Abstract: A camera module includes a housing having an internal space, and a first lens module and a second lens module disposed in the internal space and each configured to be movable in an optical axis direction, wherein a first shaft and a first ball member are disposed between the first lens module and the housing, wherein a second shaft and a second ball member are disposed between the second lens module and the housing, and wherein, when moving in the optical axis direction, rolling friction occurs on one of both sides of each lens module, and sliding friction occurs on the other of both sides.

Abstract: A camera module includes a housing, a reflective member positioned in the housing and changing a direction of light to a direction of an optical axis, a carrier carrying the reflective member and rotatable about a first axis with respect to the housing, and a first ball group disposed between the housing and the carrier, wherein the first ball group includes a main ball member providing the first axis of the carrier, and an auxiliary ball member disposed away from the first axis, and one or both of the housing and the carrier partially accommodates the auxiliary ball member, and includes an auxiliary guide groove extended in a circumferential direction of the first axis.

Abstract: A camera module includes a housing, a reflective member positioned in the housing and changing a direction of light to a direction of an optical axis, a carrier carrying the reflective member and rotatable about a first axis with respect to the housing, and a first ball group disposed between the housing and the carrier, wherein the first ball group includes a main ball member providing the first axis of the carrier, and an auxiliary ball member disposed away from the first axis, and one or both of the housing and the carrier partially accommodates the auxiliary ball member, and includes an auxiliary guide groove extended in a circumferential direction of the first axis.

Abstract: An operation controller of a fuel cell and an operation control method thereof in a system for generating a drive output through a fuel cell and a battery includes a processor for selectively performing a driving stop control of the fuel cell through an operation variable including a required drive output and a load weight.

Abstract: A camera module includes a housing, a reflective member positioned in the housing and changing a direction of light to a direction of an optical axis, a carrier carrying the reflective member and rotatable about a first axis with respect to the housing, and a first ball group disposed between the housing and the carrier, wherein the first ball group includes a main ball member providing the first axis of the carrier, and an auxiliary ball member disposed away from the first axis, and one or both of the housing and the carrier partially accommodates the auxiliary ball member, and includes an auxiliary guide groove extended in a circumferential direction of the first axis.

Abstract: An energy storage system includes a housing including an opening formed therein and an accommodation space disposed therein; a plurality of battery modules accommodated in the accommodation space; a door coupled to the housing and rotating and configured to open and close the opening; a measurement unit configured to derive an environmental value by measuring at least one of temperature, gas concentration, or pressure of the accommodation space in real time; and a control unit configured to compare the environmental value derived from the measurement unit with a predetermined limit value, wherein the control unit may be configured to open the door when the environmental value is determined to exceed the limit value.

Abstract: A control system for a fuel cell vehicle includes a driving motor of the fuel cell vehicle, a brake system of the fuel cell vehicle, and a controller configured to derive a required target regenerative braking torque when the fuel cell vehicle rolls in an opposite direction to a traveling direction on a slope and, when an available regenerative braking torque of the driving motor is less than the required target regenerative braking torque, control the brake system to generate braking torque by as much as a difference between the required target regenerative braking torque and the available regenerative braking torque.

Abstract: A method and apparatus for controlling an electro-mechanical brake are disclosed. An embodiment of the present disclosure provides a method for controlling an electro-mechanical brake (EMB) of a vehicle, comprising: measuring a pedal stroke value; determining whether the pedal stroke value exceeds a first threshold; in response to determining that the pedal stroke value does not exceed the first threshold, generating a first braking force for reducing an air gap of the EMB; in response to determining that the pedal stroke value exceeds the first threshold, setting a target braking force for decelerating the vehicle; and after setting the target braking force, generating a second braking force based on the target braking force, wherein a magnitude of the first braking force is determined based on an increase rate of the pedal stroke value over time, and wherein the target braking force is proportional to the pedal stroke value.

Abstract: An energy storage apparatus of the present disclosure includes an accommodating body including an accommodating portion including a layered structure provided with an accommodating space and an internal passage through which a fluid is allowed to pass, and a battery cell accommodated in the accommodating space, wherein the battery cell is in thermal contact with a fluid passing through the internal passage.

Abstract: An energy storage system may include: a cabinet including a mounting portion capable of mounting a plurality of battery modules thereon and a door member capable of being opened and closed; and a venting portion emitting gas occurring in an internal space of the cabinet, wherein the venting portion includes at least one inlet communicating with the internal space and allowing the gas to flow into the inlet; and at least one outlet disposed in an outer surface of the cabinet and communicating with the inlet.

Abstract: An energy storage device includes a housing having an internal space; a plurality of battery modules accommodated in the internal space; a mounting portion disposed in the housing and on which the plurality of battery modules are mounted; a door member coupled to the housing to be openable and closable; and at least one connecting portion of which at least a portion is exposed to the outside of the housing and electrically connected to the plurality of battery modules.

Abstract: An apparatus and method for controlling driving of a vehicle are provided and the apparatus includes a lamp that projects a lamp light onto one of a left floor surface or a right floor surface of the vehicle, a camera that obtains an image of an area onto which the lamp light is projected, and a controller that determines whether to output a warning based on the image of the area onto which the lamp light is projected when the lamp light is projected onto a boundary stone located around at least one of the left floor surface or the right floor surface of the vehicle.

Abstract: An energy storage system including a housing having an internal space; a plurality of battery modules accommodated in the internal space; a door portion coupled to the housing in such a manner as to be openable or closable; a cooling unit configured to supply a refrigerant to the internal space; and a guide unit disposed on one side of the cooling unit to guide a flow of the refrigerant, is disclosed.

Abstract: A fuel cell system includes a fuel cell stack including a cathode and an anode. The system also includes an air compressor configured to send air to the cathode of the fuel cell stack. The system also includes an air adjustment valve configured to adjust air flowing from the air compressor into the cathode. The system also includes a hydrogen flow line configured to deliver hydrogen to the anode and discharge the hydrogen that has passed through the anode. The system also includes a controller controlling at least one of a rotation speed of the air compressor or an opening ratio of the air adjustment valve, based on at least one of a voltage of a fuel battery cell or a hydrogen concentration of the anode, in a stop control mode of the fuel cell stack.

Abstract: A fuel cell system includes a fuel cell stack and a battery that are connected to a high voltage line in parallel, a converter connected to the high voltage line and the battery while being located therebetween and configured to control a voltage at the high voltage line, and a controller, in a stop control mode of the fuel cell stack, when an error occurs in a drop control of an output voltage of the fuel cell stack, the controller dropping the voltage at the high voltage line under the output voltage of the fuel cell stack by the converter to drop the output voltage of the fuel cell stack.

Abstract: An energy storage system is disclosed. In an embodiment, the energy storage system includes a battery module including at least one battery cell, and a battery enclosure structured to accommodate the battery module. The battery module includes a case structured to include a first case forming a side of the battery module. The first case includes a first case body forming the side of the battery module, and a vent portion formed in the first case body. The battery enclosure includes an enclosure frame structured to accommodate the battery module, and a wall assembly forming a wall of the battery enclosure and coupled to the enclosure frame. The wall assembly includes a duct module including a duct coupled to the first case and structured to communicate with the vent portion.

Abstract: An apparatus of operating an OTA update for a vehicle includes an input device receiving approval information for approving an OTA update process of a vehicle from a user and an execution device executing one of a first process or a second process in response to the approval information being entered. Each of the first process and the second process includes at least one of a battery charging process of a battery in the vehicle or the OTA update process of the vehicle.

Abstract: A camera module includes a housing, a reflective member positioned in the housing and changing a direction of light to a direction of an optical axis, a carrier carrying the reflective member and rotatable about a first axis with respect to the housing, and a first ball group disposed between the housing and the carrier, wherein the first ball group includes a main ball member providing the first axis of the carrier, and an auxiliary ball member disposed away from the first axis, and one or both of the housing and the carrier partially accommodates the auxiliary ball member, and includes an auxiliary guide groove extended in a circumferential direction of the first axis.

Abstract: A hydrogen supply system for fuel cells and a method of controlling the same include a hydrogen supplier connected to a hydrogen provider and configured to receive hydrogen from the hydrogen provider through a supply valve, a supply line, a discharge line, a discharge valve provided on the hydrogen supplier to discharge by-products, collected in the hydrogen supplier, to the outside thereof, and a controller electrically connected to the supply valve and configured to set a basic duty of the supply valve based on a basic control map, to set a compensation duty of the supply valve depending on feedback control, and to set a final duty of the supply valve through the basic duty and the compensation duty.

Abstract: A reflective module assembly include a housing having an internal space, a first reflective module provided in the housing to change a path of incident light, and a second reflective module provided in the housing to change a path of light emitted from the first reflective module. The first reflective module includes a first reflective member rotatable about a first axis formed by at least two first ball members. The second reflective module includes a second reflective member rotatable about a second axis, perpendicular to the first axis and passing through a rotation axis ball provided at the second reflective module.