANL pin of TJA1040 (pin 6) directly links to each other with CANH with the CANL of the interior CAN bus of car with CANH pin (pin 7), should be noted that, if the AFS main control unit is the endpoint node as CAN bus in the car, then between the CANL of TJA1040 pin (pin 6) and CANH pin (pin 7), connect 120 ohm resistance.
Fig. 6 has provided the schematic circuit diagram of power supply module 24.The auto use storage battery generally all is 12V at present, and in the vehicle ' process, generator voltage can reach 13V, considers the voltage fluctuation of vehicle power, and the actual power voltage range fluctuates in 9～15V.The MC33661 chip in S9S08DZ60 chip in the s operation control assembly 21, the LIN bus transfer assembly 22 and the power supply voltage of the TJA1040 chip in the CAN bus transfer assembly 23 all are 5V, and its ripple requires and should be controlled in 5%.The ripple of the required 12V voltage of drive stepping motor also should be controlled in 10% in addition.The present invention has designed power supply modulate circuit as shown in Figure 6.Vehicle-mounted 12V input end series connection wire fuse F1 and diode D3 are used for when short circuit and power supply reversal connection circuit being protected respectively, connect ground by Transient Suppression Diode Z1 then, are used to suppress the instant high-voltage pulse.With diode Z1 output and ground connect respectively common mode inductance L1 and L2, can effectively eliminate common mode interference, further reduce by electrolysis polar capacitor C4 and capacitor C 5 then and ground between interference, just can obtain more stable 12V voltage after nursing one's health like this.Adopt switching power source chip LM2576 to transfer 12V voltage to 5V, the outgoing current of this chip reaches as high as 3A, and ripple can satisfy the power and the stability requirement of AFS system less than 100mV.The VIN pin of LM2576 (pin 1) connects through the 12V voltage after the conditioning, and GND (pin 3 and pin 6) pin is connected with ground with ON pin (pin 5).The OUT pin of LM2576 (pin 2) links to each other with FB pin (pin 4) by inductance L 3 of series connection, the final required 5V voltage of output behind a rectifier diode D4 in parallel and the electrolysis polar capacitor C6 then and between the ground.
Fig. 7 is the schematic circuit diagram of electric-motor drive unit.Because electric-motor drive unit and car light are integrated into a vehicle lamp assembly, therefore require electric-motor drive unit integrated level height, cost is low, volume is little and simple in structure.Adopt the master chip of the 908E625 chip of Freescale company in the present invention as electric-motor drive unit, this chip integration is very high, embedded power module, M68HC908EY16 kernel, LIN bus transceiver and stepper motor driver, meet the automotive grade chip standard, minimum thereby the volume that whole electric-motor drive unit is taken in vehicle lamp assembly drops to.The LIN pin of 908E625 (pin 1) is directly connected on the LIN bus, in the present invention promptly with LIN bus transfer assembly 22 in the LIN pin (pin 5) of MC33661 directly link to each other, and and ground between capacitor C 8 in parallel, the interference when being used to reduce communication.The 12V voltage of nursing one's health in the power supply module 24 is electrolysis polar capacitor C7 of parallel connection over the ground, and is connected to the V of 908E625 by the diode D5 that connects
SUPPin (pin 2).The GND pin of 908E625 (pin 3) directly links to each other with ground.Four output pin HB1 (pin 8) of 908E625, HB2 (pin 7), HB3 (pin 6) and HB4 (pin 5) respectively with four pin A+ of two-phase stepping motor, A-, B+, B-directly link to each other.
Claims (3)
1. the intelligent headlamp control system of a master-slave mode comprises electric-motor drive unit and AFS main control unit, it is characterized in that carrying out communication by the LIN bus between electric-motor drive unit and the AFS main control unit.
2. the intelligent headlamp control system of a kind of master-slave mode according to claim 1, it is characterized in that described electric-motor drive unit adopts the integrated chip of integrated LIN bus transceiver, stepper motor driver and microprocessor and car light to constitute vehicle lamp assembly together.
3. the control method of the intelligent headlamp control system of a kind of master-slave mode according to claim 1, it is characterized in that the AFS main control unit is as main unit, gather steering wheel angle, Vehicle Speed by the CAN bus, vehicle body antero posterior axis height driving information, then according to resolving, obtain head lamp about and the angle value that should regulate separately on the above-below direction, and convert state of kinematic motion controlled variable to, and transmit it on the LIN bus horizontal stepping motor and pitching stepping motor.As the state of kinematic motion controlled variable that receives cooresponding stepping motor from the horizontal electric-motor drive unit of unit and pitching motor driver element respectively from the LIN bus, the control step motor action is finished the light modulation process of head lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110073334 CN102152755A (en) | 2011-03-25 | 2011-03-25 | Master-slave intelligent headlamp control system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110073334 CN102152755A (en) | 2011-03-25 | 2011-03-25 | Master-slave intelligent headlamp control system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102152755A true CN102152755A (en) | 2011-08-17 |
Family
ID=44434514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110073334 Pending CN102152755A (en) | 2011-03-25 | 2011-03-25 | Master-slave intelligent headlamp control system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102152755A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103101475A (en) * | 2013-01-25 | 2013-05-15 | 深圳市保千里电子有限公司 | Control method and system based on synchronous change of visual angle of automobile illuminating system and automobile speed |
| CN107618429A (en) * | 2016-07-14 | 2018-01-23 | 芜湖优必慧新能源科技有限公司 | A kind of automobile AFS control systems based on active safety |
| CN108116304A (en) * | 2016-11-30 | 2018-06-05 | 常州星宇车灯股份有限公司 | One kind is applied to car light multichannel motor synchronous control system |
| CN108340828A (en) * | 2017-01-23 | 2018-07-31 | 常州星宇车灯股份有限公司 | Matrix LED headlamp and its control method based on UART networks |
| CN108515902A (en) * | 2018-03-12 | 2018-09-11 | 中国重汽集团济南动力有限公司 | A kind of intelligent headlight control system and method based on CAN message |
| CN114954211A (en) * | 2021-02-19 | 2022-08-30 | 常州星宇车灯股份有限公司 | Vehicle and headlight control device thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101049808A (en) * | 2007-03-12 | 2007-10-10 | 上海小糸车灯有限公司 | Self-adaptive control device for head light of auto car |
| CN101365276A (en) * | 2008-09-22 | 2009-02-11 | 中国汽车技术研究中心 | Adaptive front lamp set control system based on network technique and controlling method thereof |
-
2011
- 2011-03-25 CN CN 201110073334 patent/CN102152755A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101049808A (en) * | 2007-03-12 | 2007-10-10 | 上海小糸车灯有限公司 | Self-adaptive control device for head light of auto car |
| CN101365276A (en) * | 2008-09-22 | 2009-02-11 | 中国汽车技术研究中心 | Adaptive front lamp set control system based on network technique and controlling method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103101475A (en) * | 2013-01-25 | 2013-05-15 | 深圳市保千里电子有限公司 | Control method and system based on synchronous change of visual angle of automobile illuminating system and automobile speed |
| CN103101475B (en) * | 2013-01-25 | 2014-10-15 | 深圳市保千里电子有限公司 | Control method and system based on synchronous change of visual angle of automobile illuminating system and automobile speed |
| CN107618429A (en) * | 2016-07-14 | 2018-01-23 | 芜湖优必慧新能源科技有限公司 | A kind of automobile AFS control systems based on active safety |
| CN108116304A (en) * | 2016-11-30 | 2018-06-05 | 常州星宇车灯股份有限公司 | One kind is applied to car light multichannel motor synchronous control system |
| CN108340828A (en) * | 2017-01-23 | 2018-07-31 | 常州星宇车灯股份有限公司 | Matrix LED headlamp and its control method based on UART networks |
| CN108515902A (en) * | 2018-03-12 | 2018-09-11 | 中国重汽集团济南动力有限公司 | A kind of intelligent headlight control system and method based on CAN message |
| CN114954211A (en) * | 2021-02-19 | 2022-08-30 | 常州星宇车灯股份有限公司 | Vehicle and headlight control device thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102152755A (en) | Master-slave intelligent headlamp control system and method | |
| CN100506606C (en) | Self-adaptive control device for head light of auto car | |
| CN101365276B (en) | Adaptive front lamp set control system based on network technique and controlling method thereof | |
| CN102658801B (en) | Controller area network (CAN) system network management method for new energy vehicle | |
| CN106850375B (en) | CAN bus receiving and transmitting system | |
| CN101456390B (en) | Communication control system applied to automobile ECU | |
| CN210629481U (en) | Two-wheeled vehicle self-balancing system and 485 communication automatic transceiver circuit therein | |
| CN205661361U (en) | Intelligence car light control system based on OBD interface | |
| CN108099533A (en) | A kind of intelligent electric-controlled suspension system of IAHC and vehicle | |
| CN102193549A (en) | Multi-field bus vehicle control network for pure electric vehicle | |
| CN202837990U (en) | Automobile network topology structure | |
| CN202657102U (en) | Automatic control system for travel deviation rectification of dual-drive steering vehicle | |
| CN109515207A (en) | A kind of intelligent driven controlling system of automatic driving vehicle | |
| CN101659244A (en) | Distributed type four-wheel-driven control system | |
| CN111953588A (en) | Vehicle-mounted T-BOX based on vehicle-mounted Ethernet | |
| CN204432503U (en) | A kind of body control system | |
| CN201119062Y (en) | A control device for car turning lamp | |
| CN201662620U (en) | Vehicular data acquisition remote transmission meter | |
| CN101251748A (en) | Bus type automobile rain scrape control method and controller | |
| CN100580593C (en) | Intelligent control device of electromotion rearview mirror of car | |
| CN101417634B (en) | Network topological structure for automobile | |
| CN211450757U (en) | Vehicle-mounted headlamp system and vehicle system | |
| CN201300795Y (en) | Vehicle ECU communication control system and automobile | |
| CN202911623U (en) | Self-adaptation curve lighting device of automobile head lamp | |
| CN208198314U (en) | A kind of intelligent automobile virtual driving cabin control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110817 |