CN108528322B - Headlamp control system and vehicle - Google Patents
Headlamp control system and vehicle Download PDFInfo
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- CN108528322B CN108528322B CN201710124420.4A CN201710124420A CN108528322B CN 108528322 B CN108528322 B CN 108528322B CN 201710124420 A CN201710124420 A CN 201710124420A CN 108528322 B CN108528322 B CN 108528322B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
- B60Q1/08—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically
- B60Q1/085—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically due to special conditions, e.g. adverse weather, type of road, badly illuminated road signs or potential dangers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
- B60Q1/1415—Dimming circuits
- B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/05—Special features for controlling or switching of the light beam
- B60Q2300/056—Special anti-blinding beams, e.g. a standard beam is chopped or moved in order not to blind
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/10—Indexing codes relating to particular vehicle conditions
- B60Q2300/11—Linear movements of the vehicle
- B60Q2300/112—Vehicle speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/10—Indexing codes relating to particular vehicle conditions
- B60Q2300/12—Steering parameters
- B60Q2300/122—Steering angle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/30—Indexing codes relating to the vehicle environment
- B60Q2300/31—Atmospheric conditions
- B60Q2300/312—Adverse weather
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/30—Indexing codes relating to the vehicle environment
- B60Q2300/32—Road surface or travel path
- B60Q2300/324—Road inclination, e.g. uphill or downhill
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/30—Indexing codes relating to the vehicle environment
- B60Q2300/33—Driving situation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/30—Indexing codes relating to the vehicle environment
- B60Q2300/33—Driving situation
- B60Q2300/332—Driving situation on city roads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/30—Indexing codes relating to the vehicle environment
- B60Q2300/33—Driving situation
- B60Q2300/333—Driving situation on suburban or country roads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/30—Indexing codes relating to the vehicle environment
- B60Q2300/33—Driving situation
- B60Q2300/337—Tunnels or bridges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/40—Indexing codes relating to other road users or special conditions
- B60Q2300/45—Special conditions, e.g. pedestrians, road signs or potential dangers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention provides a headlamp control system and a vehicle. The headlamp control system includes: the detection device is used for detecting road condition information and vehicle states; the headlamp is provided with an LVDS interface and comprises a DMD chip, an adjusting mechanism and a driving piece, wherein the adjusting mechanism comprises a front wedge angle piece and a rear wedge angle piece which are arranged in parallel, the front wedge angle piece and the rear wedge angle piece are both wedge-shaped and are provided with a thin end and a thick end, and the driving piece drives the front wedge angle piece and the rear wedge angle piece to rotate around the rotation axis of the driving piece; and the controller is provided with an LVDS interface, the LVDS interface of the controller is communicated with the LVDS interface of the headlamp, and the controller is used for controlling the plurality of micro mirrors in the DMD chip according to the road condition information and controlling the driving piece to drive the front wedge angle piece and the rear wedge angle piece to rotate so as to deflect the target light type according to the vehicle state. The controller of the system is communicated with the headlamp through the LVDS interface, the requirement of the high-resolution headlamp on the data transmission quantity can be met, and the stability and the reliability of the headlamp are improved.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a headlamp control system and a vehicle.
Background
An Adaptive Front-lighting System (AFS) is an intelligent light adjusting System. The AFS automatically controls the headlamps to adjust the up-down and left-right illumination angles in real time by sensing information such as driver operation, vehicle running state, road surface change and weather environment, and provides the best road illumination effect for the driver.
At present, the adjustment of the lighting angle of the automatic control headlamp in real time in the related art is usually only applicable to the traditional AFS control system, namely: generally, the up-down and left-right deflection control of the car lamp can only be simply realized, and the real adaptive light type conversion requirement cannot be met, because the traditional system structure is difficult to meet the requirements of higher and higher resolution and continuous improvement of control real-time performance.
Disclosure of Invention
In view of the above, the present invention is directed to a headlamp control system, which can automatically implement light type conversion and light type deflection in multiple directions, so as to meet the lighting requirement of a headlamp and improve driving safety, and in addition, a controller communicates with the headlamp through an LVDS (Low-Voltage Differential Signaling) interface, so as to meet the requirement of high-resolution headlamp on data transmission amount and improve the stability and reliability of the headlamp.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a headlamp control system, comprising: the detection device is used for detecting road condition information and vehicle states; the headlamp comprises a DMD chip, an adjusting mechanism and a driving piece, wherein the adjusting mechanism comprises a front wedge angle piece and a rear wedge angle piece which are arranged in parallel, the front wedge angle piece and the rear wedge angle piece are both wedge-shaped and are provided with a thin end and a thick end, and the driving piece drives the front wedge angle piece and the rear wedge angle piece to rotate around the rotation axis of the driving piece; the controller is used for respectively controlling the multiple micro mirrors in the DMD chip according to the road condition information so that the headlamp projects a target light type, and controlling the driving piece to drive the front wedge angle piece and the rear wedge angle piece to rotate to respective target angles according to the vehicle state so as to deflect the target light type.
Further, preceding wedge angle piece with back wedge angle piece all constructs for the light-permeable light-transmitting piece, the leading flank of preceding wedge angle piece and the contained angle of trailing flank with the leading flank of back wedge angle piece and the contained angle of trailing flank equals, preceding wedge angle piece and back wedge angle piece coaxial arrangement.
Further, the detection device includes: the controller identifies the current road condition, pedestrians and vehicles according to the images, position information and radar data acquired by the road condition information detection module, determines a target light type according to the identified current road condition, pedestrians and vehicles, and performs on-off control or deflection control on a plurality of micromirrors in the DMD chip according to the target light type to realize corresponding anti-dazzling and reminding; the vehicle state detection module comprises a vehicle body CAN receiving module for receiving vehicle speed and steering wheel angle signals sent by a vehicle body CAN bus.
Furthermore, the vehicle state detection module comprises a vehicle speed sensor and a corner sensor, the vehicle speed sensor is used for detecting vehicle speed, the corner sensor is used for detecting a steering wheel corner, and the controller controls the driving piece to drive the front wedge corner piece and the rear wedge corner piece to rotate according to the vehicle speed and the steering wheel corner so as to achieve corresponding deflection of the target light type.
Further, the driving member includes: the wedge angle piece is characterized by comprising a first driving piece and a second driving piece, wherein the first driving piece is used for driving the rear wedge angle piece to rotate around the rotation axis of the first driving piece, and the second driving piece is used for driving the front wedge angle piece to rotate around the rotation axis of the first driving piece.
Further, the headlamp comprises a left headlamp and a right headlamp, the number of the LVDS interfaces of the controller is two, the LVDS interface of the headlamp comprises an LVDS interface corresponding to the left headlamp and an LVDS interface corresponding to the right headlamp, and the two LVDS interfaces of the controller are respectively and correspondingly communicated with the LVDS interface of the left headlamp and the LVDS interface of the right headlamp.
Furthermore, the head lamp also comprises an LIN interface, the head lamp is connected with an LIN bus of the vehicle body through the LIN interface, so that when the controller fails and/or communication failure occurs between the controller and the head lamp, pre-stored high and low beam light types are received from the LIN bus, and autonomous control is achieved according to the high and low beam light types.
Further, the head-light still includes the CAN interface, the head-light passes through the CAN interface links to each other with automobile body CAN bus, with the controller breaks down and/or the controller with when communication trouble appears between the head-light, follow receive the far and near light type of prestoring on the CAN bus, in order to according to far and near light type realizes autonomic control.
Further, the first driving member is a first motor, and the second driving member is a second motor.
Further, the headlamps are laser headlamps.
According to the headlamp control system, the detection device detects the road condition information and the vehicle state, the controller determines the light type and the deflection direction according to the road condition information and the vehicle state, and then the controller communicates with the headlamp through the LVDS interface to realize on-off control or deflection control of a DMD chip in the headlamp and rotation angle adjustment of a front wedge angle sheet and a rear wedge angle sheet, so that light type conversion and deflection of the light type in multiple directions can be automatically realized, the driving safety is improved while the illumination requirement of the headlamp is met, in addition, the controller communicates with the headlamp through the LVDS interface, the requirement of high-resolution headlamp on transmission data quantity can be met, and the stability and reliability of the headlamp are improved.
Another objective of the present invention is to provide a vehicle, which can automatically implement light type conversion and light type deflection in multiple directions, so as to meet the lighting requirements of the headlamps and improve driving safety, and in addition, the controller communicates with the headlamps through the LVDS interface, so as to meet the data transmission requirements of the headlamps with high resolution and improve the stability and reliability of the headlamps.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a vehicle provided with a headlamp control system as described in any of the above embodiments.
The vehicle and the headlamp control system have the same advantages compared with the prior art, and are not described in detail herein.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of an adjustment mechanism for a headlamp in a headlamp control system according to an embodiment of the present invention;
FIG. 2 is a block diagram of a headlamp control system according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a headlamp control system according to an embodiment of the present invention.
Description of reference numerals:
the adjusting mechanism 100, the front wedge angle piece 102, the rear wedge angle piece 101, the first motor 103, the second motor 104, the first gear ring 105, the first gear 107, the headlamp control system 200, the detection device 210, the headlamp 220 and the controller 230.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Before describing a headlamp control system according to an embodiment of the present invention, a headlamp of a vehicle will be described first.
The headlamp is provided with an LVDS interface, and comprises a light source assembly; the light emitted by the light source component is emitted to the DMD chip after passing through the lens component; adjustment mechanism, the warp light after the DMD chip reflection passes adjustment mechanism, adjustment mechanism includes: the wedge-shaped corner joint comprises a front wedge angle piece and a rear wedge angle piece, wherein the front wedge angle piece and the rear wedge angle piece are juxtaposed, and the front wedge angle piece and the rear wedge angle piece are wedge-shaped and are provided with a thin end and a thick end; the driving piece is used for driving the front wedge angle piece and the rear wedge angle piece to rotate around the rotation axis of the driving piece, wherein the headlamp is a laser headlamp.
As shown in fig. 1, the light emitted from the light source assembly sequentially passes through the adjusting mechanism 100 and the lamp housing and then exits for illuminating the front of the vehicle, wherein the adjusting mechanism 100 can adjust the light emitted from the light source assembly to change the exiting direction of the light, for example, the adjusting mechanism 100 can be controlled to deflect the light left, right, upward or downward.
The adjusting mechanism 100 may include a front wedge angle piece 102 and a rear wedge angle piece 101, the front wedge angle piece 102 and the rear wedge angle piece 101 are juxtaposed, that is, the front wedge angle piece 102 and the rear wedge angle piece 101 are arranged side by side, the front wedge angle piece 102 and the rear wedge angle piece 101 are both wedge-shaped and have a thin end and a thick end, the front wedge angle piece 102 and the rear wedge angle piece 101 are both configured as light-permeable components, and at least one of the front wedge angle piece 102 and the rear wedge angle piece 101 is configured to be rotatable around its rotation axis, wherein the front wedge angle piece 102 and the rear wedge angle piece 101 are both configured as light-permeable members (such as glass), and an included angle between a front side surface and a rear side surface of the front wedge angle piece 102 is equal to an included angle between a front side surface and a rear side surface of the rear wedge angle piece 101, and the front wedge angle piece 102 and the rear wedge angle piece 101 are arranged coaxially.
By rotating the front wedge angle piece 102 and the rear wedge angle piece 101, the deflection direction of the light entering the front wedge angle piece 102 and the rear wedge angle piece 101 can be changed, and the deflection angle of the light can be changed by changing the distance the light travels in the rear wedge angle piece 101 and the front wedge angle piece 102.
Because the two wedge angle pieces are respectively controlled by the driving mechanism, the two wedge angle pieces can be independently controlled and do not interfere with each other, so that the adjustment response speed is increased, the adjustment range is relatively wider, and the multidirectional adjustment of light in left, right, upward and downward directions and the adjustment of the coupling direction can be realized.
Fig. 2 is a block diagram of a headlamp control system according to an embodiment of the present invention.
As shown in fig. 2, in combination with the above, a headlamp control system 200 according to an embodiment of the present invention includes: a detection device 210, a headlamp 220 (vehicle lamp and control system), and a controller 230 (identification and control module).
The detecting device 210 is used for detecting the traffic information and the vehicle status. The headlamp 220 has an LVDS interface. The controller 230 has an LVDS interface, the LVDS interface of the controller 230 communicates with the LVDS interface of the head lamp 220, and the controller 230 is configured to control the plurality of micromirrors in the DMD chip respectively according to the road condition information to enable the head lamp 220 to project a target light pattern, and control the driving member to drive the front wedge angle piece and the rear wedge angle piece to rotate to respective target angles according to the vehicle state, so as to deflect the target light pattern.
The detection device 210 includes: a road condition information detection module and a vehicle state detection module, as shown in fig. 3, the road condition information detection module includes an image acquisition module, a GPS positioning module and a radar, the controller 230 identifies the current road condition, pedestrians and vehicles according to the image, position information and radar data acquired by the road condition information detection module, determines the target light pattern according to the identified current road condition, pedestrians and vehicles, and performs on-off control or deflection control on the micromirrors in the DMD chip according to the target light pattern to achieve corresponding anti-dazzling and reminding, that is, the controller 230 can identify the road condition, pedestrian and vehicle (such as expressway, urban road, rural road, bad weather, uphill and downhill, tunnel entrance and exit, left and right turning, etc.) according to the identified road condition, pedestrian and vehicle, confirm the projection area, transmit corresponding graphic information for the head-light through LVDS interface communication to carry out on-off control or deflection control to a plurality of micromirrors in the DMD chip respectively according to the target light type that the projection area corresponds, thereby make the head-light shine out the target light type, realize that corresponding is prevent dazzling and remind.
As shown in fig. 3, the vehicle state detection module includes a vehicle body CAN receiving module to receive the vehicle speed and steering wheel angle signals transmitted from the vehicle body CAN bus. Namely: vehicle information such as vehicle speed and steering wheel information such as steering wheel turning angle and vehicle height is acquired through a vehicle body CAN bus, then a self-adaptive adjusting motor (driving piece) is controlled to drive wedge angle pieces (a front wedge angle piece and a rear wedge angle piece) to act, and then deflection adjustment of the upper side, the lower side, the left side and the right side of a target light type is achieved, for example, during steering, follow-up steering is achieved.
In addition, the vehicle state detection module may further include a vehicle speed sensor and a steering angle sensor, the vehicle speed sensor is configured to detect a vehicle speed, the steering angle sensor is configured to detect a steering wheel steering angle, and the controller 230 controls the driving member to drive the front wedge angle piece and the rear wedge angle piece to rotate according to the vehicle speed and the steering wheel steering angle, so as to implement corresponding deflection of the target light type, that is: the adaptive adjustment motor (driving piece) is controlled to drive the wedge angle pieces (the front wedge angle piece and the rear wedge angle piece) to act, so that the deflection adjustment of the upper part, the lower part, the left part and the right part of the target light type is realized, and the follow-up steering is realized during steering, for example.
In one embodiment of the invention, the driving member comprises a first driving member for driving the rear cleat to rotate about its own rotational axis and a second driving member for driving the front cleat to rotate about its own rotational axis. As shown in fig. 3, the first driving member is a first motor (e.g., adaptive control motor 1), and the second driving member is a second motor (e.g., adaptive control motor 2).
Further, referring again to fig. 3, the headlamp includes a left headlamp and a right headlamp, the LVDS interfaces of the controller are two, the LVDS interfaces of the headlamp include an LVDS interface corresponding to the left headlamp and an LVDS interface corresponding to the right headlamp, and the two LVDS interfaces of the controller 230 are respectively in communication with the LVDS interfaces of the left headlamp and the LVDS interfaces of the right headlamp. Namely: the controller 230 communicates with the left headlamp via the LVDS1, and the controller 230 communicates with the right headlamp via the LVDS 2.
According to the headlamp control system provided by the embodiment of the invention, the detection device detects the road condition information and the vehicle state, the controller determines the light type and the deflection direction according to the road condition information and the vehicle state, and then the controller is communicated with the headlamp through the LVDS interface to realize the on-off control or the deflection control of a DMD chip in the headlamp and the adjustment of the rotation angle of the front wedge angle sheet and the rear wedge angle sheet, so that the light type conversion and the deflection of the light type in multiple directions can be automatically realized, the driving safety is improved while the illumination requirement of the headlamp is met, in addition, the controller is communicated with the headlamp through the LVDS interface, the transmission data quantity requirement of the high-resolution headlamp can be met, and the stability and the reliability of the headlamp are improved.
Referring again to fig. 3, the head lamp 220 of the head lamp control system 200 further includes an LIN interface, and the head lamp is connected to the body LIN bus through the LIN interface, so that when the controller 230 fails and/or a communication failure occurs between the controller 230 and the head lamp 220, the pre-stored high and low beam light patterns are received from the LIN bus, and thus the autonomous control is realized according to the high and low beam light patterns. That is, the head lamp 220 performs interaction with vehicle information through LIN communication for calling a pre-stored high and low beam type by determining a vehicle driving state, for example, when a failure occurs in the recognition and control unit 230 or when the communication between the control unit 230 and the head lamp 220 fails: and calling pre-stored high beam light distribution curve data when the vehicle speed is more than or equal to 60km/h, and calling pre-stored low beam light distribution curve data when the vehicle speed is less than 60 km/h. Therefore, the stability and the reliability of the headlamp can be further improved, and the driving safety is improved.
Of course, the head lamp 220 may further include a CAN interface, and the head lamp 220 further includes the CAN interface, and the head lamp is connected with the car body CAN bus through the CAN interface to when the controller 230 breaks down and/or communication fault occurs between the controller 230 and the head lamp 220, receive the far and near light type of prestoring from the CAN bus, in order to realize independent control according to far and near light type. That is, the head lamp 220 performs interaction with vehicle information through CAN communication, and is used to call a pre-stored high beam and low beam type by determining a vehicle driving state when the recognition and control unit 230 fails or the communication between the control unit 230 and the head lamp 220 fails, for example: and calling pre-stored high beam light distribution curve data when the vehicle speed is more than or equal to 60km/h, and calling pre-stored low beam light distribution curve data when the vehicle speed is less than 60 km/h. Therefore, the stability and the reliability of the headlamp can be further improved, and the driving safety is improved.
According to the headlamp control system provided by the embodiment of the invention, the light type conversion and the light type deflection in multiple directions can be automatically realized, the driving safety is improved while the illumination requirement of the headlamp is met, in addition, the controller is communicated with the headlamp through the LVDS interface, the requirement of high-resolution headlamp on data transmission quantity can be met, and the stability and reliability of the headlamp are improved.
Furthermore, the embodiment of the invention discloses a vehicle which is provided with the headlamp control system according to any one of the embodiments, the vehicle can automatically realize the light type conversion and the light type deflection in multiple directions, the driving safety is improved while the lighting requirement of the headlamp is met, in addition, the controller is communicated with the headlamp through the LVDS interface, the requirement of the high-resolution headlamp on the transmission data quantity can be met, and the stability and the reliability of the headlamp are improved.
In addition, other configurations and functions of the vehicle according to the embodiment of the present invention are known to those skilled in the art, and are not described herein in detail in order to reduce redundancy.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A headlamp control system, comprising:
the detection device is used for detecting road condition information and vehicle states;
the headlamp comprises a DMD chip, an adjusting mechanism and a driving piece, wherein the adjusting mechanism comprises a front wedge angle piece and a rear wedge angle piece which are arranged in parallel, the front wedge angle piece and the rear wedge angle piece are both wedge-shaped and are provided with a thin end and a thick end, and the driving piece drives the front wedge angle piece and the rear wedge angle piece to rotate around the rotation axis of the driving piece;
the controller is used for respectively controlling a plurality of micro mirrors in the DMD chip according to the road condition information so that the headlamp projects a target light type, and controlling the driving piece to drive the front wedge angle piece and the rear wedge angle piece to rotate to respective target angles according to the vehicle state so as to deflect the target light type;
the headlamp further comprises an LIN interface or a CAN interface, the headlamp is connected with an LIN bus of a vehicle body through the LIN interface, or the headlamp is connected with a CAN bus of the vehicle body through the CAN interface, so that when the controller fails and/or communication failure occurs between the controller and the headlamp, pre-stored high and low beam light types are received from the LIN bus or the CAN bus, and autonomous control is achieved according to the high and low beam light types;
the detection device includes: the vehicle state detection module comprises a vehicle speed sensor and a corner sensor, the vehicle speed sensor is used for detecting vehicle speed, the corner sensor is used for detecting a steering wheel corner, and the controller controls the driving piece to drive the front wedge corner piece and the rear wedge corner piece to rotate according to the vehicle speed and the steering wheel corner so as to achieve corresponding deflection of the target light type.
2. The headlamp control system according to claim 1, wherein the front cleat and the rear cleat are each configured as a light transmissive member that is light transmissive, the front and rear sides of the front cleat having an included angle equal to the included angle of the front and rear sides of the rear cleat, the front and rear cleats being coaxially arranged.
3. The headlamp control system according to claim 1, wherein the detecting means further comprises:
the controller identifies the current road condition, pedestrians and vehicles according to the images, position information and radar data acquired by the road condition information detection module, determines a target light type according to the identified current road condition, pedestrians and vehicles, and performs on-off control or deflection control on a plurality of micromirrors in the DMD chip according to the target light type to realize corresponding anti-dazzling and reminding;
the vehicle state detection module comprises a vehicle body CAN receiving module for receiving vehicle speed and steering wheel angle signals sent by a vehicle body CAN bus.
4. The headlamp control system of claim 1, wherein the actuator comprises: the wedge angle piece is characterized by comprising a first driving piece and a second driving piece, wherein the first driving piece is used for driving the rear wedge angle piece to rotate around the rotation axis of the first driving piece, and the second driving piece is used for driving the front wedge angle piece to rotate around the rotation axis of the first driving piece.
5. The headlamp control system according to claim 1, wherein the headlamp comprises a left headlamp and a right headlamp, the LVDS interface of the controller is two, the LVDS interface of the headlamp comprises an LVDS interface corresponding to the left headlamp and an LVDS interface corresponding to the right headlamp, and the two LVDS interfaces of the controller are respectively in communication with the LVDS interface of the left headlamp and the LVDS interface of the right headlamp.
6. The headlamp control system of claim 4, wherein the first actuator is a first motor and the second actuator is a second motor.
7. A vehicle, characterized in that the vehicle is provided with a headlamp control system as claimed in any of claims 1-6.
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| CN109927625A (en) * | 2019-03-12 | 2019-06-25 | 北京小马智行科技有限公司 | A kind of information projecting method and device |
| US11273752B2 (en) * | 2019-04-12 | 2022-03-15 | Caterpillar Paving Products Inc. | Illumination control system for mobile machines |
| CN112537249B (en) * | 2019-09-23 | 2022-05-03 | 长城汽车股份有限公司 | Vehicle headlamp adjustment system, automobile and method |
| US10823358B1 (en) * | 2019-12-19 | 2020-11-03 | Valeo Vision | Device and method of directing a light via rotating prisms |
| CN114056224A (en) * | 2020-08-07 | 2022-02-18 | 比亚迪股份有限公司 | Control method of vehicle headlamp and vehicle |
| CN114585133A (en) * | 2020-12-01 | 2022-06-03 | 常州星宇车灯股份有限公司 | Control system and method for multi-light source headlamp |
| CN114670744A (en) * | 2022-04-22 | 2022-06-28 | 中国第一汽车股份有限公司 | Vehicle lamp control method, vehicle lamp control device and vehicle |
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