CN209666944U

CN209666944U - One kind can abblendbar intelligent headlamp system

Info

Publication number: CN209666944U
Application number: CN201821777686.5U
Authority: CN
Inventors: 徐健
Original assignee: Changzhou Xingyu Automotive Lighting Systems Co Ltd
Current assignee: Changzhou Xingyu Automotive Lighting Systems Co Ltd
Priority date: 2018-10-31
Filing date: 2018-10-31
Publication date: 2019-11-22
Anticipated expiration: 2028-10-31

Abstract

The utility model discloses one kind can abblendbar intelligent headlamp system, including preposition image processor, car light controller and executing agency；Wherein, the preposition image processor is connected with car light controller, and sends front vehicles location dependent information；The car light controller is for transmission control command after receiving above-mentioned location information and handling to executing agency, and the executing agency realizes the adjusting to big light irradiation height by adjusting motor vertical, to play abblendbar purpose.The utility model is realized in road level height there are the headlamp lighting effect for improving this vehicle while in the case where drop, effectively preventing to front truck glare of driver effect again, substantially increases the safety of nighttime driving.

Description

One kind can abblendbar intelligent headlamp system

Technical field

The utility model relates to a kind of automotive electronics lighting system field of intelligent control more particularly to one kind can abblendbar Intelligent headlamp system.

Background technique

With the rapid development of intelligent automobile electronics, headlamp also develops towards intelligentized direction.ALS,AFS,ADB Equal intelligent automotive lights also come into being.Wherein, ADB intelligent automotive light mainly avoids distance light to the glare effect of front driver；And ALS and AFS intelligent automotive light mainly according to sensor automatic sensing bodywork height and comes back and angle of bowing, and automatically adjusts headlight Irradiating angle.It wherein, is also only to be applied to vehicle turning although AFS intelligent automotive light can perceive road surface road conditions In the case where curved, increase range of exposures.

For above-mentioned intelligent automotive light functionally all without solving because of road level height fall, dipped headlight causes front vehicles The problem of dazzling the eyes.Under above-mentioned surface conditions, driver is improved in the degree of danger of nighttime driving.

Utility model content

For the problems in background technique, the utility model provide one kind can abblendbar intelligent headlamp system, mesh Be: ALS, AFS and ADB intelligent automotive light for solving current mainstream can not solve in the case where road surface appearance horizontal drop, To front, driver is caused the problem of dazzling the eyes, while obtaining better illuminating effect.

To achieve the goals above, the utility model is achieved through the following technical solutions:

One kind can abblendbar intelligent headlamp system, including preposition image processor, car light controller and executing agency； Wherein, the preposition image processor is connected with car light controller, and sends front vehicles location dependent information；The car light control For device processed for transmission control command after receiving above-mentioned location information and handling to executing agency, the executing agency passes through adjusting Motor vertical realizes the adjusting to big light irradiation height, to play abblendbar purpose.

Preferably, the preposition image processor is connected by CAN bus with car light controller；Car light controller passes through LIN bus is connected with executing agency.

It further, mainly include MCU chip, dsp processor, memory chip, SoC inside the preposition image processor Processor and CAN transceiver, the dsp processor are connected with SoC processor, the SoC processor respectively with memory chip and MCU chip connection, the MCU chip are connect with CAN transceiver.

Preferably, it is connected between the dsp processor and SoC processor by I2C bus.

Preferably, it is connected between the SoC processor and MCU chip by SPL bus.

Further, total lamp controller mainly includes MCU chip, CAN transceiver, LIN transceiver, and the CAN is received Hair device is connect by CAN bus with MCU chip, and the MCU chip is connect by LIN bus with LIN transceiver.

Further, the executing agency includes LIN transceiver, MCU chip, stepper motor driver chip and motor vertical Stepper motor, the LIN transceiver are connect by LIN bus with MCU chip, the MCU chip and stepper motor driver chip It is connected, the stepper motor driver chip driving motor vertical stepper motor work.

Preferably, it is connected between the MCU chip and stepper motor driver chip by SPL bus.

Compared with the existing technology, the beneficial effects of the utility model are as follows:

(1) the utility model is realized in road level height there are in the case where drop, effectively prevents driving front truck The headlamp lighting effect for improving this vehicle while the person's of sailing glare effect again, substantially increases the safety of nighttime driving.

(2) the utility model good compatibility is applicable on the intelligent automotive light with AFS and ADB function, without increasing volume Outer hardware cost.In addition, the utility model has saved connection wiring harness, has reduced failure rate by CAN bus communication mode.

Detailed description of the invention

Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model Sign, objects and advantages will become more apparent upon:

Fig. 1 is that the utility model one kind can abblendbar intelligent headlamp system architecture diagram.

Fig. 2 is that the utility model one kind can abblendbar intelligent headlamp system operation schematic diagram.

Fig. 3 is that the utility model one kind can abblendbar intelligent headlamp system car light height adjusting method schematic diagram.

Fig. 4 be it is a kind of can in abblendbar intelligent headlamp system preposition image processor dsp processor circuit diagram.

Fig. 5 be it is a kind of can in abblendbar intelligent headlamp system preposition image processor MCU chip circuit diagram.

Fig. 6 be it is a kind of can in abblendbar intelligent headlamp system preposition image processor memory circuit diagram.

Fig. 7 is that a kind of the SoC processor of preposition image processor and memory can connect in abblendbar intelligent headlamp system Connect partial circuit diagram.

Fig. 8 be it is a kind of can in abblendbar intelligent headlamp system preposition image processor SoC processor and MCU chip With the coupling part DSP circuit diagram.

Specific embodiment

To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below In conjunction with specific embodiment, the utility model is further described.

Embodiment:

As shown in Fig. 1, Fig. 4-Fig. 8, one kind of the utility model can abblendbar intelligent headlamp system, including preposition figure As processor device, car light controller and executing agency.

The preposition image processor acquisition vehicle front traffic information and the related letter that front vehicles position is calculated Breath, it is internal mainly to include: MCU chip, DSP processing chip, memory chip, SoC processor and CAN transceiver, the DSP Processor is connected with SoC processor, and the SoC processor is connect with memory chip and MCU chip respectively, the MCU chip with CAN transceiver connection.

Preferably, the dsp processor in preposition image processor uses the DS90UB913A-Q1 of TI company；SoC processing Device uses the DRA628PC7IZKKQ1 of TI company；Memory uses ISSI core into the IS46TR16128B- of company 125KBLA2；MCU chip uses the XC2234L-20F66L of Infineon company；CAN chip uses NXP company TJA1041AT。

The car light controller is mainly used for receiving and handling front vehicles location dependent information, will be final after processing Control command is sent to executing agency by LIN bus.It mainly includes MCU chip, CAN transceiver, LIN transceiver, described CAN transceiver is connect by CAN bus with MCU chip, and the MCU chip is connect by LIN bus with LIN transceiver.

Preferably, the MCU chip of car light controller uses the MC9S12G192 chip of NXP company, CAN transceiver uses The TJA1041AT of NXP company, LIN chip use the TJA1021 of NXP company.

The executing agency is mainly used for receiving and executing the control command of car light controller transmission, according to control command tune The flexible of vertical step motor bulb is saved, to realize the adjusting to car light irradiation height, and then plays abblendbar purpose.Its Including LIN transceiver, MCU chip, stepper motor driver chip and motor vertical stepper motor, the LIN transceiver passes through LIN Bus is connect with MCU chip, and the MCU chip is connected with stepper motor driver chip, the stepper motor driver chip driving The work of motor vertical stepper motor.

Preferably, the L9942 stepper motor that the motor drive ic of executing agency uses ST Microelectronics drives Chip, MCU chip use the MC9S12G192 chip of NXP company.

Specific work process:

As shown in figure 3, a kind of abblendbar intelligent headlamp system, the course of work the following steps are included:

(1) vehicle launch powers on, and when dipped beam is initially opened, can execute the initialization action of dipped headlight motor, make dipped beam Lamp position is set in init state；

(2) when front does not have vehicle, this vehicle dipped headlight height maintains elemental height.

(3) when vehicle occurs in front, preposition image processor is calculated by collected front road conditions video image The height value of front vehicles position out.

(4) preposition image processor is by going out front vehicles position height deviation with preset standard value comparing calculation, And car light controller is sent to by CAN bus.After car light controller receives relevant information, calculates stepper motor and need to adjust The step Numerical of section is simultaneously sent to executing agency by LIN bus.Stepper motor driver chip in executing agency is according to receiving Control command by adjust vertical step motor bulb it is flexible come realize adjust car light height operation, play abblendbar Purpose.

(5) if meeting terminates, when external image processor identification front is without vehicle, dim head lights can be controlled and be restored to just Begin height.

The utility model concrete operating principle:

As shown in Fig. 2, test vehicle is equipped with the utility model intelligent headlamp system, target vehicle is general vehicle；In figure When dotted line is expressed as not carrying out light adjustment according to technical solution described in the utility model, model that dim head lights is irradiated It encloses；Solid line is expressed as after adjusting by technical solutions of the utility model, actual dim head lights range of exposures.On in Fig. 2 The case where when portion's schematic diagram illustrates level land meeting, test the light-illuminating height of vehicle without adjusting, range of exposures position In target vehicle pilot's line of vision hereinafter, will not cause to dazzle the eyes to opponent vehicle and range of exposures is maximum；Schematic diagram in the middle part of Fig. 2 is shown When testing vehicle geopotentia and being higher than target truck position, if test vehicle head lamp height is not adjusted, irradiate Range is located within target vehicle pilot's line of vision (dotted portion in figure), will cause and dazzles the eyes to vehicle driver.At this point, according to this reality With new technique scheme, (most right half in such as Fig. 2 can be adjusted downwards below car light height to target car light automatically by testing vehicle Shown in figure), while obtaining highest luminance range avoid that target vehicle driver is caused to dazzle the eyes.Similarly, when test vehicle topography When height is lower than target vehicle (lower part Fig. 2 schematic diagram), although glare effect will not be caused to target vehicle driver, test vehicle Range of exposures is reduced by road conditions reason.At this time according to technical solution described in the utility model, testing vehicle can be automatically to up-regulation Car light height is saved, expands the irradiation model of test vehicle head lamp as far as possible in the case where not causing to dazzle the eyes to target vehicle driver It encloses.

Claims

1. one kind can abblendbar intelligent headlamp system, it is characterised in that: including preposition image processor, car light controller and Executing agency；Wherein, the preposition image processor is connected with car light controller, and sends front vehicles location dependent information； The car light controller is for transmission control command after receiving above-mentioned location information and handling to executing agency, the execution machine Structure realizes the adjusting to big light irradiation height by adjusting motor vertical, to play abblendbar purpose.

2. one kind as described in claim 1 can abblendbar intelligent headlamp system, it is characterised in that: at the preposition image Reason device is connected by CAN bus with car light controller；Car light controller is connected by LIN bus with executing agency.

3. one kind as claimed in claim 1 or 2 can abblendbar intelligent headlamp system, it is characterised in that: the preposition figure As mainly including MCU chip, dsp processor, memory chip, SoC processor and CAN transceiver inside processor, at the DSP Reason device is connected with SoC processor, and the SoC processor is connect with memory chip and MCU chip respectively, the MCU chip and CAN Transceiver connection.

4. one kind as claimed in claim 3 can abblendbar intelligent headlamp system, it is characterised in that: the dsp processor It is connect between SoC processor by I2C bus.

5. one kind as claimed in claim 3 can abblendbar intelligent headlamp system, it is characterised in that: the SoC processor It is connect between MCU chip by SPL bus.

6. one kind as claimed in claim 1 or 2 can abblendbar intelligent headlamp system, it is characterised in that: total lamp control Device processed mainly includes MCU chip, CAN transceiver, LIN transceiver, and the CAN transceiver is connected by CAN bus and MCU chip It connects, the MCU chip is connect by LIN bus with LIN transceiver.

7. one kind as claimed in claim 1 or 2 can abblendbar intelligent headlamp system, it is characterised in that: the execution machine Structure includes LIN transceiver, MCU chip, stepper motor driver chip and motor vertical stepper motor, and the LIN transceiver passes through LIN bus is connect with MCU chip, and the MCU chip is connected with stepper motor driver chip, and the stepper motor driver chip drives Dynamic motor vertical stepper motor work.

8. one kind as claimed in claim 7 can abblendbar intelligent headlamp system, it is characterised in that: the MCU chip with It is connected between stepper motor driver chip by SPL bus.