This light-emitting element drive control device (100) comprises: a drive logic unit (113) which performs a drive control of a switch output stage (N1, D1, L1) for dropping an input voltage (VIN) to an output voltage (VOUT) and supplying a light-emitting element therewith: a charge-pump power supply unit (α) which generates a step-up voltage (CP) higher than the input voltage (VIN); and a current detecting comparator (114) which receives a supply of the step-up voltage (CP) and the output voltage (VOUT) as power supply voltages, and generates control signals (SET, RST) for the drive logic unit (113) by directly comparing a current detection signal (Vsns) corresponding to an inductor current (IL) of the switch output stage with a peak detection value (Vsns_pk) and a bottom detection value (Vsns_bt).

A vehicle lighting system (4) comprising: a road surface drawing lamp (42) configured so as to emit light toward an object such as the ground surface or a wall in the surroundings of a vehicle (1), thereby drawing prescribed information as a road surface drawing; a brightness sensor (45) that can measure the brightness of the surroundings of the vehicle (1); and a lamp control unit (43) that controls the road surface drawing lamp (42), wherein when the brightness measured by the brightness sensor (45) exceeds a prescribed brightness, the lamp control unit (43) displays the prescribed information on a vehicle-exterior display unit (46) that can display the prescribed information.

A method of activating a vehicle function is provided. The method includes detecting a force exerted onto a bed step of a vehicle using a pressure sensor. A controller detects whether the amount of force exerted onto the bed step is greater than a force threshold. When the force exertion force exceeds the force threshold, one of a plurality of pressure patterns is detected. One of a plurality of vehicle functions is then activated based on the detected pressure pattern.

The present disclosure relates an integrated module including a camera and a lamp, and may include a camera that acquires an image of a periphery of a vehicle and provide the image, at least one first lamp and at least one second lamp disposed at at least one location of an upper side and a lower side of the camera in a direction of a transverse axis of the camera, and a lamp controller that provides electrical energy for the first lamp to the first lamp and provides electrical energy for the second lamp to the second lamp according to daytime/nighttime determination information based on the image.

A reflector unit may behave as a retroreflector to reflect light of a selected color. The reflector unit may comprise a first reflector having a first color, a second reflector having a second color, and a mask that either allows incoming light to reach the first reflector and not the second reflector or allows incoming light to reach the second reflector and not the first reflector. An active light unit may emit light of a particular color in response to receiving light. In this fashion, the active light unit may simulate the operation of a reflector. The reflector unit and the active light unit may operate on a bi-directional vehicle.

This light-emitting element drive control device (100) comprises: a drive logic unit (113) which performs a drive control of a switch output stage (N1, D1, L1) for dropping an input voltage (VIN) to an output voltage (VOUT) and supplying a light-emitting element therewith: a charge-pump power supply unit (α) which generates a step-up voltage (CP) higher than the input voltage (VIN); and a current detecting comparator (114) which receives a supply of the step-up voltage (CP) and the output voltage (VOUT) as power supply voltages, and generates control signals (SET, RST) for the drive logic unit (113) by directly comparing a current detection signal (Vsns) corresponding to an inductor current (IL) of the switch output stage with a peak detection value (Vsns_pk) and a bottom detection value (Vsns_bt).

This light-emitting element drive control device (100) comprises: a drive logic unit (113) which performs a drive control of a switch output stage (N1, D1, L1) for dropping an input voltage (VIN) to an output voltage (VOUT) and supplying a light-emitting element therewith; a charge-pump power supply unit (α) which generates a step-up voltage (CP) higher than the input voltage (VIN); and a current detecting comparator (114) which receives a supply of the step-up voltage (CP) and the output voltage (VOUT) as power supply voltages, and generates control signals (SET, RST) for the drive logic unit (113) by directly comparing a current detection signal (Vsns) corresponding to an inductor current (IL) of the switch output stage with a peak detection value (Vsns_pk) and a bottom detection value (Vsns_bt).

A digital license plate includes a display system capable of showing a license number readable by camera systems even under poor external lighting conditions. A light redistribution element is positioned near the display system and a lighting system is positioned to direct light from the light redistribution element and toward the display system. In some embodiments the lighting system includes a non-visible lighting element such as can be provided by an infrared source, and the display system includes an electrophoretic or LCD display.

The present disclosure relates to a motor vehicle, comprising an illumination device, which comprises a plurality of light sources and a control device for illuminating an illumination region which can be simultaneously illuminated and which completely covers the surroundings of the motor vehicle in the circumferential direction. The illumination region is divided by means of the control device into illumination segments, which are controllable independently for illumination as part of at least one light function, in particular an assisting light function, of a vehicle system, wherein the illumination region of the illumination device has at least two illumination segments, one following the other in a spacing direction from the motor vehicle.

A control system is provided for a refuel or recharge door of a vehicle, which includes a vehicle controller. The system has a housing with a port, a door removably attached to the housing, a system controller, and at least one module. The system controller is communicably connected to a vehicle controller of the vehicle. Further, the system controller is configured to control the at least one module.