A intelligent headlight system for a bicycle according to an embodiment of the present invention comprises: a bicycle body; a portable terminal which may be carried by a rider of the bicycle body and has a GPS module, for detecting the location information of the bicycle body, so as to measure the running speed on the basis of the location information of the bicycle body; and a headlight apparatus which is disposed on the bicycle body so as to cast light on the scene ahead of the bicycle body, is communicatably connected to the portable terminal so as to receive the running speed of the bicycle body, and is formed such that irradiation patterns may vary in accordance with the running speed of the bicycle body.

A control unit of an optical axis control device for a headlight calculates a first vehicle angle () and a second vehicle angle () at different timings in traveling of a vehicle, and calculates a third vehicle angle (s) at which a difference between acceleration signals in a front-rear direction (X) is zero. The control unit calculates a representative value (S) based on a distribution of a plurality of third vehicle angles (s), and generates a signal for operating an optical axis of the headlight based on the representative value (S).

An adaptive lighting system for an automotive vehicle. The adaptive lighting system has a wavelength conversion device for receiving the light radiation (L) from the primary source and re-emitting white light radiation (B). An optical imaging system receives the white light (B) re-emitted by the wavelength conversion device and projects this light (B) in front of the vehicle to form a lighting beam, the wavelength conversion device being situated close to a focal plane of the optical imaging system, and the scanning system and the optical system being situated on the same side or on opposite sides of the wavelength conversion device. An intensity of the white light radiation (B) emitted by the wavelength conversion device is capable of being modulated between a minimum value and a maximum value, and the scanning is performed at variable speed.

A vehicle lighting device is provided which causes a phenomenon whereby bright areas of an irradiation pattern seem to flow on the roadside of the road, and can give a psychological effect prompting a change in vehicle speed to drivers. A vehicle lighting device includes: a pattern irradiation part which irradiates an irradiation region on a side of a travel path of one's own vehicle by a bright/dark mixed irradiation pattern in which bright regions and dark regions are alternately repeated; a situation recognition device which recognizes a situation prompting a deceleration action or acceleration action to a driver of one's own vehicle, and obtains an output corresponding to the recognition; and a controller which controls the pattern irradiation part so that bright regions and dark regions of the pattern irradiation light move in a front/rear direction of the vehicle, based on the output of the situation recognition device.

An adaptive light beam unit attachable to a vehicle including: At least one light engine assembly, wherein the at least one light engine assembly includes at least one light engine, the at least one light engine includes at least one light source and at least one reflector adapted to reflect light emitted from the at least one light source to form a light beam; At least one sensor for measuring angle of rotation of the vehicle; At least one motor connected to the at least one light engine assembly for changing a projection angle of the light beam; At least one controller operatively connected to the least one light engine assembly and the at least one sensor, whereby the at least one controller receives information on the angle of rotation of the vehicle, and drives the at least one electrical motor to maintain or alter the projection angle of the light beam such that a desired lighting positioning is obtained based on a pre-determined scenario.

In a headlight optical-axis control device 10, a controller 15 is configured to: calculate vehicle angles indicating tilt angles of a vehicle relative to a road surface, on the basis of ratios, each being a ratio of a difference between a reference acceleration in a longitudinal direction and a signal indicating an acceleration in the longitudinal direction detected during traveling of the vehicle, to a difference between a reference acceleration in a perpendicular direction and a signal indicating an acceleration in the perpendicular direction detected during traveling of the vehicle by an acceleration sensor 2; calculate a plot of the calculated vehicle angles thereby to derive a vehicle angle corresponding to a case where a change of the acceleration in the longitudinal direction is zero; and generate a signal for controlling the optical axes of headlights 5L and 5R on the basis of the derived vehicle angle.

A headlight optical axis control apparatus calculates an inclination angle of a vehicle with respect to a road surface from a ratio of a difference between acceleration signals in the front-and-rear direction measured at two time points (kn, kn+1) to a difference between acceleration signals in the up-and-down direction measured at the two time points (kn, kn+1), the two time points being in the vicinity of a time when the attitude of a vehicle body becomes equivalent to a stationary state, in a period from a time when the travelling vehicle stops to a time when the vehicle body comes to a halt.

A lamp for a vehicle includes a laser diode configured to output light, an interface configured to communicate with a brake device of the vehicle, and at least one processor coupled to the interface and configured to receive brake operation information from the brake device via the interface, and control a light output of the laser diode based on the brake operation information.

A control device may include a sensing unit configured to sense a topographical state of a road surface on which a vehicle is travelling. The control device may also include at least one processor configured to, based on the topographical state of the road surface being a first topographical state, control a head lamp of the vehicle to be in a first output state that outputs light to a first area ahead of the vehicle. The at least one processor may also be configured to, based on the topographical state of the road surface changing to a second topographical state different from the first topographical state, control the head lamp of the vehicle to change to a second output state that maintains the output of the light to the first area ahead of the vehicle.

Methods and systems for vehicle safety lighting are disclosed, including a system having a multi-axis accelerometer that detects acceleration of the vehicle along a first axis and a second axis normal to the first axis, and outputs a corresponding first axis acceleration measurement and a second axis acceleration measurement. A controller is coupled to the multi-axis accelerometer, and to an array of light emitter elements (LELs). The controller is configured to determine a vehicle deceleration, based at least in part on a combination of the first axis acceleration measurement and second axis acceleration measurement, and to detect the vehicle deceleration exceeding a brake light threshold and, based at least in part on the detection, output a deceleration light signal to the array of LELs. Digital filtering prevents operation of the safety lighting by accelerometer outputs unrelated to axial deceleration, such as will occur upon encountering a hill, or, in the case of a motorcycle or the like, leaning into a turn.