WO2012062112A1 - 一种汽车组合后尾灯的控制系统及控制方法 - Google Patents

一种汽车组合后尾灯的控制系统及控制方法 Download PDF

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Publication number
WO2012062112A1
WO2012062112A1 PCT/CN2011/075942 CN2011075942W WO2012062112A1 WO 2012062112 A1 WO2012062112 A1 WO 2012062112A1 CN 2011075942 W CN2011075942 W CN 2011075942W WO 2012062112 A1 WO2012062112 A1 WO 2012062112A1
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WIPO (PCT)
Prior art keywords
light
body controller
driver
combined
brake
Prior art date
Application number
PCT/CN2011/075942
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English (en)
French (fr)
Inventor
陈雨康
周印东
熊立军
Original Assignee
重庆力帆电喷软件有限公司
力帆实业(集团)股份有限公司
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 重庆力帆电喷软件有限公司, 力帆实业(集团)股份有限公司 filed Critical 重庆力帆电喷软件有限公司
Priority to EA201290257A priority Critical patent/EA022426B1/ru
Priority to BR112012012508-7A priority patent/BR112012012508A2/pt
Publication of WO2012062112A1 publication Critical patent/WO2012062112A1/zh
Priority to MA34902A priority patent/MA33770B1/fr

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/2607Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic comprising at least two indicating lamps

Definitions

  • the invention relates to a control system and a control method for a rear end lamp of an automobile combination.
  • Priority of Chinese Patent Application the entire contents of which is incorporated herein by reference.
  • the invention relates to a control system and a control method for an automobile combined taillight, in particular to a rear position light, a brake light and a rear after controlling a combination of lighting, extinction and brightness change of different sections of a taillight of an automobile.
  • the rear taillights of the automobile combination usually use a light bulb or a light emitting diode (LED) as a light source, and functional modules such as a rear position light, a brake light, and a rear fog light are combined in one unit.
  • a light bulb or a light emitting diode LED
  • functional modules such as a rear position light, a brake light, and a rear fog light are combined in one unit.
  • the individual functional modules of the combined taillights are independently partitioned, separated, and combined. Since the functional modules are separated in structure, they can only be independently controlled, respectively controlled to be lit or turned off, to realize the functions of rear position lights, brake lights, rear fog lights, etc., to provide light indication signals to the rear vehicles or personnel, and express The driving state of the vehicle.
  • This kind of control method makes the rear taillights of the vehicle combination very similar in terms of light display shape or light indication mode, with few change modes and lack of novelty.
  • a first object of the present invention is to provide a control system for a vehicle combination taillight, which relies on logic to cause a group of LED light sources in a combined taillight to form a partition brightness change and a partition point. Bright multiple combinations, a variety of lighting modes for three functions of rear position light, brake light and rear fog light.
  • the control system enables the combined taillights to be released in the structural design and spatial layout, so that the lighting effect of the combined taillights is more colorful.
  • a second object of the present invention is to provide a method for controlling a taillight of an automobile, in which the lighting, extinction, brightness change, etc. of different sections of the taillights are combined by control.
  • the combination realizes three functions of rear position light, brake light and rear fog light. It breaks through the rear light, brake light and rear fog light of the traditional rear light of the automobile.
  • the three functions can only be realized by single lighting or extinction. Its function is designed to make the rear position light in the taillights of the car group
  • the three functions of the moving light and the rear fog light are novel and change, and the design of the rear taillight of the automobile is expanded, and a rich visual effect can be obtained.
  • a control system for a rear end lamp of an automobile combination comprising a rear tail light controller, a brake switch, a light combination switch, a combined rear tail light and an external connection power supply.
  • the external power source is connected to the rear taillight controller for supplying power to the rear taillight controller;
  • the rear taillight controller includes a front body controller and a rear body controller;
  • the brake switch and the light combination switch are respectively connected to the front body controller , for receiving the driver's control command and transmitting to the front body controller;
  • the output of the front body controller is connected to the rear body controller for detecting the control command of the brake switch and the light combination switch and transmitting the request signal to Rear body controller;
  • the rear body controller is connected to the combined rear taillights for controlling the operation of the combined rear taillights;
  • the combined rear taillights are integrated light sources consisting of LEDs in zones A, B and C.
  • a control method for a rear end lamp of an automobile combination includes the following steps:
  • the driver issues a control command to the brake switch and the light combination switch according to time and weather conditions;
  • the front body controller detects the request signal of the brake switch and the light combination switch
  • the front body controller sends the request signal of the brake switch and the light combination switch to the rear body controller in the form of CAN message, and the rear body controller controls the A drive, the B drive, the C drive according to the control command, and then the control combination LEDs in Zone A, Zone B, and Zone C of the rear taillights work.
  • the front body controller includes a first power circuit, a first MCU, a digital switch acquisition circuit, an analog switch acquisition circuit, and a first CAN drive circuit.
  • the input end of the first power circuit is connected to an external power source, and the output end of the first power circuit is connected to the first MCU for supplying power to the first MCU.
  • the input end of the digital switch acquisition circuit is connected to the brake switch, and the output end of the digital switch acquisition circuit is connected to the first MCU for receiving the brake signal of the brake switch and transmitting it to the first MCU.
  • the input end of the analog switch acquisition circuit is connected to the light combination switch, and the output end of the analog switch acquisition circuit is connected to the first MCU for receiving the signal of the light combination switch and transmitting it to the first MCU.
  • First MCU and first CAN The driving circuit is bidirectionally connected, and the first MCU outputs a driver's command signal through the first CAN driving circuit and receives a signal fed back by the body controller.
  • the rear body controller includes a second power circuit, a second MCU, an A driver, a B driver, a C driver, and a second CAN drive circuit.
  • the input end of the second power circuit is connected to the external power source, and the output end of the second power circuit is connected to the second MCU for supplying power to the second MCU.
  • the second MCU is bidirectionally connected to the second CAN driving circuit, and the second CAN driving circuit is bidirectionally connected to the first CAN driving circuit.
  • the first MCU can receive the command transmitted by the first MCU through the first CAN driving circuit and the second CAN driving circuit. Signal, and feedback information to the first MCU to achieve information interaction.
  • the input terminals of the A driver, the B driver and the C driver are respectively connected to the second MCU, and the output terminals are respectively connected with the LEDs of the A, B and C regions of the combined taillights, which are used for receiving the control signals of the second MCU and making Corresponding operations are carried out to achieve control of the LEDs in the combined rear taillights A, B and C zones.
  • the functions of the rear position lamp, the brake lamp, and the rear fog lamp can be realized by controlling the brightness changes of the LEDs of the A zone, the B zone, and the C zone of the combined taillights.
  • the taillight function is realized; at night, when all the LEDs of Zone A, Zone B, and Zone C are illuminated at a higher brightness, the system is implemented.
  • the function of the light at night, when the LEDs of Zone A, Zone B, and Zone C are all illuminated with high brightness, the function of the taillights and brake lights is realized; in the rain/fog days, when the LEDs of Zone A are all low-illuminated The LED in Zone B is turned off, and the LED in Zone B is illuminated at high brightness to realize the function of rear taillight and rear foglight. In rain/fog days, when all the LEDs in Zone A are illuminated with high brightness, the LEDs in Zone B are turned off, and the LEDs in Zone B are high. When the brightness is on, the brake light and rear fog light function are realized.
  • control steps of the daytime brake light are:
  • the front body controller detects a lighting brake lamp request signal of the brake switch
  • the front body controller sends the brake lamp lighting request signal to the rear body controller as a CAN message, and the combined rear taillight A driver, the B driver, and the C driver in the rear body controller drive the combined rear taillight A area,
  • the LEDs in Zone B and Zone C are all illuminated in a higher brightness mode, indicating that the vehicle is in a braking state;
  • S404 when the request signal for the brake light is turned off, the front body controller sends its request to the rear vehicle controller with the CAN message, and the rear taillight A driver, the B drive, and the C drive in the rear body controller are simultaneously Turn off the LEDs of Zone A, Zone B, and Zone C of the combined taillights to turn them off.
  • control step of the nighttime position lamp is:
  • the driver sends a control command to the light combination switch to illuminate the position light
  • the front body controller detects a request signal of the light position indicator of the light combination switch
  • the front body controller sends the rear position lamp lighting request signal to the rear body controller as a CAN message, and the rear tail lamp A driver, the B driver, and the C driver in the rear body controller drive the combination rear tail lamp A area, B
  • the LEDs of the zone and zone C are all illuminated in a low brightness mode, indicating the location and driving state of the vehicle;
  • the front body controller sends its request to the rear body controller with the CAN message, and the rear taillight A drive, the B drive, and the C drive of the rear body controller are closed.
  • the LEDs of the A, B, and C zones of the combined taillights are all extinguished.
  • the control steps of the brake light are:
  • the driver sends a control command to illuminate the position light to the light combination switch, and sends a control command for lighting the brake light to the brake switch, and the rear position light is illuminated according to steps S501-S503; S602, when the rear position When the lamp is lit, the front body controller detects a brake light lighting request signal of the brake switch;
  • the front body controller sends the brake lamp lighting request signal to the rear body controller as a CAN message, and the combined rear taillight A driver, B driver, and C driver in the rear body controller drive the combined rear taillight A area,
  • the brightness of the LEDs in Zone B and Zone C is enhanced, all of which are illuminated in the higher brightness mode, showing the position and braking state of the vehicle;
  • the front body controller sends it to the rear body controller as a CAN message, and the rear taillight A driver, B drive, and C drive in the rear body controller are simultaneously lowered.
  • the brightness of the LEDs in the A, B, and C areas of the combined taillights is restored to the brightness of the rear position lights.
  • the control step of the rear fog lamp is:
  • the driver sends a control command for the light position rear lamp and the rear fog lamp to the light combination switch, and the rear position light is illuminated according to steps S501-S503;
  • the front body controller detects a request signal of the rear fog lamp of the light combination switch
  • the front body controller sends the request for the rear fog lamp to the rear body controller with the CAN message, and the combined rear tail lamp C driver in the rear body controller drives the LED of the C area of the combined taillight to be in the high brightness mode.
  • the A-zone LED of the taillight of the A driver drive combination keeps the low-brightness lighting
  • the B-zone LED of the taillight of the B driver is combined to turn off, forming an up-and-down lighting effect, and simultaneously realizing the function of the rear position lamp and the rear fog lamp;
  • the front body controller sends the CAN message to the rear body controller, and the combined rear tail lamp A driver, B driver, and C driver in the rear body controller drive the rear tail lamp.
  • the LEDs in Zone A, Zone B, and Zone C illuminate at a lower brightness and return to the brightness of the rear position lamp.
  • control steps of the brake lamp are:
  • the driver sends a control command for lighting the rear position light and the rear fog light to the light combination switch, and issuing a control command for lighting the brake light to the brake switch, and the rear position light and the rear fog light follow the step S701. - S703 lights up;
  • the front body controller detects a request signal of the brake light of the brake switch
  • the front body controller sends the request signal for the brake light to the rear body controller as a CAN message, and the combined rear tail lamp A driver in the rear body controller drives the combined A-zone LED of the rear tail light in a higher brightness mode.
  • the front body controller when the request signal for the brake light is turned off, the front body controller sends it to the rear body controller as a CAN message, and the combined rear tail light A driver in the rear body controller drives the combined A-zone LED of the rear tail light. Resume to low brightness and keep the rear position light and rear fog light on.
  • the invention has the beneficial effects:
  • the invention breaks through the traditional design concept that the structure of the rear end lamp of the conventional automobile combination is separated, independently controlled, and the point-to-point corresponding lighting or closing is realized, and the single position control of the rear position lamp, the brake lamp and the rear fog lamp is realized.
  • the rear tail light controller of the control system of the invention can realize the rear position light by forming various combinations of the partition brightness change and the partition lighting by the logic judgment, the data communication, the drive control and the like according to the driver's intention. , brake light, rear fog light three functions of a variety of lighting modes.
  • the control system enables the combined rear taillights to be released in the structural design and spatial layout, so that the lighting effect of the taillights after combination is more colorful.
  • the control method of the invention realizes three functions of the rear position light, the brake light and the rear fog light by controlling the combination of lighting, extinction and brightness change of different sections of the tail light after combination, and breaks through the rear position light of the traditional automobile rear tail light,
  • the three functions of the brake light and the rear fog light can only rely on a single lighting or extinction to realize the design of its function, so that the three functions of the rear position light, the brake light and the rear fog light in the rear taillight of the automobile group are lighted.
  • the change is novel, and the design of the taillights of the rear combination of the car is expanded, and a rich visual effect can be obtained.
  • Figure 1 is a schematic structural view of a control system of the present invention
  • Figure 2 is a flow chart showing the steps of lighting the brake lamp of the present invention.
  • Figure 3 is a flow chart showing the steps of simultaneously lighting the taillights and the brake lamps of the present invention.
  • Figure 4 is a flow chart showing the steps of simultaneously lighting the rear tail light and the rear fog light of the present invention
  • Figure 5 is a flow chart showing the steps of simultaneously lighting the brake lamp and the rear fog lamp of the present invention.
  • Figure 6 is a flow chart showing the steps of simultaneously lighting the rear position lamp, the rear fog lamp and the brake lamp of the present invention.
  • the control system of the automobile combined rear tail lamp of the present invention comprises a rear tail light controller, a brake switch, a light combination switch, a combined rear tail light and an external power supply, wherein the external power source is connected with the rear tail light controller, Provides power to the rear taillight controller.
  • the rear taillight controller includes a front body controller and a rear body controller, and the brake switch and the light combination switch are respectively connected to the front body controller for receiving the driver's control command and transmitting to the front body controller.
  • Front body The output of the controller is connected to the rear body controller for detecting the control commands of the brake switch and the light combination switch and transmitting the request signal to the rear body controller.
  • the rear body controller is connected to the combined rear taillights for controlling the operation of the combined rear taillights.
  • the combined rear taillights are integrated light sources composed of LEDs in zones A, B and C.
  • the front body controller includes a first power circuit, a first MCU, a digital switch acquisition circuit, an analog switch acquisition circuit, and a first CAN drive circuit.
  • the input of the first power circuit is connected to an external power source, and the output of the first power circuit is connected to the first MCU, and the first power circuit is used to supply power to the first MCU.
  • the input end of the digital switch acquisition circuit is connected to the brake switch, and the output end of the digital switch acquisition circuit is connected to the first MCU, and the digital switch acquisition circuit is configured to receive the brake signal of the brake switch and transmit it to the first MCU.
  • Analog Switch The input end of the acquisition circuit is connected to the light combination switch. The output of the analog switch acquisition circuit is connected to the first MCU.
  • the analog switch acquisition circuit is used to receive the signal of the light combination switch and transmit it to the first MCU.
  • the first MCU is bidirectionally coupled to the first CAN drive circuit, and the first MCU outputs a driver's command signal to the rear body controller through the first CAN drive circuit, and receives a signal fed back by the body controller.
  • the front body controller can also add a wiper control circuit module, which is not shown in the embodiment and the figures.
  • the rear body controller includes a second power circuit, a second MCU, an A driver, a B driver, a C driver, and a second CAN driver circuit.
  • the input end of the second power circuit is connected to the external power source, and the output end of the second power circuit is connected to the second MCU, and the second power circuit is used to supply power to the second MCU.
  • the second MCU is bidirectionally connected to the second CAN driving circuit, and the second CAN driving circuit is bidirectionally connected to the first CAN driving circuit, and passes through the first CAN driving circuit and the second
  • the CAN driving circuit, the second MCU can receive the command signal transmitted by the first MCU, and feed back information to the first MCU to implement information interaction.
  • the input terminals of the A driver, the B driver, and the C driver are respectively connected to the second MCU, and the output terminals thereof are respectively connected to the A area LED, the B area LED and the C area LED of the combined tail light, the A driver, the B driver, the C driver. It is used to receive the control signal of the second MCU and perform corresponding operations, thereby realizing the control of the LEDs of the combined rear taillights A, B and C zones.
  • the rear body controller can also add a wiper drive, which is not shown in the embodiment and the figures.
  • the second power supply model is TLE4275.
  • the model number of the first MCU and the second MCU is S9S12P96J0CQK.
  • the model number of the first CAN drive circuit and the second CAN drive circuit is TJA1040.
  • the model of the A drive, B drive, and C drive is VNS3NV04.
  • the functions of the rear position lamp, the brake lamp, and the rear fog lamp can be realized by controlling the brightness changes of the LEDs of the A zone, the B zone, and the C zone of the combined taillights. Specifically: During the daytime, when the LEDs in Zone A, Zone B, and Zone C are all illuminated with low brightness, the taillight function is realized; at night, when the LEDs of Zone A, Zone B, and Zone C are all illuminated with high brightness.
  • the method by which the driver performs control using the control system of the present invention is: First, the driver issues a control command to the brake switch and the light combination switch according to time and weather conditions. Then, the front body controller detects the control commands of the brake switch and the light combination switch. Then, the front body controller sends the control command to the rear body controller in the form of a CAN message. The rear body controller controls the A drive, the B drive, and the C drive according to the control command to control the LED operation of the combined rear taillights in the A zone, the B zone, and the C zone.
  • the front body controller When the driver's control command is removed, the front body controller sends its request to the rear body controller with the CAN message, and the combined rear taillight A driver, B drive, and C drive in the rear body controller stop driving the combined taillights. LEDs in Zone A, Zone B, and Zone C.
  • FIG. 2 shows the steps of lighting the brake light of the present invention. As shown in the figure, the control steps for the daytime brake lights are:
  • the front body controller detects a request signal of the brake light of the brake switch
  • the front body controller sends the brake lamp lighting request signal to the rear body controller as a CAN message, and the combined rear taillight A driver, the B driver, and the C driver in the rear body controller drive the combined rear taillight A area,
  • the LEDs in Zone B and Zone C are all illuminated in a higher brightness mode, indicating that the vehicle is in a braking state;
  • the front body controller sends its request to the rear vehicle controller with the CAN message, and the rear taillight A driver, the B drive, and the C drive in the rear body controller simultaneously
  • the LEDs of the A zone, the B zone, and the C zone of the combined rear taillights are turned off (all are not shown).
  • Figure 3 is a control step diagram of the night position lamp at night, as shown in the figure, the control steps of the night position lamp at night are:
  • the driver sends a control command to the light combination switch to illuminate the position light
  • the front body controller detects a request signal of the light position indicator of the light combination switch
  • the front body controller sends the rear position lamp lighting request signal to the rear body controller as a CAN message, and the rear tail lamp A driver, the B driver, and the C driver in the rear body controller drive the combination rear tail lamp A area, B
  • the LEDs of the zone and the C zone are all illuminated in a low brightness mode, and are closed lighting effects, indicating the location and driving state of the vehicle;
  • the front body controller sends its request to the rear body controller with the CAN message, and the rear taillight A drive, the B drive, and the C drive of the rear body controller are closed.
  • the LEDs of the A, B, and C zones of the combined taillights are all extinguished (not shown).
  • the driver sends a control command to illuminate the position light to the light combination switch, and sends a control command for lighting the brake light to the brake switch, and the rear position light is illuminated according to steps S501-S503; S602, when the rear position When the lamp is lit, the front body controller detects a brake light lighting request signal of the brake switch;
  • the front body controller sends the brake lamp lighting request signal to the rear body controller with the CAN message, and the combined rear taillight A driver, B driver, and C driver in the rear body controller drive the combined rear taillight A area,
  • the brightness of the LEDs in Zone B and Zone C is enhanced, all of which are illuminated in the high brightness mode, and maintain the closed lighting effect, showing the position and braking state of the vehicle;
  • the front body controller sends the CAN message to the rear body controller, and the rear taillight A driver, the B drive, and the C drive in the rear body controller are simultaneously lowered.
  • the brightness of the LEDs of the A, B, and C zones of the combined taillights is restored to the brightness of the rear position lamp (not shown).
  • the driver sends a control command for the rear position light and the rear fog light to the light combination switch, and the rear position light is illuminated according to steps S501-S50;
  • the front body controller detects a request signal of the rear fog lamp of the light combination switch
  • the front body controller sends the request for the rear fog lamp to the rear body controller with the CAN message, and the combined rear tail lamp C driver in the rear body controller drives the LED of the C area of the combined taillight to be in the high brightness mode.
  • the A-zone LED of the taillight of the A driver drive combination keeps the low-brightness lighting
  • the B-zone LED of the taillight of the B driver is combined to turn off, forming an up-and-down lighting effect, and simultaneously realizing the function of the rear position lamp and the rear fog lamp;
  • the front body controller sends it to the rear body controller with the CAN message, and the combined rear tail lamp A driver, B driver, and C driver in the rear body controller drive the rear tail lamp.
  • the LEDs of Zone A, Zone B, and Zone C illuminate at a lower brightness and return to the brightness of the rear position lamp (not shown).
  • the driver sends a control command for the light position rear lamp and the rear fog lamp to the light combination switch, and sends a control command for lighting the brake light to the brake switch, and the rear position lamp and the rear fog lamp follow steps S701-S703.
  • the front body controller detects a request signal of the brake light of the brake switch
  • the front body controller sends the request signal for the brake light to the rear body controller as a CAN message, and the combined rear tail lamp A driver in the rear body controller drives the combined A-zone LED of the rear tail light in a higher brightness mode.
  • the front body controller sends the CAN message to the rear body controller, and the combined rear tail lamp A driver in the rear body controller drives the combined A-zone LED of the rear tail lamp. It returns to low-brightness lighting, keeping the rear position lamp and rear fog lamp lighting effect (not shown).
  • the B zone LED when the rear body controller determines that the rear fog lamp is lit, the B zone LED is ensured. It will not be lit, so that the combined taillights can meet the installation requirements of the relevant regulations in other modes of operation.
  • control system enables the combined rear taillights to be released in the structural design and spatial layout, breaking through the traditional rear lights of the rear lights, the brake lights and the rear fog lights. Or extinguish the design to realize its function, so that the three functions of the rear position light, the brake light and the rear fog light in the rear taillight of the automobile group are newly changed, and the design of the rear taillight of the automobile is expanded, and the rich design can be obtained. Visual effect.

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Description

一种汽车组合后尾灯的控制系统及控制方法 本申请要求于 2010 年 11 月 10 日提交中国专利局、 申请号为 201010536472.0、 发明名称为"一种汽车组合后尾灯的控制系统及控制方 法"的中国专利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及一种汽车组合尾灯的控制系统及控制方法, 具体而言是涉 及一种通过控制汽车组合尾灯不同分区的点亮、 熄灭、 亮度变化等组合来 实现后位灯、 制动灯、 后雾灯三个功能的控制系统及控制方法。
背景技术
目前, 汽车组合后尾灯通常采用灯泡或者 LED ( light emitting diode, 发光二极管)作为光源, 后位灯、 制动灯、 后雾灯等功能模块组合在一个 整体内。 由于受到空间、 发热、 法规等因素的制约, 组合后尾灯的各个功 能模块独立分区、 位置分离、 组合模式确定不变。 由于各功能模块结构分 离, 只能对它们进行独立控制, 分别控制其点亮或关闭, 实现后位灯、 制 动灯、 后雾灯等功能, 给后部车辆或人员提供光指示信号, 表达车辆的行 驶状态。 这种控制方法, 致使车辆组合后尾灯无论在灯光显示造型或者光 指示模式上都非常雷同, 变化模式少, 缺乏新颖性。
发明内容
为了克服上述现有技术中存在的缺陷, 本发明的第一个目的是提供一 种汽车组合尾灯的控制系统, 该系统依靠逻辑判断, 使组合尾灯中一组 LED光源形成分区亮度变化和分区点亮多种组合, 实现后位灯、 制动灯、 后雾灯三个功能的多种点亮模式。 本控制系统使组合后尾灯在结构设计和 空间布局上得到了释放, 使组合后尾灯的点亮效果更加丰富多彩。
为了克服上述现有技术中存在的缺陷, 本发明的第二个目的是提供一 种汽车组合尾灯的控制方法, 在该方法中, 通过控制组合后尾灯不同分区 的点亮、 熄灭、 亮度变化等组合来实现后位灯、 制动灯、 后雾灯三个功能, 突破了传统汽车后尾灯中后位灯、 制动灯、 后雾灯三个功能只能依靠单一 的点亮或熄灭来实现其功能的设计, 使汽车组后组合尾灯中的后位灯、 制 动灯、后雾灯三个功能点亮变化新颖,拓展了汽车后组合尾灯的造型设计, 可取得丰富的视觉效果。
为实现上述目的, 根据本发明的第一个方面, 本发明提供了一种汽车 组合后尾灯的控制系统, 该控制系统包括后尾灯控制器, 制动开关, 灯光 组合开关、 组合后尾灯和外接电源。 其中, 外接电源与后尾灯控制器相连, 用于向后尾灯控制器提供电能; 后尾灯控制器包括前车身控制器和后车身 控制器; 制动开关和灯光组合开关分别与前车身控制器相连, 用于接收驾 驶者的控制命令并传输给前车身控制器; 前车身控制器的输出端与后车身 控制器相连, 用于检测制动开关和灯光组合开关的控制命令并将请求信号 传输给后车身控制器; 后车身控制器与组合后尾灯相连, 用于控制组合后 尾灯的工作; 组合后尾灯是由 A区、 B区和 C区的 LED构成的一体结构 的光源。
为实现上述目的, 根据本发明的第二个方面, 本发明提供了一种汽车 组合后尾灯的控制方法, 其包括如下步骤:
A1 , 驾驶者根据时间、 天气状况向制动开关和灯光组合开关发出控制 命令;
A2, 前车身控制器检测制动开关和灯光组合开关的请求信号;
A3 , 前车身控制器将制动开关和灯光组合开关的请求信号以 CAN报 文形式发送给后车身控制器, 后车身控制器根据控制命令控制 A驱动器, B驱动器, C驱动器工作,进而控制组合后尾灯的 A区、 B区、 C区的 LED 工作。
在根据本实用新型的一种优选实施方式中, 前车身控制器包括第一电 源电路, 第一 MCU, 数字开关采集电路, 模拟开关采集电路和第一 CAN 驱动电路。 第一电源电路的输入端与外接电源相连, 第一电源电路的输出 端与第一 MCU相连,用于向第一 MCU提供电能。数字开关采集电路的输 入端与制动开关相连, 数字开关采集电路的输出端与第一 MCU相连, 用 于接收制动开关的制动信号并传输给第一 MCU。模拟开关采集电路的输入 端与灯光组合开关相连, 模拟开关采集电路的输出端与第一 MCU相连, 用于接收灯光组合开关的信号并传输给第一 MCU。第一 MCU与第一 CAN 驱动电路双向连接,第一 MCU通过第一 CAN驱动电路输出驾驶者的命令 信号并接收后车身控制器反馈的信号。
在根据本实用新型的另一种优选实施方式中, 后车身控制器包括第二 电源电路, 第二 MCU, A驱动器, B驱动器, C驱动器和第二 CAN驱动 电路。 第二电源电路的输入端与外接电源相连, 第二电源电路的输出端与 第二 MCU相连, 用于向第二 MCU提供电能。 第二 MCU与第二 CAN驱 动电路双向连接, 第二 CAN驱动电路与第一 CAN驱动电路双向连接, 通 过第一 CAN驱动电路和第二 CAN驱动电路, 第二 MCU能够接收第一 MCU传输的命令信号, 并向第一 MCU反馈信息, 实现信息交互。 A驱动 器, B驱动器, C驱动器的输入端分别与第二 MCU相连, 输出端分别与 组合后尾灯的 A区、 B区和 C区的 LED相连,其用于接收第二 MCU的控 制信号并作出相应的操作, 从而实现对组合后尾灯 A区, B 区和 C 区的 LED的控制。
在根据本实用新型的另外一种优选实施方式中, 通过控制组合后尾灯 的 A区、 B区、 C区 LED的亮度变化, 能够实现后位灯、 制动灯、 后雾灯 的功能。 在白天, 当 A区、 B区、 C区的 LED全部低亮度点亮时, 实现后 尾灯功能; 在夜间, 当 A区、 B区、 C区的 LED全部较高亮度点亮时, 实 现制动灯功能;在夜间, 当 A区、 B区、 C区的 LED全部较高亮度点亮时, 实现后尾灯和制动灯功能; 在雨 /雾天, 当 A区 LED全部低亮度点亮, B 区 LED关闭, C区 LED高亮度点亮时, 实现后尾灯和后雾灯功能; 在雨 / 雾天, 当 A区 LED全部较高亮度点亮, B区 LED关闭, C区 LED高亮度 点亮时, 实现制动灯和后雾灯功能。
在根据本发明的另一种优选实施方式中, 白天制动灯的控制步骤为:
S401 , 开始, 驾驶者向制动开关发出点亮制动灯的控制命令;
S402, 前车身控制器检测制动开关的点亮制动灯请求信号;
S403 , 前车身控制器将制动灯点亮请求信号以 CAN报文发送给后车 身控制器, 后车身控制器中的组合后尾灯 A驱动器、 B驱动器、 C驱动器 驱动组合后尾灯的 A区、 B区、 C区的 LED全部以较高亮度模式点亮, 显 示车辆处于制动状态; S404 , 当制动灯点亮的请求信号消除时, 前车身控制器将其请求以 CAN报文发送给后车控制器,后车身控制器中的合后尾灯 A驱动器、 B驱 动器、 C驱动器同时关闭组合后尾灯的 A区、 B区、 C区的 LED使之全部 熄灭。
在根据本发明的另外一种优选实施方式中,夜间后位灯的控制步骤为:
5501 , 开始, 驾驶者向灯光组合开关发出点亮后位灯的控制命令;
5502 , 前车身控制器检测灯光组合开关的点亮后位灯的请求信号;
5503, 前车身控制器将后位灯点亮请求信号以 CAN报文发送给后车 身控制器, 后车身控制器中的后尾灯 A驱动器、 B驱动器、 C驱动器驱动 组合后尾灯的 A区、 B区、 C区的 LED全部以低亮度模式点亮, 指示车辆 所处的位置和行驶状态;
5504 , 当后位灯点亮的请求信号消除时, 前车身控制器将其请求以 CAN报文发送给后车身控制器, 后车身控制器中的合后尾灯 A驱动器、 B 驱动器、 C驱动器关闭组合后尾灯的 A区、 B区、 C区的 LED使之全部熄 灭。
在根据本发明的再一种优选实施方式中, 夜间后位灯点亮时, 制动灯 的控制步骤为:
S601 , 开始, 驾驶者向灯光组合开关发出点亮后位灯的控制命令, 向 制动开关发出点亮制动灯的控制命令, 后位灯按照步骤 S501- S503点亮; S602, 当后位灯点亮时, 前车身控制器检测制动开关的制动灯点亮请 求信号;
5603, 前车身控制器将制动灯点亮请求信号以 CAN报文发送给后车 身控制器, 后车身控制器中的组合后尾灯 A驱动器、 B驱动器、 C驱动器 驱动组合后尾灯的 A区、 B区、 C区的 LED亮度增强, 全部为较高亮度模 式点亮, 显示车辆的位置和制动状态;
5604, 当制动灯点亮的请求信号消除时, 前车身控制器将其以 CAN 报文发送给后车身控制器, 后车身控制器中的合后尾灯 A驱动器、 B驱动 器、 C驱动器同时降低组合后尾灯的 A区、 B区、 C区的 LED的亮度恢复 到后位灯的亮度。 在根据本发明的再另一种优选实施方式中, 当雨 /雾天后位灯点亮时, 后雾灯的控制步骤为:
S701 , 开始, 驾驶者向灯光组合开关发出点亮后位灯和后雾灯的控制 命令, 后位灯按照步骤 S501- S503点亮;
S702, 当后位灯点亮时, 前车身控制器检测灯光组合开关的点亮后雾 灯的请求信号;
5703 , 前车身控制器将后雾灯点亮的请求以 CAN报文发送给后车身 控制器,后车身控制器中的组合后尾灯 C驱动器驱动组合后尾灯的 C区的 LED以高亮度模式点亮, 同时 A驱动器驱动组合后尾灯的 A区 LED保持 低亮度点亮, B驱动器驱动组合后尾灯的 B区 LED关闭,形成上下点亮效 果, 同时实现后位灯和后雾灯点亮功能;
5704, 当后雾灯请求信号消除时, 前车身控制器将其以 CAN报文发 送给后车身控制器, 后车身控制器中的组合后尾灯 A驱动器、 B驱动器、 C驱动器驱动组合后尾灯的 A区、 B区、 C区的 LED以较低亮度点亮, 恢 复到后位灯的亮度。
在才艮据本发明的另一种优选实施方式中, 当后位灯和后雾灯同时处于 点亮状态时, 制动灯的控制步骤为:
5801 , 开始, 驾驶者向灯光组合开关发出点亮后位灯和后雾灯的控制 命令, 向制动开关发出点亮制动灯的控制命令, 后位灯和后雾灯按照所述 步骤 S701- S703点亮;
5802, 当后位灯和后雾灯同时处于点亮状态时, 前车身控制器检测制 动开关的点亮制动灯的请求信号;
5803 , 前车身控制器将制动灯点亮的请求信号以 CAN报文发送给后 车身控制器, 后车身控制器中的组合后尾灯 A驱动器驱动组合后尾灯的 A 区 LED以较高亮度模式点亮, C驱动器驱动组合后尾灯的 C区 LED以高 亮度模式点亮, 同时实现后位灯、 后雾灯和制动灯的点亮效果;
5804, 当制动灯点亮的请求信号消除时, 前车身控制器将其以 CAN 报文发送给后车身控制器, 后车身控制器中的组合后尾灯 A驱动器驱动组 合后尾灯的 A区 LED恢复到低亮度点亮, 保持后位灯和后雾灯点亮效果。 本发明具有的有益效果:
本发明突破了传统汽车组合后尾灯结构分离、 独立控制、 点对点对应 点亮或关闭, 实现后位灯、 制动灯、 后雾灯等功能单一控制的传统设计理 念。 本发明的控制系统的后尾灯控制器能够根据驾驶员的意图, 依靠逻辑 判断、 数据通讯、 驱动控制等方法使组合后尾灯形成分区亮度变化和分区 点亮的多种组合, 实现了后位灯、 制动灯、 后雾灯三个功能的多种点亮模 式。 本控制系统使组合后尾灯在结构设计和空间布局上得到了释放, 使组 合后尾灯的点亮效果更加丰富多彩。
本发明的控制方法通过控制组合后尾灯不同分区的点亮、 熄灭、 亮度 变化等组合来实现后位灯、 制动灯、 后雾灯三个功能, 突破了传统汽车后 尾灯中后位灯、 制动灯、 后雾灯三个功能只能依靠单一的点亮或熄灭来实 现其功能的设计, 使汽车组后组合尾灯中的后位灯、 制动灯、 后雾灯三个 功能点亮变化新颖, 拓展了汽车后组合尾灯的造型设计, 能够取得丰富的 视觉效果。
附图说明
图 1是本发明控制系统的结构示意图;
图 2是本发明制动灯点亮的步骤流程图;
图 3是本发明后尾灯和制动灯同时点亮的步骤流程图;
图 4是本发明后尾灯和后雾灯同时点亮的步骤流程图;
图 5是本发明制动灯和后雾灯同时点亮的步骤流程图;
图 6是本发明后位灯、 后雾灯和制动灯同时点亮的步骤流程图。
具体实施方式
为使本发明的目的、 技术方案及优点更加清楚明白, 以下参照附图对 本发明进一步详细说明。
如图 1所示, 本实用新型的汽车组合后尾灯的控制系统包括后尾灯控 制器, 制动开关, 灯光组合开关、 组合后尾灯和外接电源, 其中, 外接电 源与后尾灯控制器相连, 用于向后尾灯控制器提供电能。 后尾灯控制器包 括前车身控制器和后车身控制器, 制动开关和灯光组合开关分别与前车身 控制器相连, 用于接收驾驶者的控制命令并传输给前车身控制器。 前车身 控制器的输出端与后车身控制器相连, 用于检测制动开关和灯光组合开关 的控制命令并将请求信号传输给后车身控制器。 后车身控制器与组合后尾 灯相连, 用于控制组合后尾灯的工作, 组合后尾灯是由 A区、 B区和 C区 的 LED构成的一体结构的光源。
前车身控制器包括第一电源电路, 第一 MCU, 数字开关采集电路, 模 拟开关采集电路和第一 CAN驱动电路。 在该前车身控制器中, 第一电源 电路的输入端与外接电源相连, 第一电源电路的输出端与第一 MCU相连, 该第一电源电路用于向第一 MCU提供电能。 数字开关采集电路的输入端 与制动开关相连, 数字开关采集电路的输出端与第一 MCU相连, 该数字 开关采集电路用于接收制动开关的制动信号并传输给第一 MCU。模拟开关 采集电路的输入端与灯光组合开关相连, 模拟开关采集电路的输出端与第 一 MCU相连, 该模拟开关采集电路用于接收灯光组合开关的信号并传输 给第一 MCU。 第一 MCU与第一 CAN驱动电路双向连接, 该第一 MCU 通过第一 CAN驱动电路输出驾驶者的命令信号给后车身控制器, 并接收 后车身控制器反馈的信号。 前车身控制器还可增加雨刮控制电路模块, 该 模块在实施例及图中没有示出。
后车身控制器包括第二电源电路, 第二 MCU, A驱动器, B驱动器, C驱动器和第二 CAN驱动电路。第二电源电路的输入端与外接电源相连, 第二电源电路的输出端与第二 MCU相连, 该第二电源电路用于向第二 MCU提供电能。第二 MCU与第二 CAN驱动电路双向连接,第二 CAN驱 动电路与第一 CAN驱动电路双向连接, 通过第一 CAN驱动电路和第二
CAN驱动电路, 第二 MCU能够接收第一 MCU传输的命令信号, 并向第 一 MCU反馈信息, 实现信息交互。 A驱动器, B驱动器, C驱动器的输 入端分别与第二 MCU相连,它们的输出端分别与组合后尾灯的 A区 LED , B区 LED和 C区 LED相连, 该 A驱动器, B驱动器, C驱动器用于接收 第二 MCU的控制信号并作出相应的操作, 从而实现对组合后尾灯 A区, B区和 C区 LED的控制。后车身控制器还可增加雨刮驱动器,该雨刮驱动 器在实施例及图中没有示出。
在本实施方式中, 前车身控制器和后车身控制器的第一电源电路、 第 二电源电路的型号是 TLE4275。 第一 MCU 和第二 MCU 的型号是 S9S12P96J0CQK。 第一 CAN 驱动电路和第二 CAN 驱动电路的型号是 TJA1040。 A驱动器, B驱动器, C驱动器的型号是 VNS3NV04。
利用本发明的控制系统,通过控制组合后尾灯的 A区、 B区、 C区 LED 的亮度变化, 能够实现后位灯、 制动灯、 后雾灯的功能。 具体是: 在白天, 当 A区、 B区、 C区的 LED全部低亮度点亮时, 实现后尾灯功能;在夜间, 当 A区、 B区、 C区的 LED全部较高亮度点亮时, 实现制动灯功能; 在夜 间, 当 A区、 B区、 C区的 LED全部较高亮度点亮时, 实现后尾灯和制动 灯功能; 在雨 /雾天, 当 A区 LED全部低亮度点亮, B区 LED关闭, C区 LED高亮度点亮时, 实现后尾灯和后雾灯功能; 在雨 /雾天, 当 A区 LED 全部较高亮度点亮, B区 LED关闭, C区 LED高亮度点亮时, 实现制动 灯和后雾灯功能。
驾驶者利用本发明的控制系统进行控制的方法是: 首先, 驾驶者根据 时间、 天气状况向制动开关和灯光组合开关发出控制命令。 然后, 前车身 控制器检测制动开关和灯光组合开关的控制命令。 再后, 前车身控制器将 控制命令以 CAN报文形式发送给后车身控制器。 后车身控制器根据控制 命令控制 A驱动器, B驱动器, C驱动器工作, 进而控制组合后尾灯的 A 区、 B区、 C区的 LED工作。 当驾驶者的控制命令消除时, 前车身控制器 将其请求以 CAN报文发向后车身控制器,后车身控制器中的组合后尾灯 A 驱动器、 B驱动器、 C驱动器停止驱动组合后尾灯的 A区、 B区、 C区的 LED。
图 2示出了本发明制动灯点亮的步骤。 如图中所示, 白天制动灯的控 制步骤为:
S401 , 开始, 驾驶者向制动开关发出点亮制动灯的控制命令;
S402, 前车身控制器检测制动开关的点亮制动灯的请求信号;
S403 , 前车身控制器将制动灯点亮请求信号以 CAN报文发送给后车 身控制器, 后车身控制器中的组合后尾灯 A驱动器、 B驱动器、 C驱动器 驱动组合后尾灯的 A区、 B区、 C区的 LED全部以较高亮度模式点亮, 显 示车辆处于制动状态; S404 , 当制动灯点亮的请求信号消除时, 前车身控制器将其请求以 CAN报文发向后车控制器,后车身控制器中的合后尾灯 A驱动器、 B驱动 器、 C驱动器同时关闭组合后尾灯的 A区、 B区、 C区的 LED使之全部熄 灭(图中未示出)。
图 3是夜间后位灯的控制步骤图, 如图中所示, 夜间后位灯的控制步 骤为:
5501 , 开始, 驾驶者向灯光组合开关发出点亮后位灯的控制命令;
5502 , 前车身控制器检测灯光组合开关的点亮后位灯的请求信号;
5503, 前车身控制器将后位灯点亮请求信号以 CAN报文发送给后车 身控制器, 后车身控制器中的后尾灯 A驱动器、 B驱动器、 C驱动器驱动 组合后尾灯的 A区、 B区、 C区的 LED全部以低亮度模式点亮, 并且为封 闭点亮效果, 指示车辆所处的位置和行驶状态;
5504 , 当后位灯点亮的请求信号消除时, 前车身控制器将其请求以 CAN报文发向后车身控制器,后车身控制器中的合后尾灯 A驱动器、 B驱 动器、 C驱动器关闭组合后尾灯的 A区、 B区、 C区的 LED使之全部熄灭 (图中未示出)。
夜间后位灯点亮时, 制动灯的控制步骤如图 4所示:
S601 , 开始, 驾驶者向灯光组合开关发出点亮后位灯的控制命令, 向 制动开关发出点亮制动灯的控制命令, 后位灯按照步骤 S501- S503点亮; S602, 当后位灯点亮时, 前车身控制器检测制动开关的制动灯点亮请 求信号;
5603, 前车身控制器将制动灯点亮请求信号以 CAN报文发向后车身 控制器, 后车身控制器中的组合后尾灯 A驱动器、 B驱动器、 C驱动器驱 动组合后尾灯的 A区、 B区、 C区的 LED亮度增强, 全部为较高亮度模式 点亮, 并保持封闭点亮效果, 显示车辆的位置和制动状态;
5604, 当制动灯点亮的请求信号消除时, 前车身控制器将其以 CAN 报文发向后车身控制器,后车身控制器中的合后尾灯 A驱动器、 B驱动器、 C驱动器同时降低组合后尾灯的 A区、 B区、 C区的 LED的亮度恢复到后 位灯的亮度(图中未示出)。 雨 /雾天后位灯点亮时, 后雾灯的控制步骤如图 5所示:
5701 , 开始, 驾驶者向灯光组合开关发出点亮后位灯和后雾灯的控制 命令, 后位灯按照步骤 S501- S50点亮;
5702, 当后位灯点亮时, 前车身控制器检测灯光组合开关的点亮后雾 灯的请求信号;
5703 , 前车身控制器将后雾灯点亮的请求以 CAN报文发送给后车身 控制器,后车身控制器中的组合后尾灯 C驱动器驱动组合后尾灯的 C区的 LED以高亮度模式点亮, 同时 A驱动器驱动组合后尾灯的 A区 LED保持 低亮度点亮, B驱动器驱动组合后尾灯的 B区 LED关闭,形成上下点亮效 果, 同时实现后位灯和后雾灯点亮功能;
5704, 当后雾灯请求信号消除时, 前车身控制器将其以 CAN报文发 向后车身控制器, 后车身控制器中的组合后尾灯 A驱动器、 B驱动器、 C 驱动器驱动组合后尾灯的 A区、 B区、 C区的 LED以较低亮度点亮, 恢复 到后位灯的亮度(图中未示出)。
后位灯和后雾灯同时处于点亮状态时,制动灯的控制步骤如图 6所示:
5801 , 开始, 驾驶者向灯光组合开关发出点亮后位灯和后雾灯的控制 命令, 向制动开关发出点亮制动灯的控制命令, 后位灯和后雾灯按照步骤 S701- S703点亮;
5802, 当后位灯和后雾灯同时处于点亮状态时, 前车身控制器检测制 动开关的点亮制动灯的请求信号;
5803 , 前车身控制器将制动灯点亮的请求信号以 CAN报文发送给后 车身控制器, 后车身控制器中的组合后尾灯 A驱动器驱动组合后尾灯的 A 区 LED以较高亮度模式点亮, C驱动器驱动组合后尾灯的 C区 LED以高 亮度模式点亮, 同时实现后位灯、 后雾灯和制动灯的点亮效果;
S804, 当制动灯点亮的请求信号消除时, 前车身控制器将其以 CAN 报文发向后车身控制器, 后车身控制器中的组合后尾灯 A驱动器驱动组合 后尾灯的 A区 LED恢复到低亮度点亮,保持后位灯和后雾灯点亮效果(图 中未示出)。
在本实施方式中, 当后车身控制器判断后雾灯点亮时, 保证 B区 LED 不会被点亮, 从而使组合后尾灯在其它模式工作下能够满足相关法规对安 装间距的要求。
由此可见, 本控制系统使组合后尾灯在结构设计和空间布局上得到了 释放, 突破了传统汽车后尾灯中后位灯、 制动灯、 后雾灯三个功能只能依 靠单一的点亮或熄灭来实现其功能的设计, 使汽车组后组合尾灯中的后位 灯、 制动灯、 后雾灯三个功能点亮变化新颖, 拓展了汽车后组合尾灯的造 型设计, 能够取得丰富的视觉效果。
当然, 本发明还可有其他多种实施例, 在不背离本发明精神及其实质 变形, 但这些相应的改变和变形都应属于本发明所附的权利要求的保护范 围。

Claims

权 利 要 求
1、 一种汽车组合后尾灯的控制系统, 包括后尾灯控制器, 制动开关, 灯光组合开关、 组合后尾灯和外接电源, 其特征在于,
所述外接电源与所述后尾灯控制器相连, 用于向所述后尾灯控制器提 供电能;
所述后尾灯控制器包括前车身控制器和后车身控制器;
所述制动开关和灯光组合开关分别与所述前车身控制器相连, 用于接 收驾驶者的控制命令并传输给所述前车身控制器;
所述前车身控制器的输出端与所述后车身控制器相连, 用于检测所述 制动开关和灯光组合开关的控制命令并将请求信号传输给所述后车身控制 器;
所述后车身控制器与所述组合后尾灯相连, 用于控制所述组合后尾灯 的工作;
所述组合后尾灯是由 A区、 B区和 C区的 LED构成的一体结构的光 源。
2、如权利要求 1所述的一种汽车组合后尾灯的控制系统,其特征在于, 所述前车身控制器包括第一电源电路、 第一 MCU、数字开关采集电路、模 拟开关采集电路和第一 CAN驱动电路;
所述第一电源电路的输入端与外接电源相连, 所述第一电源电路的输 出端与第一 MCU相连,用于向第一 MCU提供电能;所述数字开关采集电 路的输入端与所述制动开关相连, 所述数字开关采集电路的输出端与第一 MCU相连, 用于接收制动开关的制动信号并传输给第一 MCU; 所述模拟 开关采集电路的输入端与所述灯光组合开关相连, 所述模拟开关采集电路 的输出端与第一 MCU相连, 用于接收灯光组合开关的信号并传输给第一 MCU;所述第一 MCU与所述第一 CAN驱动电路双向连接,所述第一 MCU 通过所述第一 CAN驱动电路输出驾驶者的命令信号并接收后车身控制器 反馈的信号。
3、如权利要求 1或 2所述的一种汽车组合后尾灯的控制系统,其特征 在于, 所述后车身控制器包括第二电源电路、 第二 MCU、 A驱动器、 B驱 动器、 C驱动器和第二 CAN驱动电路;
所述第二电源电路的输入端与外接电源相连, 所述第二电源电路的输 出端与第二 MCU相连, 用于向第二 MCU提供电能; 所述第二 MCU与所 述第二 CAN驱动电路双向连接,所述第二 CAN驱动电路与所述第一 CAN 驱动电路双向连接, 通过所述第一 CAN驱动电路和所述第二 CAN驱动电 路, 所述第二 MCU能够接收所述第一 MCU传输的命令信号, 并向第一 MCU反馈信息, 实现信息交互; 所述 A驱动器, B驱动器, C驱动器的 输入端分别与所述第二 MCU相连, 输出端分别与组合后尾灯的 A区、 B 区和 C区的 LED相连,其用于接收第二 MCU的控制信号并作出相应的操 作, 从而实现对组合后尾灯 A区, B区和 C区的 LED的控制。
4、 一种汽车组合后尾灯的控制方法, 其特征在于, 包括如下步骤: A1 , 驾驶者根据时间、 天气状况向制动开关和灯光组合开关发出控制 命令;
A2, 前车身控制器检测制动开关和灯光组合开关的请求信号;
A3 , 前车身控制器将制动开关和灯光组合开关的请求信号以 CAN报 文形式发送给后车身控制器, 后车身控制器根据控制命令控制 A驱动器, B驱动器, C驱动器工作,进而控制组合后尾灯的 A区、 B区、 C区的 LED 工作。
5、如权利要求 4所述的一种汽车组合后尾灯的控制方法,其特征在于, 白天制动灯的控制步骤为:
5401 , 开始, 驾驶者向制动开关发出点亮制动灯的控制命令;
5402 , 前车身控制器检测制动开关的点亮制动灯请求信号;
5403, 前车身控制器将制动灯点亮请求信号以 CAN报文发送给后车 身控制器, 后车身控制器中的组合后尾灯 A驱动器、 B驱动器、 C驱动器 驱动组合后尾灯的 A区、 B区、 C区的 LED全部以较高亮度模式点亮, 显 示车辆处于制动状态;
5404 , 当制动灯点亮的请求信号消除时, 前车身控制器将其请求以 CAN报文发送给后车控制器,后车身控制器中的合后尾灯 A驱动器、 B驱 动器、 C驱动器同时关闭组合后尾灯的 A区、 B区、 C区的 LED使之全部 熄灭。
6、如权利要求 4所述的一种汽车组合后尾灯的控制方法,其特征在于, 夜间后位灯的控制步骤为:
S501 , 开始, 驾驶者向灯光组合开关发出点亮后位灯的控制命令; S502, 前车身控制器检测灯光组合开关的点亮后位灯的请求信号;
S503 , 前车身控制器将后位灯点亮请求信号以 CAN报文发送给后车 身控制器, 后车身控制器中的后尾灯 A驱动器、 B驱动器、 C驱动器驱动 组合后尾灯的 A区、 B区、 C区的 LED全部以低亮度模式点亮, 指示车辆 所处的位置和行驶状态;
S504 , 当后位灯点亮的请求信号消除时, 前车身控制器将其请求以
CAN报文发送给后车身控制器, 后车身控制器中的合后尾灯 A驱动器、 B 驱动器、 C驱动器关闭组合后尾灯的 A区、 B区、 C区的 LED使之全部熄 灭。
7、如权利要求 4所述的一种汽车组合后尾灯的控制方法,其特征在于, 夜间后位灯点亮时, 制动灯的控制步骤为:
5601 , 开始, 驾驶者向灯光组合开关发出点亮后位灯的控制命令, 向 制动开关发出点亮制动灯的控制命令, 后位灯按照所述步骤 S501- S503点 亮;
5602, 当后位灯点亮时, 前车身控制器检测制动开关的制动灯点亮请 求信号;
5603 , 前车身控制器将制动灯点亮请求信号以 CAN报文发送给后车 身控制器, 后车身控制器中的组合后尾灯 A驱动器、 B驱动器、 C驱动器 驱动组合后尾灯的 A区、 B区、 C区的 LED亮度增强, 全部为较高亮度模 式点亮, 显示车辆的位置和制动状态;
S604, 当制动灯点亮的请求信号消除时, 前车身控制器将其以 CAN 报文发送给后车身控制器, 后车身控制器中的合后尾灯 A驱动器、 B驱动 器、 C驱动器同时降低组合后尾灯的 A区、 B区、 C区的 LED的亮度恢复 到后位灯的亮度。
8、如权利要求 4所述的一种汽车组合后尾灯的控制方法,其特征在于, 雨 /雾天后位灯点亮时, 后雾灯的控制步骤为:
5701 , 开始, 驾驶者向灯光组合开关发出点亮后位灯和后雾灯的控制 命令, 后位灯按照所述步骤 S501- S503点亮;
5702, 当后位灯点亮时, 前车身控制器检测灯光组合开关的点亮后雾 灯的请求信号;
5703 , 前车身控制器将后雾灯点亮的请求以 CAN报文发送给后车身 控制器,后车身控制器中的组合后尾灯 C驱动器驱动组合后尾灯的 C区的 LED以高亮度模式点亮, 同时 A驱动器驱动组合后尾灯的 A区 LED保持 低亮度点亮, B驱动器驱动组合后尾灯的 B区 LED关闭,形成上下点亮效 果, 同时实现后位灯和后雾灯点亮功能;
5704, 当后雾灯请求信号消除时, 前车身控制器将其以 CAN报文发 送给后车身控制器, 后车身控制器中的组合后尾灯 A驱动器、 B驱动器、 C驱动器驱动组合后尾灯的 A区、 B区、 C区的 LED以较低亮度点亮, 恢 复到后位灯的亮度。
9、如权利要求 4所述的一种汽车组合后尾灯的控制方法,其特征在于, 当后位灯和后雾灯同时处于点亮状态时, 制动灯的控制步骤为:
S801 , 开始, 驾驶者向灯光组合开关发出点亮后位灯和后雾灯的控制 命令, 向制动开关发出点亮制动灯的控制命令, 后位灯和后雾灯按照所述 步骤 S701- S703点亮;
S802, 当后位灯和后雾灯同时处于点亮状态时, 前车身控制器检测制 动开关的点亮制动灯的请求信号;
5803 , 前车身控制器将制动灯点亮的请求信号以 CAN报文发送给后 车身控制器, 后车身控制器中的组合后尾灯 A驱动器驱动组合后尾灯的 A 区 LED以较高亮度模式点亮, C驱动器驱动组合后尾灯的 C区 LED以高 亮度模式点亮, 同时实现后位灯、 后雾灯和制动灯的点亮效果;
5804, 当制动灯点亮的请求信号消除时, 前车身控制器将其以 CAN 报文发送给后车身控制器, 后车身控制器中的组合后尾灯 A驱动器驱动组 合后尾灯的 A区 LED恢复到低亮度点亮, 保持后位灯和后雾灯点亮效果。
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