Energy Optimization in Automotive Lighting

LED lighting system that provides adjustable color temperature in a form factor similar to traditional fluorescent tubes. The system uses a combination of LEDs that emit light in two predetermined color temperature ranges, like daylight and tungsten. The LEDs are interspersed in the same tube to create a continuous light source. This allows changing the color temperature without physically swapping bulbs or gels.

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Adaptive high and low beam matrix car lighting system using miniLED arrays that provides improved visibility and safety for night driving. The system has a miniLED array instead of traditional headlight sources. It dynamically adjusts the beam pattern based on surroundings using sensors. A heat dissipation system prevents overheating. The miniLED array is integrated on a circuit board with a heat sink, fan, and temperature control. The system optimizes heat dissipation, stabilizes the miniLEDs, and reduces brightness if they overheat.

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Vehicle lighting control system that allows individual control of each LED light in a vehicle's lighting array. The system uses a two-stage power supply circuit with a boost chip followed by a matrix chip to provide adjustable voltage and current to each LED. This allows precise dimming and brightness control of individual lights. The system also integrates communication interfaces like CAN, SPI, and NTC to provide diagnostics, temperature monitoring, and fault detection.

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A red phosphor for LED lighting that has high reflectance in a specific wavelength range from the emission peak wavelength to 800 nm and that includes a crystal phase with a specific composition, such as SrLi(Al, Ga)3N4:Eu. The phosphor has a red emission peak with favorable characteristics like narrow bandwidth and high intensity, as well as improved efficiency, color rendering, and conversion compared to existing red phosphors.

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Heat dissipating structure for automotive LED headlights to improve brightness, power and lifetime while keeping the lights cool. The structure integrates the radiator, heat pipes and LED board into a single unit to efficiently transfer heat from the LEDs to the fins. This eliminates the need for separate parts that can compromise heat dissipation. The integrated structure allows quick heat transfer and dissipation, reducing LED temperatures to improve brightness and longevity. The design also enables higher power LEDs without overheating. By welding the parts together, heat is directly conducted from the LEDs to the fins. This ensures better heat transfer compared to separate components.

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A vehicle headlight system using LEDs that achieves low and high beam patterns from a single module. The system has two LED elements mounted on a common heatsink. In low beam mode, one LED is operated at high power while the other is off. In high beam mode, the second LED is operated at high power while the first is dimmed. The disjunctive operation reduces thermal load on the heatsink. The LEDs can be dimmed using PWM or using fewer LEDs from a group.

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LED lighting system for vehicles that uses IoT technology to improve safety and efficiency. The system has a control device, an IoT system, and at least one LED lighting device. The IoT system includes sensors like a driver's seat sensor, windshield light sensor, and center console light sensor. This allows the system to detect conditions like streetlights, oncoming vehicles, and interior light levels. The control device uses this data to intelligently switch between high and low beams, wide beams, and interior lights. This improves visibility, reduces glare, and conserves power compared to fixed modes.

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Energy-saving LED lamp bead that adjusts brightness based on ambient light. The lamp has an LED bead, fixed box, control box, sensor module, current control module, control panel, and transmission module. The sensor detects ambient light and sends signal to the control panel. The panel adjusts current through the control module to the LED bead based on the sensor signal. This allows the lamp to dynamically adjust brightness based on ambient light, preventing overillumination and power waste when fixed brightness lamps are too bright.

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Multi-pixel adaptive driving beam (ADB) headlight control device for vehicles that uses a multi-pixel LED array to provide accurate adaptive lighting without sacrificing brightness. The device has separate communication interfaces to connect to the vehicle body controller, vehicle-mounted camera, and LED board. It uses vehicle status, front object information, and camera input to control the LEDs on the board to selectively turn them on/off for adaptive lighting without large dark areas. The device also switches between ADB working states based on vehicle conditions.

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Vehicle lighting system that allows dimming control using the existing power line instead of separate dimming wires or wireless signals. The system receives DC power from the vehicle battery and generates switched voltage levels based on dimming commands transmitted over the power line. Controllable power transmission units pass or drop the voltage level based on the dimming bits. LED driving circuits selectively drive LED elements based on the received voltage. This enables dimming through the power line without additional wiring or transceivers.

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Controlling the brightness of an LED light in a motorcycle headlight to prevent damage and optimize performance. The method involves monitoring the amount of energy converted in the LED and adjusting brightness based on that measurement. This prevents overheating the LED or components in the light. By influencing the LED brightness based on converted energy rather than just input power, it allows maximum brightness without risking damage. The converted energy measurement can be done internally in the light or externally in the motorcycle wiring.

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Vehicle interior light control system that uses an LED driver IC instead of an MCU to reduce components and simplify dimming. The IC receives power from the vehicle battery, turns on/off the interior light using door and switch signals, and performs dimming control internally. The IC has a priority logic to determine signal importance, a dimming block with PWM generation and capacitor to adjust dimming time, and protection features. This allows dimming and door control without an MCU or additional power conversion.

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LED vehicle lamp with adaptive brightness control that automatically adjusts brightness based on external light levels. The lamp has an internal adaptive control box and an external brightness monitoring box. The adaptive box contains the circuitry to control the LED beads. The monitoring box has a sensor to detect external light. A PLC analyzes the sensor data and sends instructions to the adaptive box to adjust the LED brightness based on external light levels. This prevents over-brightness in daylight and ensures adequate illumination at night.

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Vehicle lighting system that saves energy by dynamically adjusting brightness based on environment. The system uses a microcontroller connected to a switch circuit and light sampling circuit. The microcontroller receives brightness switching signals from the switch and ambient light information from the sampling circuit. It then controls the LED driving circuit to dynamically adjust the LED lamp group's brightness based on the switching signals or ambient light. This allows adaptive lighting that conserves power by matching brightness to needs.

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Vehicle lighting system that conserves power by dynamically adjusting brightness based on environment. The system uses a microcontroller connected to a switch and light sensor. The microcontroller receives switch signals for brightness levels and light sensor data. It then controls the LED driver to set the LED brightness based on the switch or environment. This allows the LEDs to adapt to different needs instead of fixed brightness.

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Regionalized LED lighting system that divides an environment into smaller areas and synchronously adjusts the brightness of LED lights in each area based on movement of people and vehicles. It uses wide-area IoT technology to connect the LED lights and allows coordinated brightness changes within an area when people/vehicles pass through. This provides visual comfort and saves energy by avoiding over-illumination.

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LED lighting system that intelligently adjusts brightness to save energy while maintaining proper lighting levels. The system uses sensors to detect natural light levels and spectrum near each LED lamp group. A control unit calculates the natural light brightness near each group based on the detected spectrum and distances between groups. This allows accurate determination of natural light levels without interference from other lamps. The control unit then adjusts lamp brightness based on natural light vs artificial light comparison. This prevents over-compensation for low natural light and prevents wasting energy in daylight.

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Vehicle lighting system that optimizes brightness based on driving mode to balance visibility and power consumption. The system adjusts the light distribution pattern of the headlights based on manual, assisted, or automated driving. In manual mode, brightness is set for clear visibility. In assisted/automated mode, lower brightness is used to conserve power since sensors can still capture surroundings.

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LED lamp that automatically adjusts brightness based on surrounding light levels to save energy and provide optimal illumination. The lamp has an onboard light sensor connected to the LED driver. When the sensor detects brightness, it sends a signal to the driver to adjust the LED output accordingly. This creates a dimming loop where the lamp brightness follows the surrounding light levels.

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A vehicle lighting system that provides precise control of light direction and light-emitting area for improved accuracy, lower cost, and ease of control compared to mechanical systems. The system uses individual LED pixels in the lamps that can be selectively turned on based on vehicle state. A controller communicates with the lamps to determine which pixels to activate based on factors like road width, slope, and turning. This allows tailored lighting patterns optimized for the vehicle's specific circumstances instead of fixed mechanical aiming.

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Microcontroller-based electronic switch with touchless motion sensing that allows user-friendly, contactless control of lighting features like intensity and color temperature. The switch uses a microcontroller with programmed functions to interpret motion signals from a sensor and control the LED lights accordingly. The sensor converts motion into a message carrying signal that the microcontroller reads. By adjusting conduction rates of the LED switches, the microcontroller can change light intensity and color temperature. The touchless motion sensor allows controlling the lights without physically touching switches. The microcontroller also allows customization of light features through programmed subroutines.

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An automated system for adjusting the brightness of LED car headlights based on environmental conditions and steering input. The system uses sensors to detect light levels, temperature, and steering angle. A control unit analyzes the sensor data to determine optimal headlight brightness. It then adjusts the power supplied to the LED headlights to automatically optimize illumination based on the environment and driving situation.

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A multi-channel LED lighting control system that allows arbitrary adjustment of LED lighting intensity for improved comfort, energy savings, and reduced consumption. The system uses a main controller, display terminal, and drive chip. The display terminal lets users adjust PWM duty cycles for each channel. The controller generates PWM signals based on the duty cycles and sends them to the drive chip. The chip receives the PWM signals and outputs current to the corresponding LED channels, allowing stepless dimming as duty cycle changes from 0-100%.

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Headlamp controller for vehicles with multiple LED modules that have different brightness characteristics. The controller can simultaneously control the LED modules to correct deviations in brightness and meet standards. It supplies power from a common terminal and adjusts brightness using pulse width modulation on each LED module. The controller recognizes module characteristics like resistance or temperature and adjusts brightness accordingly. This allows driving multiple LED modules with different characteristics together to meet standards.

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Controlling a backlight unit in a vehicle to optimize energy consumption while maintaining visibility. The backlight unit has a separate dimming control for the last LED in each string versus the entire string. This allows independent dimming of the first LED in each string. The main dimming control sets levels for the last LED of each string to control overall brightness. The separate dimming control for the first LED allows fine-tuning of the brightness of the first LED in each string. This allows some strings to be dimmed more than others or to have different dimming profiles. This improves flexibility and efficiency compared to globally dimming all strings together.

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LED lighting control system that optimizes energy usage by dynamically adjusting brightness based on factors like vehicle speed, traffic volume, and lane information. The system has sensors on the LED lights to detect approaching vehicles, and a central control unit. It calculates vehicle speed, traffic volume, and brightness levels based on factors like lane number. The control unit then sets the LED brightness accordingly to save energy when traffic is low, reduce glare for fast-moving vehicles, and balance brightness across lanes with fewer vehicles.

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A high-power LED headlight that automatically adjusts brightness based on ambient light conditions to improve visibility and save energy. The headlight has an LED lamp group, frequency converter, battery, signal processor, collecting cup, photosensor, and ultraviolet detector. The LED lamp set is mounted on the collecting cup with a heat sink between. The sensor and UV detector monitor ambient light and send signals to the processor. When light is low, the converter boosts battery voltage to increase lamp brightness. Conversely, when light is high, the converter reduces voltage. This dynamically adjusts headlight brightness based on ambient conditions.

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An intelligent LED lighting system for vehicles that adjusts brightness and color temperature based on ambient light conditions for optimal eye comfort. The system uses a sensor to detect ambient illumination, and a controller to automatically set the LED output accordingly. This allows the vehicle's interior and exterior lights to adapt to different external light levels for optimal visibility and comfort without overpowering the environment. The heat sink is also adjustable to optimize cooling based on the LED output.

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LED lighting component that adaptively adjusts the color rendering of its emitted light based on ambient light conditions to improve overall efficiency and reduce power consumption while maintaining perceived brightness. The component has multiple LED types and circuitry that monitor ambient light characteristics. It drives the LEDs to emit light with normal color rendering if ambient light has lower rendering but reduced rendering if ambient light has higher rendering. This allows matching or complementing ambient light color quality instead of both sources having high rendering.

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LED daytime running light for cars that adjusts brightness based on external light conditions and vehicle speed. The light has an LED light group, a circuit board, a photosensitive resistor, a wheel speed collector, and a control module. The control module receives input from the photosensitive resistor for external light intensity and the wheel speed collector for vehicle speed. It then adjusts the brightness of the LED light group accordingly to optimize visibility in various environments and conditions.

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A method for illuminating the interior of a vehicle using a lighting device that can operate without continuous power from the vehicle's electrical system. The method involves charging an internal storage device outside the lighting time using power from the vehicle's electrical system. During the lighting time, the stored energy is used to illuminate the interior without interrupting the vehicle's electrical power. The storage device can be adjusted to increase the power supplied to the light source during lighting and reduce it outside lighting to conserve energy.

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An intelligent LED headlamp for vehicles that automatically adjusts brightness based on driving conditions to provide optimal lighting for visibility without glare. The lamp has a control unit with a speed sensor, brightness calculator, and LED driver. It calculates an optimal brightness based on vehicle speed and drives the LEDs accordingly. This allows dynamic adjustment of light output to match proximity and surroundings.

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Tunnel lighting control device to optimize tunnel illumination based on external brightness, internal section brightness, and vehicle speed. It uses sensors to detect tunnel entrance, interior, and exit brightness, vehicle speed, and power consumption. A microcontroller adjusts the LED brightness in each section in real-time based on the sensor data. This prevents glare, black holes, and visual fatigue. It also reduces power consumption by dynamically matching interior brightness to external levels.

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Controlling LED headlamp illumination based on vehicle speed to improve visibility and safety without glare. The method involves calculating the optimal headlamp brightness based on sensed surrounding light levels and vehicle speed. If surroundings are bright during the day, lower headlamp output is used. At night or low light, headlamp output increases with speed to provide sufficient visibility. This prevents over-illumination at low speeds and ensures adequate light at high speeds.

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Stepless dimming of LED tunnel lights using PWM control to efficiently adjust brightness based on external conditions. The control system uses a lighting device connected to a computer that receives brightness and vehicle sensor data. It generates PWM signals to dim the LED lights steplessly. This allows dynamically optimized lighting levels for environments and traffic conditions. It avoids wasted stepped dimming levels. The PWM signals control current output of the LED constant current supplies.

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LED dimmer with adjustable brightness using an encoder, microcontroller, and multi-stage amplifier circuit. The dimmer allows adjusting LED brightness according to environment requirements and saves energy compared to constant brightness LEDs. A rotary encoder generates a PWM signal that is processed by a microcontroller to generate a PWM control signal. This signal drives a multi-stage amplifier circuit to control the LED brightness levels.

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Optimizing streetlight dimming to reduce power consumption without compromising visibility for drivers. The streetlights have multiple LED units that can be dimmed individually. The dimming is controlled based on time zones to match traffic volumes. During low traffic times, some LEDs are dimmed less than others to maintain sufficient road illumination while saving energy. This avoids uniform low illuminance that can impair driver vision. The streetlights are divided into sections based on vehicle progress direction, and LEDs within each section are dimmed independently.

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Accurately determining light intensity output of LEDs to compensate for aging and avoid color shifts without erroneous adjustments due to sensor chain degradation. The technique involves using a reference LED with shorter duty cycle than the operating LEDs of the same wavelength. The shorter duty cycle reduces its light output over time relative to the operating LEDs. By sensing both the reference and operating LEDs, the intensity changes can be distinguished as due to the aging LEDs versus sensor chain degradation. The controller adjusts current based on the operating LED intensities to maintain output, rather than combined sensed intensities that include sensor chain aging.

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Adaptive headlight system for vehicles that automatically adjusts brightness and range of the headlights based on driving conditions. The system has a light source unit with at least one LED, a driving current supply, and a control unit. The control unit receives environment data like speed and ambient light and determines the appropriate headlight brightness and number of active LEDs based on driving conditions. This allows dynamic adapting headlight performance for safer driving in low light vs high-speed situations.

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